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Hardfacing electrode and preparing method thereof

A surfacing welding rod and welding rod technology, which is applied in welding equipment, welding equipment, arc welding equipment, etc., can solve the problems of hard-to-exceed hardness index of wear-resistant surfacing welding electrodes, poor repair ability of structural parts, poor toughness, etc., and achieve excellent mechanical properties , Low production cost, good molding effect

Inactive Publication Date: 2014-08-20
CHENGDU HISUN TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The hardness index of traditional wear-resistant surfacing electrodes is difficult to exceed HRA70
Even the hardness of WC wear-resistant surfacing welding electrodes is difficult to exceed HRA85, and a small amount of WC wear-resistant surfacing welding electrodes exceeding HRA85 is high in price, poor in toughness, and poor in repairing structural parts.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: A wear-resistant surfacing electrode and its preparation method

[0023] The coating of the wear-resistant surfacing electrode of this embodiment and the welding core wrapped in the coating are characterized in that: the raw materials for preparing the coating include coating alloys, and the raw materials for preparing the coating alloys include the following weight Raw materials in parts ratio: 5 parts of C, 35 parts of Cr, 6 parts of Mn, 11.3 parts of W, 3.8 parts of Mo, 5 parts of B, and 3.8 parts of Si.

[0024] The preparation scheme of the wear-resistant surfacing electrode of the present embodiment is as follows:

[0025] 1. Weighing and dry mixing of the raw materials of the skin alloy agent: Weigh the following raw materials in weight percentages, 5 parts of C, 35 parts of Cr, 6 parts of Mn, 11.3 parts of W, 3.8 parts of Mo, 5 parts of B and 3.8 parts of Si, after weighing, mix all the raw materials of the aforementioned coating alloy agent together...

Embodiment 2

[0029] Example 2: A wear-resistant surfacing electrode and its preparation method

[0030] The wear-resistant surfacing welding electrode of this embodiment includes a coating and a welding core wrapped in the coating. It is characterized in that: the raw material for preparing the coating includes a coating alloy agent, and the preparation raw materials for the coating alloy agent include the following: Raw materials in parts by weight: 6.5 parts of C, 46 parts of Cr, 8 parts of Mn, 30 parts of W, 8 parts of Mo, 6 parts of B, and 5 parts of Si.

[0031] The preparation scheme of the wear-resistant surfacing electrode of the present embodiment is as follows:

[0032] 1. Weighing and mixing of the raw materials of the coating alloy agent: Weigh the following raw materials in weight percentages, 6.5 parts of C, 46 parts of Cr, 8 parts of Mn, 30 parts of W, 8 parts of Mo, 6 parts of B, 5 parts of Si, after weighing, mix all the aforementioned coating alloy agent raw materials to...

Embodiment 3

[0036] Example 3: A wear-resistant surfacing electrode and its preparation method

[0037] The wear-resistant surfacing welding electrode of this embodiment includes a coating and a welding core wrapped in the coating. It is characterized in that: the raw material for preparing the coating includes a coating alloy agent, and the preparation raw materials for the coating alloy agent include the following: Raw materials in parts by weight: C is 8.8 parts, Cr is 57.5 parts, Mn is 10.5 parts, W is 50 parts, Mo is 12 parts, B is 7.5 parts, and Si is 6.3 parts.

[0038] The preparation scheme of the wear-resistant surfacing electrode of the present embodiment is as follows:

[0039] 1. Weighing and dry mixing of the raw materials of the skin alloy agent: Weigh the following raw materials in weight percentages, 8.8 parts of C, 57.5 parts of Cr, 10.5 parts of Mn, 50 parts of W, 12 parts of Mo, 7.5 parts of B and 6.3 parts of Si, after weighing, mix all the aforementioned raw material...

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Abstract

The invention provides a hardfacing electrode and a preparing method thereof and relates to the field of welding. The hardfacing electrode comprises a coating and a core wire wrapped in the coating. The preparing raw materials of the coating comprise coating alloying agents. The preparing raw materials of the coating alloying agents comprise, by weight, 5-8.8 parts of C, 35-57.5 parts of Cr, 6-10.5 parts of Mn, 11.3-50 parts of W, 3.8-12 parts of Mo, 5-7.5 parts of B and 3.8-6.3 parts of Si. The invention further provides the preparing method of the hardfacing electrode. The preparing method mainly comprises the steps of raw material weighing, material mixing, pressing, airing, low-temperature drying and high-temperature drying. The hardfacing electrode obtained through the method has the advantages that deposited metal chemical component consistency is good, a formed overlaying layer is high in hardness, and residues can be easily removed.

Description

technical field [0001] The invention relates to the field of welding, in particular to a wear-resistant surfacing electrode and a preparation method thereof. Background technique [0002] The rapid development of the national economy and the continuous progress of science and technology have put forward higher and higher requirements for wear-resistant materials. There are many ways to improve the surface wear resistance of materials: such as thermal spraying, ion plating, electroplating and surfacing. These methods have their own advantages and disadvantages. The disadvantages of the first few methods are that the coating is thin, the required equipment is complicated, and some coatings also need to undergo complicated post-processing. Overlay welding is a simple and quick method commonly used to enhance the wear resistance of materials and repair wear-resistant parts. [0003] The hardness index of traditional wear-resistant surfacing electrodes is difficult to exceed HRA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365B23K9/04
CPCB23K35/0266B23K35/3086B23K35/3093B23K35/404
Inventor 蒲毅智
Owner CHENGDU HISUN TECH IND
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