Thaum ib pab pawg khoom specs asilicone keypadrau cov chaw taws teeb tswj, cov cuab yeej kho mob, lossis cov khoom siv tes tuav, cov duab kos feem ntau teev cov xim, lub logo, thiab cov txheej txheem tseem ceeb - tab sis yuav luag tsis muaj peb tus lej uas txiav txim siab seb lub keypad puas pheej yig, tsis zoo, lossis txoj cai. Cov lej ntawd yogNtug A hardness, key taug kev, thiabconductive ntsiav tshuaj. Phau ntawv qhia no taug kev los ntawm txhua txoj hauv kev uas tus kws tshaj lij cov khoom lag luam xav tau spec nws, thiab taw qhia qhov chaw pheej yig silicone keypads feem ntau txiav cov fab.
1. Shore A hardness: ib leeg tshaj plaws -xav tus lej
Shore A yog durometer nplai rau cov roj hmab muag muag. Ib tug neeg siv tej thaj chaw deb tswj tus yuam sij yogNtug A 40–50. Ib qho kev kho mob infusion twj tso kua mis yogNtug A 50–60, vim tias nws yuav tsum tiv thaiv kev sib tsoo. Ib qho hnyav - kev lag luam keypad raug rau cov hnab looj tes tuaj yeem khiavNtug A 65–70. Txhua yam hauv qab Shore A 30 zoo li jelly; txhua yam saum 75 zoo li cov yas tawv thiab poob qhov muag muag -kov xav tias cov neeg yuav khoom xav tau los ntawm silicone.
Cov neeg yuav khoom yuam kev: lawv nug "mos" yam tsis muaj tus lej. Tus neeg muag khoom lub tswv yim ntawm mos yog Shore A 40; koj li yuav yog Shore A 30. Spec lub Shore A ntawm daim duab, nrog rau ± 5 kam rau ua. Pebkho mob silicone keykab yog molded ntawm ntug dej hiav txwv A 55 ± 5 vim li no.
2. Qhov tseem ceeb mus txawv tebchaws thiab snap piv: qhov sib sib zog nqus khawm mus li cas
Kev mus ncig yog qhov kev ncua deb ntawm tus yuam sij txav ntawm so mus rau hauv qab - tawm. Lub qhov dej - tsimchaw taws teeb tswj silicone keymuaj 1.0-1.5mm ntawm kev mus ncig. Hauv qab 0.8mm, tus yuam sij xav tias loog; saum 2.0mm, nws zoo li pheej yig thiab qeeb. Qhov "nias" xav los ntawm ib qhoplaub- ceg hlau domemuab tso rau hauv qab ntawm tus yuam sij, los yog ib tug conductive carbon ntsiav tshuaj nrog molded snap profile.
Rau siab -cov khoom siv ntim khoom, cov pa roj carbon- txoj kev pheej yig dua. Rau kev kho mob thiab kev lag luam daim ntawv thov qhov kev ntseeg siab tseem ceeb tshaj 0.02 USD rau ib qho tseem ceeb, peb pom zoo kom embed qhov tiagstainless hlau snap domesab hauv silicone key. Lub dome muab qhov sib npaug F1 hla ntau lab ntawm kev ua haujlwm; cov pa roj carbon ntsiav tshuaj degrades maj mam thiab nws actuation quab yuam drifts.
3. Conductive ntsiav tshuaj: carbon vs kub vs nickel
Cov ntsiav tshuaj conductive yog hauv qab ntawm tus yuam sij uas kov lub PCB ncoo. Nws yuav tsum yog mos txaus kom kis tau ntawm lub ncoo, conductive txaus los nqa lub teeb liab, thiab hnav - tiv taus txaus kom lub neej nyob ntev. Peb txoj kev xaiv dominate:
- Cov tshuaj carbon(dub, 50–100Ω): pheej yig tshaj, zoo rau cov neeg siv khoom siv. Kev tiv thaiv kev tiv thaiv drifts upwards dhau sijhawm.
- Kub- cov tshuaj plated(kub-xim,<30Ω): stable contact, used for automotive and medical. Adds roughly 0.05–0.10 USD per key.
- Nickel{0}}cov tshuaj graphite: mid-tier, siv raucov khoom siv hauv tsev keypadsqhov twg me ntsis drift yog txais.
Yog tias koj lub PCB siv kub -plated pads, phim cov ntsiav tshuaj plating kom tsis txhob galvanic corrosion. Cov pa roj carbon- ntawm- kub zoo; carbon- ntawm- tin tsis yog.
4. Nto tiav: laser-etched vs ncoo- luam tawm vs domed
Cov lus dab neeg ntawm cov yuam sij silicone hnav tawm - uas yog # 1 vim li cas cov neeg siv khoom yws. Pad luam ntawv (tus number case rau saum) zoo li pheej yig tom qab ib xyoos. Laser etching (qhov saum npoo yog charred mus rau ib tug maub ntxoov ntxoo) kav lub neej ntawm ib feem, tab sis tsuas yog ua hauj lwm rau tsaus silicone.Doming(lub tsho ntshiab epoxy tshaj cov lus dab neeg) yog qhov kev xaiv zoo tshaj: nws muaj sia nyob 10, 000+ cawv so, uas tseem ceeb rau cov khoom siv kho mob uas tau tshuaj tua kab mob ntawm cov neeg mob.
Rau ibkho mob keypad, spec ua. Rau lub TV tej thaj chaw deb, laser etch los yog pad print. Rau kev lag luam keypad siv nrog hnab looj tes, laser etch ntawm lub siab - sib piv ob- tus yuam sij tua.
5. Cov lus nug kev koom ua ke: silicone tseem ceeb ib leeg vs dome ntawv array vs membrane hloov
Cov neeg yuav khoom feem ntau sib piv peb qhov zoo li lawv yog lwm txoj hauv kev. Lawv tsis yog:
- Silicone tseem ceeb ib leeg(cov khoom siv roj hmab molded): koj muab cov PCB thiab kev sib cuag. Pheej yig tshaj rau ib feem, tab sis koj ua lub rooj sib txoos.
- Silicone tseem ceeb +PET dome daim ntawv array: peb laminate daim ntawv dome rau sab nraum qab ntawm tus yuam sij, koj tsuas yog solder rau koj lub PCB. Ib feem ntxiv, ntau huv si xav.
- Tiav lawmmembrane hloov: Peb tsim tag nrho lub rooj sib txoos nrog rau kev sib tshooj, txheej dome, lub spacer, thiab tus Tsov tus tw. Tus nqi siab tshaj, qis tshaj kev koom ua ke pheej hmoo.
Rau ib qho khoom tshiab nrog lub sijhawm nruj, txoj kev hloov pauv ntawm daim nyias nyias feem ntau yog txoj cai hu. Rau tus nqi- nqes ntawm cov khoom uas twb muaj lawm, silicone-key-plus-dome- daim ntawv txoj kev txuag tau tshaj plaws.
6. Tolerances buyers tsis nco qab spec
Peb qhov ua siab ntev me me ua rau muaj kev tsis txaus siab hauv cheeb tsam:
- Qhov siab qhov siab kam rau ua ± 0.15mm. Qhov sib txawv ntawm 0.2 hli thoob plaws 12-qhov tseem ceeb array zoo li pom tsis sib xws hauv cov pwm.
- Xim kam rau ua ΔE <1.5. Silicone yellows lub sijhawm; Yog tias koj phim cov xim ntawm hnub 0 nrog ΔE=2, nws yuav zoo li tsis sib haum ntawm lub hli 6.
- Flashing <0.05 hli. Tshaj flashing nyob ib ncig ntawm ntug tseem ceeb pom tau tias ntse hauv qab tus ntiv tes thiab yog # 1 vim li cas keypads tau rov qab los ntawm kev tshuaj xyuas tuaj.
SUNAURA Machinery pwmsilicone keypads, embedshlau domes, thiab laminatesdome daim ntawv arraysnyob rau hauv tib Qingdao cog - uas txhais tau hais tias cov kam rau siab saum toj no yog tswj nyob rau hauv ib lub Hoobkas, tsis sib tham nyob rau hauv peb. Yog tias koj tab tom tsim lub chaw taws teeb tshiab, kev kho mob tes, lossis kev tswj hwm kev lag luam thiab xav tau lub tswv yim thib ob ntawm koj qhov tseem ceeb spec,xa peb daim duab. Peb yuav kos cov duab kos nrog peb tus lej peb yuav hloov, ua ntej koj cog lus rau kev siv cuab yeej.
