Zuva Rokutumira:17,Jul,2023

Matambudziko akajairika ekuvakwa kwemashure emukati madziro putty poda ari kupepeta uye kuchena. Kuti unzwisise zvikonzero zvekupenengura kwemukati madziro putty poda, zvinodikanwa kuti utange wanzwisisa iyo yakakosha yekuumbwa kwezvinhu uye kurapa bumbiro remukati madziro putty poda. Zvadaro, zvichibva pakuoma, kunyura kwemvura, tembiricha, uye kuoma kwemamiriro ekunze kwemadziro panguva yekuvaka putty, tsvaga zvikonzero zvikuru zvekupenengura kwemukati madziro putty poda uye shandisa nzira dzinoenderana kugadzirisa dambudziko reputty poda peeling.

一、 Basic raw material kuumbwa kwemukati rusvingo putty poda:

Zvinonyanya kukosha zvemukati madziro putty poda zvinosanganisira: inorganic bonding material (grey calcium), fillers (heavy calcium powder, talcum powder, etc.), uye polymer additives (HPMC, polyvinyl doro, rubber powder, nezvimwewo). Pakati pavo, mukati memadziro putty poda kazhinji haiwedzere simende chena kana kungowedzera simende chena. Redispersible latex poda haina mhedzisiro padanho rakaderera, saka hainyanyo shandiswa mukati memadziro putty poda nekuda kwemitengo yezvinhu kana isingawanzo kushandiswa.

Saka nekuda kwenyaya ine formula yemukati madziro putty poda pachayo:

1. Inorganic bonding zvinhu, zvakadai sekuwedzera kwakaderera kwegrey calcium uye substandard quality yegrey calcium;

2. Kuwedzerwa kwezvikamu zvekubatanidza mumapolymer additives zvakaderera kana zvisingasviki nemhando yehutano zvinogona kuita kuti mukati memadziro putty powder awire pasi.

二、Kurapa nzira yemukati wemadziro putty poda:

Kurapa kwemukati madziro putty poda kunonyanya kutsamira pane synergistic mhedzisiro ye lime calcium poda, HPMC uye zvimwe zvinongedzo zvepolymer pasi pemamiriro ekunyorova kusimbisa, kuumba firimu, uye kudzikamisa maitiro ekurapa.

Iyo yakaoma nheyo yegrey calcium powder:

Kuomesa uye kuomesa: Panguva yekutsvaira, mvura yakawanda inoputika kubva kune grey calcium powder, ichiita network yakakura yepores yakafanana mune slurry. Mvura yemahara yakasara mumapores, nekuda kwekunetsa kwepamusoro pemvura, inogadzira capillary pressure, ichiita kuti grey calcium powder particles ive compact, nokudaro kuwana simba. Apo slurry inowedzera kuomeswa, chiitiko ichi chinosimbiswa zvakare. Crystallization kuomeswa: Yakanyanya kupararira colloidal particles mu slurry inoparadzaniswa neiyo diffusion layer pakati pezvimedu. Sezvo mvura inodzikira zvishoma nezvishoma, iyo diffusion layer inoonda zvishoma nezvishoma, uye nekudaro macolloidal particles anonamatira kune mumwe nemumwe pasi pekuita kwemamorekuru masimba, achigadzira network yenzvimbo yezvimiro zvakapfupikiswa, nekudaro kuwana simba. Carbon kuomeswa: Iyo slurry inotora CO2 gasi kubva mumhepo, ichigadzira calcium carbonate iyo isinganyungudika mumvura. Iyi nzira inonzi carbonation ye slurry. The co reactions ndezvizvi:

Ca(OH)2+CO2+H2O→CaCO3+(n+1)H2O

Iyo yakagadzirwa calcium carbonate crystals inogara pamwe chete kana ne calcium hydroxide particles, ichigadzira yakanyatsopindirana crystal network, nekudaro inovandudza simba re slurry. Pamusoro pezvo, nekuda kwekuwedzera zvishoma kwakasimba vhoriyamu yecalcium carbonate ichienzaniswa necalcium hydroxide, iyo yakaoma grey calcium poda slurry inoita kunge yakasimba. 3, Mushure mekunge putty poda yaiswa kumadziro, mvura iri muputty inonyanya kurasika nenzira nhatu:

Kunyungudika kwemvura pamusoro peputty apo grey calcium newhite simenti zvinopinda mune inonzvenga putty poda yepasi pemadziro. 3. Kupesvedzera kwezvinhu zvekuvaka pahupfu hwekudurura hupfu hweputty:

Zvikonzero zvekurasikirwa kweupfu kunokonzerwa nekuvaka zvinosanganisira: mamiriro asina kunaka ekugadzirisa anoita kuti putty iome nekukurumidza uye isina simba rakakwana; Iyo yekutanga madziro pamusoro yakaoma zvakanyanya, zvichiita kuti putty ikurumidze kurasikirwa nemvura; Kuwedzeredza ukobvu hweputty mune imwe batch.