JPS5490037A - Control of high frequency welding - Google Patents

Control of high frequency welding

Info

Publication number
JPS5490037A
JPS5490037A JP15906677A JP15906677A JPS5490037A JP S5490037 A JPS5490037 A JP S5490037A JP 15906677 A JP15906677 A JP 15906677A JP 15906677 A JP15906677 A JP 15906677A JP S5490037 A JPS5490037 A JP S5490037A
Authority
JP
Japan
Prior art keywords
high frequency
periodic
variation
average
time
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.)
Granted
Application number
JP15906677A
Other languages
Japanese (ja)
Other versions
JPS5646472B2 (en
Inventor
Murao Yamada
Matahisa Yamada
Kazuo Fukui
Hirotsugu Haga
Shizuyoshi Sannomiya
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 JP15906677A priority Critical patent/JPS5490037A/en
Publication of JPS5490037A publication Critical patent/JPS5490037A/en
Publication of JPS5646472B2 publication Critical patent/JPS5646472B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To raise the reliablity of the quality of welded tube by controlling the high frequency a oscillating periodic variation width due to the periodic variation of the circuit shpe of metal to be welded within a predetermined range of set values in a high frequency welding.
CONSTITUTION: The high frequency welder, consisting primarily of the high pressure rectifier 2 by which to convert Ac voltage regulated by the AC voltage regulator 1 into DC voltage, the high pressure oscillator 3, and the output transformer 4, supplied high frequency current to the both edges of strip through the contact tip 5. The high frequency of the oscillator 3 is sent to the oscillating waveform detector 6 and the average periode calculator 7 to calculate the average value of periodic time t1 within a predetermined set time T1, then the variation in average periodic time every the predetermined set time T1 is watched within a set time T2 to calculate the difference between the maximum value and the minimum value as the variation width W for comparison with a set variation width of 2 to 22n sec, and then a power necessary for collecting a width out of the set value is calculated to send it to the primary power arithmetic portion 11. Afterwards, necessary power is sent to the AC voltage regulator 1 through the arithmetic amplifier 13 to control the primary power.
COPYRIGHT: (C)1979,JPO&Japio
JP15906677A 1977-12-28 1977-12-28 Control of high frequency welding Granted JPS5490037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15906677A JPS5490037A (en) 1977-12-28 1977-12-28 Control of high frequency welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15906677A JPS5490037A (en) 1977-12-28 1977-12-28 Control of high frequency welding

Publications (2)

Publication Number Publication Date
JPS5490037A true JPS5490037A (en) 1979-07-17
JPS5646472B2 JPS5646472B2 (en) 1981-11-04

Family

ID=15685462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15906677A Granted JPS5490037A (en) 1977-12-28 1977-12-28 Control of high frequency welding

Country Status (1)

Country Link
JP (1) JPS5490037A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017056472A (en) * 2015-09-16 2017-03-23 新日鐵住金株式会社 Monitoring device and monitoring method of electric resistance welding process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111369U (en) * 1987-01-13 1988-07-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017056472A (en) * 2015-09-16 2017-03-23 新日鐵住金株式会社 Monitoring device and monitoring method of electric resistance welding process

Also Published As

Publication number Publication date
JPS5646472B2 (en) 1981-11-04

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