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Acid red skin stainless steel welding rod with high crack resistance and high porosity resistance

A stainless steel and coating technology, applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problem that the electrode is difficult to obtain high crack resistance and high porosity resistance, and achieve complete slag coverage and alloy. Reasonable ratio, strong porosity and crack resistance

Active Publication Date: 2020-02-28
BEIJING JINWEI WELDING MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] High crack resistance and high porosity resistance properties have been found to be difficult to achieve with prior art electrodes

Method used

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  • Acid red skin stainless steel welding rod with high crack resistance and high porosity resistance
  • Acid red skin stainless steel welding rod with high crack resistance and high porosity resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of a kind of coated acidic stainless steel electrode

[0052] (a) In parts by weight, take 15 parts of marble, 10 parts of fluorite, 40 parts of rutile, 1 part of titanium dioxide, 10 parts of mica, 2 parts of ferrosilicon, 2 parts of metal chromium, 8 parts of ferrotitanium, and 4 parts of electrolytic manganese , 0.5 part of soda ash, mix each material powder evenly;

[0053] (b) For every 100 parts by weight of the mixed powder in step (a), take 23 parts by weight of potassium sodium water glass and add it to the dry powder and mix evenly. After drying at low temperature for 1 hour, and drying at high temperature, a stainless steel acid-coated electrode is obtained, which is recorded as E308-16.

[0054] Use the acid-coated stainless steel electrode E308-16 obtained in this example to carry out corresponding welding, and the welding current is 90-120A. Its welding process performance is excellent, no air holes appear in the welding on th...

Embodiment 2

[0055] Embodiment 2: Preparation of a kind of coated acidic stainless steel electrode

[0056] (a) In parts by weight, take 20 parts of marble, 7 parts of fluorite, 35 parts of rutile, 3 parts of titanium dioxide, 8 parts of mica, 3 parts of ferrosilicon, 10 parts of metal chromium, 4 parts of ferro-titanium, and 5 parts of electrolytic manganese , 0.5 part of soda ash, mix each material powder evenly;

[0057] (b) For every 100 parts by weight of the mixed powder in step (a), take 22 parts by weight of potassium sodium water glass and add it to the dry powder and mix evenly. After drying at a low temperature for 1 hour, and then drying at a high temperature, a stainless steel acid-coated electrode is obtained, which is designated as E308L-16.

[0058] Use the acidic stainless steel electrode E308L-16 with the coating obtained in this embodiment to carry out corresponding welding, and the welding current is 120-160A. Its welding process performance is excellent, no porosity ...

Embodiment 3

[0059] Embodiment 3: Preparation of a kind of coated acidic stainless steel electrode

[0060] (a) In parts by weight, take 25 parts of marble, 8 parts of fluorite, 30 parts of rutile, 4 parts of titanium dioxide, 7 parts of mica, 4 parts of ferrosilicon, 5 parts of metal chromium, 5 parts of ferro-titanium, and 7 parts of electrolytic manganese , 1 part of soda ash, and mix the powders of each material evenly;

[0061] (b) For every 100 parts by weight of the mixed powder in step (a), take 24 parts by weight of potassium sodium water glass and add it to the dry powder and mix evenly. After drying at low temperature for 1 hour, and drying at high temperature, a stainless steel acid-coated electrode is obtained, which is recorded as E316-16.

[0062] Use the acidic stainless steel electrode E316-16 with the coating obtained in this embodiment to carry out corresponding welding, and the welding current is 150-200A. Its welding process performance is excellent, no air holes a...

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Abstract

The invention relates to an acid red skin stainless steel welding rod with high crack resistance and high porosity resistance. The acid red skin stainless steel welding rod is prepared by the following steps: uniformly mixing powder materials according to the following weight ratio, then adding potassium sodium water glass which accounts for 20-25% of the total weight of the mixed powder materials, uniformly stirring, pressing and coating on a stainless steel welding core, and then drying, wherein the powder materials comprise the following components in parts by weight: 15-25 parts of marble,30-40 parts of rutile, 1-5 parts of titanium dioxide, 5-10 parts of mica, 2-6 parts of silicon iron, 2-10 parts of metal chromium and the like. The invention also relates to a preparation method of the acid red skin stainless steel welding rod with high crack resistance and high porosity resistance. The acid red skin stainless steel welding rod has excellent properties such as high crack resistance and high porosity resistance.

Description

technical field [0001] The invention belongs to the field of welding materials, and relates to an acid-coated stainless steel electrode with high crack resistance and porosity resistance, and also relates to a preparation method of the acid-coated stainless steel electrode. Background technique [0002] At present, the stainless steel electrodes on the market are mainly acidic electrodes. Acidic stainless steel electrodes have excellent process performance, good fluidity of molten iron, small spatter, easy slag removal, beautiful weld shape and fine lines. Acidic stainless steel electrodes are widely used in the market. But existing such as commercially available acidic stainless steel welding rod has its weak point, and it is sensitive to the oil stain on the parent metal, rust, especially crack resistance and porosity resistance are poor, is difficult to weld the big structure of crack sensitivity. [0003] CN105290635A (Application No.: 201510563907.3, Baoji Petroleum) di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/363B23K35/40
CPCB23K35/0266B23K35/3053B23K35/3602B23K35/404
Inventor 崔晓东王士山董海青李伟陈波朱海滨王磊王立志王学东
Owner BEIJING JINWEI WELDING MATERIAL
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