Description : solution treatment is to dissolve the matrix carbides , γ ' is equal to a homogeneous supersaturated solid solution , the precipitation of fine particles re- aging facilitate uniform distribution of the carbide and γ' phase to strengthen the like , and eliminate the Hot and cold stress resulting from processing the alloy recrystallization .

Treatment:
Solution treatment is to dissolve the matrix carbides , γ ' is equal to a homogeneous supersaturated solid solution , the precipitation of fine particles re- aging facilitate uniform distribution of carbides and γ' phase to strengthen the like , and eliminate the generation of cold and heat processing stress recrystallization of the alloy . Secondly, the solution treatment is to obtain a suitable grain size, in order to ensure high-temperature creep resistance alloys . The solution treatment temperature range of between about 980 ~ 1250 ℃, precipitation and dissolution of the major phase and the requirement to select the law , necessary to ensure that the main precipitation strengthening phase conditions and a grain size according to the respective alloys. For long-term use of high-temperature alloys , requires persistence and good high temperature creep properties , should choose a higher solution temperature to obtain a larger grain size ; For use in temperature and require better temperature hardness, yield strength, tensile strength , fatigue strength and impact toughness of the alloy , the lower the solution temperature may be used to ensure that a small grain size. High temperature solution treatment, the precipitation of various phases are gradually dissolved , and grain growth ; low temperature solution heat treatment , not only the main strengthening phase is dissolved , and may have some of the precipitates . For alloys with low degree of supersaturation , the faster the cooling rate is usually selected ; over saturation of the alloy is usually in the cooling air .

Solution heat treatment of stainless steel
The solubility of carbon in austenite stainless steel with temperature has a great influence . The austenitic stainless steel within 400 ℃ ~ 850 ℃ temperature range , there is a high chromium carbide precipitation , when the chromium content is reduced below the boundary corrosion , when the chromium depleted grain boundaries will intergranular corrosion , the powder can become severe . So there is a tendency to intergranular corrosion of austenitic stainless steel should be solution heat treatment or stabilization treatment .

Solution heat treatment : heating austenitic stainless steel to about 1100 ℃, so that all or substantially dissolve the carbide phase , a solid solution of carbon in austenite , and then rapidly cooled to room temperature , the carbon reached saturation. This heat treatment method for the solution heat treatment .

The rapid cooling of the solution heat treatment quenching seems like an ordinary steel , but this time ' hardening ' of hardened common steel is different, the former is softened , which is hardened . The heating temperature which is taken to obtain different hardness is not the same, but not to the 1100 ℃.

Su's heat treatment Co. Ltd. was founded in 1990, after decades of development, scale is continually expanding, is located in Shajing Town Baoan District Shenzhen City Bridge second industrial zone, covering an area of 3000 square meters, the main business is to take all the metal, alloy steel, beryllium copper, heat treatment of high speed steel, cryogenic treatment (-196 C), nitrogen gas, liquid nitrogen, QPQ salt bath production line, high-frequency quenching, blackening and carburizing, the surface of hard and stainless steel processing.
The company is equipped with power of heat treatment technology, established a perfect quality testing equipment, equipped with vacuum quenching furnace, vacuum furnace, pit furnace, furnace, liquid nitrogen atmosphere furnace, rotary furnace, large mesh belt furnace, improve metallographic inspection equipment, material failure analysis, scientific management and complete, rigorous technology, skilled operation.
Company will be excellent quality and perfect service, and actively challenge, satisfy customer demand, has passed ISO9001:2000 in 2003 September (SGS) international quality certification. Has now become a reputable manufacturers.