Zaj Dab Neeg Ua Tau Zoo: Kev Txhim Kho Zoo los ntawm Kev Txhim Kho Cov Cuab Yeej Kub Kub

Xav txog cov kab ntau lawm uas cov khoom yas ua rau muaj qhov tsis sib xws, cov teeb meem shrinkage, los yog cov kab nrib pleb me me - cov khoom uas yuav tsum tau muab pov tseg, noj rau hauv cov txiaj ntsig thiab ua rau cov khoom lag luam qeeb. Qhov no yog ib qho mob taub hau nyob rau hauv cov khoom yas molding, thiab feem ntau tsis yog, lub hauv paus ua rau tsis yog pwm los yog cov khoom siv yas, tab sis lub tshuab hluav taws xob kub khiav. Ntau qhov chaw ua haujlwm nrog cov cua kub khiav tsis tu ncua, tsis paub tias qhov kev hloov kho yooj yim tuaj yeem hloov cov khoom tsis sib xws rau hauv kev sib tw, siab - cov txheej txheem zoo. Raws li cov ntaub ntawv hauv kev lag luam, cov khoom siv hluav taws xob kub dhau los ua lub luag haujlwm txog li 30% ntawm cov khoom tsis xws luag hauv cov yas molding, ib qho teeb meem uas tsis tuaj yeem zam tau nrog kev hloov kho kom raug.

Ua ntej, nws yog ib qho tseem ceeb kom nkag siab tias lub tshuab hluav taws xob kub kub ua tau zoo li cas thiab ntau hom sib txawv sib txawv li cas. Cov cua kub khiav cua sov yog cov khoom tseem ceeb ntawm cov tshuab kub khiav, ua haujlwm nrog kev khaws cov yas molten ntawm qhov kub thiab txias raws li nws ntws los ntawm lub tshuab txhaj tshuaj molding mus rau pwm kab noj hniav -xav tias lawv yog "tus neeg saib xyuas kub" ntawm cov txheej txheem molding. Muaj ntau ntau hom kev lag luam hauv khw, txhua tus muaj nws tus kheej lub zog thiab kev siv zoo tagnrho, thiab xaiv qhov tsis ncaj ncees lawm yog ib qho pitfall.

Lub tshuab cua sov yog hloov tau, tuaj yeem khoov mus rau hauv cov duab nyuaj kom haum cov pwm geometries, thiab khav theeb siab zog ceev (txog 60 W / cm²) nrog cov hloov hluav taws xob ceev ceev - zoo meej rau siab - cov ntawv siv kub xws li cov khoom siv tsheb lossis cov khoom siv kho mob. Cartridge rhaub, ntawm qhov tod tes, yog cylindrical thiab haum rau hauv pre-drilled qhov; lawv muaj lub zog qis dua tab sis muaj zog dua thiab tsim nyog rau cov haujlwm qis- kub molding. Tubular cua sov yog nruj, tuaj yeem tsim rau hauv cov ntu ncaj lossis nkhaus, thiab sib npaug ntawm lub zog ceev thiab hloov hluav taws xob, ua rau lawv muaj ntau yam kev xaiv rau kev xav tau molding. Hauv qhov sib piv, cov khoom siv hluav taws xob qub xws li cov cua sov sab nraud feem ntau raug kev txom nyem los ntawm lub sij hawm teb qeeb (txog 10 vib nas this) thiab qhov kub tsis zoo, ua rau muaj qhov tsis xws luag uas tau hais dhau los. Qhov tseeb, piv rau cov cua sov sab nraud, cov cua kub cua sov niaj hnub no muaj lub sijhawm teb tsawg dua 1 thib ob thiab txhim kho qhov kub thiab txias qhov tseeb ntawm 5 mus rau 10 npaug.

Raws li kev paub dhau los, ntau qhov chaw ua yuam kev ntawm kev xaiv lub tshuab hluav taws xob kub kub raws li tus nqi nkaus xwb, tsis yog qhov sib piv rau lawv cov kev xav tau tshwj xeeb molding. Piv txwv li, siv lub tshuab hluav taws xob qis qis rau siab - kub engineering yas xws li PEEK yuav ua rau cov cua sov tsis sib xws thiab cov khoom siv degradation, thaum lub siab - lub tshuab hluav taws xob coil rhaub siv rau qis- kub plastics xws li PP yuav nkim zog thiab muaj kev pheej hmoo overheating. Lwm qhov ua yuam kev yog tsis quav ntsej cov khoom ntawm lub tshuab cua sov kab noj hniav - cov kua dej corrosive lossis siab - cov yas viscosity xav tau cov cua sov ua los ntawm 316L stainless hlau lossis Hastelloy kom tsis txhob muaj corrosion thiab ua tsis tiav ntxov. Cov cua kub khiav cua sov nrog 316L stainless hlau kab noj hniav tuaj yeem kav ntev dua 20,000 teev nyob rau hauv ib puag ncig corrosive, piv rau tsuas yog 5,000 teev rau cov qauv immersion cua sov rods.

Cov lus qhia tswv yim rau kev hloov kho lub tshuab hluav taws xob kub kub pib nrog kev ntsuam xyuas cov ntsiab lus mob tam sim no. Yog tias cov khoom tsis raug cuam tshuam nrog kev hloov pauv ntawm qhov kub thiab txias, kev kho dua tshiab rau lub rhaub dej nrog ua -hauv PT100 thermocouples thiab PID tswj tuaj yeem ua tiav qhov ntsuas kub ntawm ± 1 degree, tshem tawm cov teeb meem xws li shrinkage thiab warpage. Rau cov chaw saib kom txuag hluav taws xob, xaiv lub tshuab hluav taws xob kub kub nrog kev sib xyaw ua ke (xws li ceramic fiber) tuaj yeem txhawb nqa thermal efficiency mus rau ntau dua 95%-ib qho tseem ceeb dhia los ntawm 70% kev ua haujlwm ntawm cov khoom siv hluav taws xob sab nraud. Nws kuj tseem ceeb heev los xyuas qhov haum ntawm lub rhaub thiab pwm; qhov tsis zoo haum ua rau poob cua sov thiab cua sov tsis sib xws, yog li kev cai- cov cua sov loj feem ntau tsim nyog rau kev nqis peev, tshwj xeeb tshaj yog rau cov pwm tsim.

Lwm lub ntsiab lus tseem ceeb yog kev saib xyuas-txawm tias lub tshuab hluav taws xob kub zoo tshaj plaws yuav ua haujlwm tsis zoo yog tias tsis saib xyuas zoo. Kev kuaj xyuas tsis tu ncua ntawm lub tshuab hluav taws xob rwb thaiv tsev txheej (kom tiv thaiv kom tsis txhob muaj cua sov) thiab kev sib txuas hluav taws xob (kom tsis txhob muaj luv luv Circuit Court) tuaj yeem txuas nws lub neej ntev txog li 50%. Ntau qhov chaw saib xyuas cov kauj ruam no, ua rau lub tshuab ua kom sov tsis tu ncua thiab tsis tau npaj tseg. Tsis tas li ntawd, tsis txhob overloading lub rhaub; lub zog ceev muaj qhov txwv, thiab thawb nws dhau nws lub peev xwm yuav ua rau muaj cua sov, cov khoom siv degradation, thiab txawm tias muaj kev nyab xeeb.

Zaj dab neeg ua tiav ntawm kev hloov kho lub tshuab hluav taws xob kub kub yog nyob rau hauv lawv lub peev xwm los hloov cov khoom tsis sib xws rau hauv kev ntseeg siab, siab - cov zis zoo. Los ntawm kev xaiv qhov zoo ntawm cov khoom siv hluav taws xob kub kub, sib piv rau cov khoom siv molding thiab cov kev xav tau kub, thiab ua raws li kev saib xyuas yooj yim, cov chaw tuaj yeem txo cov khoom tsis xws luag txog li 90%, txo cov nqi hluav taws xob los ntawm 28%, thiab txuas ntxiv cov cua sov lub neej. Txhua qhov chaw molding muaj cov kev xav tau tshwj xeeb-los ntawm hom yas siv rau qhov nyuaj ntawm cov pwm tsim- thiab tsis muaj leej twg -size- haum- txhua qhov kub khiav lub tshuab rhaub dej. Qhov no yog qhov kev tsim qauv thiab kev hloov kho tuaj rau hauv kev ua si; tailored kub runner heater kev daws teeb meem kom pom kev ua tau zoo, txo cov khoom pov tseg, thiab ua kom rov qab los ntawm kev nqis peev, tig cov kev sib tw ntau lawm rau hauv kev txhim kho kom zoo thiab txuag nqi.