公开(公告)号：US3563080A

公开(公告)日：1971-02-16

申请号：US3563080D

申请日：1967-08-11

Applicant: NAT RES DEV

Inventor： ALEXANDER JOHN MALCOLM ,  LENGYEL BELA

IPC: B01J3/04 ,  B21C23/00 ,  B21C27/00 ,  F15B21/00

CPC classification number: B01J3/04 ,  B21C23/007 ,  B21C23/008 ,  B21C27/00 ,  F15B21/00

Abstract: A HIGH PRESSURE CONTAINER, FOR EXAMPLE FOR HYDROSTATIC EXTRISON HAS A PLUNGER FOR GENERATING HIGH HYDROSTATIC PRESSURE IN THE CONTAINE AND ALSO HAS A MOVABLE WALL PORTION DEFINED BY A SURFACE OF A FLOATING MOVABLE MEMBER. AN OPPOSITE SURFACE OF THE FLATING MEMBER OF LARGER AREA FORMS A MOVABLE WALL SURFACE IN A LOWER PRESSURE CHAMBER. CONSEQUENTLY, THE PRESSURE IN THE LOWER PRESSURE CHAMBER IS ALWAYS LESS THAN BUT PROPORTIONAL TO THE PRESSURE IN THE HIGH PRESSURE CHAMBNER. THE LOWER PRESSURE THUS GENERATED IS APPLIED AROUND THE OUTER CYLINDRICAL WALL SURFACE OF THE HIGH PRESSURE CHAMBER. IN THIS WAY, TENSILE HOOP STRESSES IN THE CYLINDRICAL WALL CAN BE ELIMINATED THROUGHOUT A WORKING CYCLE WITHIN THE HIGH PRESSURE CHAMBER. THE LIFE OF THE HIGH PRESSURE CHAMBER IS INCREASED SINCE THE RISK OF FATIGUE FAILURE IS REDUCED.

公开(公告)号：US3538730A

公开(公告)日：1970-11-10

申请号：US3538730D

申请日：1967-12-11

Applicant: NAT RES DEV

Inventor： ALEXANDER JOHN MALCOLM ,  LENGYEL BELA

IPC: B21C23/00 ,  G21C1/02 ,  G21C1/03 ,  G21C1/30 ,  G21C19/00 ,  G21C19/19 ,  B21C23/08

CPC classification number: B21C23/008 ,  G21C1/02 ,  G21C1/03 ,  G21C1/30 ,  G21C19/00 ,  G21Y2002/206 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/34 ,  Y02E30/35 ,  Y10S376/91 ,  Y10S376/911

公开(公告)号：US3587270A

公开(公告)日：1971-06-28

申请号：US3587270D

申请日：1968-09-03

Applicant: NAT RES DEV

Inventor： ALEXANDER JOHN MALCOLM ,  ASHFORD PETER GUY

IPC: B21C23/00 ,  B21C33/00 ,  B21D22/10

CPC classification number: B21C23/008 ,  B21C33/00

Abstract: IN A CLAMPING ARRANGEMENT FOR CLAMPING A FEEDSTOCK BILLET EXTENDING INTO A HIGH PRESSURE CHAMBER AGAINST AXIAL FORCES WHICH ACT ALONG THE LENGTH OF THE BILLET AND ARE SUFFICIENTLY LARGE TO DEVELOP STRESSES GREATER THAN THE YIELD STRESS OF THE BILLET MATERIAL, A PORTION OF THE FEEDSTOCK BILLET IS CLAMPED BETWEEN CLAMPING MEMBERS. THE CLAMPING MEMBERS ARE SEPARATED FROM THE INTERIOR OF THE HIGH PRESSURE CONTAINER BY A PASSAGE CAPABLE OF PASSING THE BILLET WHEN THE CHAMBER IS NOT UNDER PRESSURE. WHEN THE PRESSURE IN THE CHAMBER IS HIGH, RELATIVE DEFORMATION OCCURS BETWEEN THE PASSAGE WALL

AND THE BILLET TO PROVIDE FRICTIONAL ENGAGEMENT OVER A LENGTH SUFFICIENT TO REDUCE THE STRESS IN THE BILET TO A VALUE BELOW ITS YIELD STRENGTH IN THE REGION ADJACENT THE CLAMPING MEMBERS.