We know that in order to improve the performance of metals, heat treatment needs to be carried out, and heating is a very important process in the whole heat treatment process. The final processing quality and heating process of Metal heat treatment have a great impact.
Heat treatment of all kinds of stainless steel after welding: after welding, the chromium element in stainless steel is often dispersed and precipitated with carbon to form chromium carbide in the high temperature region (HAZ), resulting in the decrease of local chromium composition and the inability to form a protective film. However, perforation and other corrosion often occur in these heat-affected areas, which can remedy the fact that after welding, the objects are heat-treated, and the chromium elements in other areas can be diffused to this chromium-deficient area in order to achieve the protective effect.
Heating is one of the important processes of heat treatment. There are many heating methods of metal heat treatment, such as charcoal and coal as heat source, and then liquid and gas fuel. The application of electricity makes heating easy to control and no environmental pollution. These heat sources can be heated directly or indirectly by molten salt or metal or even floating particles.
Metal heat treatment combines pressure processing deformation with heat treatment effectively and closely, so that the workpiece can obtain good strength and toughness is called deformation heat treatment. The heat treatment in negative pressure atmosphere or vacuum is called vacuum heat treatment, which can not only make the workpiece not oxidize and decarbonize, keep the surface of the workpiece smooth and improve the performance of the workpiece, but also carry out chemical heat treatment through infiltration agent.
Overseas manager: Tom Wang
Phone: 0086-13303078975(whatsapp, wechat,line)
Specialist of bar heat treatment furnace in China; Glad to be your business partner in induction heating field.
Post time: 06-10-2019