Upfu hweputty rudzi rwezvinhu zvekushongedza chivako, zvinhu zvikuru ihupfu hwetalcum neglue. Rutivi ruchena ruri pamusoro peimba isina chinhu rwuchangobva kutengwa iputty. Kazhinji kuchena kweputty kunopfuura 90° uye hutete hunopfuura 330°.
Putty rudzi rwezvinhu zvepasi zvinoshandiswa kugadzirisa madziro, izvo zvinoisa hwaro hwakanaka hwedanho rinotevera rekushongedza (kupenda nemadziro emadziro). Putty yakakamurwa kuita mhando mbiri: putty mukati memadziro uye putty pamadziro ekunze. Putty yekunze inogona kudzivirira mhepo nezuva, saka ine gelation yakanaka, simba rakawanda uye indekisi yakaderera yezvakatipoteredza. Indekisi yakazara yeputty mumadziro emukati yakanaka, uye ine hutsanana uye ine hushamwari kune zvakatipoteredza. Naizvozvo, madziro emukati haasi ekushandiswa kwekunze uye madziro ekunze haasi ekushandisa mukati. Putty inowanzo shandiswa pagypsum kana simende, saka nzvimbo dzakaomarara dziri nyore kubatana. Zvisinei, panguva yekuvaka, zvichiri kudikanwa kukwesha layer ye interface agent pachigadziko kuti uvhare hwaro uye kunatsiridza kunamira kwemadziro, kuitira kuti putty ikwanise kubatanidzwa zviri nani pahwaro.
Vazhinji vanoshandisa putty powder vanofanira kubvuma kuti kubvisa putty powder idambudziko guru. Izvi zvichaita kuti pendi yelatex idonhe, pamwe nekubuda kweputty layer, izvo zvinozokonzera kutsemuka kwependi yelatex.
Kubvisa hupfu uye kucheneswa kweputty powder pari zvino ndiwo matambudziko anowanzoitika mushure mekugadzirwa kweputty. Kuti tinzwisise zvikonzero zvekubvisa hupfu hweputty, tinofanira kutanga tanzwisisa zvinhu zvepakutanga uye misimboti yekupisa yeputty powder, tobva tabatanidza madziro panguva yekugadzirwa kweputty. Kuoma, kunyudzwa kwemvura, tembiricha, kuoma kwemamiriro ekunze, nezvimwewo.
Zvikonzero zvikuru zvisere zvinoita kuti upfu hweputty huwire pasi.
chikonzero chimwe chete
Simba rekubatanidza putty harina kukwana kuti ribvise upfu, uye mugadziri anoderedza mutengo asingafungi. Simba rekubatanidza putty yerabha harina kunaka, uye huwandu hwekuwedzera hushoma, kunyanya putty yemukati memadziro. Uye kunaka kweglue kune chekuita nehuwandu hwekuwedzera.
Chikonzero chechipiri
Fomura yekugadzira isina musoro, kusarudzwa kwezvinhu uye matambudziko ekuvaka zvakakosha zvikuru mufomura yeputty. Semuenzaniso, hydroxypropyl methylcellulose (HPMC) inoshandiswa seputty isingapindi mvura pamadziro emukati. Kunyangwe HPMC ichidhura zvakanyanya, haishande kune zvinozadza zvakaita sedouble fly powder, talcum powder, wollastonite powder, nezvimwewo. Kana HPMC ikashandiswa chete, inokonzera delamination. Zvisinei, CMC neCMS nemitengo yakaderera hazvibvisi upfu, asi CMC neCMS hazvigone kushandiswa seputty isingapindi mvura, uye hazvigone kushandiswa seputty yekunze yemadziro, nekuti CMC neCMS zvinosangana negray calcium powder nesimende chena, izvo zvinokonzeresa delamination. Kunewo mapolyacrylamides anowedzerwa ku lime calcium powder nesimende chena semachira asingapindi mvura, izvo zvinokonzeresawo makemikari ekuita kuti upfu hubviswe.
Chikonzero Chechitatu
Kusanganisa zvisina kuenzana ndicho chikonzero chikuru chekubvisa hupfu hweputty pamadziro emukati nekunze. Vamwe vagadziri vemuno vanogadzira putty powder nemidziyo iri nyore uye yakasiyana-siyana. Haisi michina yekusanganisa yakakosha, uye kusanganisa kusina kuenzana kunokonzera kubviswa kweputty nehupfu.
Chikonzero chechina
Kukanganisa kuripo mukugadzirwa kunoita kuti putty ive nehupfu. Kana muchina wekusanganisa usina basa rekuchenesa uye paine masara akawanda, CMC iri muputty yakajairika ichaita zvakafanana neash calcium powder iri muputty isingapindi mvura. CMC neCMS iri muputty yemadziro yemukati nemadziro ekunze. Simende chena yeputty inoita kuti ibvise hupfu. Midziyo yakakosha yemamwe makambani ine pombi yekuchenesa, iyo inogona kuchenesa masara ari mumuchina, kwete kungoona mhando yeputty, asiwo kushandisa muchina mumwe chete pazvinangwa zvakasiyana-siyana, uye kutenga michina imwe chete yekugadzira putty yakasiyana-siyana.
Chikonzero Cheshanu
Musiyano wemhando yezvinozadza ungangokonzerawo kubviswa kwehupfu. Huwandu hwakawanda hwezvinozadza hunoshandiswa muputty yemukati nekunze yemadziro, asi huwandu hweCa2CO3 muhupfu hwecalcium hwakawanda uye hupfu hwetalc munzvimbo dzakasiyana hwakasiyana, uye musiyano wepH uchaitawo kuti putty ibvise hupfu, senge dziri muChongqing neChengdu. Hupfu hwerabha humwe chete hunoshandiswa pahupfu hweputty yemukati, asi hupfu hwetalcum nehupfu hwecalcium hwakawanda zvakasiyana. MuChongqing, haibvisi hupfu, asi muChengdu, haibvisi hupfu.
chikonzero chechitanhatu
Chikonzero chemamiriro ekunze ndicho chikonzero chekubviswa kwehupfu hweputty pamadziro emukati nekunze. Semuenzaniso, putty iri pamadziro emukati nekunze ine mamiriro ekunze akaoma uye mhepo inofefetera zvakanaka munzvimbo dzakaoma kuchamhembe. Kune mamiriro ekunze anonaya, hunyoro hunogara kwenguva refu, hunhu hweputty hwekugadzira firimu hahuna kunaka, uye hunorasikirwawo nehupfu, saka dzimwe nzvimbo dzakakodzera putty isingapindi mvura ine calcium powder.
chikonzero chechinomwe
Zvinhu zvinosunga zvinhu zvisina kuchena zvakaita segrey calcium powder nesimende chena hazvina kuchena uye zvine huwandu hwakawanda hwedouble fly powder. Zvinonzi multi-functional grey calcium powder nesimende chena yakawanda-functional zviri pamusika hazvina kuchena, nekuti huwandu hwakawanda hwezvinhu izvi zvisina kuchena zvinoshandiswa, uye putty isingapindi mvura yemadziro emukati nekunze ichave isina hupfu uye haipindi mvura.
chikonzero chechisere
Muzhizha, mvura inochengetwa neputty pamadziro ekunze haina kukwana, kunyanya munzvimbo dzine tembiricha yepamusoro uye mhepo inofefetera senge masuo nemahwindo marefu. Kana nguva yekutanga yekuisa calcium powder nesimende isina kukwana, icharasikirwa nemvura, uye kana ikasachengetwa zvakanaka, ichavewo nehupfu hwakanyanya.
Nguva yekutumira: Chikumi-02-2023