Simbisa kuoma
Nylon ndeye hylgoscopic, kana yakafumurwa nemhepo kwenguva yakareba, ichatora unyoro mumudenga. Pakupisa pamusoro pekunyungudika pfungwa (anenge 254 ° C), mamorekuru emvura anoita nemakemikari ne nylon. Iyi yemakemikari maitiro, inonzi hydrolysis kana kucheneswa, oxididay iyo nylon uye inodonhedza. Kurema kwemanyorerwo uye kuomarara kweresini kwakashaiwa simba, uye chimiro chakawedzerwa. Nyorova yakabatanidzwa nepurasitiki uye gasi rakaburitswa kunze kwenhengo dzechibatanidzwa, chiedza chakatsvuka, chirairo, mabhuru, mictures yekunyungudika haigone kuumbwa kana kuumbwa mushure mekunge aumbe simba rakadzikira zvakanyanya. Pakupedzisira, nylon yakajeka neiyi hydrolysis is is is is is is ishandiswe zvakare kunyangwe yakaomeswa.
Nylon zvinyorwa usati wakura kuomarara kushanda zvinofanirwa kutorwa zvakadzama, kuti uome kusvika kune izvo zvinodiwa zvevakapedzerwa, kazhinji hazvipfuure 0.2 Zviri nyore, zvikamu hazvizounza dambudziko rakawanda pamhando.
Nylon yakanga yave nani kushandisa vacuum kuoma, nekuti iyo tembiricha mamiriro ekumanikidza kudzvinyirira yakakwira, iyo midziyo yekusajairwa ichiripo mumhepo uye mukana wekubvisa oxidation, kunyanyisa oxidation kuchaitawo zvakapesana, zvakadaro kuti kugadzirwa kweBrittle.
Mukushaikwa kweVafuum kuomesa michina, kuomesa moyo kunogona kungoshandiswa chete, kunyangwe maitiro ari murombo. Kune akawanda akasiyana mazwi ekupisa mamiriro ekuomesa mamiriro, asi pano vashoma. Yekutanga ndeye60 ℃ ℃ ℃ ℃ ℃ ℃, 70 ℃, zvinhu layer gobvu 20mm, bake 24h ~ 30th; Yechipiri haisi kupfuura 10h kana kuoma pazasi 90 ℃; Yechitatu iri pa93 China ndechekuwedzera tembiricha kusvika kune anopfuura zana ℃, kana kunyange 150 ℃, nekuda kwekufunga kweNylon kuratidzwa kwemhepo kwenguva yakareba kana kushanda zvisina kunaka kwemidziyo yekuomesa; Cheshanu chiri jekiseni kuumba michina inopisa mweya hot holpper, tembiricha yemhepo inopisa mukati meiyo hupuru inosimudzwa isina kuderera kusvika zana Ipapo mweya unopisa unobviswa pamusoro peiyo hopper.
Kana iyo plastiki yakaoma yaburitswa mumhepo, ichakurumidza kutora mvura mumhepo uye kurasikirwa nekuoma maitiro. Kunyangwe mumuchina wakavharwa hopper, nguva yekuchengetedza haifanire kunge yakareba, kazhinji haisi kupfuura 1 awa mumazuva ekunaya, mazuva ezuva mashoma mashoma kusvika maawa matatu.
Kutonga mbiya yekupisa
Nylon yakanyungudutsa tembiricha yakakwira, asi kana ichisvika padanho rekunyungudika, viscosity yayo yakaderera pane generaltics yakadai sePolystyrene, saka kugadzira fluidity haisi dambudziko. Mukuwedzera, nekuda kweiyo rateological zvivakwa Nylon, iyo yekufungidzira inoyerera apo chiyero chengarava chinowedzera, uye yekunyungudika tembiricha yakamanikana, pakati pe3
Asi nylon munzvimbo yekunyungudika apo kugadzikana kwekunyungudika, kugadzirisa zvinhu zvakakwirira kwazvo zvine mwero mwero nguva refu yekudziya kunogona kutungamira kuPolymer degration, kuitira kuti zvigadzirwa zvive zvichiratidzika kubhuroka, simba radzikira. Naizvozvo, tembiricha yechikamu chimwe nechimwe chebhari inofanira kudzorwa zvakanyatso kudzorwa, zvekuti pellet mune yakanyanya kunyungudika tembiricha, mamiriro ekupisa ekupisa zvine musoro sezvazvinogona, imwe yunifomu, kudzivirira kunyungudika kwakashata uye nekuvhundutsa munyama. Kana iri iyo kuumbwa kwese, tembiricha yemba haifanire kupfuura mazana matatu
Zvakavandudzwa zvigadzirwa zvemidziyo
Yekutanga ndiyo mamiriro ari mubhari, kunyangwe paine huwandu hukuru hwekutarisa zvinhu, asi kudzoreredza zvinhu zvakaumbwa mukaka-screw groove uye madziro emukati wemba anowedzerawo Nekuda kweiyo hombe fluidity, iyo isingadzoreki inoshanda jekiseni jekiseni uye huwandu hwekupa, asi dzimwe nguva zvinotadzisa kufambira mberi kwakajeka kwekudya, zvekuti screw haigoni kutsvedza kumashure. Naizvozvo, chiuno cheki chinofanira kuiswa pamberi pebhari kudzivirira kudzosera kumashure. Asi mushure mekuisa cheki chirahwe, tembiricha yemidziyo inofanira kuwedzerwa negumi
Yechipiri izita remuchaita, iro ripfungaira rapedzwa, iyo screw munguva yekumberi pasi pekuseri pasi pekuseri inogona kuyerera kubva muhuswa, ndiko kuti, iyo inonzi "Spartation phenomenon". Kana izvo zvinyorwa zvacho zvichizotyiswa mumativi zvichaita kuti zvikamu zvive nemhando dzekutonhora kana kuti dzakaoma kuzadza, kana ruzha rwepamhepo isati yasvika, uye nehupfumi hwakawedzera, hupfumi hachiitirwe. Iyo inzira inoshanda yekudzora tembiricha yekuisa tembiricha nekumisikidza yakadzama yekudziya yekudziya mhete, asi iyo nzira yakakosha ndeyekuchinja ruzha neyechirimo-gomba vheji. Ehezve, zvinyorwa zvechirimo zvinoshandiswa nerudzi urwu rwepazasi runofanira kunge uchiramba kudziya kwakanyanya, zvikasadaro zvicharasikirwa nemhedzisiro yavo yekudzokorora kudzvanywa kwekushisa kwakanyanya.
Ita shuwa die flauust uye kutonga kunoita tembiricha
Nekuda kweiyo yakanyanya kunyungudika yekunyungudika yeNylon yakakwira, iyo yekunyungudika yakakwira mold inogona kusimbiswa chero nguva nekuda kwekutonhora kuwira pasi pekunyungudika, kudzivirira kupedzwa kwekuzadza kweMold , saka jekiseni rakakwira rinofanira kushandiswa, kunyanya kune zvikamu zvakatetepa kana zvikamu zvekuregerera kureba. Mukuwedzera, kukwirisa kwakakwirira kuchizungudza kunounzawo dambudziko rekupfekedza cavity, NYLON MOLD dzinofanira kuve nehuwandu hwakakwana hwekupenya.
Nylon ine yakawanda yakakwirira yekufa tembiricha inodiwa kupfuura general thermoplastics. Kazhinji kutaura, tembiricha yakakwira inovhuvhuta inofarira kuyerera. Izvo zvakakosha kwazvo kune zvikamu zvakaoma. Dambudziko nderekuti kusungunuka kutonhora kutonhora mushure mekuzadza iyo cavity ine kukosha kwakanyanya pane chimiro uye zvivakwa zvezvimedu zvimedu. Kunyanya kunyepedzera muCrystallization yayo, kana iyo mukudziya kwakanyanya muAmorphous State muCavity muCavity muCavity muTravity Kana zvikamu zvakatetepa nehuremu hwakanyanya, kuturukirwa kwakanaka uye kuoma zvinodiwa, iyo molity tembiricha inofanirwa kuve yakaderera kuti ideredze degree re crystallization. Kana madziro akakura nehuremu hwakakwirira, zvakanaka kupfeka kurwisa uye kushomeka kudiki mukushandiswa kunodiwa, iyo molity tembiricha inofanira kunge yakakwirira yekuwedzera iyo degree rekristaro. NYLON YAKADZIDZWA DZESVONDO DZESVONDO DZINOGONESWA, izvi nekuti ruva rayo rinodzikira rakakura, kana zvichichinja kubva kuyakagadzirwa nyika Chete apo iyo tembiricha yekudziya yakanyatsogadziriswa inogona kukura kwenhengo dzive dzakasimba.
Iyo tembiricha yekudzora renji yeNylon MolD ndeye 20 ℃ ~ 90 ℃. Izvo zvakanaka kuti uve nekutonhora (senge svutugadzike yemvura) uye kupisa (senge plug-muhomwe yekupisa emagetsi) mudziyo.
Annealing uye Humidization
Kuti uwane kushandiswa kwekushisa kwakakwira kupfuura 80 ℃ kana zvakanyanyisa kukosha zvinodiwa zvezvikamu, mushure mekuumbwa kunofanirwa kuwedzerwa mumafuta kana paraffin. Iyo yekudziya tembiricha inofanirwa kunge iri 10 × ℃ ℃ ℃ ℃ ℃ ℃ Mushure mekunze, inofanira kutonhorera zvishoma nezvishoma. Mushure mekurapa uye kupisa kurapwa, yakakura nylon crystal inogona kuwanikwa, uye kuomarara kwave nani. Zvikamu zvekristerallasized, shanduko yemahara idiki, kwete deformation uye kupaza. Izvo zvikamu zvakagadziriswa nekukasira kutonhora nzira ine yakaderera crystallinity, chidiki chekristuru, chakanyanya kuoma uye pachena.
Kuwedzera mumiririri weNylon, jekiseni kuumbwa kunogona kuburitsa hombe crystallinity crystal, inogona kupfupisa jekiseni rjekiseni, kudengenyeka kwenhengo dzezvikamu zvakavandudzwa.
Shanduko mune ambient kunyorovedzera kunogona kuchinja saizi yezvinonyura zvidimbu. Nylon pachayo shrinkage chiyero yakakwira, kuitira kuti urambe wakanyanya kugadzikana, unogona kushandisa mvura kana mhinduro yemvura yekugadzirisa kunyorova. Nzira yacho ndeyekunyudza zvikamu mumvura inovira kana potassium acetate mhinduro uye mvura ndeye 1.25, nguva yekubika inoti, inguva yekukwira madziro ezvikamu, 1.5mm 2h , 3mm 8h, 6mm 16h. Kurapa kwekunyunyuta kunogona kuvandudza crystal chimiro chepurasitiki, kuvandudza kuomarara kwezvikamu, uye kugadzirisa kugovera kwekuparadzirwa kwemukati, uye mhedzisiro iri nani pane kurapwa kwamhepo.
Tumira nguva: 03-11-22