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公开(公告)号：US4732623A
公开(公告)日：1988-03-22
申请号：US499995
申请日：1984-01-30
CPC分类号： C21D6/02 , C21D8/0263 , C21D2261/00 , C21D8/0226
摘要： Improved steel profiles having superior material characteristics are obtained by rolling a precipitation-hardenable fine grain steel, cooling it from a final rolling temperature above the A.sub.1 -temperature down to a temperature of about 400.degree. C. in an atmosphere in which it is allowed to overage, whereupon the steel plate or strip is then cooled down to room temperature and cold-processed to form an open profile which can thereupon be converted into a tube by welding together its longitudinally extending edges and which is then subjected to solution-annealing in order-to dissolve coarse precipitants and subsequently further cooled to form finely dispersed precipitants in the profile.
摘要翻译： 通过将沉淀可硬化的细晶粒钢轧制，在高于A1温度的最终轧制温度下将其冷却至约400℃的温度，在允许其的气氛中，获得具有优异材料特性的改进的钢型材 然后将钢板或钢带冷却至室温并进行冷加工以形成开放型材，随后将其纵向延伸的边缘焊接在一起，随后将其转化成管，然后依次进行溶液退火 以溶解粗沉淀剂，随后进一步冷却，以在轮廓中形成精细分散的沉淀剂。
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公开(公告)号：US4414042A
公开(公告)日：1983-11-08
申请号：US106548
申请日：1979-12-26
CPC分类号： C21D6/02 , C21D8/0263 , C21D2261/00 , C21D8/0226
摘要： Improved steel profiles having superior material characteristics are obtained by rolling a precipitation-hardenable fine-grain steel, cooling it from a final rolling temperature above the A.sub.1 -temperature down to a temperature of about 400.degree. C. in an atmosphere in which it is allowed to overage, whereupon the steel plate or strip is then cooled down to room temperature and cold-processed to form an open profile [which can thereupon be converted into a tube by welding together its longitudinally extending edges and] which is then subjected to solution-annealing in order to dissolve coarse precipitants and subsequently further cooled to form finely dispersed precipitants in the profile.
摘要翻译： 通过轧制沉淀可硬化的细晶粒钢，通过在高于A1温度的最终轧制温度下将其冷却至约400℃的温度，在允许的气氛中获得具有优异材料特性的改进的钢型材 然后将钢板或钢带冷却至室温并冷加工以形成敞开的轮廓[其随后可以通过将其纵向延伸的边缘焊接在一起而被转换成管） 退火以便溶解粗沉淀剂并随后进一步冷却以在轮廓中形成精细分散的沉淀剂。
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