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Method for preparing high-manganese steel-ceramic-carbon steel composite wear-resistant lining board

A composite wear-resistant liner and high-manganese steel liner technology, which is applied in the field of wear-resistant materials, can solve problems such as shedding, cracks, and easy-aging wear-resistant ceramic blocks, and achieve the effect of preventing shedding

Pending Publication Date: 2020-04-03
秦皇岛渤海燕大耐磨钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are some shortcomings in these two types of ceramic and metal composite materials. The first type: ceramic blocks are mostly cylinders or cubes, usually bonded by polymer adhesives. Make the wear-resistant ceramic block fall off
In addition, the metal substrate is often made of ordinary steel plates, which have poor wear resistance. During use, the metal wears off quickly and the ceramic blocks protrude, increasing the risk of brittle cracks.
The second category: ceramics have a strong chilling effect on molten metal, and cast steel has low thermal conductivity, which easily leads to high stress areas in ceramics and the formation of cracks

Method used

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  • Method for preparing high-manganese steel-ceramic-carbon steel composite wear-resistant lining board
  • Method for preparing high-manganese steel-ceramic-carbon steel composite wear-resistant lining board

Examples

Experimental program
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Effect test

Embodiment 1

[0025] After smelting the high manganese steel with chemical composition weight percentage (wt%) as C 0.65, Mn 13.1, N 0.016, Mo 0.35, and the rest is Fe and impurities, it is cast as figure 1 The shown porous high manganese steel liner with a thickness of 20mm has a conical through hole shape, the upper diameter of the conical shape is 20mm, and the lower diameter is 25mm. 97% Al by weight 2 o 3 Mix well with 3% SiC powder and sinter to form a ceramic block with the same size as the conical through hole. After cleaning the surface of the ceramic block and the inner wall of the through hole of the high manganese steel liner, apply adhesive, and insert the ceramic block into the through hole. Cut the rubber pad with a thickness of 2mm and the Q235 steel plate with a thickness of 3mm to the same size as the high manganese steel liner. After pasting the rubber pad on the Q235 steel plate, use a welding machine to weld the surrounding edges of the Q235 steel plate to the high ma...

Embodiment 2

[0029] After the high manganese steel with chemical composition weight percentage (wt%) is C 0.70, Mn 12.9, N 0.021, Mo 0.42, and the rest is Fe and impurities is smelted in an electric arc furnace, it is cast as figure 2 The shown porous high manganese steel liner with a thickness of 15mm has a through hole in the shape of a square cone, the upper side of the square cone is 32mm long and the lower side is 40mm long. 95% Al by weight 2 o 3 Mix well with 5% SiC powder and sinter to form a ceramic block with the same size as the through hole of the square cone. After cleaning the surface of the ceramic block and the inner wall of the through hole of the high manganese steel liner, apply adhesive, and insert the ceramic block into the through hole. Cut the rubber pad with a thickness of 2mm and the Q235 steel plate with a thickness of 3mm to the same size as the high manganese steel liner. After pasting the rubber pad on the Q235 steel plate, use a welding machine to weld the ...

Embodiment 3

[0031] After the high manganese steel with chemical composition weight percentage (wt%) is C 0.55, Mn 12.3, N 0.018, Mo 0.32, and the rest is Fe and impurities is smelted in an electric arc furnace, it is cast as figure 2 The shown porous high manganese steel liner with a thickness of 16mm has a through hole in the shape of a square cone, the length of the upper side of the square cone is 28mm, and the length of the lower side is 35mm. 96% Al by weight 2 o 3 Mix well with 4% SiC powder and sinter to form a ceramic block with the same size as the through hole of the square cone. After cleaning the surface of the ceramic block and the inner wall of the through hole of the high manganese steel liner, apply adhesive, and insert the ceramic block into the through hole. Cut the rubber pad with a thickness of 2mm and the Q235 steel plate with a thickness of 3mm to the same size as the high manganese steel liner. After pasting the rubber pad on the Q235 steel plate, use a welding m...

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Abstract

The invention provides a method for preparing a high-manganese steel-ceramic-carbon steel composite wear-resistant lining board. The method comprises: firstly, casing the high-manganese steel into a high-manganese steel lining board having tapered through holes with small tops and large bottoms, subjecting the high-manganese steel lining board to a water toughening treatment, cleaning the surfacesof the through holes and applying an adhesive to a surface to be pasted; from the back side of the lining board, inserting the tapered ceramic blocks with the same shape and size as the tapered through holes into the through holes; and welding a rubber-pasted carbon steel plate to the high manganese steel-ceramic composite plate to obtain the high-manganese steel-ceramic-carbon steel composite wear-resistant lining board. The composite lining board has not only high hardness, but also good toughness and excellent wear resistance and impact resistance. The high-manganese steel-ceramic-carbon steel composite wear-resistant lining board has a simple manufacturing process, high yield and stable performance, and can be widely used in mining, coal, building materials and metallurgy industry equipment.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a preparation method of a high-manganese steel-ceramic-carbon steel composite wear-resistant liner. Background technique [0002] Wear-resistant ceramics have been proven to be one of the best wear-resistant materials due to their high hardness, and are widely used in mining, cement, electric power, building materials and metallurgy industries. However, the high hardness and high brittleness of wear-resistant ceramics limit its application under the condition of large impact load. Over the years, people have done a lot of research work on the toughening of wear-resistant ceramics, but the results have not been very satisfactory, mainly because the toughness has not improved much but the cost has increased significantly. Commonly used composite ceramic wear-resistant linings are bonded with ceramic blocks on the metal surface, and are usually only used in places ...

Claims

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Application Information

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IPC IPC(8): B23K31/02C22C38/04C22C38/12
CPCB23K31/02C22C38/001C22C38/04C22C38/12
Inventor 张桂苹
Owner 秦皇岛渤海燕大耐磨钢有限公司
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