Mixed raw material for producing porous metal sintered product
First Claim
1. A mixed raw material composition for producing a porous metal sintered product comprising:
- 0.05 to 10% by weight of a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms;
0.05 to 5% by weight of a surfactant;
5 to 80% by weight of a metallic powder having an average particle size of 0.5 to 500 μ
m; and
a balance of water.
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Abstract
The present invention provides a mixed raw material which is capable of producing a porous metal sintered product having high porosity and fine and uniform pores. The mixed raw material for producing a porous metal sintered product is a composition including 0.05 to 10% of water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms, 0.05 to 5% of surfactant, 0.5 to 20% of water-soluble resin binder, 5 to 80% of metallic powder having an average particle size of 0.5 to 500 μm, optionally 0.1 to 40% of combustible agent for accelerating pore formation, and optionally, 0.1 to 15% of plasticizer consisting of at least one of polyhydric alcohols, oils and fats, ethers and esters, with a balance of water.
12 Citations
12 Claims
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1. A mixed raw material composition for producing a porous metal sintered product comprising:
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0.05 to 10% by weight of a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms;
0.05 to 5% by weight of a surfactant;5 to 80% by weight of a metallic powder having an average particle size of 0.5 to 500 μ
m; anda balance of water. - View Dependent Claims (2, 3, 4)
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5. A porous metal sintered article formed from a mixed raw material composition comprising:
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0.05 to 10% by weight of a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms; 0.05 to 5% by weight of a surfactant; 5 to 80% by weight of a metallic powder having an average particle size of 0.5 to 500 μ
m; anda balance of water. - View Dependent Claims (6, 7, 8)
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9. A process for forming a porous metal sintered article from a mixed raw material composition comprising the steps of:
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mixing 0.05 to 10% by weight of a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms;
0.05 to 5% by weight of a surfactant;
5 to 80% by weight of a metallic powder having an average particle size of 0.5 to 500 μ
m; and
a balance of water to obtain uniformly dispersed micelles;shaping the mixture; maintaining the mixture at a temperature of 5°
C. or higher to allow vaporization of the solvent;sintering and degreasing the mixture to form the porous metal sintered article having high porosity and uniform pores in a range of 5 to 100 μ
m. - View Dependent Claims (10, 11, 12)
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Specification