公开(公告)号：US5458704A

公开(公告)日：1995-10-17

申请号：US152034

申请日：1993-11-12

申请人： Jochen Bobbert ,  Rudolf Kawalla ,  Hans Pircher ,  Gerd Sussek ,  Gunter Weihrauch

发明人： Jochen Bobbert ,  Rudolf Kawalla ,  Hans Pircher ,  Gerd Sussek ,  Gunter Weihrauch

IPC分类号： C21D6/00 ,  C21D8/02 ,  C21D9/42 ,  C22C38/44 ,  C21D7/13

CPC分类号： C21D9/42 ,  C21D8/0226 ,  C22C38/44 ,  C21D6/001 ,  C21D8/021 ,  C21D8/0263 ,  Y02P10/212

摘要： The invention relates to a process for the production of very hard armour plates from steel slabs, wherein the slabs are hot rolled to a final thickness above 50 mm and then hardened and possibly tempered. The characterizing feature of the invention is that a continuously cast slab is produced from a steel having0.25 to 0.32% C0.05 to 0 75% Si0.10 to 1.50% Mn0.90 to 2.00% Cr0.10 to 0.70% Mo1 20 to 4 50% Ni0.01 to 0.08% Almax 0.015% Pmax 0.005% Smax 0.012% Nresidue Fe, including usual impurities,the slab then being heated to a temperature of 1150.degree. C. or higher and heated through, whereafter following cooling in air and by the spraying of its two wide sides with pressurized water, the slab is hot rolled with a surface temperature in the range of 1050.degree. to 900.degree. C. in shaping passes having an individual deformation of .epsilon..sub.h >0.1 and with a shape factor SF>0.40 to the final thickness.

摘要翻译： 本发明涉及一种用于从钢板生产非常硬的装甲板的方法，其中将板坯热轧至最终厚度大于50mm，然后硬化并可能回火。 本发明的特征在于，连续铸造的板坯由具有0.25〜0.32％的C 0.05〜0 75％的Si 0.10〜1.50％的Mn，0.90〜2.00％的Cr，0.10〜0.70％的Mo 1，20〜40％的钢， Ni 0.01〜0.08％Al最大0.015％P最大0.005％S最大0.012％N残渣Fe，包括通常的杂质，然后将板坯加热至1150℃以上的温度，然后通过加热，然后在空气中冷却后， 通过用加压水喷射其两个宽边，将板坯在1050℃至900℃的范围内热轧，其形状通过具有εh> 0.1的单个变形并且具有形状因子SF > 0.40至最终厚度。