Method for manufacturing porous preformed component of short fiber-reinforced metal matrix composite product
A technology of short fiber reinforcement and composite materials, which is applied in the field of mechanical parts manufacturing technology, can solve the problems of reducing the mechanical properties of products, poor uniformity of blank pore distribution, time-consuming and lengthy, etc., to shorten the high-temperature sintering time, avoid micropore sealing, reduce The effect of production costs
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Embodiment 1
[0045] The preparation method of the short fiber reinforced metal matrix composite product porous preform in this embodiment is as follows:
[0046] (1) Preparation of slurry
[0047] Add polyacrylamide, natural cellulose, water glass, and water into the container, stir with a blender until they are evenly dissolved, then add reinforcement phase materials and short fiber materials, stir with a blender to make a slurry, and let stand for 1 hour.
[0048] Reinforcing phase material, short fiber material, polyacrylamide, natural cellulose, water glass, water are mixed to make slurry by following weight ratio:
[0049] Reinforcement phase material 100
[0050] Short fiber material 70
[0051] Polyacrylamide 2
[0052] Natural Cellulose 6
[0053] water glass 8
[0054] water 350
[0055]The aforementioned reinforcing phase material is alumina particles, the aforementioned short fiber material is aluminum silicate short fibers, ...
Embodiment 2
[0066] In the slurry preparation process step of the present embodiment, the raw materials used and the weight ratio are as follows:
[0067] Reinforcement phase material 100
[0068] Short fiber material 40
[0069] Polyacrylamide 0.8
[0070] Natural cellulose 4.2
[0071] water glass 7
[0072] water 200
[0073] The above-mentioned reinforcing phase material is alumina particles, the above-mentioned short fiber material is aluminum silicate short fiber, and the aspect ratio L / D of the aluminum silicate short fiber is 10. Its processing step is identical with embodiment 1.
Embodiment 3
[0075] In the slurry preparation process step of the present embodiment, the raw materials used and the weight ratio are as follows:
[0076] Reinforcement phase material 100
[0077] Short fiber material 100
[0078] Polyacrylamide 3
[0079] Natural Cellulose 8
[0080] water glass 12
[0081] water 500
[0082] The aforementioned reinforcing phase material is alumina particles, the aforementioned short fiber material is aluminum silicate short fibers, and the aspect ratio L / D of the aluminum silicate short fibers is 100. Its processing step is identical with embodiment 1.
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