论文部分内容阅读
冶金部钢铁研究总院和沈阳有色金属加工厂共同研制成功的热加工用金属陶瓷挤压模具已经通过鉴定,国家专利局授予专利权。该模具于1990年底已向11个省、市的20多家铜加工厂提供了6000多件模具。挤压有色金属铜过去用的材料主要是钢模具。由于其高温强度和硬度低,抗磨损性能差,挤压过程中模具容易变形,所以使用寿命短。另一种硬质合金材料的模具,由于高温抗氧化性能差,韧性低,抗急冷急热性不好,使用过程中极
Metallurgical Research Institute of Iron and Steel and Shenyang non-ferrous metal processing plant jointly developed by hot metal cermet extrusion die has been identified, the State Patent Office granted the patent. The mold by the end of 1990 has 11 provinces and cities in more than 20 copper processing plants to provide more than 6,000 pieces of mold. Extruded non-ferrous metals copper used in the past mainly steel mold. Due to its high temperature strength and low hardness, wear resistance is poor, the extrusion process easily deformed mold, so the service life is short. Another carbide material mold, due to poor high temperature oxidation resistance, low toughness, anti-cold heat is not good, the use of very