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Welding process for steel plate

A welding process and steel plate technology, applied in welding equipment, welding/welding/cutting items, manufacturing tools, etc., can solve problems such as accidents and low quality of welding workpieces, prevent hardening of the structure, ensure welding quality, welding process simple effect

Inactive Publication Date: 2018-05-08
ANHUI WALTER MACHINERY TRADE
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Problems solved by technology

[0002] Welding is based on the production nature, drawings and technical requirements of the product, combined with the existing conditions, using welding technology knowledge and advanced production experience to determine the processing method of the product. The welding process is a key link in welding production. Whether the welding process is reasonable or not directly affects the product. However, due to the diversity of welding methods and welding materials, there are various irregularities in the welding process, which leads to low quality of welded workpieces and sometimes accidents

Method used

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Embodiment Construction

[0018] A welding process for steel plates, comprising the following steps:

[0019] (1) Preparation before welding:

[0020] First, remove the surface dirt of the parts to be welded;

[0021] Second, prepare the corresponding groove according to the thickness of the steel plate, and clean the base metal in the area to be welded and near the weld area around the groove;

[0022] Third, use inert gas shielded welding;

[0023] (2) Spot welding:

[0024] First, set welding parameters, welding wire selection 1.2-2.5mm, type ER55-D2 heat-resistant steel welding wire, mixed gas flow rate 15-20L / min, welding current 180-220A, welding arc voltage 16-20V, welding speed 250-350mm / min;

[0025] Second, the height and width of the temporary spot welding shall not exceed the size of the future weld;

[0026] Third, according to the size of the welded structural parts, the length of spot welding can be selected from 10 to 80mm, preferably 40mm;

[0027] Third, fill the arc crater;

...

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Abstract

The invention discloses a welding process for a steel plate. The welding process comprises the following steps that 1, pre-welding preparation is carried out, specifically, dirt on the surface of a to-be-welded part is removed; 2, spot welding is carried out, specifically, pre-positioning is carried out on the to-be-welded part; and 3, welding is carried out, specifically, welding technological parameters conforming to conditions are selected for welding the to-be-welded part. The welding process for the steel plate has the advantages that the welding steps are simplified, the welding processis simple, the welding quality of steel pipes can be guaranteed, the hardening structure is effectively prevented during welding, the welding stress is reduced, and the welding deformation is reduced.

Description

technical field [0001] The invention belongs to the technical field of welding technology, in particular, it is a welding technology for steel plates. Background technique [0002] Welding is based on the production nature, drawings and technical requirements of the product, combined with the existing conditions, using welding technology knowledge and advanced production experience to determine the processing method of the product. The welding process is a key link in welding production. Whether the welding process is reasonable or not directly affects the product. However, due to the diversity of welding methods and welding materials, there are various irregularities in the welding process, which leads to low quality of welded workpieces and sometimes accidents. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a welding process for steel plates to improve the quality of welded products. [0004] In order to achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/02B23K9/235B23K9/16B23K101/18B23K103/04
CPCB23K9/02B23K9/164B23K9/235
Inventor 唐小华
Owner ANHUI WALTER MACHINERY TRADE
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