Subjecting materials to high pressure

Details Subjecting materials to high pressure Subjecting materials to high pressure

1974-05-30

1976-03-30

Flint, Jr., J. Howard

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

425 77, 425DIG5, 425DIG26, B30B 1132

Patent

active

039475417

ABSTRACT:
Method and Apparatus for subjecting material to extreme compression, for instance in the making of artificial diamonds. The material is enclosed within a cluster of anvils. When pressure pads converge to bear upon the clustered anvils so that they slide against each other and the cluster contracts, the material within is compressed. The reaction of each anvil with its pressure pad is directed generally towards the material to be compressed but lies out-of-parallel with the interfaces of sliding movement of that anvil with its neighbours. The pad-anvil reaction can thus be resolved into components urging each anvil into contact with its neighbours, and thus supporting the anvil against fracture due to the high compression it undergoes along the pad-specimen axis.

REFERENCES:
patent: 3100912 (1963-08-01), Lloyd et al.
patent: 3105994 (1963-10-01), Gerard et al.
patent: 3107395 (1963-10-01), Bundy
patent: 3159876 (1964-12-01), Hall
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patent: 3231935 (1966-02-01), Brayman
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patent: 3339886 (1966-03-01), Tyrner
patent: 3555607 (1971-01-01), Epain et al.
Kumazawa et al., article, "Guide Blocks and Compressible Pads for the Practical Operation of Multiple-Anvil Sliding System for the Production of High Pressure," in High Temperatures--High Pressures, 1972, Vol. 4, pp. 293-310.

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