Te whakauru moata gypsum

He herenga ki te whakapai ake i te mahi o te whakapiri gypsum ma te whakauru kotahi.Mena ko te mahinga o te moata gypsum he pai ki te whakatutuki i nga whakaritenga tono rereke, ko te whakauru matū, te whakauru, te whakakii me te maha o nga rauemi e hiahiatia ana hei whakakotahi me te whakakii tetahi ki tetahi i runga i te maatauranga me te tika.

1. Ko te whakamau

Ko te nuinga o te wa ka wehewehea te coagulant ki te retarder me te coagulant.I roto i te moata whakaranu maroke gesso, ko te hua e whakamahi ana i te gesso maoa ki te hanga i nga mea katoa ka whakamahi i te kaihoko whakaroa, te whakamahi i te gesso anhydrous, te hua ranei e whakamahi ana i te gesso wai e 2 ki te hanga tika me whakatairanga i te kaihoko coagulate.

2. Retarder

Na roto i te taapiri i te retarder ki te gypsum maroke nga rauemi hangahanga whakauru, ka aukatihia te tukanga hydration o te gypsum semi-hydrous ka roa te wa whakakoi.He rereke nga tikanga whakamakuku o te raima gypsum, tae atu ki te wahanga o te hangahanga o te raima gypsum, te pāmahana o te papanga gypsum, te pai o te matūriki, te wa whakarite me te uara pH o te hua kua oti.Ko ia take he awe ki runga i te paanga o te whakaroa, no reira he nui nga rereketanga i roto i te nui o te kaihoko whakaroa i raro i nga ahuatanga rereke.I tenei wa, ko te pai ake o te retarder motuhake o te whare gypsum he pūmua metamorphic (pūmua teitei), he painga o te utu iti, te wa roa, te iti o te kaha o te kaha, te hanga pai, te wa whakatuwheratanga roa me etahi atu.I roto i te momo raro stucco gypsum nui faaineineraa ko te tikanga i roto i 0.06% ~ 0.15%.

3. Ko te whakamau

Ko te whakatere i te wa whakakorikori o te slurry me te whakaroa i te tere whakakorikori o te slurry tetahi o nga tikanga tinana hei whakatairanga i te coagulation.Ko nga coagulants matū e whakamahia nuitia ana i roto i nga mea hanga paura gypsum anhydrous ko te konupora chloride, te pāhare pāporo, te pūkawa me ētahi atu waikawa.Ko te inenga ko te tikanga 0.2% ~ 0.4%.

4. Kaipupuri pupuri wai

Kare e taea e Gesso nga rauemi hangahanga maroke te waiho hei pare wai.Ki te whakapai ake i te reiti pupuri wai o te slurry hua gypsum ko ki te whakarite kia noho te wai i roto i te slurry gypsum mo te wa roa kia rite ki te whiwhi i te hydration pai me te whakapakeke pānga.Ko te whakapai ake i te hanga o nga rawa hanga paura gypsum, te whakaheke me te aukati i te wehenga me te toto o te gypsum slurry, te whakapai ake i te rere o te slurry e iri ana, te roa o te wa whakatuwhera, te whakaoti i nga raru o te miihini penei i te pakaru me te pahū kau kaore e taea te wehe mai i te kaihoko pupuri wai.Ko te pai o te kaihoko pupuri wai ka whakawhirinaki te nuinga ki tona mararatanga, tere te whakarewatanga, te hanga, te whakamaaramatanga o te waiariki me te matotoru, kei roto ko te pupuri wai te tohu tino nui.

He kaihoko pupuri wai ether cellulose

I tenei wa, ko te hydroxypropyl methyl cellulose te nuinga o te whakamahi i te maakete, whai muri ko te methyl cellulose, me te carboxymethyl cellulose.Ko nga ahuatanga matawhānui o te hydroxypropyl methyl cellulose he pai ake i te methyl cellulose.Ko te pupuri wai o te hydroxypropyl methyl cellulose he tino teitei ake i tera o te carboxymethyl cellulose, engari he kino atu te paanga o te whakamaatototanga me te hononga hononga ki tera o te carboxymethyl cellulose.I roto i te gypsum maroke rauemi hanga whakauru, te nui o te hydroxypropyl me te methyl cellulose kei roto i te whānuitanga o 0.1% ~ 0.3%, me te nui o te carboxymethyl cellulose kei roto i te whānuitanga o 0.5% ~ 1.0%.

Maaka wai-pupuhi kaihoko

Ko te momo maaka hei whakamarumaru i te kaihoko wai e whakamahia ana i te gesso be putty i roto i te tamaiti, te tauira paparanga kanohi tauira stucco gesso, ka taea te whakakapi i te momo momo cellulose hei tiaki i te kaihoko wai.Ka taea te whakapai ake i te mahi, te hanga me te riterite o te slurry ma te taapiri i te maaka pupuri wai-wai ki nga taonga hanga whare maroke.Ko nga hua o te maaka hei pupuri i te wai ko te maaka cassava, i mua i te gelatinized starch, te carboxymethyl starch, te carboxypropyl starch.Ko te momo maaka e tiaki ana i te inenga o nga kaihoko wai kia 0.3% ~ 1% te nuinga, mena he nui rawa te inenga o te hui ka puta nga hua koriri i raro i te taiao haukū, ka pa ki te kounga o te kaupapa.

③ Ko te momo kapia hei pupuri wai

He pai ake te mahi a etahi whakapiri inamata ki te pupuri wai.Pērā i te 17-88, 24-88 polyvinyl waipiro paura, kapia matomato me te kapia guar e whakamahia ana mo te hono i te gypsum, te gypsum putty, te kapia gypsum insulation me etahi atu taputapu hangahanga maroke maroke, i roto i te nui o te keehi, ka taea te whakaiti i te nui o he kaihoko pupuri wai cellulose.Ina koa i roto i te gypsum piri tere, ka taea e ia te whakakapi i nga etera cellulose i etahi waa.

(4) Nga taonga pupuri wai parakore

Ko te tono o etahi atu rauemi pupuri wai i roto i nga taonga hangahanga maroke maroke ka taea te whakaiti i te nui o etahi atu taonga pupuri wai, ka whakaheke i te utu o nga hua, me te whakapai ake i te mahi me te hanganga o te slurry gypsum.Ko nga rauemi pupuri wai parakore e whakamahia nuitia ana ko te bentonite, te kaolin, te diatomite, te paura zeolite, te paura perlite, te uku attapulgite, etc.

5. Whakapiri

Ko te whakaurunga o te whakapiri ki roto i te gypsum maroke nga rawa hangahanga he iti iho ki te kaihoko pupuri wai me te retarder.Ko te kumete whakamaarama whaiaro a Gesso, te gesso whakapiri, te gesso caulking, te whakamahana wera e kore e taea e te kapia gesso te waiho he kaihoko whakapiri.

Te paura taherapa tukurua:

He nui te whakamahi i te paura taherapa redispersible i roto i te gypsum self-leveling mortar, gypsum insulation glue, gypsum caulking putty me te aha atu.Ina koa i roto i te gypsum self-leveling mortar, ka taea e te slurry viscidity, te pai o te wai, ki te whakaiti i te stratification, te karo i te toto, te whakapai ake i te aukati kapiti me te pera ano he mahi nui.Ko te tikanga 1.2% ~ 2.5%.

waipiro polyvinyl inamata:

I tenei wa, ko te waipiro polyvinyl rewa tonu me te maha atu o nga waahanga i runga i te maakete ko te 24-88, 17-88 te hua o nga tauira e rua, he maha nga wa e whakamahia ana i te raima whakapiri, gesso, gesso pūhui tiaki wera kāpia, stucco raima me etahi atu hua, te inenga he i roto i te 0.4% ~ 1.2% te nuinga.

Guar gum, parae gelatin, carboxymethyl cellulose, starch ether and so on are adhesives with different bonding functions in gypsum dry mixed building materials.

6. Matotoru

Ko te whakamarumaru te nuinga ki te whakapai ake i te mahi me te rere o te gypsum slurry, he rite ki te piri me te kai pupuri wai, engari kaore i te tino.He pai etahi o nga hua o te maatete ki te whakakaha i te whakaute, engari ko te whakaute e kore e pai i roto i te kaha whakakotahi, te reeti pupuri wai.I te wa e hanga ana i nga rawa hanga paura maroke gypsum, me tino whakaaro te huanga matua o te whakauru kia pai ake ai te pai o te whakaurunga.Ko nga hua whakamarumaru e whakamahia ana ko te polyacrylamide, te kapia matomato, te guar gum, te carboxymethyl cellulose.

7. Kaihautu-a-rangi

Ko te kaihoko whakauru hau e mohiotia ana ano he kaihoko hukahuka, te nuinga e whakamahia ana i roto i te kapia gypsum insulation glue, te raima raima me etahi atu taputapu hangahanga gypsum maroke.Ko te kaihoko whakauru hau (te kaihoko pahuka) ka awhina i te whakapai ake i te hanga, te aukati kapiti, te haupapa haupapa, te whakaheke i te toto me te wehewehenga ahuatanga, ko te inenga kei te 0.01% ~ 0.02%.

8. He kaihoko whakaheke

He maha nga wa e whakamahia ana te kaihoko whakaheke i te kumete whakamaarama i te gesso, ka whakakiia te gesso caulking ki roto, ka taea te whakanui ake i te kiato o te penupenu, te kaha, te aukati wai, te whakakao ira, kei te 0.02% ~ 0.04% te inenga.

9. He kaihoko whakaheke wai

Ka taea e te kaihoko whakaheke wai te whakapai ake i te rerenga gesso slurry me te gesso whakapakeke i te kaha o te tinana, i te nuinga o te waa i te gesso self leveling mortar, stucco gesso.I tenei wa, ko te kaihoko whakaheke wai i roto i te whare ko te waikawa polycarboxylic hei whakaheke i te wai whakaheke wai, te melamine teitei te kaha o te whakaheke i te wai, te punaha tii he kaha te kaha ki te whakaheke i te wai, te lignosulfonate wai whakaheke i runga i te kaha me te kaha o te kaha.I tua atu i te kai me te kaha o te wai, he mea tika kia aro ki te wa whakarite me te ngaro o te wai o nga taonga hanga gypsum i te wa e whakamahi ana i te kaihoko whakaheke wai i roto i nga taputapu hangahanga maroke maroke.

10. Kaitiaki parewai

Ko te hapa nui o nga hua gypsum ko te ngoikore o te wai.Ko te waahi ka nui ake te makuku hau he nui ake nga whakaritenga atete wai mo te kumete whakauru maroke.Ko te tikanga, ka pai ake te aukati wai o te tinana whakakeke gypsum ma te taapiri i te whakauru waipēhi.I raro i te ahua o te wai maku, te wai kukū ranei, ka taea e te whakarea ngohengohe o te tinana whakapakeke gypsum te 0.7, kia tutuki ai nga whakaritenga o te kaha o te hua.Ka taea hoki te whakamahi i nga whakauru matū hei whakaiti i te memehatanga o te gypsum (ara, te whakanui ake i te whakarea whakaeneene), te whakaheke i te whakaurunga o te gypsum ki te wai (ara, te whakaheke i te whakauru wai) me te whakaheke i te horo o te tinana gypsum pakeke (ara, te wai. wehea) ara parenga wai.Ko te kaihoko parewai gypsum he haukinia borate, methyl konutai silicate, silicone resin, waiu parapara wax, he pai ake te painga me te silicone emulsion kaihoko parewai.

11. Whakahohe kaha

Ka taea te whakahohe i te gypsum anhydrous taiao me te matū kia piri, kia kaha hoki, kia pai ai mo te hanga i nga taonga hangahanga gypsum maroke.Ka taea e te kaiwhakaoho waikawa te whakatere i te tere o te whakamakuku moata o te gypsum anhydrous, te whakapoto i te waa whakatuu me te whakapai ake i te kaha o te tinana gypsum pakeke.He iti te paanga o te kaiwhakahohe kawakore ki te tere o te whakamakuku moata o te gypsum anhydrous, engari ka taea te whakapai ake i te kaha o muri mai o te tinana o te gypsum whakapakeke, a ka taea te hanga i tetahi waahanga o te rauemi cimenting waipēhi i roto i te tinana whakapakeke gypsum, e pai ake ai te aukati wai o te tinana gypsum pakeke. .He pai ake te painga o te whakakorikori pūhui waikawa-turanga i tera o te waikawa kotahi, te kaiwhakaoho taketake ranei.Ko nga kaiwhakaoho waikawa ko te konutai konutai, te konutai konutai, te konutai konutai me etahi atu.Ko nga kaiwhakaoho kawakore ko te toka tere, te ciment, te clinker ciment, te dolomite calcined me etahi atu.

Whakahinuhinu Thixotropic

Ka whakamahia te hinu whakahinuhinu Thixovariable i roto i te gypsum whakataurite-whaiaro, i te stuccoing gypsum ranei, ka taea te whakaiti i te rerenga rere o te kumete gypsum, te roa o te wa whakatuwhera, te aukati i te stratification me te whakatau o te slurry, kia pai ai te whakahinuhinu me te hanga o te slurry, te ahua o te hanganga tinana whakapakeke, whakanuia tona kaha mata.