Yiziphi izinkuni ze-polyurethane zetshe lokufakelwa. Ukubunjwa kwe-polyurethane ngesandla

Amatshe angokwemvelo yinto ebalulekile yokuhlobisa ingaphakathi. Nokho, intengo yayo iphezulu. Amatshe afanelekayo okwenziwa ngokufanayo kumuntu ovamile kuningi lamacala awunakuqhathaniswa nemikhiqizo yemvelo. Ngesikhathi esifanayo, kubiza kancane, kunciphisa futhi kungaba nokuhlukahluka okuhlukahlukene. Ama-molds wamanje we-polyurethane nobuchwepheshe bombala omusha bangenza ukukhonta okuvamile noma i-gypsum ibe yinto ekhethekile, ukubukeka kanye nekhwalithi, cishe engaphansi komkhiqizo wemvelo.

Izinto zokubunjwa

Ukuze kwenziwe ukubunjwa kwekhwalithi okungabonisa ngokunembile ukubunjwa kwempahla yemvelo, ama-polyurethane rubbers asetshenziswe. Le ndaba eyingqayizivele ibonakala ngokugqoka, ukuqina, ukumelana nokubola, ukumelana nemithwalo ephawulekayo yemishini.

Ukubunjwa kwe-Polyurethane kukhishwa ukupholisa okubandayo. Izinto eziwusizo zamafomu zakhiwa ngamakhemikhali amabili e-polyurethane. Naphezu kokubonakala okulula kwenqubo yezobuchwepheshe, kuthatha ulwazi oluthe xaxa ekwenzeni amatrices, ngoba ikhwalithi incike ekumeni komkhiqizo ophelile.

Izindleko zefomu eliqediwe ngezinye izikhathi lidlula izindleko zemishini eluhlaza yokwenza umthamo. Ifomu elenziwe kahle liyakwazi ukukopisha ngokunemba okukhulu ngisho nokushicilelwa kwezinwele zomuntu ekubunjweni.

Abakhiqizi be-polyurethane

Kuze kube manje, umhlaba uveza izinhlanganisela ezingaphezu kwamakhulu amabili e-polyurethane. Ukuze kusetshenziswe itshe lokufakelwa, ukubunjwa kuyadingeka okuhlanganisa ukulingana okunamandla, amandla, ukuqina nokwenza ukuvumelana.

Ama-compounds amabili e-Ecomould ane-medium flow (ukuhambisana kohlobo lwamanzi kagesi), afanele ukukhiqizwa kwamatshe okufakelwa ngezingxube ezincane ezingalungile. Amakhemikhali angabizi futhi anelungelo lemikhiqizo encane yokukhonkisana ngokukhululeka okulula.

Ama-Polyurethanes avela ku-VytaFlex Series abhekwa ukuqina okukhulu, ukumelana okuhle kokugqoka, ukukhetha okunamandla ngezici zamandla. Ukusetshenziswa kwama-matrices avela kumakhemikhali anjalo kwenza inqubo yokwenza imikhiqizo ilula futhi iyashesha ngaphandle kokusetshenziswa kokuhlukanisa izidakamizwa.

Ukubunjwa kwe-Polyurethane kusuka ku-Duramould ne-LEPTA-108 CX okuhlanganiswayo kufanelekile kwe-gypsum castings, futhi balwa nemidiya e-alkaline yekhonkri, bayashintsha ukuze benze ukubunjwa okubunjwa ngaphandle kokusetshenziswa kwe-vacuum degassing.

Izinzuzo ze-polyurethane molds

Ukubunjwa kwe-polyurethane ngamatshe okufakelwa kunamathuba amaningi. Ngenxa yokweqa kwabo, benza kube lula ukukhipha ama-castings aqediwe ngemikhiqizo encane yokudoba. Uma kuqhathaniswa namafomu epulasitiki, imikhiqizo yokhonkolo emafomeni ahlanganisiwe ingagcinwa isigamu sesikhathi.

Ngenxa yokwaziswa okucacile kwesobuso ebusweni besampula esilotshiwe, kungenzeka ukufezekisa ukufaniswa komkhiqizo oqediwe nokuthungwa kwamagxolo ezihlahla, amathambo afakwe , i-antique fresco nezinye izinto. Amafomu aqinile, ngisho nemodi yokukhiqiza enamandla, isici sabo sokuphepha sanele iminyaka engu-2 - 3 yokusebenza.

Ungakwazi ukwandisa ububanzi bemikhiqizo, usebenzisa njengezinto eziwusizo ze-concretes ne-gypsum eguquliwe. Ikhono le-polyurethane lokugcina izinhlayiya zedayi ebusweni besikhunta lihlanganisa inqubo yokudweba ngokukhipha i-matrix ngempahla yokubunjwa.

Ukukhetha ifomu

I-Polyurethane yinto engenasisekelo. Ukuze uqinisekise ikhwalithi yesikhunta kusuka kulolu lwazi, udinga ulwazi olwengeziwe ekukhiqizeni amatrices, udinga futhi ukwazi ubuqili benkambiso, ugcine izinqubo zokupholisa, futhi usebenzise amakhemikhali avezwe avela kubakhiqizi abahamba phambili be-polyurethanes ezibunjiwe.

Okukhethayo - ukuthenga i-matrix eyenziwe ngomumo noma ukuzakhela wena - kuxhomeke ezicini eziningi. Ukwenza amapulisi e-polyurethane ephelele ngamatshe ekhaya ngaphandle kokuhlangenwe nakho kunzima kakhulu. Njengoba izinto ezibonakalayo zingabi eshibhile, kungcono ukuthi ungazami, kodwa ukuthenga i-matrix eyenziwe ngomumo. Lolu khetho lufanelekile, uma kukhona ukuzethemba emisebenzini yabakhiqizi.

Ngakolunye uhlangothi, ukwenza isikhunta ngokuzimela, ngesikhathi esifanele kungenzeka ukuba uthole ulwazi oludingekile futhi akuxhomeke ekuhloliseni okukhona kwemikhiqizo eqedile, kodwa kulula ukuyandisa ngokukhiqiza izinhlobo ezintsha zokuqedela okungekho abancintisana nabo.

Ukukhiqizwa kwe-matrix ngezandla zomuntu siqu

Ukuze wenze ukubunjwa kwe-polyurethane ngezandla zakho siqu, udinga itshe lokufakelwa noma amasampula wempahla yemvelo kanye ne-polyurethane eyakhiwe ngamakhi amabili. Ukukhiqiza ifreyimu, kuyadingeka ukuthi ulungise ucezu oluqondile lwe -MDF noma i-chipboard ngokulingana nobukhulu besikhunta nobude bamabhodi wendawo.

Phezu kweplate ene-sanitary silicone ifakwe amasampuli amatshe aqoshiwe. Ibanga eliphakathi kwabo nakubasampuli kuya ezindongeni eziseceleni akumele libe ngaphansi kwesentimitha esisodwa. Ngaphezu kwalokho, amafomu ahlanganiswe kusuka ebhodi. Amalunga wefreyimu afakwe uphawu nge-silicone. Amasampula kanye namafomu aphethwe nge-agent ekhululiwe.

I-polyurethane ilungiswa ngale ndlela elandelayo: izingxenye zilinganiswa ngeziqukathi ezihlukene ngokulandela imiyalelo futhi zixutshwe ngaphandle kokuqhwaza kuze kube yilapho zihambelana ne-speed-speed drill ne-nozzle. Isixazululo esiphelile sithululwa phezu kwama-sampuli ngaphezulu kwezinga lamatshe ngo-1 kuya ku-3 cm. Ngemva kokuxazulula amahora angu-24, amafomu ahlanganisiwe, amasampuli akhishwa esikhunjini futhi isikhathi esifanele ukuba inqubo ivunyelwe ukuxazulula.

Amafomu okukhiqizwa kwezimboni

Ukuze uhlele ukukhiqizwa kwezimboni zamafomu wazama kaningi, kodwa ukubunzima kokuveza ubuso bezinto ezikopishiwe kwakungenzi umzamo omkhulu. Yize kunjalo, ukukhiqizwa kwamatshe okubunjwa kwamatshe okwenziwa ngamathuluzi emishini kwakhiwe.

Inqubo enjalo yezobuchwepheshe yayiqondiswe yi nkampani yeZikam Stone. Izibumbulu ze-polyurethane ezikhiqizwa ubuchwepheshe bayo ziyingxenye yesigamu sezindleko zamatrices afanayo. Ezinye izici zesikhunta ngisho nokudlula amasampula avela kubakhiqizi abahamba phambili abasebenzisa inqubo ye-polymerization ebandayo.

Izibhamu ezenziwe ngomshini zibhekwa ngokugxila emhlane ngemuva (okubi). Ukubunjwa kwesikhunta njalo kungabhalwa kuphela ezindaweni zangaphambili noma ezihlangothini.

Ukukhetha iMatrix efanele

Uma kunqunywe ukuthenga izimboni ze-polyurethane zezimboni ekukhiqizeni itshe lokufakelwa, ukunakwa okukhethekile kufanele kukhokhwe eceleni. Kumatrix ofanele, kufanele kube bushelelezi ngaphandle porosity kancane.

Ukuba khona kwamathrekhi avela emoyeni ophumayo kuzokhombisa ukugcwala kwomoya kobukhulu be-matrix. Leli fomu ngeke lihlale isikhathi eside. Ukuze unqume amandla, ungazama ukuchofoza ucezu lwezinto ezivela ku-matrix - i-polyurethane yekhwalithi izokwenqaba ngokuqinile lokhu. Umqhekeko omncane owenziwe omncane wesampula we-matrix ngaphansi kwengcindezi ugcwele umzamo.

Kunengqondo ukuthenga i-matrix ukuze ugxile ekuvivinyweni ukugcwalisa ukutholakala kokudayiswa okusheshayo komthengisi. I-specimen ye-cast kufanele ibe nokukhululeka okucacile kwamatshe angokwemvelo ngaphandle kokubushelela okucwebezelayo kanye nesicwebezelisi. Amabhuloho anamandla angadingekile namagceke (kuze kufinyelele ku-3 kuya ku-5 cm) azokhombisa ukufaka endaweni ye-polyurethane enezinto ezifanayo ezinempahla efanayo.

I-Polyurethane isikhunta esivela ku- "Zikam Stone"

Umzila wendlela yokugcoba ngamatshe, ukulingisa imabula, i-limestone, i-sandstone, ukwakheka kwe-slate, izitini zokuhlobisa nezitini - konke lokhu kungenzeka ngebuchwepheshe be "Zekam Stone." Ukubunjwa kwe-polyurethane eyenziwe yizinkampani zalolu nkampani kuhle ukukhiqizwa kwamatshe okufakelwa esekelwe kumakhemikhali. Kusukela ku-gypsum kungenzeka ukwenza u-stucco wokuqala wokubunjwa, i-mosaic, i-moldings ne-bas-reliefs.

Kulabo abafuna ukuzama isandla sabo ekwenzeni itshe lobuciko, i-Zikam Stone inikeza izinto zokwakha ekhaya ze-polyurethane matrices. Izitshalo zeklasi zomnotho ziyatholakala, ngaphezu kokubunjwa okuyisisekelo okubunjwa kwe-polyurethane, imiyalelo eningiliziwe yenqubo, izithasiselo eziguquguqukayo kanye nezingulube ze-gypsum. Imishini yeklasi "Standard", ngaphezu kwalezi zinto ezibalwe, nayo isampuli yokudweba kanye nemishini yokwengeza eyengeziwe. Iphakheji le- "Premium" lihlanganisa futhi i-airbrush ne-matrix pallets.

Imiklamo ye-polyurethane ephakeme kakhulu "iZikam" ngisho nasesebenzini elincane elizimele yenza kube lula ukukhiqizwa kwetshe lokufakelwa. Ngemikhiqizo efanele yemikhiqizo namanani alinganisiwe, ibhizinisi elinjalo lingancintisana ngisho nokukhiqizwa kwefektri.