Check patentability & draft patents in minutes with Patsnap Eureka AI!

A kind of alloy composite body and its manufacturing method and application

A composite and alloy technology, used in chemical instruments and methods, metal layered products, layered products, etc., can solve the problems of non-wear resistance, short service life, and short service life of tooth pick chains.

Active Publication Date: 2018-02-16
CHINA SHENHUA ENERGY CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is not wear-resistant, easy to break, and the service life of its gear chain is short
Faced with the current situation of short service life, high cost, low efficiency, and high labor intensity of the tooth chains used for cleaning and cleaning vehicles for railway line maintenance in China, it is urgent to develop a wear-resistant cemented carbide composite

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of alloy composite body and its manufacturing method and application
  • A kind of alloy composite body and its manufacturing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0023] In the present invention, the main improvement of the preparation method of the nano-alloy material layer compared with the prior art is to provide the above-mentioned content of the present invention coarse grain tungsten carbide, nano-particle tungsten carbide and cobalt, preferably, also provide the Coarse-grain tungsten carbide and nano-particle tungsten carbide with the above-mentioned grain size, therefore, the specific process conditions and operation steps of the nano-hard alloy preparation method can be carried out according to the prior art. For example, according to a preferred embodiment of the present invention, specifically, the preparation method of the hard nano-alloy material layer includes: 100 parts by weight of coarse-grained tungsten carbide with a grain size of 1.8-5.5 μm, 46-87.5 Parts by weight of nano-particle tungsten carbide with a grain size of 0.1-0.4 μm, 8.5-25 parts by weight of cobalt powder with a grain size of 3.5-6.5 μm, and 15-37.5 par...

preparation example 1

[0032] 100 parts by weight of coarse tungsten carbide with a grain size of 3 μm, 58 parts by weight of nanoparticle tungsten carbide with a grain size of 0.25 μm, 18 parts by weight of cobalt powder with a grain size of 4.5 μm and 25 parts by weight of Styrene-butadiene rubber is mixed, and then mechanically pressurized to obtain a molded blank; in a vacuum environment with a vacuum degree of about 400Pa, the molded blank is sintered at a temperature of 1435°C for 9.5 hours to obtain a nano-hard alloy J1.

[0033] After calculation, based on the total weight of the obtained nano-hard alloy J1, the content of the coarse particle tungsten carbide is 57% by weight, the content of the nanoparticle tungsten carbide is 33% by weight, and the content of the cobalt is 10% by weight. %.

preparation example 2

[0035] 100 parts by weight of coarse tungsten carbide with a grain size of 2.5 μm, 64 parts by weight of nanoparticle tungsten carbide with a grain size of 0.20 μm, 15 parts by weight of cobalt powder with a grain size of 4.0 and 20 parts by weight of Butadiene rubber is mixed, and then mechanically pressurized and formed to obtain a shaped blank; in a vacuum environment with a vacuum degree of about 410Pa, the formed blank is sintered at a temperature of 1430°C for 10 hours to obtain a nano-hard Alloy J2.

[0036] After calculation, based on the total weight of the obtained nano-hard alloy J2, the content of the coarse particle tungsten carbide is 56% by weight, the content of the nanoparticle tungsten carbide is 36% by weight, and the content of the cobalt is 8% by weight. %.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
crystal sizeaaaaaaaaaa
crystal sizeaaaaaaaaaa
crystal sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of alloy materials, in particular to an alloy composite body and a manufacturing method and application of the alloy composite body. The alloy composite body comprises a steel board layer, a metal binding agent layer and a nano-cemented carbide material layer, wherein the steel board layer is combined with the nano-cemented carbide material layer through the metal binding agent layer; and the nano-cemented carbide material layer contains 40-65 wt% of coarse particle tungsten carbide, 20-45 wt% of nano-particle tungsten carbide and 5-40 wt% of cobalt with the total weight of the nano-cemented carbide material layer as the benchmark. The mechanical strength, hardness and abrasion resistance of the alloy composite body are very excellent, and when the alloy composite body is used for detaching toothed chains of maintenance and cleaning cars of rail tracks, the hardness and the mechanical strength of detaching toothed heads can be improved remarkably, and the service life of the detaching toothed heads can be prolonged remarkably.

Description

technical field [0001] The invention relates to the field of alloy materials, in particular to an alloy composite body, a preparation method and application of the alloy composite body. Background technique [0002] The GYKJ-RM80 tooth chain for railway line maintenance and cleaning vehicle is the main component and vulnerable part used in the process of railway line cleaning and screening. At present, the tooth chains used for cleaning and cleaning vehicles for railway line maintenance in China generally use low-cost ZG45 base metal forged products (the base material does not contain any wear-resistant and toughness-enhancing alloy elements). Its disadvantage is that it is not wear-resistant, easy to break, and the service life of its gear chain is relatively short. Faced with the current situation of short service life, high cost, low efficiency, and high labor intensity of the tooth chains used for cleaning and cleaning vehicles for railway line maintenance in China, it ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/08C22C38/04C22C38/18C22C38/12C22C38/02C22C1/05B32B15/01B32B15/18B32B7/12
CPCB32B7/12B32B15/013B32B2250/02B32B2307/536B32B2307/554C22C1/051C22C29/005C22C29/067C22C29/08C22C38/02C22C38/04C22C38/12C22C38/18
Inventor 刘学敏宫实俊李红利孙静涵李贵友李振峰
Owner CHINA SHENHUA ENERGY CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com