Currently, domesticDongguan Precision CastingThe mold industry is developing rapidly. There are no fewer than hundreds of aluminum alloy gravity casting mold manufacturing plants. With the development of the automobile manufacturing industry and the influx of foreign capital, mold manufacturing plants are increasing day by day in terms of scale and technical strength. With the popularization and application of CNC machining equipment, the processing level of the mold industry is not much different from that of foreign countries. Many mold factories also have more advanced testing equipment, but our management level, design philosophy, and business philosophy are still far behind foreign counterparts. , Mold materials and heat treatment strengthening methods are also far behind developed countries. The current situation for foundry mold production plants has practical experience, and engineering and technical personnel who understand both mold manufacturing and casting process are also lacking. Mold debugging and process verification are also a hurdle in the mold production process, because Successful molds and mature craftsmanship are what many foundries with weaker technical strength hope for.

The standardization of molds and the application of standard mold parts are the inevitable trend of the future development of the mold industry. This is especially true for aluminum alloy gravity casting, which started late. Only when mold standardization is implemented can the behavior of mold manufacturers be regulated, and it will be possible to prompt mold manufacturers to provide molds of high quality and low price that meet the standards. At the same time, the standardization of molds and the application of standard mold parts will enableDongguan Precision CastingIt is easier for the factory to monitor the quality of the mold, and it also makes the maintenance and maintenance of the mold more convenient. The use of standard mold parts and the scale effect of production will help change the current situation of multiple varieties, small batches, and low production efficiency in the mold industry, which will help reduce costs and increase productivity.

Precision die casting is a precision casting method in which molten alloy liquid is poured into a press chamber, the cavity of a steel mold is filled at high speed, and the alloy liquid is solidified under pressure to form a casting. Precision die casting has the following advantages:

1. Good product quality

Precision cast steelThe dimensional accuracy of castings is high, generally equivalent to 6~7, or even up to 4; the surface finish is good, generally equivalent to 5~8; the strength and hardness are higher, and the strength is generally 25~30% higher than that of sand casting, but The elongation rate is reduced by about 70%; the size is stable, and the interchangeability is good; it can die-cast thin-walled complex castings. For example, the current minimum wall thickness of zinc alloy die castings can reach 0.3 mm; aluminum alloy castings can reach 0.5 mm; the minimum casting aperture is 0.7 mm; and the minimum pitch is 0.75 mm.

2. High production efficiency

The machine productivity is high. For example, the domestic JⅢ3 horizontal cold-air die casting machine can die-cast 600-700 times in eight hours on average, and the small hot-chamber die-casting machine can die-cast 3,000-7000 times in eight hours on average. The die-casting mold has a long life and one pair of die-casting molds. The die-cast clock alloy has a life span of hundreds of thousands of times, even millions of times; it is easy to realize mechanization and automation.

3. Excellent economic effect

Due to the precise size of the die-casting parts, the surface is bright and clean. Generally, it is not used for mechanical processing and directly used, or the processing volume is small, so it not only improves the metal utilization rate, but also reduces a large number of processing equipment and man-hours; the price of castings is easy; combination die-casting can be used to use other metal or non-metal materials . It saves not only assembly man-hours but also metal.