Ezinhlelweni zokushisela ze-MIG, ukuba nendlela yokuphakela ngocingo ebushelelezi kubalulekile. Intambo yokushisela kufanele ikwazi ukuphakela kalula kusuka ku-spool ku-feed ngokusebenzisa iphini lamandla, i-liner nesibhamu kuze kufike ekugcineni kokuthintana ukuze kumiswe i-arc. Lokhu kuvumela u-opharetha wokushisela ukuthi agcine amazinga angashintshi okukhiqiza futhi azuze ikhwalithi enhle yokushisela, kuyilapho futhi kunciphisa isikhathi sokuphumula esibizayo sokuxazulula izinkinga kanye nokusebenza kabusha okungaba khona.
Nokho, kunezinkinga ezimbalwa ezingaphazamisa ukondla ngocingo. Lokhu kungabangela inqwaba yezinkinga, okuhlanganisa i-arc engaqondakali, ama-burnbacks (ukwakheka kwe-weld ngaphakathi noma ithiphu yokuxhumana) kanye ne-birdnesting (i-tangle yocingo kuma-drive rolls). Kubasebenzisi abasha bokushisela okungenzeka abajwayelene nenqubo yokushisela ye-MIG, lezi zinkinga zingakhungathekisa ikakhulukazi. Ngenhlanhla, kunezinyathelo zokuvimbela kalula izinkinga futhi udale indlela enokwethenjelwa yokondla ucingo.
Ubude bomugqa wokushisela bunomthelela omkhulu ekutheni ucingo luzodla kahle kanjani kuyo yonke indlela. Ukude kakhulu kwelayini kungaholela ekudleni nasekuphakeleni kabi kwezintambo, kanti ulayini omfushane kakhulu ngeke unikeze ukwesekwa okwanele ocingweni njengoba ludlula. Lokhu ekugcineni kungaholela ku-micro-arcing ngaphakathi kwethiphu yokuxhumana okubangela ukusha noma ukwehluleka okusebenzisekayo ngaphambi kwesikhathi. Kungase futhi kube yimbangela ye-arc engavamile kanye ne-birdnesting.
Sika ulayini ngendlela efanele futhi usebenzise isistimu efanele
Ngeshwa, izinkinga zokunquma i-welding liner zivamile, ikakhulukazi phakathi kwama-opharetha ama-welding angenalwazi. Ukuze ukhiphe umsebenzi wokuqagela ekunqumeni umugqa wesibhamu esishiselayo ngendlela efanele - futhi uzuze indlela engenasici yokuphakela izintambo - cabangela isistimu eqeda isidingo sokukala ilineni ukuze ishintshwe. Le sistimu ikhiya ilineni endaweni ngemuva kwesibhamu, ivumele opharetha abashiselayo ukuthi ayiphungule ngephinikhodi. Omunye umkhawulo we-liner ukhiye ngaphambili kwesibhamu endaweni ethintwayo; iqondaniswe ngokujulile phakathi kwamaphoyinti amabili, ukuze ulayini unganwebeki noma unciphe phakathi nokunyakaza okujwayelekile.
Isistimu evala i-liner endaweni ngemuva kwesibhamu nangaphambili inikeza indlela yokuphakela ucingo olubushelelezi - yonke indlela eya entanyeni kuya ezintweni ezisetshenziswayo kanye ne-weld - njengoba kuboniswe lapha.
Uma usebenzisa i-liner evamile, gwema ukusonta isibhamu lapho uphungula i-liner futhi usebenzise i-liner trim gauge uma unikeziwe. Amalayini anephrofayili yangaphakathi enikeza ukungqubuzana okuncane ocingweni lokushisela njengoba ludlula kulayini ayisinqumo esihle sokuzuza ukuphakelwa kwezintambo okuphumelelayo. Lezi zinezimbotshana ezikhethekile kuzo futhi zihlanganiswe ngaphandle kwempahla yephrofayili enkulu, okwenza i-liner ibe namandla futhi inikeze ukudla okubushelelezi.
Sebenzisa ithiphu lokuxhumana elilungile futhi ufake kahle
Ukufanisa usayizi wethiphu yokushisela nobubanzi bocingo kungenye indlela yokugcina indlela ecacile yokuphakela izintambo. Isibonelo, intambo engu-0.035-intshi kufanele ifaniswe nethiphu yokuxhumana yobubanzi efanayo. Kwezinye izimo, kungase kufiseleke ukunciphisa ithiphu yokuxhumana ngosayizi owodwa ukuze uthole ukuphakelwa okungcono kwezintambo nokulawula i-arc. Cela umkhiqizi othembekile wezinto ezisetshenziswayo zokushisela noma umsabalalisi wokushisela ukuze uthole izincomo.
Bheka ukuguga ngendlela ye-keyholing (lapho ithiphu yokuxhumana iguga futhi i-oblong) njengoba lokhu kungabangela ukusha okuvimbela ucingo ukuthi lungadli.
Qiniseka ukuthi ufaka ithiphu yokuxhumana ngendlela efanele, uliqinise lidlule umunwe ukuze ugweme ukushisa ngokweqile, okungase kuvimbe ukuphakelwa kwezintambo. Bheka imanuwali yokusebenza evela kumkhiqizi wethiphu yokushisela ukuze uthole ukucaciswa kwetorque enconyiwe.
Ulayini ongasikwe ngokungafanele ungaholela ekufuyelweni kwezinyoni noma ekuhlanganeni kocingo kumaroli okushayela, njengoba kuboniswe lapha.
Khetha ama-drive rolls alungile bese usetha ukungezwani kahle
Amaroli edrayivu adlala indima ebalulekile ekuqinisekiseni ukuthi isibhamu sokushisela i-MIG sinendlela ebushelelezi yokuphakela izintambo.
Usayizi wedrayivu roll kufanele uhambisane nosayizi wentambo esetshenziswayo futhi isitayela sincike ohlotsheni lwezintambo. Uma ushisela ngocingo oluqinile, i-V-groove drive roll isekela ukondla okuhle. Izintambo ezinezintambo ezithambile - zombili igesi- futhi ezizivikelayo - kanye nezintambo ezinezintambo zensimbi zisebenza kahle nge-V-knurled drive rolls. Ukuze uthole i-aluminium welding, sebenzisa ama-U-groove drive rolls; izintambo ze-aluminium zithambile kakhulu, ngakho-ke lesi sitayela ngeke sizichoboze noma sizilimaze.
Ukuze usethe ukushuba kwesimo sedrayivu, vula ifindo lesiphakeli socingo ukuze ujike uhhafu owodwa udlule ukushelela. Donsa isibhamu se-MIG, unikeze ucingo esandleni esinamagilavu bese uyisonga kancane. Ucingo kufanele lukwazi ukudla ngaphandle kokushelela.
Qonda umthelela wentambo yokushisela ekwazini ukudla
Izinga lezintambo zokushisela kanye nohlobo lokupakishwa okukhona kukho kokubili kuthinta ukuphakelwa kwezintambo. Intambo yekhwalithi ephezulu ijwayele ukuba nobubanzi obungashintshi kunekhwalithi ephansi, okwenza kube lula ukuphakela kulo lonke uhlelo. Iphinde ibe nokhonkolo olungaguquki (ububanzi lapho ubude bentambo bunqanyulwa ku-spool futhi bubekwe endaweni eyisicaba) kanye ne-helix (ibanga lapho intambo iphakama ukusuka endaweni eyisicaba), okwengeza ekukhoneni kwentambo.
Nakuba ucingo lwekhwalithi ephezulu lungabiza kakhulu kusengaphambili, lungasiza ukunciphisa izindleko zesikhathi eside ngokunciphisa ubungozi bezinkinga zokudla.
Hlola ithiphu lokuxhumana ukuze uthole ukhiye, njengoba kungaholela ekushiseni (ukwakheka kwe-weld ngaphakathi noma ithiphu lokuxhumana) njengoba kukhonjisiwe kulo mfanekiso.
Izintambo ezisuka ezigubhu ezinkulu ngokuvamile ziba nokhonkolo olukhulu uma zikhishwa ephaketheni, ngakho zivame ukuphakela ngendlela eqondile kunezintambo ezivela ku-spool. Uma umthamo wokushisela ungasekela isigubhu esikhulu, lokhu kungase kube ukucatshangelwa kwazo zombili izinjongo zokuphakela ucingo kanye nokunciphisa isikhathi sokuphumula sokushintsha.
Ukwenza utshalomali
Ngaphezu kokulandela izinqubo ezingcono kakhulu zokusungula indlela ecacile yokudla ngocingo - nokwazi ukuxazulula izinkinga ngokushesha - ukuba nemishini ethembekile kubalulekile. Ukutshalwa kwezimali kwangaphambili kwesiphakeli sezintambo sekhwalithi ephezulu kanye nezinto ezisetshenziswayo zokushisela isikhathi eside kungakhokha ngokuhamba kwesikhathi ngokunciphisa izinkinga kanye nezindleko ezihambisana nezinkinga zokuphakelwa kwezintambo. Ukunciphisa isikhathi sokuphumula kusho ukugxila okwengeziwe ekukhiqizeni izingxenye nokuzikhipha kumakhasimende.
Isikhathi sokuthumela: Mar-14-2017
