Over molding hlau nplaum:
Feem ntau, cov hlau nplaum los yog cov hlau nplaum sib dhos yog muab tso rau hauv kab noj hniav ntawm cov pwm txhaj tshuaj, thiab cov khoom yas molten ntws nyob ib ncig ntawm nws tom qab kaw, npog tag nrho cov hlau nplaum los yog hlau nplaum sib dhos los yog npog lwm yam uas tsis yog cov hlau nplaum.
Magnets Over molding cov ntsiab lus:
1. Thaum lub sij hawm molding txheej txheem, qhov kub ntawm cov thermoplastics yog siab, yog li feem ntau unmagnetized ruaj khov hlau nplaum yog muab tso rau hauv pwm rau txhaj tshuaj molding kom tsis txhob sib nqus attenuation los ntawm kub txhaj molding ntawm magnetic li.
2. Thaum lub sij hawm txhaj tshuaj molding txheej txheem, cov yas kub-melt feem ntau exerts cuam tshuam thiab siab siab ntawm cov hlau nplaum. Yog li ntawd, kev txhim kho ntawm cov hlau nplaum hauv cov pwm thiab tsim cov pwm clamping kam rau ua yog qhov tseem ceeb heev, kom tsis txhob muaj cov hlau nplaum los ntawm kev tawg, overflowing kua nplaum (burrs) los yog tsis puv txhaj tshuaj.
Lub hom phiaj ntawm Over molding:
1. Rau cov twj tso kua mis, li qub, thiab lwm yam, uas yog nyob rau hauv kev sib cuag nrog cov kua los yog cov kuab tshuaj, kom tsis txhob muaj corrosion los yog tsis ua hauj lwm ntawm cov hlau nplaum, nws yog ib qho tsim nyog yuav tsum tau coated nto ntawm cov hlau nplaum los txhim kho ib puag ncig ntawm cov hlau nplaum.
2. Auto qhov chaw, cov cuab yeej hluav taws xob, cov keyboards, thiab lwm yam yog feem ntau qhib, muaj kev vibrations loj, thiab yuav tsum muaj zog tensile thiab compressive zog. Xaiv cov hlau nplaum rau kev txhaj tshuaj thib ob tuaj yeem txhim kho lub zog ntawm cov hlau nplaum thiab tiv thaiv cov hlau nplaum los ntawm kev tawg lossis tawg thaum ua haujlwm. Txiav tawm.
Overmolding hlau nplaum Khoom Xaiv:
Kev txhaj tshuaj molded yas yog feem ntau overmolded nrog txheej ntawm polymers xws li POM, Nylon, PPS, thiab lwm yam, siv polymer binders xws li Nylon 6, 11 thiab 12, thiab PPS (polyphenylene sulfide). Kev ntsuam xyuas Binder yog ib qho kev ua haujlwm tsis tu ncua hauv chav kuaj kev txhim kho los txhim kho lub cev lub zog, qhov siab tshaj plaws kev pab cuam qhov kub thiab txias, corrosion resistance, dimension stability nyob rau hauv lub xub ntiag ntawm dej thiab cov kuab tshuaj, thiab yooj yim ntawm kev ua ntawm tsawg ntiaj teb hlau nplaum cov ntaub ntawv.
Sib nqus hmoov muaj xws li ferrite thiab neodymium hlau boron (NdFeB) los yog samarium hlau nitrogen (SmFeN) magnetic hmoov. Ferrite thiab NdFeB thiab Samarium Iron Nitride (SmFeN) muaj nyob hauv ntau qib uas muab ntau yam khoom sib nqus.
Overmolding hlau nplaum Kub yam ntxwv
Qhov kev pabcuam siab tshaj plaws yog kev ua haujlwm ntawm cov hlau nplaum hlau nplaum thiab cov ntawv khi. Piv txwv li, ferrite hmoov nyob rau hauv nylon 6 los yog PPS tau soj ntsuam txaus siab ntawm 150 degree thiab 180 degree, feem. Nylon 12, ntawm qhov tod tes, melts saum 170 degree thiab tsis pom zoo siv rau saum 150 degree. Cov ntaub ntawv sib nqus, xws li qib siab tshaj plaws NdFeB, nrog kev sib koom ua ke ntawm 9,500 Oersted (760 kA / m), raug kev txom nyem tseem ceeb irreversible sib nqus poob siab tshaj 120 degree txawm hais tias siv binder. Qhov siab tshaj plaws kev khiav hauj lwm kub yog teev nyob rau hauv txhua yam khoom specification daim ntawv.
Overmolding hlau nplaum kam rau ua
Ib qho tseem ceeb ntawm kev txhaj tshuaj moulded hlau nplaum yog tias lawv haum rau qhov loj me rau hauv cov kab noj hniav kom meej meej yog li cov khoom tiav tau nruj kam rau ua. Qhov me me hloov pauv yog vim qhov shrinkage ntawm cov polymer thaum lub caij txias. Nws nyob ntawm lub thickness thiab cov duab ntawm ib feem. Yam kam rau ua yog ntxiv /-0.03 mm.
Cim npe nrov: Tuam Tshoj over-molded neodymium hlau nplaum manufacturers, lwm tus neeg, Hoobkas
