Izimbangela zokuguga kwesikulufu somshini wokubumba umjovo oqondile

Uhlelo lomjovo lokuma mpo umjovo udini umshini yakhiwe ngomshini wokwenza ipulasitiki kanye nethuluzi lokudlulisa amandla. I-injection screw plasticizing device yenziwe ngokuyinhloko yidivayisi yokuphakela, umgqomo, isikulufu, kanye nombhobho. Idivayisi yokudlulisa amandla ihlanganisa isilinda somjovo, isihlalo somjovo esinyakazayo nesikulufu se-Drive.

I isikulufu sokujova isetshenziswa isikhathi eside ngaphansi kwezinga lokushisa eliphezulu, umfutho ophezulu, i-torque ephezulu yemishini kanye nemvelo yokungqubuzana okuphezulu. Izinto ezimbalwa zokuqala zidingeka yimibandela yenqubo, futhi ukuguga okubangelwa ukungqubuzana akunakugwenywa. Ngokuvamile, isikulufu sivezwe ku-nitrogen engaphezulu. Ukwelashwa ngamakhemikhali ukwandisa ubulukhuni bobuso, leyo, ukuthuthukisa ukumelana nokugqoka, kodwa uma izimbangela zokugqoka zinganakwa futhi ukugqoka akuzanywa ukunciphisa ngangokunokwenzeka, impilo yokusebenza yesikulufu nakanjani izoncishiswa kakhulu.

Okulandelayo kuchaza i izizathu ukuguga kwesikulufu somjovo kanye nezindlela zokunciphisa ukuguga
1. Ipulasitiki ngayinye inebanga lokushisa elifanele lokucubungula le-plasticization. Izinga lokushisa lokucubungula lomgqomo kufanele lilawulwe ukuze lisondele kuleli banga lokushisa. Ipulasitiki eyimbudumbudu ingena emgqonyeni isuka ku-hopper, futhi izofika kuqala esigabeni sokudla, futhi ukungqubuzana okomile kuzokwenzeka nakanjani esigabeni sokudla. Lapho la mapulasitiki engashisi ngokwanele futhi ukuncibilika kungalingani, kulula ukubangela ukugqoka okwenyuka odongeni lwangaphakathi lombhobho kanye nobuso be-screw. Ngokufanayo, esigabeni sokucindezela kanye nesigaba se-homogenization. Uma isimo esincibilikisiwe sepulasitiki siphazamisekile futhi singalingani, kuzophinde kubangele ukuguga okwenyuka.

2, ijubane kufanele lilungiswe kahle. Ngoba amanye amapulasitiki anezelwa ngama-reinforcing agents, njengemicu yengilazi, amaminerali noma amanye ama-fillers, ukungqubuzana kwalezi zinto ezintweni zensimbi kuvame ukuba kukhulu kunokwamapulasitiki ancibilikisiwe. Lapho umjovo ubumba la mapulasitiki, uma zenziwe ngesivinini esikhulu sokujikeleza, izokwandisa amandla okugunda epulasitiki, futhi ngesikhathi esifanayo, ukuqiniswa kuzokhiqiza imicu eminingi ehlisiwe. Imicu ecutshiwe iqukethe iziphetho ezicijile, ukugqoka okubangela Amandla anda kakhulu, kanye nomphumela wokukhuhla wamaminerali angaphili lapho uslayida endaweni yensimbi ngesivinini esikhulu awumncane, ngakho isivinini akufanele silungiswe sibe phezulu kakhulu.

Uyithuthukisa kanjani impilo yesikulufu somjovo
Isikulufu somjovo singasebenza isikhathi eside ngaphansi kwezinga lokushisa eliphezulu, umfutho ophezulu, i-torque ephezulu yemishini kanye nemvelo yokungqubuzana okuphezulu. Izimo zenqubo zidinga lezi zici, futhi ukulahlekelwa okubangelwa ukungqubuzana akunakugwenywa. Ngokuvamile, izikulufu zokujova zibe wukwelashwa kwe-surface nitriding ukwandisa ubulukhuni bobuso, leyo, ukuthuthukisa ukumelana nokugqoka. Noma kunjalo, uma imbangela yokugqoka inganakwa futhi ukugqoka akuncishiswa, impilo yesevisi yesikulufu somjovo izofinyezwa kakhulu. Izizathu zokuguga kwesikulufu somjovo kanye nezindlela zokunciphisa ukuguga zichazwe ngezansi.

1.Wonke amapulasitiki ane ekahle plasticizing izinga lokushisa. Izinga lokushisa lokucubungula lomgqomo kufanele lilawulwe eduze kwalolu hlu lokushisa. Ipulasitiki eyi-granular ingena emgqonyeni isuka ku-hopper futhi ifike kuqala endaweni yokudla. Ukungqubuzana okomile kuzokwenzeka nakanjani endaweni yokuphakelayo. Uma lezi pulasitiki zingashisi ngokugcwele futhi zincibilike ngokulinganayo, zizobangela kalula ukuguga okukhulu odongeni lwangaphakathi lomgqomo kanye nobuso besikulufu somjovo. Ngokufanayo, esigabeni sokucindezela kanye nesigaba se-homogenization, uma isimo esincibilikisiwe sepulasitiki sinesiphithiphithi futhi singalingani, futhi kuzodala ukuguga okukhuphukile kwesikulufu somjovo.
2. Ijubane kufanele lilungiswe ngendlela efanele. Ngoba amanye amapulasitiki anezelwa ngama-reinforcing agents, njengemicu yengilazi, amaminerali noma amanye ama-fillers. Ukungqubuzana kwalezi zinto ezintweni zensimbi ngokuvamile kukhulu kakhulu kunokwepulasitiki encibilikisiwe. Lapho la mapulasitiki abunjwa ngomjovo, uma zenziwe ngesivinini esikhulu sokujikeleza, futhi ngesikhathi esifanayo ukwandisa amandla okugunda epulasitiki, kuzophinde kubangele ukuthi ukuqiniswa kukhiqize imicu eqoshiwe eyengeziwe. I-fiber eqoshiwe iqukethe iziphetho ezibukhali, okungabangela ukuguga kwesikulufa somjovo. Lapho amaminerali angaphili eshelela endaweni yensimbi ngesivinini esikhulu, umphumela wokukhuhla awumncane, futhi kuzodala ukuguga kwesikulufu somjovo. Ngakho-ke, ijubane akufanele lilungiswe libe phezulu kakhulu.

Izisekelo Zenqubo Yokubumba Umjovo
Izinga lokushisa, ingcindezi, isivinini kanye nezinjongo zokulawula ukupholisa, ukusebenza kanye nemiphumela yokuthi ukulungiswa kwezilungiselelo zomshini wokubumba umjovo kuyithinta kanjani inqubo kanye nokwenza ngcono ikhwalithi izilungiselelo zokulawula isikulufu ukugcwaliswa kwezigaba eziningi kanye nokulawula ukupakisha kwezigaba eziningi; Imiphumela ye-crystallization, i-non-crystallization kanye ne-molecular/fiber alignment on inqubo kanye nekhwalithi yokucindezeleka kwangaphakathi, izinga lokupholisa, ukuncipha kwepulasitiki ezingxenyeni zepulasitiki zekhwalithi ye-rheology yepulasitiki: ipulasitiki igeleza kanjani, iqondanisa futhi iguqule i-viscosity, ubudlelwano phakathi kokugunda kanye nokuqondanisa kwe-molecular/fiber. I ubuhlobo phakathi kokuthulula uhlelo, uhlelo lokupholisa, ukwakheka kwesikhunta kanye nenqubo yomjovo

Uma unemibuzo ku umjovo udini ,plz ngicela ukubuza Iqembu le-FLYSE,sizokunikeza isevisi engcono kakhulu!