公开(公告)号：US06478900B1

公开(公告)日：2002-11-12

申请号：US08674102

申请日：1996-07-01

申请人： Sachihiro Isogawa ,  Masamichi Kawano ,  Katsuyoshi Sakoda

发明人： Sachihiro Isogawa ,  Masamichi Kawano ,  Katsuyoshi Sakoda

IPC分类号： C21D800

CPC分类号： C21D8/005 ,  C21D7/00 ,  C21D9/0093

摘要： An improved method of forging a precipitation hardening type stainless steel. The method comprises the steps of soaking the precipitation hardening type stainless steel at a temperature of austenitizing range, cooling the steel to a temperature in the range of 200-700° C., preferably 400-600° C., and subjecting the steel to forging at the temperature in this range. Conventional lubricants and die cooling oils can be used without being deteriorated due to high temperature. It is preferable to forcibly cool the soaked steel to adjust the temperature of the steel at which it is forged. The forged steel is then age hardened to exhibit inherent hardness.

摘要翻译： 一种改进的沉淀硬化型不锈钢锻造方法。 该方法包括以下步骤：将沉淀硬化型不锈钢浸渍在奥氏体化程度的温度下，将钢冷却至200-700℃，优选400-600℃的温度， 锻造在这个范围内的温度。 可以使用常规的润滑剂和模具冷却油，而不会由于高温而劣化。 优选将浸渍钢强制地冷却来调整锻造时的钢的温度。 然后将锻钢进行老化硬化以显示固有的硬度。