Ⅰ.Inqubo Yokubumba yeNylon 6
Izakhiwo ze-1.Chical nezomzimba
Izakhiwo zamakhemikhali nezingokomzimba ze-PA6 ziyafana nalezo ze-PA66; Kodwa-ke, inendawo ephansi yokuncibilika kanye nobubanzi bezinga lokushisa elibanzi.Its Ukumelana nomthelela kanye ne-solubility kungcono kunalokho kwe-PA66, kodwa futhi kuyinhlahlathi eyengeziwe. Njengoba izici eziningi zekhwalithi yezingxenye zepulasitiki zithintwa yi-hygroscopicity, lokhu kufanele kuthathwe ngokugcwele lapho kuklanywa imikhiqizo esebenzisa i-PA6.
Ukuze uthuthukise izakhiwo zemishini ze-PA6, kuvame ukungezwa kaningi. Ingilazi isengezo esivame kakhulu, futhi kwesinye isikhathi sokwenziwa, njenge-EPDM ne-SBR, kuyengezwa ukwenza ngcono ukumelana nomthelela.
Ngemikhiqizo ngaphandle kwezengezo, i-PA6 Shrinkage iphakathi kuka-1% no-1.5%. Ukungezwa kwezithasiselo ze-fiberglass kunciphisa inani le-shrinkage liye ku-0.3% (kepha liphakeme kancane ngenhla kwenqubo). Izinga lokubuyiselwa kwemihlangano yokubumba lithinteka ikakhulukazi nge-crystaltaltity kanye nenhlamba ye-hygroscopicity yezinto zokwakha. Izinga langempela le-shrinkage lingumsebenzi wokwakheka kweplastiki, ubukhulu odongeni namanye amapharamitha enqubo.
2.Imibandela Yenqubo Yomjovo isikhunta
. Uma okuqukethwe kuhlinzekwa ngokupakishwa kwamanzi, isitsha kufanele sigcinwe so airtight. Uma umswakama mkhulu kune-0,2%, kunconywa ukomisa emoyeni oshisayo ngaphezulu kwama-80 ° C. Uma okuqukethwe kuvezwe emoyeni amahora angaphezu kuka-8, kunconywa ukuthi kuvulwe ukuyomisa emoyeni oshisayo ngo-105 ℃ isikhathi esingaphezu kwamahora ayi-8.
(2) Ukushisa okuncibilikayo: 230 ~ 280 ℃, 250 ~ 280 ℃ ngezinhlobo eziqinisiwe.
(3) Izinga lokushisa elibumba: 80 ~ 90 ℃. Ukushisa okulindile kuthinta kakhulu i-crystaltaltity, yona ethinta izici zemishini zezingxenye zepulasitiki. I-Crystallity ibaluleke kakhulu ezingxenyeni ezakhiwo, ngakho-ke izinga lokushisa elinconyiwe elinconyiwe lingu-80 ~ 90 ℃.
Ezingxenyeni zepulasitiki ezinciphile ezihlangene nenqubo ende, kuyanconywa futhi ukufaka izinga lokushisa eliphakeme. Ukwandisa izinga lokushisa okubumba kungathuthukisa amandla nokuqina kwezingxenye zepulasitiki, kepha kunciphisa ubulukhuni. Uma ubukhulu bodonga bukhulu kune-3mm, kunconywa ukusebenzisa isikhunta esiphansi samazinga angama-20 kuye kwangama-40 ℃. Ukuze izilinganiso zokulwa ze-glass fiber eziqinisiwe kufanele zibe zinkulu kune-80 ℃.
(4) Ukucindezela komjovo: Ngokuvamile u-750 kuya ku-1250bar (kuya ngomklamo womkhiqizo kanye nomkhiqizo).
(5) Isivinini somlingo: Ijubane eliphakeme (liphansi kancane ngezinto ezithuthukisiwe).
(6) Runner nesango: Indawo yesango ibaluleke kakhulu ngenxa yesikhathi esifushane sokuqina kwe-PA6. I-Gate Alterture akufanele ibe ngaphansi kuka-0.5 * t (lapho t ubukhulu bezingxenye zepulasitiki).
Uma kusetshenziswa umgijimi oshisayo, usayizi wesango kufanele ube mncane kunokuba umgijimi ojwayelekile usetshenziswa, njengoba umgijimi oshisayo angasiza ukuvikela ukuqina kwangaphambi kokuqukethwe. Uma kusetshenziswa isango elingaphansi, ububanzi besango buzoba ngu-0.75mm.
Imikhiqizo enikeziwe ye-PA6
Inqubo yokuhlanganisa yokujova ye--.ny-Nylon 66
1.Ukomiswa kwe-nylon 66
(1) Ukusoma kwe-vacuum: izinga lokushisa 95-105 amahora angama-6-8
(2) Ukumiswa komoya okushisayo: izinga lokushisa 90-100 ℃ cishe amahora ama-4
. Izinga lokushisa le-Main linethonya elikhulu ekuthuthukisweni kwe-crystallization, izinga lokushisa eliphakeme lokushisa eliphakeme kakhulu, izinga lokushisa eliphansi lokushisa eliphansi.
. Izinga le-shrinkage le-PA66 lingu-1.5-2%.
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2.products kanye isikhunta
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I-Nylon 66 Umjovo Emikhiqizo Emisiwe
Inqubo ye-3.Frming ye-nylon 66
. I-Nylon 66 ingu-260 ℃. Ngenxa yokuqina kwe-nylon empofu, akufanelekile ukuhlala kusilinda ngokushisa okuphezulu isikhathi eside, ukuze ungabangeli ukuguquguquka okubonakalayo kanye nokuphuzi, ngasikhathi sinye ngenxa yephuzu lawo lokuncibilika ngemuva kokugeleza kwayo ngokushesha.
. Kulula ukuba nezinkinga ezinganele kwimikhiqizo enesimo esiyinkimbinkimbi nobukhulu obuncane odongeni, ngakho-ke isadinga ingcindezi ephakeme yomjovo. Imvamisa ingcindezi ephezulu kakhulu, imikhiqizo izochichima izinkinga; Uma ingcindezi iphansi kakhulu, imikhiqizo izokhiqiza ama-ripples, ama-bubble, amamaki e-fusion asobala noma imikhiqizo enganele nezinye izinkinga. Ingcindezi yomjovo yezinhlobonhlobo ze-nylon ayikho ngaphezu kwe-120MPA, futhi okukhethiwe ngokuvamile kufinyelela ebangeni lama-60-100MPA ukuze ahlangabezane nezidingo zemikhiqizo eminingi. Uma nje imikhiqizo ingaveli ama-bubble, ama-dents nezinye iziphambeko, ngokuvamile akulindelekile ukusebenzisa ukugcinwa kwengcindezi ephezulu. Ukuze kungandisi ukucindezela kwangaphakathi komkhiqizo.
. Ijubane lokujova okusheshayo alinamphumela obalulekile kwizakhiwo zomkhiqizo.
. Izinga lokushisa eliphakeme eliphakeme line-crystaltaltity ephezulu, ukugqokwa kwento, ukuqina, ukunyuswa kwe-elastic modulus, ukwehla kwamanzi, nokuncipha kokubumba kwemikhiqizo kuyanda; Izinga lokushisa eliphansi eliphansi, i-crystallity ephansi, ubulukhuni obuhle, ukunwebeka okuphezulu.
4.I-Nylon 66 Ukwakha Amapharamitha Enqubo
Ukushisa kwangemuva komgqomo kungu-240-285 ℃, izinga lokushisa eliphakathi lingu-260-300 ℃, futhi izinga lokushisa langaphambili lingu-260-300 ℃. I-nozzle lokushisa lingu-260-280 ℃, futhi izinga lokushisa le-Main lingu-20-90 ℃. Ingcindezi yomjovo ingu-60-200MPA
Ukusetshenziswa kwe-ejenti yokukhishwa: Ukusetshenziswa kwenani elincane le-ejenti yokukhishwa kwesinye isikhathi kuba nomphumela wokwenza ngcono kanye nokuqeda ama-bubble nezinye iziphambeko. I-ejenti yokukhishwa kwemikhiqizo ye-nylon ingakhetha i-zinc stearate kanye namafutha amhlophe, njll., Nayo ingahlanganiswa ekusetshenzisweni kokunamathisela, ukusetshenziswa kufanele kube yinhle futhi kungabingeli amaphutha emikhiqizo. Ekuvaleni ukuze ukhiphe isikulufa, ukuvikela ukukhiqizwa okulandelayo, isikulufa esiphukile.
Inqubo yokuhlanganisa yokuhlanganisa ye- ⅲ..PA12
1.PA12 Umjovo Wenqubo Yokubumba
(1) Ukwelashwa Komiswa: Umswakama kufanele uqinisekwe ngaphansi kwe-0,1% ngaphambi kokucutshungulwa. Uma okuqukethwe kuvezwa ukugcinwa komoya, kunconyelwa ukomisa ngomoya oshisayo oshisayo ngamahora ama-4 kuye kwangama-5. Uma okuqukethwe kugcinwa esitsheni somoya, kungasetshenziswa ngqo ngemuva kwamahora ama-3 wokulingana lokushisa.
(2) Ukushisa okuncibilikayo: 240 ~ 300 ℃; Musa ukwedlula ama-310 ℃ wezinto ezisetshenziswayo ezinezici ezijwayelekile, futhi ungangeqi ama-270 ℃ wezinto zokwakha ezinezici ze-flame retardant.
(3) Izinga lokushisa le-Main Ukunyuka kwamazinga okushisa kuzokhulisa i-crystaltaltity yezinto ezibonakalayo. Kubalulekile ukuthi i-PA12 ilawule ngokunembile lokushisa lokubumba.
(4) Ukucindezela komjovo: Kufika ku-1000bar (ingcindezi ephansi yokubamba kanye nokushisa okuphezulu okuphezulu kuyanconywa).
(5) Ijubane lokujova: Ijubane eliphakeme (mhlawumbe ngezinto zokwakha ezinezithasiselo zengilazi).
. Ngezidingo ezibonakalayo ezithuthukisiwe ze-5 ~ 8mm enkulu yokugijima umgijimi. Ukwakheka komgijimi konke kuzoqina. Ichweba lomjovo kufanele lifushane ngangokunokwenzeka. Izinhlobo ezahlukahlukene zesango zingasetshenziswa. Izingxenye ezinkulu zepulasitiki azisebenzisi isango elincane, lokhu ukugwema ingcindezi eyeqile ezingxenyeni zepulasitiki noma inani le-shrinkage eleqile. Ubukhulu besango kufanele bulinganiswe nobukhulu bezingxenye zepulasitiki. Uma kunconywa isango elingaphansi, kunconywa ububanzi obuncane be-0.8mm. Izikhunta zokugijima ezishisayo ziyasebenza, kepha zidinga ukulawulwa kokushisa okunembile ukuvikela impahla kusuka ekuvuzeni noma ukuqina ku-nozzle. Uma kusetshenziswa umgijimi oshisayo, usayizi wesango kufanele ube mancane kunoMgijimi Obandayo.
Ⅳ.Izimo Zenqubo Ye-PA1010
Ngoba isakhiwo se-nylon 1010 samangqamuzana aqukethe amaqembu a-hydrophilic amide, kulula ukumunca umswakama, isilinganiso saso sokufakwa kwamanzi okulingana ngu-0.8% ~ 1.0%. Umswakama unamandla amakhulu ezingxenyeni ezingokomzimba nezemishini ze-nylon 1010. Ngakho-ke, izinto ezingavuthiwe kufanele zomiswe ngaphambi kokusebenzisa ukunciphisa okuqukethwe kwalo kwamanzi kungaphansi kwe-0,1%. Lapho yomisa i-nylon 1010 kufanele ivikele i-oxidation ukusunduza, ngoba iqembu le-Ami liyazwela ukonakaliswa koxidation oxygen. Kungcono ukusebenzisa ukomisa i-vacuum lapho ukomisa, ngoba le ndlela inezinga eliphakeme lokuphelelwa ngamandla, isikhathi esifushane sokumisa kanye nekhwalithi enhle yemifino omisiwe. Izimo zokomisa ngokuvamile zivame ukwedlula ezingama-94.6 KPA Vacuum degree, amazinga okushisa angama-90 ~ 100 ℃, isikhathi sokusoma 8 ~ 12h; Okuqukethwe kwamanzi kwehle ku-0,1% ~ 0.3%. Uma ukusetshenziswa kokusebenza okujwayelekile kwe-Oven Cry, izinga lokushisa lokomisa kufanele lilawulwe ku-95 ~ 105 ℃, futhi linwebe isikhathi sokumisa, ngokuvamile sidinga i-20 ~ 24h. Izinto ezomile kufanele zigcinwe ngokucophelela ukugwema ukumuncwa umswakama.
1.Izimo Zenqubo Ye-PA1010
(1) Inqubo yokwenza iplastiya
Ngaphambi kokungena ku-cavity ye-nylon 1010 kufanele ifinyelele emazingeni okushisa acacisiwe, futhi inganikeza inani elanele lezinto ezincibilikisiwe ngesikhathi esibekiwe, izinga lokushisa elibonakalayo lenkomba kufanele libe umfaniswano. Ukuze uhlangabezane nalezi zidingo ezingenhla, umshini wokuhlolisisa umjovo uyasetshenziswa ngokuya ngezimpawu ze-nylon 1010, isikulufa uhlobo lwenguquko noma uhlobo oluhlanganisiwe. Ukushisa kwe-Barrel kwanda ngokulandelana kusuka ku-hopper feed point phambili. Ngoba ukulawulwa kokushisa kwe-barrel eduze nendawo yokuncibilika kuyasiza ekuthuthukisweni kwamandla okusebenza kwemikhiqizo, futhi kungakugwema ukuvuthwa kwezinto, ukuvimba okubonakalayo, izinga lokushisa le-barrel ngokuvamile lingu-210 ~ 230 ℃. Ukuze unciphise ukungqubuzana phakathi kwesikulufa kanye ne-PA1010 ngesikhathi sebusuku, i-wequid paraffin wax ingasetshenziswa njenge-lubring, inani ngokuvamile lingu-0.5 ~ 2 ml / kg, kanye nokushisa okudala kungu-40 ~ 80 ℃. Ukwanda kwengcindezi yangemuva kulungele ukuhlanganisa impahla ku-groove yesikulufa, kususa igesi ephansi engozini kanye nokwanda kwengcindezi yeplastiki, kepha ukukhuphuka kwengcindezi evuthayo kuzokwengeza i-screw yomshini wokukhwabanisa. Ukucindezela kweplastiki emuva akufanele kube phezulu kakhulu, uma kungenjalo kuzonciphisa kakhulu ukusebenza kahle kokwenza ipulasitiki, futhi kukhiqize amandla amaningi we-shear kanye nokushisa kwe-shear, ukuze ukubola kwezinto ezibonakalayo. Ngakho-ke, ngaphansi kwesimo sokuhlangabezana nezidingo zokubumba umjovo, okuphansi kweplastiki emuva kwengcindezi, kungcono, ngokuvamile 0.5-1.0MPA.
(2) Inqubo yokugcwalisa isikhunta:
Kule nqubo, kufanele kubhekwe ekucindezelweni kwengcindezi kanye nejubane lokujova kwe-nylon 1010 umjovo. Ngokuvamile, ingcindezi yomjovo kufanele ibe ngu-2 ~ 5mpa, futhi ijubane lomjovo kufanele lihambe kancane. Uma ingcindezi yomjovo iphakeme kakhulu futhi isivinini somjovo sishesha kakhulu, khona-ke kulula ukugeleza okuyisiyaluyalu, okungafanele ukuqeda ama-bubble kulo mkhiqizo. Ngokwezici eziguqukayo zengcindezi yesigaxa sombango, inqubo yokubumba kokujova ingahlukaniswa izigaba zokondla isikhunta, ukugcwala ukugcwala nokupholisa. Inqubo yokupholisa yokubumba ingahlukaniswa izigaba ezintathu: ingcindezi yokugcina nokondla, ukubuyela emuva nokupholisa ngemuva kokupholisa kwesango.
Imibandela ethile kumele ihlangane ukuze ifezeke ingcindezi yokugcina nokuphinda isebenze. Ngakolunye uhlangothi, kufanele siqinisekise ukuthi kukhona izinto ezibunjiweyo ezanele, okungukuthi, kukhona izinto okufanele zigcwaliswe; Ngasikhathi sinye, uhlelo lokuphonsa lungeke luqiniselwe ekuseni kakhulu, ukuze impahla ebiwe inendlela yokuhamba, okuyisimo esidingekayo sokuphinda usebenzise impahla. Ngakolunye uhlangothi, ingcindezi yomjovo kufanele ibe phezulu ngokwanele futhi isikhathi sokubamba ingcindezi kufanele kube yinde ngokwanele, okuyisimo esanele sokulungiswa kokondla.
Isikhathi sokubamba sivame ukunqunywa ngokuhlola futhi asikwazi ukuba yinde kakhulu noma sifushane kakhulu. Uma isikhathi sokucindezela sibambe isikhathi eside kakhulu, ngeke sandise umjikelezo wokubumba, kodwa futhi senze ingcindezi eyinsalela emgodini oyisikhunta omkhulu kakhulu, okuholela ekuvutheni isikhunta, ngaphezu kwalokho, futhi kwandisa ukusetshenziswa kwamandla. Isikhathi esihle kakhulu sokubamba ingcindezi kufanele kube ukwenza ingcindezi eyinsalela ye-die cavity ibe zero lapho isikhunta sesivuliwe. Ngokuvamile, ingcindezi yokubumba isikhathi esiphethe isikhathi sezinto eziyi-nylon 1010 izingxenye zingu-4 ~ 50 s.
(3) Ukudilizwa:
Izingxenye zeNylon 1010 zingadilizwa lapho zipholile ekubumbeni ukuze zibe nokuqina okwanele. Ukushisa okulimazayo akufanele kube phezulu kakhulu, okuvame ukulawulwa phakathi kokushisa okushisayo kwe-PA1010 kanye nokushisa okubumba. Lapho ukudilizwa, ukucindezela okuyinsalela kwesigaxa sombango kufanele kube sekusondele ku-zero, okunqunywa yisikhathi sokubamba ingcindezi. Ngokuvamile, isikhathi sokubumba sezingxenye ze-PA1010 Thebtion wukuthi: Isikhathi sokujova 4 ~ 20 s, ingcindezi yokubamba isikhathi 4 ~ 50 s, isikhathi sokupholisa 10 ~ 30s.
Umthombo: I-PA NYLON Industrial Chain
Isikhathi sePosi: Mar-09-2023