Polymer lim rau cov txheej txheem melting

Lub tshuab lim dej yog cov cuab yeej tseem ceeb rau kev kub ceev spinning thiab nplua-denier spinning. Nws yog siv rau nruam pom ntawm polymer melts kom tshem tawm impurities thiab unmelted hais nyob rau hauv lub yaj los txhim kho cov spinning kev kawm ntawm cov yaj. Thiab los xyuas kom meej qhov zoo ntawm spinning.

Lub tshuab lim dej yog siv rau kev pom tsis tu ncua ntawm high polymer yaj kom tshem tawm impurities thiab unmelted hais nyob rau hauv lub yaj, txhim kho cov spinning kev ua tau zoo ntawm cov yaj thiab xyuas kom meej spinning zoo. Lub tshuab lim dej yog cov cuab yeej siv tsis tau rau kev kub ceev spinning thiab nplua-denier spinning. Nws ua lub luag haujlwm pom tseeb hauv kev txuas ntxiv lub neej ntawm cov khoom siv spinning, txhim kho kev siv cov khoom siv thiab ua kom cov zis ntau ntxiv.

Tiv tauj peb

cov khoom paub meej

Hauv kev tsim cov spunbonded nonwovens, txhawm rau kom ntseeg tau tias qhov kev vam meej ntawm cov txheej txheem spinning thiab txo qhov tshwm sim ntawm tawg filaments thiab dripping, ob pawg ntawm cov khoom siv lim dej feem ntau tau teeb tsa. Thawj lim (nruab lim) yog ntsia nruab nrab ntawm cov ntsia hlau extruder thiab lub metering twj tso kua mis, thiab nws lub luag haujlwm tseem ceeb yog lim tawm cov impurities loj dua, txhawm rau txuas lub sijhawm siv lub tshuab lim thib ob thiab tiv thaiv lub twj tso kua mis metering thiab spinning twj. , txhawm rau ua kom rov qab siab ntawm extruder, yog li ua rau cov pa tawm thiab plasticization ntawm cov khoom thaum lub sij hawm compression. Qhov thib ob lim (zoo lim) yog ntsia rau hauv spinning los ua ke, thiab nws lub luag haujlwm tseem ceeb yog lim cov impurities zoo, cov ntsiab lus siv lead ua, thiab lwm yam, kom tsis txhob txhaws ntawm spinneret, kom ntseeg tau tias qhov kev vam meej ntawm spinning, thiab txhim kho qhov zoo. ntawm fiber. Cov duab ntawm cov ntxaij lim dej yog nyob ntawm cov duab thiab qhov loj ntawm lub spinneret, thiab feem ntau yog cov lim dej ntau ntau.