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Stainless steel sintered flux

A technology of sintering flux and stainless steel, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc. It can solve the problems of poor slag removal at the groove, poor slag removal at the bottom layer, serious oxidation color at the welding toe, etc., to achieve welding Good seam formation, stable arc, and moderate weld wetting angle

Inactive Publication Date: 2010-06-16
LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a stainless steel sintered flux, which can solve the problems of the existing stainless steel sintered flux such as serious oxidation color at the welding toe, poor slag removal at the groove, especially poor slag removal at the bottom layer, etc.

Method used

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  • Stainless steel sintered flux
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  • Stainless steel sintered flux

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Stainless steel sintering flux, its mineral raw materials are composed of fused magnesia: 30%, corundum: 20%, fluorite: 10%, cryolite 1%, wollastonite: 16%, zirconia: 3%, chromium oxide green : 5%, ferrosilicon: 2%, quartz powder: 10%, ferromanganese: 3%, after mixing evenly, add 29.3% potassium sodium water glass, bake at 80°C for 3 hours, and at 700°C for 30 minutes, then follow After cooling in the furnace, pass through a 12-60-mesh sieve to obtain the finished sintered flux.

[0027] The finished sintered flux is matched with H0Cr19Ni12Mo2 stainless steel welding wire, which can be used for welding on 316 stainless steel plates

[0028] Test results: The slag removal rate in the groove is 86%, the shape is good, there is no oxidation color on the surface of the deposited metal, the weld shape is beautiful, the height of the weld bead is moderate, the weld formation coefficient is 1.5, and the weld wetting angle is moderate. The properties and chemical properties of ...

Embodiment 2

[0034] Stainless steel sintering flux, its mineral raw materials are composed of fused magnesia: 20%, corundum: 25%, fluorite: 20%, cryolite 5%, wollastonite: 10%, zirconia: 1%, chromium oxide green : 4%, ferrosilicon: 3%, quartz powder: 7, ferromanganese: 5%, after mixing evenly, add 23.5% potassium sodium water glass, bake at low temperature at 120°C for 5 hours, and bake at high temperature at 780°C for 40 minutes, then follow After cooling in the furnace, pass through a 12-60-mesh sieve to obtain the finished sintered flux. The finished sintered flux is matched with H0Cr19Ni12Mo2 welding wire to weld on 316 stainless steel.

[0035] Test results: The slag removal rate in the groove is 89%, the shape is good, there is no oxidation color on the surface of the deposited metal, the weld shape is beautiful, the height of the weld bead is moderate, the weld formation coefficient is 1.6, and the weld wetting angle is moderate. The properties and chemical properties of the deposited...

Embodiment 3

[0041] Stainless steel sintering flux, its mineral raw materials are composed of fused magnesia: 25%, corundum: 30%, fluorite: 15%, cryolite 3%, wollastonite: 13%, zirconia: 5%, chromium oxide green : 3%, ferrosilicon: 1%,, quartz powder: 4, ferromanganese: 1%. After mixing evenly, add 25.4% potassium sodium water glass, bake at low temperature at 150°C for 8 hours, and bake at high temperature at 850°C for 60 minutes, then cool in the furnace, and pass through a sieve of 12 to 60 mesh to obtain the finished sintered flux. The finished sintered flux is matched with H0Cr19Ni12Mo2 stainless steel welding wire, and is welded on 316 stainless steel plate.

[0042] Test results: The slag removal rate in the groove is 87%, the shape is good, the surface of the deposited metal has no oxidation color, the weld shape is beautiful, the height of the weld bead is moderate, the weld formation coefficient is 1.42, and the weld penetration angle is moderate. The properties and chemical prop...

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Abstract

The invention introduces a stainless steel sintered flux which is a baking object prepared by mixing a mixture of 20-30wt% of fused magnesite, 20-30wt% of corundum, 10-20wt% of fluorite, 1-5wt% of cryolite, 10-16wt% of aedelforsite, 1-5wt% of zirconia, 3-5wt% of chromium sesquioxide, 1-3wt% of silicoferrite with more than 74 percent of Si, 4-10wt% of quartz powder and 1-5wt% of ferromanganese with more than 78 percent of Mn and 42-45Be potassium-sodium water glass at the temperature of 20 DEG C, wherein the mass of the potassium-sodium water glass accounts for 20-30 percent of that of the mixture. The stainless steel sintered flux of the invention is matched with a corresponding welding core and has excellent weld process performance; when in welding, an electric arc is stable, the surface of a weld is white and light and has no oxidation color, and the detachability in a bevel is good; the weld has attractive molding, and the infiltration angle is moderate.

Description

technical field [0001] The invention relates to a technique in the field of welding, in particular to a stainless steel sintered flux. Background technique [0002] Due to its excellent corrosion resistance, wear resistance and high specific strength, stainless steel is widely used in aviation, navigation, atomic energy, petrochemical, synthetic fiber, architectural decoration and other fields. According to different performance requirements, stainless steel has gradually developed Martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, duplex stainless steel and precipitation hardening stainless steel. With the increase of stainless steel types, the application of stainless steel is becoming more and more extensive, and the demand for stainless steel welding consumables is also increasing. With the improvement of automation, the amount of stainless steel sintering flux has increased significantly. CN101585123A discloses a 2 Stainless steel sint...

Claims

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Application Information

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IPC IPC(8): B23K35/362
Inventor 刘鹏飞王效莲孔红雨
Owner LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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