JPS5719191A - Control device for welding temperature - Google Patents

Control device for welding temperature

Info

Publication number
JPS5719191A
JPS5719191A JP9459980A JP9459980A JPS5719191A JP S5719191 A JPS5719191 A JP S5719191A JP 9459980 A JP9459980 A JP 9459980A JP 9459980 A JP9459980 A JP 9459980A JP S5719191 A JPS5719191 A JP S5719191A
Authority
JP
Japan
Prior art keywords
temp
output
welding
controlled
butted
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
JP9459980A
Other languages
Japanese (ja)
Inventor
Seiichi Okuhara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9459980A priority Critical patent/JPS5719191A/en
Publication of JPS5719191A publication Critical patent/JPS5719191A/en
Pending legal-status Critical Current

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  • Control Of Temperature (AREA)

Abstract

PURPOSE: To correctly maintain the temp. distribution of the butted faces during welding by controlling the high frequency electric power for welding the butted faces and draw-out speed respectively by the output of optical thermometers, in producing an electric welded tube.
CONSTITUTION: The output of the 1st optical thermometer 1 is added with reference voltage -S1 in an adder 3, after which it controls the output of a high frequency power source 9 via a PID (proportionl plus integral plus derivative action) control circuit 4. It is so controlled that the edge part 14 of a butted part 12 attains a welding temp. T. On the other hand, the output of the 2nd optical thermometer 2 is added with reference voltage -S2 in an adder 5, after which the speed of a variable speed motor 7 is controlled via a PID control circuit 6. It is so controlled that the temp. of the point 16 at a constant distance (d) from the edge part 14 is a temp. close to the welding temp. T. In this way, the temp. of the point 16 is maintained correctly.
COPYRIGHT: (C)1982,JPO&Japio
JP9459980A 1980-07-11 1980-07-11 Control device for welding temperature Pending JPS5719191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9459980A JPS5719191A (en) 1980-07-11 1980-07-11 Control device for welding temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9459980A JPS5719191A (en) 1980-07-11 1980-07-11 Control device for welding temperature

Publications (1)

Publication Number Publication Date
JPS5719191A true JPS5719191A (en) 1982-02-01

Family

ID=14114723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9459980A Pending JPS5719191A (en) 1980-07-11 1980-07-11 Control device for welding temperature

Country Status (1)

Country Link
JP (1) JPS5719191A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157579A (en) * 1982-03-16 1983-09-19 Nippon Kokan Kk <Nkk> Method for controlling welding heat input of electric welded tube
JPS62203680A (en) * 1985-11-22 1987-09-08 Kawasaki Steel Corp Monitoring method for welding state
JPS62292287A (en) * 1986-06-11 1987-12-18 Kawasaki Heavy Ind Ltd Production of welded pipe
JP2017131903A (en) * 2016-01-25 2017-08-03 Ｊｆｅ建材株式会社 High frequency welding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157579A (en) * 1982-03-16 1983-09-19 Nippon Kokan Kk <Nkk> Method for controlling welding heat input of electric welded tube
JPS62203680A (en) * 1985-11-22 1987-09-08 Kawasaki Steel Corp Monitoring method for welding state
JPS62292287A (en) * 1986-06-11 1987-12-18 Kawasaki Heavy Ind Ltd Production of welded pipe
JP2017131903A (en) * 2016-01-25 2017-08-03 Ｊｆｅ建材株式会社 High frequency welding device

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