iWeld 800MLTG2400PFC, User Manual

Page: 66 / 131

RO
4.2.2 Sudarea DCTIG
6XUVD GH FXUHQW
continuu folose
ƕ WH FHHD FH HVWH FXQRVFXW FD FF
(curent continuu) î
QFDUHFRPSRQHQWDHOHFWULFĆ SULQFLSDOĆFXQRVFXWĆ
VXEQXPHOHGHHOHFWURQLFXUJHGRDU
într-
RVLQJXUĆ
direc
Ɯ LHGHODERUQD
QHJDWLYĆ
(-) c
ĆWUH ERUQD SR]LWLYĆ
(+). În circuitul electric în curent
FRQWLQXXH[LVWĆXQSULQFLSLXDOHOHFWULFLWĆ Ɯ
ii conform c
ĆUXLD
într-un circuit
î
Q FXUHQW FRQWLQXX GLQ HQHUJLH FĆ
ldur
Ć
) este î
QWRWGHDXQD SH
SDUWHDSR]LWLYĆ
. Acest lucru este import
DQWGHRDUHFHGHWHUPLQĆ ODFH
born
Ć WUHEXLHFRQHFWDWĆ
tor
Ɯ D7,*
.
6XGDUHD 7,* vQ FXUHQW FRQWLQXX HVWH XQ SURFHV vQ FDUH VH
DPRUVHD]Ć XQ DUF vQWUH XQ HOHFWURG
de
WXQJVWHQ ƕ L SLHVD GH
SUHOXFUDWGLQPHWDO=RQDGHVXGXUĆ HVWHSURWHMDWĆ GHXQIOX[GH
JD]LQHUWSHQWUXDSUHYHQLFRQWDPLQDUHDWXQJVWHQXOXLDEĆ
ii de
sudur
Ć ƕ LD]RQHLGHVXGXUĆ
. Câ
QGVHDPRUVHD]Ć DUFXO7,*JD]XO
LQHUW HVWH LRQL]DW ƕ L VXSUD
înc
ĆO]LW VFKL
mbându-
ƕ L VWUXFWXUD
PROHFXODUĆ FDUH
î
O WUDQVIRUPĆ
într-
XQ IOX[ GH SODVPĆ $FHVW IOX[ GH SODV
m
Ć FDUH FXUJH
între
HOHFWURGXOWXQJVWHQ ƕ LSLHVDGHVXGDWHVWHDUFXO7,*FDUHSRDWHDMXQJH ƕ LODWHPSHUDWXULGHS
ân
Ć
OD
° C.
(VWH XQ DUF IRDUWH SXU ƕ
i conc
HQWUDW FDUH DVLJXUĆ WRSLUHD FRQWURODWĆ D PDMRULWĆ Ɯ
ii
PHWDOHORU
într-
REDLHGHVXGXUĆ6XGDUHD
TIG ofer
Ć XWLOL]DWRUXOXLFHDPDLPDUHIOH[LELOLWDWHSHQWUX
VXGDUHDFHOHLPDLODUJLJDPHGHPDWHULDOHJURVLPL ƕ LSURILOXUL6XGDUHD7,*
î
QFXUHQWFRQWLQXXHVWH
d
HDVHPHQHDFHDPDLFXUDWĆVXGXUĆQHJHQHUkQGVFkQWHLVDXVWURSL
.
,QWHQVLWDWHDDUFXOXLHVW
e propor
Ɯ LRQDOĆ
cu curentul
FDUHFXUJHGLQWXQJVWHQ6XGRUXOUHJOHD]Ć
curentul
GH VXGDUH SHQWUX D DMXVWD SXWHUHD DUFXOXL 'H
RELFHL
pentru
PDWHULDOXOVXE Ɯ
ire
HVWHQHYRLHGH
un
DUFPDLVODE ƕ
i
FXPDLSX Ɯ
in
Ć
c
Ć
ldur
Ć SHQWUXDWRSL
PDWHULDOXO SULQ XUPDUH ƕ
i
GH PDL SX Ɯ
in curent
DPSHUL
. M
DWHULDOXOPDLJURVQHFHVLWĆXQDUFPDL
SXWHUQLF FX PDL PXOWĆ FĆOGXUĆ DVWIHO vQFkW HVWH
QHYRLHGHPDLPXOWFXUHQWDPSHULSHQWUXDWRSL
PDWHULDOXO
.
'ĂnjĂƌŐŽŶ
Ƶnjĉ ^ƵƌƐĉƉƵƚĞƌĞ
ƵƌĞŶƚƐůĂď
ƵƌĞŶƚƚĂƌĞ
24