所属分类：常见问题 发布时间：2020-10-14 11:07:29 来源：http://www.lcnmb500.com 浏览量：
Hardox400 wear-resistant plate can not be used immediately after production. Must pass through heat treatment, guarantee product quality, can use more at ease.
Heat treatment can further improve the product quality and service life. The surface quality of Hardox400 wear-resistant plate also depends on the heat treatment process of Hardox400 wear-resistant plate, so the heat treatment of Hardox400 wear-resistant plate is an important link in the whole production process.
If the thickness of oxide scale on Hardox400 wear-resistant plate surface is not uniform, the surface finish of base metal under the thickness is different, and the dissolution of oxide scale on the surface and the corrosion degree of base metal of attached oxide scale are also different, so the surface of Hardox400 wear-resistant plate is not uniform.
Therefore, it is necessary to form oxide scale uniformly during heat treatment and heating. In order to achieve the following conditions, it should be noted that if oil is attached to the surface of the workpiece during heating, the thickness and composition of oxide skin on the oil attachment part will be different from other parts, and carburization will occur. The carburized part of the base metal under oxidation will be seriously eroded by acid. During the initial combustion, if the oil droplets ejected from the heavy oil burner * adhere to the workpiece, it will have a great impact.
The operator's fingerprint attached to the workpiece will also have an effect. Therefore, bath workers should not directly touch Hardox400 wear-resistant plate by hand, nor should the workpiece be stained with new oil. If lubricating oil is attached to the surface of the workpiece during cold working, it must be fully degreased in trichloroethylene degreasing agent and caustic soda solution, then cleaned with warm water, and then heat treated.
1. If there are impurities on the surface of the workpiece, heating will certainly affect the scale of organic matter or ash adhering to the workpiece.
2. The oxide scale produced on Hardox400 wear-resistant plate in direct contact with gas or oil flame is different from that at non-contact area. Therefore, when heating, the processed parts shall not directly contact the flame mouth.
Through the above brief introduction of "the relationship between heat treatment and the surface quality of Hardox400 wear-resistant plate", I hope it can help you. If you need more relevant content, please pay attention to the company's website: http://www.lcnmb500.com 。