JPS54107464A - Liquid activated pipe expander - Google Patents

Liquid activated pipe expander

Info

Publication number
JPS54107464A
JPS54107464A JP1295878A JP1295878A JPS54107464A JP S54107464 A JPS54107464 A JP S54107464A JP 1295878 A JP1295878 A JP 1295878A JP 1295878 A JP1295878 A JP 1295878A JP S54107464 A JPS54107464 A JP S54107464A
Authority
JP
Japan
Prior art keywords
pipe
mandrel
liquid
rings
pressure
Prior art date
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.)
Pending
Application number
JP1295878A
Other languages
Japanese (ja)
Inventor
Yoshio Saito
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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP1295878A priority Critical patent/JPS54107464A/en
Publication of JPS54107464A publication Critical patent/JPS54107464A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: A pipe is expanded by using a mandrel having O rings separated by a distance equal to a length to be expanded. The mandrel is freely inserted into the pipe, and pressured liquid is supplied through the mandrel inlet into the gap between the pipe and the mandrel. This means economically provides reliable, multipiped heat exchangers.
CONSTITUTION: The mandrel 5 is provided with O rings 7 into the ring grooves 6. The mandrels 5 are inserted into the pipes 2 installed on the holes 2 of the plate 1 through the pipe gaps 3. Pressure liquid is supplied through the inlet 8 of the mandrel 5 into the gap between the pipe 4 and the mandrel 5. Liquid is sealed by the O rings 7,7 and not leaked. Liquid presses the pipe internal 5 against the pipe hole 2 to expand it, Since liquid pressure is used for pipe expansion, pressure control is correct and easy, and assurs uniform pipe expansion.
COPYRIGHT: (C)1979,JPO&Japio
JP1295878A 1978-02-09 1978-02-09 Liquid activated pipe expander Pending JPS54107464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1295878A JPS54107464A (en) 1978-02-09 1978-02-09 Liquid activated pipe expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1295878A JPS54107464A (en) 1978-02-09 1978-02-09 Liquid activated pipe expander

Publications (1)

Publication Number Publication Date
JPS54107464A true JPS54107464A (en) 1979-08-23

Family

ID=11819761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1295878A Pending JPS54107464A (en) 1978-02-09 1978-02-09 Liquid activated pipe expander

Country Status (1)

Country Link
JP (1) JPS54107464A (en)

Similar Documents

Publication Publication Date Title
ES471122A1 (en) Apparatus for hydraulically expanding a tube
JPS54107464A (en) Liquid activated pipe expander
JPS57152333A (en) Method of mounting pipe in pressure-tight manner in pipe plate, etc. and pressure forming mandrel executing said method
JPS5367152A (en) Heat-pipe heat exchanger and production thereof
JPS5413455A (en) Uniformly expanding device for tube
JPS5416362A (en) Pipe expander
JPS57154336A (en) Production for double-ply pipe
JPS55114431A (en) Pipe expander
JPS528520A (en) Expansion pipe joint for high temperature and high pressure piping
JPS55141343A (en) Pipe expanding device
JPS5439362A (en) Method of and apparatus for bring pipe with receiving hole by expansion
JPS5253334A (en) Method and apparatus of expansion
JPS55117515A (en) Manufacture of double-ply pipe
GB810219A (en) Improvements relating to pipe forming apparatus
FR2238543A1 (en) Method of fixing heat exchanger tube in metal block - involves expanding corrugated section tube placed in bore
JPS5262759A (en) Multiple piping for fluid in high temperature and voltage
JPS5213410A (en) Process for production of heat pipe
JPS54107465A (en) Pipe expansion by liquid pressure
JPS5758931A (en) Pipe expander
JPS52138744A (en) Manufacturing method of heat pipe type heat exchanger
GB1218613A (en) Liquid cushioned back-up for high pressure wave forming
JPS5457266A (en) Adiabatic pipe with anchor plate
JPS5636345A (en) Joining method of pipe
JPS57104094A (en) Manufacture of plate fin type heat exchanger
ATE33458T1 (en) DEVICE FOR THE PRESSURE-TIGHT FASTENING OF PIPES IN PIPE PLATES.