ISISHWANKATHELO
Ukukhetha ngokuchanekileyo isitywini kufuneka kuqwalasele injongo yesixhumi, ubungakanani bokuguqulwa kwesixhumi, ubungakanani besixhumi, isiseko sesixhumi, imeko-bume apho izixhumi zidibana khona, kunye neempawu zoomatshini ekufuneka isitywini sizifezekise. Phakathi kwazo, ubungakanani besixhumi bumiselwa luhlobo lwesixhumi kunye nobungakanani obulindelekileyo bokuguqulwa kwesixhumi.
Ukuqinisekisa ubomi benkonzo efanelekileyo kunye nokusebenza kakuhle kwesitywini, ukhetho oluchanekileyo lwesitywini kufuneka luqwalaselwe ngononophelo. Ngokubanzi, amanyathelo amathathu anokuthathwa ukuqinisekisa ukuba isitywini sifikelela kubomi baso obufanelekileyo boyilo.
- 1. Yila imithungo ngokwesayensi nangokufanelekileyo ngokweemfuno zokusetyenziswa kunye nokusingqongileyo;
- 2. Chonga izalathisi zokusebenza ekufuneka i-sealant ihlangabezane nazo kwi-interface eyilelweyo;
- 3. Ngokusekelwe kwizalathisi zokusebenza ezichongiweyo, kuyacetyiswa ukuba ukhethe iglu kwaye wenze uvavanyo lokuhambelana kunye nokunamathela okufunekayo ukuqinisekisa ukuba imveliso ekhethiweyo iyahlangabezana neemfuno.
Izitywini zokwakha zenza le misebenzi mithathu ilandelayo ngenkqubo yokubopha:
- 1. Uyakwazi ukuvala umsantsa phakathi kweziseko ezimbini nangaphezulu ukuze enze isitywino:
- 2. Ukwenza umqobo ngokusebenzisa iimpawu zayo ezibonakalayo kunye nokunamathela kwisiseko
- 3. Gcina ukuqina kokuvala phantsi kwexesha elifanelekileyo, iimeko zokusebenza, kunye nendawo engqongileyo.
Izinto eziphambili ezimisela umsebenzi we-sealant ziquka amandla ayo okushukuma, iimpawu zoomatshini, ukunamathela, ukuqina, kunye nembonakalo. Iimpawu zoomatshini nezoomatshini zibhekisa ikakhulu kwizalathisi ezinje ngokuqina, i-elastic modulus, amandla okutsalwa, ukumelana nokukrazuka, ukuqina, kunye nesantya sokubuyisela i-elastic. Xa usebenzisa i-sealant, iimfuno eziphambili zokusetyenziswa ekufuneka ziqwalaselwe lixesha elingasetyenziswanga, ixesha lokukhupha i-bonding, ukugoba, ixesha lokuphelelwa yishelufu (kwizinto ezimbini ezincamathelayo), ukukhutshelwa ngaphandle, isantya sokupholisa esinzulu, ukungafaki igwebu, ixabiso, umbala, kunye nokuncipha okuthe tye ngexesha lokupholisa; Kwangaxeshanye, kuyimfuneko ukuqwalasela iimpawu zokuguga ze-sealant, kubandakanya ukumelana kwayo nemisebe ye-UV, iimpawu zoomatshini zobushushu obuphezulu nobuphantsi, i-thermal hydrolysis, ukuguga kobushushu, kunye nokumelana ne-oxidation.
Ukuncamathela yinkqubo equka ukulungiswa, ukusetyenziswa, ukucocwa, kunye nokugcinwa kwe-sealant. Umgangatho wokusebenza kwe-glue unxulumene ngokuthe ngqo nezinto zokubopha, i-sealant, kunye nenkqubo yokuncamathela. Ke ngoko, xa kusenziwa ulwakhiwo, impembelelo yezinto ezintathu kufuneka iqwalaselwe ngokupheleleyo. Kuphela ngokulungelelanisa izinto ezintathu ngokufanelekileyo nangokuzidibanisa ngokwendalo apho ukunamathela okufanelekileyo kunokufezekiswa, kwaye nayiphi na ingxaki kuyo nayiphi na ikhonkco inokukhokelela ekungaphumeleli kokunamathela.
I-silicone sealant esetyenziswa ekwakheni ikakhulu ibonelela ngokutywinwa okuxhathisa imozulu kunye nokutywinwa kwesakhiwo. Ukongeza kuyilo oluhle lwe-interface, iinkcukacha zenkqubo yokwakha ezihambelanayo kufuneka zilandelwe ngexesha lenkqubo yokwakha.
Kukho iimfuno ezintlanu ezisisiseko zonyango olufanelekileyo lomphezulu we-interface kunye negluing:
- Umphezulu womphezulu kufuneka ucoceke, wome, ungabi naluthuli okanye iqabaka;
- Ukuba kuyimfuneko i-primer, kufuneka isetyenziswe kumphezulu ococekileyo;
- Sebenzisa izinto eziphuma ngasemva okanye iteyiphu yokuncamathelisa njengoko kufuneka;
- Xa usebenzisa i-sealant, kuyimfuneko ukugcwalisa isithuba se-interface nge-sealant;
- Ukukrwela kukuqinisekisa ukuba imithungo igudileyo, imo echanekileyo, kunye nokudibana ngokupheleleyo nesiseko.
I-silicone sealant nayo ingathathwa njenge-adhesive ngenxa yesakhiwo sayo seekhemikhali. I-silicone sealing adhesion yi-chemical reaction yendalo, ngoko ke amanyathelo okusebenzisa achanekileyo abaluleke kakhulu. Ngenxa yokusetyenziswa kwe-OLIVIA silicone sealant kwiindawo ezahlukeneyo nakwiindawo ezahlukeneyo, iinkcukacha zenkqubo yokwakha azinakuthathwa njengenkqubo epheleleyo nepheleleyo yokuqinisekisa umgangatho. Ulawulo lomgangatho wokwakha kufuneka lwenziwe, kwaye uvavanyo lwe-adhesive kwindawo kufuneka lwenziwe ukuqinisekisa amandla amahle e-adhesive kunye nokuqinisekisa naziphi na iingcebiso malunga ne-adhesive.
Kulawulo lomgangatho wolwakhiwo lwe-sealant, ukunamathela kunye nokuhambelana kwe-sealant kunye nezinto ezisisiseko kufuneka kuqwalaselwe, kubandakanya intonga exhasayo, i-tape strip enamacala amabini kunye nezinye izinto ezincedisayo. Ukuze kusetyenziswe ukusebenza okuphezulu kwe-silicone sealant, kuyimfuneko ukukhetha ii-sealants ezahlukeneyo ze-silicone ngokusekelwe kwiindawo ezahlukeneyo zokwakha, iimfuno, kunye nezixhobo, kunye neendlela zokwakha ezisemgangathweni. Iindlela zokwakha ezingalinganiyo zihlala zithintela ukusebenza okuphezulu kwee-sealants, njengokucoca umphezulu we-substrate, ubungakanani be-primer esetyenzisiweyo, umlinganiselo ongafanelekanga, ukuxuba okungalinganiyo kwee-sealants ezimbini, kunye nokusetyenziswa kwe-solvents okanye iindlela zokucoca ezingalunganga, ezinokuchaphazela ukunamathela kwee-sealants kwaye zikhokelele ekusileleni kokunamathela, njengokukhetha okungafanelekanga kokunamathela okukhokelela kumaqamza kunye nokutshintsha kombala we-sealant. Ngoko ke ukukhetha i-sealant kunye nokuchaneka kwenkqubo yokwakha kubalulekile. Ngokwazisa le misebenzi, kunokunceda ukukhetha i-sealant efanelekileyo ngokuchanekileyo.
Isitywina esingangeni manzi nesingenawo ubushushu
Ezinye izinto zokuvala ezingezizo iisilicone zidla ngokwaluphala ngokuhamba kwexesha kwaye ziphantsi kwempembelelo yezinto eziyingozi kwindalo esingqongileyo, ingakumbi phantsi kwemitha ye-ultraviolet. Ke ngoko, xa ukhetha i-sealant, kufuneka kuqwalaselwe ubomi benkonzo ye-sealant. Ukuvalwa okungangeni manzi kusetyenziselwa ukuvala izithuba phakathi kwezinto ukuthintela umoya, imvula, uthuli, njl.njl. ukuba zingadluli kwizikhewu. Ke ngoko, i-sealant kufuneka inamathele ngokupheleleyo kwi-substrate, ukuze ikwazi ukoyisa utshintsho kubungakanani bamalungu obubangelwa kukuhamba kwe-substrate ngexesha lokwandiswa okanye ukucinezelwa. I-OLIVIA silicone sealant inokumelana okuhle kwe-UV, inokugcina i-modulus engaguqukiyo, kwaye ukuthamba kwayo akutshintshi kumanqanaba obushushu ukusuka kwi--40 ℃ ukuya kwi-+150 ℃.
Izitywini ezingasebenzi kakuhle zisetyenziswa kakhulu ukuvala izikhewu phantsi kweemeko ezisisiseko zokungashukumi ukuthintela ukungena kothuli, imvula nomoya. Nangona kunjalo, ukuncipha kakhulu, ukuqina ngokuhamba kwexesha, kunye nokunamathela kakubi kunokuchaphazela ukusebenza kwazo. Ukuhambelana kwazo, ukunamathela, kunye nemiphumo yeekhemikhali kufuneka kuqwalaselwe xa uzisebenzisa.
Isitywino sesakhiwo
I-sealant esetyenziselwa ukutywina isakhiwo inamathela kakhulu kwiintlobo ezimbini ze-substrates. Kwangaxeshanye, inokoyisa uxinzelelo oludibana nalo: uxinzelelo kunye noxinzelelo lokucinezelwa, uxinzelelo lokucheba. Ke ngoko, ngaphambi kokutywina, amandla olwakhiwo lwala majoyinti kufuneka aqinisekiswe, ukuze abonakaliswe ngobuninzi xa kubalwa iimfuno zobunjineli. Amandla olwakhiwo abonakaliswa ngokwe-modulus kunye namandla okutsalwa. I-sealants yolwakhiwo kufuneka ifikelele kwinqanaba elithile lamandla. Enye imeko ebalulekileyo yokutywina isakhiwo kukuba ukubopha phakathi kwe-seal kunye ne-substrate akulimazi ngokuhamba kwexesha. I-OLIVIA silicone structural sealants inokusebenza okuthembekileyo, ubomi benkonzo ende, kwaye ifanelekile ukutywina isakhiwo.
Amanyathelo okuzikhusela xa ukhetha iSilicone Sealant yokwakha
Ukukhetha ngokuchanekileyo isitywini akubandakanyi nje kuphela ukukhetha izinto ezineempawu zomzimba nezekhemikhali ezifanelekileyo, kodwa kukwaqwalasela uhlobo kunye neempawu zesiseko sokutywina, uyilo oludibeneyo (kuquka inkxaso okanye izinto ezifakwe ngaphakathi), ukusebenza okulindelekileyo, iimfuno zemveliso, kunye neendleko ezingabizi kakhulu, zonke eziqwalaselwayo. Olu luhlu lulandelayo lusetyenziswa rhoqo kwishishini lokwakha ukukhetha izitywini.
Iphepha eliqhotyoshelweyo No.1
| Kufuneka ukuhamba kweendawo zokudibanisa |
Ukubulala iifungi |
| Ububanzi obuncinci boqhagamshelo | Ukuthintela ukusasazeka kwemitha |
| Amandla afunekayo | Iimfuneko zokufaka okanye zokuqhuba |
| Imekobume yeekhemikhali | Imibala |
| Ubushushu bokusebenza | Ukuxhathisa ukumanzisa okanye ukurhawuzelelwa |
| Ubushushu bokwakha | Isantya Sokunyanga |
| Ukukhanya kwelanga kunye nobushushu obuphezulu emsebenzini | Ukuntywila emanzini okusemgangathweni ophantsi okanye okuqhubekayo |
| Ubomi bonke | Ukufikeleleka kwamalungu |
| Imozulu eqhelekileyo ngexesha lokufaka isicelo | I-Primer |
| Iindleko zezinto eziphathekayo: zokuqala nezobomi bonke | Imfuneko ekhethekileyo yokucoca |
| Iindleko zokufakela | Ukoma |
| Ezinye iimfuno | Eminye imiqathango |
Ixesha lokuthumela: Agasti-02-2023
