JPS5588985A - Method and apparatus for feeding core wire for welding - Google Patents

Method and apparatus for feeding core wire for welding

Info

Publication number
JPS5588985A
JPS5588985A JP15982878A JP15982878A JPS5588985A JP S5588985 A JPS5588985 A JP S5588985A JP 15982878 A JP15982878 A JP 15982878A JP 15982878 A JP15982878 A JP 15982878A JP S5588985 A JPS5588985 A JP S5588985A
Authority
JP
Japan
Prior art keywords
circuit
short
period
arc
core wire
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
JP15982878A
Other languages
Japanese (ja)
Inventor
Kiroku Fujiwara
Takeshi Araya
Kiju Endo
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.)
Hitachi Ltd
Via Mechanics Ltd
Original Assignee
Hitachi Ltd
Hitachi Seiko Ltd
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 Hitachi Ltd, Hitachi Seiko Ltd filed Critical Hitachi Ltd
Priority to JP15982878A priority Critical patent/JPS5588985A/en
Publication of JPS5588985A publication Critical patent/JPS5588985A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce spatter and maintaing a stable short-circuit transfer type arc for a long period of time, by setting the feed speed of core wire at constant low spee and high speed in synchronism with the short-circuit period and arc period.
CONSTITUTION: An arc voltage waveform a is inputted to terminals C, E of a short-circuit detecting circuit 8 possessing a transistor 13, a Zener diode 14, and resistance elements 15W17 which are driven by DC power supply voltage Eo. The voltage of the diode 14 is selected at voltage XX' slightly larger than the short-circuit voltage at the point just before transfer from short-circuit to arc. As a result, the output between O and E, as shown in b, generates pulses of high level in the short- circuit period of the core wire 4 and the work 5, and pulses of low level in the arc period. Then, turning a selector switch 9 to A, B side, outputs Er1, Er2 are taken out, and the output Es of a comparator 12 becomes a signal proportional to Er2-ET, Er1-ET. In proportion thereto, the core wire feed motor 3 is driven, so that the core wire feed speed becomes low and high, as shown in c, respectively in the short- circuit period and arc period.
COPYRIGHT: (C)1980,JPO&Japio
JP15982878A 1978-12-27 1978-12-27 Method and apparatus for feeding core wire for welding Pending JPS5588985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15982878A JPS5588985A (en) 1978-12-27 1978-12-27 Method and apparatus for feeding core wire for welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15982878A JPS5588985A (en) 1978-12-27 1978-12-27 Method and apparatus for feeding core wire for welding

Publications (1)

Publication Number Publication Date
JPS5588985A true JPS5588985A (en) 1980-07-05

Family

ID=15702130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15982878A Pending JPS5588985A (en) 1978-12-27 1978-12-27 Method and apparatus for feeding core wire for welding

Country Status (1)

Country Link
JP (1) JPS5588985A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107297561A (en) * 2017-06-22 2017-10-27 北京工业大学 A kind of heated filament welding equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018460A (en) * 1973-06-22 1975-02-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018460A (en) * 1973-06-22 1975-02-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107297561A (en) * 2017-06-22 2017-10-27 北京工业大学 A kind of heated filament welding equipment
CN107297561B (en) * 2017-06-22 2019-09-03 北京工业大学 A kind of heated filament welding equipment

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