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High-carbon high-chrome ledeburite steel explosive welded wearing-resistant composite material

A technology of carbon high-chromium ledeburite steel and high-chromium ledeburite steel, which is applied in the field of high-carbon high-chromium ledeburite steel, can solve problems such as easy cracking, brittleness, and incomplete compounding, so as to prolong the service life, Effects of equipment cost reduction and high interfacial bond strength

Inactive Publication Date: 2009-06-17
JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a high-carbon high-chromium ledeburite steel explosive welding high wear-resistant composite material used for rolling steel, electric furnace and other equipment, which can effectively overcome the existing high-carbon high-chromium ledeburite steel in the explosion welding Defects such as fragility, cracking and incomplete compounding during welding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Industrial scale production of high-carbon high-chromium ledeburite steel explosive welding high wear-resistant composite materials, the production methods are divided into:

[0016] 1. Pretreatment process: 1) Grinding the bonding surface to remove the oxide layer on the surface; 2) Determining the size of the substrate, double board and medicine box, the base board is 3 cm longer than the double board, and the medicine box is 2 cm longer than the base board. 4 cm wide; 3) Before explosive welding, wash the surface of the plywood with gasoline and dry it to eliminate the oil stain on the surface.

[0017] 2. Explosive welding composite process, choose low detonation velocity 2 # rock or 1 # Ammonium pine wax explosive, preferred 1 # Ammonium pine wax explosives, and add 4% salt, 1% perlite, and 1% saw powder according to the total weight in a certain proportion; use the detonation characteristics of explosives to make high-carbon high-carbon materials with low AK val...

Embodiment 2

[0024] Industrial-scale production of high-carbon, high-chromium ledeburite steel explosion-welded high-wear-resistant composite materials, the production method is divided into one, pretreatment process: 1) Grinding the bonding surface to remove the oxide layer on the surface; 2) Substrate and double board As well as the determination of the size of the medicine box, the substrate is 5 cm longer than the double board, and the medicine box is 3 cm longer and 6 cm wider than the base plate, which is convenient for eliminating the influence of the boundary effect of the initiation end, both sides and the end during explosive welding; Scrub the surface of the base plywood with gasoline and dry it to remove oil stains on the surface.

[0025] 2. Explosive welding composite process: choose low detonation velocity 2 # rock or 1 # ammonium pine wax explosive,

[0026] Preferred 1 # Ammonium pine wax explosive, and add 6% salt, 3% perlite, and 1% saw powder accounting for the total...

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Abstract

The production process of explosive welded wear resistant high carbon high chromium ledeburite steel composite material includes pre-treatment, explosive welding compounding, and annealing treatment. The composite material has structure including one base layer and high carbon high chromium ledeburite steel combined to cover one or two surfaces of the base layer. Compared with available technology, the explosive welding process has 30-40 % lowered explosive consumption, low cost, reduced blast wave and noise explosive welding produces. The annealed composite material has high interface combining strength and lowered hardness of covering high carbon high chromium ledeburite steel layer.

Description

technical field [0001] The invention relates to a high-carbon, high-chromium ledeburite steel explosion-welded high-wear-resistant composite material in equipment such as rolling steel and an electric furnace, and belongs to the technical field of high-carbon, high-chromium ledeburite steel. Background technique [0002] The article "T10+20G Explosive Welding Composite Plate" published in the "Blasting" magazine in June 2001 described an experimental method for preparing high-hardness composite materials. Cracks are prone to occur during welding to make the welding fail. It is also mentioned in the article that they used carbon steel (20G) as the base layer with a plate thickness of 30mm, and the cladding layer was tool steel (T10) with a plate thickness of 7mm and an area of ​​1M 2 , carried out the test, because the experimental sample is too small, it is far from the demand of industrialized production. In addition, this experiment does not involve the description of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/08B23K20/24B23K20/26C21D11/00C22C38/24C22C38/04
Inventor 史长根冯健史和庆史和生
Owner JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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