Welding technology of aluminium alloy door and window

Abstract

The invention relates to a welding technology of aluminium alloy doors and windows. The welding technology comprises the following steps: a) water washing: using a brush or abrasive paper to remove water, oil and oxides on surfaces of sectional materials; b) clamping: mounting angle combining cushion blocks into cavities of the sectional materials and placing the sectional materials on a dedicated clamping workbench, butting to angle parts, and using a fixture to position and tightly press the angle parts; c) carrying out argon arc welding: using a spot welding method to position the sectional materials clamped on the workbench; starting welding from angle part ends on outer side and ending with angle part ends on inner side, and meanwhile, moving continuously and uniformly during welding; d) processing welding seams and repairing mold through sanding: using an angle grinder to repair crator smoothly firstly, using a thin flat file to finish outer sides of the angle parts, and polishing by using a flat plate sander; e) carrying out coloration treatment: carrying out coloration treatment to surfaces of aluminium alloy sections. The welding technology of aluminium alloy doors and windows has the advantages that problems of fit clearance of cavities of sectional materials and strength at positions of combining angles butt joint to are solved, surfaces of combining angles butt joint are processed without a trace, and market requirements are met.

Description

technical field [0001] The invention relates to a welding process of doors and windows of buildings, in particular to a welding process of aluminum alloy doors and windows. technical background [0002] At present, the angle assembly method of aluminum alloy profiles is usually connected by 45° aluminum angle code assembly angle and 90° self-tapping screw. The butt joints of the window corners made by the above two methods have the following disadvantages: 1. When the thickness of the profile cavity is too large or too small when the 45° aluminum corner code is assembled, it is impossible to ensure that the blanking thickness of the aluminum corner code is consistent with the profile cavity Body fit clearance. 2. The 90° self-tapping screw connection is not firm enough, and the strength and sealing of the corner cannot be guaranteed. 3. If the above two methods are not handled properly, there will be obvious butt wiring traces at the butt joints of the group corners, which...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a traceless aluminum alloy door and window welding process that can not only solve the problem of the fit gap of the profile cavity and the strength and sealing of the butt joints of the corners, but also treat the surface of the butt joints of the corners.