Sida aan ognahay, saxannada isku-beddelka kulaylka saxanka dhexdiisa, saxanka titanium-ku waa mid gaar ah sababtoo ah iska caabbinta aadka u fiican ee daxalka. Xulashada gasket-ka, gasket-ka viton wuxuu caan ku yahay iska caabbinta aashitada iyo alkali iyo kiimikooyinka kale. Markaa ma loo isticmaali karaa si wadajir ah si loo hagaajiyo iska caabbinta daxalka ee isweydaarsiga kulaylka saxanka?
Xaqiiqdii, saxanka Titanium iyo gasket-ka viton lama wada isticmaali karo. Laakiin maxaa? Waa mabda'a iska caabbinta daxalka ee saxanka titanium in labada shay aan la wada isticmaali karin, sababtoo ah saxanka titanium-ku waa mid si fudud loogu samayn karo lakab filim ilaalin ah oo titanium oxide ah oo cufan oo dusha sare ah, lakabkan filimka oksaydhka ah si dhakhso ah ayaa loogu samayn karaa deegaanka ay ku jirto oksijiinta ka dib burburka. Tanina waxay u oggolaanaysaa burburka iyo hagaajinta (dib-u-soo-celinta) filimka oksaydhka in lagu hayo xaalad deggan, iyadoo la ilaalinayo walxaha titanium-ka ee gudaha ku jira si loo sameeyo burbur dheeraad ah.
Sawir caadi ah oo daxalka godka ah
Si kastaba ha ahaatee, marka birta titanium ama daawaha ku jira deegaanka ay ku jirto fluorine, iyadoo ay ku jiraan falgalka aayoonka haydarojiin ee biyaha, aayoonka fluoride ee ka yimaada gasketka viton wuxuu la falgalaa titanium-ka birta si uu u soo saaro fluoride milmi kara, taasoo ka dhigaysa godka titanium-ka. Isle'egta falgalka waa sidan soo socota:
Ti2O3+ 6HF = 2TiF3+ 3H2O
TiO2+ 4HF = TiF4+ 2H2O
TiO2+ 2HF = TiOF2+ H2O
Daraasado ayaa lagu ogaaday in xalka aashitada, marka fiirsashada aayada fluoride ay gaarto 30ppm, filimka oksaydhka ee dusha sare ee titanium-ka waa la burburin karaa, taasoo muujinaysa in xitaa haddii fiirsashada aayada fluoride ay si weyn u yareyn doonto iska caabbinta daxalka ee taarikada titanium-ka.
Marka birta titanium-ka aan lahayn ilaalinta titanium oxide, jawiga daxalka leh ee ka kooban hydrogen ee isbeddelka hydrogen-ka, titanium-ku wuxuu sii wadi doonaa inuu nuugo hydrogen-ka, falcelinta REDOX-na way dhacdaa. Dabadeed TiH2 waxaa laga sameeyaa dusha sare ee kiristaalka titanium-ka, kaas oo dedejiya daxalka saxanka titanium-ka, isagoo sameeya dildilaacyo oo horseeda daadashada qalabka kulaylka saxanka.
Sidaa darteed, qalabka kuleylka saxanka lagu beddelo, saxanka titanium iyo gasket-ka viton waa in aan la wada isticmaalin, haddii kale waxay horseedi doontaa daxal iyo fashil ku yimaada qalabka kulaylka saxanka.
Shirkadda Shanghai Heat Transfer Equipment Co., Ltd. (SHPHE) waxay leedahay khibrad adeeg oo qani ah oo ku saabsan warshadaha sarrifka kulaylka saxanka, waxayna sidoo kale leedahay shaybaarro jireed iyo kiimiko oo la xiriira, kuwaas oo si dhakhso leh oo sax ah u go'aamin kara agabka saxanka iyo gasketka macaamiisha marxaladda hore ee xulashada, si loo hubiyo hawlgalka ammaan ah oo la isku halleyn karo ee qalabka.
Waqtiga boostada: Febraayo-17-2022