Refractory tšepe. lesedi tsa motheo ka tungsten.

Refractory tšepe - kakaretso

Ka kakaretso, ho bua "tšepe refractory" tla utloisisa hore tsena ke tšepe hore na le e phahameng haholo le qhibilihang mocheso, ho ka finyella 4000 ° C. Molybdenum, tantalum, tungsten, niobium le rhenium - mantlha refractory tšepe. Hape lethathamo lena le ka ho phaella ka ho re, 'me ba bang - chromium vanadium, osmium, hafnium, le tšepe zirconium, ho qhibiliha mocheso fihla 2123 ° C.

tšepe Refractory tse thahasellisang thepa tsa bona. Kahoo, ho etsa mohlala, ke litsupa tsa molybdenum le tungsten thatafala etsa hore tšebeliso ea lirafshoa tsena bakeng sa mocheso kalafo ea thepa tlas'a lephaka. Products entsoe ka bang tšepe refractory na buka e ikhethang thepa, mohlala, linaleli tungsten a lula li phutholohe mocheso ho 3073 ° C.

Empa ho hanyetsa ea tšepe refractory ka ngotsoe ke go tlhoka mesola bona tse khōlō. Kopana le oksijene haholo susumetsa ka thepa mogote wa tšepe refractory. Ena ke lebaka le ka tšebeliso ea tšepe ka sehlopha sena - tikolohong e moo ba ileng ba ka ho feletseng ka thōko ho tloha moeeng.

Tungsten - motheong oa tšepe refractory ka metallurgy

Tungsten ke o mong oa e tšepe ho fetisisa refractory. The qhibiliha ntlha ea tungsten e phahame ho feta ba bang kaofela, tungsten - morethetho o boima, ho ka etsahala ho ba le kamano dikgwele e metle, e boetse e ka ho phethahetseng weldable. Tungsten ke ka seoelo tšepe, dikahare tsa lona ka karolong e ka holimo ea fihla% 0,0055 feela, ho ile ha fumanoa a manyenyane a letsatsi 'me ha ho le teng ka metsi a leoatle a ka. Empa ho tloaeleha lona hase tlaasana ho tšepe tšepe ka tlaase ho moo ka seoelo.

Tšebeliso ea tungsten

Metallic tungsten sebediswa bakeng sa thepa yarns li phutholohe, tse sebediswa ka maqheka mabone ka elements futhumatsang - ka vacuum cleaner sebopi ho hanyetsa. The phahameng segokanyipalo sa tungsten dumella ho sebelisa tšepe sena e le counterweight bakeng projectiles fapaneng. E le tungsten eleketrode sebelisoa nakong TIG tjheseletsa. Ka lits'epe tse kopantsoeng le tiileng la carbide tungsten li sebelisoa e le filler.

Tungsten ka molybdenum, le tantalum e sebelisoa e le puso ea ho lits'epe tse kopantsoeng, e leng sebelisoa likarolong tse ling tsa theknoloji e sebaka nyutlelie. le matla a ho mamella mocheso ho phahameng haholo - ka morero ka sehloohong oo lits'epe tse kopantsoeng tsena tsa bōptjoa.