摘要
针对合金钢在高温下出现的氧化、脱碳,以及由其造成的钢材制造过程中材料利用率降低、钢材主要性能下降的现象,提出在热处理、锻造、轧制等热加工前,在合金钢表面施加保护涂层。同时,讨论了合金钢高温防护涂料的研制过程、作用机理及性能。合金钢高温防护涂料在高温下会迅速烧结致密,并与钢材紧密结合,隔绝氧气,同时防止合金钢内部的碳元素溢出,达到在600~1250℃高温下防氧化、防脱碳的效果,而在1200℃及以上温度的长时间加热过程中,可将合金钢的氧化烧损减少至0.3%以下,脱碳层厚度减少至200μm以下。在热历程后,防护涂层具有可控的自剥落性能,可满足不同工艺的要求。
For the oxidation and decarburization of alloy steel at high temperature and the caused reduction of material utilization rate and main performance of steel in the process of steel manufacturing, it was put forward that the protective coating was applied on the surface of alloy steel before hot working such as heat treatment, forging, rolling, and so on. Meanwhile, the development process, action mechanism and performance of high temperature protective coating for alloy steel were discussed. The high temperature protective coating for alloy steel could rapidly sinter and densify at high temperature and is closely combined with steel to isolate oxygen, and the overflow of carbon element inside the alloy steel is prevented to achieve the effect of anti-oxidation and anti-decarburization at high temperature of 600-1250 ℃. Furthermore, in the long-term heating process at 1200 ℃ and above, the oxidation burning loss of alloy steel is reduced to less than 0.3%, and the decarburization layer is reduced to less than 200 μm. Thus, after the thermal process, the protective coating has controllable self-peeling performance, which meets different processes.
作者
冯驰
王建峰
段素杰
Feng Chi;Wang Jianfeng;Duan Sujie(Beijing Tianlichuang Glass Technology Development Co.,Ltd.,Beijing 100176,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2022年第4期235-241,共7页
Forging & Stamping Technology
关键词
合金钢
高温防护涂料
防氧化
防脱碳
自剥落
alloy steel
high temperature protective coating
anti-oxidation
anti-decarburization
self-peeling
