NHANGANYAYA
Kune mhando dzakasiyana-siyana dzema electrode anoshandiswa mukuita kwe shielded metal arc welding, (SMAW). Chinangwa chegwaro iri ndechekubatsira mukuziva nekusarudza ma electrode aya.
KUZIVISWA KWEMAEKTRODHI
Maelectrode eArc welding anowanikwa achishandisa AWS, (American Welding Society) numbering system uye anogadzirwa nehukuru kubva pa1/16 kusvika 5/16. Muenzaniso ungave welding rod inozivikanwa se 1/8" E6011 electrode.
Iyo electrode ine dhayamita ye 1/8" (1/8" muhukuru).
"E" inomiririra arc welding electrode.
Chinotevera chichava nhamba ine manhamba mana kana mashanu yakadhindwa paelectrode. Nhamba mbiri dzekutanga dzenhamba ine manhamba mana uye manhamba matatu ekutanga enhamba ine manhamba mashanu zvinoratidza simba shoma rekudhonza (muzviuru zvemapaunzi pa sikweya inch) yeweld ichagadzirwa netsvimbo, kushushikana kuchideredzwa. Mienzaniso ingave seinotevera:
E60xx yaizova nesimba rekudhonza re60,000 psi E110XX yaizova 110,000 psi.
Nhamba inotevera kubva kune yekupedzisira inoratidza nzvimbo iyo electrode inogona kushandiswa mairi.
1.EXX1X inoshandiswa munzvimbo dzese
2.EXX2X inoshandiswa munzvimbo dzakati sandara uye dzakatwasuka
3.EXX3X ndeyekushongedza mativi ese
Manhamba maviri ekupedzisira pamwe chete, anoratidza rudzi rwekuputira paelectrode uye welding current iyo electrode inogona kushandiswa nayo. Zvakadai seDC yakatwasuka, (DC -) DC reverse (DC+) kana AC
Handizotsananguri rudzi rwemachira emagetsi akasiyana-siyana, asi ndichapa mienzaniso yerudzi rwemagetsi achashanda nawo.
MAELEKTRODHI NEMAFUTA AKASHANDISWA
● EXX10 DC+ (DC reverse kana DCRP) electrode yakanaka.
● EXX11 AC kana DC- (DC yakatwasuka kana DCSP) electrode isina kunaka.
● EXX12 AC kana DC-
● EXX13 AC, DC- kana DC+
● EXX14 AC, DC- kana DC+
● EXX15 DC+
● EXX16 AC kana DC+
● EXX18 AC, DC- kana DC+
● EXX20 AC ,DC- kana DC+
● EXX24 AC, DC- kana DC+
● EXX27 AC, DC- kana DC+
● EXX28 AC kana DC+
Mhando dzemazuva ano
SMAW inoitwa uchishandisa AC kana DCcurrent. Sezvo DC current ichiyerera ichienda kune imwe nzira, DC current inogona kuva DC straight, (electrode negative) kana DC reversed (electrode positive). Kana DC reversed, (DC+ KANA DCRP) weld inopinda yakadzika. DC straight (DC- KANA DCSP) weld inokurumidza kunyunguduka uye inodonha nekukurumidza. Weld inopinda nepakati.
Mwenje weAc unochinja polarity yawo ka120 pasekondi uye haugone kuchinjwa sezvakaita magetsi eDC.
SAIZI YE ELECTRODE NE AMPS DZAKASHANDISWA
Zvinotevera zvichashanda segwara rekutanga remhando yeamp inogona kushandiswa kumaelectrode ehukuru hwakasiyana. Cherechedza kuti ma rating aya anogona kusiyana pakati pema electrode akasiyana-siyana emhando yetsvimbo yakafanana. Uyewo mhando ye coating pa electrode inogona kukanganisa huwandu hweamperage. Kana zvichibvira, tarisa ruzivo rwemugadziri we electrode yauchashandisa pakugadzirisa kwavo amperage kunokurudzirwa.
Tafura yeElectrode
| Dhayamita yeElectrode (KUKOTOBA) | RANGE AMP | NDETE |
| 1/16" | 20 - 40 | KUSVIKA 3/16" |
| 3/32" | 40 - 125 | KUSVIKA 1/4" |
| 1/8 | 75 - 185 | ZVINOPFUURA 1/8" |
| 5/32" | 105 - 250 | ZVINOPFUURA 1/4" |
| 3/16" | 140 - 305 | ZVINOPFUURA 3/8" |
| 1/4" | 210 - 430 | ZVINOPFUURA 3/8" |
| 5/16" | 275 - 450 | ZVINOPFUURA 1/2" |
Cherechedza! Kana chinhu chinosungirirwa chakakora, simba remagetsi rinodiwa rakakwirira uye electrode inodikwa yakakura.
DZIMWE NZIRA DZE ELECTRODE
Chikamu chino chichatsanangura muchidimbu maerekitironi mana anoshandiswa kugadzirisa nekugadzirisa welding yesimbi isina kusimba. Kune mamwe maerekitironi akawanda anowanikwa ekuwelding mamwe marudzi esimbi. Tarisa nemutengesi wezvinhu zvekuwelding wemunharaunda yako kuti uwane electrode inofanira kushandiswa yesimbi yaunoda kuwelding.
E6010Electrode iyi inoshandiswa pakushongedza nzvimbo dzese uchishandisa DCRP. Inogadzira weld inopinza yakadzika uye inoshanda zvakanaka pasimbi dzakasviba, dzakaora, kana dzakapendwa.
E6011Electrode iyi ine hunhu hwakafanana nehweE6010, asi inogona kushandiswa neAC neDC currents.
E6013Electrode iyi inogona kushandiswa neAC neDC currents. Inogadzira weld inopinza iri pakati nepakati ine chitarisiko chepamusoro cheweld bead.
E7018Electrode iyi inozivikanwa se electrode ine hydrogen shoma uye inogona kushandiswa ne AC kana DC. Kuputira pa electrode kune hunyoro hushoma hunoderedza kupinda kwehydrogen mu weld. Electrode inogona kugadzira welds dzemhando ye x-ray nepakati pekupinda. (Cherechedza, electrode iyi inofanira kuchengetwa yakaoma. Kana ikanyorova, inofanira kuomeswa muovheni yetsvimbo isati yashandiswa.)
Zvinotarisirwa kuti ruzivo urwu rwunobatsira muchina wekusanganisa simbi mutsva kana wekugadzira simbi mumba kuona mhando dzakasiyana dzema electrode uye kusarudza chaiyo yemapurojekiti avo ekusanganisa simbi.
Nguva yekutumira: Zvita-23-2022