Die casting mold design and manufacturing, Huizhou Shuangcheng aluminum Alloy die casting Factory
Date：
2019-07-22
The company engaged in the mold industry for many years, the die casting mold. Plastic molds are particularly experienced. ?? Now it has its own mold processing equipment. Welcome to map to sample processing. We will provide you with quality service, your satisfaction is our purpose of service.
The company has been engaged in the mold industry for many years. Plastic models don't have experience.?? Now we have our own mold processing equipment. Welcome to the drawing and sample processing. We will provide you with quality service, and your satisfaction is our service tenet
The design and development of Huizhou zinc alloy die casting mold. Die casting is a precision casting method that uses high pressure to force metal melt into a metal mold with complex shape. With the development of modern science and technology, the technicians engaged in die casting mold must constantly improve their technology in order to correctly and reasonably complete the new mold products. The manufacturing of zinc alloy die-casting mainly focuses on three aspects: die-casting materials, die-casting machines, and molds, all of which are indispensable. The die-casting process is a process that organically and comprehensively applies these three elements to steadily and efficiently produce qualified castings, even high-quality castings, with good appearance, internal quality, and dimensions meeting the requirements of drawings or agreements. Now let's learn about the design and manufacture of Xiaolan zinc alloy die casting
As an important processing method, die casting is an indispensable part of mechanical products. In our daily life, we can see that die casting dies are widely used, such as: automobile industry, power station, metallurgy industry, mechanical equipment, railway, shipbuilding, weapons, etc; The production of zinc alloy die castings is not only characterized by high strength, high precision, high shape complexity and high productivity, but also by material saving, energy saving, consumption reduction and low cost. It is suitable for mass production and has great market demand and broad development prospects
It is very important to control the surface temperature of zinc alloy die casting to produce high-quality die castings. Uneven or inappropriate die casting mold temperature during production will also cause dimensional instability of castings, deformation of ejected castings, and defects such as thermal pressure, die sticking, surface depression, shrinkage cavity and hot bubble. When the die temperature difference is large, the variables in the production cycle, such as filling time, cooling time and spraying time, will be affected to varying degrees
Foaming causes of zinc alloy die castings:
1. Porosity: mainly caused by pores and shrinkage mechanism. The pores are usually round, while most shrinkage is irregular
2. Intergranular corrosion: harmful impurities in the composition of zinc alloy: lead, cadmium and tin will gather at the grain boundary, leading to intergranular corrosion, intergranular corrosion and damaged metal matrix. However, plating will accelerate the disaster, and the intergranular corrosion in this area will expand the capping, causing blistering on the casting surface. Especially in humid environment, intergranular corrosion will make castings deformed, cracked, or even broken
3. Causes of cracks: water, cold crack, hot crack
When there are water marks, cold separation marks, and hot cracks in the die casting, the plating solution will penetrate into the cracks, which will be converted into steam baking, and the metal will be deposited on the top to form bubbles
The surface blistering of zinc alloy die castings during processing is a serious phenomenon, which will directly affect the appearance of the products. Therefore, it is necessary to understand its causes and make solutions according to the specific problems
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