What is annealing treatment?

Guangdong alloy steel casting is heated to generally around 300°C, after a period of heat preservation, and then cooled to room temperature with the furnace is called annealing. During annealing, the solid solution will be differentiated, and the second phase particles will be aggregated, which can remove the internal stress of the casting, keep the scale of the casting stable, avoid deformation, and enhance the plasticity of the casting.

What is solution treatment?

The casting is heated to almost the melting point of the eutectic, and then kept at this temperature for a longer time, and then rapidly cooled to allow the strengthening components to be best dissolved. Keep this high temperature condition until room temperature. This process is called solid solution deal with. Solution treatment can enhance the strength and plasticity of castings and improve the corrosion resistance of the alloy. The effect of solution treatment is generally related to solution treatment temperature, solution treatment holding time, and cooling rate.

Because Guangdong carbon steel casting products are shaped differently, different finishing methods are required. Using rotating equipment to drive the soft shaft to deepen the inside of the casting pipe hole for clearing treatment, it is suitable for the situation where important castings cannot be heated by a sensation. There are roughly the following methods:

1. Regarding the treatment of sandblasting of castings;

2. Regarding the treatment of mechanical sand removal;

3. Regarding the finishing of compressed air;

4. The stainless steel castings are sandblasted by liquid sandblasting machine;

5. Guangdong stainless steel casting pneumatic picks are used to clean the sand, heating and fine vibration are used to produce cores with cast aluminum easily collapsible resin, and buried copper pipes can be used to replace sand core casting pipes. When finishing pipes, they can be immersed in 40-50% nitric acid. Remove.