Treatment process for removing grease from inner surface of cold rolled tube

A treatment process and inner surface technology, applied in the field of treatment technology for removing grease on the inner surface of cold-rolled pipes, can solve problems such as adverse effects of equipment, strong voltage and current, burning through pipes, etc., achieving good cleaning effect and low cleaning space requirements , the effect of improving production efficiency

Inactive Publication Date: 2011-05-04
JIANGSU WEIHUA PRECISION ALLOY
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problems are: one is the foam problem. The degreasing agent of electrolytic cleaning is alkaline and contains a certain amount of surfactant. Foam may be generated during the high-speed running of the strip steel and the rinsing after degreasing. The overflow of foam will

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

Example Embodiment

[0012] A treatment process for removing grease on the inner surface of cold-rolled pipes and tubes, including the following steps:

[0013] A) Liquid preparation----mix surfactant, lye, solvent and water in a certain proportion according to the amount of grease on the surface of the pipe;

[0014] B) Degrease --- Use a pump, a cleaning fluid storage tank, and a quick connection hose to connect the pipes in parallel, and then add the mixture prepared in step A) to the cleaning fluid storage tank, and turn on the circulating pump to clean the pipes cyclically ;

[0015] C) Clean water cleaning --- Follow step B) to replace the mixed liquid with clean water for cyclic cleaning;

[0016] D) Blowing---First use dry compressed air to purge the water on the inner surface, then put the soft ball into the tube, and use the air compressor to blow repeatedly until it is dried.

[0017] The present invention has the following advantages: first, because it does not use electrolytic cleaning, there...

Example Embodiment

[0018] Example two

[0019] A treatment process for removing grease on the inner surface of cold rolled pipes with the same embodiment. The difference is that the surfactant in the mixed solution obtained in step A) includes dispersant, detergent, emulsifier and enhancer. Solvent, the dispersant is sorbitan monooleate (C 24 H 44 O 6 ), coconut oil fatty acid diethanolamide (C 11 H 23 CON(CH 2 CH 2 OH) 2 ], the emulsifier is alkylphenol polyoxyethylene (10) ether [C 8 H 17 C 6 H 4 O(CH 2 CH 2 O) 10 H], the solubilizer is ethylenediaminetetraacetic acid (EDTA); the lye is sodium hydroxide or potassium hydroxide; the solvent is one or more of toluene, ethanol, o-chlorotoluene or xylene. The mass percentage ratio of surfactant, lye, solvent and water is 3% of surfactant, 5% of lye, 3% of solvent, and water as the balance.

Example Embodiment

[0020] Example three

[0021] A treatment process for removing grease on the inner surface of cold-rolled pipes as in Example 1. The difference is that the mass percentage ratio of the surfactant, lye, solvent, and water is 6% surfactant, alkali Liquid 8%, solvent 3.5%, water as the balance.

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

The invention relates to a treatment process for removing grease from the inner surface of a cold rolled tube. The process comprises the following steps of: preparing liquid, removing grease, washing with clean water and purging. The treatment process has the advantages that: as an electrolytic cleaning method is not adopted, the problem of short circuit is avoided; self-developed equipment instead of special equipment is adopted, and the requirement on washing space is low; the washing effect is good and the tube is not damaged; and a plurality of tubes can be washed simultaneously and production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a surface treatment process for cold-rolled pipes, in particular to a treatment process for removing grease on the inner surface of cold-rolled pipes. technical background [0002] The pipes used in nuclear power plants must have super corrosion resistance, and the corrosion resistance of pipes depends not only on the performance of the material itself, but also on the surface properties of the material. The surface defects of the pipes greatly affect the performance of the pipes in the nuclear radiation environment. stress corrosion performance. During the production process of cold-rolled pipes, some impurities such as grease and dust always remain on the surface of cold-rolled pipes. If the surface of the cold-rolled pipe is not cleaned cleanly, during the subsequent hydrogen atmosphere heat treatment process, the residual grease will be carbonized at high temperature, causing carburization on the surface of the pipe, which...

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
IPC IPC(8): C23G1/14
Inventor 万柏方刘奎高明张建国万捷张龙缪栋
Owner JIANGSU WEIHUA PRECISION ALLOY
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