Lisebelisoa tsa PTFE Rod

Lethathamo la PTFELikarolo: Mocheso oa mocheso oa tšebeliso o pharaletseng haholo (Celsius ho tloha - 200 degrees ho ea ho +260 degrees);Ho bola ha ntho ea lik'hemik'hale tse khahlanong le bongata, ntle le fluoride le alkalinity moltenmetal; Thepa e ntle ea mochini, ho hanyetsa botsofali; Ho hanyetsa lelakabe ho fetisisa (Ho lumellana le ASTM-D635 le mohato oa teko oa D470), moeeng o lokelang ho laoloa e le thepa e thibelang mollo; e tlase haholo. ho monya metsi……

PTFE-polytetrafluoroethylene e ile ea sibolloa ke Dr. Roy Plunkett oa DuPont Research Laboratory ka April 6, 1938. PTFE ea pele e ile ea ntlafatsoa hape ke Dupont 'me ea lokolloa e le sehlahisoa ka 1945.

Sehlahisoa se hanyetsana haholo le ho bola ha lik'hemik'hale 'me se khona ho sebetsana le mocheso o ka holimo ho 500 ° C. E 'ngoe ea lintho tsa pele tsa ntlo tsa PTFE ke "PTFE coated frying pan".Le hoja pitsa e sebetsa hantle haholo, e fapane le lithupa tsa PTFE le lipoleiti tseo re fanang ka tsona.E fafatsoa holim'a litlolo tse batlang li ntšo, lithupa tsa PTFE tse hloekileng le lishiti tse ka har'a sephutheloana sa PTFE round bar steam valve e bosoeu bo khanyang mokhoa oa ho sebelisa liindasteri tsa PTFE lithupa tsa polasetiki mokhoa oa ho sebelisa liindasteri tsa PTFE lithupa tsa polasetiki tsa PTFE li-gaskets le liphutheloana tsa mouoane.

Hobane PTFE e na le mocheso o phahameng le khanyetso ea lik'hemik'hale, hangata e sebelisoa bakeng sa lisebelisoa tsa valve.Ho tloha ho li-valve tse bonolo tsa mouoane / metsi a chesang ho ea mocheso o phahameng, liindasteri tse sebetsanang le metsi a nang le lik'hemik'hale tsa lik'hemik'hale.Thepa ena e thata ho isa ho polasetiki e thata 'me e ka etsoa habonolo - e' ngoe ea tse bonolo ho sebelisa polasetiki.The PTFE molamu ka machined ka ho tolerances haufi haholo ka ho fetisisa nyenyane bophara melamu le bophara ba +.002 “/ — .00”.Ho hanyetsa lik'hemik'hale ke e 'ngoe ea lintho tse ka sehloohong tse amanang le thepa.Ka li-flakes kapa li-flakes, PTFE e sebelisoa e le thepa ea gasket bakeng sa mocheso o phahameng le li-flange tse hanyetsanang le lik'hemik'hale le litiiso.