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Wearing layer inlay coating sintering process

A technology of wear-resistant layer and sintering, which is applied in the direction of metal material coating process and coating, can solve the problems of wasting manpower, material resources and funds, affecting the economic benefits of enterprises, and short service life, so as to improve the service life of equipment and reduce The effect of spare parts consumption and long service life

Inactive Publication Date: 2010-04-07
尹春久
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, excavators, mud pumps, electric shovels and other equipment used in metallurgy, mining, coal and other enterprises use a large number of wear-resistant and wearing parts. These wearing parts are expensive in materials and have a short service life. They need to be replaced and repaired frequently, wasting a lot of manpower Materials and funds
In order to increase the wear resistance of vulnerable parts, some enterprises have adopted spraying, electroplating, surfacing and other methods to add protective layers on the surface of vulnerable parts, but the results are not ideal, and some have poor wear resistance. The time is short, and some are not fixed firmly, and they fall off by themselves during use, which affects the economic benefits of these enterprises

Method used

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  • Wearing layer inlay coating sintering process

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Example 1: Repairing the pump lining of the slurry pump

[0041] At present, the pump lining of the slurry pump used in mines is made of Cr27 alloy pump lining, which has a short service life and needs to be replaced frequently, wasting a lot of money and manpower. Applying the inlaid coating and fusing process of the present invention, a wear-resistant layer is inlaid and fused on the scrapped high-chromium cast iron Cr27 alloy pump lining substrate, which greatly reduces the investment cost of replacing the wear-resistant parts.

[0042] Repair the wear-resistant layer of the pump lining of the slurry pump. The composition is: 15% nickel powder, 30% chromium powder, 10% manganese powder, 30% iron powder, 10% carbon powder, and 5% silicon powder. After mixing, internally heat to 1300° C. for 5 minutes. The drying temperature is 40 DEG C, and the drying time is 2 hours. The sintering temperature of the sintering furnace is 1300° C., the sintering time is 1 minute, the...

Embodiment 2

[0044] Example 2: Restoring the shovel teeth of the electric shovel

[0045] my country's mining enterprises now mostly use high-manganese cast steel manganese 13 shovel teeth, which have a short service life and need to be replaced frequently, which affects the profitability of the enterprise. Applying the inlaid coating and fusing process of the present invention, a layer of wear-resistant layer is inlaid and fused on the original discarded shovel tooth substrate, which greatly reduces unnecessary consumption of spare parts, and creates conditions for enterprises to reduce production costs and increase production and efficiency.

[0046] Repair the wear-resistant layer of electric shovel teeth, the composition is: nickel powder 15%, chromium powder 25%, manganese powder 10%, iron powder 30%, carbon powder 15%, silicon powder 5%, mix the above components evenly Then internally heated to 1200°C for 8 minutes. The drying temperature is 40 DEG C, and the drying time is 2.5 hour...

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Abstract

The invention relates to the technical field of coating wear-resistant layers, in particular to a wear-resistant layer coating-melting process. The process is characterized by comprising the followingsteps that: a wear-resistant layer alloy block with the contact surface in the same shape with the contact surface of a matrix is manufactured; the wear-resistant layer alloy block and the matrix arecoated by use of binder; the matrix coated with the wear-resistant layer alloy block is sent into a drying chamber to be dried; the dried matrix coated with the wear-resistant layer alloy block is sentinto a melting furnace to be melted; a melted product is sprayed with cold water for cooling in the melting furnace and then sent to a testing room for test. The invention has the advantages that the process is firm in melting and does not damage the matrix; the melting is not limited by the shape and structure of the matrix; melting thickness is not limited; melting porosity is zero; the meltedproduct cannot be oxidized; and the procedure of the melting process has no noise or pollution, thereby meeting the requirements on environmental protection, etc. The process is suitable to be popularized and applied in enterprises using wear-resistant vulnerable equipment in the metallurgy, mining, power, coal, chemical, building material and other industries.

Description

technical field [0001] The invention relates to the technical field of wear-resistant layer insert coating, in particular to a wear-resistant layer insert coating fusing process. Background technique [0002] At present, excavators, mud pumps, electric shovels and other equipment used in metallurgy, mining, coal and other enterprises use a large number of wear-resistant and wearing parts. These wearing parts are expensive in materials and have a short service life. They need to be replaced and repaired frequently, wasting a lot of manpower Material resources and funds. In order to increase the wear resistance of wearing parts, some enterprises have adopted spraying, electroplating, surfacing and other methods to add protective layers on the surface of wearing parts. However, the results are not ideal, and some have poor wear resistance. The time is short, and some are not firmly fixed, and fall off by themselves during use, which affects the economic benefits of these enter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C26/00
Inventor 尹春久白景明
Owner 尹春久
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