Upfu hweputty chinhu chinoshandiswa zvakanyanya pakuvaka, chinonyanya kugadzirwa negypsum nezvimwe zvinowedzerwa. Chinoshandiswa kuzadza mipata, misungo uye mitswe mumadziro nepadenga. Hydroxypropylmethylcellulose (HPMC) ndeimwe yezvinowedzerwa zvinonyanya kushandiswa muupfu hweputty. Iine mashandiro akanaka ekuchengetedza mvura uye inonamatira zvakanaka, izvo zvinogona kuvandudza kushanda nesimba kweputty. Zvisinei, mhando yeHPMC cellulose inogona kukanganiswa nezvinhu zvakasiyana-siyana, zvakaita sekumutswa nekusanganiswa.
Kukurunga inhanho inokosha pakugadzira upfu hweputty. Zvinoita kuti zvese zvinoshandiswa zviparadzirwe zvakaenzana uye kuti chigadzirwa chekupedzisira hachina mapundu nezvimwe zvisina kunaka. Zvisinei, kukurunga kwakanyanya kunogona kukonzera HPMC cellulose isina kunaka. Kukurunga kwakanyanya kunogona kukonzera kuti cellulose iputsike, zvichideredza kuchengetedza kwayo mvura uye hunhu hwayo hwekunamira. Nekuda kweizvozvo, putty inogona kusanamatira zvakanaka pamadziro uye inogona kutsemuka kana kubvaruka mushure mekushandisa.
Kuti udzivise dambudziko iri, zvakakosha kutevedzera mirairo yemugadziri wekusanganisa upfu hweputty. Kazhinji, mirairo yacho inotsanangura huwandu hwakakodzera hwemvura uye nguva yekumutswa. Zvakanaka kuti putty ikurungwe zvakanaka kuti ive yakatsetseka uye yakagadzikana pasina kupwanya cellulose.
Kutetepa chimwe chinhu chakakosha chinokanganisa kunaka kweHPMC cellulose muputty powder. Kuderedzwa kunoreva kuwedzera mvura kana zvimwe zvinonyungudutsa muputty kuti zvive nyore kupararira nekuvaka. Zvisinei, kuwedzera mvura yakawandisa kuchaderedza cellulose uye kuderedza hunhu hwayo hwekuchengetedza mvura. Izvi zvinogona kukonzera kuti putty iome nekukurumidza, zvichikonzera kutsemuka nekuoma.
Kuti udzivise dambudziko iri, zvakakosha kutevedzera mirairo yemugadziri wekubvisa putty powder. Kazhinji, mirairo yacho inotsanangura huwandu hwakakodzera hwemvura kana solvent yekushandisa uye nguva yekusanganisa. Zvinokurudzirwa kuwedzera mvura shoma zvishoma nezvishoma wosanganisa zvakanaka usati wawedzera. Izvi zvichaita kuti cellulose iparadzirwe zvakanaka muputty uye irambe iine hunhu hwayo hwekuchengetedza mvura.
Mukupfupisa, kusanganisa nekusanganisa zvinhu kunokanganisa kunaka kweHPMC cellulose muputty powder. Zvakakosha kutevedzera mirairo yemugadziri nokungwarira kuti uve nechokwadi chekuti cellulose inoramba iine hunhu hwayo hwekuchengetedza mvura nekunamira. Nekuita izvi, munhu anogona kuwana putty yemhando yepamusoro iyo ichapa mhedzisiro yakanaka uye inoita kuti igare kwenguva refu ichinamira uye igare kwenguva refu.
Nguva yekutumira: Nyamavhuvhu-03-2023