A Welding Process of Stainless Steel Control Box

A welding process and control box technology, which is applied to the welding process field of stainless steel control box, can solve the problems of large difference in welding seam width, poor welding seam sealing performance, poor aesthetics, etc., so as to achieve smooth and smooth welding seam and good welding effect. , reliable performance

Active Publication Date: 2015-08-19
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the welding of thick plate shells, usually plates with a thickness of more than 5mm, often has the problem of poor sealing performance of the weld seam. At the same time, due to the different parameter control during operation, the width of the weld seam varies greatly, and the aesthetics are poor.

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  • A Welding Process of Stainless Steel Control Box

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Comparison scheme
Effect test

Embodiment 1

[0011] This embodiment provides a welding process for a stainless steel control box, characterized in that: the welding process of the stainless steel control box is manual welding, the wall thickness of the control box is 7mm, and the welding place has a V, U or X-shaped groove. Degreasing and descaling the weldment and filler wire;

[0012] Welding parameters: welding current 240A, arc length 0.5mm, arc voltage 8V, welding speed 5mm / s, shielding gas flow is carbon dioxide gas, gas flow rate 20L / min, distance between welding tip and workpiece 15mm, nozzle diameter 2mm; welding is adopted With direct current, the electrode serves as both the arc carrier and the welding seam filling material; the electrode is composed of alloy or non-alloy metal core wire and electrode coating. This coating protects the welding seam from air damage and stabilizes the arc at the same time. It causes the formation of a slag layer and protects the weld to make it shape; the electrode is a titanium el...

Embodiment 2

[0014] This embodiment provides a welding process for a stainless steel control box, characterized in that: the welding process of the stainless steel control box is manual welding, the wall thickness of the control box is 7mm, and the welding place has a V, U or X-shaped groove. Degreasing and descaling the weldment and filler wire;

[0015] Welding parameters: welding current 250A, arc length 2mm, arc voltage 9V, welding speed 8mm / s, shielding gas flow is carbon dioxide gas, gas flow rate 22L / min, distance between welding tip and work piece 20mm, nozzle diameter 5mm; welding adopts direct current The electrode is used as an arc carrier and as a filler material for the welding seam; the electrode is composed of alloy or non-alloy metal core wire and electrode coating. This coating protects the welding seam from air damage and stabilizes the arc. It also causes The formation of the slag layer protects the weld to make it shape; the electrode is a titanium electrode.

Embodiment 3

[0017] This embodiment provides a welding process for a stainless steel control box, characterized in that: the welding process of the stainless steel control box is manual welding, the wall thickness of the control box is 7mm, and the welding place has a V, U or X-shaped groove. Degreasing and descaling the weldment and filler wire;

[0018] Welding parameters: welding current 260A, arc length 3mm, arc voltage 10V, welding speed 10mm / s, shielding gas flow is carbon dioxide gas, gas flow rate 25L / min, distance between welding tip and workpiece 25mm, nozzle diameter 6mm; welding adopts direct current The electrode is used as an arc carrier and as a filler material for the welding seam; the electrode is composed of alloy or non-alloy metal core wire and electrode coating. This coating protects the welding seam from air damage and stabilizes the arc. It also causes The formation of the slag layer protects the weld to make it shape; the electric welding rod is an alkaline welding rod...

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Abstract

The invention discloses a welding process of a stainless steel control box. The welding process is characterized in that the wall thickness of the control box is 7 millimeters; a V-shaped or U-shaped or X-shaped groove is formed at a welding position; for a welding piece, a filling welding wire is subjected to oil removal and descaling; for welding parameters, welding current is 240 to 260A, arc length is 0.5 to 3 millimeters, arc voltage is 8 to 10V, welding speed is 5 to 10 millimeters / second, and protection airflow is carbon dioxide gas; direct current is adopted for welding, and an electrode serves as an arc carrier and also serves as a welding line filling material; the electrode comprises an alloy or non-alloy metal core wire and a welding rod cover, and the cover is used for protecting a welding line from being damaged due to air and stabilizing arc, gives rise to forming a slag layer, and protects the welding line to be formed; and an electric welding rod is a titanium welding rod or an alkaline welding rod. The welding process is simple to operate and has a good welding effect on a stainless steel plate, the welding line is flat and smooth with good airtightness, and a component in the control box is protected from outside pollution, and is ensured to be reliable in performance.

Description

Technical field [0001] The invention relates to the technical field of thick plate shell welding, in particular to a welding process of a stainless steel control box. Background technique [0002] At present, the welding of thick plate shells, usually plates of 5 mm or more, often has the problem of poor sealing performance of the weld seam. At the same time, due to the different parameter control during operation, the width of the weld seam varies greatly and the aesthetics is poor. Summary of the invention [0003] The purpose of the present invention is to improve welding quality, and provides a welding process for a stainless steel control box. [0004] The present invention provides a welding process for a stainless steel control box, which is characterized in that: the welding process of the stainless steel control box is manual welding, the wall thickness of the control box is 7mm, and the welding place has a V, U or X-shaped groove. Weldments, filler wire for degreasing and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16
Inventor 王玲刘胜春
Owner STATE GRID CORP OF CHINA
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