1. Yas txhaj tshuaj tshuab
Kev txhaj tshuaj yas yog txoj hauv kev txhaj tshuaj molding thiab txhaj tshuaj molding. Nws cov khoom siv hu ua yas txhaj tshuaj molding tshuab, lossis txhaj moulding tshuab rau luv. Kev txhaj tshuaj yas moulding tshuab yog cov khoom siv moulding tseem ceeb uas ua rau thermoplastic thiab thermosetting yas ua ntau yam khoom yas. Ordinary yas txhaj tshuaj moulding tshuab hais txog kev siv ntau tshaj kab rov tav, ntsug lossis angular ib leeg-chaw nres tsheb txhaj tshuaj moulding tshuab rau kev ua cov thermoplastic ib leeg ntsia hlau lossis nqus dej.
Lwm yam kev txhaj tshuaj moulding machine, xws li thermosetting plastics, cov txheej txheem ua npuas ncauj, ntau qhov sib xyaw, nti, tshuab pa, thiab lwm yam kev txhaj tshuaj molding tshuab, xa mus rau cov uas muaj qhov sib txawv ntawm cov yas txhaj tshuaj moulding tshuab hauv cov ntaub ntawv yuav tsum tau ua thiab cov yam ntxwv ntawm lub tshuab ua haujlwm. Txhaj tshuaj tshuab moulding. Txog 30% ntawm cov khoom siv raw cov yas nyob hauv lub ntiaj teb yog siv rau kev txhaj tshuaj molding, thiab cov tshuab txhaj tshuaj yog li 40% ntawm tag nrho cov khoom ntawm cov tshuab yas, thiab tau dhau los ua ib feem tseem ceeb ntawm kev lag luam yas kev lag luam thiab yas kev lag luam tshuab, thiab nws yog kev loj hlob ntawm yas tshuab khoom lag luam. Ib qho ntawm cov qauv nrawm nrog feem ntau ntau yam thiab qhov tshwj xeeb thiab qhov loj tshaj plaws ntau lawm ntau.
2. Yas extruder
Cov yas extrusion moulding khoom, yas extruder feem ntau yog hu ua lub tshuab tseem ceeb, thiab cov cuab yeej siv txuas tom qab uas sib raug nrog cov yas extrusion moulding tshuab hu ua lub tshuab pabcuam. Tom qab ntau tshaj 100 xyoo ntawm kev txhim kho, cov yas extruders tau muab los ntawm tus thawj ib leeg-ntsia hlau, ntau-ntsia hlau, ntau-ntsia hlau, thiab txawm tias tsis yog ntsia hlau qauv. Lub tshuab yas extruder (tus tswv tsev) tuaj yeem siv nrog ntau yam yas maus taus tshuab xws li cov yeeb nkab, zaj duab xis, tuav cov khoom, monofilament, tiaj tus hlau, strapping, extruding net, pawg thawj coj saib (ntawv) cov khoom, profiled khoom, pelletizing, cable txheej, thiab lwm yam. Txhawm rau tsim los ntawm ntau cov yas yas extrusion molding ntau lawm kab los tsim ntau yam khoom yas. Yog li no, yas extrusion molding tshuab yog ib qho ntawm cov qauv siv dav hauv yas kev lag luam.
3. Yas tshuab moulding tshuab
Tshuab moulding muaj ob theem pib: thawj zaug, lub parison yog tsim, thiab tom qab ntawd ua kom cua (thiab ncab qws) yog siv rau radially inflate (thiab axially stretch) lub parison ua kom nws nyob ze rau (ncab) tshuab moulding Lub pwm kab noj hniav muab cov duab thiab qib loj ntawm cov pwm kab noj hniav rau cov khoom lag luam thiab txias nws.
4. Ntau txheej tshuab tshuab moulding
Muaj ob hom molding: co-extrusion tshuab moulding thiab co-txhaj tshuaj tshuab molding; ncab tshuab moulding suav nrog kev txhaj tshuaj ncab tshuab moulding thiab extrusion stretch tshuab moulding. Stretch tshuab moulding yuav muab faib ua ib theem txuj thiab ob-kauj ruam txujci.
5. Nias thiab hloov lub tshuab moulding
Compression molding thiab hloov moulding yog lub ntsiab molding txoj kev rau thermoset plastics. Cov xovxwm siv rau compression moulding thiab hloov moulding tshuab rau hloov moulding yog lub ntsiab molding khoom rau kev ua ntau yam khoom yas los ntawm thermoset plastics. Txoj haujlwm ntawm cov xovxwm yog thov siv lub siab rau cov yas los ntawm cov yas pwm yas. Yog tias siv mould ruaj ruaj, nws tseem muaj txoj haujlwm qhib thiab kaw lub pwm thiab thim cov khoom. Cov khoom siv hluav taws xob siv rau compression molding tau muab faib ua ob pawg: lub tshuab ua kom lub zog thiab cov xovxwm hydraulic. Txij li cov chaw tsim khoom, kev ua haujlwm thiab kev kho ntawm lub tshuab muaj cov tshuab muaj cov nyom ntau dua li cov xovxwm hydraulic, thiab lawv tsis tsim nyog rau kev nias molding ntawm qhov yas loj, lawv maj mam tshem tawm. Cov presses siv yog qhov tseem ceeb hydraulic presses. Lub siab nruab nrab ntawm cov xovxwm hydraulic feem ntau suav nrog roj thiab dej. Cov qub yog dav siv hauv cov khoom me me thiab nruab nrab. Cov hloov khoom siv moulding tuaj yeem ua tib qho xovxwm hydraulic zoo ib yam li kev nias moulding, lossis lub tshuab hloov moulding tuaj yeem siv. Lub tshuab hloov moulding tshuab ua tau yog ob chav siab siab xovxwm nrog ob lub tog raj kheej hydraulic. Raws li nws cov qauv, nws muaj peev xwm raug faib ua ke thiab nce ob chav siab hom thiab txoj cai kaum sab xis.
6. Yas tshuab ua npuas ncauj
Muaj tsuas yog peb txoj hauv kev yas thermoforming, uas yog, poj niam pwm tsim, txiv neej pwm tsim thiab khub-molding. Lub tshuab thermoforming yuav tsum muaj peev xwm rov ua cov txheej txheem thermoforming ntau lawm ua haujlwm raws li cov txheej txheem los ua tib yam khoom. Muaj ntau hom tshuab thermoforming, suav nrog phau ntawv, siv tshuab ib nrab-lub tshuab tsis siv tshuaj thiab tshuab tsis siv tshuaj. Qhov ntim ntawm thermoformed cov khoom lag luam yog loj thiab cov ntau yog qhov me me, yog li cov tshuab semi-automatic lossis phau ntawv thermoforming tau tsim nyog. Hloov siab, yog tias cov khoom me me hauv qhov loj thiab muaj ntau qhov ntau thiab tsawg, lub tshuab siv lub tshuab ua npuas (thermoforming) yuav tsim nyog dua.
