Tungsten molybdenum crucible W crucible Mo crucible
Ngosipụta ngwaahịa
Dị ka igwe anaghị agba nchara, tungsten nwere nnukwu ike na ike siri ike.N'ihi na nke a 2.Main Features, tungsten carbide na elu siri ike na ike na-eyi na-eguzogide ka etinyere na ịcha ngwá ọrụ na Ngwuputa ngwá ọrụ na nnukwu ọnụ ọgụgụ.
Tungsten bụ metal refractory nwere ebe mgbaze kachasị elu.General ọla nwere ebe mgbaze dị elu karịa 1650 ℃ na ebe nchekwa ụfọdụ na ebe mgbaze dị elu karịa ebe mgbaze nke zirconium (1852 ℃) ka a na-akpọ ọla mgbaze.Ọla ndị a na-ahụkarị bụ tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, na titanium.Dị ka a refractory metal, kasị mkpa uru tungsten bụ na o nwere ezi elu okpomọkụ ike na ezi corrosion iguzogide ọla alkali a wụrụ awụ na vepo.Ọ na-egosi naanị n'elu 1000 ℃.Molybdenum na tungsten nwere ihe ndị yiri ya, ebe a na-esi esi esi na ọkụ eletrik, obere ọnụọgụ mgbasawanye ọkụ linear, na mfe nhazi karịa tungsten.
Thermal conductivity nke molybdenum metal [135 watts / (m · open)] na-arụ ọrụ kasị mma na kpọmkwem okpomọkụ [0.276 kJ / (kg · open)], na-eme ka ọ bụrụ ihe eke nhọrọ megide thermal ujo na thermal ike ọgwụgwụ.Ebe agbaze ya bụ 2620 ℃, nke abụọ na tungsten na tantalum, mana njupụta ya dị obere, yabụ ike ya (ike / njupụta) dị ukwuu karịa tungsten, tantalum na ọla ndị ọzọ, nke dị irè na ngwa nwere oke ibu chọrọ.Molybdenum ka nwere ike dị elu na 1,200 ℃.
Isi atụmatụ
Tungsten nwere ebe mgbaze dị elu, ikuku uzuoku dị obere, yana obere ikuku evaporation.Njirimara kemịkalụ nke tungsten kwụsiri ike, ọ naghị arụ ọrụ ikuku na mmiri n'ime ụlọ okpomọkụ, enweghị ike ime na hydrochloric acid, sulfuric acid, nitric acid na ngwọta alkali.Igbari na mmiri eze na ngwakọta nke nitric acid na hydrofluoric acid.Na oke okpomọkụ, ọ nwere ike jikọta ya na chlorine, bromine, iodine, carbon, nitrogen, sọlfọ, ma ọ bụghị na hydrogenation.Ebe mgbaze tungsten dị ọcha ruru 3410 ℃, nke ka nwere ike dị elu na ihe dịka 1300 ℃, ebe tungsten dabere na alloy nwekwara ike dị elu na ihe dịka 1800 ℃ ma nwee ezigbo nguzogide mmetụta ọkụ.
Ngwa ngwaahịa
N'ihi na elu njupụta nke tungsten, High hardness, N'ihi ya, ọ na-aghọ ihe ezigbo ihe maka ime elu kpọmkwem ike ndọda alloys, Ndị a elu kpọmkwem ike ndọda alloys na-ekewa n'ime W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag na ndị ọzọ isi usoro, ụdị alloy nwere2.Main Atụmatụs nke elu ruru, elu ike, ike absorption radieshon ike, nnukwu thermal conductivity, obere thermal mgbasa ọnụọgụ, ezi eletriki conductivity, weldability na ezi processability, A na-eji ọtụtụ ebe aerospace, ụgbọ elu, agha, mmanụ mkpọ ala, ngwá electronic, ọgwụ na ndị ọzọ. ụlọ ọrụ, dị ka ngwá agha na-arụpụta ihe, sink okpomọkụ, hama na-achịkwa rudder itule na kọntaktị ihe dị ka mma mgba ọkụ, sekit breaker, ntụpọ ịgbado ọkụ electrode, wdg.
Ebe eletrọnịkị
Tungsten nwere ike plasticity, obere evaporation ọsọ, nnukwu agbaze ebe na ike electron emission ike, ya mere tungsten na alloys ya na-ọtụtụ ebe na eletrọnịkị na ike ọkọnọ ụlọ ọrụ.Dị ka ihe atụ, tungsten waya nwere a elu luminous ọnụego na ogologo ọrụ ndụ, n'ihi ya, ọ na ọtụtụ-eji na mmepụta nke dị iche iche bọlbụ filament, dị ka incandescent oriọna, ayodiin tungsten oriọna, tungsten waya nwekwara ike-eji na n'ichepụta kpọmkwem na-ekpo ọkụ cathode na. ọnụ ụzọ ámá nke elektrọn oscillator tube na ngwá electronic dị iche iche na n'akụkụ thermal cathode okpomọkụ.Nke2.Main Atụmatụs nke tungsten na-eme ka ọ dịkwa mma maka ịgbado ọkụ TIG na ihe ndị ọzọ electrode maka ọrụ yiri ya.
Ụlọ ọrụ kemịkalụ
A na-ejikarị ogige Tungsten eme ihe dị ka ihe na-emepụta ihe na agba agba, dị ka tungsten disulfide ka a na-eji mmanụ aṅụ na-eme ka mmanụ aṅụ sịntetik, bronze tungsten oxide na-eji eserese, calcium ma ọ bụ magnesium tungsten na-ejikarị na phosphor.
Mpaghara ndị ọzọ
N'ihi na tungsten yiri enyo boryl silicate, a na-eji ya eme iko ma ọ bụ akara ọla.Tungsten nwere mmetụta dị ala ma jiri ya mee ọla edo tungsten dị ọcha.Na mgbakwunye, a na-ejikwa tungsten na ọgwụ redioaktivu, ụfọdụ ngwa ga-ejikwa waya tungsten.
