I-molybdenum eningi isetshenziswa minyaka yonke kunanoma iyiphi enye insimbi ephikisayo.Ama-ingots e-molybdenum, akhiqizwa ngokuncibilika kwama-electrode e-P/M, ayakhishwa, agingqelwe abe ishidi kanye nenduku, futhi kamuva adonswe kwezinye izimo zomkhiqizo wokugaya, njengocingo neshubhu.Lezi zinto zingabe sezigxivizwa zibe izimo ezilula.I-Molybdenum nayo yenziwa ngomshini ngamathuluzi ajwayelekile futhi ingaba i-gas tungsten arc kanye ne-electron beam eshiselwe, noma ibrazed.I-Molybdenum inamandla avelele kagesi nawokubamba ukushisa namandla aphakeme uma kuqhathaniswa.I-thermal conductivity icishe ibe ngu-50% ephakeme kunaleyo yensimbi, insimbi noma i-nickel alloys.Ngenxa yalokho ithola ukusetshenziswa okubanzi njengama-heatsink.I-conductivity yayo kagesi iphakeme kakhulu kuzo zonke izinsimbi eziphikisayo, cishe ingxenye eyodwa kwezintathu eyethusi, kodwa iphakeme kune-nickel, iplatinum, noma i-mercury.I-coefficient yokunwetshwa okushisayo kweziqephu ze-molybdenum cishe ngokuhambisana nezinga lokushisa phezu kwebanga elibanzi.Lesi sici, ngokuhlangene sizophakamisa amandla okuphatha ukushisa, ama-akhawunti wokusetshenziswa kwawo ku-bimetal thermocouples.Izindlela ze-doping molybdenum powder ene-potassium aluminosilicate ukuze uthole i-non-sag microstructure efana ne-tungsten nayo yenziwe.
Ukusetshenziswa okukhulu kwe-molybdenum kufana ne-alloying ejenti ye-alloy nezinsimbi zamathuluzi, izinsimbi ezingagqwali, nesisekelo se-nickel-base noma i-cobalt-base super-alloys ukukhulisa amandla ashisayo, ukuqina nokumelana nokugqwala.Ezimbonini zikagesi neze-elekthronikhi, i-molybdenum isetshenziswa kuma-cathodes, izisekelo ze-cathode zamadivayisi we-radar, umkhondo wamanje wama-thorium cathodes, izigqoko zokuphela zikamagnetron, nama-mandrel emicu ye-tungsten esontayo.I-Molybdenum ibalulekile embonini yezikhali ezicitshwayo, lapho isetshenziselwa izingxenye zesakhiwo ezishisa kakhulu, njengama-nozzles, imiphetho ehamba phambili yezindawo zokulawula, ama-vanes asekelayo, ama-struts, ama-reentry cones, izivikelo zokupholisa imisebe, osinki bokushisa, amasondo omoya, namaphampu. .I-Molybdenum iphinde yaba usizo ezimbonini zenuzi, zamakhemikhali, zengilazi, nezensimbi.Amazinga okushisa esevisi, ama-alloys e-molybdenum ezinhlelweni zokusebenza ze-arc, anomkhawulo wesilinganiso esiphezulu esingaba ngu-1650°C (3000°F).I-molybdenum ehlanzekile inokumelana okuhle ne-hydrochloric acid futhi isetshenziselwa isevisi ye-asidi ezimbonini zezinqubo zamakhemikhali.
I-Molybdenum Alloy TZM
Ingxubevange ye-molybdenum ebaluleke kakhulu kwezobuchwepheshe ingxubevange yamandla aphezulu, izinga lokushisa eliphezulu i-TZM.Izinto ezisetshenziswayo zikhiqizwa ngezinqubo ze-P/M noma ze-arc-cast.
I-TZM inezinga lokushisa eliphakeme lokwenziwa kabusha kwekristalu namandla aphakeme nobulukhuni ekamelweni kanye namazinga okushisa aphakeme kune-molybdenum engahlanganisiwe.Iphinde ibonise i-ductility eyanele.Izakhiwo zayo eziphakeme zemishini i-arc ngenxa yokuhlakazeka kwe-carbides eyinkimbinkimbi ku-matrix ye-molybdenum.I-TZM ifaneleka kahle ekusebenzeni okushisayo ngenxa yokuhlanganiswa kwayo kokuqina kokushisa okuphezulu, ukuguquguquka kwe-thermal ephezulu, nokwanda okuphansi kokushisa kwezinsimbi ezishisayo.
Ukusetshenziswa Okukhulu Kuhlanganisa
Izinto ezifakwayo zokuphonsa i-aluminium, i-magnesium, i-zinc, nensimbi.
Imibhobho yerokhethi.
Imizimba yokufa kanye nezibhakela zokunyathela okushisayo.
Amathuluzi okusebenza ngensimbi (ngenxa yokuhuzuka okuphezulu kanye nokumelana nengxoxo kwe-TZM).
Izihlangu zokushisa ezithandweni, izingxenye zesakhiwo, nezinto zokufudumeza.
Emzamweni wokuthuthukisa amandla okushisa aphezulu we-P/M TZM alloys, ama-alloys akhiwe lapho i-titanium ne-zirconium carbide ithathelwa indawo yi-hafnium carbide.Ama-alloys e-molybdenum ne-rhenium angama-ductile amaningi kune-molybdenum ehlanzekile.Ingxubevange eno-35% Re ingagoqeka endaweni yokushisa ibe ngaphezu kwama-95% ekuncipheni kogqinsi ngaphambi kokuqhekeka.Ngenxa yezizathu zezomnotho, ama-alloys e-molybdenum-rhenium awasetshenziswa kakhulu kwezohwebo.Ama-alloys e-molybdenum ano-5 no-41% Re asetshenziselwa izintambo ze-thermocouple.
Isikhathi sokuthumela: Jun-03-2019