1. Matambudziko anowanzo mu putty powder
Kuomesa nekukurumidza: Izvi zvinonyanya kukonzerwa nehuwandu hwe lime calcium powder yakawedzerwa (yakakura kwazvo, huwandu hwe lime calcium powder inoshandiswa muputty formula inogona kuderedzwa zvakakodzera) inoenderana nehuwandu hwekuchengetedza mvura ye fiber, uye zvakare. zvine chekuita nekuoma kwemadziro.
Peel uye roll. Izvi zvakabatana nehuwandu hwekuchengetedza mvura, izvo zviri nyore kuitika kana viscosity ye cellulose yakaderera kana kuwanda kwekuwedzera kuduku.
De-powdering of internal wall putty powder: Izvi zvinoenderana nehuwandu hweash calcium powder yakawedzerwa (huwandu hweash calcium powder muputty formula idiki kana kuchena kweash calcium powder yakaderera, uye huwandu hwedota. calcium powder mu putty powder formula inofanira kuwedzerwa zvakakodzera) Panguva imwecheteyo, iyo inobatanidzawo nehuwandu uye hutano hwe cellulose, iyo inoratidzwa muhuwandu hwekuchengetedza mvura kwechigadzirwa. Mvura yekuchengetedza mvura yakaderera, uye nguva yeash calcium powder (calcium oxide in ash calcium powder haina kushandurwa zvakakwana ku calcium hydroxide) haina kukwana. ,zvakakonzera.
Blistering: Izvi zvinoenderana nehunyoro hwakaoma uye kupfava kwemadziro, uye zvakare zvine chekuita nekuvakwa.
Pinpoints dzinoonekwa. Izvi zvakabatana ne cellulose, iyo ine urombo hwekugadzira firimu. Panguva imwecheteyo, kusvibiswa mu cellulose kunobata zvishoma neash calcium. Kana maitiro acho akaoma, iyo putty powder ichaonekwa mumamiriro ebhinzi curd yakasara. Haikwanise kuiswa pamadziro, uye haina simba rakabatana panguva imwe chete. Mukuwedzera, mamiriro ezvinhu aya anoitikawo nemishonga yakadai se carboxymethyl yakasanganiswa ne cellulose.
Kuonekwa kwema craters nemapinholes: Izvi zviri pachena zvine hukama nekunetsana kwemvura pamusoro peiyo hydroxypropyl methylcellulose aqueous solution. Iko kushushikana kwemvura patafura yehydroxyethyl aqueous solution haisi pachena. Zvingava zvakanaka kuita finishing treatment.
Mushure mokunge putty yakaoma, zviri nyore kuputika uye kushanduka yellow: izvi zvakabatana nekuwedzera kwehuwandu hweash calcium powder. Kana iyo yakawanda yeash calcium powder yakawandisa, kuoma kweputty powder kuchawedzera mushure mekuoma. Kuomarara chete pasina kuchinjika kuchatsemuka nyore, kunyanya Zviri nyore kutsemuka kana uchiiswa pasi pesimba rekunze. Iyo inobatanawo nehuwandu hwehuwandu hwe calcium oxide mu ash calcium powder.
2. Sei putty powder ichiva mutete mushure mekuwedzera mvura?
Cellulose inoshandiswa seyakakura uye inochengetedza mvura mumiriri. Pamusana pe thixotropy ye cellulose pachayo, kuwedzerwa kwe cellulose mu putty powder kunotungamirirawo kuthixotropy mushure mekuwedzera mvura kune putty. Iyi thixotropy inokonzerwa nekuparadzwa kwemaitiro akasununguka akabatanidzwa ezvikamu muputty powder. Ichi chimiro chinomuka pakuzorora uye chinoputsika pasi pekunetseka. Izvi zvinoreva kuti, viscosity inoderera pasi pekukurudzira, uye viscosity inopora kana yakamira.
3. Ndechipi chikonzero nei putty iri kuremerwa mukukwesha?
Muchiitiko ichi, viscosity ye cellulose inowanzoshandiswa yakanyanyisa. Vamwe vagadziri vanoshandisa 200,000 cellulose kugadzira putty. Iyo putty inogadzirwa nenzira iyi ine viscosity yakakwirira, saka inonzwa inorema kana ichikwesha. Nhamba yakakurudzirwa yeputty yemadziro emukati ndeye 3-5 kg, uye viscosity ndeye 80,000-100,000.
4. Sei iyo yakafanana viscosity cellulose inonzwa yakasiyana munguva yechando nezhizha?
Nekuda kweiyo thermal gelation yechigadzirwa, viscosity ye putty uye dhaka ichaderera zvishoma nezvishoma nekuwedzera kwekushisa. Kana iyo tembiricha ichipfuura tembiricha yegel yechigadzirwa, chigadzirwa chinonatswa kubva mumvura uye chinorasikirwa nemaviscosity. Tembiricha yekamuri muzhizha kazhinji iri pamusoro pe30 madhigirii, ayo akasiyana zvakanyanya nekupisa munguva yechando, saka viscosity yakaderera. Zvinokurudzirwa kusarudza chigadzirwa chine viscosity yakakwirira paunoshandisa chigadzirwa muzhizha, kana kuwedzera huwandu hweselulosi, uye kusarudza chigadzirwa chine tembiricha yepamusoro yegel. Edza kusashandisa methyl cellulose muzhizha. Tembiricha yegel iri pakati pe55 degrees, tembiricha yakakwira zvishoma, uye viscosity yayo ichakanganiswa zvakanyanya.
Nguva yekutumira: Kubvumbi-13-2023