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Stainless steel welding rod improving vertical welding process performance

A technology of process performance and stainless steel, applied in welding media, manufacturing tools, welding equipment, etc., can solve problems affecting welding operability, affecting weld pool protection, scalding safety, etc., to reduce melting rate, weld pool protection effect is good, Welding calm effect

Active Publication Date: 2021-06-18
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the stainless steel electrode is welded vertically upwards, the molten welding slag has not had time to solidify in the future, and the accumulated excessive slag has already flowed down due to the action of gravity. The slag flowing down greatly affects the protection of the molten pool and affects the welding operability , and bring safety hazards of scalding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A stainless steel electrode for improving the performance of the vertical welding process, comprising a stainless steel core and a coating covering the surface of the stainless steel core; the coating is composed of the following raw materials in parts by weight: 35 parts of rutile, 5 parts of zirconium quartz, feldspar 6 parts, marble 15 parts, fluorite 2 parts, dolomite 5 parts, magnesia 3 parts, AL 2 o 3 3 parts, 7 parts of electrolytic manganese metal, 7 parts of metal chromium, 5 parts of titanium iron, 4 parts of iron powder, 2 parts of sodium alginate, 1 part of microcrystalline cellulose.

[0038] Among the components of the drug skin: TiO in rutile 2 Mass content ≥ 95.0%, S mass content ≤ 0.015%, P mass content ≤ 0.020%; Zr(Hf)O in zirconium quartz 2 Mass content ≥ 63.0%, S mass content ≤ 0.015%, P mass content ≤ 0.030%; SiO in feldspar 2 Mass content 60-65%, Al 2 o 3 Mass content 15-25%, K 2 O mass content ≥ 7%, S mass content ≤ 0.020%, P mass content ≤...

Embodiment 2

[0040] A stainless steel electrode for improving the technical performance of vertical welding, comprising a stainless steel welding core and a coating covering the surface of the stainless steel welding core; the coating is composed of the following raw materials in parts by weight: 30 parts by weight of rutile, 8 parts of zirconium quartz, feldspar 8 parts, marble 12 parts, fluorite 4 parts, dolomite 7 parts, magnesia 2 parts, AL 2 o 3 5 parts, 8 parts of electrolytic manganese metal, 6 parts of metal chromium, 3 parts of titanium iron, 7 parts of iron powder, 1 part of sodium alginate, 2 parts of microcrystalline cellulose. The chemical composition mass content of the Chinese medicine powder in the drug skin is the same as that in Example 1.

Embodiment 3

[0042] A stainless steel electrode for improving the performance of the vertical welding process, comprising a stainless steel welding core and a coating covering the surface of the stainless steel welding core; the coating is composed of the following raw materials in parts by weight: 40 parts by weight of rutile, 3 parts of zirconium quartz, feldspar 9 parts, marble 18 parts, fluorite 5 parts, dolomite 2 parts, magnesia 5 parts, AL 2 o 3 2 parts, 5 parts of electrolytic manganese metal, 7 parts of metal chromium, 5 parts of titanium iron, 2 parts of iron powder, 1.5 parts of sodium alginate, 1.5 parts of microcrystalline cellulose. The chemical composition mass content of the Chinese medicine powder in the drug skin is the same as that in Example 1.

[0043] The welding rods obtained in Examples 1-3 were subjected to a welding process performance test. Flat welding position welding: stable arc, small spatter, easy slag removal, and beautiful weld bead formation. Vertical ...

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Abstract

The invention provides a stainless steel welding rod improving vertical welding process performance. The stainless steel welding rod comprises a stainless steel core wire and a coating wrapping the surface of the stainless steel core wire, the coating is prepared from the following raw materials, in parts by weight, 30-40 parts of rutile, 3-8 parts of zircon quartz, 5-10 parts of feldspar, 10-18 parts of marble, 2-6 parts of fluorite, 2-8 parts of dolomite, 1-5 parts of magnesia, 1-5 parts of aluminum oxide, 5-10 parts of electrolytic manganese metal, 5-10 parts of chromium metal, 3-6 parts of ferrotitanium, 2-7 parts of iron powder, 1-2 parts of sodium alginate and 1-2 parts of microcrystalline cellulose. According to the stainless steel welding rod improving the vertical welding process performance, the excellent flat welding process performance of an acid coating stainless steel welding rod is reserved, meanwhile, by designing the coating of the welding rod, the welding rod melting rate is reduced, the slag forming number in unit time is reduced, the slag solidification rate is improved, vertical welding slag is stably solidified and does not flow downwards, and the vertical welding operability of the stainless steel welding rod is improved.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a stainless steel welding rod for improving the technical performance of vertical welding. Background technique [0002] Because the resistivity of the stainless steel welding core used in the stainless steel electrode is 6-7 times larger than that of the carbon steel welding core, the resistivity is high, and the thermal conductivity is only 1 / 3 of the carbon steel welding core, and the thermal conductivity is poor. When welding with traditional stainless steel electrodes, under the dual effects of strong resistance heat and low thermal conductivity, the temperature of the welding core is high, the heating is severe, the melting speed of the electrode is fast, and the rate of slag produced by welding is correspondingly accelerated. When the stainless steel electrode is welded vertically, the molten welding slag will not be solidified in the future, and the ...

Claims

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Application Information

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IPC IPC(8): B23K35/02B23K35/36B23K35/40
CPCB23K35/0266B23K35/3601B23K35/40
Inventor 肖辉英刘文利唐艳丽牛月军黄万民
Owner TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP
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