Lapho abakhiqizi befuna ipholima eguquguqukayo, esebenza kahle kakhulu, esebenza ngaphansi kwezimo ezinzima, i-thermoplastic polyurethane—eyaziwa kakhulu ngokuthi i-TPU—ihlala iyinto yobunjiniyela ethenjwa kakhulu ekukhiqizeni kwesimanje. I-TPU plastic material ivula igebe phakathi kwamapulasitiki aqinile norabha othambile, inikeza inhlanganisela eyingqayizivele yokunwebeka, ukuqina, nokumelana namakhemikhali okungafaniswa yizipholima ezimbalwa. Noma ngabe iphrojekthi yakho idinga amajakhethi ezintambo aguquguqukayo, amasudi ezicathulo ahlala isikhathi eside, izinsimbi zezimoto ezinembile, noma amakesi okuvikela acwebezelayo, ukuqonda amandla aphelele e-TPU granules kubalulekile ukuze ukhethe isixazululo esifanele. Lo mhlahlandlela obanzi uhlola ukuthi iyini i-TPU, ukuthi igqama kuphi kuzo zonke izimboni, ukuthi icutshungulwa kanjani ngendlela efanele, nokuthi kungani i-Dongguan Mier Plastic Material Co., Ltd. isiphenduke umthengisi okhethwayo emabhizinisini emhlabeni wonke.

I-Thermoplastic polyurethane, noma i-TPU, iwuhlobo lwamapulasitiki e-polyurethane anezakhiwo zombili zokunwebeka (elastomeric) nezokushisa (thermoplastic), okwenza kube yinto ephawulekayo emndenini wama-polymer. Ngokwekhemistri, i-TPU yakhiwa ngokusabela kwama-diisocyanate nama-short-chain diol nama-long-chain polyol, kwakheke i-segmented block copolymer enezingxenye eziqinile nezithambile. Lezi zingxenye ezimbili zisebenza ndawonye ukunikeza ibhalansi eyisihluthulelo yalokhu: izingxenye eziqinile zinikela ukuqina, amandla, nokumelana nokushisa, kuyilapho izingxenye ezithambile zinikela ukuguquguquka, ukunwebeka, nokusebenza kahle emazingeni okushisa aphansi. Ngenxa yokuthi isakhiwo saleli elastomer le-polyurethane singalungiswa ngokunembile ngesikhathi sokwakhiwa, abakhiqizi bangakha i-TPU enezinga elibanzi lama-hardness, kusukela ezingeni elithambile kakhulu elifana nejeli kuya kweziqinile, eziqinile, kuyilapho igcina izakhiwo ezinhle kakhulu zokubuya nokululama.

Izici ezibalulekile zempahla ye-TPU plastic zichaza ukuthi kungani ithathe indawo yezinto zendabuko ezifana nerabha ne-PVC ezinhlelweni eziningi. Okokuqala, ukunwebeka kwayo okukhethekile kuvumela imikhiqizo ukuthi yelule, icindezeleke, futhi ibuyele emuva kaningi ngaphandle kokonakala okungapheli, okuyisici esibalulekile kuma-seal, ama-gasket, nezingxenye eziguqukayo. Okwesibili, i-TPU inikeza ukumelana nokugqokwa okuhle kakhulu, imvamisa idlula irabha nezinye izinto eziningi ze-thermoplastic ekuhlolweni kokugqoka, okwenza kube yimpahla ekhethwayo kumabhande okuthutha, amarola ezimbonini, nasezicathulweni zangaphansi. Okwesithathu, ukumelana namakhemikhali kwe-TPU kuvikela emafutheni, amafutha, uphethiloli, nezinye izincibilikisi eziningi, kuyilapho irabha yemvelo ne-PVC kungase kwehluleke ngaphansi kwezimo ezifanayo zokuchayeka. Okokugcina, i-TPU igcina ukuguquguquka noma emazingeni okushisa aphansi futhi ihlala izinzile ngobukhulu bayo emazingeni okushisa aphezulu ngaphakathi kwebanga layo lokusebenza, okunikeza onjiniyela ukuzethemba ezimweni ezinzima zemvelo.

Kubalulekile ukuqaphela ukuthi i-TPU akusiyona umkhiqizo owodwa kodwa umndeni wezinto ezisetshenziswayo, futhi izigaba ezimbili ezinkulu yilezi: i-polyester-based TPU ne-polyether-based TPU. Izigaba ezisekelwe ku-polyester zinikeza amandla emishini aphezulu, ukumelana nokugqokwa, kanye nokumelana kaphethiloli namafutha, okwenza zifaneleke kahle kakhulu ezinhlelweni zezimboni ezisindayo njengamahose namasondo. Izigaba ezisekelwe ku-polyether, ngakolunye uhlangothi, zinikeza ukumelana namanzi okuthuthukisiwe, ukumelana namagciwane, kanye nokuguquguquka emazingeni okushisa aphansi, okwenza zifaneleke kangcono ezindaweni zasolwandle, imishini yezokwelapha, nezintambo zangaphandle. Uma kuqhathaniswa i-TPU nerabha, kuyacaca ukuthi leplastiki eguquguqukayo iyawina ekukwazini ukuphinda isetshenziswe nasekusebenzeni kahle kokucubungula ngoba ingajovwa, ikhishwe, futhi incibilikiswe kabusha, ngokungafani nerabha ye-thermoset evutha ingakwazi ukubuyiselwa emuva. Uma iqhathaniswa ne-PVC, i-TPU inikeza ukuqina okukhulu, amandla okudabula, nokuthinta okuthambile ngaphandle kwesidingo sama-plasticizer, okubuye kuqede ukukhathazeka ngokudluliswa kwama-plasticizer nokuthobela imithetho yemvelo.

Ukuguquguquka kwezinto zepulasitiki ze-TPU kuye kwaqhubeza ukusetshenziswa kwazo emikhakheni eminingi ehlukahlukene, futhi umkhakha ngamunye usebenzisa inhlanganisela ehlukile yezakhiwo zale nto. Emkhakheni wezimoto, i-TPU isetshenziselwa ukukhiqiza izingxenye zokuhlobisa zangaphakathi, ama-gasket, amasistimu okuvala, izembozo zama-airbag, namafilimu okuvikela, lapho ukuguquguquka kwayo nokumelana nomthelela kuthuthukisa kokubili ukuphepha nokunethezeka kwabagibeli. Abakhiqizi bezimoto abaningi nabo basebenzisa le elastomer ye-polyurethane emajaketini ezintambo nasezingxenyeni ezingaphansi kwe-hood okumele zimelane nokushisa, uwoyela, nokudlidliza, futhi ikhono lale nto lokunamathela ngokuqinile kwezinye izipulasitiki ngesikhathi se-overmolding liyenza ibe umlingani omuhle kakhulu wemiklamo enezinto eziningi. Ukuze uthole ukubuka okujulile kokuthi i-TPU nezinye izipholima zisebenza kanjani embonini yezimoto, ungahlolaIzixazululo zezimoto ikhasi kuwebhusayithi ye-Mier.

Izigqoko zezinyawo ngokungangabazeki zingenye yezimakethe ezinkulu nezibonakalayo kakhulu ze-TPU, lapho zivela khona ezintendeni zezicathulo, ezithendeni, eziqeshini zeminwe, ezintanjeni, nasekuhlobiseni okungaphezulu. Ukumelana nokugqokwa okuphezulu kwale nto kuqinisekisa ukuthi izintende zihlala isikhathi eside ngisho noma zigqokwa kakhulu, kuyilapho ukunwebeka nokuthambisa kwayo kunikeza ukubuya kwamandla okufunwa abagijimi nabagqokayo abajwayelekile. Into ye-TPU yezicathulo nayo isebenza kahle kakhulu ngezinqubo zokujova okuqondile ezisetshenziswa ekukhiqizeni izicathulo zokusubatha, okuvumela abakhiqizi ukuthi bakhe izimo eziyinkimbinkimbi ezinokulinganiswa okunembile kokuqina, futhi ukumelana nokushibilika okuhle kwale nto kunomthelela ekuphepheni ezicathulweni zansuku zonke. Ngaphandle kwezicathulo, imboni yezinto zikagesi ezisetshenziswa abathengi incike kakhulu ku-TPU emakesini omakhalekhukhwini, emabhandeni amawashi ahlakaniphile, nasezembozweni zokuvikela, ngoba ihlanganisa ukuthintwa okuthambile nokuvikelwa ekuweni nokumelana nokuklwebheka; ungabona izibonelo ezengeziwe ku-Ikesi yocingo lwe-TPU ikhasi lokusebenzisa.

Abakhi bemishini yezokwelapha nabo baye bamukela izinto zepulasitiki ze-TPU ezidinga ukuhambelana nomzimba, ukuguquguquka, nokukwazi ukubulala amagciwane, okuhlanganisa amashubhu omthambo, ama-catheter, izinto zokugqoka amanxeba, kanye nemishini yokuqapha egqokwayo. Ngenxa yokuthi izinhlobo ze-TPU ezisekelwe ku-polyether zibonisa ukumelana okuhle noketshezi lomzimba nokubola, zigcina ukuqina kwazo kwemishini ngezikhathi ezinde zokufakwa nokuthintana, futhi ukubonakala kwale nto kuvumela ochwepheshe bezokwelapha ukuthi babone ukugeleza koketshezi ngaphakathi kwamashubhu nasezixhumanisini. Khonamanjalo, umkhakha wezimboni uncike ku-TPU kumahosha asindayo, amashubhu omoya, amabhande okuthutha, amabhande okushayela, amagiya, kanye nezivalo zamapayipi, konke lokhu okuzuzisa amandla ale nto okudabula nokumelana nesimo sezulu, futhiIzixazululo zemishini yezimboni ikhasi libonisa indlela i-Mier ehlinzeka ngayo ngezinto zokusetshenziswa kulezi zindawo ezidinga kakhulu. Izimpahla zabathengi, okuhlanganisa imichilo yemithwalo, amabhande ewashi, amakhiye, nezinto zezilwane ezifuywayo, ziqedela isithombe, zibonisa ukuthi amathuba obuhle be-TPU—acwebile, anemibala, angenalutho, noma acwebezelayo—avula amathuba angenamkhawulo okuklama imikhiqizo.

I-Mier Plastic Material Co., Ltd. yaseDongguan isungule ukuzinza njengomkhiqizi nochwepheshe wokuhlinzeka ngezinto zokusetshenziswa zepulasitiki ezisebenza kahle kakhulu, ngobuchwepheshe obuqongelelwe iminyaka eminingi namandla amakhulu okukhiqiza asebenzela amakhasimende emhlabeni wonke. Iphothifoliyo yemikhiqizo eyinhloko yenkampani ihlanganisa i-TPU, i-TPE/TPR, i-PA, i-PC, nezinto ze-PCR, futhi ithimba layo liyaqonda ukuthi umlingani othembekile wezinto zokusetshenziswa unomthelela oqondile ekhwalithini yomkhiqizo nasezinzuzweni. Kusukela ekuboniswaneni kokuqala kuze kube isiqondiso sangemva kokuthengisa, i-Mier izibeka njengomhlinzeki wezixazululo hhayi nje umthengisi, yingakho imikhiqizo eminingi esunguliwe nezinkampani ezisafufusa ezikhetha ukwakha ubudlelwano besikhathi eside nale nkampani. Ungafunda okwengeziwe ngomlando wenkampani namandla ayo okusebenza ku-Mayelana Nathi ikhasi.

Iqiniso lokuthi ikhwalithi iyisisekelo esiyinhloko emsebenzini we-Mier, futhi yonke ibatch yama-TPU granules idlula ekulawulweni kwekhwalithi okuqinile ukuze kuqinisekiswe ukuthi izakhiwo zomzimba zihlala zifana, ukufana kombala, kanye nokusebenza kokucubungula. Inkampani inesitifiketi se-ISO9001 futhi ijwayele ukuthumela imikhiqizo ekuhlolweni kwe-SGS, okunikeza amakhasimende ukuqinisekiswa okuzimele kokuthi izidingo zezinto ziyahlangabezana ngokunemba okuphindaphindekayo. Ukuthunyelwa ngakunye kuhamba nemibhalo ephelele, futhi imigqa yokukhiqiza yesimanje yefektri iyakwazi ukuletha ama-oda amaningi ngaphandle kokulahlekelwa ukunemba kobukhulu noma ikhwalithi yama-pellets, okubalulekile ezinqubweni ze-injection molding ne-extrusion ezizenzakalelayo. Ngaphezu kwalokho, i-Mier inikeza izinga elimangalisayo lokwenza ngendlela oyifunayo okuhlanganisa ukufanisa imibala ngendlela oyikhethayo, ububanzi obugcwele bokuqina kusukela ku-60A kuya ku-85D, kanye nosayizi abahlukahlukene bama-granules ukuze kuhambisane nezinhlelo ezithile zokondla kanye nezidingo zomthamo wokukhiqiza.

Uma kukhulunywa ngezimo zokuhweba, amanani ancintisanayo kaMier kanye nochungechunge lokunikezela oluzinzile kukwenza kube ukukhetha okukhangelayo emabhizinisini adinga ukuqikelela ekuthengeni izinto. Inkampani igcina ubudlelwano obuseduze nabahlinzeki bezinto zokusetshenziswa ezingaphezulu, okuyivumela ukuthi ilawule izindleko ngempumelelo futhi ivikele amakhasimende ekushintsheni kwemakethe, futhi inethiwekhi yayo yezindawo zokugcina izimpahla iqinisekisa ukuthi amazinga adumile ahlala ekhona ukuze kuthunyelwe ngokushesha. Ukusekelwa kwezobuchwepheshe kungenye insika enkulu yokuhlangenwe nakho kukaMier; onjiniyela bayatholakala ukusiza ekukhetheni amazinga, ukuxazulula izinkinga zokucubungula, kanye nokuthuthukiswa kwezicelo, futhi ithimba labelana ngolwazi ngenkuthalo nge-Izindaba izigaba zomkhakha kanye nezifundo zezimo. Izitifiketi ezifana nokuthobela kwe-RoHS ne-REACH kuqinisekisa ngokuqhubekayo ukuthi izinto ze-TPU zika-Mier zihlangabezana nezidingo eziqinile zemvelo nezokuphepha ezifunwa izimakethe zokuthumela emazweni angaphandle, okunikeza abaklami bemikhiqizo ukuthula kwengqondo lapho becacisa lezi zinto.

Ngaphambi kokungena emininingwaneni yobuchwepheshe bokucubungula nokucaciswa, kufanelekile ukufingqa izinzuzo eziyinhloko ezenza le polyurethane elastomer ibe ukukhetha okuphoqelelayo kubakhiqizi kuyo yonke imikhakha. I-TPU iletha ukuqina okukhethekile, ihlanganisa amandla aphezulu okudonsa nokunwebeka okumangalisayo, ukuze izingxenye zikwazi ukugoba nokuguquka ngaphandle kokuqhekeka noma ukudabuka ngisho nangaphansi komthwalo ophindaphindwayo wokujikeleza. Ukumelana nokugqokwa nokuklwebheka kwento kukhulisa isikhathi sokusebenza semikhiqizo eqediwe, kunciphisa izimangalo zewaranti futhi kuthuthukise isithunzi somkhiqizo, kanti ukumelana namakhemikhali nokumelana namafutha kuvula amathuba ezindaweni zezimoto, zezimboni, nezasolwandle lapho amapulasitiki amaningi ehluleka khona ngaphambi kwesikhathi. Ngaphezu kwalokho, i-TPU iyavuseleleka ngokugcwele njenge-thermoplastic, okwenza kube nokunciphisa imfucuza ngokugaya kabusha nokucubungula kabusha, okuhambisana nokugcizelela okukhulayo kwezinqubo zomnotho oyindilinga embonini yepulasitiki.

Kodwa into eluhlaza uqobo iyingxenye kuphela yesibalo, futhi umthengisi omkhethayo unomthelela oqondile ekufaneni komkhiqizo, izindleko, kanye nesivinini sokufika emakethe. I-Dongguan Mier iyahlukanisa ngobunzulu bokukhiqiza, ukuhlolwa kwekhwalithi kwangaphakathi, kanye nefilosofi yokubeka ikhasimende kuqala ephatha yonke i-oda njengobambiswano. Inkampani ihlinzeka ngokulandeleka okugcwele kusukela ezintweni ezingavuthiwe ezingenayo kuya kumagremu agcwele aphumayo, futhi ithimba layo elinobuchwepheshe elinamava lisiza amakhasimende ukugwema izinkinga ezivamile ezihlobene nokulawulwa komswakama, ukusethwa kwezinga lokushisa, kanye nokuklanywa kwesikhunta. Ngokuhlanganisa amanani ancintisanayo, ukuphendula okusheshayo, kanye nokunikezwa okuphindaphindwayo okuthembekile, i-Mier isiphenduke igama elithenjwayo elivela ohlwini lwabahlinzeki abagunyaziwe babakhiqizi emkhakheni wezimoto, ezobuchwepheshe, ezemidlalo, kanye nezokwelapha, futhi igalari yayo yokusetshenziswa ikhombisa imiphumela yangempela ezigabeni ezingaphezu kwamashumi amabili zemikhiqizo—ungabuka uhla olugcwele ku-Imikhiqizo ikhasi.

Ukuphumelela kokucubungula impahla ye-TPU kuqala kudala ngaphambi kokuba amabhola angene emshinini, ngoba umswakama uyimbangela evame kakhulu yokonakala ekucubungulweni kwalolu hlobo lwepolymer. I-TPU i-hygroscopic, okusho ukuthi imunca kalula umswakama emoyeni, futhi ngisho namanzi amancane agcinwe ngaphakathi ayahwamuka emazingeni okushisa okucubungula adale amabhamuza, imiklamo yokuhlukanisa, kanye nokuncipha kwezakhiwo zomshini engxenyeni eqediwe. Ukuze uthole imiphumela emihle kakhulu, izinhlayiya ze-TPU kufanele zomiswe kusetshenziswa umshini wokomisa onciphisa umswakama (dehumidifying dryer) emazingeni okushisa acishe abe ngu-80°C kuya ku-100°C isikhathi esingamahora amabili kuya kwamane, kuye ngohlobo nokuqukethwe komswakama ekuqaleni, futhi izinga lomswakama elihlosiwe kufanele lihlale lingaphansi kuka-0.02% kuya ku-0.05% ngaphambi kokucubungula. Uma amabhola omisiwe eshiywe evulekile emoyeni isikhathi esingaphezu kwehora, kufanele aphinde omiswe kunokuba kube nengozi yobuqotho bomkhiqizo obunjwe noma okhishwe nge-extrusion.

Izinga lokushisa lokucubungula i-TPU liyahlukahluka kuye ngezinga lobulukhuni, kodwa ububanzi obujwayelekile bokubhekisela kumazinga okushisa e-barrel ekujoweni nge-injection ngu-170°C kuya ku-220°C, kanti amazinga okushisa e-nozzle abekwa kancane kancane ukuze kuvinjelwe ukugingqika nokucisha. Izigaba ezithambile eziseduze no-60A ngokuvamile zicubungula emkhawulweni ophansi wobubanzi, kuyilapho izigaba ezinzima ezingaphezu kuka-70D zingadinga amazinga okushisa abheke emkhawulweni ophezulu ukuze kutholakale ukugeleza okufanele kokuncibilika nokugcwaliswa kwesikhunta. Amazinga okushisa esikhunta abalulekile ngokulinganayo futhi ngokuvamile agcinwa phakathi kuka-20°C no-50°C; izinga lokushisa lesikhunta elilawulwa kahle likhuthaza ukupholisa okufanayo, linciphisa izimpawu zokucwila, futhi lisiza ekutholeni ukuphela kwendawo okufiselekayo. Ezigabeni ezisekelwe ku-polyether ezinokuzinza okushisayo okuphansi, abacubunguli kufanele bagweme izikhathi ezinde kakhulu zokuhlala e-barrel, ngoba lokhu kungaholela ekucekeleni phansi ngenxa yokushisa, ukuguquka kombala, nokulahlekelwa ukunwebeka.

Ijubane lokujova nokucindezela kufanele kulinganiselwe ngokucophelela ukuze kugcwaliswe isikhala ngokuphelele ngaphandle kokudala ukukhanya, amabala okusha, noma ukushisa okweqile kokusika. Ijubane eliphakathi nendawo ukuya phezulu lokujova livame ukunconywa nge-TPU ngoba ukuncibilika kuqina ngokushesha, kodwa izingxenye ezinodonga oluncane kanye nezakhiwo eziyinkimbinkimbi zingadinga ukuhlelwa ngokucophelela ukuze kugwenywe ukungagcwali kahle. Ukucindezela kokupakisha kufanele kube ngokwanele ukunxephezela ukuncipha kwezinto ezisemgudwini, ngokuvamile kusukela ku-30 kuya ku-80 MPa, futhi isikhathi sokubamba kufanele sikhethwe ukuze kuvunyelwe ukuthi isango liqine kahle. Ezinqubweni zokukhipha, ukwakheka kwesikulufu kubalulekile; isikulufu sokucindezela esikancane esinomlinganiselo wobude nobubanzi okungenani 24:1 sisiza ukuncibilikisa i-TPU ngokufanayo, futhi izinga lokushisa le-die kufanele lihambisane kakhulu nezinga lokushisa lokuncibilika ukuze kutholakale indawo ebushelelezi nobukhulu obunembile. Ukupholisa ngokuvamile kwenziwa ngebhafu lamanzi, futhi ijubane lokukhipha kufanele lihambisane nomphumela wesikulufu ukuze kugwenywe ukudonsa phansi noma ukuhluka kobubanzi.

Ukwakheka kwesikhunta (mold design) kunendima enkulu ekuphumeleleni kokucubungula kwe-TPU, futhi kunezici ezimbalwa ezidinga ukunakwa okukhethekile. Ukuncipha kwe-TPU ngokuvamile kuphezulu kunokwezinto zokwakha ezijwayelekile, kusukela ku-0.3% kuya ku-1.2% kuye ngohlobo, ubukhulu bengxenye, nezimo zokucubungula, ngakho ubukhulu bomgodi (cavity) kumele buklanywe ngokucabangela lokhu. Amasango (gates) kumele abe nosayizi omkhulu ukuze kwehliswe ukwehla komfutho (pressure drop) futhi kugwenywe ukuqina ngaphambi kwesikhathi, futhi indawo yesango kumele inciphise imigqa yokuhlangana (weld lines) ezindaweni ezingaphansi kwengcindezi ephezulu. Ukuphefumula okwanele kubalulekile ngoba umoya obhajwe ngaphakathi ungabangela amabala okusha ezingxenyeni ze-TPU ezikhanyayo noma ezinombala okhanyayo, futhi i-draft angle ezindongeni eziseceleni kumele yanele ukuze kukhishwe kalula ngaphandle kokunamathela. Izinkinga ezivamile zihlanganisa imibala yokufafaza (splay marks) ngenxa yomswakama, izimpawu zokucwila (sink marks) ngenxa yokungacindezeli kahle, ukuvuza (flash) ngenxa yamandla amaningi okubamba kuhlanganiswe nokushisa okuphezulu kokuncibilika, kanye nemigqa yokufa (die lines) ekukhipheni (extrusion) ebangelwa izinsalela emlonyeni wesikhunta—konke lokhu kungaxazululeka ngokuhlelekile ngokulungisa izimiso zokucubungula ezishiwo ngenhla.

Ukukhetha ucwaningo olufanele lwe-TPU kuqala ngokuqonda ububanzi bokuqina kanye nezakhiwo zomshini ezichaza lo mndeni wezinto, futhi i-TPU ihlanganisa ububanzi obukhulu kusukela kuma-elastomer athambile kakhulu kuya kuma-thermoplastics okuqina kwezobunjiniyela. Amazinga ajwayelekile e-TPU atholakala ngamanani obulukhuni be-Shore asukela cishe ku-60A kuya ku-85D, futhi ukukhuphuka ngakunye kumelela ushintsho olubalulekile ekuqineni, ekuguquguqukeni, nasekukwazini ukuthwala umthwalo. Ubuningi be-TPU ngokuvamile buphakathi kuka-1.10 no-1.30 g/cm³, kuye ngokwakheka okuthile kanye nezithako ezisetshenzisiwe, futhi iphuzu lokuncibilika liyahlukahluka kusukela cishe ku-150°C kuya ku-210°C kumazinga ahlukene. Amandla okudonsa ngokuvamile awela phakathi kuka-20 no-60 MPa kumazinga enjongo ejwayelekile, kuyilapho ukunwebeka lapho kugqekezwa khona kungasukela ku-300% kuya ku-700%, okunikeza abaklami kokubili amandla nokunwebeka entweni eyodwa.

Ngale kwalezi zindinganiso eziyisisekelo zobunjiniyela, i-TPU itholakala ezigabeni ezimbalwa ezikhethekile ezibhekana nezidingo zezicelo ezithile. Izigaba ze-TPU ezisobala ziyaziswa kwezobuchwepheshe bezabathengi, imishini yezokwelapha, kanye nezinsiza zemfashini ngenxa yokucaca okubonakalayo nokukwazi ukukhiqiza izingxenye ezicwebezelayo ezinobuhle obuphezulu. Izigaba ze-TPU ezivimbela umlilo zihlanganisa amasistimu ezigcwalisi ezithola izilinganiso ze-UL94 V0, okwenza zifaneleke embozweni yezintambo, izixhumi, kanye nezingxenye zangaphakathi ezintweni zikagesi lapho ukuphepha komlilo kuyimpoqo. Izigaba ze-TPU eziqiniswe ngengilazi zihlanganisa ukunwebeka kwepholima eyisisekelo nokuqina okuthuthukiswe kakhulu, ukuzinza kobukhulu, kanye nezinga lokushisa lokuguquka, okuvumela into ukuthi iqhudelane namapulasitiki obunjiniyela ezicelweni zesakhiwo. Ukwengeza, izigaba ze-polyether eziqiniswe nge-UV nezimelana nokubola ngamanzi zivame ukukhethwa ezintamboni zangaphandle, izingxenye zasolwandle, kanye nezicelo zamandla elanga lapho ukusebenza kwesikhathi eside esimweni sezulu kuyisici esiyinhloko sokuklama.

Ithebula elilandelayo libonisa ububanzi bezakhiwo ezijwayelekile zamabanga amele i-TPU, okunikeza ireferensi esebenzayo yokukhetha izinto zokuqala; kodwa-ke, ukuqinisekiswa kokugcina kufanele kwenziwe ngaso sonke isikhathi ngebanga langempela kanye neshidi ledatha yomhlinzeki.

Mier uhlinzeka ngama-TPU granules afana nalezi zici zempahla kulo lonke uhla lokuqina, futhi ithimba lobuchwepheshe lingasiza amakhasimende ukuthi bahlobanise izidingo zokusebenza nezinga elingabiza kakhulu. Noma ngabe isidingo siwubhande wewashi ocacile, oguquguqukayo, igiya eliqinile elihlanganiswe nengilazi, noma ijazi lekhebula elivimbela umlilo, iphothifoliyo yenkampani yakhelwe ukuhlanganisa izidingo ezahlukahlukene. I-imikhiqizo ye-TPU ekhombisayo inikeza umbono obonakalayo wezicelo ezimele, kuyilapho amakhasi ezixazululo ezinikezelwe ehlanganisa imikhakha ekhethekile efana nezokwelapha, izimoto, nezokusebenza kwezimboni.

Ukuze kuboniswe ukuthi izinqumo zokucaciswa zenziwa kanjani ekusebenziseni, cabanga ngenselelo yokukhetha ibanga le-TPU legasket elenziwe ngezifiso elisetshenziswa emhlanganweni we-hydraulic. I-gasket kumele ivale ukuhlangana okubhekana nokudlidliza nokunyakaza okuncane okuyimijikelezo, okudinga ukumelana okuhle kakhulu nokucindezelwa ukuze kugcinwe amandla okuvala ngokuhamba kwesikhathi, kuhlanganiswe nokunwebeka okwanele ukuze kumelwe nokungalingani kwendawo. Kulesi simo, i-TPU esekelwe ku-polyester enobulukhuni obumaphakathi cishe ku-85A kuya ku-92A ivame ukunconywa, ngoba inikeza ukuguquguquka okudingekayo kokuvala kuyilapho inikeza ukuqina kwesakhiwo okudingekayo ukumelana nokucindezelwa ngaphansi kwengcindezi. Unjiniyela wokuklama kufanele futhi aqinisekise ukuthi ibanga elikhethiwe libonisa ukucindezelwa okuphansi ezingeni lokushisa lokusebenza, ngoba igasket elahlekelwa ukubuyisela kwalo ekugcineni liyavuza futhi libangele ukuphazamiseka komsebenzi.

Njengoba isibonelo sesibili, cabanga ngentambo yangaphandle okumelwe iphile iminyaka eminingi ilanga eliqondile, imvula, nokushintshashintsha kwezinga lokushisa ngaphandle kokuqhekeka noma ukulahlekelwa ukuguquguquka. Ukukhethwa kwezinto lapha kubeka phambili ukumelana nesimo sezulu nokumelana ne-hydrolysis kunamandla angavuthiwe emishini, okukhomba ngokucacile ezingeni le-polyether-based TPU elakhiwe ngama-UV stabilizers. I-Polyether TPU imelana nemiphumela ecekela phansi yomswakama nokuhlaselwa amagciwane kangcono kune-polyester equivalents, futhi i-UV stabilization ivimbela ukukhanya kwesikhumba nokuqina okubangelwa imisebe yelanga. Ukuqina okucishe kube ngu-85A kuya ku-95A kunikeza ibhalansi enhle yokuguquguquka ukuze kuphathwe ngesikhathi sokufaka nokuqina ukuze kuvikelwe ukugqokwa kwamatshe, ukhonkolo, nemiphetho yamanhole. Umkhiqizi wentambo kufanele futhi acabangele izinhlobo ezivimbela amalangabi uma ukufakwa kudlula ezingxenyeni zezakhiwo, futhi ithimba likaMier lingahlinzeka ngezinga elanelisa kokubili ukucaciswa kwesimo sezulu nokuphepha komlilo.

Isibonelo sesithathu, cabanga ngomkhiqizi wezicathulo owenza i-outsole yezicathulo zokusubatha okufanele inikeze ukubamba okukhethekile ezindaweni ezimanzi kuyilapho imelana nokugqokwa emakhulwini amamayela okugijima. Into ye-outsole idinga ubulukhuni obumaphakathi obusukela ku-65A kuya ku-75A ukuze kumuncwe ukushaqeka nokumelana nokushelela, kodwa futhi idinga amandla aphezulu okudabula ukuze izinto ezibukhali noma indawo emihlubulo ingabangeli ukwehluleka okubi. I-TPU esekelwe ku-polyester enokwakheka okuqinisiwe iletha ukumelana nokugqokwa okubalulekile ukuze i-tread ihlale isebenza isikhathi eside, futhi ukumelana nokushelela kwemvelo kwento kungathuthukiswa ngokwengeziwe ngomklamo wephethini ye-tread nokwenziwa kobuso obunokuthungwa. Izindleko nazo ziyisici kulesi sisetshenziswa esinomthamo omkhulu, futhi umkhiqizi angasebenzisana noMier ukuze akhethe izinga elonga imali elihlangabezana namazinga okusebenza ngaphandle kokukhokhela izici ezingadingekile njengokucaca noma ukumelana nomlilo. Le ndlela elinganiselayo yokucacisa, ekala ukusebenza ngokumelene nentengo nomthamo, iwumhlahlandlela oyinhloko iqembu lezobuchwepheshe likaMier elinikeza lona kukho konke.Xhumana Nathi umbuzo.

I-TPU plastic material imi njengenye yamapholima aguquguqukayo nokwethembeka kakhulu atholakala kubakhiqizi banamuhla, inikeza inhlanganisela yokunwebeka, ukuqina, ukumelana nokugqokwa, nokuzinza kwamakhemikhali okusekela ubusha emkhakheni wezimoto, ezokwelapha, ezimbonini, izimpahla zabathengi, nangale kwalokho. Lo mhlahlandlela udlule esakhiweni esiyisisekelo nezakhiwo ze-thermoplastic polyurethane, uhlole izinkambu zayo ezinkulu zokusetshenziswa, uchaze imingcele yokucubungula eqinisekisa ukukhiqizwa okungenasici, futhi wabonisa ububanzi bokucaciswa obuqondisa ukukhethwa kwezinto. Kusukela kumamaki athambile afana nejeli okwenzela ukuthambisa, kuya kumakhemikhali aqinile, aqiniswe ngengilazi okwenzela izingxenye zesakhiwo, i-TPU inikeza isixazululo cishe kuzo zonke izidingo zepulasitiki eguquguqukayo, futhi ukukwazi ukuphinda isetshenziswe kwengeza ubukhulu bemvelo obuya bubaluleka kakhulu kubakhiqizi nabalawuli ngokufanayo.

Ukukhetha umthengisi ofanele kubaluleke njengokukhetha igreyidi efanele, futhi i-Dongguan Mier Plastic Material Co., Ltd. iletha ulwazi lokukhiqiza, ukulawulwa kwekhwalithi okuqinile, ukwenza ngendlela oyifisayo okuguquguqukayo, kanye nesevisi yezobuchwepheshe ephendula ngokushesha kubambiswano ngalunye. Ngokuqinisekiswa kwe-ISO9001, ukuhlolwa kwe-SGS, ukuthobela imithetho ye-RoHS ne-REACH, kanye nephothifoliyo ebanzi ehlanganisa izinto ze-TPU, TPE/TPR, PA, PC, kanye ne-PCR, i-Mier ikulungele ukusekela kokubili ama-oda ajwayelekile nokuthuthukiswa kwezicelo eziyinkimbinkimbi. Umthamo wokukhiqiza wenkampani kanye nesu lokugcina impahla kuqinisekisa ukuqina kokunikezwa, kuyilapho ithimba layo lobunjiniyela lisiza amakhasimende ukuthi athuthukise izimo zokucubungula futhi agweme ukuzama nokwenza amaphutha okubizayo. Noma ngabe uthuthukisa umkhiqizo omusha noma ufuna umthombo onokwethenjelwa kakhulu walokho okukhona, ukuhlola i-Ikhaya ikhasi kanye nomtapo wezincwadi wokusetshenziswa komkhiqizo kuyindawo enhle kakhulu yokuqala.

Isenzo sokugcina sicacile: xhumana noMier namuhla ukuze ucele isilinganiso, uxoxe ngohlelo lwakho, noma ucele amasampula ezigaba ezithile ze-TPU. Ithimba likulungele ukunikeza imibhalo, amashidi edatha yezobuchwepheshe, nezeluleko ezingokoqobo eziqhubekisela phambili iphrojekthi yakho ngokuzethemba. Emakethe lapho ikhwalithi yezinto nokuthembeka kokunikezwa kuthinta ngqo inzuzo yakho, ukusebenzisana nomhlinzeki onolwazi noqinisekisiwe kwenza umehluko omkhulu. Xhumana noMier futhi uthole ukuthi izixazululo zabo zezinto ze-TPU zingayithuthukisa kanjani ukusebenza komkhiqizo wakho futhi ziqinise inzuzo yakho yokuncintisana.