1 Iingxaki eziqhelekileyo kwi-putty eludongeni:
(1) Yoma ngokukhawuleza.
Oku ikakhulu ngenxa yokuba isixa somgubo wekhalsiyam eyongeziweyo (inkulu kakhulu, isixa somgubo wekhalsiyam esetyenzisiweyo kwifomula yeputty sinokuncitshiswa ngokufanelekileyo) sinxulumene nezinga lokugcinwa kwamanzi kwifayibha, kwaye ikwanxulumene nokoma. yodonga.
(2) Peel kwaye uqengqe.
Oku kuhambelana nesantya sokugcinwa kwamanzi, okulula ukwenzeka xa i-viscosity ye-cellulose iphantsi okanye inani lokongezwa lincinci.
(3) I-De-powdering yodonga lwangaphakathi lwe-putty powder.
Oku kuhambelana nomthamo we-ash calcium powder eyongeziweyo (umthamo we-ash calcium powder kwi-putty formula incinci kakhulu okanye ukucoceka kwe-ash calcium powder kuphantsi kakhulu, kunye nomthamo we-ash calcium powder kwi-putty powder formula kufuneka. kwandiswe ngokufanelekileyo), kwaye ikwanxulumene nokongezwa kweselulosi. Kukho ubudlelwane phakathi kobuninzi kunye nomgangatho, obonakaliswa kwizinga lokugcinwa kwamanzi kwimveliso. Izinga lokugcinwa kwamanzi liphantsi, kwaye i-ash calcium powder (i-calcium oxide kwi-ash calcium powder ayiguqulwanga ngokupheleleyo kwi-calcium hydroxide ye-hydration) ixesha alanele, elibangelwa.
(4) Amadyungudyungu.
Oku kuhambelana nokufuma okomileyo kunye nokunyuka kodonga, kwaye kunxulumene nokwakhiwa.
(5) Iingongoma ziyavela.
Oku kuhambelana ne-cellulose, eneempawu ezimbi zokwenza ifilimu. Ngelo xesha, ukungcola kwi-cellulose kusabela kancinci nge-ash calcium. Ukuba ukusabela kubukhali, i-putty powder iya kubonakala kwimeko yentsalela yebhontshisi. Ayinakubekwa eludongeni, kwaye ayinayo amandla obumbano ngexesha elinye. Ukongeza, le meko iyenzeka nakwiimveliso ezinje ngamaqela e-carboxyl afakwe kwiselulosi.
(6) Kuvela imingxunya yentaba-mlilo kunye nemingxuma.
Ngokucacileyo oku kunxulumene nokuxinana komphezulu wamanzi we-hydroxypropyl methylcellulose isisombululo samanzi. Uxinzelelo lwetafile yamanzi kwisisombululo samanzi se-hydroxyethyl ayicacanga. Kuya kulunga ukwenza unyango lokugqiba.
(7) Emva kokuba iputty yomile, kulula ukuqhekeka kwaye ijike ibe tyheli.
Oku kuhambelana nokongezwa komthamo omkhulu we-ash-calcium powder. Ukuba inani le-ash-calcium powder liyongezwa kakhulu, ubunzima be-putty powder buya kwanda emva kokumisa. Ukuba i-putty powder ayinakho ukuguquguquka, iya kuqhekeka ngokulula, ngakumbi xa iphantsi kwamandla angaphandle. Kwakhona kuhambelana nomxholo ophezulu we-calcium oxide kwi-ash calcium powder, eyaziswa ngaphambili.
2 Kutheni le nto umgubo weputty usiba bhityileyo emva kokuba ugalelwe amanzi?
I-cellulose isetyenziswe njenge-thickener kunye ne-agent egcina amanzi kwi-putty. Ngenxa ye-thixotropy ye-cellulose ngokwayo, ukongezwa kwe-cellulose kwi-putty powder kukhokelela kwi-thixotropy emva kokongeza amanzi kwi-putty. Le thixotropy ibangelwa ukutshatyalaliswa kwesakhiwo esidibeneyo samacandelo kwi-putty powder. Esi sakhiwo sivela ekuphumleni kwaye siphule phantsi koxinzelelo. Oko kukuthi, i-viscosity iyancipha phantsi kokuvuselela, kwaye i-viscosity iphinda ibuyele xa imile.
3 Kutheni le nto iputty inzima xa kukhuhlwa?
Kule meko, i-viscosity ye-cellulose esetyenziswa ngokubanzi iphezulu kakhulu. Abanye abavelisi basebenzisa i-200,000 yeselulosi ukwenza i-putty. I-putty eveliswe ngolu hlobo ine-viscosity ephezulu, ngoko ivakalelwa kakhulu xa ikhuhla. Isixa esicetyiswayo se-putty kwiindonga zangaphakathi yi-3-5 kg, kwaye i-viscosity yi-80,000-100,000.
4 Kutheni i-putty kunye ne-mortar eyenziwe nge-cellulose ene-viscosity efanayo ivakalelwa ngokwahlukileyo ebusika nasehlotyeni?
Ngenxa ye-thermal gelation yemveliso, i-viscosity yemveliso iya kuncipha ngokuthe ngcembe ngokunyuka kweqondo lokushisa. Xa iqondo lokushisa lidlula ukushisa kwe-gel yemveliso, imveliso iya kuhlanjululwa emanzini kwaye ilahlekelwe yi-viscosity yayo. Ukushisa kwegumbi ehlotyeni ngokuqhelekileyo kungaphezulu kwama-30 degrees, okuhluke kakhulu kwiqondo lokushisa ebusika, ngoko i-viscosity iphantsi. Kunconywa ukuba ukhethe imveliso ene-viscosity ephezulu xa usebenzisa imveliso ehlobo, okanye ukwandisa inani le-cellulose, kwaye ukhethe imveliso enobushushu obuphezulu be-gel. Zama ukuba ungasebenzisi i-methyl cellulose ehlotyeni, ubushushu bayo be-gel bujikeleze ama-degrees angama-55, ukuba ubushushu buphezulu kancinci, i-viscosity yayo iya kuchaphazeleka kakhulu.
Ixesha lokuposa: Nov-26-2022