Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Patent
1985-01-25
1987-05-19
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
425412, B22F 300
Patent
active
046663894
ABSTRACT:
There is disclosed a method and apparatus for forming compacts from finely divided solid particles or a mixture of fine and coarse particles in a dry, semi-dry or plastic state by the application of ultra-high pressures in the range of 100,000 psi and greater while preventing delamination upon extraction of the finished product. A die is provided that has a plurality of die segments resting on a base to form a die chamber. A retainer is secured to the base, and surrounds and engages the die segments to prevent movement of the die segments during the forming process. Means are provided for substantially instantaneous disengagement of the retainer from all of the die segments.
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Article by M. Relis and I. Soroka entitled "Prediction of Standard Compressive Strength of Cement by Means of Accelerated Testing", from Materiaux et Constructions (France), vol. 7, No. 38, pp. 103-109, 1974.
Article by M. Relis and I. Soroka, "Effect of Added Gypsum on Compressive Strength of Portland Cement Clinker", Ceramic Bulletin, vol. 62, No. 6, pp. 695-703, 1983.
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Thesis by M. Relis for the Degree of Master of Science in Civil Engineering entitled "Early Evaluation of the Standard and Non-Standard Strength of Cement by Accelerated Tests", dated Apr. 1972, (Abstract only).
Abstract portion of a thesis submitted by M. Relis for the degree of Doctor of Science entitled "Structure of Low Porosity Cement Stone and its Mechanical and Physical Properties", dated Mar. 1981.
Ledbetter William B.
Relis Matityahu
Flint, Jr. J. Howard
The Texas A&M University System
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