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Hais txog txoj kev Extrusion txhuas

Wuxi XSX hlau khoom Co., Ltd | Updated: Jun 03, 2016

Extrusion txhuas yog siv los tsim cov khoom ntawm ib zag cross-sectional profile. Ib cov khoom raug thawb los ntawm ib tug tuag ntawm cov yam cross-section. Qhov ob lub ntsiab zoo ntawm txoj kev no dua lwm tus raug dab no nws muaj peev xwm los ua cross-sections heev, thiab ua hauj lwm cov ntaub ntawv uas yog nkig, vim hais tias qhov khoom ntawd tsuas encounters compressive thiab shear stresses. Nws kuj tas qhov uas muaj tus mob deg tas.


Teeb duab yog kev zoo, uas nws siv tensile zog ntawm cov khoom yuav rub nws los ntawm qhov tuag. Qhov no txwv cov kev hloov uas yuav tsum tau rau ib kauj ruam, ces yeej tsuas siv rau sob rho los, thiab ntau theem feem ntau ntxiv. Teeb duab yog qhov tseem ceeb tshaj los ua hlau. Bar hlau thiab txhuas raj yog feem ntau kuj xis teb xis chaw.

Extrusion tej zaum yuav nruam (raws uas ua ntaub indefinitely ntev) los yog (yuav ua tau ntau daim) nruam ib. Lub extrusion txoj kev yuav ua tau nrog cov khoom kub los no. Khoom extruded feem ntau muaj co, polymers, ceramics, ua vaj tse, ua si ua khob noom cookie thiab cov khoom noj. Cov khoom ntawm extrusion feem ntau hu ua "extrudates".

Hollow muaj kab noj hniav li extruded khoom tsis tau yuav ua siv yooj yim ca extrusion tuag, vim yuav muaj tsis muaj kev pab txhawb lub chaw barrier ntawm qhov tuag. Tiag mas, cov tuag assumes luaj li lub noob ib ntu uas qhov tob, xub pib nrog ib hom profile ua txhawb tau lub chaw seem. Tus tuag zoo ces ntxiv hauv lawv cov kev hloov raws cov sijhawm mus rau qhov zoo kawg lawm, nrog rau tej daim tshem tawm qhov chaw txaus siab tuaj rau tus tuag. Cov khoom ntawd faib ua txhawb hab fuses together lug tsim lub kaw yam khoom.

Txoj kev extrusion hauv co kuj yuav nce lub dag lub zog ntawm cov khoom.

Txheej txheem

Txoj kev xub pib los ntawm cua sov cov khoom npaj (kom sov los sov extrusion). Nws yog ces loaded mus rau hauv lub thawv nyob rau hauv xovxwm. Ib ntu dummy muab tso qab rau nws uas phaw yaj ces presses rau cov khoom siv thawb nws hauv qhov tuag. Tom qab ntawv nws lub extrusion no stretched thiaj li yuav ncaj rau nws. Yog hais tias zoo zog tas ces nws yuav tshav kub tua los yog txias ua haujlwm.

Lub extrusion piv txhais tias starting cross-sectional tsam faib rau thaj tsam ntawm lub kawg extrusion cross-sectional. Yog ib lub zoo tseem ceeb ntawm kev extrusion yog tias no piv yuav loj heev thaum uas tseem yuav ua tau yam zoo.

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