Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HOT METAL GAS FORMING AND HEAT TREATMENT METHOD FOR THIN-WALLED HOLLOW TI2ALNB-BASED ALLOY COMPONENT
Document Type and Number:
WIPO Patent Application WO/2019/119711
Kind Code:
A1
Abstract:
A hot metal gas forming and heat treatment method for a thin-walled hollow Ti2AlNb-based alloy component comprises the following steps: (1) hot gas forming: a tube preform (10) is put into a die (1) after the die is heated to a shaping temperature, a gas inlet end and a gas outlet end of the tube preform are sealed after the die is closed, then a gas outlet switch (9) is kept closed, and a gas inlet switch (8) is opened, such that a compressed gas I enters the tube preform, and hot gas forming is performed to obtain a hot gas formed tube member; and (2) controllable cooling and heat treatment: the gas outlet switch is opened, then a compressed gas II is input into a pipeline via a gas inlet channel (6), gas pressure and temperature in the pipeline are controlled, and when the temperature of the hot gas formed tube member is lowered to 400-500°C, input of the gas is stopped, thereby obtaining a thin-walled hollow Ti2AlNb-based alloy component. The method improves productivity, achieves integration of shape control and performance control, and obtains a tube having excellent mechanical properties. The invention further discloses a thin-walled hollow Ti2AlNb-based alloy component prepared by the hot metal gas forming and heat treatment method.

Inventors:
LIU, Gang (No. 92 West Dazhi Street, Nangang DistrictHarbin, Heilongjiang 1, 150001, CN)
YUAN, Shijian (No. 92 West Dazhi Street, Nangang DistrictHarbin, Heilongjiang 1, 150001, CN)
WANG, Dongjun (No. 92 West Dazhi Street, Nangang DistrictHarbin, Heilongjiang 1, 150001, CN)
Application Number:
CN2018/085969
Publication Date:
June 27, 2019
Filing Date:
May 08, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HARBIN INSTITUTE OF TECHNOLOGY (No. 92 West Dazhi Street, Nangang DistrictHarbin, Heilongjiang 1, 150001, CN)
International Classes:
B21D26/033; B21D26/041
Domestic Patent References:
WO2017186217A12017-11-02
Foreign References:
CN107052123A2017-08-18
CN106180345A2016-12-07
CN107052127A2017-08-18
CN107199270A2017-09-26
DE19907018A12000-08-24
JP2009220141A2009-10-01
Attorney, Agent or Firm:
BEIJING SUNHOPE INTELLECTUAL PROPERTY LTD. (Suite 1106, Kunxun PlazaZhichun Road 9, Haidian District, Beijing 1, 100191, CN)
Download PDF: