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Tsev > Xov xwm > Ntsiab lus
Txhaj Tshuaj Pwm Cov Hwjchim
May 25, 2018

Rooj vag

Nws yog txoj hlua txuas lub ntsiab channel (lossis khiav) thiab kab noj hniav. Cheeb tsam hauv cheeb tsam ntawm cov channel yuav sib npaug zos (lossis khiav), tab sis feem ntau nws txo qis. Yog li nws yog qhov tsawg tshaj plaws ntawm tag nrho cov neeg khiav dej num. Cov duab thiab qhov loj ntawm lub qhov rooj muaj ib lub zog zoo rau qhov zoo ntawm cov khoom.


Lub luag haujlwm ntawm lub qhov rooj yog:

IB, tswj cov khiav dej:

B. Rau hauv kev txhaj tshuaj, thaum ntxov ntawm qhov yaj ntawm tshooj no tuaj yeem tiv thaiv kom tsis txhob rov qab khiav qeeb:


C. Cov khoom uas kis tau los ntawm kev raug qis qis kom ua rau kom qhov kub thiab txias, uas yog txo qhov pom kev viscosity kom ua rau cov dej fluidity:


D, mus pab txhawb kev sib cais ntawm cov khoom thiab khiav lawv. Qhov tsim ntawm lub rooj vag puab, qhov loj, thiab qhov chaw nyob yog nyob ntawm qhov xwm ntawm cov yas, qhov loj thiab cov qauv ntawm tsab xov xwm. Feem ntau, qhov laj kab ntawm lub qhov rooj ntawm lub qhov rooj yog qhov rectangular los yog ncig, thiab cheeb tsam ntawm qhov cross-sectional yuav tsum me me thiab qhov ntev yuav tsum luv. Qhov no tsis yog raws li cov lus saum toj no, tab sis tseem vim hais tias qhov rooj me me ua loj thiab yooj yim dua, thiab lub qhov rooj loj yog qhov nyuaj kom txo. Yuav tsum xaiv qhov rooj qhov rooj qhov twg yuav tsum tau xaiv qhov khoom yog qhov hnyav uas tsis cuam tshuam rau qhov zoo li. Rooj vag loj tsim nyog yuav tsum coj mus rau hauv tus account lub qhov ntawm yas yaj. Cavity Nws yog qhov chaw rau molding yas khoom nyob rau hauv lub puab. Cov cheebtsam uas tsim cov kab noj hniav yog collectively hu ua molded qhov chaw. Feem ntau ntawm cov molded feem ntau muaj ib lub npe tshwj xeeb. Cov molded qhov chaw uas ua li cov duab ntawm cov khoom yog hu ua concave molds (tseem hu ua poj niam tuaj pwm) thiab tshwm sim rau sab hauv cov khoom ntawm cov khoom.


(xws li qhov, qhov qhauj, lwm yam) yog hu ua cores lossis punches (tseem hu ua txiv neej pwm). Thaum tsim ib qho molded, qhov dav dav ntawm cov kab noj hniav yuav tsum tau txiav txim siab raws li cov khoom ntawm cov yas, qhov ntsuas ntawm qhov khoom, qhov ntev, thiab kev siv cov kev cai. Qhov thib ob yog los xaiv qhov sib kis, qhov chaw ntawm lub qhov rooj thiab qhov qhib qhov quav, thiab qhov kev ua tsis raws kev raws li txoj kev txiav txim siab.