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Functional welding paste and preparation method thereof

A welding coating and functional technology, applied in the direction of coating, etc., can solve the problems of affecting material performance and low temperature resistance

Active Publication Date: 2015-07-15
广东一三七化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of adopting such a technology, there are higher requirements for the welding coating. Due to the low temperature resistance of the general coating, harmful impurities are brought in during the high-temperature combustion process, which affects the performance of the material at the weld.

Method used

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  • Functional welding paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: The functional welding coating of the present invention comprises the following components (mass percentage content):

[0030] Silicone resin containing double bonds 3%;

[0031] Monoethylene glycol butyl ether acetate 20%;

[0032] Silica 5%;

[0033] Leveling agent for welding materials 20%;

[0034] Phosphoric acid 0.3%;

[0035] Potassium persulfide 5%;

[0036] Octanol 20%;

[0037] Aluminum powder 4%;

[0038] Talc 1.7%;

[0039] Calcium Fluoride 4%;

[0040] Titanium dioxide 15%;

[0041] Calcium carbonate 1%;

[0042] Cerium fluoride 1%.

[0043] The above-mentioned leveling agent for welding materials is a leveling agent including existing materials. In this embodiment, according to the composition of the steel material, the cold-rolled steel plate is preferably RA-1 wet leveling agent.

[0044] The aforementioned silicon dioxide is fumed silicon dioxide with a spherical shape and a diameter of 0.5-10 μm.

[0045] The above-mentioned dou...

Embodiment 2

[0051] Example 2: The functional welding coating of the present invention comprises the following components (mass percentage content):

[0052] Silicone resin containing double bonds 40%;

[0053] Monoethylene glycol butyl ether acetate 20%;

[0054] Silica 1%;

[0055] Leveling agent for welding materials 10%;

[0056] Phosphoric acid 2%;

[0057] Potassium persulfide 1%;

[0058] Octanol 10%;

[0059] Aluminum powder 1%;

[0060] Talc powder 0.5%;

[0061] Calcium Fluoride 1%;

[0062] Titanium dioxide 10%;

[0063] Calcium carbonate 2%;

[0064] Cerium Fluoride 1.5%.

[0065] The above-mentioned leveling agent for welding materials is a leveling agent including existing materials. In this embodiment, a thin sheet is cold and hot pressed according to the composition of the metal material, and it is preferably PG-325 leveling agent.

[0066] The aforementioned silicon dioxide is fumed silicon dioxide with a spherical shape and a diameter of 0.5-10 μm.

[0067]T...

Embodiment 3

[0070] Example 3: The functional welding coating of the present invention comprises the following components (mass percentage content):

[0071] Silicone resin containing double bonds 20%;

[0072] Monoethylene glycol butyl ether acetate 30%;

[0073] Silica 10%;

[0074] Leveling agent for welding materials 10%;

[0075] Phosphoric acid 2%;

[0076] Potassium persulfide 1%;

[0077] Octanol 10%;

[0078] Aluminum powder 2%;

[0079] Talc powder 1%;

[0080] Calcium Fluoride 1%;

[0081] Titanium dioxide 10%;

[0082] Calcium carbonate 1%;

[0083] Cerium fluoride 2%.

[0084] The above-mentioned leveling agent for welding materials is a leveling agent including existing materials. In this embodiment, according to the composition of the steel material, the cold-rolled steel is preferably a wet leveling agent of Wuhan Sanheying Industry and Trade Development Co., Ltd.

[0085] The aforementioned silicon dioxide is fumed silicon dioxide with a spherical shape and a ...

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Abstract

The invention discloses a functional welding paste. The functional welding paste comprises the following components in percentage by mass: 3-40% of organic silicon resin containing double bonds, 20-40% of ethylene glycol monobutyl ether acetate, 1-10% of silicon dioxide, 10-20% of a leveling agent for a welding material, 0.3-5% of phosphoric acid, 1-5% of potassium persulfide, 10-20% of octyl alcohol, 1-4% of aluminum powder, 0.5-2% of hydrated magnesium silicate, 1-4% of calcium fluoride, 1-15% of titanium dioxide, 1-4% of calcium carbonate and 0.1-2% of cerium fluoride. The invention also discloses a preparation method of the functional welding paste. The fracture mechanical property strength of a welding joint of a weldment after using the functional welding paste can be up to 700MPa; the coating corrosion resistance can be up to 420h (salt spray test); the adhesive force is of grade 1 (one hundred grid test); and the Brinell hardness is 60HBW.

Description

technical field [0001] The invention belongs to the technical field of welding coatings, and in particular relates to a functional welding coating and a preparation method thereof. Background technique [0002] Under the existing excellent welding technology conditions, people have higher and higher requirements on the welding efficiency of welding technology, and the welding wire is changed from the original one welding wire to welding with multiple welding wires at the same time. To realize this technology, it is necessary to solve the problem of optimizing the high-temperature shape of the welding arc and the material of the weld. The traditional method is to rely on the material properties of the welding wire itself to improve the welding performance. However, this method has great limitations and cannot be adapted to the welding of welds of various materials. By adding alloying elements to the welding wire coating and introducing appropriate alloying elements into the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/07C09D7/12
Inventor 高延敏韩莲季燕青周超方成富
Owner 广东一三七化工科技有限公司
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