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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
kalwdi
vou 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.
An qevlete na ruqmivsete ti" leitourgive" Hot-start (lent
AM) kai Arc force (lent AN) blevpete thn prohgouvmenh
paravgrafo.
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 I1.
3.5.1 Monavda yuvxh"
An crhsimopoieivte mia tsimpivda me yuvxh nerouv, crhsi-
mopoihvste th monavda.
3.5.1.1 Epexhvghsh tecnikwvn stoiceivwn
U1 Onomastikhv tavsh trofodosiva"
1x400V Monofasikhv trofodosiva
50/60 Hz Sucnovthta
I1max Anwvtato aporrofouvmeno reuvma
Pmax Anwvtath pivesh
P (1l/min) Yuktikhv iscuv" metrhmevnh se 1L/min
3.5.1.2 PERIGRAFH TWN PROSTASIWN
- Prostasiva pivesh" yuktikouv ugro
uv
Authv h prostasiva pragmatopoieivtai mevsw enov" pieso-
stavth, topoqethmevnou sto kuvklwma parochv" tou ugrouv,
pou prostavzei evnan mikroepexergasthv. H aneparkhv" pive-
sh epishmaivnetai, me to shvma H2O pou anabosbhvnei,
apov thn oqovnh P.
- Asfavleia thvxh" (T 2A/250V-Ø 5x20)
Authv h asfavleia tevqhke san prostasiva th" antliva"
kai topoqeteivtai sto kuvklwma elevgcou pou brivsketai
sto eswterikov th" monavda".
3.5.1.3 QEVSH SE LEITOURGIVA
Xebidwvste to pwvma kai gemivste th dexamenhv (h suskeuhv
promhqeuvetai me evna livtro ugrouv perivpou).
Eivnai shmantikov na elevgcete periodikav, mevsw th" sci-
smhv", ovti to ugrov diathreivtai sth stavqmh "max".
Crhsimopoieivte nerov w" yuktikov ugrov (katav protivmhsh
apeionismevnou tuvpou) anameigmevno me oinovpneuma se
posostov kaqorismev
no suvmfwna me ton akovlouqo pivnaka:
qermokrasivanerov/oinovpneuma
0°C mevcri -5°C 4L/1L
-5°C mevcri -10°C 3,8L/1,2L
Prosochv: An h antliva peristrevfetai cwriv" yuktikov
ugrov eivnai aparaivthto na afairevsete ton aevra apov
tou" swlhvne". Sthn perivptwsh authv sbhvste th gennhv-
tria, aposundevste tou" swlhvne" nerouv th" tsimpivda",
gemivste th dexamenhv, sundevste evnan swlhvna sth suvn-
desh ()kai eisavgete thn avllh avkrh tou swlhvna sth
dexamenhv.
Anavyte th mhcanhv, Gia na epilevxete ton trovpo lei-
tourgiva" th" monavda" yuvxh" energhvste w" akolouvqw":
1. Epilevxte mia opoiadhvpote diadiaksiva TIG.
2. Pievste to plhvktro Q kai diathrwvntav" to piesmevno
pievste to plhvktro R. Diathrhvste ta piesmevna mev
cri pou sthn oqovnh P emfanivzetai to mhvnuma H2O.
3. Epilevxte th leitourgiva mevsw tou peristrefovmenou
diakovpth O evconta" upovyh ovti oi ariqmoiv pou emfa
nivzontai sthn oqovnh N evcoun authv th shmasiva:
1 = Monavda sbhsthv,
2 = Sunechv" leitourgiva,
3 = Autovmath leitourgiva.
Gia na bgeivte apov thn epiloghv pievste suvntoma to plhvk-
tro Q.
Prosochv: Gia "autovmath leitourgiva" ennoeivtai ovti h
monavda yuvxh" tivqetai se leitourgiva katav thn pivesh tou
plhvktrou tsimpivda" kai stamatavei th leitourgiva metav
apov 2 leptav perivpou apov th stigmhv pou afhvnete to
plhvktro tsimpivda".
Pro
sochv! An epilevgetai h sugkovllhsh se hlektrovdio, h
yuvxh den eivnai anammevnh kai den mporeiv na epilecteiv.
Eivnai fusiologikov katav to avnamma th" mhcanhv" h oqovnh
P na emfanivzei, se anabosbhnovmeo trovpo, to mhvnuma H2O.
3.5.1 Monavda yuvxh" Kwd Art.360
An crhsimopoieivte mia tsimpivda me yuvxh nerouv, crhsi-
mopoihvste th monavda.
Gia thn topoqevthsh kai th metaforav tou sugkollhthv
maziv me th monavda yuvxh" eivnai aparaivthto to karovtsi
Art 1432.
Afouv gemivsete me yuktikov ugrov th dexamenhv, sundevste
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