Umkhwa ophawulekayo kwi-HVAC kunye nehlabathi lefriji kukuba iikontraka ziya zilungisa ukulungiswa kwe-aluminiyam enesiphene yokutshintshisa ubushushu kunye neengqiniba ezibuyisela endaweni yoku-odola iindawo ezintsha.Olu tshintsho lubangelwa yimiba emibini: ukuphazamiseka kwikhonkco lokubonelela kunye nokunciphisa iziqinisekiso zomenzi.
Ngelixa imiba yekhonkco lonikezelo ibonakala ngathi iyehlile, ukulinda ixesha elide ukuba iindawo ezintsha zifike yiminyaka kwaye kunzima ukuzigcina kwisitokhwe.Ngokucacileyo, xa izixhobo zokusebenza zisilela (ingakumbi izixhobo zefriji), asinalo ixesha lokulinda iiveki okanye iinyanga ukuze sifumane iindawo ezintsha.
Ngelixa iinxalenye ezintsha zifumaneka lula, ukulungiswa kusafuneka.Oku kungenxa yokuba abaninzi abavelisi baye banciphisa iziqinisekiso zabo kwiikhoyili ze-aluminium njengoko befumene ukuba iwaranti ye-10 yeminyaka ayinakwenzeka kwi-aluminium, eyintsimbi encinci enokonakala lula.Ngokusisiseko, abavelisi bawujongela phantsi ubungakanani beendawo ezisecaleni abazithumelayo xa benikezela ngeziqinisekiso zexesha elide.
Ubhedu lwaluyintsika yeenkqubo zeHVAC kunye neekhoyili zokukhenkceza de amaxabiso obhedu anyuke ngo-2011. Kwiminyaka embalwa elandelayo, abavelisi baqala ukuvavanya ezinye iindlela kwaye ishishini lazinza kwi-aluminiyam njengokhetho olusebenzayo nolungabizi kakhulu, nangona ubhedu lusasetyenziswa kwezinye izicelo ezinkulu zorhwebo. .
I-Soldering yinkqubo eqhelekileyo esetyenziswa ngamagcisa ukulungisa ukuvuza kwiikhoyili ze-aluminium (jonga i-sidebar).Uninzi lweekontraka ziqeqeshelwe ukubraya umbhobho wobhedu, kodwa ukubrawuza ialuminiyam yinto eyahlukileyo kwaye iikontraka kufuneka ziwuqonde umahluko.
Nangona i-aluminiyam inexabiso eliphantsi kunobhedu, ikwabonisa iingxaki ezithile.Umzekelo, kulula ukuba ikhoyili yefriji ibotshwe okanye ibotshwe xa ilungisa, nto leyo eqondakalayo eyenza iikontraka zibe novalo.
I-Aluminiyam ikwanalo luhlu lobushushu obuphantsi lokunyibilika, inyibilika kubushushu obuphantsi kakhulu kunobhedu okanye ubhedu.Amagcisa omsebenzi kufuneka abeke iliso kwiqondo lobushushu lomlilo ukunqanda ukunyibilika okanye, okubi ngakumbi, umonakalo ongenakulungiseka kumalungu.
Obunye ubunzima: ngokungafaniyo nobhedu, oguqula umbala xa ushushu, i-aluminium ayinayo imiqondiso yomzimba.
Ngayo yonke le mingeni, imfundo kunye noqeqesho lwe-aluminiyam ibaluleke kakhulu.Uninzi lwabachwephesha abanamava alufundanga indlela yokwenza i-aluminiyam yebraze kuba bekungeyomfuneko ngaphambili.Kubaluleke kakhulu ukuba iikontraka zifumane imibutho enika uqeqesho olunjalo.Abanye abavelisi banikezela ngoqeqesho lwesiqinisekiso se-NATE sasimahla - iqela lam kunye nam siqhuba izifundo zokuthengisela amagcisa afaka kunye nokulungisa izixhobo, umzekelo - kwaye abaninzi abavelisi ngoku bacela rhoqo ulwazi lwe-soldering kunye nemiyalelo yokulungisa iikhoyili ze-aluminium ezivuzayo.Izikolo zokufundela umsebenzi wezandla nezobugcisa nazo zinokubonelela ngoqeqesho, kodwa iifizi zinokusebenza.
Yonke into efunekayo ukulungisa iikhoyili ze-aluminium yitotshi ye-soldering kunye ne-alloy efanelekileyo kunye neebrashi.Okwangoku zikhoyo iikiti eziphathekayo ze-soldering ezenzelwe ukulungiswa kwe-aluminium, ezinokubandakanya ii-mini-tubes kunye ne-flux-cored alloy brushes, kunye nebhegi yokugcina enamathele kwi-belt loop.
Iintsimbi ezininzi ze-soldering zisebenzisa iitotshi ze-oxy-acetylene, ezinamalangatye ashushu kakhulu, ngoko ke i-technician kufuneka ibe nolawulo olufanelekileyo lobushushu, kuquka nokugcina ilangatye kude nentsimbi kunobhedu.Injongo ephambili kukunyibilikisa i-alloys, kungekhona isinyithi esisisiseko.
Ayanda amagcisa atshintshela kwiitotshi ezikhaphukhaphu ezisebenzisa igesi yeMAP-pro.Ihlanganiswe ne-99.5% yepropylene kunye ne-0.5% yepropane, iyindlela efanelekileyo yokushisa okuphantsi.I-cylinder ene-pound enye kulula ukuyiphatha ngokujikeleza indawo yemisebenzi, ebaluleke kakhulu kwizicelo ezifunwayo ezifana nofakelo oluphezu kophahla olufuna ukukhwela izinyuko.I-MAP-pro cylinder idla ngokuxhonywa ngetotshi eyi-12″ ukuze kube lula ukuhambahamba malunga nezixhobo ezilungiswayo.
Le ndlela ikwayindlela yohlahlo lwabiwo-mali.Itotshi i-$ 50 okanye ngaphantsi, i-tube ye-aluminium malunga ne-$ 17 (xa kuthelekiswa ne-$ 100 okanye ngaphezulu kwi-alloy yobhedu ye-15%), kunye ne-can ye-MAP-pro gas evela kumthengisi malunga ne-$ 10.Nangona kunjalo, le gesi inokutsha ngokugqithisileyo kwaye inkathalo iyacetyiswa ngamandla xa uyiphatha.
Ngezixhobo ezifanelekileyo kunye noqeqesho, igcisa linokonga ixesha elixabisekileyo ngokufumana iikhoyili ezonakeleyo entsimini kunye nokwenza ukulungiswa kutyelelo olunye.Ukongeza, ukulungiswa kulithuba lokuba iikontraka zenze imali eyongezelelweyo, ngoko bafuna ukuqinisekisa ukuba abasebenzi babo benza umsebenzi omhle.
I-aluminiyam ayisiyiyo intsimbi ethandwayo yeengcali ze-HVACR xa isiza kwi-soldering kuba incinci, i-ductile eninzi kunobhedu, kwaye kulula ukuyigqobhoza.Indawo yokuncibilika iphantsi kakhulu kunobhedu, okwenza ukuba inkqubo ye-solder ibe nzima.Abathengisi abaninzi abanamava abanako ukuba namava e-aluminium, kodwa njengoko abavelisi besanda kutshintsha iindawo zobhedu nge-aluminium, amava e-aluminium abaluleke ngakumbi.
Oku kulandelayo ngumbono omfutshane wamanyathelo okuthengisa kunye neendlela zokulungisa imingxuma okanye iinotshi kumacandelo e-aluminium:
Umxholo oXhasiweyo licandelo elikhethekileyo elihlawulweyo apho iinkampani zoshishino zibonelela ngomxholo okumgangatho ophezulu, ongakhethi cala, ongengoworhwebo kwizihloko ezinomdla kubaphulaphuli beendaba be-ACHR.Yonke imixholo exhasiweyo inikezelwa ziinkampani zentengiso.Unomdla wokuthatha inxaxheba kwicandelo lethu lomxholo oxhaswe ngemali?Nceda uqhagamshelane nommeli wendawo yakho.
Ngesicelo Kule webinar, siya kufumana uhlaziyo kwi-refrigerant yendalo i-R-290 kunye nefuthe layo kwishishini le-HVAC.
Le webinar iya kunceda iingcali zokupholisa umoya zivale umsantsa phakathi kweentlobo ezimbini zezixhobo zefriji, i-air conditioning kunye nezixhobo zorhwebo.