• Ten principles of mold design for P/L (1) Nov 30, 2018
    1. Consideration of clamping force The lateral clamping force of the mold is relatively small, so for a large product with a large projection area, the direction of the large projection area should be placed in the direction of the mold opening and closing. 2. Meet the product release requirements The parting surface is also for the product to be able to take out the mold smoothly. Therefore, the ...
  • How to improve the quality of molds? Nov 30, 2018
    There are 3 basic ways to improve the quality of molds. Firstly, mold design is the most important step to improve the mold quality. Many factors need to be taken into account, including the selection of steel materials, the usability and safety of mold structure, the machinability of  parts and the convenience of mold maintenance. All above factors should be considered at the very beginning ...
  • Vacuum casting Nov 30, 2018
    Using silicone molds and polyurethane (PU) resins, it is possible to get very close to production-quality parts with vacuum casting. The tooling is generally made from silicone, which is very cheap compared with a steel injection mold tool. A range of materials are available and it is possible to do over molded parts, as well. Vacuum casting is only really competitive for smaller production runs a...
  • plastic injection molding, plastic surface, plastic mold. Nov 30, 2018
    The parting surface is the joint surface of the mold for taking out the product in the process of injection molding. An important factor that decides the structural form of the mold, it is related to the overall structure of the mold, the design of the pouring system, the demoulding of the plastic parts and the manufacturing process of the mold. Selection principle of parting surface: A. The maxim...
  • What Causes Insufficient Steel Hardness? Nov 30, 2018
    The hardness of mold heat treatment is a very important mechanical property index,it is a very serious defect when the hardness is not qualified . Insufficient or uneven hardness of the mold after heat treatment will reduce the wear resistance and fatigue strength of the mold and other properties,even resulting in early failure of the mold, seriously shorten the mold life. The Reasons Causing: 1) ...
  • Ten principles of mold design for P/L (2) Dec 11, 2018
    Let’s go on from last article about discussing the  principles of mold design for P/L. 6. Good to demoulding The mold release mechanism of the general mold is in the movable mold, so the product should be left in the movable mold as much as possible when selecting the parting surface. Therefore, for some places where it is possible to stick to the fixed mold, we often add a fixed mold assiste...
  • Factors affecting the quality of die polishing Dec 11, 2018
    Since mechanical polishing is mainly completed manually, polishing technology is still the main reason affecting the quality of polishing.In addition, it is also related to mold material, surface condition before polishing, heat treatment process and so on. High quality steel is the prerequisite to obtain good polishing quality, if the surface hardness of steel is uneven or there are differences i...
  • Basic Design Principles for Gas Assisted Injection Mold(1) Dec 14, 2018
    Today we are going to discuss basic design principles for gas assisted injection mold 1. When designing, first consider which wall thickness needs to be hollowed out, which surface shrinkage needs to be eliminated, and then consider how to connect these parts into the airway. 2. Large structural parts: full thinning, partial thickening for the airway. 3. The airway should be evenly distributed to ...
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A total of 29 pages

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