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Digitization process technology of cooling grooves on nozzle of liquid-propellant rocket engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2014年04期
Page:
57-61
Research Field:
工艺与材料
Publishing date:

Info

Title:
Digitization process technology of cooling grooves on nozzle of liquid-propellant rocket engine
Author(s):
HAN Lei;  HE Wei-dong
Xi’an Space Engine Factory, Xi’an 710100, China
Keywords:
liquid-propellant rocket engine;  nozzle;  digitization processing;  processing technology
PACS:
V434.2-33
DOI:
-
Abstract:
To solve the problems that the accuracy can not be guaranteed and the efficiency is difficult to improve, which exist in digitization processing method and technology of the cooling grooves on nozzle liquid rocket engine, the technology of local bright surface treatment with blue oil is proposed on the basis of the developed processing technology and system. The degree of partial reflection can be reduced by painting blue oil evenly on the bright surface of the nozzle. The laser measurement accuracy was improved with the local bright surface treatment with blue oil. By means of triangle auxiliary bracket mounted on the end portion of the ram, the reliable calibration technology of laser sensors can ensure that the position of laser sensors is fixed. The proposed software is utilized in the automatic root clearing technology nozzle products. The experimental results show the errors of the groove depth and wall thickness were controlled within the tolerance range and met the requirements of dimensional accuracy of the nozzle. With the technologies, the proportion of automatic processing in actual production was increased, the qualified rate of the parts was improved and the processing efficiency was increased by 30%.

References:

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Memo

Memo:
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Last Update: 1900-01-01