Inqubo ephelele ye-extrusion ye-PTFE:Isigaba sokuphakela okuqinile, isigaba sokuncibilika, isigaba sokuphambukisa, isigaba sokudlulisa i-Melt kanye nesigaba sokupholisa.
1. Ingxenye yokudla okuqinile
Kulesi sigaba, ukukhethwa kwezinto zokwakha kuyisici esibucayi kakhulu.Ukuze kuqinisekiswe ikhwalithi ye-extrusion, izinto ezisetshenziswayo kufanele zihlangabezane nalezi zimo ezilandelayo: ukuminyana kwenqwaba, ukugeleza okuhle kwamahhala, izinhlayiya kufanele zibe nokuzinza nokuqina okwanele, kanye nezinto zokusetshenziswa Ukuhlanzeka, njll. Njengoba ingxenye yokudla okuqinile ihlukaniswe yaba izinqubo ezimbili, i-powder compaction kanye nokugeleza kwepulaki okuqinile, inqubo yokukhiqiza yalesi sigaba kufanele futhi ichazwe kulezi zici ezimbili.
①Ukuhlanganiswa kwempuphu.Kulesi sigaba, lapho i-plunger ihlehla, impahla exegayo izowela egumbini lokubhoboza iyodwa ngaphansi kwesenzo samandla adonsela phansi, futhi lapho i-plunger iqhubekela phambili kancane kancane futhi iqala ukuminyanisa into, izinhlayiya ezixekethile zizophinde zihlanganiswe zibe minyene. ipulaki eqinile.Le nqubo empeleni iyinqubo yokukhiqiza ingcindezi ye-extrusion ye-mechanical plunger.
②Ukugeleza kwepulaki eqinile.Lapho impahla iqhubeka nokuthuthuka nge-plunger, ipulaki eliqinile lizophusha impahla emgqonyeni wonke phambili ngaphansi kwesenzo sepunch.Futhi kule nqubo, ipulaki eqinile izothola amandla aphushayo kusukela ekugcineni okungemuva kanye nokuphela kwangaphambili nokumelana, ngaleyo ndlela igcine inani elikhulu lamandla.Lapho i-plunger ifinyelela ku-stroke ekude kakhulu, iqala ukuhlehla ngokushesha.Ngalesi sikhathi, impahla izokhulula amandla agcinwe ngaphambilini, ukuze impahla iqhubeke nokuqhubekela phambili.Ngenxa yokuthi i-PTFE ngokwayo inezinto ezinkulu zokukhasa, lapho i-plunger iyicindezela phansi, inani elithile lamandla lizogcinwa ngenxa yokuguqulwa.Le ngxenye yamandla izodedelwa kancane kancane njengoba i-plunger ihlehla, futhi le nqubo izojikeleza Iya emuva naphambili.
2. Isigaba sokuncibilika
Lapho ipulaki eliqinile lithuthuka, lizokwenza ukungqubuzana nodonga lomgqomo futhi likhiphe ukushisa.Ngokuhambisana ne-heater ngaphandle komgqomo, izinga lokushisa lepulaki eliqinile lizoqhubeka likhuphuka, ukuze impahla iqale ukuncibilika futhi ikhiqize ukuncibilika kule nqubo.ulwelwesi.Ukuncibilika kwempahla ngokuvamile kuqala kusukela engxenyeni eseduze kakhulu nodonga lwesilinda, futhi kancane kancane kuyancibilika kusuka ngaphandle kuya ngaphakathi.Njengoba impahla iqhubeka nokuthuthuka, ukushuba kwesikhunta sokutshala izimali nakho kuzoqhubeka nokukhula, futhi i-radius yepulaki eqinile izoba Qhubeka uba mncane futhi ube mncane kuze kube yilapho ukuncibilika kugcwalisa yonke ingxenye yomgqomo.
3. Isigaba sokuphambukisa
Ngokuvamile ingxenye yokuqala yesikhunta sepayipi izoba ne-shunt cone, umsebenzi wayo ukwenza ukuncibilika okugeleza ngale ngxenye kube indandatho encane, okusiza ukushisa nokufaka ipulasitiki futhi kwakha ipayipi enqunywe kusengaphambili.Lapho impahla igeleza kulesi sigaba, ingcindezi izokwakhiwa ekuncibilikeni ngaphansi kokumelana nokungqubuzana kwe-splitter cone namanye amadivaysi, okuzuzisa ukwakheka kwemikhiqizo eminyene, futhi impahla izophinde ibe ngaphansi kwe-shear eqinile lesi sigaba.Ngokwezinga elithile, ukuncibilika kwezinto eziqinile ezisele kuyasheshiswa, futhi izinto ezingase zincibilike ngokuphelele lapho zingena esigabeni esilandelayo.
4. Isigaba sokudlulisa inyibilika
Lapho impahla ingena kulesi sigaba, isiphenduke isimo esincibilikile ngokuphelele, kodwa ingcindezi inokuguquguquka okuthile, futhi ukuncibilika kwe-PTFE kusenezinga elithile lokunwebeka.Lokhu kungenxa yokuthi impahla ihlale isendleleni yokugcina amandla ukuze ikhiphe amandla ohlelweni lokuthuthuka.Ukuze kuqinisekiswe ukuthi ukunyakaza kungaqhubeka;ngokuthuthuka okuqhubekayo kwezinto ezibonakalayo, ukushintshashintsha kwengcindezi kuzoba kuncane futhi kuncane, futhi ukunyakaza kuzozinza kancane kancane.Njengoba i-plunger punching extruder ithatha idizayini yokufa ende, yelula ngokuphumelelayo isikhathi lapho impahla ihlala ku-die, ngaleyo ndlela ithuthukise ukufana nokubumbana komkhiqizo.Ngenxa yezinga eliphezulu lokuncibilika le-PTFE ngokwayo, kuyadingeka ukushisa ukufa ngesikhathi sokukhipha, futhi ubude besigaba sokushisa buzothinta ingcindezi ye-extrusion nesivinini ngokwezinga elithile, ngaleyo ndlela kuthinte ukusebenza kahle kokucubungula kwe-extruder.Ngokwemiphumela yokuhlola efanele, uma isikhathi eside isigaba sokushisisa, siba sikhulu ingcindezi ye-extrusion futhi kuba ngcono izici ezibonakalayo zomkhiqizo.Kodwa-ke, uma isigaba sokushisa siside kakhulu, singabangela imifantu emkhiqizweni.Ukuze uxazulule le nkinga, isigaba sokushisa somphongolo singahlukaniswa sibe yizigaba ezintathu, isigaba ngasinye singakwazi ukulawula izinga lokushisa ngokuzimela, futhi umkhono we-aluminium wengezwe phakathi kombhobho kanye nendandatho yokushisa kagesi, ukuze ibhalansi yendawo yokushisa ifike. izinga lokushisa lomgqomo lingaqinisekiswa .
5. Isigaba sokupholisa
Lesi sigaba sikhuthaza ukupholisa nokulolongwa kwezinto.Phakathi nale nqubo, izinga lokushisa lempahla lingehliswa libe ngaphansi kuka-250 ℃, kanye nemfuneko yokuthi izinga lokushisa libe ngu-200 ℃ lapho impahla ikhishwa eshubhuni elinezindonga ezincane.Khona-ke, ipayipi elikhishwa epayipini elinezindonga ezincane lidinga ukupholiswa emoyeni ukuze lilawule isikhathi sokupholisa.Kumele kuqashelwe ukuthi uma isigaba sokupholisa sifushane kakhulu, umkhiqizo uzongena esiteji sokupholisa umoya kusengaphambili, okuzokwenza ukuthi umkhiqizo ube mkhulu kakhulu ngosayizi, unciphise izinga lokunciphisa, futhi ukwandise ukucindezeleka kwangaphakathi.Ukuze kuthuthukiswe ikhwalithi yomkhiqizo, i-core rod kufanele ibe nkulu ngokufanelekile kunobude bomphongolo ukuze kuqinisekiswe ukuthi i-core rod ingadlala indima enhle yokusekela esigabeni sokupholisa komoya somkhiqizo.
Isikhathi sokuthumela: Aug-13-2020