1 Matambudziko anowanzoitika muupfu hweputty yemadziro:
(1) Inooma nekukurumidza.
Izvi zvinonyanya kuitika nekuti huwandu hweupfu hwecalcium inowedzerwa mudota (hwakanyanya kukura, huwandu hweupfu hwecalcium inoiswa mufomura yeputty hunogona kuderedzwa zvakakodzera) hune chekuita nekuchengetwa kwemvura kwefaibha, uye hune chekuitawo nekuoma kwemadziro.
(2) Bvisa wobva wamonera.
Izvi zvine chekuita nekuchengetwa kwemvura, izvo zviri nyore kuitika kana viscosity ye cellulose yakaderera kana huwandu hwekuwedzera huri hudiki.
(3) Kubvisa hupfu hweputty yemukati memadziro.
Izvi zvine chekuita nehuwandu hweupfu hwecalcium inowedzerwa muash (huwandu hweupfu hwecalcium inoiswa muash mufomura yeputty hudiki zvakanyanya kana kuchena kweupfu hwecalcium inoiswa muash kwakaderera zvakanyanya, uye huwandu hweupfu hwecalcium inoiswa mufomura yeputty inofanira kuwedzerwa zvakakodzera), uye zvine chekuitawo nekuwedzerwa kwecellulose. Pane hukama pakati pehuwandu nehunhu, hunoonekwa muhuwandu hwekuchengetedza mvura yechigadzirwa. Mwero wekuchengetedza mvura wakaderera, uye upfu hwecalcium inoiswa muash (calcium oxide iri muash calcium powder haichinji zvizere kuita calcium hydroxide yekuchenesa) nguva haina kukwana, izvo zvinokonzerwa.
(4) Kuputika.
Izvi zvine chekuita nehunyoro hwakaoma uye kuti madziro akatsetseka, uye zvine chekuitawo nekuvakwa kwacho.
(5) Mapoinzi anoonekwa.
Izvi zvine chekuita ne cellulose, iyo ine hunhu husina kunaka hwekuumba firimu. Panguva imwe chete, tsvina iri mu cellulose inobatana zvishoma ne ash calcium. Kana reaction yacho yakanyanya, putty powder ichaonekwa muchimiro che bean curd residue. Haigone kuiswa pamadziro, uye haina simba rekubatana panguva imwe chete. Pamusoro pezvo, mamiriro ezvinhu aya anoitikawo nezvigadzirwa zvakaita se carboxyl groups zvakawedzerwa ku cellulose.
(6) Makomba emakomo anoputika uye maburi anobuda.
Zviri pachena kuti izvi zvine chekuita nekumanikidzwa kwemvura pamusoro pemvura ye hydroxypropyl methylcellulose aqueous solution. Kumanikidzwa kwemvura patafura ye hydroxyethyl aqueous solution hakusi pachena. Zvingave zvakanaka kuita mushonga wekupedzisa.
(7) Kana putty yaoma, zviri nyore kutsemuka uye kuita yero.
Izvi zvine chekuita nekuwedzerwa kwehuwandu hwakawanda hweupfu hweash-calcium. Kana huwandu hweupfu hweash-calcium hukawedzerwa zvakanyanya, kuomarara kweupfu hweputty hunowedzera mushure mekuoma. Kana upfu hweputty husina kuchinjika, hunotsemuka nyore nyore, kunyanya kana huchishandiswa nesimba rekunze. Zvinoenderanawo nehuwandu hwakawanda hwecalcium oxide muupfu hweash calcium, hwakatangwa kare.
2 Sei hupfu hweputty huchipera simba mushure mekuwedzera mvura?
Cellulose inoshandiswa sechinhu chinosimbisa uye chinochengetedza mvura muputty. Nekuda kwethixotropy yecellulose pachayo, kuwedzerwa kwecellulose muputty powder kunotungamirawo kuthixotropy mushure mekuwedzera mvura muputty. Iyi thixotropy inokonzerwa nekuparadzwa kwechimiro chezvikamu zviri muputty powder chisina kugadzikana. Chimiro ichi chinomuka pakuzorora uye chinoputsika kana chamanikidzwa. Kureva kuti, viscosity inoderera kana yakurungwa, uye viscosity inodzoka kana yamira.
3 Sei putty ichirema zvakanyanya pakukwenya?
Muchiitiko ichi, viscosity ye cellulose inowanzo shandiswa yakanyanya. Vamwe vagadziri vanoshandisa 200,000 cellulose kugadzira putty. Putty inogadzirwa nenzira iyi ine viscosity yakakura, saka inorema kana ichikweshwa. Huwandu hunokurudzirwa hweputty yemadziro emukati i3-5 kg, uye viscosity i80,000-100,000.
4 Sei putty nemortar zvakagadzirwa ne cellulose zvine viscosity yakafanana zvichinzwa zvakasiyana munguva yechando neyezhizha?
Nekuda kwekupisa kwechigadzirwa, viscosity yechigadzirwa inodzikira zvishoma nezvishoma nekuwedzera kwekupisa. Kana tembiricha ikapfuura tembiricha yegel yechigadzirwa, chigadzirwa chinobviswa mumvura uye chinorasikirwa ne viscosity yacho. Tembiricha yemukamuri muzhizha inowanzova pamusoro pemadhigirii makumi matatu, izvo zvakasiyana zvikuru netembiricha yemuchando, saka viscosity yakaderera. Zvinokurudzirwa kusarudza chigadzirwa chine viscosity yakakwira paunoisa chigadzirwa muzhizha, kana kuwedzera huwandu hwecellulose, uye kusarudza chigadzirwa chine tembiricha yakakwira yegel. Edza kusashandisa methyl cellulose muzhizha, tembiricha yayo yegel inenge madhigirii makumi mashanu nemashanu, kana tembiricha yakakwira zvishoma, viscosity yayo ichakanganiswa zvakanyanya.
Nguva yekutumira: Mbudzi-26-2022