MAU OYAMBA
Pali mitundu yosiyanasiyana ya ma elekitirodi omwe amagwiritsidwa ntchito powotcherera zitsulo zotetezedwa, (SMAW).Cholinga cha bukhuli ndikuthandizira kuzindikira ndi kusankha ma electrode awa.
ELECTRODE IDENTIFICATION
Ma elekitirodi owotcherera a Arc amadziwika pogwiritsa ntchito manambala a AWS, (American Welding Society) ndipo amapangidwa kukula kwake kuyambira 1/16 mpaka 5/16.Chitsanzo chingakhale ndodo yowotcherera yomwe imadziwika kuti ndi electrode 1/8" E6011.
Electrode ndi 1/8 "m'mimba mwake.
"E" imayimira arc welding electrode.
Chotsatira chidzakhala nambala 4 kapena 5 yosindikizidwa pa electrode.Ziwerengero ziwiri zoyambirira za nambala ya manambala 4 ndi nambala 3 yoyambirira ya nambala 5 zikuwonetsa mphamvu yocheperako (mumapaundi masauzande pa inchi imodzi) ya weld yomwe ndodoyo idzatulutsa, kupsinjika kumachepetsedwa.Zitsanzo zingakhale motere:
E60xx ingakhale ndi mphamvu yowonjezereka ya 60,000 psi E110XX ingakhale 110,000 psi.
Nambala yotsatira mpaka yomaliza ikuwonetsa malo omwe electrode ingagwiritsidwe ntchito.
1.EXX1X ndi yogwiritsidwa ntchito m'malo onse
2.EXX2X ndi yogwiritsira ntchito malo athyathyathya ndi opingasa
3.EXX3X ndi kuwotcherera lathyathyathya
Nambala ziwiri zomaliza pamodzi, zimasonyeza mtundu wa zokutira pa electrode ndi kuwotcherera panopa electrode angagwiritsidwe ntchito.Monga DC molunjika, (DC -) DC reverse (DC+) kapena AC
Sindidzalongosola mtundu wa zokutira za maelekitirodi osiyanasiyana, koma ndipereka zitsanzo za mtundu wamakono womwe aliyense angagwire nawo.
MA ELECTRODE NDI MANKHWALA AMAGWIRITSA NTCHITO
● EXX10 DC+ (DC reverse kapena DCRP) electrode positive.
● EXX11 AC kapena DC- (DC molunjika kapena DCSP) alibe ma elekitirodi.
● EXX12 AC kapena DC-
● EXX13 AC, DC- kapena DC+
● EXX14 AC, DC- kapena DC+
● EXX15 DC+
● EXX16 AC kapena DC+
● EXX18 AC, DC- kapena DC+
● EXX20 AC ,DC- kapena DC+
● EXX24 AC, DC- kapena DC+
● EXX27 AC, DC- kapena DC+
● EXX28 AC kapena DC+
MITUNDU YA TSOPANO
SMAW imachitika pogwiritsa ntchito AC kapena DCcurrent.Popeza DC yamakono imayenda mbali imodzi, DC yamakono ikhoza kukhala DC yowongoka, (electrode negative) kapena DC reversed (electrode positive).Ndi DC yotembenuzidwa, (DC+ OR DCRP) kulowa kwa weld kudzakhala kozama.DC yowongoka (DC- KAPENA DCSP) chowotchereracho chimasungunuka mwachangu komanso kuchuluka kwa depositi.Chowotchereracho chimakhala ndi malo olowera.
Ac amasintha polarity nthawi 120 pa sekondi imodzi ndipo sizingasinthidwe monga momwe DC yapano ingasinthire.
ELECTRODE SIZE NDI AMPS WOGWIRITSA NTCHITO
Zotsatirazi zitha kukhala chiwongolero choyambira chamtundu wa amp omwe angagwiritsidwe ntchito pamitundu yosiyanasiyana yama elekitirodi.Zindikirani kuti mavoti awa akhoza kukhala osiyana pakati pa elekitirodi zosiyanasiyana amapanga kwa kukula ndodo.Komanso mtundu wokutira pa electrode ukhoza kukhudza mtundu wa amperage.Ngati kuli kotheka, yang'anani zomwe amapanga ma elekitirodi omwe mugwiritse ntchito pazokonda zawo zovomerezeka.
Table ya Electrode
| ELECTRODE DIAMETER (KUNENERA) | AMP RANGE | MBALE |
| 1/16" | 20-40 | MPAKA 3/16" |
| 3/32" | 40-125 | MPAKA 1/4" |
| 1/8 | 75-185 | PA 1/8" |
| 5/32" | 105-250 | PA 1/4" |
| 3/16" | 140-305 | PA 3/8" |
| 1/4" | 210-430 | PA 3/8" |
| 5/16" | 275-450 | PA 1/2" |
Zindikirani!Kukhuthala kwa zinthu zowotcherera, kumapangitsa kuti magetsi azikwera komanso ma elekitirodi amafunikira.
ZINTHU ZINA ZA ELECTRODE
Gawoli lifotokoza mwachidule ma elekitirodi anayi omwe amagwiritsidwa ntchito pokonza ndi kukonza kuwotcherera kwachitsulo chofewa.Pali maelekitirodi ena ambiri omwe amawotchera zitsulo zamitundu ina.Yang'anani ndi wogulitsa zowotcherera m'deralo za electrode yomwe iyenera kugwiritsidwa ntchito pazitsulo zomwe mukufuna kuwotcherera.
E6010Elekitirodi iyi imagwiritsidwa ntchito powotcherera malo onse pogwiritsa ntchito DCRP.Zimapanga zowotcherera mozama ndipo zimagwira ntchito bwino pazitsulo zakuda, zadzimbiri, kapena zopentidwa
E6011Electrode iyi ili ndi mawonekedwe omwewo a E6010, koma angagwiritsidwe ntchito ndi mafunde a AC ndi DC.
E6013Elekitirodi iyi itha kugwiritsidwa ntchito ndi mafunde a AC ndi DC.Zimapanga weld wolowera wapakati wokhala ndi mawonekedwe apamwamba kwambiri.
E7018Elekitirodi iyi imadziwika kuti low hydrogen elekitirodi ndipo itha kugwiritsidwa ntchito ndi AC kapena DC.Chophimba pa electrode chimakhala ndi chinyezi chochepa chomwe chimachepetsa kuyambitsa kwa haidrojeni mu weld.Elekitirodi imatha kupanga ma welds amtundu wa x-ray ndikulowa kwapakatikati.(Zindikirani, electrode iyi iyenera kukhala yowuma. Ngati inyowa, iyenera kuumitsa mu uvuni wa rod musanagwiritse ntchito.)
Tikukhulupirira kuti chidziwitso chofunikirachi chithandiza wowotchera watsopano kapena wakunyumba kuzindikira mitundu yosiyanasiyana ya ma elekitirodi ndikusankha yolondola pamapulojekiti awo owotcherera.
Nthawi yotumiza: Dec-23-2022