Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of iron-based amorphous coating and preparation method thereof

An iron-based amorphous and coating technology, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of difficult amorphous coating and low cooling speed, and achieve simple and easy operation, small spatter, Good effect of coating formation

Active Publication Date: 2018-01-12
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of amorphous coatings reported in domestic and foreign patents are more thin coatings prepared by thermal spraying, laser cladding and other methods, while the surfacing method is relatively difficult to obtain amorphous coatings due to the low cooling rate in the process. Larger, making fewer patent reports in this area

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 iron-based amorphous coating and preparation method thereof
  • A kind of iron-based amorphous coating and preparation method thereof
  • A kind of iron-based amorphous coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of alloy powder for plasma surfacing by vacuum aerosol method:

[0030] The pure metal Fe, Si, Mn used in industry and Fe-Mo, Fe-Ti, Fe-Nb, Fe-B, Fe-C alloy used in industry are divided into Fe 63.32 Mo 3.32 Ti 2.04 Nb 9.83 B 16.62 C 3.85 Si 0.55 mn 0.47 (Atomic percentage, at%) After the raw material is prepared, the raw material is melted and refined in a vacuum induction furnace, and then the molten metal liquid is poured into an insulated crucible and enters an atomization furnace, atomized by a high-pressure gas flow and It solidifies and settles in the atomization tower, and falls into the powder collection tank to obtain;

[0031] (2) 35CrMo steel is selected as the base material, and the oxide removal and surface cleaning are carried out on the surface of the base material in sequence before plasma surfacing. Among them, the oxide removal adopts the grinding method until the metallic luster is exposed; the surface cleaning uses metal Dete...

Embodiment 2

[0036] Step (1), step (2) and step (4) are all identical with embodiment 1, only adjust each process parameter of plasma overlay welding in step (3) as follows: welding voltage is 26V, welding current is 150A, welding speed The speed is 35mm / min, the protective airflow speed is 10L / min, the powder feeding speed is 25g / min, and the swing range is 25mm.

Embodiment 3

[0038] Step (1), step (2) and step (4) are all identical with embodiment 1, only adjust each process parameter of plasma overlay welding in step (3) as follows: welding voltage is 28V, welding current is 160A, welding speed The speed is 40mm / min, the protective airflow speed is 12L / min, the powder feeding speed is 25g / min, and the swing range is 26mm.

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an iron-based amorphous coating and a preparation method of the iron-based amorphous coating through a plasma surfacing method. Alloy powder is prepared after being made up according to a specific proportion, and an alloy coating is formed on the surface of a substrate through surfacing conducted by a plasma surfacing machine, and technological parameters are as follows, the welding voltage is 25-30 V, the welding current is 140-200 A, the welding speed is 35-40 mm / min, the shielding gas flow speed is 10-12 L / min, the powder feeding speed is 15-25 g / min, and the swing amplitude is 20-30 mm; and after the plasma surfacing is completed, the coating is awaited to be naturally cooled to the room temperature, and the preparation of the iron-based amorphous coating is completed. An iron-based surfacing coating prepared through the plasma surfacing method is high in hardness, good in abrasion resistance, and can be widely applied to the manufacturing and restoring of metallurgical machinery and petrochemical equipment. In addition, the plasma surfacing method for preparing the coating is simple in process, easy and convenient to operate and free of weld preheating and post-weld slow cooling; the coating after being subjected to the surfacing is free of cracks and peeling, and the coating is formed well.

Description

technical field [0001] The invention belongs to the technical field of coating materials, in particular to an iron-based amorphous coating and a preparation method thereof. Background technique [0002] Since its discovery, iron-based amorphous alloys have attracted much attention due to their ultra-high strength, low material cost, excellent soft magnetic properties, and good wear and corrosion resistance. However, due to the poor room temperature plasticity of iron-based amorphous alloys and the difficulty in preparing large-scale iron-based amorphous alloys, their application as structural materials is limited. Therefore, the application of amorphous alloys as coatings has become a promising research direction. Because the amorphous alloy coating is relatively easy to realize, people have successively developed a series of amorphous coating preparation methods such as thermal spraying, laser cladding, and electroless plating. However, the bonding strength between the am...

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): B23K10/02C22C45/02
CPCB23K10/027C22C45/02
Inventor 李峰伟杜平王益山魏刚向东张会权张学梅王希军周文华左运峰
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com