Engineering case

All raw materials are imported from Japan SUS314, heat-resistant 1250 ℃, strong anti-oxidation and anti-carburizing.

What are the functional uses of the mesh belt positive furnace?

Release time:

2020-05-07


It is characterized by heating the steel plate to a temperature of about 30 ° C. to 50 ° C. or more above the upper critical point of the ferrite-austenite transformation, making the steel austenitized, and after the insulation is homogenized, cooling in a free atmosphere. Conventional normalizing heat treatment process, after normalizing air cooling, ferrite grains still grow, resulting in lower strength of the steel plate. If the controlled cooling rate is used after normalizing, the phase change temperature can be reduced, the phase change type can be controlled, the phase change tissue can be refined, and the carbon nitride of the microalloy element can be inhibited from growing up, so that it can be dispersed and precipitated at low temperature, thus improving the strength of the steel and keeping the toughness of the steel from decreasing. From the perspective of composition design, under the condition of ensuring the same mechanical properties, the content of carbon or alloying elements in the steel can be reduced, thereby improving the weldability of the steel. To this end, the relevant researchers or manufacturers have carried out exploratory research and development on the cooling equipment and process, and achieved certain results.