Ukuhlaziywa kwenqubo yokubumba umjovo we-PA66

1. Ukomiswa kwenayiloni PA66

Ukomisa nge-vacuum:izinga lokushisa ℃ 95-105 isikhathi 6-8 amahora

Ukomiswa komoya oshisayo:izinga lokushisa ℃ 90-100 isikhathi mayelana 4 amahora.

I-Crystallinity:Ngaphandle kwenayiloni esobala, inayiloni eminingi ayi-crystalline polymers ane-crystallinity ephezulu. Amandla aqinile, ukumelana nokugqokwa, ubulukhuni, ukuthambisa kanye nezinye izakhiwo zemikhiqizo ziyathuthukiswa, futhi i-coefficient yokwandisa ukushisa nokumuncwa kwamanzi kuvame ukuncipha, kodwa akukhuthazi ukubonakala obala kanye nokumelana nomthelela. Izinga lokushisa lesikhunta linethonya elikhulu ku-crystallization. Ukuphakama kwezinga lokushisa kwesikhunta, kuyanda ukucwebezela. Ukwehla kwezinga lokushisa kwesikhunta, i-crystallinity iyancipha.

Ukuncipha:Ngokufanayo namanye amapulasitiki acwebile, inhlaka yenayiloni inenkinga enkulu yokuncipha. Ngokuvamile, ukuncipha kwenayiloni kuhlobene kakhulu ne-crystallization. Uma umkhiqizo unezinga eliphezulu le-crystallinity, ukuncipha komkhiqizo nakho kuzokwanda. Ukwehlisa izinga lokushisa kwesikhunta, ukwandisa ingcindezi yomjovo, nokunciphisa izinga lokushisa ngesikhathi sokubumba kuzonciphisa ukuncipha, kodwa ukucindezeleka kwangaphakathi komkhiqizo kuzokhula futhi kuyoba lula ukukhubazeka. Ukuncipha kwe-PA66 kungu-1.5-2%
Imishini yokubumba: Lapho ubumba inayiloni, naka ukuvimbela “isenzakalo sokuphonsa sembobo”, ukuze imibhobho yokuzikhiya ivame ukusetshenziselwa ukucubungula izinto zenayiloni.

2. Imikhiqizo kanye nesikhunta

• 1. Ubukhulu bodonga lomkhiqizo Isilinganiso sobude bokugeleza benayiloni siphakathi kuka-150-200. Ubukhulu bodonga bemikhiqizo enayiloni abukho ngaphansi kuka-0.8mm futhi ngokuvamile bukhethwa phakathi kuka-1-3.2mm. Ngaphezu kwalokho, ukuncipha komkhiqizo kuhlobene nokuqina kodonga lomkhiqizo. Ukuqina kodonga, kukhulu ukushwabana.

• 2. I-Exhaust Inani elichichimayo lenhlaka yenayiloni licishe libe ngu-0.03mm, ngakho imbobo yokukhipha umoya kufanele ilawulwe ibe ngaphansi kuka-0.025.

• 3. Izinga lokushisa lesikhunta: Isikhunta esinezindonga ezincane okunzima ukusibumba noma esidinga ukucwebezela okuphezulu siyashisisa futhi siyalawuleka. Amanzi abandayo ngokuvamile asetshenziselwa ukulawula izinga lokushisa uma umkhiqizo udinga izinga elithile lokuguquguquka.

3. Inqubo yokubumba inayiloni
Izinga lokushisa lomgqomo
Ngenxa yokuthi inayiloni iyi-polymer ecwebezelayo, inephuzu elibalulekile lokuncibilika. Izinga lokushisa lomphongolo elikhethelwe inhlaka yenayiloni ngesikhathi sokubunjwa komjovo lihlobene nokusebenza kwe-resin ngokwayo, okokusebenza, kanye nokuma komkhiqizo. Inayiloni 66 ingu-260°C. Ngenxa yokungaqini kahle kokushisa kwenayiloni, akufanelekile ukuhlala emgqonyeni ekushiseni okuphezulu isikhathi eside ukugwema ukuguquguquka nokuphuzi kwezinto. Ngesikhathi esifanayo, ngenxa ye-fluidity enhle yenayiloni, igeleza ngokushesha ngemva kokuba izinga lokushisa lidlule indawo yalo yokuncibilika.
Ingcindezi yomjovo
I-viscosity yokuncibilika kwenayiloni iphansi futhi uketshezi luhle, kodwa isivinini sokufingqa siyashesha. Kulula ukuba nezinkinga ezinganele emikhiqizweni enezimo eziyinkimbinkimbi nezindonga ezincane, ngakho-ke ukucindezela komjovo okuphezulu kusadingeka.
Ngokuvamile, uma ingcindezi iphezulu kakhulu, umkhiqizo uzoba nezinkinga zokuchichima; uma ingcindezi iphansi kakhulu, umkhiqizo uzoba neziphambeko ezinjengama-ripples, amabhamuza, ama-sintering marks asobala noma imikhiqizo enganele. Ingcindezi yomjovo wezinhlobo eziningi zenayiloni aweqi ku-120MPA. Ngokuvamile, ikhethwa phakathi kwebanga lika-60-100MPA ukuze ihlangabezane nezidingo zemikhiqizo eminingi. Uma nje umkhiqizo ungenakho ukukhubazeka okufana namabhamuza nama-dent, ngokuvamile akufiseleki ukusebenzisa ingcindezi yokubamba ephakeme ukuze ugweme ukukhulisa ingcindezi yangaphakathi yomkhiqizo. Ijubane lomjovo Ngenayiloni, ijubane lomjovo liyashesha, elingavimbela ama-ripples kanye nokugcwaliswa kwesikhunta okunganele okubangelwa isivinini sokupholisa esisheshayo. Ijubane lomjovo osheshayo alinawo umthelela obalulekile ekusebenzeni komkhiqizo.

Izinga lokushisa lesikhunta
Izinga lokushisa lesikhunta linethonya elithile ekucwebezeleni nasekuncipheni kokubumba. Izinga lokushisa eliphakeme lesikhunta linobucwebe obuphezulu, ukwanda kokumelana nokugqokwa, ubulukhuni, i-elastic modulus, ukuncipha kokumuncwa kwamanzi, nokuncipha kokubumba komkhiqizo; izinga lokushisa eliphansi lesikhunta linobucwebe obuphansi, ukuqina okuhle, nobude obuphakeme.
Amashabhu okubumba umjovo akhiqiza ama-sprues kanye nabagijimi nsuku zonke, ngakho-ke singamane sisebenzise kabusha amasprue kanye nezigijimi ezikhiqizwe ngemishini yokubumba ngomjovo kalula nangempumelelo?
Kushiye kanjaloI-ZAOGE ukuvikelwa kwemvelo kanye nedivayisi esekela ukonga izinto (i-plastic crusher)imishini yokubumba umjovo.
Iwuhlelo lwesikhathi sangempela olushisiwe olugayiwe nolwenziwa kabusha olwakhelwe ngokuqondile ukuchoboza ama-sprue nezigebengu ezisezingeni eliphezulu.
Izinhlayiya ezichotshoziwe ezihlanzekile nezomile zibuyiselwa ngokushesha kulayini wokukhiqiza ukuze zikhiqize ngokushesha imikhiqizo yezingxenye ezibunjiwe ze-Injection.
Izinhlayiya ezihlanzekile nezomile ezichotshoziwe ziguqulwa zibe izinto zokusetshenziswa zekhwalithi ephezulu ukuze zisetshenziswe esikhundleni sokwehliswa.
Igcina impahla kanye nemali futhi ivumela ukulawulwa kwentengo okungcono.

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