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Method for connecting ultra-narrow aluminum belts through cold-pressure welding

A welding connection and cold pressure welding technology, which is applied in welding/welding/cutting items, welding equipment, non-electric welding equipment, etc., can solve problems such as increasing difficulty, and achieve the effect of online operation, easy online operation and simple process

Inactive Publication Date: 2019-12-10
镇江龙源铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum strip involved in this project has a rectangular cross-section, which needs to be strictly controlled in size and direction, which significantly increases the difficulty. At present, there is no report on the use of this technology for aluminum strip connection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0016] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0017] A method for connecting ultra-narrow aluminum strips by cold press welding. First, the surface of the aluminum strips to be welded is cleaned to remove dirt and water vapor attached to the surface, and a mold with rectangular cross-section jaws is designed according to the width of the aluminum strips; Insert the jaws of the cold press welding machine mold, and after pre-compression, realize the upsetting of the cold press welding machine for 3 to 5 times, the...

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PUM

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Abstract

The invention discloses a method for connecting ultra-narrow aluminum belts through cold-pressure welding. The method includes the following steps of firstly, cleaning surfaces of to-be-welded aluminum belts to remove dirt and vapor attached to the surfaces, and designing a mold with a rectangular section jaw according to the widths of the aluminum belts; secondly, inserting the aluminum belts into the mold jaw of a cold-pressure welding machine, and conducting upsetting 3-5 times through the cold-pressure welding machine after pre-pressing according to the pressure of 200-300 MPa and the compression amount of 8-12 mm; and thirdly, opening the mold to take out the welded aluminum belts after welding is completed, and removing welding trimmings and burrs. The cold-pressure welding of the rectangular section aluminum belts is realized, the process is simple, online operation is easily realized, no additional welding materials or energy is needed in the operation process, and no adverse effects can be generated on the performance of the aluminum belts.

Description

technical field [0001] The invention relates to a method for connecting ultra-narrow aluminum strips by cold pressure welding. Background technique [0002] The spiral belt is the key heat exchange element of the steam generator. In order to ensure the consistency of the heat transfer characteristics of the heat exchange tube and the uniform heat flow in different parts, and to facilitate the automatic processing of the spiral belt, it is required to use the metal strip made of the same steam generator spiral belt Dimensional accuracy and consistent performance. Considering factors such as thermal conductivity, cost, and processing, ultra-long (above 20,000m) and ultra-narrow (15-20mm) pure aluminum strips are generally used at present. [0003] Internationally, the production technology of ultra-long and ultra-narrow aluminum strips is mainly controlled in the hands of German and American companies. Generally speaking, continuous rolling technology is used for automatic pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/00B23K20/02B23K20/24B23K101/16
CPCB23K20/00B23K20/02B23K20/24
Inventor 薛卫龙陈刚董福伟
Owner 镇江龙源铝业有限公司