Dual-alloy cladding layer wear plate and preparation method

A technology of spectacle plates and cladding layers, which is applied in the direction of mechanical equipment, liquid fuel engines, and parts of pumping devices for elastic fluids, etc. It can solve the problems of high material costs, thermal shock of hard alloys, and inability to meet actual needs, etc. question

Inactive Publication Date: 2013-07-24
BEIJING UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above failure factors, the usage of spectacle panels is only 30,000m 3 left and right, far from meeting actual needs
[0004] Chinese patent 03114161.7 uses casting to complete the combination of the spectacle plate matrix and cemented carbide, but the casting process has a significant thermal shock to the cemented carbide
Chinese patent 201010186989.1 uses nickel-coated diamond or cubic boron nitride composite coating to prepare spectacle plates and cutting rings, but the material cost is high
[0005] The above traditional conventional methods are still unsatisfactory, and the service life of the spectacle plate needs to be further improved

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
  • Dual-alloy cladding layer wear plate and preparation method
  • Dual-alloy cladding layer wear plate and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Select 35 steel as the base material of the spectacle plate, and obtain a high-precision spectacle plate base (the outer contour of the spectacle plate and two holes cut) by laser cutting according to the drawing, and the thickness of the base is 30mm;

[0023] (2) Machining the substrate of the spectacle plate, reserve a subsequent cladding thickness of 3.0mm on the inner surface of the two holes of the spectacle plate, and process the mounting holes of the spectacle plate.

[0024] (3) Laser cladding equipment adopts Trumpf 6000 watts CO 2 Laser (wavelength 10.6um), coaxial cladding head, double-barrel powder feeder, one of which is filled with iron-based alloy powder, and the other is filled with nickel-tungsten carbide powder. The chemical composition of the iron-based alloy used is C: 0.70 wt%, B: 3.0 wt%, Cr: 24 wt%, Ni: 7 wt%, Si: 3.0 wt%, and the balance Fe. The chemical composition of the nickel-tungsten alloy used is C: 2.7 wt%, Cr: 13 wt%, Si: 2.8 wt%, W...

Embodiment 2

[0033] (1) Select 45 steel as the base material of the spectacle plate, and obtain a high-precision spectacle plate base (the outer contour of the spectacle plate and two holes cut) by laser cutting according to the drawing, and the thickness of the base is 30mm;

[0034] (2) Machining the substrate of the spectacle plate, reserve a subsequent cladding thickness of 3.0mm on the inner surface of the two holes of the spectacle plate, and process the mounting holes of the spectacle plate.

[0035] (3) The laser cladding equipment adopts a 4000-watt optical fiber output semiconductor laser (wavelength 1070nm), a coaxial cladding head, and a double-barrel powder feeder, one of which is filled with iron-based alloy powder, and the other is filled with nickel-tungsten carbide powder. The chemical composition of the iron-based alloy used is C: 0.55 wt%, B: 2.5 wt%, Cr: 22 wt%, Ni: 5.5%, Si: 2.4 wt%, and the balance Fe. The chemical composition of the nickel-tungsten alloy used is C: ...

Embodiment 3

[0044] (1) Select 45 steel as the base material of the spectacle plate, and obtain a high-precision spectacle plate base (the outer contour of the spectacle plate and two holes cut) by laser cutting according to the drawing, and the thickness of the base is 30mm;

[0045] (2) Machining the substrate of the spectacle plate, reserve a subsequent cladding thickness of 3.0mm on the inner surface of the two holes of the spectacle plate, and process the mounting holes of the spectacle plate.

[0046] (3) Laser cladding equipment adopts 3000 watts of optical fiber output semiconductor laser (wavelength 808-975nm), coaxial cladding head, double-barrel powder feeder, one of which is filled with iron-based alloy powder, and the other is filled with nickel-tungsten hard quality alloy powder. The chemical composition of the iron-based alloy used is C: 0.40 wt%, B: 2.0 wt%, Cr: 20 wt%, Ni: 4%, Si: 1.8 wt%, and the balance Fe. The chemical composition of the nickel-tungsten alloy used is C...

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

No PUM Login to view more

Abstract

A dual-alloy cladding layer wear plate and a preparation method relate to the field of wear plate of a concrete pumper. Bores of a wear plate matrix and inner rings of glasses are cladded with ferrous alloy by laser; and outer rings of the glasses are cladded with nickel tungsten alloy by laser. The ferrous alloy comprises chemical components of 0.40-0.70 wt% of C, 2.0-3.0 wt% of B, 20-24 wt% of Cr, 4-7 wt% of Ni, 1.8-3.0 wt% of Si and the balance of Fe. The nickel tungsten alloy comprises chemical components of 2.2-2.7 wt% of C, 10-13 wt% of Cr, 1.8-2.8 wt% of Si, 50-60 wt% of W, 1.5-2.4 wt%of B and the balance of Ni. In order to prolong a service life of the wear plate and according to failure characteristics of different working positions, different alloy materials are cladded by laser to reach the goal of saving precious metal materials and reducing processing cost.

Description

technical field [0001] The invention relates to a spectacle plate of a concrete pump truck and laser cladding surface technology, and belongs to the technical field of laser processing. Background technique [0002] The S-shaped pumping distribution valve is a key part of the concrete pump. It connects the delivery cylinder and the delivery pipe, and coordinates the action of each part, which directly affects the performance of the concrete pump. The spectacle plate is an easy-wearing part in the S valve, which communicates with the concrete delivery cylinder. The moving part, the S tube, is driven by the swing cylinder to switch the concrete from one side of the concrete cylinder port to the other side of the concrete cylinder port. The cutting ring follows the S tube It moves against the spectacle plate and forms a switching friction pair with the spectacle plate. Since the working medium is concrete, the rapid swing of the cutting ring causes strong abrasive wear on the ...

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): C23C24/10C22C38/54C22C19/05F04B53/00
Inventor 杨胶溪
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap