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1. (WO2018201702) RARE EARTH TUNGSTEN ALLOY CRUCIBLE AND MANUFACTURING METHOD THEREOF

Pub. No.:    WO/2018/201702    International Application No.:    PCT/CN2017/112281
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Thu Nov 23 00:59:59 CET 2017
IPC: C22C 27/04
C22C 32/00
C22C 1/05
C22C 1/10
B22F 9/22
B22F 3/04
B22F 3/10
Applicants: HESHAN WODE TUNGSTEN & MOLYBDENUM CO. LTD
鹤山市沃得钨钼实业有限公司
Inventors: MIU, Guofeng
缪国锋
Title: RARE EARTH TUNGSTEN ALLOY CRUCIBLE AND MANUFACTURING METHOD THEREOF
Abstract:
A rare earth tungsten alloy crucible and a manufacturing method thereof. The rare earth tungsten alloy crucible comprises, in mass percent, 1.3-2.5% of lanthanum oxide and 97.5-98.7% of tungsten. The manufacturing method comprises the following steps: step (1): preparing a rare earth tungsten alloy, step (2): preparing a rare earth tungsten alloy crucible blank, and step (3): preparing a finished product. The rare earth tungsten alloy crucible has excellent high-temperature mechanical properties and high creep resistance, tensile strength, toughness, and durability, thereby reducing the usage cost.