Explanatory Notes On Welding In "Ac - Stel TIG μP 253H AC/DC Manual De Instrucciones

ENGLISH
TIG µP 253H AC/DC
COD. 6910000030
7.3– EXPLANATORY NOTES ON WELDING IN "AC"
When welding in ALTERNATING CURRENT it is possible to regulate the
frequency from 20Hz to 200 Hz.
I (A)
OUT
It is also possible to regulate the balance of the positive part with respect to the
negative from 10% to 90%; the two extreme situations are indicated below :
I (A)
OUT
B
Case
Case A :Maximum penetration, minimum cleanliness, no electrode consumption
(tungsten)
Case B : Maximum cleanliness, minimum penetration, electrode consumption
(tungsten)
An accurate study has revealed that the best compromise is a balance of 35%
positive and 60% negative.
STEL s.r.l. – Via del Progresso n° 59 – 36020
Loc. Castegnero (VICENZA) - ITALY
TEL. +39 444 639525 (central.) – +39 444 639682 (comm.)
FAX +39 444 639641 – E-mail:stelgroup.com
http: www.stelgroup.it
TECHNICAL DESCRIPTION
I (A)
OUT
A
Case
ENGLISH
7.3– EXPLANATORY NOTES ON WELDING IN "AC"
When welding in ALTERNATING CURRENT it is possible to regulate the
frequency from 20Hz to 200 Hz.
It is also possible to regulate the balance of the positive part with respect to the
negative from 10% to 90%; the two extreme situations are indicated below :
I (A)
OUT
Case
Case A :Maximum penetration, minimum cleanliness, no electrode consumption
(tungsten)
Case B : Maximum cleanliness, minimum penetration, electrode consumption
(tungsten)
An accurate study has revealed that the best compromise is a balance of 35%
positive and 60% negative.
STEL s.r.l. – Via del Progresso n° 59 – 36020
Loc. Castegnero (VICENZA) - ITALY
TEL. +39 444 639525 (central.) – +39 444 639682 (comm.)
FAX +39 444 639641 – E-mail:stelgroup.com
69 http: www.stelgroup.it
TIG µP 253H AC/DC
TECHNICAL DESCRIPTION
COD. 6910000030
I (A)
OUT
I (A)
OUT
B A
Case
69