Lubricant special for stainless steel in powder metallurgy and preparation method thereof
A technology of powder lubricants and stainless steel, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of reducing the effective life of the mold and increasing the difficulty of processing, so as to prolong the service life, improve the corrosion resistance, and increase the theoretical density. Effect
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Embodiment 1
[0013] Step 1: Mix the raw materials including arachidic acid amide 10%, vinyl bis-ester amide 20%, amino silicone oil 2%, graphite 2%, and paraffin wax 5 by weight at room temperature;
[0014] Step 2: Heat the mixed materials to 130°C under the condition of a vacuum of 0.02MPa, keep the temperature for 50 minutes and then cool to room temperature to obtain a mixture I;
[0015] Step three: adding zinc stearate to the mixture I obtained in step two, heating to 150° C., keeping the temperature for 40 minutes and cooling to room temperature, and then grinding, pulverizing and sieving to obtain the lubricant.
Embodiment 2
[0017] Step 1: Mix the raw materials including arachidic acid amide 40%, vinyl bis-ester amide 30%, amino silicone oil 8%, graphite 8%, and paraffin wax 9% by weight at room temperature;
[0018] Step 2: Heat the mixed materials to 160°C under the condition of a vacuum degree of 0.03MPa, keep the temperature for 60 minutes and then cool to room temperature to obtain a mixture I;
[0019] Step three: adding lithium stearate to the mixture I obtained in step two, heating to 150° C., keeping the temperature for 60 minutes and cooling to room temperature, then grinding, pulverizing and sieving to obtain the lubricant.
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