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We can do any shape and structure plastic housing, shell or any other plastic including acrylic products, only if you can provide CAD or Pro E file or just your idea, then we can help design and manufacture, here below is our profession.
1).Precision Plastic Injection Mold Design: We design and manufacture custom molds for plastic injection using AutoCAD software, including SolidWorks, UG , and pro/E. We focus on close tolerance machning using advanced CNC milling techniques,EDM equipment, and the exceptional skills and creativity of our team of employees.2). Plastic Injection Mold Manufactring facility: Our 5000 square meters facility is located in the Dongguan Guangdong. We maintain and continually upgrade our state-of-the-art equipment. 3).Our customers: We serve customers across the United States and globally. Industries that we serve include optical, office and imaging equipment, medical devices, aeronautical, automotive, packaging, sporting goods, Department of Defense, and consumer products. 4).TS16949 and ISO 9001:2008 Quality Management System. View our ISO 9001:2008 and TS16949 certificate. 5).capable We have 20 the mould group and 22 designer,we can guarantee that your mould delivery and quality
Our Service: 1. We can design and manufacturing plastic products according to your requirement 2. Size: Any size as per your requirements 3. Color: Any colors available 4. We own CNC processing centers, CNC spark working machinery and various advanced mold tooling equipment. We also have established a CAD / CAM / CAE mold design and development center 5. Our range covers from eletrical accessory, auto parts, household appliance, medical appliance, car accessory, security parts, toy parts ect. 6. Our quality, price, after sale services are really competitive 7. The product in the picture are our customers' OEM products, it's only for reference Our advantage and achievements: 1. SGS certification, strictly control the procedures accordingly 2. with software such as CAD, PRO-E, Solidworks, highly qualified engineering team 3. We have our own factory equiped with high precision machinery, such as CNC-EDM 4. Our maximum productivity: 500-1000sets/year 5. We can offer mould as big as 2000*2000*1800mm 6. We can make up part`s unit weight from small 3grams to 15kg big part.
About Injection Molding
Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. A wide variety of products are manufactured using injection molding, which vary greatly in their size, complexity, and application. The injection molding process requires the use of an injection molding machine, raw plastic material, and a mold. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part. The steps in this process are described in greater detail in the next section.
Injection molding is used to produce thin-walled plastic parts for a wide variety of applications, one of the most common being plastic housings. Plastic housing is a thin-walled enclosure, often requiring many ribs and bosses on the interior. These housings are used in a variety of products including household appliances, consumer electronics, power tools, and as automotive dashboards. Other common thin-walled products include different types of open containers, such as buckets. Injection molding is also used to produce several everyday items such as toothbrushes or small plastic toys. Many medical devices, including valves and syringes, are manufactured using injection molding as well.
Process Cycle The process cycle for injection molding is very short, typically between 2 seconds and 2 minutes, and consists of the following four stages: 1, Clamping - Prior to the injection of the material into the mold, the two halves of the mold must first be securely closed by the clamping unit. Each half of the mold is attached to the injection molding machine and one half is allowed to slide. The hydraulically powered clamping unit pushes the mold halves together and exerts sufficient force to keep the mold securely closed while the material is injected. The time required to close and clamp the mold is dependent upon the machine - larger machines (those with greater clamping forces) will require more time. This time can be estimated from the dry cycle time of the machine.
2, Injection - The raw plastic material, usually in the form of pellets, is fed into the injection molding machine, and advanced towards the mold by the injection unit. During this process, the material is melted by heat and pressure. The molten plastic is then injected into the mold very quickly and the buildup of pressure packs and holds the material. The amount of material that is injected is referred to as the shot. The injection time is difficult to calculate accurately due to the complex and changing flow of the molten plastic into the mold. However, the injection time can be estimated by the shot volume, injection pressure, and injection power.
3, Cooling - The molten plastic that is inside the mold begins to cool as soon as it makes contact with the interior mold surfaces. As the plastic cools, it will solidify into the shape of the desired part. However, during cooling some shrinkage of the part may occur. The packing of material in the injection stage allows additional material to flow into the mold and reduce the amount of visible shrinkage. The mold can not be opened until the required cooling time has elapsed. The cooling time can be estimated from several thermodynamic properties of the plastic and the maximum wall thickness of the part.
4, Ejection - After sufficient time has passed, the cooled part may be ejected from the mold by the ejection system, which is attached to the rear half of the mold. When the mold is opened, a mechanism is used to push the part out of the mold. Force must be applied to eject the part because during cooling the part shrinks and adheres to the mold. In order to facilitate the ejection of the part, a mold release agent can be sprayed onto the surfaces of the mold cavity prior to injection of the material. The time that is required to open the mold and eject the part can be estimated from the dry cycle time of the machine and should include time for the part to fall free of the mold. Once the part is ejected, the mold can be clamped shut for the next shot to be injected.
After the injection molding cycle, some post processing is typically required. During cooling, the material in the channels of the mold will solidify attached to the part. This excess material, along with any flash that has occurred, must be trimmed from the part, typically by using cutters. For some types of material, such as thermoplastics, the scrap material that results from this trimming can be recycled by being placed into a plastic grinder, also called regrind machines or granulators, which regrinds the scrap material into pellets. Due to some degradation of the material properties, the regrind must be mixed with raw material in the proper regrind ratio to be reused in the injection molding process.
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