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

Special material for stainless steel substrate composite coating for thin valve plate and preparation method of special material

A composite coating and stainless steel technology, applied in the coating, metal material coating process, heating inorganic powder coating, etc., can solve the problems of coating material oxidation decomposition, poor coating adhesion, thin coating thickness, etc. Achieve the effect of increased coating thickness, not easy to fall off, and sufficient plastic deformation

Inactive Publication Date: 2015-04-29
瑞安市博业激光应用技术有限公司 +1
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention aims at the above-mentioned deficiencies existing in the existing valve surface modification coating and its preparation technology, and provides a stainless steel substrate for surface modification of thin valve plates, which uses stainless steel as the bonding phase and hard phase particles as the reinforcing phase. The special material for wear-resistant and corrosion-resistant composite coating and its efficient preparation method solve the problems of oxidative decomposition of coating material, workpiece deformation, thin coating thickness and poor coating adhesion in the existing preparation technology

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
  • Special material for stainless steel substrate composite coating for thin valve plate and preparation method of special material
  • Special material for stainless steel substrate composite coating for thin valve plate and preparation method of special material
  • Special material for stainless steel substrate composite coating for thin valve plate and preparation method of special material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific examples according to the technical solutions of the present invention, but the present invention is not limited to the following examples.

[0025] 316L stainless steel powder is selected as the binder phase of the composite coating and mixed with WC hard phase particles.

[0026] Among them: the content of each element in the composite coating is respectively: the content of each element in the composite coating is respectively: Cr8~9wt%, Ni 5~6wt%, Mo 1~2wt%, W 42~43wt%, C 2~ 3wt%, the balance is Fe.

[0027] Mix 316L stainless steel powder and WC hard phase particle powder by ball milling at a volume ratio of 7:3, the ball milling method is planetary ball milling, the ball milling speed is 400r / min, the ball milling time is 3h, and the substrate is made of stainless steel with a large area and thin valve plate, the valve plate area is 297cm 2 , The thic...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of material-surface modification, particularly to a special material for stainless steel substrates composite coating for a thin valve plate and a preparation method of the special material. According to the special material for the stainless steel substrate composite coating for the thin valve plate, stainless steel metal powder is used as a composite coating bonding phase, and the wear resistance is improved through the introduction of hard-phase particles, wherein the stainless steel metal powder is 316L stainless steel powder, the hard-phase particles are WC, and the composite coating comprises the following elements in percentage by weight: 8-9% of Cr, 5-6% of Ni, 1-2% of Mo, 42-43% of W, 2-3% of C, and the balance of Fe. The wear-resistant corrosion-resistant stainless steel substrate composite coating which is disclosed by the invention, is prepared by a method based on cold spraying, the characteristic of low-temperature deposition of the cold spraying is kept, so that undesirable phenomena, such as decomposition, oxidation, phase transition, crystal grain growth and the like, of the coating material, which are caused by high-temperature deposition techniques, such as laser cladding, hot spraying and the like, are avoided.

Description

【Technical field】 [0001] The invention relates to the field of material surface modification, in particular to a special stainless steel-based composite coating material for thin valve plates and a preparation method thereof. 【Background technique】 [0002] Valves are one of the important components of the equipment manufacturing industry and the main control components in fluid delivery systems, widely used in chemical, petrochemical, petroleum, papermaking, mining, electric power, food, pharmaceuticals, water supply and drainage, mechanical equipment, electronics , urban construction and other fields, including ball valves, butterfly valves, gate valves, globe valves, regulating valves and other types. [0003] The sealing performance of the valve is the most important technical performance index of the valve. The sealing part of the valve (such as the contact between the opening and closing parts and the two sealing surfaces of the valve seat, the joint between the packin...

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 Applications(China)
IPC IPC(8): C23C24/08C22C38/56C22C32/00
CPCC22C38/44C22C38/56C23C24/085
Inventor 姚建华李波周志勇
Owner 瑞安市博业激光应用技术有限公司
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