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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...
- Silicone mold
- vacuum casting
- PU
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...
- plastic injection molding
- plastic mold
- plastic surface
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) ...
- Hardened mould
- mould forging process
- large mold
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...
- movable mold
- plastic mold parting
- mechanical mold
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...
- Die Polishing
- Mold Material
- Polishing Process
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 ...
- gas assisted injection mold
- gas injection
- plastic gas assisted mold
Mold Introduction Dec 14, 2018
Mold Definition and Classification Mold is called “Mother of Industry”. It is a processing tool that processes raw materials and gives raw materials a complete configuration and precise size. It is mainly used for efficient and high-volume production of related parts in industrial products. The development of the mold industry has always been valued by the state. According to the National Developm...
- Precision molds
- stamping mold
- die-casting
The Toughness of Mold Steel Dec 20, 2018
During the working process, the mold is subjected to impact load. In order to reduce the damage of breakage or chipping during working, the mold steel is required to have certain toughness. There are many factors to influence the toughness of mold steel, like: the chemical composition, grain size, purity, carbide, inclusions of the mold steel, the heat treatment system; also the metallographic str...
- Hot work
- Mold material
- Mold steel

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