ISIBALO ESIFINYELWE
Ukukhetha okufanele kwe-sealant kumele kucabangele injongo yejoyinti, ubukhulu bokuguqulwa kwejoyinti, ubukhulu bejoyinti, i-substrate yejoyinti, indawo lapho ukuxhumana kwejoyinti kutholakala khona, kanye nezakhiwo zemishini okudingeka i-sealant izifeze. Phakathi kwazo, ubukhulu bejoyinti bunqunywa uhlobo lwejoyinti kanye nobukhulu obulindelekile bokuguqulwa kwejoyinti.
Ukuqinisekisa impilo yesevisi kanye nokusebenza kahle kwe-sealant, ukukhetha okufanele kwe-sealant kumele kucatshangelwe ngokucophelela. Ngokuvamile, izinyathelo ezintathu zingathathwa ukuqinisekisa ukuthi i-sealant ifinyelela impilo yayo engcono kakhulu yokuklama.
- 1. Yakha imithungo ngokwesayensi nangokufanele ngokwezidingo zokusetshenziswa kanye nendawo ezungezile;
- 2. Nquma izinkomba zokusebenza okudingeka ukuthi i-sealant ihlangabezane nazo ku-interface eklanyelwe;
- 3. Ngokusekelwe ezinkombeni zokusebenza ezinqunyiwe, kunconywa ukukhetha ingcina bese wenza ukuhlolwa kokuhambisana nokunamathela okudingekayo ukuqinisekisa ukuthi umkhiqizo okhethiwe uhlangabezana nezidingo.
Izinto zokuvala uphahla zenza imisebenzi emithathu elandelayo ngenqubo yokubopha:
- 1. Iyakwazi ukugcwalisa igebe phakathi kwezingxenye ezimbili noma ngaphezulu ukuze yakhe uphawu:
- 2. Ukwakha isithiyo ngezakhiwo zaso zomzimba kanye nokunamathela ku-substrate
- 3. Gcina ukuqina kokuvala ngaphansi kwesikhathi sokuphila okulindelekile, izimo zokusebenza, kanye nendawo okuyo.
Izici eziyinhloko ezinquma umsebenzi we-sealant zifaka phakathi amandla ayo okunyakaza, izakhiwo zemishini, ukunamathela, ukuqina, kanye nokubukeka. Izici zemishini nezemishini zibhekisela kakhulu ezinkombeni ezifana nokuqina, i-modulus ye-elastic, amandla okudonsa, ukumelana nokudabuka, ukuqina, kanye nesilinganiso sokubuyisa i-elastic. Uma usebenzisa i-sealant, izidingo eziyinhloko zokusetshenziswa okufanele zicatshangelwe isikhathi esingenaso i-tack, isikhathi sokususa i-bonding, ukugoba, isikhathi sokuphelelwa yisikhathi (sezinto zokunamathisela ezinezingxenye ezimbili), ukunwebeka, isivinini sokuqina okujulile, ukungakhiphi igwebu, izindleko, umbala, kanye nokuncipha okuqondile ngesikhathi sokuqina; Ngesikhathi esifanayo, kubalulekile ukucabangela izakhiwo zokuguga ze-sealant, kufaka phakathi ukumelana kwayo nemisebe ye-UV, izakhiwo zemishini zokushisa okuphezulu nokuphansi, i-hydrolysis yokushisa, ukuguga kokushisa, kanye nokumelana ne-oxidation.
Ukunamathela kuyinqubo ehlanganisa ukulungiswa, ukusetshenziswa, ukususwa, kanye nokugcinwa kwe-sealant. Ikhwalithi yokusebenza kwe-glue ihlobene ngqo nezinto zokubopha, i-sealant, kanye nenqubo yokunamathela. Ngakho-ke, lapho kwenziwa ukwakhiwa, ithonya lezici ezintathu kufanele licatshangelwe ngokuphelele. Kuphela ngokulungisa lezi zici ezintathu ngokufanele nangokuzihlanganisa ngokwemvelo lapho ukunamathela okufanele kungafinyelelwa khona, futhi noma iyiphi inkinga kunoma yisiphi isixhumanisi ingaholela ekwehlulekeni kokunamathela.
I-silicone sealant esetshenziswa ekwakheni ikakhulukazi inikeza ukuvala okumelana nesimo sezulu kanye nokuvala kwesakhiwo. Ngaphezu komklamo omuhle wesixhumi, imininingwane yenqubo yokwakha ehambisanayo kumele ilandelwe ngesikhathi senqubo yokwakha.
Kunezidingo ezinhlanu eziyisisekelo zokwelashwa okufanele kwendawo ehlanganisiwe kanye nokunamathela:
- Indawo engaphakathi kumele ihlanzeke, yome, ingabi nothuli noma iqhwa;
- Uma kudingeka i-primer, kumele ifakwe endaweni ehlanzekile;
- Sebenzisa izinto ezihambisanayo noma i-adhesive tape njengoba kudingeka;
- Uma usebenzisa i-sealant, kubalulekile ukugcwalisa igebe le-interface nge-sealant;
- Ukuklwebha ukuqinisekisa ukuthi imithungo ibushelelezi, ukuma okulungile, kanye nokuxhumana okuphelele ne-substrate.
I-silicone sealant nayo ingabhekwa njenge-glue ngenxa yesakhiwo sayo samakhemikhali. Ukunamathela kwe-silicone sealing kuyindlela yemvelo yamakhemikhali, ngakho-ke izinyathelo zokusebenzisa ezifanele zibaluleke kakhulu. Ngenxa yokusetshenziswa kwe-OLIVIA silicone sealant ezindaweni eziningi ezahlukene kanye nasezifundazweni, imininingwane yenqubo yokwakha ayikwazi ukubhekwa njengohlelo oluphelele noluphelele lokuqinisekisa ikhwalithi. Ukuphathwa kwekhwalithi yokwakha kumele kwenziwe futhi, futhi ukuhlolwa kwe-glue endaweni kumele kwenziwe ukuqinisekisa amandla amahle okunamathela nokuqinisekisa noma yiziphi iziphakamiso mayelana ne-glue.
Ekuphathweni kwekhwalithi yokwakhiwa kwe-sealant, ukunamathela kanye nokuhambisana kwe-sealant kanye nezinto eziyisisekelo kumele kucatshangelwe, okuhlanganisa induku esekelayo, umugqa wetheyiphu ozinhlangothi zombili kanye nezinye izinto ezisizayo. Ukuze kusetshenziswe ukusebenza okuphezulu kwe-silicone sealant, kubalulekile ukukhetha ama-sealant ahlukene e-silicone ngokusekelwe ezindaweni ezahlukene zokwakha, izidingo, nezinto zokwakha, kanye namasu okwakha ajwayelekile. Amasu okwakha angajwayelekile avame ukunciphisa ukusebenza okuphezulu kwama-sealant, njengokuhlanza ubuso be-substrate, inani le-primer esetshenzisiwe, isilinganiso esingalungile, ukuxuba okungalingani kwama-sealant amabili ezingxenye, kanye nokusetshenziswa kwezixazululo noma izindlela zokuhlanza ezingalungile, okungathinta ukunamathela kwama-sealant futhi kuholele ekwehlulekeni kokunamathela, njengokukhetha okungalungile kokunamathisela okuholela kumabhamuza kanye nokushintsha kombala kwe-sealant. Ngakho-ke ukukhethwa kwe-sealant kanye nokunemba kwenqubo yokwakha kubalulekile. Ngokwethula le misebenzi, kungasiza ekukhetheni i-sealant efanele ngendlela efanele.
Isivalo Esingangeni Manzi Nesingangenisi Isimo Sezulu
Ezinye izinto zokuvala ezingezona i-silicone zithambekele ekugugeni ngokuhamba kwesikhathi nangaphansi kwethonya lezinto eziyingozi emvelweni, ikakhulukazi ngaphansi kwemisebe ye-ultraviolet. Ngakho-ke, lapho ukhetha i-sealant, kufanele kucatshangelwe isikhathi senkonzo ye-sealant. Ukuvala okungangeni manzi kusetshenziselwa ukugcwalisa izikhala phakathi kwezinto ukuze kuvinjelwe umoya, imvula, uthuli, njll. ukuthi kungadluli ezikhaleni. Ngakho-ke, i-sealant kumele inamathele ngokuphelele ku-substrate, ukuze ikwazi ukunqoba izinguquko zobukhulu bamalunga obubangelwa ukunyakaza kwe-substrate ngesikhathi sokwandiswa noma ukucindezelwa. I-OLIVIA silicone sealant inokumelana okuhle kwe-UV, ingagcina i-modulus ecishe ifane, futhi ukuqina kwayo akushintshi ngaphakathi kobubanzi bokushisa obuphakathi kuka--40 ℃ kuya ku-+150 ℃.
Ama-sealant asebenza kancane asetshenziswa kakhulu ukugcwalisa izikhala ngaphansi kwezimo eziyisisekelo ezimile ukuvimbela ukungena kothuli, imvula nomoya. Kodwa-ke, ukuncipha ngokweqile, ukuqina ngokuhamba kwesikhathi, kanye nokunamathela okubi kungathinta ukusebenza kwazo. Ukuhambisana, ukunamathela, kanye nemiphumela yamakhemikhali kumele kucatshangelwe lapho kusetshenziswa wona.
Isivalo Sesakhiwo
I-sealant esetshenziselwa ukuvala isakhiwo inamathela kakhulu ezinhlotsheni ezimbili ze-substrate. Ngesikhathi esifanayo, inganqoba ukucindezeleka okuhlangatshezwana nakho: ukucindezeleka kokucindezeleka nokucindezela, ukucindezeleka kokusika. Ngakho-ke, ngaphambi kokuvala, amandla okwakheka kwala majoyinti kufanele aqinisekiswe, ukuze azwakale ngobuningi lapho kubalwa izidingo zobunjiniyela. Amandla okwakheka avezwa ngokwe-modulus namandla okudonsa. Ama-sealant okwakheka adinga ukufinyelela ezingeni elithile lamandla. Esinye isimo esibalulekile sokuvala isakhiwo ukuthi ukubopha phakathi kwe-seal ne-substrate akulimazi ngokuhamba kwesikhathi. Ama-sealant okwakheka e-OLIVIA silicone anokusebenza okuthembekile, isikhathi eside senkonzo, futhi afaneleka ukuvala isakhiwo.
Izinyathelo Zokuqapha Zokukhetha I-Silicone Sealant Yokwakha
Ukukhetha okufanele kwe-sealant akubandakanyi nje ukukhetha izinto ezinezakhiwo zomzimba nezamakhemikhali ezifanele, kodwa futhi kucatshangelwa uhlobo nezakhiwo ze-sealing substrate, ukwakheka okuhlangene (kufaka phakathi izinto zokusekela noma ezifakiwe), ukusebenza okulindelekile, izidingo zokukhiqiza, kanye nezindleko ezingabizi kakhulu, konke okucatshangelwayo. Uhlu olulandelayo luvame ukusetshenziswa embonini yokwakha ukukhetha ama-sealant.
Ishidi Elinamathiselwe No.1
| Kudingeka ukuhamba kwamaphuzu okuxhuma |
Ukubulala isikhunta |
| Ububanzi obuncane bokuxhumeka | Ukulwa nemisebe |
| Amandla adingekayo | Izidingo zokufaka noma zokuqhuba |
| Indawo Yamakhemikhali | Imibala |
| Izinga Lokushisa Elisebenzayo | Ukumelana nokucwiliswa noma ukuhuzuka |
| Izinga Lokushisa Lokwakha | Isivinini Sokwelapha |
| Ukukhanya kwelanga kanye nokuqina kwesimo sezulu emsebenzini | Ukucwilisa emanzini okuphansi noma okuqhubekayo |
| impilo yonke | Ukufinyeleleka kwamalunga |
| Isimo sezulu esijwayelekile ngesikhathi sokufaka isicelo | I-Primer |
| Izindleko zezinto: zokuqala nezokuphila konke | Imfuneko yokuhlanza ekhethekile |
| Izindleko zokufaka | Ukoma |
| Ezinye izidingo | Eminye imikhawulo |
Isikhathi sokuthunyelwe: Agasti-02-2023
