• Why does the domestic mold industry have been fighting the price war? Mar 15, 2019
    Why the domestic mold industry has been playing the price war?  At present, there are many china tool manufacturer engaged in mold production at home, but the scale is relatively small, the basic model is small workshop, most is  cheap mould, and the content of science and technology is very low.  Small mold enterprises produce products are basically imitation, resulting in more and...
  • Surface Lettering Method for Plastic Mold Mar 21, 2019
    We often see patterns and numbers on plastic parts, and these numbers varies for each part. How to engrave these numbers and patterns on these molds? there are mainly three common methods. 1) The first one is directly engraved on the mold by an engraving machine. This is usually used when the font or pattern is large. Usually this type of font usually has a knife mark on the surface and needs to b...
  • What is Over-Mold? Mar 21, 2019
    When We say "Over-Mold" means the secondary injection molding of the product.  The main product consists of two parts, one refers to the plastic inside, and the other refers to the soft part outside.  At the time of mold manufacturing, a plastic mold, that is, a main hard mold, is first manufactured.  After he cools naturally, he puts it in another pair of molds and re-inserts the m...
  • Advantages of Painting on the Surface of Plastic Mold Products Mar 21, 2019
    A customer asked me if the surface of the plastic product needs to be painted, this depends on the customer's requirements. When the surface of the plastic product is painted, the brightness of the product can be guaranteed. Because the plastic product itself is very difficult to reflect.  Therefore, the plastic parts look darker, and if the skin texture on the surface of the plastic parts is...
  • Undercut in Plastic Mold Mar 29, 2019
    In some plastic products, there are undercuts. If it is a small undercut, and the requirements of shape and size accuracy are low, or the plastic material has sufficient plastic deformation and toughness, the parts can be ejected/ demoulded by force.  According to the different structures and requirements of plastic parts, the slider and lifter mechanisms is adopted to solve the problems in m...
  • The Effect of Plastic Mold Prototype Part Mar 29, 2019
    "Prototype Part" is often heard in the mold industry. It means one or a set of products processed by machine.It has two types, one is ordinary plastic part, the other is 3D printing. Ordinary plastic part refers to the processing of the plastic block directly on the machine. This kind of product is usually not large. If the part is large, the processed plastic parts need to be glued together with ...
  • Importance of adjusting the plastic injection mold temperature Mar 29, 2019
    In the injection mold industry, the design of the structure for plastic products is very important, but if the temperature of the injection mold is not reasonable, no quality products will be produced, especially in the production of POM (polyoxymethylene), PA (nylon). When do PBT and PET (polyester) material, the mold  temperature has a great influence on the plastic part. After reasonable t...
  • Reasons for Weld Line on Plastic Part Apr 04, 2019
    When we get the plastic parts during mold test, we will see some weld lines on them. What's the main reasons for the weld lines? 1. The surface temperature of the injection mold is too cold, and the surface temperature of the mold should be appropriately increased or the local temperature at the welded joint should be changed. 2. The runner is too small, too narrow or too shallow. The diameter of ...
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A total of 28 pages

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