Izitulo ze-tungsten ye-tungsten, njengezinto eziphakamileyo zokutywina kweenkqubo ze-valve, zihlala indawo ebaluleke kakhulu kwicandelo lemizi-mveliso ngenxa yeempawu zabo zokusebenza. Ngokuqulunqwa kwezinto eziphathekayo, i-tungsten carbide, isitulo sibonisa ukuqina okukhethekileyo kunye nokuziqhelanisa, ukwenza ukuba ukhetho lokuqala kwizicelo ezininzi zemveliso.
Okokuqala, izitulo ze-tungsten zaziwa ngokuba nzima kwabo kwaye kudlule. Kwixinzelelo oluphezulu, iindawo eziphakamileyo zemithombo yeendaba, izixhobo zokuhlalisa zemveli zihlala zinzima ukuzimela kwaye zinxibe, ngelixa i-tungsten ye-tungsten ingamelana nokuhlisela ukukhukuliseka kwezi meko zintle. Oku kwenza ukuba izihlalo ze-carbide zibhetele ngokwendlela yokwandisa ubomi bevelve kunye nokunciphisa iindleko zesondlo.
Okwesibini, ukuxhathisa i-corrosion kukwakwisihlalo se-carbide. Kwimichiza, ipetroleum kunye namanye amashishini, ukugqabhuka okuphakathi kombhobho kusoloko kubonakala kakhulu, nto leyo ebeka phambili iimfuno eziphezulu kakhulu kwizinto zokuhlala zebhotile. Ngokuzinza kwayo okugqwesileyo, i-tungsten carbide inokusebenza ixesha elide kwezi ndawo zinzima ngaphandle komonakalo kunye nomonakalo, ukuqinisekisa ukhuseleko kunye nokuthembeka kwenkqubo ye-valve.
Ukongeza, isihlalo se-carbide sinokumelana kakuhle kumaqondo obushushu aphezulu. Kwiinkqubo ezininzi zemizi-mveliso, iqondo lobushushu le-Medium linokunyuka ngokusa kakhulu, nto leyo ecela ukuxhathisa ubushushu bezixhobo zokuhlala. Inqaku layo eliphezulu lokunyibilika kunye nokuzinza okuphezulu kwe-subble, i-carbide yesandla inokugcina ukusebenza okuzinzileyo kubume obuphezulu, ngaphandle kokusebenza kunye nokuqhekeka, ukuqinisekisa ukusebenza kwesiqhelo kwe-valve phantsi kweemeko eziphezulu zobushushu obungaphantsi kwe-valu.
IXESHA LOKUQALA: USep-26 ukuya ku-2624