Rotational molding thiab txhaj tshuaj molding txheej txheem ntawm PE roj yeeb nkab: PE roj yeeb nkab yog dav siv nyob rau hauv lub neej tam sim no thiab muaj ntau yam kev siv. Cov txheej txheem rotomolding thiab txhaj tshuaj molding ntawm PE roj yeeb nkab yog siv txoj kev ua no. Cov khoom siv feem ntau pulverized rau hauv cov hmoov, uas yog yaj thiab ntws hauv tshav kub; Qhov hnav tsis kam ntawm cov yeeb nkab yog 4 npaug ntawm cov yeeb nkab steel. Hauv kev thauj mus los ntawm av nkos, piv nrog cov kav hlau, HDPE cov kav dej muaj qhov hnav tsis kam, uas txhais tau hais tias HDPE kav muaj lub neej ntev kev pab cuam thiab kev lag luam; rotomolding siv ob hom PE: dav-hom phiaj thiab cross-linkable. Cov khoom lag luam muaj kev cuam tshuam loj thiab me me warpage, thiab nws qhov Performance index ntau yog feem ntau 3-8. Cov qib MI siab dua feem ntau tsis haum vim tias lawv tsis muaj kev cuam tshuam thiab ib puag ncig kev ntxhov siab tawg tsis kam rau cov khoom siv rotomoulded. HDPE muaj ntau daim ntawv thov suav txij li rov siv tau nyias phab ntsa dej khob mus rau 5-gsl cov kaus poom uas haus 1/5 ntawm HDPE tsim hauv tsev. Cov qib txhaj tshuaj molding feem ntau muaj qhov ntsuas ntawm 5 txog 10, nrog cov qib qis fluidity nrog toughness thiab ntau dua fluidity qib nrog processability.
