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A kind of silicon-calcium type sintered flux and preparation method thereof

A technology of sintering flux and silicon calcium, which is applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems of affecting the quality of welds, easy to break, and insufficient impact toughness, etc., to achieve easy melting, prevent environmental pollution, and prevent raw materials churn effect

Active Publication Date: 2022-04-19
济南市金材焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the related technologies mentioned above, the inventor believes that: when the sintered flux welds steel in a low-temperature environment, due to the fast welding speed of submerged arc welding, the existing sintered flux cannot meet the high-speed welding requirements, and the weld seam is prone to fracture due to insufficient impact toughness at low temperature , thus affecting the weld quality

Method used

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  • A kind of silicon-calcium type sintered flux and preparation method thereof
  • A kind of silicon-calcium type sintered flux and preparation method thereof

Examples

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Effect test

preparation example 1

[0038] S1, nickel chloride solution, ethylenediamine solution, sodium hydroxide solution, potassium borohydride solution, sodium titanate solution are mixed to make plating solution, nickel chloride concentration is 1100g / L, ethylenediamine concentration is in the plating solution 100ml / L, the concentration of sodium hydroxide is 50g / L, the concentration of potassium borohydride is 25g / L, and the concentration of sodium titanate is 26g / L;

[0039] S2. Place the sample base material in the plating solution. The sample base material is made of 7Cr7Mo2V2Si alloy steel, the shape is plate-like, and the size of the plate is 150cm×20cm×3cm.

[0040] After S3, 2 hours, a plate coated with a nickel-titanium-boron alloy coating is obtained;

[0041] S4. Grinding the plate obtained in S3 with a nickel grinding wheel, and grinding the alloy coating into alloy powder.

preparation example 2

[0043] S1, nickel chloride solution, ethylenediamine solution, sodium hydroxide solution, potassium borohydride solution, sodium titanate solution are mixed to make plating solution, nickel chloride concentration is 1325g / L, ethylenediamine concentration is 1325g / L in the plating solution 100ml / L, the concentration of sodium hydroxide is 50g / L, the concentration of potassium borohydride is 25g / L, and the concentration of sodium titanate is 52.5g / L;

[0044] S2. Place the sample base material in the plating solution. The sample base material is made of 7Cr7Mo2V2Si alloy steel, the shape is plate-like, and the size of the plate is 150cm×20cm×3cm.

[0045] After S3, 2 hours, a plate coated with a nickel-titanium-boron alloy coating is obtained;

[0046] S4. Grinding the plate obtained in S3 with a nickel grinding wheel, and grinding the alloy coating into alloy powder.

preparation example 3

[0048]S1, nickel chloride solution, ethylenediamine solution, sodium hydroxide solution, potassium borohydride solution, sodium titanate solution are mixed to make plating solution, nickel chloride concentration is 1325g / L, ethylenediamine concentration is 1325g / L in the plating solution 100ml / L, the concentration of sodium hydroxide is 50g / L, the concentration of potassium borohydride is 15g / L, and the concentration of sodium titanate is 52.5g / L;

[0049] S2. Place the sample base material in the plating solution. The sample base material is made of 7Cr7Mo2V2Si alloy steel, the shape is plate-like, and the size of the plate is 150cm×20cm×3cm.

[0050] After S3, 2 hours, a plate coated with a nickel-titanium-boron alloy coating is obtained;

[0051] S4. Grinding the plate obtained in S3 with a nickel grinding wheel, and grinding the alloy coating into alloy powder.

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Abstract

The application relates to the field of flux, and specifically discloses a silicon-calcium type sintered flux and a preparation method thereof. A calcium-silicon type sintered flux includes 1-5 parts of manganese ore, 5-15 parts of bauxite, 15-25 parts of magnesia, 10-14 parts of fluorite, 1-5 parts of ferrosilicon alloy, 26-28 parts of feldspar, silicon 2-6 parts of limestone, 12-20 parts of clay, 18-32 parts of potassium sodium water glass, 2-4 parts of nickel-titanium-boron alloy; the preparation method is: stir the raw materials evenly; granulate into balls after the stirring is completed, After being balled, it is dried; after drying, it is sieved, and those that meet the particle size enter the sintering furnace for sintering, and the semi-products that do not meet the particle size are re-crushed and screened; the sintered material enters for cooling, and the cooled material enters the storage The silo is finally packaged and put into storage. A calcium-silicon type sintered flux of the present application can be used for steel welding in a low-temperature environment, and has the advantage of improving the impact toughness of the weld seam at low temperature.

Description

technical field [0001] This application relates to the field of flux, more specifically, it relates to a calcium-silicon type sintered flux and its preparation method. Background technique [0002] With the development of modern industry and the improvement of automation level, submerged arc automatic welding is widely used in the production of large-scale welding structures such as pipelines, ships, boilers, and pressure vessels due to its high degree of automation, fast welding speed, and stable weld performance. application. For submerged arc welding, in addition to the welding wire, the performance of the weld and the quality of the weld mainly depend on the flux. [0003] Sintered flux is a high-quality, high-efficiency, energy-saving, and environmentally friendly flux. The prepared wet flux is processed into the required particles, and calcined at a high temperature of 750-1000 ° C to form fine particles, that is, sintered flux. Sintered flux is smokeless, odorless, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/36B23K35/362
CPCB23K35/3607B23K35/362
Inventor 李长斌尹兆杰王玉波
Owner 济南市金材焊接材料有限公司