Ifomula ye-gypsum plaster

Ukupulasitela ukhonkolo kuzoba yinsakavukela yokukhonkoloza odongeni lwangaphakathi esikhathini esizayo

I-gypsum yokuplasta esetshenziselwa izindonga zangaphakathi inezici zesisindo esilula, ukumuncwa komswakama, ukuvala umsindo, nokunethezeka okuqinile kokuphila. Izinto zokuplasta nge-Gypsum zizoba yinsakavukela yokuplasta odongeni lwangaphakathi esikhathini esizayo.

I-hemihydrate gypsum esetshenziselwa ukuplasta odongeni lwangaphakathi namuhla ngokuvamile i-β-hemihydrate gypsum, futhi i-hemihydrate desulfurized gypsum, noma i-gypsum yemvelo, noma i-phosphogypsum ehlangabezana nezidingo zokuvikela imvelo ivame ukusetshenziswa. Amandla omzimba we-gypsum ahluka kusuka ku-2.5 MPa kuya ku-10 MPa. Izinga le-hemihydrate gypsum elikhiqizwa abakhiqizi be-gypsum lihluke kakhulu ngenxa yomehluko wemvelaphi yempahla eluhlaza kanye nenqubo.

Idizayini Yefomula Ye-Plastering Gypsum Yobunjiniyela

I-gypsum yokuplasta esetshenziswa ebunjiniyela ivamise ukuba yi-gypsum esindayo futhi enesanti. Ngenxa yendawo enkulu yokwakha, ubukhulu bokulinganisa bungaphezu kuka-1 cm. Abasebenzi badinga ukulinganisa okusheshayo, ngakho-ke i-gypsum iyadingeka ukuze ibe ne-thixotropy enhle. Ukuklwebha okuhle, ukuzwa kwesandla okulula, ukuchayeka kalula ekukhanyeni nokunye.

hlaziya:

1. Ukusebenza kahle kokulinganisa. Ukuhlukaniswa kwesihlabathi kungcono, sebenzisa isihlabathi esiphakathi nesihlabathi esihle.

2. I-thixotropy enhle. Kudingeka ukuthi impahla yokugcwalisa yezinto ezibonakalayo ibe ngcono. Ingathola obukhulu, futhi ingathola izacile.

3. Akukho ukulahlekelwa amandla. Sebenzisa i-amino acid retarder, njenge-Italian Plast Retard PE.

Ifomula ephakanyisiwe yobunjiniyela be-plastering gypsum:

β-hemihydrate desulfurized gypsum: 250 kg (amandla egypsum cishe ama-MPa ama-3)

I-calcium eyi-150-200 mesh esindayo: 100 kg (i-calcium enzima akulula ukuba ibe yinhle kakhulu)

1.18-0.6mm isihlabathi: 400 kg (14 mesh-30 mesh)

0.6-0.075mm isihlabathi: 250 kg (30 mesh-200 mesh)

I-HPMC-40,000: 1.5 kg (Kutuswa ukugeza i-HPMC kathathu, umkhiqizo ohlanzekile, ukuqhakaza okuncane kwe-gypsum, i-viscosity ephansi, ukuzwa kwesandla esihle, kanye nevolumu encane yokungenisa umoya).

I-ejenti ye-Rheological YQ-191/192: 0.5 kg (i-anti-sag, ukwanda kokugcwalisa, ukuzwa kwesandla esilula, ukuqeda okuhle).

I-Plast Retard PE: 0.1 kg (umthamo awunqunyelwe, ulungiswa ngokuvumelana nesikhathi sokuhlangana, amaprotheni, akukho ukulahlekelwa amandla).

Isibonelo sempahla eluhlaza:

1.18-0.6 mm isihlabathi

0.6-0.075mm isihlabathi

β hemihydrate desulfurized gypsum (cishe 200 mesh)

Izici zale fomula yilezi: ukwakhiwa okuhle, amandla asheshayo. Kulula ukukala, izindleko eziphansi, ukuzinza okuhle, akulula ukuqhekeka. Ifanele ubunjiniyela.

Ukukhuluma ngesipiliyoni

1. I-gypsum ebuyisiwe isuka kuqoqo ngalinye kufanele ihlolwe ngefomula yokukhiqiza ukuze kuqinisekiswe ukuthi isikhathi sokusetha asishintshile noma singaphakathi kwebanga elilawulekayo. Uma kungenjalo, isikhathi sokusetha side kakhulu futhi kulula ukuqhekeka. Uma isikhathi sisifushane kakhulu, isikhathi sokwakha asanele. Ngokuvamile, isikhathi sokuqala sokusetha sokuklama imizuzu engu-60, futhi isikhathi sokugcina sokusetha se-gypsum siseduze nesikhathi sokuqala sokusetha.

2. Udaka lwesihlabathi akufanele lube lukhulu kakhulu, futhi okuqukethwe kodaka kufanele kulawulwe ku-3%. Okuqukethwe kodaka oluningi kulula ukuqhekeka.

3. I-HPMC, i-viscosity ephansi, ikhwalithi ephezulu iyanconywa. I-HPMC egezwe kathathu inosawoti omncane, kanti udaka lwegypsum lunongqoqwane omncane. Lobu bunzima bobuso namandla KULUNGILE

4. Uma uhlanganisa i-powder eyomile, isikhathi sokuxuba akufanele sibe side kakhulu. Ngemuva kokuthi zonke izithako seziphakiwe, gxuma imizuzu emi-2. Ngempushana eyomile, isikhathi eside sokuxuba, siba ngcono. Ngemva kwesikhathi eside, i-retarder nayo izolahleka. Kuyindaba yamava.

5. Ukuhlolwa kwesampula kwemikhiqizo. Kunconywa ukwenza isampula futhi uhlole imikhiqizo eqediwe kusukela ekuqaleni, phakathi nasekupheleni kwebhodwe ngalinye. Ngale ndlela, uzothola ukuthi isikhathi sokusetha sihlukile, futhi i-retarder kufanele ilungiswe ngokufanele ngokuvumelana nezidingo.