JPS5728691A - Method for gas pressure welding - Google Patents

Method for gas pressure welding

Info

Publication number
JPS5728691A
JPS5728691A JP10123680A JP10123680A JPS5728691A JP S5728691 A JPS5728691 A JP S5728691A JP 10123680 A JP10123680 A JP 10123680A JP 10123680 A JP10123680 A JP 10123680A JP S5728691 A JPS5728691 A JP S5728691A
Authority
JP
Japan
Prior art keywords
amount
flow rate
burner
valves
solenoid valve
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
JP10123680A
Other languages
Japanese (ja)
Inventor
Yasushi Ishikawa
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP10123680A priority Critical patent/JPS5728691A/en
Publication of JPS5728691A publication Critical patent/JPS5728691A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/11—Torches

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PURPOSE: To stably control the flow rate of the gas without producing any impact sounds and soot, by installing a plural number of pairs of a solenoid valve and a valve which presets the flow rate of the gas, connected in series, and by performing adjustments of the flow rate of the gas in more than two steps at the time of ignition and extinguishment.
CONSTITUTION: A ring-shaped burner 8 is positioned so that it will surround a joining portion 7 of steel pipes 1 and 2, and numerous spouting nozzles are installed on the inner surface of the burner 8. To an oxigen pipeline 9 system of the burner 8, numerous paris, for example, four pairs, of a flow rate setting valve F and a solenoid valve S connected in seiries are installed in parallel. The valves and the solenoid valves are designated as F1WF4 and S1WS4, respectively. Valves F5WF8 and solenoid valves S5WS8 are also installed in the same manner to an acethylene pipeline 10 system. The burner 8 is ignited in such a way that after a little amount of acethylene is supplied from the solenoid valve S5 and ignited, the solenoid valve S1 starts to work and an amount of gaseous oxigen set at F1 is supplied. Then, other solenoid valves start to work successively in the order of S6→S2→S7→S3→S8→S4, and the amount of gaseous oxygen and acethylene is gradually increased. The amount will reach the whole amount finally. When the fire is extinguished the inverse procedure is performed.
COPYRIGHT: (C)1982,JPO&Japio
JP10123680A 1980-07-25 1980-07-25 Method for gas pressure welding Pending JPS5728691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10123680A JPS5728691A (en) 1980-07-25 1980-07-25 Method for gas pressure welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10123680A JPS5728691A (en) 1980-07-25 1980-07-25 Method for gas pressure welding

Publications (1)

Publication Number Publication Date
JPS5728691A true JPS5728691A (en) 1982-02-16

Family

ID=14295258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10123680A Pending JPS5728691A (en) 1980-07-25 1980-07-25 Method for gas pressure welding

Country Status (1)

Country Link
JP (1) JPS5728691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102139395A (en) * 2011-03-31 2011-08-03 郑奶谷 Annular tube type heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102139395A (en) * 2011-03-31 2011-08-03 郑奶谷 Annular tube type heater

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