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Foundry industry must see! Die casting mold structure unique secret!

2023-09-11

Foundry industry must see! Die casting mold structure unique secret!

Casting is a commonly used process in modern production, which can produce large quantities of metal, plastic, glass products, etc. In casting, the importance of molds is self-evident, as they directly affect the quality and efficiency of products. Among them, die-casting molds are the most commonly used and complex molds in casting. This article will introduce some unique structural secrets of die-casting molds.

1、 Structure of die-casting molds

The die-casting mold is composed of a mold base, a movable template, a fixed template, a locking mechanism, a nozzle, a supplementary cooling water pipe, and a parameter adjustment mechanism. The mold base is the basic part of the mold structure, and the movable template and the fixed template respectively bear the functions of opening and closing the mold up and down, as well as the casting extraction. The locking mechanism ensures that the movable template and the fixed template maintain a good state, the nozzle injects molten metal or plastic into the mold cavity, and the supplementary cooling water pipe can assist in rapid material cooling. The parameter adjustment mechanism adjusts the various parameters of the mold to achieve the best casting effect. The specific structure of different die-casting molds may also vary, but the above components are indispensable.

2、 Precautions for die-casting molds

Some die-casting molds may experience cracking, deformation, or scratches during use. To address these issues, we need to pay attention to the following points. Firstly, it is necessary to pay attention to the selection of mold materials, which must meet the requirements of hardness, toughness, thermal expansion coefficient, etc. required for the mold; Secondly, when designing the mold, the issue of exhaust in the mold cavity should be fully considered to avoid affecting the quality of the casting; Third, the maintenance of the mold is very important. It is necessary to carry out regular maintenance, clean the cooling water pipe and check whether there are damages and other problems to ensure the normal service life of the mold; Finally, when manufacturing die-casting molds, it is necessary to pay attention to the technical process, especially the rationality of each process step during processing, to avoid unnecessary defects.

3、 Common repair methods for die-casting molds

During the use of die-casting molds, some problems inevitably arise, such as mold protrusions, surface damage, fractures or deformations, which can have a direct impact on casting. We have some commonly used repair methods to address these issues, such as surface repair, convex hull repair, welding repair, etc. Surface repair is mainly achieved by grinding and polishing the mold area, while convex repair refers to grinding or polishing the convex part of the mold to reduce the deformation of the die-casting mold cavity caused by protrusions; Welding repair is usually carried out on a broken mold, but it is important to note that the mold after welding needs to be reheated and adjusted, and sufficient insulation should be provided.

In summary, the structure of die-casting molds is very complex, and their manufacturing, use, maintenance, and repair require advanced technology and experience. In daily production, we should fully recognize its importance and take corresponding measures to ensure its normal operation. Only in this way can we ensure the competitive advantage of the casting industry in the market and further promote the development of the industry.

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