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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  • Description
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  • Application Information

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 th

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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Example Embodiment

[0039] The new type of calcium titanate slag based flux-cored welding wire in Examples 1-5 of the present invention, the flux-cored flux is prepared according to the following table 1, the unit is g

[0040] Table 1:

[0041]

[0042] Table 2 shows the proportions of 197 additive components by mass.

[0043] Table 2:

[0044] Component Example 1 Example 2 Example 3 Example 4 Example 5 Bauxite1　　　1 quartz　1　　　 Potash feldspar　　1.5　　 Albite　　　1　 Alkali metal oxides121.5　1.5 Cerium fluoride1　　　0.5 Yttrium oxide　22　　 Teflon powder1　　　　 cryolite　1　1　

[0045] The proportions of the components in the calcium titanate corresponding to the above embodiments are shown in Table 3.

[0046] table 3

[0047] Component Example 1 Example 2 Example 3 Example 4 Example 5 95 rutile54763 Potassium dichromate6　　　1 Silicate　3　33 Calcium fluoride　46　4 Silica10　5　8 Water glass　9586 marble 46353

[0048] Calcium titanate is prepared by mixing the above-mentioned raw materials correspond...

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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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