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Technology for producing wear-resisting compound material

A production process and composite material technology, applied in the field of metallurgy, to achieve the effect of stable production process and compact structure of alloy layer

Inactive Publication Date: 2004-03-24
陈振华 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a wear-resistant composite material production process that is not easy to produce casting defects during casting infiltration, has a dense alloy layer structure, high surface quality, and is easy to control the thickness and structure of the alloy layer

Method used

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  • Technology for producing wear-resisting compound material
  • Technology for producing wear-resisting compound material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown in the figure, 1-flask, 2-alloy powder coating or alloy prefabricated body, can be in various shapes according to the requirements of the workpiece, which can be the inner or outer surface of the workpiece, 3-cavity, 4-casting mold.

[0026] The first step: selection and production of alloy layer materials: use alloy powder with a particle size of 0.005-0.8mm. The composition of alloy powder is: chromium (Cr), molybdenum (Mo), tungsten (W), vanadium (V), Titanium (Ti), nickel (Ni), cobalt (Co), manganese (Mn), boron (B), carbon (C), the binder is polyvinyl butyral alcohol solution, the binder and alloy powder Stir well and evenly to make alloy powder coating.

[0027] Step 2: Molding: Use water glass sand to mold. When molding, first create the cavity 3 of the required casting in the sand box 1, and set the wear-resistant working surface of the casting on the side of the mold 4. After the mold is solidified The alloy powder paint is coated on...

Embodiment 2

[0031] The first step: the selection and production of the alloy layer material: the alloy powder adopts the weight percentage of: 80% sintered hard alloy particles with a particle size of 0.4-0.8mm, 20% nickel (Ni) and chromium (Ni) with a particle size of 0.05-0.1mm Cr) powder, sintered cemented carbide is YG8 (its composition is tungsten carbide WC92%, cobalt Co8%), YG15 (its composition is tungsten carbide WC85%, cobalt Co15%) or YT14 (its composition is tungsten carbide WC78%, carbide Titanium TiC14%, cobalt Co8%). The binder is polyvinyl alcohol alcohol solution, and the binder and the alloy powder are fully stirred evenly to make the alloy powder coating.

[0032] Step 2: Molding: Use water glass sand to mold. When molding, first create the cavity 3 of the required casting in the sand box 1, and set the wear-resistant working surface of the casting on the side of the mold 4. After the mold is solidified The alloy powder paint is coated on the side of the mold 4 to form...

Embodiment 3

[0036] The first step: the selection and production of the alloy layer material: the alloy powder adopts the weight percentage of: 40% sintered hard alloy particles with a particle size of 0.4-0.8mm, 60% nickel (Ni) and chromium (Ni) with a particle size of 0.05-0.1mm Cr) powder, sintered cemented carbide is YG8 (its composition is tungsten carbide WC92%, cobalt Co8%), YG15 (its composition is tungsten carbide WC85%, cobalt Co15%) or YT14 (its composition is tungsten carbide WC78%, carbide Titanium TiC14%, cobalt Co8%). The binder is made of water glass, and the binder and the alloy powder are fully stirred evenly to make the alloy powder coating.

[0037]Step 2: Molding: resin sand molding is used. When molding, the cavity 3 of the required casting is first made in the sand box 1, and the wear-resistant working surface of the casting is set on the side of the mold 4. After the mold is solidified, the The alloy powder coating is coated on the side of the mold 4 to form the al...

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Abstract

The production process for forming high-alloy wear-resisting layer composite material on the surface of carbon steel or alloy steel includes the following steps: firstly, selecting and using 40-80 % of alloy powder which is formed from Cr, Mo, W, V, Ti, Ni, Co, Mn, B and C and whose grain size is 0.005-0.8 mm or selecting and using sintered hard alloy granules whose grain size is 0.4-0.8 mm and 20-60 % of nichrome alloy powder whose grain size is 0.05-0.1 mm, mixing adhesive and alloy powder and stirring them to obtain the alloy powder coating material, then applying the alloy powder coating material on the side surface of casting mould, and third step pouring and forming to form alloy layer with compact structure, and the combination of alloy layer and self-body is good.

Description

technical field [0001] The invention belongs to the metallurgical technology industry, and in particular relates to a production process for forming a high-alloy wear-resistant layer composite material on the surface of carbon steel or alloy steel. Background technique [0002] Wear is one of the main forms of material failure, and a large number of parts fail due to wear. Therefore, it is of great economic significance to improve the wear resistance of parts. [0003] In actual production applications, there are usually two mechanisms for the failure of many workpieces: one is that the surface of the workpiece wears a certain thickness and leads to scrapping, so the workpiece is required to have higher wear resistance, and the other is due to insufficient strength and toughness of the material. And cause the workpiece to break and be scrapped, so the workpiece is required to have sufficient strength and toughness. Materials with high wear resistance oft...

Claims

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Application Information

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IPC IPC(8): B22F7/04
Inventor 陈振华魏世忠刘亚民
Owner 陈振华
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