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Talking about the heat treatment process of 304 stainless steel pipe
Time:2019-05-16 Source:Zibo Baishun Stainless Steel Hits:

  Stainless steel pipes are gradually known to everyone, and their use is becoming more and more common. Next, Xiaobian and everyone will learn about the heat treatment process of 304 stainless steel pipes:

  The heat treatment process of 304 stainless steel pipe is divided into three processes of heating, heat preservation and cooling under normal circumstances, but in some cases only heating and cooling are required, and no heat preservation treatment is required. In addition, it should be noted that in these processes, attention should be paid to the connection, and there should be no discontinuity.

  Heating is very important in the heat treatment process of 304 stainless steel tubes. There are many heating methods in the heat treatment process of 304 stainless steel tubes. Coal was used as a heat source at the beginning, and liquid and gas fuels were used as heat sources. Nowadays, it is adopted. The use of electricity for heating, the benefits of this is that it is non-polluting and easy to operate. These 304 heat pipes were used to heat the 304 stainless steel tubes. Do not let the 304 stainless steel pipe leak directly into the air during the heating process. This will cause surface oxidation or decarburization. It should be heated in a controlled atmosphere or a protective atmosphere, or it can be heated in a vacuum environment. .

  After heating to a certain amount of temperature, high temperature tissue will be obtained, but the conversion during this period will take a certain time, so after the temperature is reached, the 304 stainless steel tube needs to be kept at this temperature for a certain period of time, allowing internal and external The temperature is kept consistent so that the microstructure can be converted and it is called the holding time during this time.

  Then there is an indispensable step to cool down. The cooling method should adopt different means according to different processes. It is necessary to control the cooling speed. Generally, the annealing speed will be slower, and the normalizing speed will be slower. The speed is faster, and the quicker method is to quench the 304 stainless steel tube. However, different cooling is required depending on the heat treatment process.

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