Hypothermal nontoxic phosphatization liquid containing accelerant of hydroxylamine sulfate, and preparation method

A technology of hydroxylamine sulfate and accelerator, which is applied in the field of surface chemistry, can solve the problems of not getting rid of nitrite, etc., and achieve the effects of being beneficial to the health of workers, reducing the amount of sediment, and reducing environmental pollution
CN1563491AInactive Publication Date: 2005-01-12大连理工大学技术转移中心有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
大连理工大学技术转移中心有限公司
Publication Date
2005-01-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

A low temperature atomic phosphide liquor containing hydroxylamine sulfate accelerant is composed of HNO3: 10-15ml / L, H3PO412-18ml / L, ZnO 8-12G / l, CuSO4, 5H2O 0.6-1.0G / l, HAS 2.0-4.0g / L, Na2 MoO4 2H2o 0.03-0.05%g / L, NaC103 0.8-1.3G / l, C6H8O7. H2O 2.0-3.0g / L characterizing in taking hydroxylamine sulfate accelerant as the master accelerant matched with other additives.
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Description

technical field

[0001] The invention belongs to the technical field of surface chemistry. Used for surface treatment of steel before painting. Background technique

[0002] Phosphating is a surface chemical technology, which has broad application and development prospects in industries such as automobiles, chemicals, ships, aerospace and household appliances. Based on the requirements of energy saving, environmental protection and attention to workers' health, low-temperature low-slag phosphating, environmental protection and non-toxic phosphating are the main research directions in the field of phosphating, and it is also an inevitable trend.

[0003] Studies have shown that the accelerator is one of the important factors that determine the growth rate and quality of the phosphating film, especially the low and room temperature phosphating solution. At present, the most widely used and most effective accelerator in industry is nitrite. However, due to the high toxicity o...

Claims

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