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  • 2022.08.17

    The Four E's of a Medical Equipment Mould

    A medical equipment mould is a crucial component of a variety of medical devices. The process of mould making is not simple, however. It must be performed in a controlled environment. There are several factors to consider, including product safety, quality, and timeliness. These factors should be taken into account to ensure that your medical equipment mould is of the highest possible standard. Class III medical devicesThe strictest regulatory standards in the industry apply to class III medical equipment, including implantable pacemakers, continuous glucose monitors, and other such devices. Typically, moulding for these products is done in cleanrooms that prevent the contamination of the components through airborne particulate matter. But, the cleanroom requirements can be prohibitively expensive, and the process also requires skilled personnel to meet the necessary quality standards. Fortunately, there are a number of ways to maintain quality standards.The manufacturing facility must meet certain standards, including the ISO 13485:2003 standard. It must also adhere to biocompatibility regulations, including USP Class VI biocompatibility, and ISO 10993:2003. These standards include a detailed list of control procedures, including risk management and lot traceability. The FDA has classified medical devices into three classes according to the level of risk associated with each one. Molding for these devices is done using post-processing operations that can help ensure continuous compliance.Medical equipment moulds are often quite complex, with intricate details that should not be overlooked. From cardiac EKG machines to IV pumps, surgical carts to housings for oxygen and IV pumps, this type of moulding requires a highly skilled engineering team to ensure that each part meets the standards set by the FDA. By applying the highest standards, manufacturers can ensure the safety of their products and minimize the risk of contamination. They also want to ensure their products are manufactured as cleanly as possible to minimize any damage they can cause to patients.Class II medical devicesWhen looking for a moulder, consider the following: environment, processes, and quality. Are you able to transition seamlessly from prototype to initial production and from low-volume to high-volume production? Can you maintain quality standards and customer satisfaction during this transition? These are the four E's that are most important for medical molders. Read on to learn more about the specific challenges facing the industry. Then, select a moulder who is capable of meeting these challenges.Cleanroom environment: When a molder uses a cleanroom, the process is highly regulated. Cleanrooms are important for producing Class II medical equipment because they protect against airborne particles. Injection molding processes should be ISO 7 or ISO 8, which means a minimum of 10,000 pollution particles per cubic meter. ISO 8 cleanrooms are also the most stringent. Cleanrooms are also necessary for manufacturing Class II medical devices.Lubrizol Life Science Health: A contract molder that specializes in scientific injection molding has the knowledge and expertise to produce high-quality products. This includes everything from material selection to clean room packaging. The company started out as a small molder with limited resources and has expanded into one of the largest medical equipment parts manufacturers in the country. Its extensive capabilities and experience in this area allow it to meet even the most complex needs of medical equipment manufacturers.Class I medical devicesThe manufacturing process for Class I and II medical devices is very similar. In addition to moulding the plastic parts, these companies also need to meet rigorous quality standards and strict regulatory requirements. This consists of many steps, including the selection of engineering materials, quality management systems and cleanrooms. In addition, a high-skilled workforce is essential. In addition, the Four E's are used to define the standards that must be met in the manufacturing process.The process and materials for producing medical devices must be standardized and adhere to ISO regulations. This process is suited to manufacturing high-volume, complex components. It is also efficient, yields excellent results, and is capable of a rapid turnaround. In addition, it offers a wide range of materials that can be used to manufacture Class I medical equipment moulds. The advantages of medical injection molding are numerous. For instance, a medical injection mold can be used for prototyping.

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  • 2022.08.11

    Choosing the Right Auto Parts Mould

    Choosing the right Auto parts mould is critical to the success of any automotive manufacturing business. The characteristics of the plastic raw materials, the injection molding machine, and the process used in the manufacturing process all influence the quality of the end product. With this in mind, Kemal's professional technical staff provides excellent design solutions for the automotive mould's structure. The material is selected based on the toughness and stability properties of the material and the professional operators control the injection pressure and speed to achieve a high level of accuracy.High-quality plastic injection moldsAutomotive OEMs are increasingly turning to high-quality plastic injection molds for automotive parts. This conversion helps vehicles achieve higher fuel efficiency and reduce weight, while also meeting emissions standards and operational cost reductions. Injection molded parts are essential for auto parts, since automotive operating environments can be harsh and contain high levels of chemicals. These parts must also meet high levels of quality and performance. Listed below are some characteristics of high-quality plastic injection molds for auto parts.The main advantage of automotive injection molding is its ability to produce parts of high quality with simple geometries. Moreover, manufacturers can customize the surface finish of their auto parts by adding surface textures or applying color directly to the mold. Automotive injection molding also enables color modification. It allows dye to be mixed with the raw material pellets for a solid color after molding. A wide variety of colors and finishes are possible with this process, making it an excellent choice for carmakers looking to create automotive-grade parts.High surface finishTo produce a high-quality auto part, the surface finish on the mould must be of a high standard. This finish may not be as important as you might think, as it does not directly affect the look of the final product. However, it can affect the flow of material into the mold. A poor surface finish can prevent the material from reaching all the parts, causing them to prematurely cure and crack. Ultimately, this may result in an unsatisfactory finished product.A good surface finish affects the part's function and cosmetic appearance. It also limits the tool steel's ability to produce a smooth or high-gloss finish. For example, a high-gloss finish would hide minor molding imperfections, while a rough surface would be more difficult to release from the mould. To reduce this problem, the surface finish should be of high quality. For this reason, the toolmakers and designers should coordinate closely during the design phase to ensure a good finish.DurabilityThe modern automotive industry requires more complicated automotive parts than ever before, from sophisticated aerodynamics to fuel-efficient engines. Injection-molded parts have played a critical role in reducing vehicle weight, contributing to a decrease in fuel consumption. With their high durability and light weight, plastics are increasingly being used as a substitute for metal, which is heavy and unreliable. In addition to these benefits, plastics are cheaper and more lightweight than metal, making them a great choice for car makers.In addition to the ability to produce durable and accurate products, auto parts moulds also require high-precision inspection equipment. Online inspection technology ensures dimensional accuracy of products made by an automotive mould. A hot runner or sequential injection technology improves mold productivity and quality while saving raw materials and reducing waste. This technology is the only one on the market that offers such advanced features. Kemal Automotive Solutions' engineers have the knowledge and experience to ensure the durability and quality of your automotive molds.ScalabilityThe automotive industry requires high-quality plastic injection moulds. These moulds are used to produce metal, thermoplastic and other automotive parts. Thanks to advancement in technology, auto parts mould production can now be more precise than ever. Three-dimensional drawings provided by manufacturers help them to keep to the exact specifications. This ensures that the finished products meet all the design criteria. For this reason, the scalability of auto parts mould is of paramount importance.The productivity of the mold depends on the sprue bushing, runner and gate design, cooling, and ejection. The design of these components affects cycle time and part quality. Runner and gate design and cooling is one of the most important areas of auto parts mould design. Injection molding is highly scalable and offers a cost-effective solution for mass-production. China injection molds are one of the best options for low-cost manufacturing.BrandingThe process of creating a brand new mould involves several steps. An auto parts mould is used to create the various components of a car. A large investment in the mold is paid off by only financing the materials. The up-front cost of a mould will often pay for itself after only a few runs of product. The cost of materials can be quite costly, so many auto manufacturers choose to invest in a custom mold. In the process of creating a custom auto part mould, a company can get a unique shape for their products and a logo that represents them.To ensure the quality of your branded car parts mould, it is important to ensure that the moulds are manufactured to the highest standards. Bluestar has a team of nearly 100 staff members who specialize in mould design and engineering. They also provide after-sales service and quality inspection. Several companies even offer an ERP system that facilitates their processes. In addition to this, they use CAD software and computer imitation to assist in design.

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  • 2022.08.05

    Do you know these characteristics and advantages of stamping dies

    The material types of stamping dies include steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloys, low melting point alloys, aluminum bronzes, polymer materials, etc.At present, the materials of stamping dies are mainly steel, and the commonly used types are carbon tool steel, low alloy tool steel, high carbon and high chromium, medium carbon alloy steel, high speed steel, basic steel, cemented carbide, steel bonded cemented carbide, etc. .Features and advantages of stamping die:1. The number of parts completed by the stamping die per unit time is several times, even hundreds to thousands of times that of the general processing method. Moreover, the stamping process can use a combined processing method on a set of molds to further improve production efficiency.2. The products produced by the stamping die have the characteristics of stable quality, strong mechanical properties, compact structure, good interchangeability, good wear resistance, convenient maintenance and mass production.3. The material utilization rate of the stamping die is high, and a variety of layout methods can be used, such as cross, oblique, multi-row, mixing, nesting, etc., which can reduce the material cost of the product.4. Usually, there is no need to heat the material during the stamping process, which not only saves energy, reduces the occupation of heating equipment and venues, but also avoids product surface oxidation, burns and deformation caused by heating.5. Stamping dies are widely used and can solve operations that cannot or are difficult to complete by general processing methods, especially suitable for the processing of thin, soft, difficult and micro parts.

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  • 2022.07.29

    What are the classification of automobile molds according to the nature of the process

    The most important part of the automobile mold is the cover mold. Such dies are mainly cold stamping dies. In a broad sense, "automotive molds" are the general term for molds that manufacture all parts of an automobile. For example, stamping molds, injection molds, forging molds, casting wax molds, glass molds, etc. What are the classification of automobile molds according to the nature of the process?a. Blanking die: A die that separates materials along a closed or open contour. Such as blanking dies, punching dies, cutting dies, incision dies, trimming dies, cutting dies, etc.b. Bending die: A die that bends and deforms sheet blanks or other blanks along a straight line (bending line) to obtain a workpiece with a certain angle and shape.c. Deep drawing die: It is a die that makes the blank of the sheet into an open hollow part, or further changes the shape and size of the hollow part.d. Forming die: It is a die that directly copies and forms the blank or semi-finished workpiece according to the shape of the convex and concave die, and the material itself only produces local plastic deformation. Such as bulging die, shrinking die, flaring die, undulating forming die, flanging die, shaping die, etc.Suzhou Wellhong Electric Co., Ltd. is a professional mould manufacturer. Some moulds are exported to Japan, Europe and the United States. We have the right to import and export the goods. We can develop and manufacture the moulds according to the needs of our customers. We pay attention to quality control, new project development, personnel training, team spirit. In recent years, we have established long-term business relationships with many well-known enterprises at home and abroad.

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  • 2022.07.22

    What should be paid attention to in plastic molds

    1. Don't focus on product design and ignore plastic mould manufacturer.When some users develop products or trial production of new products, they often only focus on product research and development at the initial stage, ignoring the communication with the plastic mold making unit. After the product design plan is initially determined, contacting the mold manufacturer in advance has two advantages:1. It can ensure that the designed product has a good forming process, and the finalized design will not be modified because the parts are difficult to process.2. The mold maker can make design preparations in advance to prevent ill-consideration in a hurry and affect the construction period.3. To make high-quality plastic molds, only the close cooperation between the supply and demand sides can ultimately reduce the cost and shorten the cycle.Second, don't just look at the price, but consider the quality, cycle and service in all aspects.1. There are many types of molds, which can be roughly divided into ten categories. According to different requirements of parts material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, economy, etc., different types of molds are selected for forming.2. Molds with high precision requirements need to be processed by high-precision CNC machine tools, and mold materials and forming processes have strict requirements, and CAD / CAE / CAM mold technology needs to be used for design and analysis.3. Some parts have special requirements during molding, and the mold also needs to use advanced processes such as hot runner, gas-assisted molding, and nitrogen cylinder.4. Manufacturers should have CNC, EDM, wire cutting machine tools and CNC copy milling equipment, high-precision grinding machines, high-precision three-coordinate measuring instruments, computer design and related software.5. Generally, large-scale stamping dies (such as automobile cover molds) should consider whether the machine tool has a side blanking mechanism, or even side lubricant, multi-station progressive, etc. In addition to stamping tonnage, punching times, feeding devices, machine tools and mold protection devices should also be considered.6. The manufacturing methods and processes of the above-mentioned molds are not possessed and mastered by every enterprise. When choosing a cooperative manufacturer, you must understand its processing capabilities, not only by looking at hardware equipment, but also by combining management level, processing experience and technical strength.7. For the same set of molds, there is sometimes a big gap between the quotations of different manufacturers. You should not pay more than the value of the mold, nor less than the cost of the mold. Mold manufacturers, like you, want to make reasonable profits in their business. Ordering a set of molds at a much lower price can be the start of trouble. Users must start from their own requirements and comprehensively measure.Third, avoid multi-head cooperation, try to make plastic molds and product processing one-stop.1. With qualified molds (qualified test pieces), batches of qualified products may not be produced. This is mainly related to the selection of the machine tool for processing the parts, the forming process (forming temperature, forming time, etc.) and the technical quality of the operator.2. With a good mold, there is also a good forming process, preferably one-stop cooperation, and try to avoid multi-head cooperation. If the conditions are not met, it is necessary to choose one party to be fully responsible, and it must be written clearly when signing the contract.

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  • 2022.07.15

    Analysis of the causes and consequences of the gas produced by the mold

    Why does the mold generate gas when making the product?①The material in the feeding system entrains gas or the air originally exists in the cavity, and the gas in the runner and cavity is not discharged in time during the forming process.②Insufficient drying in the resin contains water, which evaporates and becomes water vapor at the injection temperature.③ The injection temperature is high, and the plastic decomposes to generate gas.④ Some additives in the resin, volatilize or chemically react to generate gas (for example, when thermosetting plastics are formed, not only the plastic itself contains moisture and volatile components, but also a polycondensation reaction occurs during the curing process, resulting in condensation water and low-molecular-weight volatile gases).⑤ Residual gas in resin. Injection parts automotive Injection molding is a process that allows plastics to be molded with metal or ceramic inserts. These metal or ceramic inserts are placed in a mold and then melted plastic is injected to create a seamless piece. This type of molding is ideal for automotive applications because it reduces weight and utilizes metal to reduce operational costs. It is important to select the right mold for your needsm The type of steel you use will also determine the cost of the mold. Whether to customize: Yes Mold accuracy: ±10μm Mold life: 300,000~500,000 mold times Consequences of poor mold exhaust① The gas undergoes large compression to generate a back pressure, and this back pressure increases the resistance of the molten material to the filling flow, preventing the molten plastic from filling the mold normally and quickly, so that the mold cavity cannot be filled, resulting in unclear plastic edges.② There are obvious flow marks and weld seams on the product, and the mechanical properties of the product are reduced.③ After the gas is compressed, it will penetrate into the inner layer of the plastic, causing the plastic to produce surface quality defects such as silver streaks, pores, loose tissue, and delamination.④ After the gas in the cavity is compressed, heat is generated and the local temperature of the plastic rises, the plastic melt is decomposed and discolored, and even charred and carbonized.⑤ Poor exhaust, reducing the filling speed, increasing the cycle of forming parts (especially high-speed injection molding), seriously affecting productivity

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  • 2022.07.08

    Precautions for mold heat treatment

    1) Strictly control the inherent quality of mold raw materials2) Improve the forging and spheroidizing annealing process, eliminate the network, ribbon and chain carbides, and improve the uniformity of the spheroidized structure.3) After machining or cold plastic deformation, the mold should be subjected to stress relief annealing (>600℃) before heating and quenching.4) For molds with complex shapes, asbestos should be used to block threaded holes, dangerous sections and thin walls should be wrapped, and graded quenching or isothermal quenching should be used.5) Annealing or high temperature tempering is required when repairing or refurbishing the mold.6) The mold should be preheated during quenching and heating, and pre-cooling measures should be taken during cooling, and an appropriate quenching medium should be selected.Breath collector upper cover moldAmong the best respiratory equipment available on the market is the Upper cover mould of the respirator. This type of mask is designed to keep the user cool while preventing him from breathing in toxic fumes. Its downward facing exhalation valve helps keep the lens fog-free so that the user can work without getting tired. When dealing with mold, the upper cover mould on the respirator is especially important. Mold Name Upper cover mould of respirator Product Material ABS Mold Steel for cavity NAK80 Mold Steel For Core NAK80 Steel For Base S50C Mold Estimated Size 230X200X231mm Mold Weight 60kg Press Machine Size 100T MOQ 1 Set Trade Terms FOB Payment Terms 50% prepayment before design making, 50% payment after final sample is confirmed. 7) The quenching heating temperature and time should be strictly controlled to prevent overheating and overburning of the mold.8) After the mold is quenched, it should be tempered in time, and the holding time should be sufficient. The high-alloy complex mold should be tempered 2-3 times.9) Select the correct grinding process and suitable grinding wheel.10) Improve the mold EDM process and perform stress relief tempering.

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  • 2022.07.01

    Mold heat treatment precautions

    1) Strictly control the inherent quality of mold raw materials2) Improve the forging and spheroidizing annealing process, eliminate the network, ribbon and chain carbides, and improve the uniformity of the spheroidized structure.3) After machining or cold plastic deformation, the mold should be subjected to stress relief annealing (>600℃) before heating and quenching.4) For molds with complex shapes, asbestos should be used to block threaded holes, dangerous sections and thin walls should be wrapped, and graded quenching or isothermal quenching should be used.5) Annealing or high temperature tempering is required when repairing or refurbishing the mold.6) The mold should be preheated during quenching and heating, and pre-cooling measures should be taken during cooling, and an appropriate quenching medium should be selected.7) The quenching heating temperature and time should be strictly controlled to prevent overheating and overburning of the mold.8) After the mold is quenched, it should be tempered in time, and the holding time should be sufficient. The high-alloy complex mold should be tempered 2-3 times.9) Select the correct grinding process and suitable grinding wheel.10) Improve the mold EDM process and perform stress relief tempering.Suzhou Wellhong Electric Co., Ltd. is a professional manufacturer of precision molds , injection molding, assembling and silk-printing. Some moulds are exported to Japan, Europe and the United States. We have the right to import and export the goods. mold company can develop and manufacture the moulds according to the needs of our customers. We pay attention to quality control, new project development, personnel training, team spirit. In recent years, we have established long-term business relationships with many well-known enterprises at home and abroad.

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  • 2022.06.23

    Causes of quenching cracks in mold heat treatment

    There are a lot of equipment in the heat treatment plant. The furnaces probably include box furnaces, pit furnaces, and box furnaces. Many heat treatments can be processed here, such as the heating process of annealing, normalizing and quenching, and tempering. These common heat treatment.Causes:1) There is serious segregation of network carbide in the mold material.2) There is mechanical processing or cold plastic deformation stress in the mold.3) Improper heat treatment operation of the mold (too fast heating or cooling, improper selection of quenching cooling medium, too low cooling temperature, too long cooling time, etc.).4) The mold has complex shape, uneven thickness, sharp corners and threaded holes, etc., which makes the thermal stress and tissue stress too large.5) The mold quenching heating temperature is too high to cause overheating or overburning.6) After the mold is quenched, the tempering is not timely or the tempering holding time is insufficient.7) When the mold is repaired and quenched, it is reheated and quenched without intermediate annealing.8) If the mold is heat treated, the grinding process is improper.9) During the EDM process after heat treatment of the mold, there are high tensile stress and microcracks in the hardened layer.Suzhou Wellhong Electric Co., Ltd. is a professional manufacturer of precision molds , injection molding, assembling and silk-printing. Some moulds are exported to Japan, Europe and the United States. We have the right to import and export the goods. We can develop and manufacture the moulds according to the needs of our customers. mould company pay attention to quality control, new project development, personnel training, team spirit. In recent years, we have established long-term business relationships with many well-known enterprises at home and abroad.

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  • 2022.06.16

    Stamping process: what about die damage and card die

    Stamping is one of the most useful processes for forming large quantities of parts. Die failure is a relatively simple problem in stamping production, which often causes production stoppage and affects the product production cycle. Therefore, it is necessary to find the cause of the mold failure as soon as possible and repair it reasonably.1. Mold damageMold damage refers to mold cracking, breaking, opening, etc. To solve the problem of mold damage, it is necessary to find the reasons from the design of the mold, the manufacturing process and the use of the mold. If the conditions such as foreign matter entering the mold, stacking of parts, and waste obstruction are not dealt with in time, and the processing is continued, it is easy to damage the blanking plate, punch, lower template and guide post of the mold.If the spring force is too small or the height of the sleeve is not equal, the spring will be cracked, the blanking plate will be skewed, and the stack will be punched and the parts will be damaged. If the quenching temperature of the mold is too high, the quenching method and time are not fair, as well as the number and temperature of tempering, and improper selection of elbows, the mold will be damaged after entering the stamping production. Improper fixing of the punch or insufficient strength of the screw will cause the punch to fall or break. The working height adjustment is too low, and the guide post is not smooth enough. Generally, the heat treatment process of the mold material has a great influence on it. If the size or depth of the blanking hole is not planned, it is easy to block the slot hole and cause damage to the blanking plate. When the mold is used, the position and direction of the parts are incorrectly installed or the bolts are not fastened properly. 2. Card moldThe main reasons for the die are as follows: the die guide is incorrect and skewed. Otherwise, it will expand the fault, resulting in damage to the mold. Forming mold deformation, for example, the hardness and thickness of the mold base and the template are too small, and they are easily deformed by external force; the mold orientation device is not accurate, and the positioning error of the upper and lower molds is out of tolerance. At this time, the strength of the punch should be advanced to enhance the guidance and maintenance of the stripper.Or the accuracy of the press is too poor, causing the mold to interfere; the strength of the punch is not good, and the size of the punch is too close, which makes the lateral force of the mold unbalanced. During the stamping process, once the mold clamping is insensitive or even stuck, it is necessary to stop production immediately to find out the cause of the stuck mold and eliminate the fault.3. RepairThe cost of die produced by stamping is high. The general die cost accounts for 1/5-1/4 of the total cost of the part. The one-time correction cost exceeds 70% of the original cost of the die, or the die life is approaching. When the mold repair technology is too complicated, the mold repair cost is too high, and the difficulty is high, the repair cycle will be too long, which will seriously affect the normal production of stamping. Generally speaking.After the mold is damaged, there is also a selection problem of repair and scrap. But. Therefore, repairing the mold in time to avoid damage to the mold can reduce the cost of the mold for stamping production. When the ties of the mold are severely damaged, sometimes the convex and concave molds are damaged together. This is because, in addition to the difficulty and high cost of mold making. Unnatural wear failure of stamping dies, such as damage to non-tie parts.Under normal conditions, the main failure mode of stamping die is excessive wear. Re-mould production and delivery. Until the burr of the punched parts is overrun, the size and shape of the parts are accurate.Suzhou Wellhong Electric Co., Ltd.is a professional manufacturer specialized in precision molds, injection molding, assembling and silk-printing. Chinese plastic mould plant Manufacturers and Plastic Mold Factory. Some moulds are exported to Japan, Europe and the United States. We have our own goods and factories so we can develop and produce the moulds according to the needs of our customers.

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  • 2022.06.10

    What are the processes of stamping dies for auto parts

    Auto parts stamping dies generally have the following processes:1. Drawing and forming2. Trimming and punching (side trimming and side punching)3. Flanging shaping (rollover)Draw forming:: is a stamping process method that turns a metal flat blank cut into a certain shape into parts of various shapes under the action of tensile stress.Drawing die design points:1. Arrangement of pressure regulating pads Arrangement of pressure regulating padsThe adjustment pads are arranged close to the pressing surface, and each adjustment pad is arranged close to the pressing surface, one every 300~400;Adjust the corresponding position of the pad, and set the pier block on the lower die; the corresponding position of the adjustment pad, pier block, and ejector rod should have vertical ribs.2. A material locator should be set on the blank holder to ensure the stable placement of the sheets. A material locator should be set on the blank holder to ensure the stable placement of the sheets.3. The guide plate at the end of the stamping die should be provided with anti-reverse. The form is that the left side of the stamping die guide should be set to prevent the reverse. The form is that the left side of the die is larger than the right guide position. The unilateral size is 10mm. 10mm.; a peep hole should be set at the guide plate. ; A peep hole should be provided at the guide plate.4. A safety screw should be provided, and the length of the screw should ensure that the blank holder is at the top dead center.There are 20 mm 20 mm gaps. gap.5. There should be a safety protection plate between the blank holder and the lower formwork, and the height of the guard should beMake sure that the blanking ring has a covering height of 30-30 mm when the blanking ring is at the top dead center. Cover height in mm.6. Set the transport connection plate between the upper and lower molds. A transport connection plate is set between the upper and lower molds.7. Mandrel arrangement requirements: evenly distributed around the parting line, so that the blank holder ring is subject to the mandrel layout requirements: evenly distributed around the parting line, so that the blank holder ring is subjected to stable force.Suzhou Wellhong Electric Co., Ltd. is a professional manufacturer of precision molds , Medical equipment Mould , assembling and silk-printing. Some moulds are exported to Japan, Europe and the United States. We have the right to import and export the goods. We can develop and manufacture the moulds according to the needs of our customers. We pay attention to quality control, new project development, personnel training, team spirit. In recent years, we have established long-term business relationships with many well-known enterprises at home and abroad.

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  • 2022.06.02

    Maintenance and maintenance of molds

    1: After the mold is used for a long time, the cutting edge must be ground. After grinding, the cutting edge surface must be demagnetized, and it must not be magnetic, otherwise it is easy to block the material. Mold users should record in detail, count their use, care (lubrication, cleaning, rust prevention) and damage, so as to find out which parts and components are damaged and the degree of wear, so as to provide information for finding and solving problems. As well as the molding process parameters of the mold and the materials used in the product, in order to shorten the test time of the mold and improve the production efficiency. The various properties of the mold should be tested under the normal operation of the injection molding machine and the mold, and the dimensions of the molded plastic parts should be measured. Through this information, the existing state of the mold can be determined, and the cavity, core, cooling system and parts can be found. According to the information provided by the plastic parts, the damage status of the mold and the maintenance measures can be judged.2: Springs and other elastic parts are easily damaged during use, and usually break and deform. The method to take is to replace. During the replacement process, you must pay attention to the specifications and models of the springs. The specifications and models of the springs are confirmed by the three items of color, outer diameter and length, and can only be replaced if the three items are the same. The quality of the imported spring is better. 3: During the use of the mold, the punch is prone to breakage, bending and gnawing, and the punch sleeve is generally gnawed. Damaged punches and sleeves are generally replaced with parts of the same specification. The parameters of the punch mainly include working part size, installation part size, length size, etc.4: Fasten the parts, check whether the fastening parts are loose or damaged, and the method is to find parts of the same specification for replacement.5: Pressing parts such as pressing plate, excellent glue, etc., unloading parts such as stripping plate, pneumatic top material, etc. During maintenance, check the relationship between the parts and whether there is any damage, repair the damaged parts, check whether there is air leakage with the pneumatic jacking material, and take measures for the specific situation. If the trachea is damaged, replace it.Suzhou Wellhong Electric Co., Ltd. is a professional manufacturer of precision molds , injection molding, assembling and silk-printing. Some Auto parts Mould are exported to Japan, Europe and the United States. We have the right to import and export the goods. We can develop and manufacture the moulds according to the needs of our customers. We pay attention to quality control, new project development, personnel training, team spirit. In recent years, we have established long-term business relationships with many well-known enterprises at home and abroad.

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