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在生產中,經常發現含碳量稍高的3(?)13及4(?)13不銹钢在热加工後發生嚴重的表面裂纹,以致產生大量的報廢而影响正常生產。如[圖一]所示,为4(?)13不銹鋼鍛后在砂中保溫冷却後的表面裂紋情况。本試驗研究的目的,在探求13铬不銹鋼於热压力加工後的冷却制度对鋼表面裂紋的影响,从而找出一个合理的冷却制度,以消滅不銹鋼的表面裂紋缺陷。这在目前大規模的經济建設中,增加优質不鎊鏑的供应,是有重要意义的。
In production, it is often found that 3 (?) 13 and 4 (?) 13 stainless steels with a slightly higher carbon content undergo severe surface cracking after hot working, resulting in a large amount of scrapping which affects normal production. As shown in Figure 1, the surface cracks after 4 (?) 13 stainless steel forging cooling and cooling in the sand. The purpose of this study is to explore the impact of 13 chrome stainless steel cooling system on the steel surface cracks after hot pressing process to find a reasonable cooling system to eliminate surface defects of stainless steel. In the current large-scale economic construction, it is of great significance to increase the supply of quality non-dysprosium.