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Invention Grant
CN108660447B 用于耐候钢表面锈层稳定化的预处理液及预处理方法 有权

用于耐候钢表面锈层稳定化的预处理液及预处理方法
Abstract:
本发明涉及一种工业大气环境下耐候钢表面锈层稳定化的预处理液及预处理方法，属于金属腐蚀与防护技术领域，本发明旨在提供一种用于耐候钢表面锈层稳定化的预处理液及预处理方法，用以解决现有技术中锈层稳定化技术并未针对工业大气腐蚀和海洋大气腐蚀这两种腐蚀环境分别进行设计不用的预处理液进行防腐的技术问题。本发明提供了一种用于耐候钢表面锈层稳定化的预处理液，预处理液中各化学组分及其质量分数为：Cr2(SO4)3：0.5～2％、FeSO4：0.3～1.2％、CuSO4：0.1～0.6％、NaHSO3：0.3～1.2％和NiSO4：0.2～1.0％，余量为H2O。本发明提供的预处理液及预处理方法实现了工业大气环境下耐候钢表面锈层稳定化，避免了耐候钢的严重腐蚀问题，确保了我国耐候钢钢材的无腐蚀储存。
Abstract(English):

The invention relates to a pretreatment solution and method for stabilization of a weathering steel surface rust layer in industrial atmospheric environment, and belongs to the technical field of metal corrosion and protection. The technical problems that different pretreatment solutions for corrosion prevention are not designed according to industrial atmospheric corrosion environment and marineatmospheric corrosion environment through the rust layer stabilization technology in the prior art separately are solved. The pretreatment solution for stabilization of the weathering steel surface rust layer comprises, by mass, 0.5%-2% of Cr(SO4)3, 0.3%-1.2% of FeSO4, 0.1%-0.6% of CuSO4, 0.3%-1.2% of NaHSO3, 0.2%-1.0% of NiSO4 and the balance H2O. According to the pretreatment solution and methodprovided by the invention, the stabilization of the weathering steel surface rust layer in the industrial atmospheric environment is achieved, and the severe corrosion problem of weathering steel isavoided; and the non-corrosive storage of the weathering steel in China is ensured.

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