Application of Sand Casting in Mechanical Equipment

Sand casting is widely used in the manufacture of machinery and equipment, and the proportion of casting weight in machinery and equipment is high.‌

Sand casting is a method of pouring molten metal into the sand cavity and obtaining castings after cooling and solidification. Because the molding materials used in sand casting are cheap and easy to obtain, the casting is simple to manufacture, and can adapt to the single production, batch production and mass production of castings, it has been the basic process in casting production ‌ for a long time. In mechanical equipment, castings account for about 45%-60% of the weight of the entire mechanical equipment, about 70%-80% in metal cutting machine tools, about 70% in tractors, and about 40%-60% in automobiles. In heavy machinery, mining machinery, hydroelectric power equipment and other products, casting weight can reach more than 85% ‌.

Advantages of sand casting:

(1)‌ Low cost ‌ : The molding materials used in sand casting are cheap and easy to obtain, the mold is simple to manufacture and suitable for mass production.

(2)‌ Wide application ‌ : suitable for the casting of various metals, including steel, iron and most non-ferrous alloys ‌.

(3)‌ Mature process ‌ : sand casting is a long history of the process method, mature technology, widely used ‌.

The process of sand casting includes the following steps:

1. ‌ Making pattern and core box ‌ : Making pattern and core box according to casting design.

2. ‌ sand filling and compacting ‌ : Fill the loose molding sand into the sand box and compact the molding sand.

3. ‌ pouring ‌ : liquid metal is introduced into the mold.

4. ‌ cooling and solidification ‌ : after the solidification of liquid metal, break the shell and clean the sand, take out the casting.

5. ‌ follow-up treatment ‌ : necessary cutting of the casting to meet the final application needs

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Jinhong has been engaged in sand casting for many years and has rich experience in casting processing. The factory has a special sand casting workshop and machining workshop, We are always ready to provide you with sand casting and machining services!