Cov hauv paus ntsiab lus tseem ceeb ntawm kev txhaj tshuaj- molded ib feem ntawm cov qauv tsim yog los xyuas kom meej cov khoom ua haujlwm, ua kom yooj yim pwm tsim, txo cov nqi tsim khoom, thiab txhim kho tus nqi tawm los. Cov hauv qab no yog cov ntsiab lus tseem ceeb ntawm kev tsim:
🔧 Cov Ntsiab Cai thiab Cov Lus Qhia Ua kom zoo
1. Uniform Phab Ntsa Thickness Tsim
◦ Zam kom tsis txhob muaj cov tuab tuab lossis nyias nyias. Qhov pom zoo lub ntsiab phab ntsa thickness yog 1.5-4mm (nyob ntawm seb cov khoom).
◦ Kev hloov pauv ntawm cov ntu tuab thiab nyias yuav tsum du (txoj kab nqes Tsawg dua lossis sib npaug li 1: 3) txhawm rau tiv thaiv qhov tsis xws luag xws li cov cim dab dej thiab kev ua tsov rog.
Piv txwv li: Reinforcement rib thickness Tsawg dua los yog sib npaug li 60% ntawm lub ntsiab phab ntsa thickness.
2. Draft Angle
◦ Sab nrauv phab ntsa vaj huam sib luag loj dua los yog sib npaug rau 1 degree, sab hauv nto Ntau dua los yog sib npaug rau 1.5℃(cov kab noj hniav sib sib zog nqus xav tau lub kaum sab xis loj dua).
◦ Rau qhov chaw zoo nkauj, lub kaum sab xis yuav tsum tau nce 0.25℃ib 0.025mm ntawm qhov tob ntawm kev ntxhib los mos.
3. Txhim kho Ribs thiab cov qauv kev txhawb nqa
◦ Rib qhov siab Tsawg dua los yog sib npaug li 3 npaug ntawm phab ntsa tuab, nrog lub hauv paus fillet (R=0.25-0.4 zaug ntawm phab ntsa tuab).
◦ Zam kev sib tshuam ntawm kab; siv staggered layouts kom txo tau kev ntxhov siab concentration.
4. Kev hloov pauv hloov pauv
◦ Sab hauv kaum vojvoog R Ntau dua lossis sib npaug li 0.5 npaug ntawm phab ntsa tuab; sab nraud kaum sab xis R=sab hauv kaum R + phab ntsa thickness tus nqi.
◦ Tshem tawm cov kaum ntse ntse kom txo tau qhov kev pheej hmoo ntawm kev ntxhov siab tawg.
5. Qhov thiab qhov tsim tsim
◦ Qhov deb ntawm lub qhov ntug Ntau dua lossis sib npaug ntawm lub qhov taub; Kev ncua deb ntawm qhov Loj dua lossis sib npaug li 2 npaug ntawm lub qhov taub.
◦ Los ntawm- qhov yog nyiam tshaj qhov qhov muag tsis pom; qhov tob-rau- txoj kab uas hla tsawg dua los yog sib npaug rau 4: 1 (kom tiv thaiv cov tub ntxhais pin deformation).
Ntsiab Taboos
• ❌ Zam tsis txhob cuam tshuam sai li sai tau -sectional hloov.
• ❌ Tsis txhob siv undercuts (tshwj tsis yog yuam ejection los yog sliders yog ua hauj lwm).
• ❌ Txo qhov siab - cov qauv kev pheej hmoo zoo li cov kab noj hniav sib sib zog nqus thiab cov core pins.
Ceev-Table Reference for Types Structural Parameters
Ib lub rooj tau piav qhia hauv qab no. Txij li thaum kuv tsis tuaj yeem ua cov duab ncaj qha, lub rooj tau piav qhia raws li cov lus piav qhia.]
Hauv kev tsim qauv, kev txiav txim siab yuav tsum tau ua ib txhij rau cov khoom shrinkage tus nqi (piv txwv li, ABS ~ 0.5%, PP ~ 1.5-2%), qhov cuam tshuam ntawm qhov chaw ntawm lub qhov rooj ntawm cov kab weld, thiab tsim validation los ntawm pwm khiav tsom. Ua ntej siv cov txheej txheem (ejector pins, ntsia hlau tus thawj coj, thiab lwm yam) tuaj yeem txo cov nqi pwm.
