Yuav ua li cas xaiv cov theoretical txhaj txhaj tshuaj ntawm txhaj tshuaj molding tshuab raws li qhov zoo ntawm cov khoom?
Tag nrho qhov zoo ntawm cov khoom yog xam
Q = KX (khoom zoo + khoom zoo ntawm lub qhov rooj loj)
Qhov twg, K - coefficient yog 1.1 ~ 1.3.
Tus nqi ntawm lub cev yuav tsum tau txhaj rau hauv cov khoom no los ntawm txhaj tshuaj molding tshuab yog xam
Qs = Q x 1.05 / rho tawm r
Lub tom kawg yog qhov khoom ceev.
Muab piv txwv: qhov zoo ntawm cov khoom PE yog 200g, thiab cov khoom siv khiav hauv qhov khiav yog kwv yees li 22g. Tus nqi ntawm cov khoom siv rau kev txhaj tshuaj molding ntawm cov khoom no los ntawm kev txhaj tshuaj molding tshuab (g) yog dab tsi?
Cov ntaub ntawv siv rau kev txhaj tshuaj molding ntawm cov khoom: Q = 1.2 * (200 + 22) = 266.4 (g)
Nqus plua plav: Qs = 266.4 x 1.05 / 0.92 = 304.04 (g)
Kev ntsuas theoretical ntim ntawm txhaj tshuaj molding tshuab rau cov khoom no yuav tsum yog me ntsis siab dua Qs.