GB1155174A - Creation of Inventions and Patents with Artificial Intelligence

GB1155174A – Improvements relating to the Forming Of Pressure Vessels
– Google Patents

GB1155174A – Improvements relating to the Forming Of Pressure Vessels
– Google Patents
Improvements relating to the Forming Of Pressure Vessels

Info

Publication number
GB1155174A

GB1155174A
GB28638/66A
GB2863866A
GB1155174A
GB 1155174 A
GB1155174 A
GB 1155174A
GB 28638/66 A
GB28638/66 A
GB 28638/66A
GB 2863866 A
GB2863866 A
GB 2863866A
GB 1155174 A
GB1155174 A
GB 1155174A
Authority
GB
United Kingdom
Prior art keywords
die
charge
welding
sizing
vessel
Prior art date
1965-06-25
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB28638/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Foster Wheeler Inc

Original Assignee
Foster Wheeler Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1965-06-25
Filing date
1966-06-27
Publication date
1969-06-18

1966-06-27
Application filed by Foster Wheeler Inc
filed
Critical
Foster Wheeler Inc

1969-06-18
Publication of GB1155174A
publication
Critical
patent/GB1155174A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

B21D51/00—Making hollow objects

B21D51/16—Making hollow objects characterised by the use of the objects

B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles

B—PERFORMING OPERATIONS; TRANSPORTING

B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces

B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure

B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves

B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T29/00—Metal working

Y10T29/49—Method of mechanical manufacture

Y10T29/49805—Shaping by direct application of fluent pressure

Y10T29/49806—Explosively shaping

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T29/00—Metal working

Y10T29/49—Method of mechanical manufacture

Y10T29/49826—Assembling or joining

Y10T29/49908—Joining by deforming

Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body

Y10T29/4994—Radially expanding internal tube

Abstract

1,155,174. Making pressure vessels; welding. FOSTER WHEELER CORP. 27 June, 1966 [25 June, 1965], No. 28638/66. Headings B3A, B3Q, B3R and B3V. [Also in Division F3] A method of making a pressure vessel comprises explosively forming a first part, connecting this to a second part and explosively expanding the second part. In an example, parts of austenitic stainless-steel are connected by welding before expansion for making a rocket case. The ends of the case are made first by welding together at least one frusto-conical wall 13, Fig. 2, and a flat section 14 on each side of a cylindrical section 12 to form a hollow vessel. This is filled with liquid nitrogen and expanded by firing an explosive charge 17, the cylindrical section being held against expansion by rings 15 on each side of bars 19 welded to the vessel. The expansion operation also hardens the material by transforming the austenite to martensite, further improvement being possible by mantensitic strain hardening or low temperature ageing. Following this the vessel is cut into two halves and explosively expanded in a sizing die 21, Fig. 3, using a liquid such as water as a transmission medium. After removing the ring 15, an edge 48 of the vessel is machined and an opening 51, Fig. 4, cut in the end of one of the parts to form the top of a rocket casing. A lifting ring 55 permits installation of an expander ring 56 operated by an hydraulic cylinder 58 to align the edge 48 with an edge 50 on the second part 57 during circumferential welding by a machine 59. The second part and unexpanded neck on the first part are explosively expanded and sized in separate operations in a die 85, Fig. 6. The expanding charge 65 is mounted on a liner 64 and surrounded by a temporary shield 60 enclosing a space 69 into which liquid nitrogen is introduced to freeze water in a space 67 before the shield is removed. After inserting the workpiece in the die, liquid nitrogen is fed through a pipe 68 to the space between the workpiece and charge. Vapour flows upwards to a coverplate 74 and through a pipe 75 into a hollow constricting ring 77 from which it passes through holes 80 to the space surrounding the workpiece. The pipe 75 is disconnected from plate 74 before the charge is fired which is insufficient to impact the workpiece against the die. A balanced charge could be selected so as to limit expansion of the lower end of the second part 57 without the ring 77. The expanded sections are now raised from the die for positioning a sizing charge which expands the sections against the die using water as a transmission medium and, or before, an annular core of ice. A balanced sizing charge may be used without an external die. Further cylindrical sections may be added before the lower end of the case 18a1, Fig. 7 (not shown). In this operation, a top section 86 only of the die 85 is used which, during the welding stage, is spaced by bars (91) from the sizing die 21 carrying the lower section. The section 86 is now lowered to engage the die 21, Fig. 8, and an explosive charge is positioned on a body 104 of ice and having an ice-core 103, liquid nitrogen being used as the transmission medium. A further explosive core is used for sizing, using water as the transmission medium. Test cylinders were seam-welded, using an inert gas shielded tungsten arc process, the inside of the cylinders being purged by argon gas during welding of the outside seam, and the inner seam being welded with filler material cut from the parent metal. The strain hardening may be effected at ambient temperatures if the material is unstable at room temperature. The material may include the following, percentages by weight: c 0À05-0À11; Si 0À32- 0À77; S 0À007-0À023; mu 0À45-0À95; cr 15À5- 16-84; p 0À01-0À027; Ni 6À5-7À98.

GB28638/66A
1965-06-25
1966-06-27
Improvements relating to the Forming Of Pressure Vessels

Expired

GB1155174A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US467040A

US3344509A
(en)

1965-06-25
1965-06-25
Method for the explosive section forming of vessels

Publications (1)

Publication Number
Publication Date

GB1155174A
true

GB1155174A
(en)

1969-06-18

Family
ID=23854103
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB28638/66A
Expired

GB1155174A
(en)

1965-06-25
1966-06-27
Improvements relating to the Forming Of Pressure Vessels

Country Status (2)

Country
Link

US
(1)

US3344509A
(en)

GB
(1)

GB1155174A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

CN108746311A
(en)

2018-05-30
2018-11-06
东风汽车集团有限公司
A kind of tube bulge method and mold based on volume expansion power

Families Citing this family (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2729522C2
(en)

1977-06-30
1983-08-25
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München

Housing for an emission-safe valve and method for its manufacture

US4180349A
(en)

1978-01-30
1979-12-25
Vetco, Inc.
Pile forging

CZ201190A3
(en)

2011-02-18
2012-01-18
Západoceská Univerzita V Plzni
Process for producing hollow high-strength bodies of multiphase martensitic steels

CN102672026B
(en)

2012-05-28
2014-03-26
哈尔滨工业大学
Method for inhibiting martensite phase transformation in internal high-pressure forming of austenitic stainless steel pipe

CN106002093B
(en)

2016-06-08
2018-12-25
郑州煤矿机械集团股份有限公司
A kind of production method of the cylinder barrel with control valve seat

Family Cites Families (10)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2214226A
(en)

1939-03-29
1940-09-10
English Aaron
Method and apparatus useful in drilling and producing wells

US2367206A
(en)

1942-03-11
1945-01-16
Du Pont
Method of joining objects

GB657727A
(en)

1948-03-30
1951-09-26
Bofors Ab
Method of cold working hollow metal objects

US2779279A
(en)

1952-03-08
1957-01-29
Paul S Maiwurm
Apparatus for securing a tube or tubes in a body member

BE542698A
(en)

1954-12-23

US3036373A
(en)

1959-03-31
1962-05-29
Olin Mathieson
Metal forming

US3037374A
(en)

1959-08-14
1962-06-05
Messinger Harry
Dissolved water analyzer

US3140537A
(en)

1961-06-30
1964-07-14
Du Pont
Explosive welding process

US3197851A
(en)

1962-03-28
1965-08-03
Arde Portland Inc
Method of forming a high tensile stength pressure vessel

US3160949A
(en)

1962-05-21
1964-12-15
Aerojet General Co
Method of joining elongated objects

1965

1965-06-25
US
US467040A
patent/US3344509A/en
not_active
Expired – Lifetime

1966

1966-06-27
GB
GB28638/66A
patent/GB1155174A/en
not_active
Expired

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

CN108746311A
(en)

2018-05-30
2018-11-06
东风汽车集团有限公司
A kind of tube bulge method and mold based on volume expansion power

CN108746311B
(en)

2018-05-30
2019-10-08
东风汽车集团有限公司
A kind of tube bulge method and mold based on volume expansion power

Also Published As

Publication number
Publication date

US3344509A
(en)

1967-10-03

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