Preparation method of powder metallurgy friction material for deep hole drilling machine
A powder metallurgy and friction material technology, applied in the field of powder metallurgy materials to achieve the effect of good mechanical properties and friction properties
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Embodiment 1
[0019] The preparation method of powder metallurgy friction material for deep hole drilling machine comprises the following steps:
[0020] Step 1, in parts by weight, take 10 parts of silicon carbide, add to 10wt% sodium hydroxide solution to soak, heat, keep warm, filter, dry the solid, soak in amino resin, take it out and use 30vol.% The ethanol aqueous solution is cleaned and dried to obtain modified silicon carbide;
[0021] Step 2, in parts by weight, take 10 parts of boron nitride, 3 parts of water, and 1 part of propylene glycol, and mix them to obtain a mixture;
[0022] Step 3, mixing the modified silicon carbide obtained in step 1 with the mixture obtained in step 2, drying, and ball milling to obtain prefabricated powder;
[0023] Step 4, in parts by weight, 20 parts of prefabricated powder, 3 parts of cuprous sulfide, 1 part of tin powder, 2 parts of nickel powder, 1 part of molybdenum sulfide, 2 parts of tungsten powder, 1 part of aluminum phosphide, and 2 parts...
Embodiment 2
[0026] The preparation method of powder metallurgy friction material for deep hole drilling machine comprises the following steps:
[0027] Step 1, in parts by weight, take 14 parts of silicon carbide, add to 10wt% sodium hydroxide solution to soak, heat, keep warm, filter, dry the solid, soak in amino resin, take it out and use 30vol.% The ethanol aqueous solution is cleaned and dried to obtain modified silicon carbide;
[0028] Step 2, in parts by weight, take 13 parts of boron nitride, 4 parts of water, and 2 parts of propylene glycol, and mix them to obtain a mixture;
[0029] Step 3, mixing the modified silicon carbide obtained in step 1 with the mixture obtained in step 2, drying, and ball milling to obtain prefabricated powder;
[0030] Step 4, in parts by weight, 24 parts of prefabricated powder, 6 parts of cuprous sulfide, 2 parts of tin powder, 4 parts of nickel powder, 4 parts of molybdenum sulfide, 5 parts of tungsten powder, 2 parts of aluminum phosphide, 6 parts...
Embodiment 3
[0033] The preparation method of powder metallurgy friction material for deep hole drilling machine comprises the following steps:
[0034] Step 1, in parts by weight, take 20 parts of silicon carbide, add to 10wt% sodium hydroxide solution to soak, heat, keep warm, filter, dry the solid, soak in amino resin, take it out and use 30vol.% The ethanol aqueous solution is cleaned and dried to obtain modified silicon carbide;
[0035] Step 2, in parts by weight, take 20 parts of boron nitride, 5 parts of water, and 3 parts of propylene glycol, and mix them to obtain a mixture;
[0036] Step 3, mixing the modified silicon carbide obtained in step 1 with the mixture obtained in step 2, drying, and ball milling to obtain prefabricated powder;
[0037] Step 4, in parts by weight, 30 parts of prefabricated powder, 7 parts of cuprous sulfide, 4 parts of tin powder, 5 parts of nickel powder, 5 parts of molybdenum sulfide, 6 parts of tungsten powder, 4 parts of aluminum phosphide, 7 parts...
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