I-Suko ingumkhiqizi wemishini encibilikisiwe ye-PP futhi inikezela ngemishini futhi sixazulule izinkinga eziningi zokusebenzisa imishini kumakhasimende ethu.Sifingqe izinkinga ezahlukahlukene ezingase zenzeke ngesikhathi sokusebenza komshini oncibilikisiwe, futhi sabelane ngazo nabo bonke abangani embonini.
Ngokusabalala kweI-COVID 19emhlabeni, njengezinto eziwumgogodla zamamaski obuso bokuzivikela - theindwangu encibilikayo, usephenduke umlingiswa wemakethe yobhubhane lwe-COVID-19.
I-melt-blown ikhiqizwa ngokugeleza komoya oshisayo wesivinini esikhulu ukuze kwelule ngokushesha futhi kuqiniswe ukuncibilika kwe-polymer okusanda kukhishwa ukwenza indlela yokuphotha.Inzuzo yukuthi ukugeleza kwenqubo kufushane, futhi indwangu engeyona eboshwe ingakhiqizwa ngokuqondile ngokuphotha.Ububi ukuthi imishini idinga ukuthunyelwa.
USuko unguchwephesheImishini ye-PP encibilikayoumkhiqizi kanye nomphakeli futhi sixazulule izinkinga eziningi zokuthumela umshini kumakhasimende ethu.
Sasifingqa izinkinga ezihlukahlukene ezingase zenzeke ngesikhathi somshini, futhi sabelane ngazo nabo bonke abangani embonini.
Isingeniso esifushanekwe Mi-elt-blown Mane
I-polymer melt ekhishwe nge-screw extruder ifafazwa ngomoya onesivinini esiphezulu futhi onethempelesha ephezulu ukuze ukuncibilika kunwetshwe ngokwedlulele ukuze kwakhe imicu emincane kakhulu.Le micu ye-ultra-fine ifinyezwa kurola ukuze yenze indwangu yesihlungi esingalukiwe.
Ukugeleza kwenqubo: ukuphakelwa kwempushana ye-polymer → i-extrusion ye-polymer → ukwakheka kwefayibha → ukupholisa ifayibha → ukuqinisa okunamathelayo → ukujikajika okusikiwe → indwangu yesihlungi esingalukiwe.
Izinyathelo zika-Mi-elt-blownManeCukweqa
1. Beka ezingeni lokushisa eliphezulu kanye nomfutho womoya ukuze wenze umshini oncibilikayo ufafaze indwangu ethambile.
2. Bese ulungisa kahle izinga lokushisa le-die kanye nomoya oshisayo kuze kube yilapho indwangu izwakala ilukhuni kancane.
3. Rekhoda izinga lokushisa lokufa kanye nezinga lokushisa lendawo ngayinye yesikulufu.
4. Lungisa kahle ingcindezi yomoya, isivinini sesikulufu kanye nenani le-extrusion elincibilikisa ukwenza indwangu ithambe futhi.
5. Lungisa isivinini sokuvala ukuze wenze isisindo sendwangu sifinyelele ezingeni.
6. Engeza ama-electrets amabili ngokusho kwejubane lomqoqi wendwangu.Ngokuvamile, i-electret iqhele ngamasentimitha angu-5-7 ukusuka kwendwangu, futhi i-voltage emile ingu-40kv-60kv.Uma ijubane lomqoqi wendwangu lihamba kancane, vele ungeze i-electret emile.
Izilungiselelo Zokuqala Zepharamitha
1. Izinga lokushisa lesikulufa: setha 190℃ endaweni yokuqala, 200℃ endaweni yesibili, 210℃ endaweni yesithathu, njll.
2. Ukushisa kwekhanda lokufa: 250℃ (ngokuvamile 240-255℃).
3. Ukushisa kwephakheji yokushisa: izinga lokushisa langaphakathi 300 ℃, izinga lokushisa lomoya oshisayo we-outlet 270 ℃.
4. Ukushintsha inetha le-fiber esheshayo, iphampu yemitha, isihlungi sekhanda lokufa: 240℃.
5. Umfutho womoya oshisayo: 0.2-0.4MPa.Izinto ezijwayelekile ze-PP ezincibilika kakhulu, ingcindezi yomoya ingasethwa ku-0.2-0.3MPa.Ingcindezi yomoya yezinto ezizungeze i-1300 ingaba phezulu.Setha umfutho womoya ngokwemishini ehlukene encibilika namakhanda okufa.
6. Indwangu encibilikisiwe iqoqa ibanga: 15-25 cm, ikakhulukazi i-15-20 cm.
7. Ubukhulu be-outlet yomoya bufana nebanga ukusuka ekugcineni kwe-spinneret ukuya endizeni, 1-2mm.
8. Ijubane lesikulufu limaphakathi noma lincane (umfutho womoya omncane, ivolumu encane yokukhipha, umfutho womoya omkhulu, ivolumu enkulu yokukhipha).
Ukuphatha okuhlukile
1. Uma indwangu encibilikisiwe ingakathambile ngaphansi kwezinga lokushisa eliphakeme ngokuqhathaniswa, izinkinga zingabandakanya: a.inkinga yenzwa yokushisa;b.inkinga yokulawula izinga lokushisa.Uma lezi zinkinga ezimbili ziqedwa, ungakwazi ukwandisa izinga lokushisa kuze kube yilapho kuphuma indwangu ethambile encibilikayo.Qaphela ukuthi izinga lokushisa elidlulele lizodala i-crystallization phenomena.
2. Izinto ezinkulu ezincibilikayo zisebenzisa izinto ezincibilikayo ezinokuncibilika okungaba ngu-1500, futhi okokusebenza okuncane kungasebenzisa into encibilikayo cishe ngo-1300.
3. Uma izinga lokushisa lokufa lisethwe cishe ku-210-230℃, futhi ingcindezi yomoya ingaphansi kuka-0.2Mpa, umshini uzoba nokwenzeka kwezinto endizayo, okungenzeka kube okungavamile kulezi zici ezilandelayo: a.inkinga yenzwa yokushisa;b.inkinga yomfutho womoya;c.ubukhulu kanye ne-engeli ye-outlet yomoya ayijwayelekile.
4. Uma indwangu encibilikisiwe ingasathambile noma iqala ukuba brittle lapho yengezwa ekushiseni okuphezulu kakhulu, indwangu izoqala ukuthambisa ngemva kokwandisa izinga lokushisa lokucubungula.Iningi lezizathu izinkinga zemishini encibilikayo.Kunconywa ukuthi uxhumane nomkhiqizi wemishini.Yiqiniso, kuyadingeka futhi ukukhipha ukuthi kunezinkinga ezinkulu zekhwalithi ngezinto zokwakha.
5. Ukwengezwa kwe-electret master batch ekukhiqizeni ngokuvamile kudinga ukulungiswa kwepharamitha yenqubo efanele ukuze ihambisane nayo.Kusetshenziswa ama-batch ahlukene e-electret master, izilungiselelo zepharamitha yenqubo yomshini ofanayo oncibilikayo zihlukile.Ungabhekisela kunqubo yokulungiswa engenhla ukuze ulungise indwangu encibilikile ibe sesimweni esihle kakhulu, bese uqhathanisa futhi uhlole ukusebenza.
6. Uma sikhulu inani le-electret master batch, kuba ngcono umphumela we-electrestatic.Kodwa ngemva kokufinyelela ku-6%, umphumela wanda.Ukuphakama kwesilinganiso sokwengezwa, kuba mkhulu umphumela endwangu engalukiwe encibilikisiwe ephelile.
Isitatimende seukwehla kwe-ctrostatic
- Ngemuva kokuthi indwangu encibilikisiwe iphathwe nge-electret, kokubili i-electret master batch kanye nezinto ze-PP zingashajwa ngogesi omile.Ugesi omile ku-electret master batch enenani elincane lokwengeza ungakhuphula izinga lokuhlunga elizinzile cishe ngo-10-20%, ukubola kuhamba kancane kakhulu ngaphansi kwezimo zokupakisha nezokugcina.
2. Ukwehla kwezinga lokuhlunga ngokuvamile kubangelwa inani elincane le-electret attenuation ye-static electret kanye nenani elikhulu le-melt blown pp.
3. Ezinye izindwangu ezincibilikayo zithambile kodwa ukuqina kwazo akwanele.Njengoba isikhathi sokugcina sikhula, izindwangu zizoba brittle.Futhi kulula ukubangela ukwehla kwezinga lokuhlunga.Lezi zindwangu ezincibilikayo zivame ukukhiqizwa ngaphansi kwesimo sokushisa okuphakeme kakhulu kanye nokushisa komoya oshisayo.
4. Izinga lokuhlunga elingazinzile lingashintshwa ngokulandela lezi zindlela.Okokuqala, ngaphandle kokwengeza i-electret master batch kanye nokwelashwa kwe-electret, yenza indwangu encibilikisiwe ene-filtration eyisisekelo eyisisekelo ephezulu.Ngalesi sisekelo, akukho ukwelashwa kwe-electret okungangezwa, engeza kuphela i-electret master batch ukuze uhlole umehluko wezinga lokuhlunga.Ngoba i-electret master batch enhle ingakhiqiza ugesi omile phakathi nenqubo yokusonta ngaphandle kokwelashwa kwe-electret, okungathuthukisa izinga lokuhlunga kwendwangu encibilikayo.
5. Izinga lokuhlunga elibonakalayo lendwangu encibilikile liyisisekelo, futhi i-electret master batch iwukhiye ukuze kufinyelelwe ukusebenza kahle kokuhlunga okuzinzile.
6. Umshini ohlukanisiwe oncibilikayo ungenza indwangu encibilikisiwe ehlukene, ikakhulukazi ikhwalithi yokufa.Omunye umshini oncibilikayo ungafinyelela izinga lokuhlunga elingu-85%.Uma ufuna ukufinyelela ku-90% noma ngaphezulu, udinga izinto ze-PP zekhwalithi ephezulu.
Indlela yokulungisa yokuncibilikaindwanguiba brittle futhi ibe nzima
1. Kusuka emshinini oncibilikayo, kubangelwa ikakhulukazi izizathu ezilandelayo: a.ukuphotha okungalingani, b.ukuchithwa kokushisa okungalingani okubangelwa ukunganele komthamo womoya omubi wokubuyisela umoya, kanye nokucindezeleka kwangaphakathi kubangela ukuqina.Ukwandisa ivolumu yomoya wefeni yokupholisa, ukulungisa ivolumu yokuncibilika kwe-extruder, nokulungisa izinga lokushisa lomoya oshisayo kungathuthukisa le nkinga.
2. Ngokombono wezinto ze-PP, sebenzisa impahla ye-PP yamafutha encibilika kancane ingabangela ukuthi isipina sibe sishubile.Ngemuva kokupholisa nokucwebezela ngokuphelele, kuzokwenza indwangu encibilikisiwe ibe brittle futhi iqine.Okuthandwayo kunikezwa ezintweni ezincibilikayo ezinenkomba encibilikayo ezungeze i-1500. Ama-filaments amancane, athambile futhi asakazwa ngokulinganayo, futhi indwangu encibilikayo ebangelwa ukuncibilika ithambile.
3. Uma umsunguli wenqubo ye-peroxide ekukhiqizeni izinto ezincibilikayo engalawulwa kahle, indwangu ijwayele izinkinga ezibuhlungu nezinzima.Uma impahla ye-PP nezinga lokushisa lokucubungula liphezulu kakhulu, lizoshisisa kakhulu ngaphakathi kwesikulufu futhi lonakaliswe kakhulu ngokushisa.Enqubweni yokukhiqiza impahla, inqubo ye-peroxide idinga ukuqedela ukunqamuka kweketango lamangqamuzana ngaphambi kokuba isikulufu sikhishwe, ukuvimbela insalela yesibili ukuthi ingangeni kusikulufu sendwangu engalukiwe ukuze uqhubeke nokusabela.Lokhu kudinga inhlanganisela enhle yokulawula iresiphi kanye nemishini yesikulufu.
4. Ayikho ifeni yomoya ebuyayo yokuqoqa ngerola.Ngemuva kokusonteka, izinga lokushisa lendwangu encibilikile liphezulu futhi ukushisa akukwazi ukuchithwa ngokushesha.Ngemva kokupholisa, izoba brittle.
5. Emishinini emincane encibilika, inkinga ye-brittleness nokuqina ingaxazululwa ngokukhetha izinto zokusetshenziswa kwefomula ehlanganisiwe PP.
Indlela yokuthuthukisa ubulukhuni bencibilika indwangu
1. Yehlisa ibanga elamukelayo lendwangu encibilikayo futhi ulungise kahle ukugeleza komoya oshisayo noma izinga lokushisa ngendlela efanele.Uma izinga lokushisa le-ambient liphezulu kakhulu, ungakwazi ukwandisa ukuncela okuphansi.
2. Yehlisa isivinini se-extrusion futhi unciphise okukhiphayo.
3. Khulisa ukucoleka kwefayibha futhi unciphise izinga lokushisa elijikelezayo.
4. Yamukela impahla ye-PP yefomula ehlanganisiwe.
Okungenhla kuyisifinyezo sesipiliyoni esisebenzayo somsebenzi wethu.Yebo, izinkinga nezindlela zokulungisa umshini oncibilikayo ziningi kakhulu kunalezo ezingenhla.Uma unemibuzo emshinini nezinto zokwakha, ungasithinta [i-imeyili ivikelwe]
Isikhathi sokuthumela: May-17-2020