Ukuxuba ikhanda lemishini ye-polyurethane elastomer: ukuxuba ukuxuba, ukuxuba ngokulinganayo.Ngokusebenzisa uhlobo olusha lwevalvu yomjovo, idigri yevacuum yinhle ukuqinisekisa ukuthi umkhiqizo awunawo amabhamuza amakhulu.Ukunamathisela umbala kunganezelwa.Ikhanda lokuxuba linesilawuli esisodwa sokusebenza kalula.Ukugcinwa kwengxenye nokulawula izinga lokushisa: Ithangi lesitayela sejakhethi elinegeji yeleveli ebonakalayo.Izikali ze-Digital pressure zisetshenziselwa ukulawula ingcindezi kanye nesici/ubuncane bamanani e-alamu.Izifudumezi eziphikisayo zisetshenziselwa ukulawulwa kwezinga lokushisa.Ithangi lifakwe i-stirrer ukuze lixube izinto ngokulinganayo.

Ukusetshenziswa kwezisetshenziswa zeimishini ye-polyurethane elastomerukukhiqizwa:

1. Isikhumba esiqinile esingaqinile: sisetshenziswa ezintweni ezehlukene zefenisha, izindawo zokubeka izingalo zesihlalo sebhodi, izindawo zokubeka izihlalo zemoto yabagibeli, imicamelo kabhavu wokubhucunga, izindawo zokubeka izandla zikabhavu, izindawo zokuhlala ezingemuva zikabhavu, amakhushini ezihlalo zikabhavu, amasondo esiteringi emoto, amakhushini emoto, ingaphakathi lemoto nangaphandle. Izesekeli, amabhampa, omatilasi bemishini yezokwelapha neyokuhlinzwa, ama-headrest, amakhushini ezihlalo zempahla yokufaneleka, izesekeli zemishini yokufaneleka, amathayi aqinile e-PU nolunye uchungechunge;

2. Igwebu elithambile nelihlehla kancane: zonke izinhlobo zamathoyizi ahlehla kancane, ukudla okwenziwayo okubuya kancane, omatilasi abahlehla kancane, imicamelo ehlehla kancane, imicamelo yendiza ehlehla kancane, imicamelo yezingane ehlehla kancane neminye imikhiqizo;

3. Igwebu elithambile elinokuqina okuphezulu: amathoyizi nezipho, amabhola e-PU, amakhushini efenisha eqinile e-PU, isithuthuthu esiqinile se-PU, ibhayisikili, namakhushini ezihlalo zemoto, amasadla emishini yezemidlalo eqinile eyi-PU, ama-backrest esitulo samazinyo e-PU, i-PU i-headrest yezokwelapha, umatilasi wezokwelapha we-PU, i-PU high resilience boxing glove liner.

4. Izigaba zengadi ezithambile neziqinile: Uchungechunge lwendandatho yebhodwe lembali le-PU, uchungechunge lwebhodwe lezimbali lokhuni oluhambisana nemvelo, uchungechunge lwembali ye-PU sekulingisa kanye namaqabunga, uchungechunge lwe-PU sekulingisa sesiqu sesihlahla, njll.;

5. Ukugcwaliswa okuqinile: amandla elanga, izifudumezi zamanzi, amapayipi okufudumeza agqitshiwe agqitshwe ngaphambili, amaphaneli okugcina abandayo, amapaneli okusika, amakalishi elayisi ashunqisiwe, amaphaneli amasemishi, izivalo ezivalayo, izixhumi zesiqandisi, izinto ezifakwa efrijini, iminyango namafasitela eqinile. , iminyango yegalaji, amabhokisi okugcina amasha, uchungechunge lwemiphongolo yokufakwa ngaphakathi;

6. Ukupakisha okuthambile nokuqinile kwesivikelo sendawo: kusetshenziswa emikhiqizweni ehlukahlukene entekenteke nebalulekile yokupakisha nolunye uchungechunge;

7. I-foam yokhuni lokulingisa okunzima: iqabunga lomnyango we-foam eliqinile, umugqa wekhoneni lomhlobiso wezakhiwo, umugqa ophezulu, ipuleti ye-ceiling, ifreyimu yesibuko, i-candlestick, ishalofu lodonga, isipika, izesekeli zokugezela ze-foam ezinzima.

Izinto zokusetshenziswa zama-polyurethane elastomers ikakhulukazi ziyizigaba ezintathu, okuyi-oligomer polyols, i-polyisocyanates kanye nama-chain extender (ama-crosslinking agents).Ngaphezu kwalokho, ngezinye izikhathi ukuze ukwandise ijubane lokusabela, uthuthukise ukusebenza kokucubungula nokusebenza komkhiqizo, kuyadingeka ukwengeza ama-agent ahlanganisayo.Izinto zokusetshenziswa kuphela ezisetshenziswa ekukhiqizeni izihlalo ze-polyurethane zichazwe ngokuningiliziwe ngezansi.

Imikhiqizo ye-polyurethane elastomer inemibala, futhi ukubukeka kwayo okuhle kuncike kumbala.Kunezinhlobo ezimbili zama-colorants, odayi be-organic kanye nezingulube ze-inorganic.Iningi lodayi bemvelo lisetshenziswa emikhiqizweni ye-thermoplastic polyurethane, izingxenye zomjovo zokuhlobisa kanye nenhle nezingxenye ezikhishwe.Ngokuvamile kunezindlela ezimbili zokufaka imibala emikhiqizweni ye-elastomer: enye iwukugaya izinto ezisizayo ezifana ne-pigment nama-oligomer polyols ukuze kwakheke ugologo kamama we-color paste, bese uxuba futhi uhlanganise inani elifanele lotshwala lukamama olunamathelisa kanye nama-oligomer polyol ngokulinganayo, bashise.Ngemuva kokuphelelwa amandla kwamanzi nge-vacuum, ibhekana nezingxenye ze-isocyanate ukukhiqiza imikhiqizo, njengama-granules ombala we-thermoplastic polyurethane kanye nezinto zokupenda umbala;enye indlela iwukugaya izithasiselo ezifana ne-pigment nama-oligomer polyols noma ama-plasticizers kunamathisele umbala noma unamathisele umbala, aphelelwe amanzi ngenxa yokushisisa kanye ne-vacuum, futhi apakishwe ukuze asetshenziswe kamuva.Uma usebenzisa, engeza ukunamathisela kombala okuncane ku-prepolymer, gudluza ngokulinganayo, bese usabele nge-ejenti exhumanisa iketango enwebayo ukuze usakaze umkhiqizo.Le ndlela isetshenziswa kakhulu ohlelweni lwe-MOCA vulcanization, okuqukethwe kwe-pigment ekunamathisele kombala cishe ku-10% -30%, futhi inani elingeziwe lokunamathisela umbala kumkhiqizo ngokuvamile lingaphansi kuka-0.1%.

I-polymer diol kanye ne-disocyanate kwenziwa ama-prepolymers, ahlanganiswe ngokugcwele, ajovwe esikhunjeni ngemuva kokukhishwa kwe-vacuum defoaming, ajovwe esibunjeni bese welapheka, bese welashwa ukuze kutholwe umkhiqizo:

Okokuqala, khipha amanzi emishinini ye-polyurethane elastomer ngaphansi kwengcindezi encishisiwe ku-130 ℃, engeza okokusetshenziswa kwe-polyester ephelelwe amanzi emzimbeni (ku-60 ℃) emkhunjini wokusabela oqukethe i-TDI-100 ehlanganisiwe, bese uhlanganisa i-prepolymer ngokushukumisa okwanele.Ukusabela kwe-synthesis kuyinto exothermic, futhi kufanele kuqashelwe ukuthi izinga lokushisa lokusabela kufanele lilawulwe ngaphakathi kwebanga lika-75 ℃ kuya ku-82 ℃, futhi ukusabela kungenziwa amahora angu-2.I-prepolymer ehlanganisiwe yabe isifakwa kuhhavini wokomisa i-vacuum engu-75°C, futhi yakhishwa ngaphansi kwe-vacuum amahora angu-2 ngaphambi kokusetshenziswa.

Bese ushisisa i-prepolymer ibe ngu-100 ℃, futhi uvale (i-vacuum degree -0.095mpa) ukuze ususe amabhamuza omoya, ukale i-ejenti exhumanisa i-MOCA, uyishise ngesithando somlilo sikagesi ku-115 ℃ ukuze incibilike, bese umboza isikhunta ngokukhululeka okufanele. i-ejenti yokushisa kuqala (100 ℃).), i-prepolymer ekhishwe umoya ixubene ne-MOCA encibilikile, izinga lokushisa lokuxuba lingu-100℃, futhi ingxube inyakaziswa ngokulinganayo.Esibunjeni esishisiwe, lapho ingxube ingagelezi noma inganamatheli esandleni (njengejeli), vala isikhunta bese usibeka ku-vulcanizer yokubumba i-vulcanization (izimo ze-vulcanization: izinga lokushisa le-vulcanization 120-130 ℃, isikhathi sokuvuthwa, isikhathi esikhulu. kanye nama-elastomers Aminyene, isikhathi sokuvuthwa singaphezu kwama-60min, kuma-elastomer amancane nancane, isikhathi sokuvuvukala singama-20min), ukwelashwa kwangemva kokuvuvuka, beka imikhiqizo ebunjiwe kanye ne-vulcanized ku-90-95 ℃ (ezimweni ezikhethekile, kungaba ngu-100 ℃) Qhubeka nokuvuvukala amahora angu-10 kuhhavini, bese uyibeka ekamelweni lokushisa izinsuku ezingu-7-10 ukuze uqedele ukuguga futhi wenze umkhiqizo ophelile.