Title:
METHOD FOR PROCESSING DOUBLE-LAYER STRUCTURE OF THRUST CHAMBER, AND SPACECRAFT THRUST CHAMBER
Document Type and Number:
WIPO Patent Application WO/2022/116955
Kind Code:
A1
Abstract:
A method for processing a double-layer structure of a spacecraft thrust chamber comprises: providing a first wall structure (1), a second wall structure (2) and ribs (4); bringing the first wall structure (1) and the second wall structure (2) close to each other, and closing the ends of the first wall structure (1) and the second wall structure (2), thereby forming an assembly structure composed of the first wall structure (1), the second wall structure (2) and the ribs (4), the inside of the assembly structure being a closed space; making the closed space to be at a negative pressure, then performing first pressurizing processing on the assembly structure, and next, performing second pressurizing processing in the case where the closed space is in communication with the outside, wherein the maximum pressure of the second pressurizing processing is greater than the maximum pressure of the first pressurizing processing, so that the assembly structure is welded into a whole, and a double-layer structure is obtained. The processing method is simple in process, short in manufacturing cycle and low in cost.
Inventors:
YANG RUIKANG (CN)
XUAN ZHICHAO (CN)
CHANG KEYU (CN)
YUAN YU (CN)
HUANG LE (CN)
ZHOU TAO (CN)
XUAN ZHICHAO (CN)
CHANG KEYU (CN)
YUAN YU (CN)
HUANG LE (CN)
ZHOU TAO (CN)
Application Number:
PCT/CN2021/134260
Publication Date:
June 09, 2022
Filing Date:
November 30, 2021
Export Citation:
Assignee:
LANDSPACE SCIENCE & TECH CO LTD (CN)
International Classes:
G05B19/418; B64G1/40
Domestic Patent References:
| WO2003052255A1 | 2003-06-26 |
Foreign References:
| CN109759789A | 2019-05-17 | |||
| US6205661B1 | 2001-03-27 | |||
| CN111531321A | 2020-08-14 | |||
| CN206206011U | 2017-05-31 | |||
| CN209724523U | 2019-12-03 | |||
| CN106438109A | 2017-02-22 | |||
| CN110202320A | 2019-09-06 | |||
| US8584988B1 | 2013-11-19 | |||
| CN209811495U | 2019-12-20 | |||
| CN209850261U | 2019-12-27 | |||
| CN112177799A | 2021-01-05 | |||
| CN112462714A | 2021-03-09 |
Attorney, Agent or Firm:
BEIJING BEIHUI LAW FIRM (CN)
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