Muaj ntau yam kev siv Tantalum hlau thiab alloys. Hauv qab no yog paub meej txog machining Tantalum xws li welding, zom, spinning thiab ntau dua!
Xa thiab Milling
Hauv lathe haujlwm, cemented carbide cuab yeej uas muaj tej speeds yuav tsum siv. Cov cuab yeej yuav tsum khaws ntse thiab av nrog ntau rake li cov cuab yeej yuav to taub. Tib rakes thiab angles siv tooj liab yuav satisfactory. Yam tsawg kawg nkaus 100 qhov chaw taw ib feeb yuav ua hauj lwm rau feem ntau txoj siav haujlwm. Qeeb speeds yuav ua rau cov hlau los kua muag. Ib tug kom covricant yuav tsum siv raws li ib tug nruab nrab nruab nrab thiab cov chaw ua hauj lwm yuav tsum tau nyab txhua lub sij hawm. Yeej tib yam txheej txheem yuav tsum siv thaum milling drilling taping los yog threading tantalum. Staggered tus hniav hom milling cutters nrog ntau yam pauv loj rov qab thiab sab nyem yog pom zoo. Thaum xyuas los yog taps siv, Lawv yuav tsum tau khaws tej daim chips thiab khaws kom huv si tau. Thaum drilling, Tus taw tes ntawm tus drill yuav tsum relieved kom nws tsis rub cov khoom. Threading yog zoo ua rau ib lathe es ib treading tuag.
zom
Grinding tantalum yog ib qho nyuaj heev. Grinding annealed tantalum yog yuav luag tsis yooj yim sua. Tiam sis, Txias ua haujlwm tantalum yuav av uas txwv siv aluminum oxide Norton 38A-60 log los yog sib npaug.
Welding
Vim tantalum lub affinity rau gettering, Tej fusion weld yuav tsum tau nyob rau hauv ib cov cua dawb ntawm contamination. Qhov no yuav tsum tsis zoo xwb tus weld puddle, Tab sis tag nrho cov hlau yuav tsum tiv thaiv. Muaj plaub txoj kev siv los tswj kev tiv thaiv.
Electron Beam Welding – yuav tsum tau ua ntej cov khoom siv. Feem ntau welding yog ua nyob rau hauv ib lub nqus tsev chamber. Electron Beam Welding ua excellent zoo welds uas yog characterized los nqaim weld aav thiab zoo penetration. Nws yuav pab tau kom muaj intricate, tawv kom mus zoo raws weld, Tshwj xeeb tshaj yog fillets thiab tees ntawm ntau seem.
Ntws Purged Chamber – Ib ntws purged chamber yuav tsum siv thaum lub chaw ua hauj lwm yog ib yam nkaus thiab loj heev kom haum muaj chamber thiab cov pob qij txha yog ib yam nkaus thiab txoj cai qhib cua welding. Lub enclosure yog ua los ntawm polyethelene daim ntawv thiab masking daim kab xev. Argon ntws los ntawm lub hnab displaces los yog sib xyaw cov cua entrapped rau ib theem uas welding yuav tau ua. Tus argon yuav tsum pub txaus kom txog rau thaum tag nrho cov chaw ua hauj lwm yog txias. Enclosure ntawm tag nrho cov sab ntawm qhov chaw ua hauj lwm yog Mandatory.
Muab lub THAWV LOS YOG NQUS Tsev Purge Chamber – Lub thawv qhuav muab cov superior inert roj cua. Qhov chaw muab tso rau hauv ib lub thawv. Tus chamber yog ntim thiab lub nqus tsev nqus tsev yog rho rau ntawm lub thawv. Xyaum ua tej yam zoo li cas yog twj tso kua mis mus kwv yees li ntawm 50 microns. Lub thawv no ces rov qab uas muaj purity tank argon rau ib me ntsis zoo siab. Welding ces ua siv hnab looj tes hnab looj tes inserted los ntawm sab ntawm lub chamber.
Qhib cua Welding – tantalum yog tau, Tab sis tsuas yog thaum cov hluas tshaj plaws precautions noj. Tsuas yooj yim ob leeg uas tas shielding yog tau. Kev tiv thaiv yuav tsum tau muab rau arc, hlau pem lub taub hau, Rau sab thiab rau lub txias hlau qab thiab underneath lub weld bead. Cov cua tiv thaiv cua yog muab los ntawm kev siv ib maj mam ntws ntawm lub khob loj npaum li cas tau zoo ib yam nrog visibility zoo. Ib pam ntawm cov roj inert yuav tsum tau nkag los ntawm kev siv cov ntaub thaiv npog shields uas muab ib glow ntawm roj kom txog rau thaum cov hlau txias hauv qab no qhov kub tshaj plaws. Rov qab tuaj shielding nyob rau sab nraud ntawm lub weld bead yuav tsum tau siv los tiv thaiv kom txog thaum cov khoom txias txias.
Daim ntawv
Nyob rau hauv cov mob annealed, tantalum yog tsis tshua muaj neeg ductile. Feem ntau cov hlau ua hauj lwm yog tau nrog ib thickness ntau yam .004″ ntsaub .060″
sib sib zog nqus
Sib sib zog nqus, tsuas yog siv cov khoom siv xwb. Tantalum tsis ua hauj lwm nyuaj sai li sai tau hlau. Yog hais tias daim yuav tau twv nyob rau hauv ib lub lag luam, Ib kos uas lub qhov tob yog sib npaug zos rau lub diameter ntawm tus blank yuav tau ua. YOG hais tias ntau tshaj ib lub lag luam yog nqus haujlwm yuav tau ua, Tus thawj kos yuav tsum muaj ib qhov tob ntawm tsis ntau tshaj 40-50% diameter.
Blanking & xuas nrig ntaus
Nyob rau hauv blanking thiab xuas nrig ntaus hlau xyuas yog pom zoo. Qhov tseeb ntawm lub punch thiab tuag yuav tsum tau kwv yees li ntawm 6% Ntawm cov thickness ntawm cov hlau tau ua haujlwm. Siv lub teeb roj yog pom zoo kom txhob tw tw ntawm cov tuag.
Daim Ntawv Stamping
Cov txheej txheem rau daim ntawv stamping yog zoo ib yam li cov ones siv cov hlau tsuas yog ceev faj yuav tsum tau noj kom tsis txhob seizing los yog tearing cov hlau. Xyuas yuav tau ua los ntawm hlau tsuas yog thaum muaj slipping ntawm cov hlau. Qhov teeb meem no, aluminum bronze los yog beryllium tooj liab yuav tsum siv. Low melting alloys xws li Kirksite tej zaum yuav siv rau luv sau. Roj hmab los yog pneumatic tuag cushions yuav tsum siv thaum twg los tau. Tantalum nyob rau hauv lub xeev annealed yuav siv sij hawm ib txheej nyob rau hauv daim ntawv thiab nws tsis caij nplooj ntoos hlav rov qab los ntawm cov xyuas.
Spinning
Spinning tej zaum yuav accomplished los conventional txheej txheem. Steel roller log uasuld siv raws li cov cuab yeej. Tiam sis rau luv sau daj brass yuav siv tau. Daj xab npum los yog Johnsons tsis tau 150 yog nqus wax yuav siv tau raws li ib tug thericant.
Annealing
Txoj kev rau anealing tantalum yog tshav kub kub cov khoom ncum rau kub saum toj no 2000 kev kawm ntawv F.
Khaub Lig
Tantalum yog paub tias nws yog excellent corrosion kuj yuav feem ntau acids. Zoo ib yam li iav, Yog ib ob peb exceptions yog hydrofluoric acid. Txhua yam tshuaj uas muaj fluoride yuav tsum tsis txhob muab cov tshuaj fluoride ntxiv. Nws kuj tseem yuav rov los ntawm sulfur mioxide, concentrated muaj zog alkalis thiab tej molten ntsev. Thaum kub tsis tshaj 300 degrees F feem ntau organic thiab inorganic kua yuav tsis muaj feem xyuam rau tantalum. Tib yam yog muaj tseeb ze li ntawm tag nrho corrosive gases xws li wet los yog qhuav chlorine thiab bromine. Qhov kub tshaj plaws ntawm qhov kub tshaj plaws 300 degrees F. Yuav ua rau kom lub sij hawm ntev embrittlement teeb meem tsuas yog muaj kev tiv thaiv los ntawm interstitial contamination. Tantalum kuj tswj superior kuj nres los ntawm kua hlau xws li sodium, lithium, hlau nplaum, mercury thiab potassium hauv kub txog li cas 2000 degrees F.
