Isimiso:
Imishini yokushisela kagesi iwukusetshenziswa kwamandla kagesi, ngokufudumeza nokucindezela, okungukuthi, izinga lokushisa eliphakeme le-arc elikhiqizwe ama-electrode amahle noma angalungile kusekethe esifushane esisheshayo, ukuncibilikisa i-solder nezinto ezishiselwe ku-electrode, ngosizo lokuhlanganiswa nokusabalalisa ama-athomu ensimbi, ukuze ama-welld amabili noma ngaphezulu axhumeke ngokuqinile ndawonye. Yakhiwa ngokukhethekile i-electrode, umshini wokushisela kagesi, i-tong ye-welding kagesi, i-grounding clamp kanye nentambo yokuxhuma. Ngokohlobo lokunikezwa kwamandla okukhiphayo, ingahlukaniswa ngezinhlobo ezimbili, enye ingumshini wokushisela we-AC kanti enye ingumshini wokushisela we-DC.
Umshini wokushiselauxhumano:
• Izithombo zokushisela zixhunywe nezimbobo zokuthungatha ezixhuma izimbobo emshinini wokushisela ngokusebenzisa izintambo zokuxhuma;
• I-grounding clamp ixhunywe nembobo yokuxhuma i-grounding clamp emshinini wokushisela ngocingo lokuxhuma;
• Beka i-weldment ku-flux pad bese ucindezela i-ground clamp kwenye indawo yokushisela;
• Bese ubophela isiphetho sesibusiso se-electrode emihlathini yokushisela;
• Isisekelo esivikelekile noma uxhumo oluyiziro lwegobolondo lomshini wokushisela (isisetshenziswa esiphansi singasebenzisa ipayipi yethusi noma ipayipi lensimbi engenamthungo, ukujula kokungcwatshwa kwalo emhlabathini kufanele kube >1m, futhi ukumelana nomhlaba kufanele kube ngu-<4Ω), okungukuthi, sebenzisa intambo ukuxhuma ingxenye eyodwa kumshini ophansi kanye nolunye uhlangothi ekugcineni kwegobolondo eliphansi.umshini wokushisela.
• Bese uxhuma umshini wokushisela ngebhokisi lokusabalalisa ngokusebenzisa umugqa wokuxhuma, futhi uqinisekise ukuthi ubude bomugqa wokuxhuma buyi-2 kuya ku-3 amamitha, futhi ibhokisi lokusabalalisa kufanele lifakwe idivayisi yokuvikela ukulayisha ngokweqile kanye nomshini wokushintsha ummese, njll, ongalawula ukunikezwa kwamandla komshini wokushisela ngokwehlukana.
• Ngaphambi kokushisela, umqhubi kufanele agqoke izingubo zokushisela, izicathulo zenjoloba ezingavamisile, amagilavu okuzivikela, izifihla-buso zokuzivikela namanye amathuluzi okuvikela ukuphepha, ukuze aqinisekise ukuphepha komuntu siqu komqhubi.
Ukuxhumeka kokufakwayo kwamandla kanye nokuphuma komshini wokushisela:
Ngokuvamile kunezixazululo ezingu-3 zolayini wokufaka amandla: 1)intambo ephilayo, intambo emaphakathi, kanye nentambo yaphansi; 2)Izintambo ezimbili ezibukhoma nocingo olulodwa lwaphansi; 3)3 izintambo ezibukhoma, intambo eyodwa yaphansi.
Umugqa ophumayo womshini wokushisela kagesi awuhlukaniswanga ngaphandle komshini wokushisela we-AC, kodwa umshini wokushisela we-DC uhlukaniswe waba okuhle nokubi:
Umshini wokushisela we-DC wokuxhumana okuhle kwe-polarity: Indlela yokuxhuma i-polarity yomshini wokushisela we-DC isekelwe ku-workpiece njengereferensi, okungukuthi, i-workpiece yokushisela ixhunywe ekuphumeni okuhle kwe-electrode yomshini wokushisela kagesi, futhi isibambo sokushisela (i-clamp) sixhunywe ku-electrode engalungile. I-arc yokuxhuma i-polarity enhle inezici eziqinile, i-arc iwumngcingo futhi iwumqansa, ukushisa kugxilile, ukungena kunamandla, ukungena okujulile kungatholakala nge-current encane, i-weld bead (weld) eyakhiwe incane, futhi indlela yokushisela ibuye ibe lula ukuyiqonda, futhi ibuye ibe uxhumano olusetshenziswa kakhulu.
Umshini wokushisela we-DC indlela yokuxhuma i-polarity negative (ebuye ibizwe ngokuthi i-reverse polarity connection): i-workpiece ixhunywe ku-electrode engalungile, futhi isibambo sokushisela sixhunywe ku-electrode ephozithivu. I-polar polarity arc ithambile, ihlukanisiwe, ukungena okungajulile, yamanje enkulu kuqhathaniswa, i-spatter enkulu, futhi ifanele izindawo ezinezidingo ezikhethekile zenqubo yokushisela, njengesembozo sangemuva sekhava yangemuva, i-welding engaphezulu, lapho ubuhlalu bokushisela budinga izingxenye ezibanzi neziyisicaba, ukushisela amapuleti amancane nezinsimbi ezikhethekile, njll. I-polarity ye-welding engalungile akulula ukuyisebenzisa izikhathi ezivamile, futhi izikhathi ezivamile akulula ukuzisebenzisa. Ngaphezu kwalokho, uma usebenzisa i-alkaline low-hydrogen electrode, ukuxhuma okuphambene kuzinzile kune-arc enhle, futhi inani le-spatter lincane.
Ngokuqondene nokuthi uzosebenzisa uxhumano oluhle lwe-polarity noma indlela yokuxhuma i-polarity engalungile ngesikhathi sokushisela, kufanele kunqunywe ngokuya ngenqubo yokushisela,isimo sokushiselaizidingo kanye nempahla ye-electrode.
Indlela yokwahlulela i-polarity yokuphuma komshini wokushisela we-DC: Umshini wokushisela ovamile umakwe ngo-+ futhi - kutheminali yokuphumayo noma ebhodini letheminali, + lisho isigxobo esihle futhi - libonisa isigxobo esinegethivu. Uma ama-electrode e-positive kanye ne-negative engabhaliwe, izindlela ezilandelayo zingasetshenziswa ukuwahlukanisa.
1) Indlela ye-Empirical. Uma usebenzisa i-low-hydrogen (noma i-alkaline) ama-electrodes we-welding, uma ukushiswa kwe-arc kungazinzile, i-spatter inkulu, futhi umsindo unobudlova, kusho ukuthi indlela yokuxhuma phambili isetshenziswa; Uma kungenjalo, ihlehliswa.
2) Indlela yamalahle. Lapho indlela ye-carbon rod isetshenziselwa ukunquma indlela yokuxhuma phambili noma indlela yokuhlehla yokuxhuma, ingase futhi yahlulelwe ngokubheka i-arc nezinye izimo:
a. Uma ukushiswa kwe-arc kuzinzile futhi i-carbon rod ivutha kancane, kuyindlela yokuxhumana enhle.
b. Uma ukushiswa kwe-arc kungazinzile futhi i-carbon rod ishiswa kakhulu, iyindlela yokuhlehla yokuxhuma.
3) Indlela ye-Multimeter. Indlela nezinyathelo zokusebenzisa i-multimeter ukwahlulela indlela yokuxhumana eya phambili noma indlela yokuhlehla yokuxhuma yilezi:
a. Beka i-multimeter ebangeni eliphakeme kakhulu le-DC voltage (ngaphezulu kuka-100V), noma sebenzisa i-voltmeter ye-DC.
b. Ipeni le-multimeter kanye nomshini we-welding we-DC kuyathinteka ngokulandelana, uma kutholakala ukuthi i-pointer ye-multimeter iphambukisiwe ngokwewashi, khona-ke ukuphela komshini wokushisela oxhunywe nepeni elibomvu yi-polepositive pole, kanti omunye umkhawulo uyisigxobo esibi. Uma uhlola nge-multimeter yedijithali, uma kuvela uphawu olubi, kusho ukuthi ipeni elibomvu lixhunywe esigxotsheni esibi, futhi akukho simboli esivelayo, okusho ukuthi ipeni elibomvu lixhunywe esigxotsheni esihle.
Yiqiniso, emshinini wokushisela osetshenzisiwe, kusafanele uhlole imanuwali ehambisanayo.
Yilokho kuphela okuyisisekelo okwabiwe namuhla kulesi sihloko. Uma kukhona okungalungile, sicela uqonde futhi ulungise
Isikhathi sokuthumela: Mar-22-2025
