Mold quality is not a simple topic, it includes the following aspects:

⑴ Product quality: stability and conformity of product dimensions, smoothness of product surface, utilization rate of product materials, etc;

⑵ Service life: The number of working cycles that the mold can complete or the quantity of parts produced, while ensuring the quality of the product;

⑶ Use and maintenance of molds: whether they are the most convenient to use, easy to demold, and have the shortest possible production assistance time;

⑷ Maintenance costs, maintenance cycles, etc.

The basic ways to improve the quality of molds:

Firstly, the design of the component should be reasonable, and the best structural scheme should be selected as much as possible. The designer of the component should consider the technical requirements of the component and its structure must comply with the processability and feasibility of mold manufacturing.

The design of molds is the most important step in improving mold quality, and many factors need to be considered, including the selection of mold materials, the usability and safety of mold structures, the machinability of mold parts, and the convenience of mold maintenance. These should be considered as comprehensively as possible at the beginning of the design.

① The selection of mold materials should not only meet the customer's requirements for product quality, but also consider the cost of materials and their strength within the set period. Of course, the selection of materials should also be based on factors such as the type of mold, working mode, processing speed, and main failure modes. For example, the main failure mode of punching dies is blade wear, so it is necessary to choose materials with high surface hardness and good wear resistance; Stamping dies mainly bear periodic loads, which can easily cause surface fatigue cracks and surface peeling. Therefore, materials with good surface toughness should be selected; The deep drawing die should be made of materials with a particularly low coefficient of friction; Due to the cyclic thermal stress, die-casting molds should be made of materials with strong thermal fatigue properties; For injection molds, when the plastic parts are made of materials such as ABS, PP, PC, etc., pre hardened quenched and tempered steel can be selected as the mold material. When the plastic parts are made of high smoothness and transparent materials, corrosion-resistant stainless steel can be selected. When the product batch is large, quenched and tempered steel can be selected. In addition, it is necessary to consider using mold materials with lower affinity to the parts to prevent mold sticking from exacerbating the wear of mold parts and affecting the quality of the mold.