| LI Gao-feng.Research and Development of High Efficiency Low Foam Water-based Cleaning Agent at Low Temperature for Cold-rolled Aluminum Sheet[J],46(12):290-294 |
| Research and Development of High Efficiency Low Foam Water-based Cleaning Agent at Low Temperature for Cold-rolled Aluminum Sheet |
| Received:March 27, 2017 Revised:December 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.12.045 |
| KeyWord:low temperature low foam corrosion inhibition water-based cleaning agent cold-rolled aluminum sheet |
| Author | Institution |
| LI Gao-feng |
Zhuji Chem Clean Co. Ltd, Zhuji , China |
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| Abstract: |
| The work aims to improve cleaning rate under low temperature and reduce foaming of water-based cleaning agent for cold-rolled aluminum sheet in winter. The cleaning rate and foam behavior of the system mixed with two kinds of block ether nonionic surfactant were studied at 3 ℃. In addition, the effects of compound system mixed with carboxylic acid amine corrosion inhibitor and alkyl phosphate OPS75E on steel and aluminium products were investigated as well. A water-based cleaning agent featuring in low foam at low temperature and high efficiency was developed, the optimum formula (on the basis of mass fraction) was: anhydrous sodium metasilicate 0.8%~2%, sodium gluconate 5%~8%, carboxylic acid amine corrosion inhibitor 2%~4%, OPS75E 1%~3%, PAA 1%~3%, TPP 3%~5%, NF7305 5%~8%, RPE3110 2%~4% and water 63%~80.2%. At the temperature above 3 ℃, it did not foam and could inhibit foam caused by oil stain saponification during the cleaning process. The cleaning rate on cold-rolled aluminium strip was over 99% provided with applied concentration of 3% and cleaning time of 2 min. The cleaning agent has favorable cleaning effect, exhibits excellent corrosion inhibition on carbon steel and aluminium products, and its properties meets the standard JB/T 4323.1—1999. |
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