Blog | Custom Injection Molding,Plastic Mold Maker

DRAFT ANGEL Dec 11, 2018
Draft Angle 1 、Proper decolleting Angle can avoid product scratching.The demolding slope of smooth surface should be more than 0.5 degree, fine grain (sand) surface is greater than 1 degree, rough grain surface is greater than 1.5 degree. 2 、Proper ejection Angle can avoid product jacking, such as stress mark, top deformation, broken. 3、 In order to ensure that the core of the mould is not out of ...
- draft angle
- wall thickness
- reduce material
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
Reverse Engineering in Mould Making Dec 11, 2018
Geometric modeling technology has been widely used in the development of plastic products. However, due to various reasons, the technical data that mould makers get from clients is not the CAD model, but the physical samples consisting of complex free curves and surfaces. If using the traditional method to design and manufacture product, the cycle time is long and the cost is high. It is unable to...
- Reverse Engineering
- Rapid prototyping
- Mould making
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
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
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
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
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 ...
- Mold design
- Hot runner mold
- Mold lifetime
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 ...
- mold design
- plastic mold structure
- P/L design,
The solution of bubble issue during injection molding process Nov 23, 2018
According to the causes of bubbles, the countermeasures are as follows: (1) When the wall thickness of the product is large, the cooling speed of its external surface is faster than that of the central plastic part. Therefore, as the cooling goes on, the resin at the central part shrinks and expands towards the surface, resulting in insufficient filling at the central part. This condition is calle...
- Plastic Mold
- Injection molding
- plastic parts

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