Silicone kwakwakhe for isikhunta making: ezibekiweko lobuchwepheshe

Silicone kwakwakhe kuyinto impahla ekahle womshini isikhunta izinsalela zamathambo Lifecasting nezinye izinto kanzima. Njengoba latex ketshezi, inikeza i lula, nezimo, okusezingeni eliphezulu zibonise ukwethembeka ukuma. Futhi-ke kunezinzuzo eyengeziwe - a lifetime eside futhi ukumelana namakhemikhali kanye noqhekeko. Lona impahla Kunconywa ukwenziwa amafomu nehlala njalo amasampuli ezibucayi. Silicone isikhunta ukuze olukhonkiwe zingenziwa ngesikhathi esingaphansi isikhunta latex, uma usebenzisa yelikhono "fast". I ethile kuphela ukuthi kuyabiza ngaphezu latex, hhayi ngakho nokunwebeka, okuholela ukudabuka kanye umonakalo.

Ukubunjwa Silicone Material

Lokhu kwaziswa siqukethe Silicon unamathisele njengoba base futhi kulethe-platinum, okuyinto ngesivinini ukuqina.

Lapho edala amafomu usebenzisa abicah kwakwakhe imibala ezicacile, obomvu, ophuzi, white kanye nezinye. I hardener lungase futhi ludinge Iphalethi ehlukile noma kube kungekho nto enemibala emihle.

Ngemva ukuxuba yezingxenye ezimbili ekamelweni lokushisa abicah Ukwakheka iqine futhi iba ukubukeka rubbery. Isilinganiso sokwelapha isikhathi iningi - phakathi amahora 18-24, kodwa isikhathi lukhuni kungenziwa kakhulu ziyancipha ngokusebenzisa ephezulu ukusebenza catalysts.

Izinhlobo abicah compounds

Zezakhi iraba ezivamile ezisetshenziswa emasimini ukukhiqiza ukudla isikhunta - lokhu RTV, RTV-2 kanye HTV. Ngokungafani iraba RTV (Igumbi lokushisa vulcanizing) abicah HTV kudinga izimo solidification lokushisa esingeqile 100 ° C.

Phakathi kwalabo ukukhiqiza abicah kwakwakhe, wonke umuntu uzama ukwenza okuningi silicones futhi ekwenyuseni nge viscosity ezahlukene, umbala kanye nezinye izici.

Kukhona izigaba ezimbili eyinhloko RTV-silicones

1. Tin catalyzed silicones.

2. Silicones ku-platinum yelikhono.

Ngamunye wabo kunezinzuzo zako kanye nebubi. silicones Tin-catalyzed ngokuvamile eshibhile futhi kulula ukuyisebenzisa. Banezinhliziyo viscosity kusuka ongaphakeme kuya medium, ngakho ukugeleza umkhiqizo emhlabeni kahle. Ngokuphambene, i-platinum ukuyiveza compounds eziningi ezitholakala emvelweni, ikakhulukazi nesibabule, ithini ama, i-polyester esanda ekhiqizwa, epoxy noma urethane iraba izihloko. Ngisho nangemva kwalolo ngwengwezi sihloko acrylic lacquer abicah kwakwakhe ukwakha-platinum-Uqinisa ebukhoneni isibabule ukuphendula evele tinny. Lokhu kwenza kwabo engafanele izinto eziningi zemvelo. Noma kunjalo, ngemva lukhuni, banayo aphakeme zamakhemikhali, microbiological kanye nekhono ukushisa ukumelana, futhi ngokuvamile uvumelana nezimo iminyaka eminingi. Ngokuphambene, silicones tin-catalyzed bathambekele abe ziyaqothuka ngemva kweminyaka embalwa ukusetshenziswa futhi baqala ukuhlukanisa noma izinyembezi. Ngenxa yalezi zizathu, silicones tin iqembu avame ukusetshenziswa ukusebenza Ivolumu ephansi ekusakazeni. Futhi-platinum isetshenziselwa umsebenzi obalulekile, ikakhulukazi izinto eziningi ezinkulu.

isikhathi isitoreji

silicones Abaningi ingasetshenziswa ngempumelelo iminyaka engu-5 kusukela osukwini othenge uma elondolozwe kahle e ziqukathi endaweni epholile, indawo eyomile. Nokho yelikhono ulahlekelwa amandla ngokushesha, ngisho nalapho elondolozwe kahle, kungcono kusetshenziswe ungakapheli nonyaka.

lapho ukusebenzisa

Silicone RTV-2 kwakwakhe esetshenziswa ukwenziwa amakhophi eziningi imifanekiso. Futhi wena imikhiqizo ye-polyester, epoxy inhlaka, emakhilayoni, usimende, amakhandlela, amathoyizi, insipho, njll

Silicone kwakwakhe "Pentelast" ingukudla futhi iphephile. Buhle le nto ukuthi kuba nezimo kakhulu futhi ngeke kuyilimaze umkhiqizo ngesikhathi ukususwa, isikhunta ezinjalo iraba ingasetshenziswa ngokuphindaphindiwe. Njengoba sazi ukuthi lokhu abicah ukudla ebangeni nge kulethe-platinum, naso ungenza abicah isikhunta for usimende isikhunta ukuze amakhekhe muffins, amakhekhe kanye neminye imikhiqizo confectionery.

Ukuphepha Note

Egcekeni abicah kuyinto umkhiqizo ephephile ayinaphunga kuqhathaniswa uma isetshenziswe ngendlela efanele, kodwa yelikhono futhi thickeners zingase zibe nobuthi obuyingozi ethandekayo emehlweni futhi isikhumba, Nokho, lezi zitho zomzimba kufanele livikelwe.

Inqubo ekudaleni isikhunta

• Surface ikopishwe isampuli ukugeza degreased. Uma kudingekile, igrisi esetshenziswa wax, isixazululo insipho noma petrolatum.

• Indaba kahle exubile, ngoba zingase akha kwenze ngesikhatsi isitoreji.

• isiqukathi Oku-ukulungele kulo base yokuvelayo. Ngakho isitsha kungaba inkomishi plastic, ngokuthi utholakala ngebhodlela noma ibhokisi. Kufanele libe phansi kuqhathaniswa iqonde futhi izinhlangothi ngaphandle imifantu nezimbobo.

• Ngo okuhlanzekile esitsheni buhlanjululwe isisekelo futhi hardener kuze mass homogeneous.

• Ukuze ukulinganisa inani abicah edingekayo, udinga ukubala ivolumu wathela, ukuze umkhiqizo iye ihlanganiswa ngokuphelele. Enye - ungavele beyomboza umkhiqizo kanye izimbobo futhi izimbobo emazinyweni, ngemva ukuqina abicah ugcwalise ezinye ingxenye, kulesi simo abicah futhi imali. Ukuze nombala ukumboza isifanekiso, kuyinto efiselekayo ukuthulula abicah noma isicelo lamaqembu amabili noma ngaphezulu. Iqembu lesibili lufakwa phezulu eqina lokuqala, kodwa namanje okunamathelayo. Ungasebenzisa futhi gauze noma ezinye izinto yokugcizelela ukuba kugxiliswe phakathi laphakathi, okuyinto eyenza ukukhiqiza uhlobo okuqinile.

• I yelikhono abangu elixutshwe ngezabelo kuncike hlobo abicah. Ezinye zazo zisebenzisa isisekelo ukuba kulethe ratio 50:50. Govuza kungaba athutha noma ngesandla ngesipuni noma induku. Umuntu angeke alithole ahileleke eside le nqubo akuyona imizuzu engaphezu kuka-2 hushazela njengoba inqubo ukhiqiza eziningi air Bubbles in ingxube. Ukuze ukwazi ukuthi ukungaguquguquki iyunifomu kuholele, kangcono ukuthatha hardener umbala.

• Ngemva sibhebhezela ingxube kuthululwe ngokushesha ngangokunokwenzeka. Indaba uphulukisa esimweni rubbery emahoreni angu-24. Emazingeni ngezansi +23 ° C kulungiselelwa isikhathi kuyoba isikhathi eside.

Yini okudingeka uyicabangele

Air Bubbles zingancishiswa lutho, uma ukuqala ukuxubana encane Izingxube ingxenye nokusebenzisa ibhulashi, isampuli ukufihla. Ngakho, ukukhanselwa kufinyelelwa Bubbles hhayi kuphela kodwa futhi ngokucacile ukuma uhlaka. Ngemva nokufaka ungqimba ezondile umkhiqizo ukuhamba ngo ukuphumula ekamelweni lokushisa kuze, kuze kube uqweqwe ukhululekile emoyeni futhi ngeke lukhuni. Khona-ke uhlanganise ingxenye esele okuvela kuyo le hardener sizindza futhi zibekwe izingqimba phezu imikhiqizo ukuma esiphelele. Ngaphansi kwezimo zelabhorathri, loluhlelo lube lula, njengoba kwenziwa ngosizo imishini ukuthi nithintithe isikhunta wathela nokukhululwa emoyeni. Ezimweni komhlaba okunyakaziswayo, self evunyelwe ebusweni.

Uma isampula alinaso imingcele zemvelo ukuvimbela ekusakazekeni kwezindaba abicah ngesikhathi ethela, kuyodingeka ukwakha udonga emvula emhlabeni isampula. Lokhu kungenziwa ngokusebenzisa noma iyiphi impahla inert ezinjengokhuni kwamapulangwe, amabhodi, amakhadibhodi, njll Bahlanganise unamathelise odongeni ikani esebenzisa ingcina tape kuya abicah singenalo angena ngokusebenzisa umqhewu.

Isexwayiso! Izinhlobo ezithile abicah kungenzeka kancane ezishintshe umbala, ezinye izinhlobo amatshe kuyo isikhunta senziwa. Ngaphambi umsebenzi kuhlongozwa ukuhlola ukuze uzizamele isampula azinakwa ngaphambi kokusebenzisa kubo izinto ezibalulekile.