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Novel calcium titanate slag system flux-cored wire and preparation method thereof

A technology of flux-cored welding wire and calcium titanate, which is applied in welding equipment, welding media, manufacturing tools, etc., can solve problems such as poor operability, low low-temperature impact toughness, and instability, and achieve reduced content, excellent crack resistance, The effect of improving the comprehensive mechanical properties

Active Publication Date: 2012-10-10
江苏孚尔姆焊业股份有限公司
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AI Technical Summary

Problems solved by technology

Acidic flux-cored welding wire represented by rutile system has good operability, but it has the defects of low low-temperature impact toughness and instability, and the crack resistance also needs to be improved; while the flux-cored welding wire of alkaline system has good air-temperature mechanical properties , but poor performance

Method used

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  • Novel calcium titanate slag system flux-cored wire and preparation method thereof
  • Novel calcium titanate slag system flux-cored wire and preparation method thereof
  • Novel calcium titanate slag system flux-cored wire and preparation method thereof

Examples

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Embodiment Construction

[0039] The novel calcium titanate slag-based flux-cored welding wire of Examples 1-5 of the present invention, the flux of the flux core is prepared according to the ratio listed in Table 1, and the unit is g

[0040] Table 1:

[0041]

[0042] Among them, the proportioning ratio of each component of the 197 additives by mass is shown in Table 2.

[0043] Table 2:

[0044] components Example 1 Example 2 Example 3 Example 4 Example 5 Bauxite 1 　 　 　 1 quartz 　 1 　 　 　 Potassium feldspar 　 　 1.5 　 　 Albite 　 　 　 1 　 Alkali metal oxide 1 2 1.5 　 1.5 Cerium fluoride 1 　 　 　 0.5 Yttrium oxide 　 2 2 　 　 Teflon powder 1 　 　 　 　 cryolite 　 1 　 1 　

[0045] Table 3 shows the mass ratios of the components in calcium titanate corresponding to the above-mentioned examples.

[0046] table 3

[0047] components Example 1 Example 2 Example 3 Example 4 Ex...

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Abstract

The invention relates to a novel calcium titanate slag system flux-cored wire and a preparation method thereof. The novel calcium titanate slag system flux-cored wire is characterized in that welding flux of the flux-cored wire contains rutile and calcium titanate, wherein the mass ratio of the rutile to the calcium titanate is 10-15:22-28. The novel slag system flux-cored wire not only has the processing property of the flux-cored wire of a rutile slag system, but also has the mechanical property of an alkaline flux-cored wire. When the slag system flux-cored wire is adopted to weld, the operating performance is good, the spatter is small, the slag detachability is good, the low-temperature impact toughness is excellent, and compared with a traditional acidic flux-cored wire, the crack resistance is improved obviously. The content of diffusible hydrogen of the acidic flux-cored wire is greatly reduced, H5 standard can be reached, the comprehensive mechanical property of the acidic flux-cored wire is improved, the low-temperature impact value can be more than 50J even at the temperature of 50 DEG C below zero, and the crack resistance is excellent.

Description

technical field [0001] The invention relates to a flux-cored welding wire, in particular to a novel calcium titanate slag-based flux-cored welding wire and a preparation method thereof. Background technique [0002] Flux cored wire welding is compatible with the advantages of manual electrode and gas shielded welding solid wire welding. It has high production efficiency and good welding process performance. It has been widely used in the welding of carbon steel, low alloy steel and high alloy steel. The core materials of flux-cored wires commonly used at present are divided into two systems, one is an acidic system, such as rutile-based flux-cored wire, and the other is an alkaline system, such as calcium fluoride and magnesium oxide. Acidic flux-cored welding wire represented by rutile system has good operability, but it has the defects of low low-temperature impact toughness and instability, and the crack resistance also needs to be improved; while the flux-cored welding w...

Claims

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Application Information

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IPC IPC(8): B23K35/368B23K35/40
Inventor 喻朝飞张建忠
Owner 江苏孚尔姆焊业股份有限公司
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