Method for making a composite
First Claim
1. A method for making a composite, comprising blending a mixture containing at least one metallic element of groups III-VI, VIII of the periodic table of the chemical elements and at least one compound of at least one of the elements of said groups taken individually or in combination, at least one nonmetallic element of groups III-VI of the periodic table of the chemical elements and at least one compound of at least one of the elements of said groups taken individually or in combination, and a binder component, compacting the mixture, placing the mixture into a synthesis zone, igniting the mixture with subsequent reaction of the components of the mixture under combustion conditions, and compacting the hot combustion products to obtain an end composite, characterized in that after ignition the mixture is cured till compaction of hot products during a period ranging from about 0.1 seconds to about 0.5 hours, and compacting the hot combustion products is carried out under pressure at an average rate of pressure rise ranging from about 10 to about 2000 kgf/cm2 ·
- s, with subsequent cure of the compacted product under isobaric conditions to complete homogenization of the composite and subsequent cooling.
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Accused Products
Abstract
The proposed invention is used for the manufacture from the obtained composite of cutting tools, hard alloy tooling, dies and other products. A method according to the invention involves preparing a mixture, compacting it, placing the mixture into a synthesis zone, igniting the mixture, with subsequent reaction of components of the mixture under combustion conditions. Then cure is carried out during a period ranging from about 0.1 seconds to about 0.5 hours, and the hot combustion products are compacted under pressure at an average pressure rise rate ranging from about 10 to about 2000 kgf/cm2.s, with subsequent cure of the compacted product under isobaric conditions to complete homogenization of the composite, with subsequent cooling thereof to obtain an end composite.
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Citations
19 Claims
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1. A method for making a composite, comprising blending a mixture containing at least one metallic element of groups III-VI, VIII of the periodic table of the chemical elements and at least one compound of at least one of the elements of said groups taken individually or in combination, at least one nonmetallic element of groups III-VI of the periodic table of the chemical elements and at least one compound of at least one of the elements of said groups taken individually or in combination, and a binder component, compacting the mixture, placing the mixture into a synthesis zone, igniting the mixture with subsequent reaction of the components of the mixture under combustion conditions, and compacting the hot combustion products to obtain an end composite, characterized in that after ignition the mixture is cured till compaction of hot products during a period ranging from about 0.1 seconds to about 0.5 hours, and compacting the hot combustion products is carried out under pressure at an average rate of pressure rise ranging from about 10 to about 2000 kgf/cm2 ·
- s, with subsequent cure of the compacted product under isobaric conditions to complete homogenization of the composite and subsequent cooling.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
Specification