Kev npaj cov khoom siv molding
Lub hom phiaj ntawm kev npaj cov khoom siv molding yog sib tov ntau yam khoom siv raw uas tsim cov khoom molding rau hauv ib homogeneous tag nrho, thiab xyuas kom meej tias lub xeev ntawm molding cov khoom ua tau raws li qhov yuav tsum tau rau nias peev pwm.
Kev npaj tshwj xeeb yog cua sov kom yaj thiab sib tov ntau yam khoom siv raw ua ke. Tom qab ntawd, nyob rau hauv txias txias, cov khoom siv molding yog sib zog heev los ua ib qho muab tshuaj txhuam -zoo li lub xeev rau nias peev pwm. Qee zaum, cov khoom siv molding yog melted rau hauv cov kua thiab ncaj qha mus rau hauv lub peev pwm.
Recycling ntawm Moulding Materials
Thaum siv cov resin-raws li cov ntaub ntawv molding, vim yog cov kev xav tau zoo ntawm cov peev txheej pwm, cov ntaub ntawv nkauj xwb feem ntau yog siv los npaj cov khoom siv molding rau nias castings. Cov khoom siv molding rov ua dua tom qab demolding yog remelted, lim, thiab siv los ua peev pwm rau lub rooj vag thiab riser system.
Thaum siv wax-raws li molding cov ntaub ntawv, cov khoom molding tau tom qab demolding tuaj yeem siv dua thiab rov siv dua los ua cov peev txheej pwm tshiab. Txawm li cas los xij, thaum rov ua dua, cov khoom ntawm cov khoom molding deteriorate, nce brittleness, cov ntsiab lus tshauv, fluidity, thiab shrinkage, thiab xim hloov ntawm dawb mus rau xim av. Cov kev hloov pauv no feem ntau cuam tshuam nrog kev tsis zoo ntawm stearic acid hauv cov khoom molding. Yog li ntawd, txhawm rau txhawm rau kho cov khoom qub qub ntawm cov khoom pwm qub kom ntau li ntau tau, xab npum ntsev yuav tsum tau muab tshem tawm ntawm cov khoom pwm qub. Cov kev siv feem ntau suav nrog hydrochloric acid (sulfuric acid) kev kho mob, kev kho av nplaum, thiab electrolytic rov qab.
