Supercharge Your Innovation With Domain-Expert AI Agents!

Metal member with anticorrosive coating and preparation method thereof

A technology of metal components and anti-corrosion layers, which is applied in the field of metal components coated with anti-corrosion layers and its preparation, can solve the problems of metal components corrosion resistance, poor corrosion resistance time, cost increase, etc., and achieve resistance to hydrogen sulfide corrosion , Enhanced ability to resist external damage and strong stability

Inactive Publication Date: 2009-02-11
王丹
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technologies to solve the corrosion problem of metal components generally have the problems of poor corrosion resistance or short corrosion resistance time or high cost, especially the technology using petroleum products. With the rapid rise of petroleum prices, the cost of implementing this technology is also increasing. Increase

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

[0040] A. React natural crystal sulfur S8 with a modifier to generate polymer monomers, which are then polymerized into high molecular sulfur polymers with a network structure. The specific method is to heat the sulfur to 120°C to melt, mix it with the modifier, and continue heating to form a sulfur polymer. The modified sulfur polymer has strong stability, can resist salt corrosion, and is resistant to the attack of sulfate-reducing bacteria and other microorganisms, and is resistant to hydrogen sulfide corrosion. At the same time, the sulfur polymer has good insulation and can block the conductive corrosion of soil. . Modifiers can be aromatic hydrocarbons, such as styrene, vinyltoluene, methylstyrene, etc., or diene (genus) hydrocarbons or olefinic hydrocarbons, such as: 2,3- Indane, Dicyclopentadiene; Dicyclopentadiene, Dipentene. The modifier may be one or a combination of two or more of the above compounds. The weight of modifier is 2% by weight of sulfur.

[0041] B...

Embodiment 2

[0043] A. The difference from step A in Example 1 is that the sulfur adopts petroleum refining or natural gas desulfurization sulfur, and the weight of the modifier is 40% of the weight of the sulfur. The modification process needs to be heated to 150 ° C with the natural sulfur. The curing agent is mixed and heated continuously to obtain a polymer of sulfur. Then mix inorganic solid powder into the obtained sulfur polymer. The inorganic solid powder is preferably the ash after coal combustion, and the cost is low. You can also choose steel slag quartz sand, ash or construction waste after garbage incineration, etc. The main purpose It is to increase the density and strength of the polymer of sulfur. The weight of the inorganic solid powder is 5% of the weight of the sulfur polymer, and the fineness of the inorganic solid powder is 50 mesh.

[0044] B. Spraying the mixture of the molten sulfur polymer obtained in step A and the inorganic solid powder to the surface of the met...

Embodiment 3

[0046] A, difference with the step A of embodiment 2 is that the weight of modifier is 3% of the weight of sulfur, and the heating melting temperature of sulfur is 200 ℃; The weight of inorganic solid powder is 50% of the polymer weight of sulfur, The fineness of the inorganic solid powder is 300 mesh.

[0047] B. Coat a layer of resin adhesive on the surface of the metal component. The resin adhesive can be epoxy resin adhesive, polyurethane resin adhesive, unsaturated polyester adhesive, phenolic resin adhesive, acrylate Adhesives or inorganic adhesives, etc. Before the layer formed by the resin binder is solidified, the mixture of the molten sulfur polymer and the inorganic solid powder obtained in step A is sprayed onto the layer formed by the resin binder to form an anti-corrosion layer. The thickness of the anticorrosion layer is 0.2 mm, and 1 / 3 to 2 / 3 of the thickness of the anticorrosion layer is fused with the resin adhesive layer. The resin adhesive layer can incre...

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
thicknessaaaaaaaaaa
pressureaaaaaaaaaa
Login to View More

Abstract

In order to solve the problems that the existing metal members are not anti-corrosion and the anti-corrosion technologies have high cost, the invention provides an anti-corrosion and low-cost member coated with an anti-corrosive layer. The surface of the metal member is coated with an anti-corrosive layer, the method for coating the anti-corrosive layer comprises the following steps: (A) sulfur and a modifier are mixed for modification to form a sulfur polymer, the modifier is an aromatic hydrocarbon and / or a diolefinic hydrocarbon and / or an olefinic hydrocarbon, and the weight of the modifier accounts for 2-40% of the weight of the sulfur; (B) the sulfur polymer obtained from the step A is melted, and then is coated on the surface of the metal member to form the anti-corrosive layer. The method can be applied to the metal members used at places where corrosion is easy to happen and has the advantages of good anti-corrosion effect and low cost.

Description

technical field [0001] The invention belongs to the anti-corrosion technology of metal components, in particular to a metal component coated with an anti-corrosion layer and a preparation method thereof. Background technique [0002] In industrial production, metal components exposed to various environments often corrode, especially metal components placed underground or in water, this phenomenon is more obvious. Metal components are sensitive to salt, not only acid rain and acidic soil in the atmosphere corrode metal components, but also some microorganisms are also corrosive to metal components. When the pipe trench is backfilled with soil, there is a large amount of oxygen and water, which is conducive to the reproduction of sulfate-reducing bacteria and increases the probability of corrosion damage to the pipe. Hydrogen sulfide is very serious for corrosion of metal pipes in ponded swamps and lowlands. In addition, when the salt content in seawater or soil is high, 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 Applications(China)
IPC IPC(8): C23F15/00C09D201/02C09D5/08
CPCC23C28/00C23C30/00C09D5/084C23C26/02
Inventor 王丹
Owner 王丹
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