Itywina sisiseko sokutywina esiya kuhambelana nobume bomgangatho wokutywina, akukho lula ukuhamba, kwaye unomthendeleko othile. Kukuhenyuza kusetyenziselwa ukuzalisa izithuba phakathi kwezinto ukudlala indima yokutywina. Inemisebenzi yokulwa i-anti-ukuvuza, ukulwa amanzi, i-anti-fibiration, i-insulven kunye nokufakelwa okushushu.
Ihlala isekwe kwizixhobo ezomileyo okanye ezingayo eyomileyo ezifana ne-asphalt, i-resin yendalo okanye i-resin yendalo, irabha yendalo okanye irabha yendalo. Yenziwe ngeefilimu ze-Intert ezinje nge-talc, udongwe, i-carbon emnyama, i-titanium dioxide kunye ne-asbestos, kwaye iyongeza iiarhente, ii-Sollohers, iiarhente, njl.
Ukuhlelwa kwamatywina
Itywina linokwahlulwa libe li-Elastity Searlant, i-gasket yolwelo oluyitywina kunye neendidi ezintathu zokutywina.
Ngokutyumba ukuhlelwa kweekhemikhali:Inokwahlulwa kudidi lwerabha, uhlobo lokuphinda lube njalo, uhlobo olusekwe kwi-oyile kunye ne-polymer yendalo yendalo. Le ndlela yokwazisa inokufumana iimpawu zezinto zepolymer, zithintela ukunganyange kobushushu, ukutywina nokuziqhelanisa nemithombo yeendaba ezahlukeneyo.
Uhlobo lwerabha:Olu hlobo lwetywina lusekwe kwirabha. I-rubbers esetyenziswayo i-polysullulfide irabha, irabha ye-silicone irabha, irabha ye-polyurethane, irabha ye-neoprene irabha kunye ne-butyuber irabha.
Uhlobo lwe-resin:Olu hlobo lwetywina lusekwe kwi-resin. I-resins esetyenziswayo i-epoxy resin, i-polyester engadibaniyo, i-phenolin restin, i-polyacyric vide, i-polyvinyl chlorin vide, njl.
I-oyile esekwe:Olu hlobo lokutywina lusekwe kwioyile. Ioyile esetyenziswayo isetyenziswa imifuno eyahlukeneyo yemifuno efana neoyile yelifa, ioyile ye-casartor kunye neoyile ye-tung, kunye neoyile yezilwanyana ezinjengeoyile yentlanzi.
Ukwahlulahlulwa ngokwesicelo:Inokwahlulwa yanguhlobo lobushushu oluphezulu, uhlobo lokungaxhathisi olubandayo, uhlobo loxinzelelo njalo.
Ukwahlulahlulwa ngokweempawu zokwenza ifilimu:Inokwahlulwa kuhlobo lomenzi bomileyo, uhlobo olwenziwe luchwetheza, uhlobo olungelulo olungeyowomileyo kunye nohlobo lwe-viscoelistic eyomileyo.
Ukwahlulahlulwa ngokusetyenziswa:Inokwahlulwa ibe kukwakha itywirha, i-sublant yokutywina, i-subser serilant, yokupakisha itywina, imigodi yemigodi kunye nezinye iintlobo.
Ngokwendlela yokusebenza emva kokwakha:Inokwahlulwa ibe ziindidi ezimbini: ukunyanga itywina kunye neselula. Phakathi kwazo, ukunyanga isitywina kunokwahlulwabekiswe ngokuba yingqongqo kwaye siguqukele. Itywina eliqinileyo liqinile emva kokuziqhelanisa nokuziqhelanisa nokuziqhelanisa, kwaye kunqabile ukuba ineengxaki, kwaye ihlala i-seams ayinakushukunyiswa; Izityholo eziguquguqukayo zithambile kwaye zithambile emva kokungazinzanga. Itywina elingeyonto ityhutyha itywina elithambileyo eliqinileyo elisagcina iswiti le-nolomayo emva kokwakha kwaye ngokuqhubekayo ifudukela kwimo yomhlaba.
IXESHA LOKUQALA: NgoFebwe-18 ukuya kwi-1822