Chair Mould manufacturers

Die-casting mold is one of the three major factors in die-casting production. The correct and reasonable die-casting mold is a prerequisite for the smooth production of die-cast parts, and plays an important role in ensuring the quality of castings. Due to the characteristics of the die-casting process, the correct selection of each process parameter is the decisive factor for obtaining high-quality castings, and the mold is the premise of being able to correctly select and adjust various process parameters. The mold design is essentially the prediction of various factors that may occur in the die-casting production. Comprehensive reflection.

As I said at the beginning, the filling time of the molten metal is extremely short, and the specific pressure and flow rate of the molten metal are very high. This is extremely difficult for the die-casting mold, and the impact of the alternating stress of the chilling heat. The effect has a great influence on the service life of the die-casting mold. The service life of die-casting molds usually refers to the number of die-casting modules (including die-casting production) that are carefully designed and manufactured under the conditions of normal use, combined with the natural damage that occurs under good maintenance, before being scrapped and scrapped.

The number of scraps in the project). If the mold design is reasonable, there are fewer problems encountered in actual production, and the pass rate of the castings is high. On the contrary, the die-casting mold design is unreasonable. For example, when the die-casting parts are designed, the wrapping plastic injection moulding force of the fixed-die is basically the same, and the casting system is mostly fixed in the mold, and it is produced on the die-casting machine where the punch cannot be fed after the injection, and the normal production cannot be performed. Die-cast parts are always stuck to the fixed mold. Although the finish of the mold cavity is very light, due to the deep cavity, there is still a phenomenon of sticking to the fixed mold.

Therefore, in the design of the mold, it is necessary to comprehensively analyze the structure of the casting, familiar with the operation process of the die-casting machine, to understand the possibility of adjustment of the die-casting machine and process parameters, to grasp the filling characteristics under different conditions, and to consider the method of processing the die-casting mold, After drilling and fixing the form, it is possible to design a mold that is realistic and meets the production requirements.