MAWU OYAMBA
Pali mitundu yosiyanasiyana ya ma electrode omwe amagwiritsidwa ntchito polumikiza zitsulo zotchingidwa (SMAW). Cholinga cha bukuli ndikuthandizira kuzindikira ndi kusankha ma electrode awa.
KUDZIWA KWA ELECTRODE
Ma electrode olumikizira a Arc amapezeka pogwiritsa ntchito njira yowerengera manambala ya AWS, (American Welding Society) ndipo amapangidwa mu kukula kuyambira 1/16 mpaka 5/16. Chitsanzo chingakhale ndodo yolumikizira yomwe imadziwika ngati electrode ya 1/8" E6011.
Elektrodiyo ndi mainchesi 1/8 m'mimba mwake.
"E" imayimira ma elekitirodi owetera a arc.
Chotsatira chidzakhala nambala ya manambala 4 kapena 5 yosindikizidwa pa elekitirodi. Manambala awiri oyamba a nambala ya manambala 4 ndi manambala atatu oyamba a nambala ya manambala 5 amasonyeza mphamvu yocheperako yomangirira (mu mapaundi zikwizikwi pa inchi imodzi) ya weld yomwe ndodo idzapanga, kupsinjika maganizo kuchepetsedwa. Zitsanzo zingakhale izi:
E60xx ingakhale ndi mphamvu yokoka ya 60,000 psi ndipo E110XX ingakhale 110,000 psi.
Nambala yotsatira kuchokera yomaliza imasonyeza malo omwe electrode ingagwiritsidwe ntchito.
1.EXX1X ndi yogwiritsidwa ntchito m'malo onse
2.EXX2X imagwiritsidwa ntchito m'malo athyathyathya komanso opingasa
3.EXX3X ndi yolumikizira zinthu mozungulira
Manambala awiri omaliza pamodzi, akusonyeza mtundu wa utoto pa elekitirodi ndi mphamvu yowotcherera yomwe elekitirodi ingagwiritsidwe ntchito nayo. Monga DC molunjika, (DC -) DC reverse (DC+) kapena AC
Sindidzafotokoza mtundu wa zokutira za ma electrode osiyanasiyana, koma ndipereka zitsanzo za mtundu wa magetsi omwe aliyense adzagwiritse ntchito.
MA ELECTRODE NDI MAFUTA OGWIRITSIDWA NTCHITO
● EXX10 DC+ (DC reverse kapena DCRP) electrode yabwino.
● EXX11 AC kapena DC- (DC yolunjika kapena DCSP) electrode yoipa.
● 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 Masiku Ano
SMAW imachitika pogwiritsa ntchito AC kapena DCcurrent. Popeza DC current imayenda mbali imodzi, DC current ikhoza kukhala DC straight, (electrode negative) kapena DC reversed (electrode positive). Ndi DC reversed, (DC+ KAPENA DCRP) weld ilowa mozama. DC straight (DC- KAPENA DCSP) weld idzakhala ndi kusungunuka mwachangu komanso kuchuluka kwa deposit. Weld idzakhala ndi medium input.
Mphamvu yamagetsi ya Ac imasintha polarity yake nthawi 120 pa sekondi ndipo singasinthidwe monga momwe mphamvu yamagetsi ya DC ingasinthire.
Kukula kwa ma electrode ndi ma AMP ogwiritsidwa ntchito
Zotsatirazi zikuthandizani kudziwa mtundu wa amp womwe ungagwiritsidwe ntchito pa ma electrode osiyanasiyana. Dziwani kuti ma rating awa akhoza kukhala osiyana pakati pa ma electrode osiyanasiyana omwe amapanga ndodo yofanana. Komanso, mtundu wa utoto womwe uli pa electrode ukhoza kukhudza mtundu wa amperage. Ngati n'kotheka, onani zambiri za opanga za electrode yomwe mugwiritsa ntchito pakusintha kwa amperage komwe amalimbikitsa.
Tebulo la ma elekitirodi
| Mzere wa electrode (KUKULA) | MALO A AMP | MBALE |
| 1/16" | 20 - 40 | MPAKA 3/16" |
| 3/32" | 40 - 125 | MPAKA 1/4" |
| 1/8 | 75 - 185 | KUPITA 1/8" |
| 5/32" | 105 - 250 | KUPITA 1/4" |
| 3/16" | 140 - 305 | KUPITA 3/8" |
| 1/4" | 210 - 430 | KUPITA 3/8" |
| 5/16" | 275 - 450 | KUPITA 1/2" |
Dziwani! Zinthu zoti zilumikizidwe zikakula kwambiri, mphamvu yamagetsi imafunika kukhala yayikulu komanso elekitirodi imafunika kukhala yayikulu.
Mitundu ina ya ma electrode
Gawoli lifotokoza mwachidule ma electrode anayi omwe amagwiritsidwa ntchito kwambiri pokonza ndi kukonza zowotcherera zachitsulo chofewa. Pali ma electrode ena ambiri omwe alipo powotcherera mitundu ina ya zitsulo. Funsani wogulitsa zinthu zowotcherera wapafupi kuti mudziwe ma electrode omwe ayenera kugwiritsidwa ntchito pachitsulo chomwe mukufuna kuwotcherera.
E6010Electrode iyi imagwiritsidwa ntchito polumikiza malo onse pogwiritsa ntchito DCRP. Imapanga weld yozama kwambiri ndipo imagwira ntchito bwino pa zitsulo zodetsedwa, zozizira, kapena zopakidwa utoto.
E6011Electrode iyi ili ndi makhalidwe ofanana ndi a E6010, koma ingagwiritsidwe ntchito ndi ma AC ndi DC currents.
E6013Electrode iyi ingagwiritsidwe ntchito ndi mafunde a AC ndi DC. Imapanga weld yolowera pakati yokhala ndi mawonekedwe abwino kwambiri a weld.
E7018Elektrodi iyi imadziwika kuti electrode yotsika ya hydrogen ndipo ingagwiritsidwe ntchito ndi AC kapena DC. Chophimba pa elektrodiyi chili ndi chinyezi chochepa chomwe chimachepetsa kulowa kwa hydrogen mu weld. Elektrodiyi imatha kupanga ma weld a x-ray okhala ndi malo olowera apakati. (Dziwani kuti, elektrodi iyi iyenera kusungidwa youma. Ngati yanyowa, iyenera kuumitsidwa mu uvuni wa ndodo musanagwiritse ntchito.)
Tikukhulupirira kuti mfundo zoyambira izi zithandiza wowotcherera watsopano kapena wogulitsa nyumba kuzindikira mitundu yosiyanasiyana ya ma electrode ndikusankha yoyenera pa ntchito zawo zowotcherera.
Nthawi yotumizira: Disembala-23-2022