Cov yam ntxwv ntawm Co-rotation Twin-screw Extruder thiab Cov Ntsiab Cai Tseem Ceeb ntawm Kev Sib Xyaws Ntsiab

Muaj ntau hom twin-screw # tshuab extrusion, ntawm cov uas lub meshing co-directional twin-screw #extruder yog ib hom khoom siv tsim khoom thiab ua cov khoom siv dav dav hauv kev lag luam yas. Hom extruder no muaj ob lub "building block" screws, barrels, power units, temperature control devices, thiab lwm yam uas koom nrog ib leeg. Muaj ntau qhov chaw pub mis thiab qhov chaw nqus tsev/tsis nqus tsev rau ntawm lub fuselage.

Main nta

1. Ob lub ntsia hlau tig mus rau tib qho kev taw qhia thiab ua haujlwm tib yam, tsim kom muaj kev sib txhuam sib luag ntawm cov khoom sib cuag thiab lub thoob, thiab lub zog ntawm qhov kev sib txhuam no tuaj yeem hloov kho los ntawm kev sib xyaw ua ke ntawm cov ntsia hlau, kev tsim qhov sib nrug thiab lwm yam.

2. Lub geometry thiab kev sib hloov ntawm cov ntsia hlau ua rau cov ntsia hlau muaj cov khoom faib tawm zoo thiab muaj peev xwm sib tov, uas yog qhov tsim nyog rau kev sib tov ua haujlwm. Tom qab cov khoom nkag mus rau hauv lub thoob thiab mos, txij li cov ntsia hlau ntxaib nyob rau hauv cov lus qhia sib txawv hauv thaj chaw meshing, ib lub ntsia hlau rub cov khoom mus rau hauv qhov sib txawv meshing, thiab lwm lub ntsia hlau thawb nws tawm ntawm qhov sib txawv. Yog li ntawd, cov khoom raug hloov pauv los ntawm ib lub ntsia hlau mus rau lwm qhov ntawm no, qhia txog kev txav mus los "∞". Kev txav mus los no muaj qhov ceev ceev ntawm qhov chaw meshing, uas yog qhov zoo heev rau kev sib tov thiab homogenization ntawm cov khoom, thiab qhov sib txawv hauv thaj chaw meshing yog me me heev, thiab qhov ceev ntawm cov xov thiab qhov zawj ntawm qhov chaw kneading yog qhov sib txawv, uas muaj cov nyhuv shear siab, yog li ua tiav cov yas sib xws.

3. Lub #extruder lub ntsia hlau thiab lub thoob tau sib xyaw ua ke. Muaj ntau hom xov, suav nrog cov ntsiab lus xa khoom, cov ntsiab lus kneading, cov ntsiab lus shearing, cov ntsiab lus rov qab xov thiab cov ntsiab lus xov siab, txhua tus ua lub luag haujlwm sib txawv. Raws li qhov xav tau ntawm kev ua cov khoom siv, ntau yam khoom sib xyaw ua ke los ntawm cov khoom siv hauv tsev, thiab los ntawm kev tsim qauv zoo tshaj plaws, nws tuaj yeem hloov kho rau kev ua cov txheej txheem ntawm ntau yam khoom siv mis.

Cov ntsiab cai yooj yim ntawm #extruder lub hau sib xyaw ua ke

Rau ib tug twin-screw #extruder, cov ntsia hlau feem ntau muab faib ua ntu pub mis, ntu yaj, ntu sib tov, ntu tso pa tawm thiab ntu homogenization. Cov khoom siv xov feem ntau suav nrog kev xa khoom, yaj, txiav, sib tov cov khoom siv, tswj lub sijhawm nyob thiab lwm yam haujlwm. Cov khoom siv xov ntawm cov ntsia hlau ntxaib tshuab riam raug muab sib xyaw ua ke hauv txoj kev "ua lub tsev thaiv". Hauv kev xyaum, lawv tuaj yeem hloov kho raws li qhov xav tau ntau yam khoom. Yog li ntawd, kev sib xyaw ua ke ntawm cov ntsia hlau yog qhov tseem ceeb rau kev hloov kho ntawm cov txheej txheem extrusion twin-screw.

1. Yuav tsum siv cov xov hlau loj ntawm qhov chaw pub mis kom txiav tau du.

2. Hauv seem yaj, yuav tsum siv ib txoj xov me me los tsim kom muaj qhov siab, kom cov khoom siv tau nias thiab yaj. Yuav tsum teeb tsa lub pob zeb sib tsoo nrog lub kaum sab xis tsis sib xws ntawm 90 ° kom sib npaug qhov siab, thiab yuav tsum siv lub pob zeb sib tsoo nrog lub kaum sab xis tsis sib xws ntawm 30 ° los faib thiab sib tov cov khoom siv ua ntej. Yuav tsum teeb tsa lub pob zeb sib tsoo los ntawm nruab nrab ntawm seem yaj, thiab yuav tsum teeb tsa cov pob zeb sib tsoo ntawm qhov sib nrug.

3. Hauv seem sib tov, nws yog siv rau kev txiav, ua kom zoo thiab faib cov khoom me me. Kev teeb tsa cov ntsiab lus xov hauv seem no nyuaj heev thiab xav kom cov neeg tsim qauv muaj kev paub dhau los. Hauv seem no, cov blocks kneading nrog cov ces kaum staggered ntawm 45 ° thiab 60 ° feem ntau yog siv los txhawb kev txiav, thiab cov ntsiab lus tshwj xeeb xws li cov ntsiab lus hniav lossis cov ntsiab lus "S"-puab siv los pab. Txawm li cas los xij, nws yuav tsum nco ntsoov tias cov ntsiab lus kneading thiab shearing yuav tsum tsis txhob teeb tsa ntau dhau, thiab tsis txhob teeb tsa lawv nruj dhau, kom tsis txhob txiav hnyav dhau. Tsis tas li ntawd, txhawm rau txhim kho lub peev xwm xa khoom ntawm cov khoom hauv seem no, cov ntsiab lus xa khoom xov yuav tsum tau teeb tsa ntawm lub sijhawm, uas yog, lub block kneading thiab cov ntsiab lus xa khoom xov tau staggered nrog ib leeg.

4. Yuav tsum teeb tsa ib qho khoom siv rov qab los yog ib qho khoom siv rov qab ua ntej qhov chaw nres tsheb lossis qhov chaw nqus tsev, yuav tsum teeb tsa ib qho khoom siv loj uas muaj cov xov hlau ua ke ntawm qhov chaw nres tsheb lossis qhov chaw nqus tsev, thiab yuav tsum teeb tsa ib qho khoom siv me me uas muaj cov xov hlau ua ke tom qab qhov chaw nres tsheb lossis qhov chaw nqus tsev.

5. Hauv seem homogenization, cov xov hlau yuav tsum maj mam txo kom ua tiav supercharging thiab txo qhov ntev ntawm qhov rov qab siab. Tib lub sijhawm, yuav tsum tau them sai sai rau kev siv cov xov ib lub taub hau thiab cov xov dav dav kom txhim kho lub peev xwm tso tawm thiab zam kev xau khoom.