公开(公告)号：US3597512A

公开(公告)日：1971-08-03

申请号：US3597512D

申请日：1968-03-29

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： TOBIN JOSEPH M ,  FLEISCHER LEONARD R

IPC: C04B35/56

CPC classification number: C04B35/645 ,  C04B35/56

Abstract: A METHOD OF CONTROLLING THE GRAIN SIZE OF A REFRACTORY METAL CARBIDE BODY COMPRISING RECRYSTALLIZED CRYSTALLITES OF THE CARBIDE OF A METAL OF GROUPS IV-B AND V-B OF THE PERIODIC TABLE WHEREIN A BODY OF ONE OR MORE REFRACTORY METAL CARBIDES SELECTED FROM THE CARBIDES OF THE GROUP CONSISTING OF TI, ZR, HF, V, NB, AND TA IS AS AN ELEVATED TEMPERATURE BETWEEN A POINT OF FROM ABOUT ONEHALF OF THE MELTING POINT OF THE CARBIDE TO A POINT JUST BELOW THE SOLIDUS TEMPERATURE; AND WHILE HOLDING THE TEMPERATURE SUBSTANTIALLY CONSTANT SUBJECTING THE CARBIDE TO A MECHANICAL STRAIN IN AN AMOUNT EQUAL TO AT LEAST THE CRITICAL STRAIN NECESSARY THE STRESS AND ANNEALING THE STRAINED BODY AT AN ELEVATED TEMPERATURE IN THE RANGE OF FROM THE STRAINING TEMPERATURE BUT NOT EXCEEDING THE SOLIDUS TEMPERATURE (THE TEMPERATURE AT WHICH A LIQUID PHASE IS FORMED) FOR A PERIOD OF TIME SUFFICIENT TO CAUSE COMPLETE RECRYSTALLIZATION OF THE CARBIDE, WHEREBY THE DESIRED RECRYTALLIZED GRAIN SIZE VARIES INVERSELY WITH THE AMOUNT OF STRAIN APPLIED TO THE CARBIDE.

公开(公告)号：US3613655A

公开(公告)日：1971-10-19

申请号：US3613655D

申请日：1969-06-30

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： TOBIN JOSEPH M ,  TAUSON PETER O ,  FLEISCHER LEONARD R ,  EBNER HARRY F

IPC: F41B3/04 ,  F41B15/00

CPC classification number: F41B3/04

Abstract: A centrifugal gun for discharging projectiles at very rapid velocities which gun includes a rotatable impeller having a center of rotation and a peripheral path of movement and having a continuous trackway along which the objects are propelled and which leads from the point of insertion at or near the rotation center to the exit point at the peripheral path. The trackway has an outer concave section and an inner convex section, with the outer peripheral portion of the concave section facing the direction of rotation of the impeller.

公开(公告)号：US3507616A

公开(公告)日：1970-04-21

申请号：US3507616D

申请日：1967-08-14

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： TOBIN JOSEPH M ,  FLEISCHER LEONARD R

IPC: C01B31/30 ,  C04B35/56 ,  B01J17/00 ,  B01J17/02

CPC classification number: C04B35/5622 ,  C01B32/90 ,  C04B35/5607 ,  C04B35/5611