66
sto sbhvsimo tou tovxou (
0-10 sec
.)
V
-
Led
Post gas.
Ruqmivzei ton crovno exovdou tou aerivou
sto tevlo" th" sugkovllhsh" (
0-30 sec
.)
Y
- SUNDESH 10 POLWN
Sundevontai m v authvn oi akovlouqoi cei-
rismoiv ex apostavsew":
a) pentavl
b) tsimpivda me diakovpth ekkivnhsh"
g) tsimpivda me ruqmisthv iscuvo" (pontesiovmentro
d) tsimpivda me
up/down
klp.
Z
- SUNDESH
1/4''
AERIOU
Sundevetai m v authvn o swlhvna" aerivou th" tsim-
pivda" sugkovllhsh"
TIG
.
AA
- labivda arnhtikhv" exovdou v
(
-
)
AB
-labivda qetikhv" exovdou v
(
+
)
AC
- diakovpth"
Anavbei kai sbhvnei thn mhcanhv
AD
- suvndesh eisovdou aerivou
3.3. GENIKA
Prin apov thn crhvsh authv" th" suskeuhv" diabavste pro-
sektikav tou" kanovne"
CEI 26/9 - CENELEC HD 407 kai
CEI 26.11 - CENELEC HD 433.
Elevgxte epivsh" ovti h
movnwsh twn kalwdivwn eivnai anevpafh, elevgxte ti" pevn-
se" hlektrodivwn, ti" tsimpivde" kai tou" reumatolhvpte"
kai bebaiwqeivte ovti h diametro" kai to mhvko" twn kalw-
divwn sugkovllhsh" eivnai sumbatav me to reuvma pou crh-
simopoieivte.
3.4. SUGKOLLHSH EPENDEDUMENWN HLEKTRODIWN
(
MMA
)
- Authv h suskeuhv eivnai katavllhlh gia thn sugkovllhsh
ovlwn twn eidwvn hlektrodivwn ektov" tou kuttarinouvcou
tuvpou (
AWS 6010
)*.
- Bebaiwqeivte ovti o diakovpth"
AC
brivsketai sthn qevsh
0, sundevste ta kalwvdia sugkovllhsh" thrwvnta" thn
polikovthta pou zhteivtai apov ton kataskeuasthv twn
hlektrodivwn pou qa crhsimopoihvsete kai thn labivda tou
kalwdivou geivwsh" se shmeivo ovso givnetai piov konta sthn
sugkovllhsh, elevgconta" na upavrcei kalhv hlektrikhv
epafhv.
- Mhn aggivzete sugcrovnw" thn tsimpivda
TIG
hv thn
tsimpivda hlektrodivou kai thn labivda geivwsh".
- Anavyete thn mhcanhv mevsw tou diakovpth
AC
.
Epilevxte, pievzonta" to plhvktro
A
, thn diadikasiva
MMA, shvma
B
anammevno.
- Ruqmivsete to reuvma anavloga me thn diavmetro tou
hlektrodivou, thn qevsh sugkovllhsh" kai ton tuvpo evnw-
sh" pou prevpei na ektelevsete.
Otan teleiwvnete thn sugkovllhsh, sbhvnete pavnta thn
suskeuhv kai afaireivvte to hlektrovdio apov thn tsimpiv-
da.
3.5. SUGKOLLHSH
TIG
Authv h suskeuhv eivnai katavllhlh gia thn sugkovllhsh
me diadikasiva
TIG
anoxeivdwtou cavluba, sidhvrou, calkouv.
Sundevste ton tacusuvndesmo tou kalwdivou geivwsh" ston
qetikov povlo (
+
) th" suskeuhv" sugkovllhsh" kai thn labiv-
da se shmeivo ovso to dunatovn piov kontav sthn sugkovl-
lhsh elevgconta" na upavrcei kalhv hlektrikhv epafhv.
Sundevste ton tacusuvndesmo th" tsimpivda"
TIG
ston
arnhtikov povlo (
-
) th" suskeuhv" sugkovllhsh".
Sundevste to fi" th" tsimpivda" sthn suvndesh
Y
th"
suskeuhv" sugkovllhsh".
Sundevste to rakovr tou swlhvna aerivou th" tsimpivda"
sthn suvndesh
Z
th" mhcanhv" kai ton swlhvna aerivou
pou proevrcetai apov ton meiwthvra pivesh" th" fiavlh"
sthn suvndesh aerivou
AD
.
Endecovmene" proektavsei" tou kalwdivou prevpei na eivnai
katavllhlh" tomhv" w" pro" to aporrofouvmeno reuvma
I
1
.
Anavyte thn mhcanhv.
Mhn aggivzete tmhvmata upov tavsh kai ti" labivde" exov-
dou ovtan h suskeuhv trofodoteivtai.
Otan anavbete gia prwvth forav thn suskeuhv epilevgete
ton trovpo mevsw tou plhvktrou
A
kai ti" paramevtrou"
sugkovllhsh" mevsw tou plhvktrou
R
kai tou koumpiou
O
ovèpw" anafevretai sthn paravgrafo 3.2.
H rohv tou adranouv" aerivou prevpei na ruqmivzetai se
timhv (livtra § leptov) 6 forev" perivpou thn diavmetro tou
hlektrodivou. Ean crhsimopoiouvntai axesouavr tuvpou gas-
lens h parochv aerivou mporeiv na elattwqeiv mevcri 3
forev" thn diavmetro tou hlektrodivou.
H diavmetro" tou keramikouv mpek prevpei na eivnai apov
4 evw" 6 forev" thn diavmetro tou hlektrodivou.
Sunhvqw", to aevrio pou crhsimopeivtai perissovtero eivnai
to ARGON diovti to kovsto" tou eivnai camhlovtero se
scevsh me avlla adranhv aevria, allav mporouvn kai na crh-
simopoihqouvn mivgmata apov ARGON me 2% UDROGONO
to poluv gia thn sugkovllhsh tou anoxeivdwtou cavluba
kai HLIO hv mivgmata ARGON-HLIO gia thn sugkovllh-
sh tou calkouv. Autav ta mivgmata auxavnoun thn qer-
movthta tou tovxou allav eivnai poluv piov akribav.
An crhsimopoieivtai HLIO san aevrio prevpei na auxhvse-
te ta livtra § leptov mevcri 1°0 fore" thn diavmetro tou
hlektrodivou (paravdeigma
1,6 x10= 16 lt/min
Hlivou).
Crhsimopoieivvte gualiav prostasiva"
D.I.N. 10
mevcri
75A
kai
D.I.N. 11
apov
75A
kai pavnw.
3.6. APOQHKEUSH
H apoqhvkeush eivnai dunathv movno metav thn sugkovllhsh.
To plhvktro Q, me suvntomh pivesh, ekteleiv thn epiloghv,
me pivesh avnw twn 3 deuterolevptwn ekteleiv thn apo-
qhvkeush.
Kavqe forav pou anavbete thn mhcanhv authv deivcnei pavn-
ta ti" teleutaive" sunqhvke" sugkovllhsh".
3.6.1. Apoqhvkeush twn dedomevnwn tou progravmmato" PL
Otan crhsimopoieivte thn mhcanhv gia prwvth forav
