Putty poda kubva dambudziko rehupfu

De-upfu uye kuchena kwemukati madziro putty poda pari zvino ndiwo matambudziko akajairika mushure mekuvaka putty.Kuti unzwisise zvikonzero zvemukati wemadziro putty poda de-upfu, munhu anofanirwa kutanga anzwisisa izvo zvakakosha zvinhu zvemukati uye kurapa misimboti yemukati madziro putty poda, uye wozobatanidza Panguva yekuvaka putty, kuoma kwemadziro emadziro, chiyero chekunyura kwemvura, tembiricha. , kuoma kwemamiriro ekunze, nezvimwewo, tsvaga zvikonzero zvikuru zvekudonha kwehupfu yeputty poda pamadziro emukati uye shandisa nzira inoenderana nekugadzirisa dambudziko rekudonha kwehupfu hweputty powder.

Iyo yakakosha yekuumbwa kwezvinhu zvemukati madziro putty powder:

Izvo zvinonyanya kukosha zvemukati madziro putty poda zvinosanganisira: inorganic bonding zvinhu (ash calcium), fillers (heavy calcium powder, talcum powder, etc.) polymer additives (HPMC, polyvinyl doro, rabha poda, nezvimwewo)

Pakati pavo, iyo yemukati madziro putty poda kazhinji haiwedzeri simende chena kana inongowedzera diki simende chena.Redispersible latex poda haina mhedzisiro mune yakaderera dosage, saka haishandiswe mukati memadziro putty poda kunyanya nekuda kwemutengo, kana isingawanzo kushandiswa.

Saka nekuda kwedambudziko remukati madziro putty poda formula pachayo:

1. Inorganic bonding zvinhu, zvakadai sekuwedzera kweash calcium yakanyanya kuderera, uye kunaka kweash calcium haisi kusvika kune imwe;

2. Kana huwandu hwechikamu chekubatanidza mu polymer additive yakanyanya kuderera kana kuti hutano husina kusvika kune hutsika, zvinogona kuita kuti putty powder pamadziro emukati awire.

Yakakamurwa muzvikamu zvinotevera:

01. Simba rekunamatira reputty harina kukwana kukonzera kubviswa kwehupfu.Mugadziri anoderedza mutengo noupofu.Kusimba kwekunamatira kwehupfu hwerabha kwakashata uye kuwanda kwekuwedzera kuduku, kunyanya kumadziro emukati putty.Hunhu hwehupfu hwerabha uye glue hune zvakawanda zvekuita nehuwandu hwakawedzerwa.

02. Chimiro chekugadzira hachina musoro, dambudziko rekusarudzwa kwezvinhu uye chimiro chakakosha zvikuru muputty formula.Semuenzaniso, hydroxypropyl methylcellulose (HPMC) inoshandiswa seisina-mvura putty yemukati wemadziro.Kunyange zvazvo HPMC inodhura zvikuru, haishandisi mafiritsi akadai sehupfu hwehuviri, talcum powder, wollastonite powder, nezvimwewo Kana HPMC chete inoshandiswa, inokonzera delamination.Zvisinei, CMC neCMS nemitengo yakaderera hazvibvisi hupfu, asi CMC neCMS haigoni kushandiswa semvura isina mvura, uye haigoni kushandiswa sekunze kwemadziro emadziro, nokuti CMC neCMS vanoita ne grey calcium powder uye simenti yakachena, iyo ichaita delamination.Kune zvakare polyacrylamides yakawedzerwa kune lime calcium poda uye simende chena semapendekete asingapindi mvura, izvo zvinozokonzera kuita kwemakemikari kukonzeresa kubviswa kwehupfu.

03. Kusaenzana kusanganisa uye kubvongodza ndicho chikonzero chikuru chekubviswa kwehupfu ye putty pamadziro emukati uye kunze.Vamwe vagadziri munyika vanogadzira putty powder nemichina yakapusa uye yakasiyana.Haisi yakakosha yekusanganisa michina, uye kusaenzana kusanganisa kunokonzera putty poda kubviswa.

04. Iko kukanganisa mukugadzirwa kwekugadzira kunoita kuti putty ive nehupfu.Kana musanganisi wekusanganisa usina basa rekuchenesa uye paine mamwe masara, iyo CMC mune yakajairwa putty ichaita neash calcium poda mune isina mvura putty.Iyo CMC, CMS uye Iyo chena simende yekunze kwemadziro putty inobata uye inokonzeresa de-hupfu.Midziyo yakakosha yemamwe makambani ine chiteshi chekuchenesa, chinogona kuchenesa zvakasara mumushini, kwete kungovimbisa kunaka kweiyo putty, asiwo kushandisa muchina mumwechete kune zvinangwa zvakawanda, uye kutenga mudziyo mumwechete kugadzira akasiyana siyana. putty.

05. Hunhu hwemafiritsi huri nyore zvakare kukonzera de-powdering.Nhamba huru yemafirita anoshandiswa mukati nekunze kwemadziro putty, asi zvirimo zveCa2CO3 mune inorema calcium poda uye talc poda munzvimbo dzakasiyana zvakasiyana, uye mutsauko wepH uchaitawo kudonha kwehupfu, seChongqing uye. Chengdu yemukati madziro putty powder inoshandisa imwechete rabha hupfu, asi talcum poda uye inorema calcium poda zvakasiyana.Iyo haibvi-hupfu muChongqing, asi inoita de-upfu muChengdu.Iyo haibvi-hupfu muHenan neNortheast China, asi inobvisa hupfu mune dzimwe nzvimbo.

06. Chikonzero chemamiriro ekunze zvakare chikonzero chekubviswa kwehupfu ye putty pamadziro emukati nekunze.Semuenzaniso, iyo putty pamadziro emukati nekunze ine mamiriro ekunze akaoma uye mhepo yakanaka mune dzimwe nzvimbo dzakaoma kuchamhembe.Dzimwe nzvimbo dzine mamiriro ekunze emvura, hunyoro hwenguva refu, putty film-forming properties haisi yakanaka, uye icharasikirwa neupfu, saka dzimwe nzvimbo dzakakodzerwa nemvura isina mvura ine ash calcium powder.

07. Inorganic binders yakadai segrey calcium powder uye white simenti hazvina kuchena uye zvine huwandu hwakawanda hweShuangfei powder.Iyo inonzi yakawanda-inoshanda grey calcium poda uye yakawanda-inoshanda simende chena pamusika haina kuchena, nekuti yakawanda yeaya isina kuchena inorganic binders inoshandiswa, uye iyo isina mvura putty yemukati nekunze madziro ichave isina hupfu. uye kwete kudzivirira mvura.

08. Muzhizha, kuchengetwa kwemvura kweputty pamadziro ekunze hakuna kukwana, kunyanya munzvimbo dzepamusoro-soro uye nzvimbo dzemhepo dzakadai semasuo akakwirira uye mahwindo.Nguva yekutanga yekuisa ash calcium powder uye simenti haina kukwana, uye mvura icharasika.Kana isina kuchengetwa zvakanaka, inovawo yakakomba hupfu .