Kev Ntsuas Hluav Taws Xob Tais Cov Lus Qhia
Kev siv hluav taws xob cov nqi hluav taws xob zoo li cov twj tseem ceeb ntawm cov tshuab luam ntawv. Lawv cov kev qhia tshwj xeeb yog txiav txim siab los ntawm peb qhov tseem ceeb qhov ntev: lub qhov quav lub raj kab uas hla, thiab qhov muaj peev xwm siab. Ntau qhov ntau thiab tsawg ntau ntawm DN20 rau DN630 kom haum raws li kev xav tau txaus. 160 {{{6} Tee yog qhov tshwj xeeb rau cov kev siv nrog nruab nrab, kom ua kom muaj kev kub heev yam tsis muaj kev noj ntau yam. Thaum xaiv, xav txog qhov sib xyaw ntawm cov yeeb nkab phab ntsa tuab thiab cov khoom siv. PVC thiab Polyethylene version txhua tus muaj lawv tus kheej cov ntawv thov haum.
Lub ingenious Harvard Knot Tsim
Lub pob caus Harvard hauv caug ntawm 160-loj tee yog cov khoom ntawm engineers 'ingenuity:
Cov qauv txhawb nqa: cov qauv kauv muaj peev xwm nce lub siab muaj peev xwm ntawm kev sib koom ua ke los ntawm 40%.
Fusing qhov ntsuas: xim xim {{{}}} hloov lub nplhaib kom raug qhov tseeb qhia cov xwm txheej ua tiav.
Yuam kev - Ua pov thawj tsim: Asymmetregrical slots tiv thaiv rov qab muab rov qab.
Cov qauv no tshwj xeeb rau cov kev siv nrog cov hlua khi ruaj khov, xws li cov xov hluav taws xob, qhov chaw vuam tsim cov molecular {{qib bond.
Cov Cai Golden rau Sizing
Sizing tsis yog cov lej uas yooj yim; Peb lub ntsiab lus tseem ceeb yuav tsum tau txiav txim siab:
Flow txuam: Tus ntoo khaub lig sib xyaw - ntu ntu ntawm cov ceg ntoo yuav tsum muaj ntau dua 70% ntawm cov yeeb nkab loj.
Chaw Khaws Cia: Thaum lub sij hawm teeb tsa, tso cai rau 3-5% npoo rau kev nthuav dav thiab kev cog lus.
Kev Ntsuas Cov Tshuab: Rau tib cov yeeb nkab, nws raug nquahu kom siv sib npaug - txoj kab uas hla kev ruaj khov.
