Water-based metal cleaner

A technology of base metal and cleaning agent, applied in the field of carbon steel pretreatment surface cleaning, can solve the problems of unsatisfactory cleaning effect, increased cost, large consumption of cleaning agent, etc., to speed up pickling and rust removal, prolong service life, improve The effect of the work environment

Inactive Publication Date: 2012-07-04
BEIJING JJRS TECH DEV +1
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the pickling process, due to the strong volatility of the pickling liquid, even if the production environment is ventilated by opening windows and using a strong exhaust device, the effect is very small. A large amount of acid mist is volatilized, which seriously affects the safety of other equipment in the workshop. The service life of equipment increases continuously, and at the same time, it poses a serious threat to the health of operating workers.
[0004] Along with the continuous development of metal pretreatment technology, water-based metal surface cleaners that can remove oil and rust simultaneously have also appeared in recent years, such as CN101440495A, CN101492823A, CN101165210A, CN1055961A, etc. all disclose an acidic water-based cleaning agent. Metal cleaning agent can remove oil and rust simultaneously in the same solution, but due to the defects of the formula and the proportion of each component, a large amount of cleaning agent is consumed during metal surface treatment, and the final cleaning effect is not ideal. also relatively slow

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

[0033] Highway corrugated guardrail beams are treated before hot-dip galvanizing.

[0034] A small amount of lubricating grease is added to the two processes of rolling forming and punching to reduce the wear in the process of the corrugated guardrail beam of the expressway, so there is a lot of oil on the surface, such as only pickling and rust removal, and the subsequent hot-dip plating Due to the influence of oil pollution in the zinc process, the bonding force between the coating and the substrate is insufficient, resulting in a low pass rate. The water-based metal cleaning agent provided by the invention is used to realize simultaneous degreasing and derusting of corrugated guardrail beams.

[0035] First, prepare a water-based metal cleaning agent according to the rust and oil stains on the surface of the corrugated guardrail beam. Add an appropriate amount of water, a certain concentration of industrial hydrochloric acid, phosphoric acid, oxalic acid, sodium lauryl sulf...

Embodiment 2

[0038] Pre-treatment for hot-dip galvanizing of angle iron in power lines.

[0039] First, prepare a water-based metal cleaning agent according to the rust and oil stains on the surface of the angle iron, add an appropriate amount of water, a certain concentration of industrial hydrochloric acid, phosphoric acid, oxalic acid, sodium lauryl sulfate SDS, and add 0-15 , Fatty alcohol polyoxyethylene ether AEO-9, add while stirring evenly. Finally, the concentration reaches industrial hydrochloric acid 190g / L, phosphoric acid 1.7g / L, oxalic acid 1g / L, sodium dodecyl sulfate SDS 1.5g / L, Pingpingjia 0-150.6g / L, fatty alcohol polyoxyethylene ether AEO -92g / L. The workshop temperature is 6 degrees Celsius.

[0040] Put the angle iron into a treatment tank equipped with water-based metal cleaning agent, soak it for 20 minutes, remove it and observe that there is no oil and rust on the surface of the angle iron, then put the angle iron into a clean water tank for about 3 minutes, Tak...

Embodiment 3

[0042] Pre-painting treatment of plumbing pipe fittings.

[0043] First, prepare a water-based metal cleaning agent according to the rust and oil stains on the surface of the plumbing pipe fittings. Add an appropriate amount of water, a certain concentration of industrial hydrochloric acid, phosphoric acid, tartaric acid, fatty alcohol polyoxyethylene ether sodium sulfate AES, and Pingping 0 to the treatment tank. -15. Fatty alcohol polyoxyethylene ether AEO-9, add and stir evenly, and finally make the concentration reach industrial hydrochloric acid 200g / L, phosphoric acid 3.4g / L, tartaric acid 2g / L, fatty alcohol polyoxyethylene ether sodium sulfate AES 1.5g / L, Pingpingjia 0-151.2g / L, fatty alcohol polyoxyethylene ether AEO-92.1g / L. The workshop temperature is 7 degrees Celsius.

[0044] Put the plumbing fittings into a treatment tank equipped with water-based metal cleaning agent, soak for 18 minutes, remove and observe that there is no oil and rust on the surface of the p...

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 provides a water-based metal cleaner, relating to a technology of pretreatment of processes of metal coating, electroplating, hot dipping coating and the like, in particular to a technology of cleaning the pretreatment surface of carbon steel. The water-based metal cleaner provided by the method comprises the following components of: 190 to 220 g/L of industrial hydrochloric acid, 1.7 to 8.5 g/L of phosphoric acid, 1 to 5 g/L of oxalic acid or 1 to 5 g/L of tartaric acid, 1 to 2.2 g/L of fatty alcohol polyoxyethylene lauryl ether sulfate sodium AES or 1.5 to 2 g/L of sodium dodecyl sulfate, 0.6 to 1.6 g/L of peregal 0-15, and 2 to 2.3 g/L of fatty alcohol-polyoxyethylene ether AEO-9. The cleaner can fast, effectively and synchronously complete two processes of deoiling and derusting on the metal pretreatment surface, can effectively prevent acid mist from volatilizing, prolongs the service life of equipment and improves the working environment of labor workers.

Description

technical field [0001] The invention relates to the technical field of pretreatment of metal phosphating, coating, electroplating and hot-dip plating, and provides a highly efficient, energy-saving and environment-friendly water-based metal cleaning agent, especially belonging to the technical field of carbon steel pretreatment surface cleaning. Background technique [0002] Since the quality of metal surface pretreatment directly affects the bonding force between coating or coating materials and metal base materials and the integrity of the coating, we have very strict requirements for metal surface pretreatment technology. The metal surface after coating or pre-plating treatment should meet the following requirements: 1) There is no oil on the surface; 2) There is no excess residual foreign matter; 3) There is no rust and oxide film; 4) The surface reaches a certain degree of roughness; 5) The surface is dry, moisture-free, and dust-free; 6) The metal matrix is ​​exposed a...

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): C23G1/02
Inventor 许雷
Owner BEIJING JJRS TECH DEV
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