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Derusting and degreasing of low carbon steel The traditional derusting and degreasing process of low carbon steel is mainly based on the treatment agent of cyanide formula. The cyanide decomposes when the temperature reaches 50 ℃, so the temperature should not be too high during treatment, which will reduce the treatment efficiency. Moreover, such treatment agent has the disadvantages of high toxicity, strong pollution, extremely difficult operation and treatment. However, the use of sodium glucoheptylate formula increases the treatment temperature, and under the synergistic effect with caustic soda, The efficiency of metal surface treatment is greatly improved.
The sodium glucoheptylate produced by the above process can prevent the deposition of the electroplating solution and make the electroplating coating more compact and bright. Under the synergistic effect of sodium glucoheptylate and caustic soda, the existing paint on the steel surface can be effectively removed for repainting, and the effect of corrosion and scale inhibition can also be achieved.