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

Self-lubrication abrasion-proof plunger surface and preparation method

A wear-resistant column and self-lubricating technology, which is applied in coatings, metal material coating processes, etc., can solve problems such as bubbling, cracking, shedding, environmental pollution, etc., to improve the strength and toughness of the matrix, and improve the resistance to adhesive wear High performance, not easy to burn out

Active Publication Date: 2015-08-26
陕西云泰工业集成科技有限公司 +1
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrochrome plating process seriously pollutes the environment; electrochrome plating is easy to cause bubbling, cracking, and falling off in the harsh environment where the oilfield water injection pump is located

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The surface of a self-lubricating and wear-resistant plunger is formed by cladding alloy powder on the surface of the plunger to form a layer of alloy coating; the thickness of the alloy coating is 0.3mm-2.5mm, the hardness is 45HRC-65HRC, and the surface roughness Ra 0.1 ~0.6 μm.

Embodiment 2

[0015] On the basis of Example 1, the alloy powder is composed of the following chemical elements by mass percentage: carbon 0.2%, chromium 13%, nickel 2%, manganese 1%, molybdenum 1%, boron 1.5%, silicon 0.5%, Rare earth oxide 2%, tungsten carbide 5%, the rest is iron.

Embodiment 3

[0017] On the basis of Example 1, the alloy powder is composed of the following chemical elements by mass percentage: carbon 5%, chromium 15%, nickel 8%, manganese 1.5%, molybdenum 3%, boron 2%, silicon 1%, Rare earth oxides are 3%, tungsten carbide is 30%, and the rest is iron.

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
surface roughnessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a self-lubrication abrasion-proof plunger surface and a preparation method. The method comprises the step of melting and covering alloy powder on the plunger surface to form an alloy cladding, wherein the thickness of the alloy cladding is 0.3-2.5 mm, the hardness of the alloy cladding is 45-65HRC, and the surface roughness of the alloy cladding is Ra 0.1-0.6 micron; the alloy powder comprises the following chemical components in mass percentage: 0.2%-7.5% of carbon, 13%-18% of chromium, 2%-14% of nickel, 1%-2% of manganese, 1%-5% of molybdenum, 1.5%-2.5% of boron, 0.5%-1.5% of silicon, 2%-5% of rare earth oxide, 5%-45% of tungsten carbide and the balance of iron. According to the preparation method disclosed by the invention, after the alloy powder is melted and coated on the carbon steel surface of a base material through a laser cladding technology, crude processing is performed through turning, then surface finishing is performed according to an ultrasonic calendering technology, and the plunger surface with self-lubrication, abrasion resistance and corrosion resistance is obtained. The plunger surface has the characteristics of high hardness and abrasion resistance, and favorable corrosion resistance and self-lubrication, and the manufacturing technology is non-pollution to environment.

Description

technical field [0001] The invention relates to a plunger-type plunger surface, in particular to a self-lubricating and wear-resistant plunger surface and a preparation method. Background technique [0002] The plunger is one of the key parts of the plunger pump. Most of the water used in oilfield injection pumps is untreated sewage after extraction, which contains crude oil, suspended solid particles, inorganic salt ions, bacteria, etc. In addition, the PH value of the injected water is high. During the operation of the plunger pump, the plunger is always in contact with the liquid and rubs against the packing. Because the plunger pump works under severe working conditions such as alternating pressure of liquid flow, flow scouring, frictional temperature rise, mechanical alternating stress, etc., the surface of the plunger wears and fails in the form of strain, corrosion and peeling. , resulting in serious leakage, low pump efficiency and frequent maintenance. At present...

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): C23C24/10C22C38/58C22C38/54B22F1/00
Inventor 张军
Owner 陕西云泰工业集成科技有限公司
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