Yeej Kev Sau Lub Tsev Thiab Lub Chaw Nres Ntuj Siv Li Cas Rau Kev Pab Yog Qhov Chaw Yog

Kev tsim kho tsev nruab yeej yog qhov tseem ceeb hauv kev tsim kho tsev nres tshuaj, txiav txim seb yuav ua li twj tau rau cov khoom hlwb los nres rau hauv chaw, tso siab tawm, thiab kuaj kom phem rau cov khoom tiag tiag. Kev nthuav dav hauv kev tsim kho tsev nruab yeej yuav tsum muaj kev sib raug zoo ntawm kev nyiaj ruaj khov thiab kev nyiaj ruaj ib txhis hauv tag nrho qhov kev tsim khoom.

Yog li cas xaim nruab yeej hwm ntau npaum li cas rau kev nres, kev tso siab tawm, thiab kev nyiaj ruaj hauv kev tsim kho tsev nruab yeej

Kojv ntev ntawm qhov tshuab tso cua sov txog ob peb yam no yooj yim los ntawm kev them nyiaj xws li vim li cas khoom siv zoo, dab tsi qhov chaw tseem ceeb xav tau, thiab yog hais tias muaj kev puas tsuaj ntau rau khoom los ntawm kev tshem tawm. Thaum cov qhov tshuab lo ntau, lawv nyuaj siab tshem tawm nyuj siab li 18 mus rau 22 feem pua, tab sis qhov no muaj kev phem vim tias cov khoom nyuaj sov dua uas ua rau lub sijhawm tso cua sov ntev dua. Tom qab ntawv, yog tias cov qhov tshuab me ntoo, kev them tso cua sov tuaj yeem tso tawm ntau heev li 35 feem pua dua qhov tseem ceeb, thiab muaj kev danger tshwm sim rau cov dundub polymer thaum kev tshem tawm siab dua li 40,000 sab laus ib feeb. Nrhiav qhov chaw tseem ceeb yog tias sau kev them tso cua sov saum 500 paun ib square inch tab sis kuj tsum tau pib tag nrho lub mold hauv ib feeb mus rau ib feeb kawg hauv engineering plastics uas siv nyiaj today.

Cov qhov tshuab tseem ceeb (Edge, Tunnel/Sub Gate) thiab kev them kojv ntev zoo tshaj

Ib puag ncig tshuab yuav tsum tau siv rau cov ntu tsis muaj tog vim tias lawv yog qhov tsim nyog thiab tsim kev sib txawv. Ntau tus neeg tsim khoom muab nws li 60 mus 80% ntawm lub hnub ntu. Txog rau cov tshuab tunnel thiab subgates uas feem ntau sib npaug li 0.5 mus 1.5 millimeters nyob hauv qhov loj, cov no feem ntau zoo dua rau kev tshuab automated degating. Qhov tsis zoo yog tias qhov kawv dav hlau ntawm lawv txhais tau tias kev ntxig tso zog yuav tsum about 10 to 15 percent ntau dua li tsha. Muaj ib co kev pab hlo pluv tshiab nyob rau hauv kev kho tshuab tshuab sib piv nrog qhov angle ib sab li 0.8 mus 1.2 degrees tau ua ib qhov tshwm sim tseem ceeb. Cov tshuab tshiab no txo cov ntu tsis txaus siab los ntawm 40% tsis ua rau muaj kev pheej hmoo rau kev sib txawv uas tsim cov tshuab tshuab tshwm sim.

Qhov kev sib txawv ntawm qhov chaw tshuab thiab hom ntawm cov ntu xob thaum muaj sink, voids, warpage, thiab cov duab xob

Thaum cov khaub ncaws tau muab tso rau qhov chaw tsis raug, qhov no tuaj yeem tshuam xywv li cas li 32% ntawm tag nrho qhov tsim khoob ncaj qog raws li cov kws tshuaj hauv cheeb tsam pom. Muab cov khaub ncaws sov rau near thin walls ces pheej saib tshwm sim li 3 lub zaus vim leej twg khoom nto plua pluaj nyiag dua. Cov khaub ncaws uas tshab kub rau ib qhov chaw yuav tshwm sim rau cov ntawv sau npe rau hauv li 12 mus rau 18% ntawm txhua qhov tshuab tshuaj. Ib qho kev kawm tshiab uas tau pub tseg hauv xyoo 2023 tau surov nthuav tawm tias kev txiav txim siab qhov chaw tso khaub ncaws muaj kev pab piv rau cov khoom nylon. Lawv pom tias thaum cov khaub ncaws tau raug muab tso rau qhov chaw tshiab, qhov sib txawv ntawm qhov khoob ncaj qog tau hloov los ntawm 0.8 mm mus rau tsuas yog 0.2 mm xwb. Cov nqe lus txhawb kom tso khaub ncaws tshiab kuj qhia tias: tso subgates rau hauv cov ntim ntau dua yuav cuam tshuam rau cov khaub ncaws tsis meej lawm li ob lub zaus kom compared to using edge gates in those thinner spots.

Kev Txhim Kho Kev Sib Thooj Ntawm Kev Tso Khaub Ncaws

Cov cuab yeej simulation advanced tam sim no tuaj yeem pab pom txoj kev flow fronts nrog qhov txaus siab ntawm 92% nyob ib puag ncig qhov chaw tshuab ntxuav. cov chaw ntxuav siv ntau qhov chaw ntxuav nrog kev daws teeb meem valve txwv tsis pub muaj kev hlo sib txawv tshaj 0.15 seconds nyob ib puag ncig cov duab nrawm. rau cov polymer muaj los ntawm glass, qhov chaw ntxuav tau muab tso rau hauv qhov kev tshwm sim tiv thaiv tseem ceeb tiam sis pab txhim kho kev txiav txim siab ntawm fiber los ntawm 30–35%, uas yog pab ntxiv qhov tsim nyog ntawm kev tiv thaiv nyob rau hauv cov khoom tiav.

Cov Ntsiab Lus Kawg ntawm Qhov Chaw Tso Khoom: Kev Pom Txij Qhov Chaw Tso Khoom Thiab Kev Siv Zoo

Kev Puaj Xwm ntawm Qhov Loj ntawm Qhov Chaw Tso Khoom rau Kev Tso Khoom Thaum Muaj Kev Tso Khoom thiab Kev Xav Tau ntawm Kev Tso Khoom

Thaum tsim tiv tes kho, qhov loj ntawm lub teb chaws muaj feem ntau hauv kuv lub tiv tes thiab yuav tias thawj khoom mus txwv rau hauv lub tiv tes. Lub teb chaws uas me dua li qhov xav tau, feem ntau yog dab tsi nyog 4mm rau cov khoom siv plastics, tshwm sim ntau dua rau hauv thawj khoom. Qhov no tuaj yeem tso tseg mus rau 30 los 50% ntau dua rau hauv kev tshav, uas txhais tau tias cov neeg tsim kho yuav tsum tau ntau dua li 15 los 20% ntau dua rau hauv kev tso tseg thaum tso khoom. Tom qab ntawv, yog tiv tes loj dua li qhov xav tau yuav cuam tshuav txog kev tshav meej, tab sis muaj tus nqi. Kev sov tseem ceeb ntev dua thiab muaj ntau dua khoom tsis siv. Feem ntau cov neeg tsim tiv tes muaj nyob hauv qab chaw. Lawv xav kom txoj kev pib zoo tsis muaj kev phom sij, nyob ib txhiab nrog kev tso tseg hauv qhov chaw uas tshuab tuaj yeem tso tseg nrog.

Lub Teb Chaws Muaj Txoj Kev Pib Rau Cov Tiv Tes Siv Ntau Lub Chaw

Kev siv cov chaw tshuab tsim kua hauv qab los yog chaw tshuab H-pliav txhob muab cov kab ntsug sib npaug rau tag nrho cov chaw, kom rov cuag saum 0.3 feeb nyog rau hauv 8-cavity systems. Cov kev kho tshuab sib xws txhob muab ntau hauv qab chaw—nyiaj hnub tshwm sim 8–12% ntawm kev tsis sib xws. Rau kev tsim khoom ntau, kev khiav sab nraud hauv qab 45 degrees yuav pab tso cai rau cov kab ntsug tsis muaj chaw tsis muaj neeg.

Yuav li cas Runner Design Txwv Yeej Rau Qhov Zoo Thiab Kev Tshwm Sim Sib Xws

Thaum cov khoom tsuag tshuab tauj tawm ntawm qhov muab ntim, kev ua zauv ua rau cov moleculs txiav txim siab nyob rau hauv qhov chaw tshwj xeeb. Qhov no cuam tshuam mus rau kev sib poob tsis zoo hauv qhov kub tso, uas tuaj yeem nce qhov teeb meem poob los ntawm 18 mus rau 22% kom ntau dua li cov khoom siv hauv qhov tawm tseem ceeb. Qhov txoj cwj pwm? Cov tawm tseem ceeb tshiab tsim los ntawm kev muab tso nrog kev hloov pauv yooj yim tuaj yeem pheej siab tias tsis muaj kev hloov pauv tseem ceeb hauv kev tawm tshuab, uas thiaj li khaws ceev dej num hauv ib qhov chaw los ntawm 40%. Kev daws teeb meem kub tseem tseem ceeb. Yog tsis muaj kub tshaj tawm hauv qhov tawm tseem ceeb no, lub sijhawm tsim khoom yuav nce los ntawm 25%, thiab kuj muaj kev nce tshaj plaws ntawm qhov tawm tseem ceeb rau cov khoom zoo li nylon 66. Cov neeg tsim khoom yuav tsum saib xyuas ntau thaum siv cov khoom tsim tshiab.

Kub, Ntxhiav, thiab Cov Tawm Tseem Ceeb Sib Chaw: Txoj Caij Lwm Ntawm Kev Pab Thiab Kev Muaj Ceev

Sib Piv Kuv, Ntxhiav, thiab Cov Tawm Tseem Ceeb Sib Chaw Hauv Kev Sau Lub Tsev Rau Kev Tsim Khoom

Cov chaw siv txhuv yooj yuav tsave qhov plastic hlwb hauv cov rooj kawg no los ntawm thaum nws tshav tawm los ntawm lub mold. Qhov no cuam tshuam rau ib xyim 15 mus rau 30% ntawm cov khoom tsis zoo ib zyareej thaum tus tshuab ncaws, thiab ntau dua lub sijhawm vim tias tag nrho yuav tsum nguas tag ua ntej. Cov chaw siv txhuv hla siv nyiaj sib txawv los tso kom cov manifold tau sov kom tsis txhob muaj leej twg solidifies, uas txo qhov khoom tsis zoo thiab cov sijhawm tshaib uas tshwm sim ib zaug tom ib zaug. Tab sis muaj ib qhov xwm txheej - cov chaw siv txhuv hla no feem ntau muaj nqi ntau dua li 20 mus rau 40% rau tib neeg siv khoom. Ib co chaw tsim khoom thiaj li sau ib qho kev xa ntsig hybrid, uas sib puag ntxiv cov nozzle siv hluav taws xob nyob deb ntawm cov cavities nrog cov rooj kawg cold channels nyob rau qhov chaw. Qhov kev xa ntsig tshiab no txo qhov khoom tsis zoo ib meco mus li tsis tas tshaj tawm ntau nqi. Ntseeg tias cov kev suav ntawm kev daws teeb meem kev ceev tuaj yeem pab ntxaug ntau, tab sis cov neeg saib xyawb yuav tsum suav zoo nyob rau hauv qhov muaj ntau npaum li cas lawv tsim khoom thiab cov khoom siv dab tsi lawv xav siv hauv hnub no.

Txoj Caij To taub thiab Kev Sauv Txheej Nruab Nrog Cov Chaw Tso Siab Hluv

Cov chaw tso siab hluv txo cov caij to taub los ntog 18–25% los ntog kev tso resin nyob hauv qhov sib hlau rau sab nraud, thim khov qhov sib hlau tuag. Kev sauv txheej tsawg kawg (±1.5°C) tiv thaiv kev puav tswg rau cov dundeeb uas muaj kev nyuaj siab rau kheatib npaum li PEEK lossis LCPs. Qhov tseeb no txo qhov sib txawv hauv kev nyuaj siab, pab tau kev tso khoom txaus siab rau cov khoom me me.

Kev Xil Piv Cov Chaw Tso Siab Rau Cov Dundeeb Zoo Heev thiab Kev Nyuaj Siab Rau Khoom

Thiab muab siv cov roj kub uas xeej tshaj tiam siab uas xuj tau kev coob yuav tsum ruaj khov, cov qhauv kub feem ntau yog qhauv zoo dua. Cov qhauv no tsis muaj kub tuaj yeem ua haujlwm zoo rau cov duab twg tiag tiag zoo li polypropylene vim tias qee qhov sib txawv le le ntawm kub tsis yog yuav ua rau muaj teeb meem loj. Qee tus neeg tsim khoom thiaj xa mus rau kev xaum qhauv tshiab thaum tshuaj xyuas nrog cov duab uas muaj ntau yam khoom sib txawv, xav txog cov teeb meem uas thermoplastic elastomers raug tsim tawm ntawm cov khoom nylon. Qhov tseeb loj ntawm cov qhauv kub yog thaum muab siv rau cov khoom uas muaj kev nyuaj siab rau sab nraud ib puag ncig zoo li acetal resins. Cov qhauv no txhim kho kev txuas mus los ntawm kev tsim khoom ntev tshaj qhauv no tsis muaj kub uas duab twg feem ntau nyob hauv cov chaw muaj kub, uas nce qhov nyuaj siab tias yuav phom sij los ntawm kev sib tham ntev nrog sab nraud ib puag ncig.

Kev Txhim Kho Qhov Chaw Tso Thiab Qhauv Rau Kev Tsav Duab Nyob Ze

Yog Li Cas Thiaj Muaj Qhov Chaw Tso Thiab Qhauv Ntawv Loj Hlau Txhim Kho Kev Tsav Duab Thiab Lwm Qhov Cost ntawm Chaw

Kev tau txoj meej sib npaug rau cov khaub ncaws thiab cov roj teeb yuav cuam tshuam ntau rau qhov chaw tsim khoom siv tshuab thiab lub ntsiab lus ntawm cov khoom tsis zoo. Yog tias cov khaub ncaws lo ntau, cov chaw tsim khoom yuav siv tshuab ntau dua thiab lawv cov tshuab yuav xav tau sijhawm ntev dua kom tiav ib lub sijhawm. Tom qab ntawv, cov khaub ncaws me me yuav ua rau muaj kev puas tsuaj los ntawm kev ruaj ntuag thiab kev hloov siab hauv qhov chaw. Lub Ntaub Tsoom Txog Kev Tsim Khoom Loj 2024 tau pom tias cov khaub ncaws me no tuaj yeem cuam tshuam mus rau 12-18% ntau dua li cov khaub ncaws sib npaug. Cov roj teeb uas muaj daim npaug sib npaug feem ntau yog qhov zoo tshaj rau kev pab tso cov khoom smoothly hauv lub form. Feem ntau nyob rau hauv daim plhaug lossis daim duab ntse, cov no pab tiv thaiv kev puas tsuaj los ntawm kev flow phom siab xeeb xwm, xws li kev tso roj lossis tso dej nyiag hauv cov khoom. Rau cov khoom thermoplastic, cov khaub ncaws feem ntau nyob rau hauv qhov sib txawv ntawm kaum milimet lossis mus rau 2.5 mm. Qhov kev xaiv meej no pab reduce kev puas tsuaj los ntawm kev ruaj ntuag hauv qhov kev tsim khoom, uas txhais tau tias kev duab ntawm cov khoom zoo dua thaum tsim tau ob lim ob lim cov khoom zoo ib yam.

Txo Qhov Tshuab Siv Lub Suab Kev Lag Luam Los ntawm Kev Sauv Kev Pab

Cov chaw tsim khoom tso tseg cov ntaub ntawv los ntawm 15 mus 40% hauv txhua lub sijhawm tsim, yog li cas xwb qhov kev xaiv no zoo ib txhis tshaj plaws thaum kav tsis muaj. Thaum cov neeg sau pob ntawv tsim cov duab uas muaj kev sib piv zoo ib yam, uas muaj txoj kev pib txaus siab sib npaug, lawv tuaj yeem tiv thaiv cov teeb meem uas tsis nyob zoo uas tso cai rau cov pob ntawv muaj ntau lub ntim. Ib co chaw tsim khoom tau pom tias kev hloov qhov loj ntawm cov chaw pib nyob rau sab nraud ntawm cov cheeb tsam sib txawv, los ntawm li 8 mm nyob rau qhov pib mus rau ib leeg 5 mm nyob rau sab ntxoog, tuaj yeem txo qhov siv ntawv plastik los ntawm ib feem ntawm 22%, thaum twg kuj tseem nyob ib feem ntawm kev sib txawv zoo. Rau cov neeg tsim khoom uas xav txog kev nyob ruaj khov, cov kev txhim kho no yooj yim rau kev ruaj khov thiab kev lag luam, tshwj tsis yog vim tias ntau yam ntawv tsim khoom tshaib siv zoo nrog kev tsim khoom uas tsawg dua 1500 psi.

Kev Tshuaj Xwm Zoo Tshaj: Kev Txhim Kev Nres vs Kev Nres Hluvcua nyob rau hauv Kev Sau Sauj Ua Ntau

Ntsiab Lus Sib Piv Kev Tshwm Kab Thiab Kev Txhim Hluvcua nyob rau hauv Kev Sau Sauj

Thermal gates txiav txej siv kev ntxuav qhov chaw tso tsis pub kom cov duab poob, uas pab tiv thaiv kev hlau tshuaj, tab sis tuaj yeem ua rau muaj teeb meem rau ib co khoom siv uas tsis nyob zoo nrog kub, xws li PEEK lossis nylon. Valve gates tsis zoo li ntawd, lawv muaj cov chaw tshuab tshem tseg uas pab rau tus neeg sauvtswj kom paub meej tias yuav tso ntau npaum li cas hli nyob hauv qhov chaw tso. Qhov sib txawv no muaj txiaj ntsig loj: designers sau tias muaj ntau dua 24% yam khoom tsis raug tshem tseg thaum siv valve gates hauv cov hais pov thawj tseem ceeb no. Ib qho kev suav xyaum piav los ntawm 2024 tau pom tias valve gates pab kho kom sib txawv hauv ntau yam khoom tsawg dua 0.8%, vim lawv tso kawm ntau dua. Thermal gates tsis ntau heev, muaj 1.5% sib txawv, tab sis tseem txaus los pab cov neeg tsim khoom xav dua txog qhov kev xaiv ntawm lawv nyob qhov twg raws li yam khoom uas lawv xav siv.

Nqe ntsoog ntawm Valve thiab Thermal Gates txog Cycle Time, Pressure Control, thiab Cooling

Kev pib tshuab tuaj yeem txav nyiag sijhawm ntau dhau los ntawm 12 mus rau 18% vim tias lawv tseem ceeb npaum li, yog li tsis muaj sijhawm tig txej rau qhov chaw sov. Tab sis qhov kev phom sij yog tias cov khaubnpag no muaj ntau qhov chaw xob thaiv uas yuav tsum tau saib xyuas tas li. Ntau tamsim pom tias lawv yuav tsum tau kho dua li 50,000 zaug, thaum qhov chaw kho thiab sau ua ntej feem ntau nyuaj dua ntau heev, nyob rau 200,000 zaug ua ntej yuav tsum tau kho. Cov khaubnpag kho thiab sau ua ntej tseem pab ua rau kev tsim kho dub looj yooj yim dua, tab sis lawv muaj qhov kev txwv txwm nyob hauv kev daws teeb meem nyob hauv kev saib xyuas teeb. Rau cov khaubnpag kho thiab sau ua ntej, tus neeg tshuab yuav tsum tswj lub teeb kub zoo siab, feem ntau nyob rau hauv 1.5 degrees Celsius, kom raug tag, thaum qhov chaw pib tshuab tuaj yeem tsis hlo tshaj 5 degrees Celsius. Nrhiav cov ntaub ntawv tshuaj xyuas los ntawm kev tsim kho tshuaj precision pom tias cov khaubnpag kho thiab sau ua ntej tseem pab txav nyiag crystallinity uas tsim los ntawm kev rub tawm tau li 19% rau cov khoom siv zoo li POM. Tom qab ntawv, cov khaubnpag pib tshuab pab tau zoo dua rau kev tswj lub rooj sib txawv rau cov khoom uas xav tau kev tswj ntau heev, feem ntau txog 0.01 millimeters, vim tias lawv tswj lub zog hauv qhov kev tsim kho.