Multi-purpose submerged arc sintered flux for alloy steel and preparation method thereof

A technology for sintering flux and alloy steel, which is applied in the direction of arc welding equipment, welding equipment, welding equipment, etc., can solve the problems of poor process performance and mechanical performance of the weld, low energy consumption, etc., and achieve excellent slag removal performance, smoke and dust Small amount, effect of improving surface smoothness

Inactive Publication Date: 2019-01-04
郑州凤凰新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of modern industry, the requirements for materials are getting higher and higher. In order to meet various harsh conditions of use, the research and development of various new materials have received great attention, and the corresponding welding materials have also received corresponding attention. The product structure and varieties of welding materials have undergone great changes due to the development of the country, and new and efficient welding materials have made great progress and have been widely used; sintered flux refers to a high-quality, high-efficiency, energy-saving, and environmentally friendly flux. Refers to processing the prepared wet material flux into the required particles, calcining at a high temperature of 750-1000°C to form fine particles, that is, to obtain sintered flux, which is smokeless, odorless, arc-free and spatter-free during welding , the manufacturing process has no environmental pollution, low energy consumption, and sufficient utilization of raw materials, which is in line with the national industrial development policy. However, the existing sintered flux welds suitable for alloy steel have too high hydrogen content, which leads to the process performance and mechanical failure of the welds. poor performance

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  • Multi-purpose submerged arc sintered flux for alloy steel and preparation method thereof

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Effect test

Embodiment 1

[0022] A multi-purpose alloy steel submerged arc sintering flux, which is prepared from dry powder of various components and binder water glass, the dry powder is composed of the following percentages of raw materials: SiO 2 15%, MnO 8%, CaF 2 22%, Al 2 o 3 25%, MgO 27%, silicon-calcium alloy powder 3%.

[0023] A preparation method of multi-purpose alloy steel submerged arc sintering flux, mixing dry powder evenly in proportion, adding water glass for wet mixing and stirring evenly; granulating the evenly stirred mixture, and the size of the granulation is 4-40 mesh ; The granulated raw materials are dried at 400°C and then sieved, and the sieved size is 16-40 mesh; the sifted raw materials are sintered at a high temperature of 750°C for 30 minutes in an oxidizing atmosphere, and then cooled Cool in the furnace to below 35°C and sieve into 10-40 mesh. It is used for submerged arc welding of low carbon steel and low alloy steel, and has a good welding process in the appl...

Embodiment 2

[0025] A multi-purpose alloy steel submerged arc sintering flux, which is prepared from dry powder of various components and binder water glass, the dry powder is composed of the following percentages of raw materials: SiO 2 18%, MnO 5%, CaF 2 30%, Al 2 o 3 20%, MgO 25%, silicon-calcium alloy powder 2%.

[0026] A preparation method of multi-purpose alloy steel submerged arc sintering flux, mixing dry powder evenly in proportion, adding water glass for wet mixing and stirring evenly; granulating the evenly stirred mixture, and the size of the granulation is 4-40 mesh ; The granulated raw materials are dried at 500°C and then sieved, and the sieved size is 16-40 mesh; the sieved raw materials are sintered at a high temperature of 900°C for 30 minutes in an oxidizing atmosphere, and then cooled Cool in the furnace to below 35°C and sieve into 10-40 mesh. It is used for submerged arc welding of low carbon steel and low alloy steel, and has a good welding process in the appl...

Embodiment 3

[0028] A multi-purpose alloy steel submerged arc sintering flux, which is prepared from dry powder of various components and binder water glass, the dry powder is composed of the following percentages of raw materials: SiO 2 16%, MnO 6%, CaF 2 25%, Al 2 o 3 22%, MgO 30%, silicon-calcium alloy powder 1%.

[0029] A preparation method of multi-purpose alloy steel submerged arc sintering flux, mixing dry powder evenly in proportion, adding water glass for wet mixing and stirring evenly; granulating the evenly stirred mixture, and the size of the granulation is 4-40 mesh ; The granulated raw materials are dried at 550°C and then sieved, and the sieved size is 16-40 mesh; the sieved raw materials are sintered at a high temperature of 850°C in an oxidizing atmosphere for 30 minutes, and then cooled Cool in the furnace to below 35°C and sieve into 10-40 mesh. It is used for submerged arc welding of low carbon steel and low alloy steel, and has a good welding process in the appl...

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Abstract

The invention belongs to the technical field of welding materials, and particularly relates to multi-purpose submerged arc sintered flux for alloy steel and a preparation method thereof. The multi-purpose submerged arc sintered flux is prepared from various compositions of dry powder and binder sodium silicate, and the dry powder is prepared from the following raw materials in percentage: 15-18% of SiO2, 5-8% of MnO, 22-30% of CaF2, 20-25% of Al2O3, 25-30% of MgO, and 1-3% of alloy powder. According to the prepared sintered flux, the viscosity, surface tension and fluidity of slag are well adjusted, when the flux is used for welding, the welding process is stable, the amount of smoke and dust is small, splash is small and the deslagging performance is excellent.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a multipurpose alloy steel submerged arc sintering flux and a preparation method thereof. Background technique [0002] With the development of modern industry, the requirements for materials are getting higher and higher. In order to meet various harsh conditions of use, the research and development of various new materials have received great attention, and the corresponding welding materials have also received corresponding attention. The product structure and varieties of welding materials have undergone great changes due to the development of the country, and new and efficient welding materials have made great progress and have been widely used; sintered flux refers to a high-quality, high-efficiency, energy-saving, and environmentally friendly flux. Refers to processing the prepared wet material flux into the required particles, calcining at a high tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K103/04B23K9/18
CPCB23K9/18B23K35/3602B23K35/3605B23K35/362
Inventor 岳喜江张红卫张林江
Owner 郑州凤凰新材料科技有限公司
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