Cov tshuaj lom neeg thiab lub cev ntawm PA6 zoo li cov PA66, tiam sis, nws muaj qhov qis melting thiab ntau qhov kub thiab txias.Qhov kev ua hauj lwm thiab kev tiv thaiv tsis zoo dua PA66, tab sis kuj ntau hygroscopic.Vim ntau ntawm qhov zoo Cov yam ntxwv ntawm cov khoom yas yog raug hygroscopicity, yog li siv tag nrho tus account ntawm no thaum tsim koj cov khoom nrog PA6.Yuav xav kom txhim kho cov khoom siv dag zog ntawm PA6, feem ntau ntxiv ntau yam ntawm modifiers.Glass yog qhov feem ntau cov additive thiab qee zaum ntxiv rau hluavtaws rubbers los txhim kho tej yam ua haujlwm.Qhov tshuaj lom neeg thiab lub cev ntawm PA6 zoo li cov PA66, tiam sis, nws muaj qis dua melting thiab ntau qhov kub ntau.Yog feem cuam tshuam thiab tiv thaiv tsis zoo dua PA66, tab sis kuj tshaj hygroscopic.Vim ntau ntawm cov yam ntxwv zoo ntawm cov yas khoom yog raug hygroscopicity, yog li siv tag nrho tus account ntawm no thaum tsim koj cov khoom nrog PA6.Nyeem kom txhim kho rau kuv chanical thaj chaw ntawm PA6, feem ntau ntxiv ntau hom kev hloov kho. Cov iav yog qhov feem ntau cov additive thiab qee zaum ntxiv rau cov elastomers xws li EPDM thiab SBR los txhim kho tej yam tsis zoo.
Rau cov khoom uas tsis muaj cov additives, lub shrinkage ntawm PA6 yog nruab nrab ntawm 1% thiab 1.5% .Glass fiber ntau ntxiv yuav txo tau lub shrinkage mus rau 0.3% (tab sis perpendicular mus rau cov kev taw qhia kev khiav, thiab txawm me ntsis siab dua) .Txheej shrinkage thiab yas tsim tsim, phab ntsa thickness thiab lwm yam tsis ntawm ib tug muaj nuj nqi.
Txhim kho molding txheej txheem Kom qhuav: PA6 tuaj yeem nqus tau noo noo, yog li txoj kev ziab kom xyaw nrog kev xyuam xim.Yog hais tias cov khoom ntim rau hauv cov khoom tsis muaj dej, cov thawv yuav tsum raug kaw. Yog tias cov av qis tshaj li ntawm 0.2%, ziab hauv cua kub ntawm 80C rau 16 xuab moos los yog ntau dua.Yog hais tias cov khoom tau tso pa ntev dua 8 xuab moos, yuav tsum tau pom zoo, tsawg kawg yog 8 teev ntawm kev xau qhuav.
Melting temperature: 230 ~ 280C, rau kev kho kom zoo ntawm 250 ~ 280C.
Pwm kub: 80 ~ 90 C. Cov pwm kub pwm cuam tshuam txog qhov kev sib txawv ntawm crystallinity, degree ntawm crystallinity tseem cuam tshuam rau cov khoom siv dag zog ntawm cov khoom yas.
Rau qhov sib xyaw ua ke, degree ntawm crystallization, nws raug pom zoo tias cov pwm kub yog 80 ~ 90 C.
Rau cov yas thin-walled yas ntws ntev kuj tau pom zoo dua tuaj pwm kub. Ua rau cov pwm kub ua kom lub dag zog thiab qhov muaj zog ntawm cov yas, tab sis txo cov toughness.
Yog hais tias lub phab ntsa tuab ntau dua 3 hli, nws xav kom siv cov pwm kub tsawg 20 ~ 40C. Rau cov iav reinforcement pwm kub dua 80C.
Txhaj siab: feem ntau ntawm 750 ~ 1250bar (nyob ntawm cov ntaub ntawv thiab khoom tsim).
Txhaj tshuaj ceev: kev kub ceev (me ntsis qis li hom khoom siv).
Runners thiab Rooj vag: PA6 solidification lub sij hawm luv heev, yog li ntawd lub qhov rooj yog qhov tseem ceeb heev.
Daim ntaub ntawv Vim hais tias ntawm kev ua tau zoo thiab qhov rigidity ntawm tus tswvcuab tus tswvcuab muaj dav siv:
Vim zoo ntawm kev coj ua, kuj siv los ua kev tsim tawm ntawm cov kabmob.
Cov lus nug: eeb burrles, lub cim kos rau sab nraud, qhov chaw sib tshuam, kev sib tsoo thiab cov kab dub, qhov khoob khiab, thiab cov pos huab thaj, xim thiab cov khoom tsis zoo, hlawv dub, tsis muaj zog, tawg dawb, xim tsis sib haum xeeb, warpage, ploj mould tso tawm, pwm loj heev corrosion.
