Aluminum-titanium acidic sintered flux and preparation method thereof

A sintered flux and acidic technology, applied in welding equipment, manufacturing tools, welding media, etc., can solve problems such as unstable arc combustion, high fluorine ionization potential, and affecting welding quality, and achieve simple manufacturing methods, uniform components, and welding Excellent quality results

Active Publication Date: 2021-02-26
济南市金材焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned aluminum-titanium type sintering flux contains a large amount of fluorite powder, and fluorine is separated in the arc atmosphere. The ionization potential of fluorine is very high, and it is not easy to ionize. However, the outermost layer of fluorine has seven electrons, and it is easy to get electrons to become negative ions. When positively connected, fluorine ions will move into the molten pool and increase splashing, resulting in unstable arc combustion and affecting welding quality

Method used

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  • Aluminum-titanium acidic sintered flux and preparation method thereof
  • Aluminum-titanium acidic sintered flux and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0045] A kind of alkalinity fusing point regulator, adopts following steps to prepare:

[0046] (1) Batching: weigh the following components by weight percentage, dead burnt magnesia 55%, wollastonite powder 30%, mass concentration are 50% potassium carbonate solution 5% and potassium feldspar 10%;

[0047] (2) under stirring state, potassium carbonate solution is sprayed on the surface of dead burnt magnesia with spray state;

[0048] (3) Add wollastonite powder and potassium feldspar, stir to obtain a blend;

[0049] (4) The blend is put into a granulator, and the water mist spray flow rate is 0.25L / min, and granulated to obtain spherical particles;

[0050] (5) Spherical particles are calcined at a high temperature of 750° C. until the water content is lower than 1%, to prepare an alkalinity melting point regulator.

preparation example 2

[0052] An alkalinity melting point regulator, the difference from the raw material preparation example 1 is that the formula content is different, and the following components are weighed in percentages by weight: 60% of dead-burned magnesia, 25% of wollastonite powder, 7% of potassium carbonate solution and Potassium feldspar 8%.

preparation example 3

[0054] An alkalinity melting point regulator, the difference from the raw material preparation example 1 is that the formula content is different, and the following components are weighed in percentages by weight: 70% of dead-burned magnesia, 20% of wollastonite powder, 5% of potassium carbonate solution and Potassium feldspar 5%.

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Abstract

The invention relates to an aluminum-titanium type acid sintered flux and a preparation method thereof. The sintered flux is mainly prepared from mineral dry powder and a binder, and the mineral dry powder is prepared from, by weight, 10-18% of manganese ore, 45-52% of bauxite, 9-14% of titanium dioxide, 6-12% of dead burned magnesia, 8-12% of fluorite powder, 1-3% of ferrosilicon alloy, 2-6% of wollastonite and 2-5% of ferromanganese alloy; and the binder accounts for 20-30% of the total weight of the mineral dry powder components. According to the aluminum-titanium acidic sintered flux and the preparation method thereof, the bauxite, manganese ore and titanium dioxide are used as main components, the usage amount of fluorite powder is reduced, and the dead burned magnesia and the ferromanganese alloy are added to generate a synergistic effect, so that the sintered flux with high strength, excellent low-temperature-resistant toughness, stable arc combustion and excellent welding quality is prepared; and the preparation method comprises the processes of mixing, granulating and sintering, and is simple, efficient, energy-saving and environment-friendly.

Description

technical field [0001] The present application relates to the technical field of sintered flux, in particular to an aluminum-titanium acidic sintered flux and a preparation method thereof. Background technique [0002] SJ501 is a general-purpose aluminum-titanium acid sintered flux on the market, with an alkalinity of about 0.5-0.8, dark brown round particles, and a particle size of 10-60 mesh. It can be used for both AC and DC. When welding with DC power supply, the welding wire is connected to the positive electrode, the arc is stable, the weld shape is beautiful, the slag is easy to remove, and the deposited metal has excellent mechanical properties. It is mainly used for low carbon steel, low alloy steel, and some low Welding occasions for alloy high-strength steel. At present, the aluminum-titanium acid sintered fluxes on the market have high strength welds, but the welds have poor low-temperature toughness. [0003] The existing Chinese invention patent application p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K35/40
CPCB23K35/362B23K35/40
Inventor 尹兆杰李长斌张才林
Owner 济南市金材焊接材料有限公司
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