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A welding rod for brazing process

A brazing process and welding rod technology, which is applied in the field of automatic mold processing, can solve the problems of spending a lot of energy and cost, demanding raw material processing, and low mechanical properties of welds, so as to improve the performance of slag removal, promote the reduction of slag inclusions, Effect of improving anti-porosity performance

Active Publication Date: 2021-04-02
HUBEI TRI RING FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing patent number is CN201210547546.X, and the Chinese invention patent titled "Special welding rod for low yield strength anti-hydrogen-induced cracking steel and its production method" discloses a special electrode for low-yield strength anti-hydrogen-induced cracking steel. Raw material processing is demanding, the operation is complicated, and the pretreatment process of raw materials before production requires a lot of energy and cost, and the produced electrodes have obvious slag inclusions, and the mechanical properties of the welds are not high

Method used

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  • A welding rod for brazing process
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Embodiment 1

[0024] The present invention specifically provides a kind of welding rod used in the brazing process. Specifically, the implementation method of the preparation of the welding rod is as follows: the welding core components (weight fraction): C≦0.020%, Si≦0.050%, Mn0.40-0.60 %, S≦0.006%, P≦0.006%, Cr≦0.05%, Mo≦0.05%, Ni≦0.05%, Ti≦0.05%, Cu≦0.05%, As≦0.001% are refined into welding core in supporting steel plants , Derust the welding core with emery cloth, degrease with acetone, etc., and at the same time dispense the powder of the pharmaceutical coating component according to the requirements and composition of the powder formulation list. The coating composition and proportion are: marble: 100 parts, fluorite: 60 Parts, silicate: 10 parts, aluminum fluoride: 5 parts, multi-component alloy agent: 25 parts, stir and sieve the powder of the coating component, mix the various ingredients as evenly as possible, and then add an appropriate amount Soda water glass and potassium water...

Embodiment 2

[0031] The present invention specifically provides a welding rod for brazing process. Specifically, the preparation method of the welding rod is as follows: the welding core components: C≦0.020%, Si≦0.050%, Mn0.40-0.60%, S≦ 0.006%, P≦0.006%, Cr≦0.05%, Mo≦0.05%, Ni≦0.05%, Ti≦0.05%, Cu≦0.05%, As≦0.001%. Use emery cloth to remove rust, use acetone to remove oil, and at the same time, dispense the powder of the drug skin component according to the requirements and composition of the powder preparation list. The drug skin component and ratio are: marble: 100 parts, fluorite: 100 parts, silicic acid Salt: 15 parts, aluminum fluoride: 10 parts, multi-component alloy agent: 35 parts, stir and sieve the powder of the coating component to mix the various components as evenly as possible, and then add an appropriate amount of sodium silicate and potassium silicate to make paint. Put the paint into the double-deposited electrode coating press machine, press the electrode, and use it afte...

Embodiment 3

[0038]The present invention specifically provides a welding rod for brazing process. Specifically, the preparation method of the welding rod is as follows: the welding core components: C≦0.020%, Si≦0.050%, Mn0.40-0.60%, S≦ 0.006%, P≦0.006%, Cr≦0.05%, Mo≦0.05%, Ni≦0.05%, Ti≦0.05%, Cu≦0.05%, As≦0.001%. Use emery cloth to remove rust, use acetone to remove oil, and at the same time dispense the powder of the drug skin component according to the requirements and composition of the powder preparation list. The drug skin component and ratio are: marble: 100 parts, fluorite: 80 parts, silicic acid Salt: 12 parts, aluminum fluoride: 8 parts, multi-component alloy agent: 30 parts, stir and sieve the powder of the drug coating component to mix the various components as evenly as possible, and then add an appropriate amount of sodium silicate and potassium silicate to make paint. Put the paint into the double-deposited electrode coating press machine, press the electrode, and use it aft...

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Abstract

The invention provides a novel welding rod for a brazing process. The novel welding rod for the brazing process comprises a coating and a core wire; the coating wraps the core wire; sodium silicate and potassium silicate serve as adhesives; the coating adheres to the periphery of the core wire; according to components and the matching ratio, a, the components of the coating comprise 100 parts of marble, 60-100 parts of fluorite, 10-15 parts of silicate, 5-10 parts of aluminum fluoride and 25-35 parts of a multi-component alloy agent; and components of the core wire comprise smaller than or equal to 0.020% of C, smaller than or equal to 0.050% of Si, 0.40-0.60% of Mn, smaller than or equal to 0.006% of S, smaller than or equal to 0.006% of P, smaller than or equal to 0.05% of Cr, smaller than or equal to 0.05% of Mo, smaller than or equal to 0.05% of Ni, smaller than or equal to 0.05% of Ti, smaller than or equal to 0.05% of Cu, and smaller than or equal to 0.001% of As. The laser brazing welding rod little in splashing, low in slag inclusion and good in weld joint mechanical performance is researched and developed.

Description

technical field [0001] The invention relates to the technical field of automatic mold processing, in particular to a welding rod used in a brazing process. Background technique [0002] The electrode is mainly composed of a coating and a welding core. The coating is composed of minerals, ferroalloys and metal powders, chemical products and organic substances. In the process performance of stainless steel electrodes, the redness and cracking of the electrode coating not only causes the waste of electrodes, but also affects the brazing quality. In some cases, such as changes in raw materials, special electrode design and electrode formula adjustment, the problem of slag removal of electrodes is also reflected from time to time. Generally, the comprehensive process level of electrodes with poor slag removal is not high. [0003] The existing patent number is CN201210547546.X, and the Chinese invention patent titled "Special welding rod for low yield strength anti-hydrogen-indu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/36B23K35/30B23K35/14
Inventor 张运军武建祥张君妮余国林胡洪斌常伟丁连军刘红兵倪权斌
Owner HUBEI TRI RING FORGING
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