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Metal powder core type flux-cored wire

A technology of flux-cored welding wire and metal powder core, applied in metal processing equipment, welding medium, welding equipment, etc., can solve the problems of excessive welding slag and spatter, achieve no welding slag, good arc stability, and high welding speed Effect

Active Publication Date: 2021-11-02
山东索力得焊材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of welding wire has more spatter and more welding slag during high-speed welding.

Method used

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  • Metal powder core type flux-cored wire
  • Metal powder core type flux-cored wire
  • Metal powder core type flux-cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0042] Preparation of metal powder new flux cored wire:

[0043] Fill the core powder in the low-carbon steel strip with a filling rate of 14%, and then draw and form it to make a finished welding wire with a diameter of 1.2mm.

[0044] The steel sheath of the flux-cored wire is made of low-carbon steel strip, and its composition is shown in Table 1.

[0045] Chemical composition of table 1 steel strip

[0046] C Si mn P S 0.022 0.003 0.24 ≤0.015 ≤0.015

[0047] The composition and dosage of the drug core are shown in Table 2.

[0048] The composition and consumption % of table 2 medicine core

[0049]

[0050]

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PUM

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Abstract

The invention discloses a metal powder core type flux-cored wire. The metal powder core type flux-cored wire comprises a carbon steel sheath and powder filled in the carbon steel sheath, wherein the powder comprises the following raw materials in percentage by weight: 0.20-1.5% of TiO2, 0.5-1.0% of ZrSiO4, 0.3-0.6% of bauxite, 0.1-0.4% of Bi2O3, 0.1-0.50% of Na2O, 0.4-1.0% of Si, 1.5-2.1% of Mn, 0.3-0.6% of Cr, 0.2-0.7% of Ni, 0.15-0.25% of Ti, 0.004-0.012% of B, and the balance iron powder. The metal powder core type flux-cored wire can prevent such problems as more splashing and more welding slag in high-speed welding, improves the low-temperature impact performance of weld metal, improves the elongation of the weld metal, reaches the ultralow hydrogen level of the diffusible hydrogen content of the weld metal, and can be suitable for all-position welding.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a metal powder-cored flux-cored welding wire. Background technique [0002] Metal powder cored flux cored wire is a new trend in international development in recent years. Japan and the United States have taken the less slag type metal powder cored flux cored wire as one of the focuses of research and development. The key to the rapid development of flux-cored welding wire is that it has many advantages: high efficiency and energy saving, more than half of the energy saving compared with manual welding rods and solid welding wires; automatic or semi-automatic continuous production can be carried out, and the welding productivity is high, which is 3 to 5 times that of manual welding rods; welding process Good performance, good arc stability, small spatter, small smoke, beautiful shape, good slag removal; good welding quality, small tendency of weld slag inclusion and por...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/02B23K35/30
CPCB23K35/0266B23K35/3026Y02P10/20
Inventor 关常勇王德柱曲传颂刘廷臣周宝鑫
Owner 山东索力得焊材股份有限公司
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