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Machining method of K-shaped partition plate cavity

A processing method and partition technology, which are applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of easy deformation of K-shaped partition components, difficult assembly of K-shaped partition components and body components, etc. The effect of deformation, reduction of poor quality, reduction of assembly difficulty and assembly workload

Active Publication Date: 2021-11-19
XIAN YUANHANG VACUUM BRAZING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a processing method for a K-shaped partition cavity, which solves the problem that the K-shaped partition assembly and the body assembly are difficult to assemble in the process of processing the K-shaped partition cavity using the prior art, and that K The problem of easy deformation of shaped partition board components

Method used

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  • Machining method of K-shaped partition plate cavity
  • Machining method of K-shaped partition plate cavity
  • Machining method of K-shaped partition plate cavity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A processing method for a K-shaped partition cavity, comprising the following steps:

[0059] A1. Use high-strength copper alloy material to cut five corrugated plates and hollow plates with different sizes; spot weld a layer of amorphous solder on both sides of the corrugated plates, and assemble them in five hollow plates respectively, so that the two If the gap is too large, it is allowed to fix multiple layers of solder until the two are pressed together;

[0060] Put the assembled corrugated plate and hollow plate into the vacuum brazing furnace, and braze according to the following procedures:

[0061] Cold vacuum degree 2-5×10 -2 Pa, working vacuum 3-5Pa;

[0062] Heat at a rate of 240-300°C / h to 400-500°C and keep for 0.2-0.4h;

[0063] Heat at a rate of 300-360°C / h to 900-950°C, partial pressure 3-5Pa, and keep for 1-2h;

[0064] Heat at a rate of 360-420°C / h to 1020-1035°C, partial pressure 3-5Pa, and keep for 0.2-0.5h;

[0065] After heating, cool the fu...

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Abstract

The invention relates to the technical field of spaceflight precision machining, and discloses a machining method of a K-shaped partition plate cavity, which comprises the following steps: A1, machining a partition plate and a three-way adapter, and assembling the adapter and the partition plate; fixing the adapter and the partition plate through a partition plate tool, and conducting vacuum brazing to obtain a K-shaped partition plate assembly; A2, machining a fan-shaped water tank, a square runner hole and a flow hole which are communicated with the water inlet hole in the body; wire-cutting a plurality of annular ribs, wherein the annular ribs are assembled on the inner end face of the body; fixing the ring ribs and the body by using a body tool, and conducting vacuum brazing to obtain a body assembly; A3, cutting the body assembly into a body inner ring and a body outer ring; enabling the upper and lower end faces of the inner ring and the ring rib of the body to be respectively subjected to finish turning to form a sinking table surface and finish milling to form a compensation block; roughly turning the reinforcing block; assembling a K-shaped partition plate assembly, the reinforcing block and the compensation block on the inner ring of the body; after fixing by a cavity tool, conducting vacuum brazing to obtain a K-shaped partition plate sub-cavity; and A4, conducting argon arc welding on the outer ring of the body on the periphery of the K-shaped partition plate cavity, and conducting finish machining to obtain the K-shaped partition plate cavity.

Description

technical field [0001] The invention relates to the technical field of aerospace precision machining, in particular to a processing method for a K-shaped diaphragm cavity. Background technique [0002] The K-shaped baffle cavity is a part of the aerospace supercombustion power ground test device. Its main function is to form a cooling channel in the baffle cavity assembly that needs to bear a pressure of 5MPa, which is used to cool the high-temperature gas passing through the K-shaped area. It is mainly composed of a body, a ring rib, multiple partitions and adapters connected between the partitions; among them, multiple partitions and adapters are brazed to form a K-shaped partition assembly, and the body and ring ribs are brazed to form a body Assemblies, the K-shaped bulkhead assembly and the body assembly are brazed to form a K-shaped bulkhead cavity. [0003] The following problems exist when using the existing technology to process the K-shaped partition cavity: 1) Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/02
CPCB23K28/02
Inventor 康路路刘洋周伟超琚明王程成
Owner XIAN YUANHANG VACUUM BRAZING TECH
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