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Brazed aluminum part cleaning process

A technology of aluminum parts and brazing, which is applied in the field of cleaning technology of brazed aluminum parts, can solve the problems of insufficient surface brightness, potential safety hazards, easy clogging, etc., and achieve the effect of reducing production costs and good cleaning effect

Pending Publication Date: 2021-10-26
西安诚惠金属材料保护有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing air conditioning pipeline cleaning process, after cleaning, there are still attachments on the inner wall of the pipeline, the surface brightness is not enough, the pipeline is easily blocked after long-term use, and there are potential safety hazards. This application proposes a cleaning method for brazed aluminum parts. process, adopt the cleaning process of this application to clean the air-conditioning pipeline after welding, the surface brightness of the pipeline meets the requirements, the inner wall of the pipeline is cleaned, and there is no pipeline blockage during long-term use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A cleaning process for brazing aluminum parts, specifically comprising the following steps:

[0028] (1) Ultrasonic degreasing: use a rag to apply the ultrasonic cleaning agent on the workpiece, and then put it into the ultrasonic machine;

[0029] (2) Washing for the first time: clean the workpiece after the treatment in step (1) with pure water, and remove the residual liquid on the surface;

[0030] (3) Chemical degreasing: Clean the workpiece after step (2) with a chemical degreasing agent at a temperature of 50°C, and immerse the workpiece in a degreasing tank containing a chemical degreasing agent with a hanging basket or a hanger ;

[0031] (4) Washing for the second time: the workpiece after the treatment in step (3) is cleaned with pure water, and the residual liquid on the surface is removed;

[0032] (5) pickling: the workpiece after step (4) is processed is cleaned with an acid reagent to remove the surface residue and surface oxide layer of brazing. The c...

Embodiment 2

[0036] A cleaning process for brazing aluminum parts, specifically comprising the following steps:

[0037] (1) Ultrasonic degreasing: use a rag to apply the ultrasonic cleaning agent on the workpiece, and then put it into the ultrasonic machine;

[0038] (2) Washing for the first time: clean the workpiece after the treatment in step (1) with pure water, and remove the residual liquid on the surface;

[0039] (3) Chemical degreasing: Clean the workpiece after step (2) with a chemical degreasing agent at a temperature of 55°C, and immerse the workpiece in a degreasing tank containing a chemical degreasing agent with a hanging basket or a hanger ;

[0040] (4) Washing for the second time: the workpiece after the treatment in step (3) is cleaned with pure water, and the residual liquid on the surface is removed;

[0041] (5) pickling: the workpiece after step (4) is processed is cleaned with an acid reagent to remove the surface residue and surface oxide layer of brazing. The c...

Embodiment 3

[0045] A cleaning process for brazing aluminum parts, specifically comprising the following steps:

[0046] (1) Ultrasonic degreasing: use a rag to apply the ultrasonic cleaning agent on the workpiece, and then put it into the ultrasonic machine;

[0047] (2) Washing for the first time: clean the workpiece after the treatment in step (1) with pure water, and remove the residual liquid on the surface;

[0048] (3) Chemical degreasing: Clean the workpiece after step (2) with a chemical degreasing agent at a temperature of 60 ° C, and immerse the workpiece in a degreasing tank containing a chemical degreasing agent with a hanging basket or a hanger ;

[0049] (4) Washing for the second time: the workpiece after the treatment in step (3) is cleaned with pure water, and the residual liquid on the surface is removed;

[0050] (5) pickling: the workpiece after step (4) is processed is cleaned with an acid reagent to remove the surface residue and surface oxide layer of brazing. The c...

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Abstract

The invention relates to the technical field of welding pipeline cleaning, in particular to a brazing aluminum part cleaning process which is used for improving the brightness of the surface of a welding pipeline and avoiding the blockage condition in the using process, and comprises the steps of ultrasonic oil removal, first-time water washing, chemical oil removal, second-time water washing, acid pickling, third-time water washing and inspection, wherein an acid reagent used for acid pickling comprises the following components: chromic anhydride, sodium fluosilicate, sodium hydrogen sulfate and sodium dodecyl sulfate; the problems that attachments exist on the inner wall of a cleaned pipeline through an existing air conditioner pipeline cleaning technology, the surface brightness is not enough, the pipeline is prone to being blocked after being used for a long time, and potential safety hazards exist are solved, the surface brightness of the welded air conditioner pipeline cleaned through the cleaning technology meets the requirements, the inner wall of the pipeline is cleaned thoroughly, the pipeline is not blocked in long-time use, and the cleaning process is very simple.

Description

technical field [0001] The invention relates to the technical field of cleaning welding pipelines, which is used to improve the brightness of the surface of the welding pipelines and avoid clogging during use, and in particular relates to a cleaning process for brazing aluminum parts. Background technique [0002] Brazing refers to a welding method in which the solder below the melting point of the weldment and the weldment are heated to the melting temperature of the solder at the same time, and the gap between the solid workpiece is filled with liquid solder to connect the metal. When brazing, the base metal must first be removed Oxide film and oil stains on the contact surface are conducive to the function of the capillary after the solder is melted, increasing the wettability and capillary fluidity of the solder, the brazing deformation is small, the joint is smooth and beautiful, and it is suitable for precise, complex and different welding. Components composed of mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/12B08B3/12B08B9/023B08B9/027
CPCC23G1/125B08B3/12B08B9/023B08B9/027B08B2209/02
Inventor 陈锁红李文胜夏全民张靖
Owner 西安诚惠金属材料保护有限公司
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