Uma kukhulunywa ngezinhlelo zokuvikela umlilo, ukuthembeka kwendawo ngayinye yokuxhuma kungasho umehluko phakathi kokucisha umlilo ngempumelelo nokwehluleka okuyinhlekelele. Izixhumanisi ze-Storz zangaphandle zivame ukuchayeka ezimweni ezinzima zemvelo, okuhlanganisa umswakama, amazinga okushisa aphezulu naphansi, imisebe ye-UV, nengcindezi yemishini evela ekuphathweni njalo. Ukukhetha impahla efanele yalezi zingxenye akusiyona nje into yokuthanda; isinqumo esiyisisekelo esithinta ukuphepha, ukuqina, nokusebenza kahle kwalo lonke uhlelo lokucisha umlilo. Onjiniyela nochwepheshe bokuthenga bavame ukuqhathanisa i-6061-T6 forged aluminum ne-cast aluminum, kodwa abaningi abakuboni ukuthi inqubo yokukhiqiza nokwelashwa kwengxube yensimbi kunomthelela omkhulu ekusebenzeni kwesikhathi eside. Ukukhethwa kwempahla kunomthelela ngqo ekutheni isixhumanisi sigcina kahle kanjani ukuvala kwaso ngaphansi kwengcindezi, simelana nokugqwala okuvela ekuchayekeni emvuleni noma emakhemikhali, futhi simelana nokuhlukunyezwa ngokomzimba lapho siwa noma sihudulwa endaweni enzima. Ezinhlelweni zangaphandle lapho ukushintshwa kubiza futhi ukungasebenzi kungamukeleki, ukukhetha impahla engcono njenge-6061-T6 forged aluminum esikhundleni se-cast aluminum evamile kunikeza izinzuzo ezilinganisekayo ezingaphezu kokucatshangelwa kwezindleko zokuqala. Lo mbhalo unikeza ukuhlaziya okuphelele kokuthi kungani i-6061-T6 forged aluminum iyisinqumo esingcono, kusetshenziswa isayensi yensimbi, idatha yangempela yokusebenza, nobuchwepheshe bokukhiqiza bezinhlangano ezihamba phambili embonini njenge-Varicpand International.

Umehluko oyisisekelo phakathi kwe-aluminium ebunjiwe neyensimbi eqinile uqala ezingeni lamangqamuzana. Lapho i-aluminium ibunjwa, insimbi encibilikisiwe ithululelwa esikhunjeni bese ivunyelwa ukuthi iphole, okuvame ukuholela ekwakhekeni okuhle njengoba kunezikhala, ukuncipha okuncane, nokusabalalisa okungafani kwezinhlamvu. Lokhu kungapheleli kwakha amaphuzu abuthaka angakwazi ukwandisa imifantu ngaphansi kwengcindezi, ikakhulukazi kuma-Storz couplings angaphandle okumele amelane nemijikelezo yokuxhuma ephindaphindiwe kanye nokushintshashintsha kwengcindezi. Ngokuphambene, i-6061-T6 forged aluminium ikhiqizwa ngokuguqula ngomshini i-billet eqinile ngaphansi kwengcindezi enkulu, okuthuthukisa ukwakheka kwezinhlamvu, kuqede izikhala zangaphakathi, futhi kuhlelanise imicu yensimbi ngokomumo wengxenye. Igama elithi T6 temper likhombisa ukuthi i-alloy iye yashiswa ngomuthi wokwelapha futhi yaguga ngokwenziwa, okwandisa kakhulu amandla ayo okudonsa afinyelele ku-310–350 MPa, kuyilapho ama-alloy ensimbi abunjiwe avamile afana ne-A356 noma i-413.0 enikeza kuphela u-180–250 MPa. La mandla aphezulu ahumusha ngqo ekusebenzeni okungcono kokusingatha ingcindezi, okuvumela ama-forged couplings ukuthi asebenze ngokuphepha emazingeni engcindezi aphezulu ngaphandle kokuguquka noma ukuvuza. Isisindo singenye into ebalulekile emishinini yomlilo yangaphandle, futhi i-6061-T6 forged aluminium inikeza isilinganiso esihle samandla nesisindo esingcono ngo-20–30% kunezinye izindlela ezibunjiwe, okwenza ama-couplings abe lula ukuwathwala nokuwaxhuma ngaphandle kokulahlekelwa amandla. Ukumelana nokugqwala kubalulekile ekusetshenzisweni kwangaphandle, futhi nakuba kokubili i-aluminium ebunjiwe neyensimbi eqinile yakha ungqimba oluvikelayo lwe-oxide, ukuminyana nokufana kwe-6061-T6 forged aluminium kuholela ekwakhekeni kwe-passive film ehambisanayo enikeza ukumelana okungcono nokugqwala okubangelwa amachashaza kanye nokugqwala kwe-galvanic, ikakhulukazi ezindaweni ezisogwini noma ezimbonini lapho ama-chloride nezinto ezingcolisayo zisheshisa ukonakala.

Ezimeni zangempela zokucima umlilo, ama-Storz couplings angaphandle abhekana nemithwalo enzima yemishini kanye ne-hydraulic ephusha izinto emikhawulweni yazo. I-6061-T6 forged aluminum igqama ekuphatheni ingcindezi ngoba ukwakheka kwayo okucwengiwe kanye nokungabi bikho kwe-porosity kuyivumela ukuthi igcine ukuzinza kobukhulu ngaphansi kwengcindezi ephezulu yangaphakathi, kunciphisa ingozi yokwehluleka kwe-coupling ngesikhathi semisebenzi ebucayi. I-cast aluminum, ngakolunye uhlangothi, ivamise ukuqukatha i-micro-porosity engase isebenze njengezinto ezigxilisa ingcindezi, okuholela ekuqhekekeni noma ukuvuza ngaphambi kwesikhathi lapho ibhekene nemijikelezo yengcindezi ephindaphindiwe noma imiphumela ye-water hammer. Ukumelana nomthelela kungenye indawo lapho i-forged aluminum ikhombisa ukusebenza kahle ngokusobala kune-cast material. Lapho i-coupling iwela kukhonkolo, ishaywa yimoto, noma idonswa phezu kwamatshe, i-ductility kanye ne-toughness ye-6061-T6 forged aluminum iyivumela ukuthi imunce amandla ngokusebenzisa i-plastic deformation ngaphandle kokuqhekeka, kuyilapho i-cast aluminum ivamise ukuqhekeka noma ukuchitheka ngenxa ye-brittleness yayo engokwemvelo kanye nezinkinga zangaphakathi. Lokhu kumelana nomthelela kubaluleke kakhulu ezinhlelweni zokuvikela umlilo ezingaphandle lapho imishini ivamise ukuhanjiswa, igcinwa emalolini, futhi iphathwa ezimeni eziphuthumayo ezingekho kahle. Ukuthembeka kwesikhathi eside mhlawumbe kuyisizathu esiqinile kakhulu sokukhetha i-forged aluminum. Izici ezingaguquki ze-6061-T6 ziqinisekisa ukuthi wonke ama-coupling asebenza ngokufanayo empilweni yawo yonke yokusebenza, ngokuziphatha okubikezelwayo kokukhathala kanye nokuncipha okuncane. Izingxenye ze-cast aluminum zivame ukukhombisa ukuhluka phakathi kwe-batch ngoba imingcele yokukhipha ifana ne-cooling rate, izinga lokushisa lesikhunta, kanye nokuhlanzeka kwensimbi encibilikisiwe kunzima ukuyilawula ngokuphelele, okuholela emandleni angaguquki kanye nokumelana nokugqwala. Ezinhlanganweni ezidinga ukungahluleki okunguziro emisebenzini yazo yokuvikela umlilo, ukuthembeka kwe-6061-T6 forged aluminum kunikeza ukuthula kwengqondo okungenakufaniswa nezinye izinto ezi-cast.

Izingxube zomlilo zangaphandle ze-Storz zixhunywa futhi zikhishwe kaningi, izikhathi eziyizinkulungwane empilweni yazo yokusebenza, okubenza bathwale umthwalo ojikelezayo ongaqala ukuqhekeka ngenxa yokukhathala. Amandla aphakeme okukhathala e-6061-T6 i-aluminiyamu ebunjiwe, angadlula izigidi eziyikhulu zemijikelezo emazingeni aphakathi nendawo okucindezeleka, aqinisekisa ukuthi ukuxhunywa kugcina ubuqotho bayo besakhiwo iminyaka eminingi, kuyilapho i-aluminiyamu eyakhiwe ngokujikijelwa ivamise ukukhombisa umkhawulo wokukhathala ophansi ngama-30–50%, okuholela ekuhlulekeni ngaphambi kwesikhathi ezindaweni ezisetshenziswa kakhulu.

I-Varicpand International isungule igama elithembekile embonini yokuvikela umlilo ngokusebenzisa ubuchwepheshe obuthuthukile bokubumba ngokucindezela ukuze kukhiqizwe ama-Storz couplings angaphandle ahlangabezana nezidingo eziphakeme kakhulu zokusebenza. Inqubo yokukhiqiza yenkampani iqala ngama-aluminium billets angu-6061 akhethwe ngokucophelela afudunyezwa kuqala ezingeni lokushisa eliqondile, ukuqinisekisa ukuthi i-plasticity ikahle ngaphandle kokuphazamisa izakhiwo ze-alloy. Lawa ma-billets abe esefakwa ngaphansi kwengcindezi ephezulu yokubumba kuma-dies enziwe ngokwezifiso abumba i-coupling ngobukhulu obuseduze, kuncishiswa ukumoshakala kwezinto futhi kuncishiswe isidingo sokwenza imishini eminingi. Inqubo yokubumba e-Varicpand isebenzisa i-multi-axis compression, ehlela ukuhamba kwezinhlamvu kahle kakhulu ngokomumo wezici ze-Storz coupling, okuhlanganisa ama-lugs, i-groove, kanye nendawo yokuvala, okuholela ezingxenyeni ezibonisa amandla aphezulu kakhulu lapho edingeka khona kakhulu. Ngemva kokubumba, i-coupling ngayinye idlula emjikelezweni wokwelashwa ngokushisa i-T6, okuhlanganisa ukwelashwa ngokushisa okuncibilikayo cishe ku-530°C okulandelwa ukupholisa ngokushesha kanye nokuguga okwenziwayo, ukuze kutholakale izakhiwo ezigcwele ze-alloy. Uhlelo lwe-Varicpand lokulawula ikhwalithi luhlanganisa ukuhlolwa kobukhulu okungu-100%, ukuhlolwa kwengcindezi ngokuphindwe ka-1.5 kunengcindezi yokusebenza elinganiselwe, kanye nokuhlaziywa kwe-metallurgical ukuze kuqinisekiswe ukwakheka kwezinhlamvu nokungabi bikho kwamaphutha. Lokhu kuzibophezela ekwenzeni kahle ekukhiqizeni kuqinisekisa ukuthi wonke ama-aluminium Storz couplings abunjiwe aphuma efektri enza ngokungaguquki nangokuphindaphindeka okudlula izidingo ze-NFPA ne-ISO zokuxhuma amahose omlilo. Ngokukhetha ama-Varicpand precision-forged 6061-T6 aluminium couplings, amakhasimende athola ukufinyelela eminyakeni eminingi yobuchwepheshe bezobunjiniyela kanye nomkhiqizo owenziwe kahle ukuze ubhekane nezinselelo eziyingqayizivele zokuvikela umlilo ngaphandle.

Izinzuzo ezingokoqobo ze-6061-T6 i-aluminiyamu ebunjiweyo yezixhumi ze-Storz zomlilo wangaphandle zibonakala kakhulu emkhakheni, lapho izisebenzi zokulungisa nabacimi bomlilo behlangana khona nsuku zonke nemishini. Ngenxa yokuthi izixhumi ezibunjiweyo zimelana nokugqwala ngempumelelo, zidinga ukuhlolwa okungavamile ukuze kutholakale imigodi, ukugqwala, noma ukubamba, okunciphisa izindleko eziphelele zobunikazi empilweni yomkhiqizo. Ukuzinza kobukhulu be-aluminiyamu ebunjiweyo kusho ukuthi isixhumi sigcina ubunjalo bayo bendawo yokuvala ngisho nangemva kweminyaka yokusetshenziswa, kuvimbele ukuvuza okungaphazamisa ukulethwa kwamanzi ngesikhathi esiphuthumayo somlilo. Ukusebenza okuphephile kungenye inzuzo ebalulekile, njengoba ukumelana nomthelela ophakeme kwe-6061-T6 i-aluminiyamu ebunjiweyo kunciphisa amathuba okuphuka okuyingozi ngesikhathi sokuphathwa, kuvikele abasebenzi emaphethelweni abukhali noma emfucumfucwini endizayo okungenzeka uma isixhumi esakhiwe siphuka ngenxa yomthelela. Impilo ende yezixhumi ze-aluminiyamu ezibunjiweyo, evame ukudlula iminyaka engu-20 ekufakweni kwangaphandle ngokulungiswa okufanele, inikeza imbuyiselo enhle kakhulu yokutshalwa kwezimali eminyangweni yezomlilo, ezikhungweni zezimboni, nasemanzini kamasipala. Ngaphezu kwalokho, ubukhulu obulula be-6061-T6 i-aluminiyamu ebunjiweyo banciphisa ubunzima bomzimba kubacimi bomlilo okumele bathwale futhi baxhume amahose amaningi ngesikhathi sokusabela okuphuthumayo, kuthuthukise kokubili isivinini nokuphepha endaweni yesehlakalo. Izixhumi ze-Storz ze-aluminiyamu ezibunjiweyo zakwa-Varicpand nazo zisebenza ngokugcwele nezixhumi ezikhona ze-aluminiyamu ezakhiwe, zethusi, nezensimbi engagqwali emakethe, okwenza kube lula ukuphakanyiswa okungena ngokushesha okuthuthukisa ukuthembeka kwesistimu ngaphandle kokudinga ukushintshwa okuphelele kwezinye izingxenye. Ezinhlanganweni ezibeka phambili ukulungela ukusebenza kanye nenani lesikhathi eside, izinzuzo zokusebenza zokuphakanyisela ku-6061-T6 i-aluminiyamu ebunjiweyo aziphikisweki, zinikeza uthuthuko olubonakalayo ekuphepheni, ekusebenzeni kahle kwezindleko, nasekusebenzeni.

Izinhlelo zokuvikela umlilo zangaphandle ezifakwe ezindaweni eziwugwadule, eziyizingqwaqwa, noma zasolwandle zibhekana nokushintshashintsha okukhulu kwezinga lokushisa, ukuchithwa kasawoti, nokuchayeka emisebeni ye-UV. Ukumelana nokugqwala kwe-6061-T6 forged aluminum, kuhlangene nekhono layo lokugcina izakhiwo zomshini kusukela ku--50°C kuya ngaphezu kuka-200°C, kuyenza ibe ukukhetha okuhle kakhulu ezindaweni lapho i-cast aluminum ingase ivele izekele noma ibe buthaka futhi yehluleke.

Ngemuva kokuhlola izici zempahla, izinzuzo zokusebenza, ubuhle bokukhiqiza, kanye nezinzuzo zokusetshenziswa, kuyacaca ukuthi i-6061-T6 forged aluminum inikeza inani elikhangayo uma iqhathaniswa ne-cast aluminum kuma-Storz couplings omilio wangaphandle. Amandla aphezulu, ukwakheka kwe-grain okucwengisiwe, ukumelana nokugqwala okuthuthukisiwe, kanye nekhwalithi engaguquki ye-forged aluminum kuhumushela ngqo ekusebenzeni okuphephile, izindleko eziphansi zokulungisa, kanye nempilo ende yesevisi yezingqalasizinda ezibalulekile zokuvikela umlilo. Nakuba i-cast aluminum ingabonakala yamukeleka ezindaweni zasendlini noma ezidinga umsebenzi ophansi, izimo ezinzima zokucima umlilo ngaphandle zidinga impahla engamelana nokukhuphuka kwengcindezi, imithelela yemishini, kanye nokonakala kwemvelo ngaphandle kokuphazamiseka. Ukuzibophezela kwe-Varicpand International ekwenzeni i-forging enembayo kanye nokulawula ikhwalithi okuqinile kuqinisekisa ukuthi wonke ama-Storz couplings e-6061-T6 forged aluminum ahlinzeka ngokusebenza okudingwa izinhlelo zanamuhla zokuvikela umlilo. Konjiniyela, abaphathi bokuthenga, kanye nochwepheshe bezokuphepha komlilo abahlola izinketho zempahla, ubufakazi busekela ngokuqinile ukukhetha i-forged aluminum ukuze kukhuliswe ukwethembeka futhi kuncishiswe ubungozi. Ukutshala imali kuma-6061-T6 forged aluminum couplings akukona nje ukuthuthukisa; kuyisinqumo esinamasu esithuthukisa ukuqina kwesistimu yonke yokuvikela umlilo, okunikeza ukuthula kwengqondo ukuthi impahla izosebenza lapho kubaluleke kakhulu.

I-aluminium eyenziwe nge-6061-T6 inamandla amakhulu okudonsa, ukumelana nokushaya okungcono, ukumelana nokugqwala okuphezulu, kanye nesakhiwo esifanayo se-grain ngaphandle kwe-porosity yangaphakathi uma iqhathaniswa ne-aluminium eyenziwe ngokuthululwa. Lezi zakhiwo ziyenza ithembeke kakhulu ekusetshenzisweni kwangaphandle lapho ama-couplings evezwa umswakama, amazinga okushisa aphezulu, nengcindezi yemishini, okuholela empilweni ende yesevisi nokunciphisa ubungozi bokwehluleka ngesikhathi sezimo eziphuthumayo.

I-6061-T6 i-aluminium ebunjiwe ngokuvamile inamandla okudonsa angu-310–350 MPa, kuyilapho izingxubevange ezijwayelekile ze-aluminium ezisetshenziselwa ama-couplings zinamandla angu-180–250 MPa. Lo mkhawulo wamandla ocishe ube ngu-40–60% uvumela ama-couplings abunjiwe ukuthi abhekane nezingcindezi eziphakeme zokusebenza futhi amelane nokuguquka kwesimo ngaphansi komthwalo, okwenza kube yinto ekahle ezinhlelweni zokuvikela umlilo ezinzima.

I-6061-T6 i-aluminium ebunjiwe yakha ungqimba oluvikelayo lwe-oxide oluminyene nolufana ncamashi ngenxa yokwakheka kwayo okucwengekile kanye nokungabi bikho kwezimbotshana, okunikeza ukumelana okuphezulu nokugqwala okubangelwa amachashaza, ukugqwala okubangelwa ukuxhumana kwezinsimbi ezahlukene, kanye nokuhlaselwa amakhemikhali. Ezindaweni ezingaphandle ezingasogwini noma ezimbonini, ama-couplings abunjiwe avame ukuhlala isikhathi esiphindwe ka-2–3 kunalezo ezenziwe nge-aluminium eyinsimbi ephonsiwe ngaphambi kokubonisa izimpawu zokonakala okuhlobene nokugqwala.

Yebo, izixhumanisi ze-Storz ezenziwe nge-aluminiyamu ye-6061-T6 ezikhokhisiwe ziklanyelwe ukuhambisana ngokugcwele nezixhumanisi ze-Storz ezijwayelekile zensimbi, zethusi, nezensimbi engagqwali kanye nezinsiza ezengeziwe. Zihambisana namazinga afanayo wobukhulu, okuqinisekisa ukuvala okufanele nokukhiya ngaphandle kokudinga ukulungiswa kwezixhumanisi ezikhona zomlilo noma izingxenye zohlelo.

Izixhumanisi ze-Storz ze-Varicpand ezenziwe nge-aluminiyamu ye-6061-T6 ezikhokhisiwe ngokuvamile zilinganiselwa ekucindezeleni okusebenzayo okungu-300–600 psi kuye ngohlobo oluthile nosayizi, nezici zokuphepha ezingaphezu kokuphindwe ka-1.5 kwesilinganiso sokucindezela. Lokhu kuphakeme kakhulu kunezixhumanisi eziningi zensimbi ezikhokhisiwe, ezivame ukulinganiselwa ku-200–400 psi ngenxa yezimbotshana nokwakheka okubuthakathaka kwezinhlamvu.

I-aluminium ye-6061-T6 e-forged inobuningi obufana ne-aluminium eyinsimbi kodwa ithola amandla aphezulu ngezinto ezincane, okuvumela abakhiqizi ukuthi baklame ama-coupling anezindonga ezincane ngenkathi begcina noma bedlula amandla ezingxenye ezijiyile zensimbi. Lokhu ngokuvamile kuholela ekunciphiseni kwesisindo ngo-10–20% uma kuqhathaniswa nama-coupling ensimbi alinganayo, okunciphisa ubunzima bomzimba kubacimi bomlilo.

I-Varicpand International isebenzisa ukufakwa ngokunemba okuphezulu ngoba kuqeda izikhala zangaphakathi, kuhambisa ukuhamba kwezinhlamvu ngokuhambisana nokuma kwe-coupling, futhi kukhiqiza izingxenye ezinezici ezingaguquki zomshini ezingenakuzuzwa ngokuthululwa kwensimbi. Le ndlela yokukhiqiza iqinisekisa ukuthi yonke i-coupling ihlangabezana namazinga aqinile ekhwalithi yokusingatha ingcindezi, ukumelana nomthelela, nokuthembeka kwesikhathi eside ezinhlelweni zokuvikela umlilo ngaphandle.

Ngokunakekelwa okufanele, ukuhlanganiswa kwe-Storz kwe-aluminium ye-6061-T6 kungasebenza ngokuthembekile iminyaka engu-20–30 ekufakweni kwangaphandle, uma kuqhathaniswa neminyaka engu-10–15 yokuhlanganiswa kwe-aluminium eyakhiwe ngesikhunta ezimweni ezifanayo. Impilo enwetshiwe ivela ekumelaneni okuhle nokugqwala, amandla okukhathala, nokumelana nokulimala okungokomshini, okunciphisa imvamisa nezindleko zokushintsha.

Ububi obukhulu ukuthi ama-couplings e-6061-T6 forged aluminum ngokuvamile anezindleko eziphakeme zokuqala kunezinye izindlela ze-cast aluminum ngenxa yenqubo eyinkimbinkimbi yokukhiqiza. Nokho, izindleko eziphelele zobunikazi ngokuvamile ziphansi phakathi nomjikelezo wempilo yomkhiqizo ngenxa yokuncipha kokulungiswa, ukushintshwa okumbalwa, kanye nengozi ephansi yomonakalo noma ukuma komsebenzi okubangelwa ukwehluleka.

Yebo, i-6061-T6 forged aluminum ikhombisa ukuqina okuhle kakhulu nokuvumelana nezimo lapho ishaywa, okuyivumela ukuthi imunce amandla ekuweni, ekushayweni, nasekuphathweni kanzima ngaphandle kokuqhekeka noma ukuphahlazeka. Lokhu kuyinzuzo ebalulekile ngaphezu kwe-cast aluminum, engenawo amandla futhi ivame ukuphahlazeka uma ishaywa, ikakhulukazi emazingeni okushisa aphansi ngaphandle.