zdcpu | Zhongde Contract Manufacturer

  The structural design of plastic product development should follow the following plastic part design guidelines   a. The structure design should be reasonable: the assembly gap is reasonable, and all plug-in structures should be reserved for gaps; ensure sufficient strength and rigidity (safety test), and properly design a reasonable safety factor.   b. The structural design of plastic parts should comprehensively consider the manufacturability of the mold, and simplify the manufacturing of the mold as much as possible.   c. The plasticity of the structure of plastic parts should be considered, that is, the injection molding production efficiency of the parts should be high, and the rejection rate of injection molding should be minimized.   d.  Consider facilitating assembly production (especially not conflicting with assembly).   e. The structure of plastic parts adopts standard and mature structure as much as possible, so-called modular design. ...

  Compression molding advantages and disadvantages  is the operation of first putting powdered, granular, or fibrous plastic into the mold cavity at the molding temperature, and then closing the mold to press to shape and solidify it. Advantages and disadvantages of compression moulding  can be used for thermosetting plastics, thermoplastics, and rubber materials.   Advantages of compression molding:   (1) In the compression molding process, the loss of raw materials is small and will not cause too much loss (usually 2% to 5% of product quality).   (2) The internal stress of the product is very low, and the warpage deformation is also small, and the mechanical properties are relatively stable.   (3) The wear of the mold cavity is small, and the maintenance cost of the mold is low.   (4) The cost of molding equipment is low, and its mold structure is simpler, and its manufacturing cost is usually lower than that of injection molds or transfer moldi...

  Different surface finishing engineering  can be applied to different materials. Find below a quick cheat sheet of surface finish and material compatibility.   Name Material Compatibility Smoothing All plastics and metals Bead blasting All metals Powder coating All metals Anodizing clear (type II) Aluminum alloys Anodizing color (type II) Aluminum alloys Anodizing hard coat (type III) Aluminum alloys Electropolishing All metals Black oxide Stainless steel and copper alloys Chromate conversion coating Aluminum and Copper alloys Brushing All metals     Our Surface Finishes   Here is a list of optional surface finishes. For custom surface finishes such as electroplating or polishing, please contact sales@zdcpu.com.   As Machined For as machined all sharp edges are removed and parts are deburred. Tool marks are visible.   Smoothing A finishing CNC machining operation can be applied to the part to reduce its surface roughness. Machine marks are less e...

  Rubber injection China  molding can be used to produce both solid rubber parts and rubber bonding metal parts, it is an ideal process for mid-to-high volume rubber production. This is a process that fully automated and becomes one of the most efficient ways to mold rubber in most cases.   At Zhongde, we are determined to provide customers with superior products that meet high standards. As a longtime supplier for top-quality custom rubber parts, we are well-equipped to undertake a wide range of rubber materials, uphold precision tolerances within ±0.5mm.   Guideline of Rubber Injection Molding Size of Rubber Injection Molding   Below table shows the size of Rubber Injection Molding parts we usually make. If you need a larger size, we can also help you achieve it.   Size Metric Inch Length 2500 98.4 Width 2000 78.7 Height 1500 59   Available Material of Rubber Injection Molding   In addition to the general materials listed below,  Zhongde ca...

  Plastic injection molding is the most common manufacturing process for the fabrication of large quantities of plastic parts. As an ideal method to producing high volumes plastic parts in the same shape, plastic injection molding can be used to create various of plastic parts, which vary greatly in size, complexity and application. Almost every plastic item around you was manufactured by injection molding.   The plastic injection molding at Zhongde is a standard process involving a stainless steel mold, it can be divided into six stages: mold clamping, injection molding, pressure holding, cooling, mold opening, and product removal. At a certain temperature, the completely melted plastic material is stirred by a screw, injected into the mold cavity with high pressure, then cooled and solidified into the final plastic molded parts.   Guideline of China custom plastic parts   Injection Molding Service Size of Precision Custom OEM Plastic Injection Moulding   Below...