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Preparation method for welding agents

A technology of welding powder and preparation steps, which is applied in the field of preparation of welding powder, can solve the problems of easy release of toxic gas, weak anti-rust performance, and low strength, and achieve the effect of simple preparation steps, strong anti-rust performance and high welding strength

Inactive Publication Date: 2017-01-18
常州市鼎升环保科技有限公司
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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: Aiming at the disadvantages of low welding strength of current flux, easy occurrence of spattering during welding, easy release of toxic gas, and weak rust resistance, a method of washing rubber grass roots and mixing them with distilled water for steaming is provided. Remove impurities, filter to obtain filter residue, mix with cyclohexane, etc., grind repeatedly, extract rubber substances, and then remove solvent to obtain solder auxiliary materials for use, then select aluminum ash water to remove impurities, and then ball mill with topaz, etc. Stir and react under acidic conditions and under the protection of nitrogen, filter to obtain the solder base material, and finally mix and grind with spare solder auxiliary materials, sieve and dry to obtain the solder powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] First, take the rubber grass root, clean its surface, mix the washed rubber grass root with distilled water evenly according to the mass ratio of 1:3, put it into a cooking pot, set the temperature at 100°C, cook for 1 hour, and filter while it is hot. Collect the filter residue, in parts by weight, get 40 parts of filter residue, 32 parts of cyclohexane, 23 parts of acetone, 18 parts of mass fraction of 10% phosphoric acid solution and 6 parts of amino acid chelated calcium, mix uniformly to obtain the mixture; Put the mixture into a stone mill for refining, mix the obtained slurry with the residue after refining, and perform refining, repeat this 3 times, put the final collected slurry into a rotary evaporator to remove acetone and ring Hexane, collect the residue, use ammonia water with a mass fraction of 20% to adjust the pH of the residue to neutral, and obtain welding flux auxiliary materials for future use; according to the mass ratio of 1:3, put aluminum ash and ...

example 2

[0019] First, take the rubber grass root, clean its surface, mix the washed rubber grass root with distilled water evenly according to the mass ratio of 1:3, put it into a cooking pot, set the temperature at 103°C, cook for 2 hours, and filter while it is hot. Collect the filter residue, in parts by weight, get 43 parts of filter residue, 34 parts of cyclohexane, 25 parts of acetone, 19 parts of mass fraction of 10% phosphoric acid solution and 7 parts of amino acid chelated calcium, mix uniformly to obtain the mixture; Put the mixture into a stone mill for refining, mix the obtained slurry with the residue after refining, and perform refining, repeat this 5 times, and put the final collected slurry into a rotary evaporator to remove acetone and rings. Hexane, collect the residue, use ammonia water with a mass fraction of 20% to adjust the pH of the residue to neutral, and obtain welding flux auxiliary materials for future use; according to the mass ratio of 1:3, put aluminum a...

example 3

[0022] First, take the rubber grass root, clean its surface, mix the washed rubber grass root with distilled water evenly according to the mass ratio of 1:3, put it into a cooking pot, set the temperature at 105°C, cook for 2 hours, and filter while it is hot. Collect the filter residue, in parts by weight, get 45 parts of filter residue, 36 parts of cyclohexane, 26 parts of acetone, 21 parts of mass fraction of 10% phosphoric acid solution and 9 parts of amino acid chelated calcium, mix uniformly to obtain the mixture; The mixture is put into a stone mill for refining, and the obtained slurry is mixed with the residue after refining, and then refined, and this is repeated 6 times, and the finally collected slurry is put into a rotary evaporator to remove acetone and rings. Hexane, collect the residue, use ammonia water with a mass fraction of 20% to adjust the pH of the residue to neutral, and obtain welding flux auxiliary materials for future use; according to the mass ratio ...

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Abstract

The invention discloses a preparation method for welding agents and belongs to the technical field of welding agent preparation. The preparation method for the welding agents comprises the steps that taraxacum kok-saghyz roots are cleaned and mixed with distilled water to be cooked so as to remove impurities, and filter residues are obtained through filtration; the filter residues, cyclohexane and the like are repeatedly ground into thick liquid after being evenly mixed, rubber materials in the thick liquid are extracted, solvents are removed, and welding agent auxiliary materials are obtained for standby application; then aluminum ash is subjected to water separation for purification, the aluminum ash, flinder diamonds and the like are subjected to ball milling and stirring reaction in the acidic condition and under the protection of nitrogen, and welding agent base materials are prepared through filtration; and finally the welding agent base materials, the standby welding agent auxiliary materials and the like are mixed, ground, sieved and dried to obtain the welding agents. According to the preparation method for the welding agents, the preparation steps are easy, the obtained welding agents are high in welding strength, no spatter phenomenon occurs and no toxic gas is released during welding, and the welding agents are high in rust resistance.

Description

technical field [0001] The invention relates to a preparation method of welding flux, which belongs to the technical field of welding flux preparation. Background technique [0002] Soldering flux, also called exothermic flux, is a metal mixture (powder) for exothermic welding composed of metal oxides and aluminum powder in an appropriate proportion; exothermic welding uses the oxidation between metal oxides and aluminum Reduction reaction (replacement reaction), a method that releases a large amount of heat to generate high-temperature molten metal for conductor welding. Joints produced by exothermic welding are called exothermic welded joints. A chemical mixture used for welding or brazing, usually in the form of granules, powders, or pastes. It can be coated on the outside of the solder to make a welding rod, and can also be filled in the inside of the solder to make a flux-cored wire. Melting on the solder joints during welding, on the one hand, it protects from furth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 许斌邹宇帆邹玉
Owner 常州市鼎升环保科技有限公司
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