1.Before the mold design, the designer should fully analyze and study whether the plastic products conform to the principle of injection molding processing, need to carefully negotiate with the designer of the product, has reached a consensus. Including the geometric shape of the product, dimensional accuracy and appearance requirements, necessary discussion, as far as possible to avoid unnecessary complexity in mold manufacturing.

2.A set of high-quality mold, not only need to have good processing equipment and skilled mold manufacturing workers, another very important factor is to have a good mold design, especially for complex mold, mold design quality accounts for more than 80% of the mold quality. An excellent mold design is: under the premise of meeting the requirements of guests, so that the processing cost is low, the processing difficulty is small, the processing time is short.To do this, not only to fully digest the requirements of the guests, but also to have an understanding of the injection molding machine, mold structure, processing technology and mold factory's own processing capacity. 

3.Determine the mold material and choose standard parts.In the selection of die materials, in addition to considering the accuracy and quality of the product, but also combined with the actual ability of the processing and heat treatment of the die factory to give the correct choice. In addition, in order to shorten the manufacturing cycle, existing standard parts are used as much as possible.

4.Parts processing and mold assembly.In addition to giving the best structure and reasonable tolerance in the design of the precision of the mold, parts processing and mold assembly is very important. Therefore, the selection of machining precision and machining method occupies an absolutely dominant position in die manufacturing.

5.A set of mold from the beginning of design to assembly, only to complete the entire manufacturing process of 70%~80%. For the error caused by the inconsistency between the predetermined shrinkage and the actual shrinkage, whether the demoulding is smooth or not, how the cooling effect is, especially the influence of the size, position and shape of the gate on the accuracy and appearance of the product, it must be tested by the mold test. Therefore, mold testing is an indispensable step to check whether the mold is qualified and choose the best forming process.

5.A set of mold from the beginning of design to assembly, only to complete the entire manufacturing process of 70%~80%. For the error caused by the inconsistency between the predetermined shrinkage and the actual shrinkage, whether the demoulding is smooth or not, how the cooling effect is, especially the influence of the size, position and shape of the gate on the accuracy and appearance of the product, it must be tested by the mold test. Therefore, mold testing is an indispensable step to check whether the mold is qualified and choose the best forming process.