High-temperature alloy extrusion pad and preparation method thereof

• Main Authors: ZHOU XIANGDONG, PU HAIYONG, ZHOU XIAOHONG, PU YILONG, LI SHUPING, LYU JUN
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a high-temperature alloy extrusion pad and a preparation method thereof. An extrusion pad is round, a round extrusion inner hole is formed in the middle of the extrusion pad,and the extrusion pad is made of Ni-Cr-Fe-based precipitation hardening type deformation high-temperature alloy. The high-temperature alloy extrusion pad comprises, by weight, 17-21% of Cr, 50-55% ofNi, 2.8-3.3% of Mo, 4.75-5.50% of Nb, 0.20-0.80% of Al, 0.65-1.15% of Ti, less than or equal to 0.1% of impurity elements and the balance Fe. The preparation method is simple, and the steps are easy to operate; and the prepared GH4169 high-temperature alloy extrusion pad is used as an extrusion die of an high-nickel-content cupronickel alloy pipe, so that the high-temperature alloy extrusion pad has high strength and high temperature resistance, prolongs the service life of the die, reduces the rejection rate of products, and reduces the production cost. 本发明涉及种高温合金挤压垫及其制备方法，挤压垫为圆形，挤压垫的中间设置有圆形挤压内孔，挤压垫为Ni-Cr-Fe基沉淀硬化型变形高温