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The main raw material used in the cast iron platform is cast iron. If the hardness of the cast iron platform is not high enough, the problem of deformation and damage in the future use of the cast iron platform is prone to occur, and many of the tools used for measurement cannot be used accurately, so that more accurate From the data, it can be seen that the hardness of the cast iron platform has a great influence. So what factors will affect its hardness?
Generally speaking, there are three main factors that affect the hardness of a cast iron platform. They are the cooling rate of the raw material cast iron, the chemical composition of the material, and the processing method. The faster the cooling rate, the higher the hardness, but it is also easier to make the cast iron. Cracks appear on the surface, so be careful when using it.
The higher the hardness of the cast iron, the wider the range in which the cast iron platform can be used in the future, so how can it better improve its hardness? There are mainly the following measures:
1. Increase the temperature of raw material cast iron
The hardness of cast iron has a great relationship with the temperature when the steel solution is released. The temperature is high, the impurities in the steel solution are less, and the oxidation reaction is not easy to occur. Naturally, the hardness is higher, so I want to make the cast iron If the platform has higher hardness, it can increase its temperature, improve the internal structure of the iron furnace, strengthen the supply air intensity, and use better coke, which can effectively increase the temperature of the molten iron.
2, fully refined grains
For metals, the size of the grains can directly affect its hardness and mechanical properties. The finer the grains, the better the strength and hardness of the metal, so it can be inoculated when cast iron is released, which can effectively refine Grains, resulting in better hardness of the cast iron, resulting in a higher quality cast iron platform.