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Novel anti-silt wearing wear-resistant bead welding rod

A surfacing welding electrode and sediment technology, which is applied in welding equipment, welding medium, welding equipment, etc., can solve the problems of poor comprehensive performance of mechanical wear resistance and corrosion resistance, and achieve the advantages of not easy to roll off, good welding performance, and improved compactness Effects on performance and wear resistance

Active Publication Date: 2015-08-05
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to propose a new type of anti-sediment wear-resistant surfacing welding that can solve these two problems at the same time in view of the shortcomings of the current anti-sediment surfacing welding electrode that has poor mechanical wear resistance and corrosion resistance. welding rod

Method used

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  • Novel anti-silt wearing wear-resistant bead welding rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weld core: diameter Ф3.2mm 1Cr13 stainless steel

[0024] Skin formula:

[0025] Marble 40%,

[0026] Fluorite 25%;

[0027] Rutile 9%;

[0028] Zircon 5%;

[0029] Potassium feldspar 5%;

[0030] Ferrochromium nitride 4%;

[0031] Titanium iron 12%. Preparation methods such as figure 1 As shown, the thickness of the coating is 1.5-2.0mm, and the average hardness of the electrode surfacing layer is HRC45.

Embodiment 2

[0033] Weld core: diameter Ф4.0mm 2Cr13 stainless steel

[0034] Skin formula:

[0035] Marble 45%,

[0036] Fluorite 20%;

[0037] Rutile 6%;

[0038] Zircon 4%;

[0039] Potassium feldspar 4%;

[0040] Ferrochromium nitride 6%;

[0041] Titanium iron 15%. The preparation method is the same as in Example 1, the thickness of the coating is 1.7-2.2mm, and the average hardness of the electrode surfacing layer is HRC50.

Embodiment 3

[0043] Weld core: diameter Ф5.0mm 2Cr13 stainless steel

[0044] Skin formula:

[0045] Marble 30%,

[0046] Fluorite 30%;

[0047] Rutile 4%;

[0048] Zircon 3%;

[0049] Potassium feldspar 3%;

[0050] Ferrochromium nitride 10%;

[0051] Titanium iron 20%. The preparation method is the same as in Example 1, wherein the thickness of the coating is 2.0-2.5mm, and the average hardness of the electrode surfacing layer is HRC55.

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Abstract

The invention discloses an anti-silt wearing wear-resistant bead welding rod, composed of a stainless 1Cr13 or 2Cr13 Martensite core wire and a medicine skin covering the surface of the core wire by a binder, wherein the medicine skin component comprises the following components in percentages by weight: 30-45% of marble, 20-30% of fluorite, 4-9% of fluorite, 3-5% of zircon sand, 3-5% of potassium feldspar, 4-10% of nitrided ferrochrome and 12-20% of ferrotitanium. The welding rod provided by the invention is scientific and reasonable in formula and low in costs, microalloying Ti and N element are subjected to metal transferring to a bead welding layer by a welding rod medicine skin, so that uniform and tiny TiC and TiN particles are separated from the metal of the bead welding layer, the hard particles are high in rigidity, keeps well combination with the substrate, improves hardness and toughness of the bead welding layer, and also ensures the good corrosion resistance, has the advantages of welding in full positions, and being good in anti-pore capacity.

Description

technical field [0001] The invention relates to an anti-sediment wear-resistant surfacing welding electrode, which belongs to the technical field of surface engineering materials and is suitable for surface modification, composite manufacturing and remanufacturing of parts damaged by sand wear in hydraulic machinery, reamers and other equipment. . Background technique [0002] In hydraulic machinery, reamers and other equipment are seriously damaged due to sand wear, and at the same time, the damage is aggravated by corrosion, resulting in great economic losses and energy losses. Through surfacing welding technology, a layer of hard surface alloy is deposited on the damaged part of the equipment for immediate repair, which can restore or even improve the original wear resistance of the worn parts. Electrode surfacing has the advantages of flexible and convenient operation, all-position welding and good welding quality, and has been widely used in the composite manufacturing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365B23K35/40B23K9/04
CPCB23K9/048B23K35/0261B23K35/3602B23K35/365B23K35/404
Inventor 杨可许红祥杨克廖海龙包晔峰
Owner HOHAI UNIV CHANGZHOU
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