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在钢铁工业、机械工业的生产中,常常需要将钢件加热,由于气氛中氧气的作用,钢件表面组份和尺寸会发生变化,从而影响钢件使用性能和增加钢件加工工作量。保护钢件在加热过程中不氧化、不脱碳是生产中一个很突出的问题。202 涂料便是一种硅酸盐质的钢件热处理保护用的涂料,它在常温下涂敷在一般碳钢和某些含碳合金钢表面,高温时对其表面起着抗氧化、防脱碳的保护作用。涂料使用的温度范围为800—1200℃,保护时间依温度高低而定,可达数小时至十几小时。涂料涂敷在钢件平整表面上,在一般情况下,钢件加热后冷却时,涂层自行剥落。
In the steel industry, the production of machinery industry, often need to heat the steel, due to the role of oxygen in the atmosphere, the steel surface composition and size will change, thus affecting the steel performance and increase the amount of steel processing workload. Protection of steel in the heating process is not oxidation, non-decarbonization is a very prominent issue in production. 202 paint is a silicate steel heat treatment protective coating, which is coated at room temperature on the general carbon steel and some carbon-alloy steel surface, the surface at high temperatures play an anti-oxidation, anti-off Carbon protection. Coating temperature range of 800-1200 ℃, the protection time according to the temperature level may be up to several hours to ten hours. The coating is applied to the smooth surface of the steel. In general, when the steel is heated and cooled, the coating peels off on its own.