Unlock instant, AI-driven research and patent intelligence for your innovation.

Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire

A technology of alloy powder and support roll, which is applied in welding equipment, welding equipment, arc welding equipment, etc., can solve the problems of rising production costs and waste of resources in steel mills, and achieve the purpose of increasing service life, ensuring uniformity, improving strength and toughness and Effect of Contact Fatigue Strength

Inactive Publication Date: 2014-05-14
上海金刚冶金材料有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is scrapped directly, it will not only cause waste of resources, but also increase the production cost of the steel factory

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] According to the composition formula of Diamond324L pipe wire, the filling alloy material is prepared. The non-vacuum induction furnace is used to prefabricate the filling alloy powder by the atomization method, and the tubular alloy wire with a diameter of Φ4.0mm is made by rolling and drawing. The alloy pipe wire is applied to the surfacing of the support roll.

[0050] 1. Composition of Diamond324L tube wire

[0051] C mn Si Cr Mo W V S P 0.22 1.15 1.10 5.50 1.20 1.10 0.50 ≤0.030 ≤0.030

[0052] 2. Composition % of Diamond324L pipe wire surfacing layer

[0053] C mn Si Cr Mo W V S P 0.11 0.92 0.72 4.70 1.10 0.78 0.26 0.015 0.026

[0054] 3. Hardness after surfacing (HS): 58;

[0055] 4. Overlay welding process performance:

[0056] The arc is stable, the weld bead is well formed, the slag removal is good, and the weld has no pores, slag inclusions, and cracks.

Embodiment 2

[0058] According to the composition formula of Diamond324L pipe wire, the filling alloy material is prepared. The non-vacuum induction furnace is used to prefabricate the filling alloy powder by the atomization method, and the tubular alloy wire with a diameter of Φ3.2mm is made by rolling and drawing. The alloy pipe wire is applied to the surfacing of the support roll.

[0059] 1. Diamond324L tubing composition (%)

[0060] C mn Si Cr Mo W V S P 0.23 1.20 1.00 5.60 1.25 1.20 0.50 ≤0.030 ≤0.030

[0061] 2. Composition of Diamond324L pipe wire surfacing layer (%)

[0062] C mn Si Cr Mo W V S P 0.12 0.94 0.71 4.80 1.13 0.77 0.26 ≤0.030 ≤0.030

[0063] 3. Hardness after surfacing (HS): 57;

[0064] 4. Overlay welding process performance:

[0065] The arc is stable, the weld bead is well formed, the slag removal is good, and the weld has no pores, slag inclusions, and cracks.

Embodiment 3

[0067] According to the composition formula of Diamond324L pipe wire, the filling alloy material is prepared. The non-vacuum induction furnace is used to prefabricate the filling alloy powder by the atomization method, and the tubular alloy wire with a diameter of Φ4.0mm is made by rolling and drawing. The alloy pipe wire is applied to the surfacing of the support roll.

[0068] 1. Diamond324L tubing composition (%)

[0069] C mn Si Cr Mo W V S P 0.22 1.25 1.00 5.65 1.30 1.25 0.50 ≤0.030 ≤0.030

[0070] 2. Composition of Diamond324L pipe wire surfacing layer (%)

[0071] C mn Si Cr Mo W V S P 0.11 0.93 0.74 4.75 1.18 0.78 0.25 ≤0.030 ≤0.030

[0072] 3. Hardness after surfacing (HS): 58;

[0073] 4. Overlay welding process performance:

[0074] The arc is stable, the weld bead is well formed, the slag removal is good, and the weld has no pores, slag inclusions, and cracks.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of welding, in particular to an alloy pipe wire produced by prefabricated alloy powder for overlaying welding of a support roller and a manufacture method of the alloy pipe wire. The preparation method disclosed by the invention comprises the following specific steps of: firstly smelting a filler alloy for manufacturing the alloy pipe wire by adopting a non-vacuum induction furnace, and prefabricating into filler alloy powder with the required mixture ratio of ingredients through an atomization method; further filling the prefabricated filler alloy powder into a steel strip, and rolling through the steel strip for forming; and drawing into a pipy welding wire in the required diameter according to the needs after rolling. The alloy pipe wire for overlaying welding of the support roller, provided by the invention, can ensure the uniformity in the ingredients of an overlaying welding layer formed after the support roller is repaired through overlaying welding and the uniformity in the hardness of the roller surface. Furthermore, non-metal inclusions and other impurities can be reduced and eliminated, the filler alloy powder can be optimized and purified, the strength, the toughness and the anti-contact fatigue strength of the material can be further improved, and the metal subject to overlaying welding has excellent anti-heat cracking performance.

Description

technical field [0001] The invention belongs to the field of welding technology, and in particular relates to an alloy pipe wire for surfacing welding of a support roller and a preparation method thereof. Background technique [0002] The backup roll is the main part of the rolling mill system in the steel mill, and its function is to assist the roll in rolling. Back-up rolls, like work rolls, have an important influence on rolling production stability, strip profile and surface quality. Therefore, it is necessary to regularly go off-line for grinding treatment to eliminate the surface hardening layer and restore the hardness of the roll surface. When the roll diameter is reduced to the limit size, it can no longer be used. Some backup rolls fail due to local spalling and only a small amount of working layer is lost. If it is scrapped directly, it will not only cause waste of resources, but also increase the production cost of the steel factory. At present, the back-up r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K9/04C22C38/38C22C33/06B22F9/08
Inventor 黄权陈晔朱亚忠隆奎
Owner 上海金刚冶金材料有限公司