Method of preparing high-performance powder metallurgy product by coating alloy powder with organic matter
A technology of alloy powder and powder metallurgy, which is applied in the field of preparing high-performance powder metallurgy products coated with organic matter, can solve the problems of poor mechanical properties, low oxygen content, and increased cost of alloy parts, and achieve the goal of improving mechanical properties and suppressing defects The effect of producing and reducing pores
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Embodiment example 1
[0021] A stearic acid coated TC4 titanium alloy powder for gel casting.
[0022] (1) Prepare the coating solution: dissolve 25g of stearic acid in 500ml of dichloromethane, stir evenly, and prepare an organic coating solution with a solution concentration of 0.05g / ml;
[0023] (2) Powder coating: according to the mass percentage, the quality of the organic coating is 0.1% of the mass of the TC4 titanium alloy powder, weigh 100 g of the hydrogenated dehydrogenation TC4 titanium alloy powder of 45 μm, and measure the organic coating in step (1). Solution 200ml, mix the solution and titanium alloy powder evenly, so that the solution soaks all the powder, and the whole process is carried out under an argon atmosphere in a glove box;
[0024] (3) Powder treatment: Put the coated powder in a vacuum drying oven and dry at 30°C for 90 minutes, then take it out, put the dried coated powder into a ball mill jar and fill it with argon for atmosphere protection, Then the ball mill jar is...
Embodiment example 2
[0028] A pure copper powder coated with polyethylene glycol for compression molding.
[0029] (1) Prepare the coating solution: dissolve 10 g of polyethylene glycol in 1000 ml of water, stir well, and prepare an organic coating solution with a concentration of 0.01 g / ml;
[0030] (2) Powder coating: according to the mass percentage, the mass of the organic coating is 0.5% of the mass of the pure copper powder, weigh 50 g of 25 μm water atomized pure copper powder, and measure the organic coating solution in step (1) 25ml, add 100ml of deionized water to the weighed organic solution, then mix the solution with the titanium alloy powder evenly, so that the solution soaks all the powder, and the whole process is carried out under an argon atmosphere in a glove box;
[0031] (3) Powder treatment: Put the coated powder in a vacuum drying oven and dry it at 40°C for 90 minutes, then take it out, put the dried coated powder into a ball mill jar and fill it with argon for atmosphere p...
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