Salt bath formula for treating high-speed steel air conditioning compressor blade by salt bath nitriding treatment and treatment method
An air-conditioning compressor, salt bath nitriding technology, applied in coating, metal material coating process, solid-state diffusion coating, etc., can solve the problems of no obvious improvement of high-speed steel infiltration rate, environmental pollution, complicated operation, etc. Achieve the effect of increasing the concentration ratio, not easy to white and bright layer, and good activity
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Embodiment 1
[0017] Potassium cyanate (KCNO) 25%, sodium cyanate (NaCNO) 15%, lithium carbonate (Li 2 CO 3 )5%, sodium carbonate (Na 2 CO 3 )15%, Potassium Carbonate (K 2 CO 3 ) 30%, sodium chloride (NaCl) 10%.
Embodiment 2
[0019] Potassium cyanate (KCNO) 25%, sodium cyanate (NaCNO) 15%, lithium carbonate (Li 2 CO 3 )5%, sodium carbonate (Na 2 CO 3 )15%, Potassium Carbonate (K 2 CO 3 ) 35%, sodium chloride (NaCl) 5%.
[0020] The component of the present invention is mainly made of cyanate and carbonate, and its reaction mechanism is that cyanate reacts with oxygen to generate nitrogen and carbonate, wherein the nitrogen atom penetrates into the matrix, and the cyanate consumed along with the reaction can be It is replenished by adding regeneration salt, which can be recycled.
[0021] CNO - +O 2 →[C]+[N]+CO 3 2-
[0022] CO 3 2- +Z(Regeneration Salt)→CNO -
[0023] The preparation method of the present invention is as follows:
[0024] Put urea, carbonate and other components into the crucible after being fully mixed and melted at a high temperature of 600°C and then kept for 2 hours before mass production can be carried out. Regeneration Salt can be obtained in the same way.
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