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How to improve the hardness of machine body castings?

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[Abstract]:
The machine body casting is a device for sand casting, which has better processing performance than other casting methods, and the casting method has low cost.
  The machine body casting is a device for sand casting, which has better processing performance than other casting methods, and the casting method has low cost.
 
  The production process is simple, the production cycle is short, and the wear resistance is good. In order to improve the production precision and quality, how to improve the hardness of the bed casting?
 
  The hardness of the casting body of themachine tool has a great influence on the casting production. The hardness is higher in the metallurgical processing process. Generally, the hardness of the casting has certain requirements during processing. In order to improve the hardness of the casting, we can take The following measures: 1. Improve the temperature of the furnace, improve the internal structure of the furnace, shorten the height of the hearth, and repair the waist at the tuyere. The main purpose is to increase the air supply intensity and strengthen the bottom coke combustion, thereby increasing the temperature of the molten iron. 2 Improve the air supply strength, so that the bottom coke is fully burned. 2. Technically reform the original fan to increase the air supply strength, fully burn the bottom coke, and increase the superheat temperature of the molten iron. The use of large quantities of excellent coke, which not only reduces the cost, but also achieves the purpose of increasing the temperature of the molten iron. 3. Refining the grain, the size of the grain has a great influence on the mechanical properties of the metal. The finer the grain, the better the strength of the metal, the more uniform the structure, and the smaller the hardness fluctuation.
 
  No matter which method is used to improve the hardness of the casting body of the machine tool, it can effectively improve the hardness of the casting and improve the quality. The casting not only saves a lot of production cost compared with the traditional sand type, but also has short production cycle, high production efficiency and good processing quality. Such advantages, are highly loved by consumers.