论文部分内容阅读
日本Nippon Yakin Kogyo公司研制了一种新型不锈钢。据报导,这种新型不锈钢具有优异的深拉伸性能和压延加工性能而不会产生开裂。 牌号为NAS86D的新型不锈钢的设计成分为:16Cr、8Ni、3Cu、0.6Al、0.2Mo。按照这家公司的冶炼工艺的要求,必需添加少量的Cu和Al才能达到提高拉伸性能的目的。 研制该钢种是为了解决AlSl304型不锈钢在压延成形加工中有时会出现开裂的问题。为了防止开裂现象,在某些过度拉伸过程中(或者拉伸加工后),304型不锈钢必须经过热处理,这就增加了生产成本。
Japan Nippon Yakin Kogyo company developed a new type of stainless steel. It has been reported that this new type of stainless steel has excellent deep drawing and rolling properties without cracking. The design grade for the new stainless steel, NAS86D, is 16Cr, 8Ni, 3Cu, 0.6Al, 0.2Mo. According to the company smelting process requirements, must add a small amount of Cu and Al can achieve the purpose of improving tensile properties. Development of the steel is to solve the AlSl304-type stainless steel in the rolling forming process sometimes cracking problems. In order to prevent cracking, Type 304 stainless steel must be heat-treated during some over-stretching (or after stretching), which increases the production cost.