Mould manufacturing process is a complex process, from the design, processing, assembly, debugging and other steps, finally can really put into use, in the whole life cycle, factors affecting mold quality are mainly in the following ten aspects:
1 die steel
Several commonly used steel
Steel is the decisive factor in the quality of the mold, the choice of reasonable steel is the most important. The criterion for ing steel is:
Injection molding material requirements - different plastic to choose different steel, such as the requirements of high polishing, corrosion resistance requirements and so on;
The price of steel can be used as good, not the more expensive the better; considering the cost of the mould, die steel and die life to choose the corresponding materials, to avoid unnecessary waste of life in general; P20 300 thousand; H13/2344 2738, 500 thousand no problem, usually in the 80-100 million, can choose according to;
Heat treatment. Mold surface treatment is also very important. Nitride - can enhance the surface hardness of steel and prolong die life of die steel; electroplating, effective modification, the need for some high brightness and plastic corrosion resistance can be enhanced and improved the performance of steel by electroplating
2 Structure Design
Pipe fitting structure design
Die structure mature not only take into account the product material properties - shrinkage, molding temperature, tensile elastic deformation coefficient, but also considering the cooling water, the mold opening and closing speed etc.. Reasonable mold structure can effectively prolong the life of the mold and ensure the smooth production of the mold. Improve efficiency, reduce costs.
3 mold processing
Sharp tools make good work。 Mold process is particularly important, reasonable process can speed up the production cycle, shorten the processing time, save costs. And more importantly, accurate and reasonable processing can ensure the stability of the mold in the production process and prolong life. Some processing error will result in die welding welding, no matter how good, is a loss to die; and the processing is not good and may affect the mold operation, reduce the service life of the mould, causes the mold in the production process of crack and break.
4 standard parts
Decide bucket capacity is a minimum of wood. We all understand this truth, but in doing so often do not pay attention to. Mold is the same, although the standard parts are not directly involved in forming, but it controls the entire mold operation. Good standard parts should be able to wear, hard, high precision, not deformation. Different brands of standard big difference, so do not blindly die cut, kill, you will die from Benz straight down to the public.
The 5 kind (flying mode)
Touch is on die fitter experience, live is simple with the technical content of work. Complex mold is mainly to see this effort. Plate mold the simplest, fractal surface as long as there is no fly edge of the basic ok. Like auto parts die very much trouble, not only the fractal surface is more irregular, and often include a number of blocks, the top block. At the same time by colliding can other problems of die are improved and perfected. So it is a comprehensive work.
6 polishing / skin texture
The polishing of the mold is the last part of the manufacture of the mould. Polishing is directly reflected in the plastic parts, so this is the face of the work. Polishing can also play a role in the mold action to help and supplement, especially for the release of very meaningful. Often some mold not smooth because of lighting is not in place, the resistance is too large, even white hat, difficulty of stripping, roof crack.
7 mold assembly
As the mold assembly machine assembly, each component of each screw can not be wrong, otherwise the consequences will be very serious, ranging from lead to product defects, affecting the production, heavy damage is completely die, causing scrap. So the assembly must be very careful to live. In the assembly process especially to mold cleaning work, especially water, screw holes must be blown clean inside the iron, or customers very angry.
8 hot runner or cold runner

This is the least impact on the quality of the mold, because hot runner is generally the customer specified brand, especially some large customers. Foreign well-known brands in terms of quality or after-sales service to do are very in place, so there is no problem in general quality. Only some of the domestic hot runner is a great difference between the quality of the road. Individual small businesses in order to save costs, to fight for the price advantage, with some of the heating and conductive parts do not fly, it is easy to issue. The main problem of the cold runner is how to ensure the balance of injection, gate size, injection pressure, and so on.

9 cooling water
People who have had the mold experience know how important it is to cool the mold. Due to the growth of prices and human wages, in the mass production of products, no time to reduce the injection cycle of a second brought about by the profits are unimaginable. However, to speed up the production cycle will be the rise of mold temperature, if not effectively controlled, then it will make the mold due to too much heat can not be formed, and even lead to die deformation failure. So water good design is particularly important, including water distribution density, diameter, mutual link and so on.
10 mold maintenance
Mold maintenance is mainly in the production process of maintenance and maintenance. Mold is like a car, if not for a long time without maintenance, then it may lead to die scrapped. Therefore, each mold must be carried out after the use of a comprehensive maintenance, in particular, the formation of part of the rust, the main parts of the action of rust. Because the mold due to the production process to meet the water, may be in the process of installing or removing to sleep on the mold, so we must ensure that the mold dry, and then brush a layer of oil protection.