Ib qho nyiaj ntawm foaming tus neeg sawv cev thiab dej vapor yog khaws cia hauv cov hlaws ua ntejnthuav dav by EPS pre nthuavtshuab. Thaum lawv tawm ntawm lub tshuab, lawv condense rau hauv cov kua, thiab cov kua foaming tus neeg sawv cev dissolves nyob rau hauv polystyrene, thiaj li hais tias lub siab nyob rau hauv lub npuas yog sai txo, thiab muaj tsis zoo siab (ib nrab nqus tsev vacuum) nyob rau hauv lub npuas. Cov hlaws dai yog mos heev thiab yooj yim rau deform. Yog li ntawd, thaum lub sij hawm huab cua, sim tsis txhob ua kom lub cua siab loj heev, lub puab phab ntsa ntawm cov pa duct yuav tsum du li sai tau, thiab lub vojvoog dabtsi yog khoov yuav tsum loj npaum li sai tau (txo kev sib tsoo kuj). Lub raj xa dej yuav tsum yog tus neeg xyuas pib zoo ntawm hluav taws xob. Tag nrho cov kab yuav tsum tau muab tso rau hauv av kom tsis txhob muaj hluav taws xob hluav taws xob, thiab kev sib kis ceev yuav tsum tsis pub tshaj 8m / s kom tsis txhob muaj cov hlaws puas.
Cov hlaws cia li tawm ntawm EPS ua ntejnthuav davtshuab ntub dej. Tom qab raug tso tawm los ntawm prenthuav davtshuab, lawv nqus cua thiab mam li nco dheev ntsib txias, ua rau lub condensation ntawm foaming tus neeg saib xyuas nyob rau hauv lub honeycomb cell thiab tsim ntawm tsis zoo siab nyob rau hauv lub cell. Yog li ntawd, cov hlaws yuav tsum tau muab tso rau ib lub sij hawm ntawm lub sij hawm tom qab prenthuav dav. Ntawm qhov tod tes, lawv yuav tsum tau qhuav, thiab ntawm qhov tod tes, lawv yuav tsum nkag mus rau hauv cov huab cua kom tshem tawm qhov tsis zoo siab, thiaj li ua kom sib npaug ntawm lub siab sab hauv thiab sab nraud ntawm tes, txhawm rau kom tsis txhob muaj kev sib tsoo ntawm lub cev. npuas qhov thiab ua rau cov hlaws elastic.
Cov txheej txheem ntawm ziab, txias thiab ruaj khov ntawm tes ntawm EPS hlaws cia li tawm ntawm EPS ua ntej expander is called ripening. Ripening can improve the further expansion, fusibility between beads and elasticity of beads in the molding process, which is conducive to improving the quality of EPS products.
Thaum lub sij hawm curing txheej txheem, cov hlaws dai yog txias los ntawm huab cua, thiab cov foaming tus neeg sawv cev thiab chav nyob rau hauv lub qhov hws yog condensed rau hauv cov kua, uas ua rau tsis zoo siab nyob rau hauv lub pores. Lub sijhawm no, huab cua yuav nkag mus rau hauv cov npuas sab hauv los ntawm cov npuas npuas kom sib npaug ntawm lub siab hauv cov npuas nrog rau sab nraud, uas yuav ua rau cov khoom ua ntej.nthuav davxa cov hlaws elastic.
Ripening tuaj yeem muab faib ua ntuj ripening thiab siab ripening. Nyob rau hauv txias, qhuav thiab ventilated tej yam kev mob, ntuj aeration yog hu ua ntuj ripening. Nws yog hu ua siab kho kom inflate lub ntuj matured prenthuav davtso cov hlaws los ntawm kev ntxiv cov pa roj (cua thiab nitrogen) rau hauv lub thawv kaw kom lawv muaj lub siab.
