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Scraper with wear-resistant layer at knife edge and production process of scraper

A production process and wear-resistant layer technology, which is applied in the field of scraper and its production process, can solve the problems of low smoothness of wear-resistant layer, low hardness of wear-resistant layer, and low density of scraper, so as to improve hardness and wear resistance , The effect of saving production cycle and production cost

Pending Publication Date: 2022-07-22
马鞍山宝祥机械刀模有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scraper in the above-mentioned patent has low density, and the wear-resistant layer is bonded by surfacing welding. The smoothness of the formed wear-resistant layer is low, and the wear of the scraping process is large, and the wear-resistant layer only uses pure metal and ceramics as raw materials. production, the wear-resistant layer after production has low hardness and short service life

Method used

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  • Scraper with wear-resistant layer at knife edge and production process of scraper
  • Scraper with wear-resistant layer at knife edge and production process of scraper
  • Scraper with wear-resistant layer at knife edge and production process of scraper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see Figure 1 to Figure 2 , a scraper with a knife edge with a wear-resistant layer, including a knife body 1, a guide groove 2, a wear-resistant layer 1 3 and a wear-resistant layer 2 4, the lower end of the knife body 1 extends forward at the knife edge, and the end of the extended part It is covered with a wear-resistant layer 3, and a guide groove 2 is opened above the knife edge. The guide groove 2 is used to guide the scraped material to both sides of the scraper. A wear-resistant layer 2 4 is provided, and the wear-resistant layer 1 3 and the wear-resistant layer 2 4 are composed of the following components by mass percentage: 60% of emery, 20% of silicon micropowder, and 20% of high-manganese steel solder.

[0031] see image 3 , in order to better show the production process of the scraper with a wear-resistant layer on the knife edge, the present embodiment now proposes a production process of the scraper with a wear-resistant layer on the knife edge, includi...

Embodiment 2

[0038] The only difference between this embodiment and the first embodiment is that the constituent components of the wear-resistant layer 1 3 and the wear-resistant layer 2 4 in this embodiment are different;

[0039] The wear-resistant layer 1 3 and the wear-resistant layer 2 4 are composed of the following components by mass percentage: 20% of cemented carbide particles, 40% of emery, 20% of silicon micropowder, and 20% of high-manganese steel solder.

[0040] In order to better show the production process of the scraper with a wear-resistant layer on the knife edge, the present embodiment now proposes a production process of the scraper with a wear-resistant layer on the knife edge, including the following steps:

[0041] S101: prepare several kinds of raw materials with a certain particle size, including cemented carbide particles, emery, silicon micropowder and high-manganese steel solder, wherein the particle size of cemented carbide particles is larger than the particle...

Embodiment 3

[0047] The only difference between this embodiment and the first embodiment is that the constituent components of the wear-resistant layer 1 3 and the wear-resistant layer 2 4 in this embodiment are different;

[0048] The wear-resistant layer 1 3 and the wear-resistant layer 2 4 are composed of the following components by mass percentage: 20% of cemented carbide particles, 15% of emery, 25% of ceramic particles, 20% of silicon micropowder, and 20% of high-manganese steel solder.

[0049] In order to better show the production process of the scraper with a wear-resistant layer on the knife edge, the present embodiment now proposes a production process of the scraper with a wear-resistant layer on the knife edge, including the following steps:

[0050] S101: Prepare several kinds of raw materials with a certain particle size, including cemented carbide particles, emery, ceramic particles, silicon micropowder and high-manganese steel solder, wherein the particle size of cemented ...

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Abstract

The invention discloses a scraper with a wear-resistant layer on a scraper edge and a production process of the scraper, belongs to the technical field of scrapers, and solves the problem that a wear-resistant layer of an existing scraper is severely abraded. The scraper comprises a scraper body, a flow guide groove, a first wear-resistant layer and a second wear-resistant layer, the scraper edge at the lower end of the scraper body extends forwards, and the end of the extending part is coated with the first wear-resistant layer; a first abrasion-resistant layer is arranged at the end corner of the lower end of the rear side of the cutter body, a diversion trench is formed above the cutter edge, a second abrasion-resistant layer is arranged at the end corner of the lower end of the rear side of the cutter body, and the first abrasion-resistant layer and the second abrasion-resistant layer are each composed of, by mass, 45%-73% of carborundum, 15%-30% of silica powder and 12%-25% of high-manganese steel welding flux. Various components with different particle sizes are mixed, the compactness of the scraper is improved, silica powder is added, the smoothness of the wear-resistant layer of the scraper can be improved, the hardness of the wear-resistant layer of the scraper can be further improved, and the wear resistance of the wear-resistant layer of the scraper is improved.

Description

technical field [0001] The invention relates to the technical field of scrapers, in particular to a scraper with a wear-resistant layer on the edge and a production process thereof. Background technique [0002] Scraper, also known as trowel, is the most widely used tool in repairing, including flat head, pointed head and round head. Casting ribs, trimming sand blanks and soft and hard sand beds, and lifting the reinforcing nails on the surface of the sand mold into the sand mold, etc. [0003] The patent No. CN200710053978.4 discloses a preparation method of a super wear-resistant composite ceramic scraper. The preparation method includes four processes: metal skeleton preparation, ceramic material preparation, compounding and curing. Under the same conditions of use, the life of the scraper is extended by 10-15 times; capital consumption is reduced by 30%; more than 20,000 tons of high-quality steel are saved, and only more than 800 tons of ordinary steel and about 360 to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F21/06E04F21/16B22F7/08B22F5/00B22F1/12B22F3/10
CPCE04F21/06E04F21/161B22F7/08B22F5/00B22F3/10B22F2005/001
Inventor 陶道宝
Owner 马鞍山宝祥机械刀模有限公司
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