Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for welding body of pump for anti leak of compressor

A welding method and compressor pump technology, applied in welding equipment, aluminothermic welding equipment, metal processing equipment, etc., can solve the problems of thermal deformation of upper bearings and cylinders, affecting compressor performance, refrigerant leakage, etc., and achieve high processing efficiency. , avoid thermal stress, prevent leakage effect

Inactive Publication Date: 2007-02-21
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is following problem in this prior art rotary compressor: the compression mechanical part adopts three-point welding method to directly weld the shell 1 and the upper bearing together by three welding holes formed on the circumferential wall of the shell 1, because this The welding heat input of the connection method is relatively large, so the upper bearing and cylinder are prone to thermal deformation, and the welding strength and quality are not good, which may cause problems such as refrigerant leakage and friction of moving parts, which will affect the performance of the compressor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for welding body of pump for anti leak of compressor
  • Method for welding body of pump for anti leak of compressor
  • Method for welding body of pump for anti leak of compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The method for welding the anti-leakage pump body of the compressor of the present invention will be described in conjunction with the accompanying drawings and embodiments.

[0017] like figure 2 , 3 Shown, the step of compressor leak-proof pump body welding method of the present invention is:

[0018] Firstly, chamfer α is processed on the outer edge of the upper end surface of the upper bearing 2 of the fixed compressor pump body to form a solder joint 4, and the angle is 45°≤α≤60°, preferably 50°.

[0019] Then, a thermite welding rod is placed at the chamfer of the welding spot 4 formed between the housing 1 and the upper bearing 2 and at the top of the chamfer.

[0020] Next, the thermite flux is ignited with the igniter of the thermite flux, and after the thermite electrode is melted, the casing 1 and the upper bearing 2 are combined together.

[0021] The igniter using thermite flux is a high-temperature match, that is, the high-temperature match burns at a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An anti-leakage welding method for the pump body of compressor includes such steps as chamfering the top end face of the upper bearing used for fixing said pump body by 45-60 degrees, putting the thermit welding electrode between casing and said upper bearing, using high-temp (1000 deg.C) to ignite said thermit welding electrode, and welding by smelting said welding electrode.

Description

technical field [0001] The invention provides a method for welding an anti-leakage pump body of a compressor. Background technique [0002] In general, a compressor is a machine that compresses a fluid. This compressor is composed of a closed container with a certain internal space, an electromechanical part installed in the closed container to generate a driving force, and a compression mechanical part that can compress fluid by using the driving force of the electromechanical part. figure 1 It is a sectional view of the longitudinal structure of a rotary compressor in the prior art. like figure 1 As shown, the airtight container of this prior art rotary compressor is formed by the cylindrical housing 1 and upper cover and lower cover that are formed with three welding holes equidistantly along its circumference at the bottom. One side of the housing 1 is provided with a refrigerant inlet, and the center of the upper cover is provided with a refrigerant outlet. The elec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K23/00
Inventor 李元鹤魏君泰
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD