Ib qho tseem ceeb hauv HVAC thiab lub ntiaj teb tub yees yog tias cov neeg cog lus tau txhim kho cov khoom siv hluav taws xob tsis zoo thiab rov qab lub luj tshib es tsis xaj cov khoom tshiab.Qhov kev hloov pauv no yog vim muaj ob yam: kev cuam tshuam hauv cov saw hlau thiab txo qis ntawm cov chaw tsim khoom lav.
Thaum cov khoom lag luam teeb meem zoo li tau txo qis, qhov ntev tos rau qhov tshiab tuaj txog yog xyoo thiab nyuaj rau khaws cia hauv Tshuag.Pom tseeb, thaum cov khoom siv tsis ua haujlwm (tshwj xeeb yog cov khoom siv tub yees), peb tsis muaj sijhawm tos lub lis piam lossis hli rau qhov tshiab.
Thaum cov khoom tshiab tau dhau los ua kom yooj yim dua, kev kho tseem nyob hauv qhov xav tau.Qhov no yog vim muaj ntau lub tuam txhab tau txo lawv qhov kev lees paub ntawm txhuas coils raws li lawv tau pom tias 10-xyoo lav tsis tuaj yeem ua rau txhuas, uas yog cov hlau nyias uas tuaj yeem ua rau puas yooj yim.Yeej, cov tuam txhab lag luam kwv yees tus nqi ntawm cov khoom seem uas lawv xa tawm thaum lawv muab kev lav phib xaub mus ntev.
Tooj liab yog lub caj qaum ntawm HVAC systems thiab tub yees coils kom txog thaum tooj liab tus nqi nce hauv 2011. Ob peb xyoos tom ntej no, cov tuam txhab pib sim lwm txoj hauv kev thiab kev lag luam tau txiav txim siab ntawm txhuas raws li qhov kev xaiv zoo thiab pheej yig dua, txawm hais tias tooj liab tseem siv rau hauv qee qhov kev lag luam loj. .
Soldering yog cov txheej txheem uas feem ntau siv los ntawm cov kws tshaj lij los txhim kho cov xau hauv aluminium coils (saib sidebar).Feem ntau cov neeg cog lus tau txais kev cob qhia rau braze tooj liab yeeb nkab, tab sis brazing aluminium yog qhov sib txawv thiab cov neeg cog lus yuav tsum nkag siab qhov sib txawv.
Txawm hais tias txhuas yog pheej yig dua tooj liab, nws kuj muaj qee qhov teeb meem.Piv txwv li, nws yooj yim rau cov tub yees txias kom tau dented los yog gouged thaum kho, uas nkag siab ua rau cov neeg cog lus ntshai.
Aluminium kuj muaj qhov qis dua cov cua sov ntau, yaj ntawm qhov kub qis dua li tooj dag lossis tooj liab.Cov kws tshaj lij hauv teb yuav tsum tau saib xyuas qhov kub ntawm cov nplaim taws kom tsis txhob yaj lossis, qhov phem dua, kev puas tsuaj rau cov khoom tsis zoo.
Lwm qhov nyuaj: tsis zoo li tooj liab, uas hloov xim thaum rhuab, aluminium tsis muaj cov cim qhia ntawm lub cev.
Nrog rau tag nrho cov kev cov nyom no, aluminium brazing kev kawm thiab kev cob qhia yog qhov tseem ceeb.Feem ntau cov kws tshaj lij tsis tau kawm yuav ua li cas rau braze aluminium vim nws tsis tsim nyog yav dhau los.Nws yog ib qho tseem ceeb heev rau cov neeg cog lus nrhiav cov koom haum uas muaj kev cob qhia zoo li no.Qee lub tuam txhab muab kev qhia pub dawb NATE daim ntawv pov thawj - kuv pab neeg thiab kuv tau khiav cov kev kawm rau cov kws tshaj lij uas txhim kho thiab kho cov cuab yeej, piv txwv li - thiab ntau lub tuam txhab tam sim no tsis tu ncua thov cov ntaub ntawv thiab cov lus qhia los kho cov xau txhuas coils.Cov tsev kawm txuj ci ua haujlwm thiab kev cob qhia kuj tseem tuaj yeem muab kev cob qhia, tab sis cov nqi yuav raug siv.
Txhua yam uas xav tau los kho aluminium coils yog ib lub teeb taws nrog rau qhov tsim nyog alloy thiab txhuam.Tam sim no muaj cov khoom siv txawb nqa tau tsim los kho cov khoom siv txhuas, uas tuaj yeem suav nrog cov raj me me thiab cov txhuam hniav flux-cored alloy, nrog rau lub hnab ntim khoom uas txuas rau lub voj voog.
Ntau lub tshuab hluav taws xob siv oxy-acetylene torches, uas muaj cov nplaim taws kub heev, yog li tus kws tshaj lij yuav tsum muaj kev tswj xyuas kom sov zoo, suav nrog kev khaws cov nplaim taws kom deb ntawm cov hlau dua li ntawm tooj liab.Lub hom phiaj tseem ceeb yog yaj alloys, tsis yog hlau hauv paus.
Ntau thiab ntau tus kws tshaj lij tau hloov mus rau lub teeb pom kev zoo uas siv MAP-pro gas.Ua los ntawm 99.5% propylene thiab 0.5% propane, nws yog qhov kev xaiv zoo rau qhov kub thiab txias.Lub tog raj kheej ib phaus yog ib qho yooj yim nqa mus ncig ntawm qhov chaw ua haujlwm, uas yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov ntawv thov xws li kev teeb tsa lub ru tsev uas yuav tsum tau nce ntaiv.MAP-pro lub tog raj kheej feem ntau yog mounted nrog 12 ″ teeb kom yooj yim maneuvering ib ncig ntawm cov cuab yeej kho.
Txoj kev no kuj yog ib qho kev xaiv nyiaj txiag.Lub teeb yog $ 50 lossis tsawg dua, lub raj txhuas yog li $ 17 (piv rau $ 100 lossis ntau dua rau 15% tooj liab alloy), thiab lub peev xwm ntawm MAP-pro gas los ntawm cov wholesaler yog li $ 10.Txawm li cas los xij, cov pa roj no tsis tshua muaj hluav taws kub thiab kev saib xyuas tau qhia zoo thaum tuav nws.
Nrog rau cov cuab yeej thiab kev cob qhia zoo, tus kws tshaj lij tuaj yeem txuag lub sijhawm muaj txiaj ntsig los ntawm kev nrhiav cov coils puas hauv thaj chaw thiab ua haujlwm kho hauv ib qho kev mus ntsib.Tsis tas li ntawd, kev kho dua tshiab yog lub sijhawm rau cov neeg cog lus kom tau nyiaj ntxiv, yog li lawv xav kom lawv cov neeg ua haujlwm ua haujlwm zoo.
Aluminium tsis yog cov hlau uas nyiam tshaj plaws rau HVACR cov kws tshaj lij thaum nws los txog rau soldering vim nws yog thinner, ductile ntau dua tooj liab, thiab yooj yim rau tho.Lub melting point yog qis dua li ntawm tooj liab, uas ua rau cov txheej txheem soldering nyuaj dua.Ntau tus neeg paub txog cov khoom siv yuav tsis muaj kev paub txog txhuas, tab sis raws li cov tuam txhab hloov pauv tooj liab nrog txhuas, kev paub txog txhuas tseem ceeb dua.
Cov hauv qab no yog ib tug luv luv lub ntsiab lus ntawm soldering kauj ruam thiab txoj kev rau kho qhov los yog notches nyob rau hauv aluminium Cheebtsam:
Cov Ntsiab Lus Txhawb Nqa yog ib ntu them nyiaj tshwj xeeb uas cov tuam txhab kev lag luam muab cov ntsiab lus zoo, tsis ncaj ncees, tsis yog lag luam rau cov ntsiab lus txaus siab rau ACHR cov neeg mloog xov xwm.Tag nrho cov ntsiab lus txhawb nqa yog muab los ntawm cov tuam txhab tshaj tawm.Xav koom nrog peb cov ntsiab lus txhawb nqa?Thov hu rau koj tus neeg sawv cev hauv zos.
Raws li qhov kev thov Hauv qhov webinar no, peb yuav tau txais qhov hloov tshiab ntawm lub ntuj tso tub yees R-290 thiab nws qhov cuam tshuam rau HVAC kev lag luam.
Qhov webinar no yuav pab cov kws tshaj lij cua txias txuas qhov sib txawv ntawm ob hom khoom siv tub yees, cua txias thiab cov khoom lag luam.