2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Piv nrog cov ntsia hlau titanium, tus ntsia thawv Nitinol tsim qis qis qis ntawm tus ntsia thawv thiab kwj dej; yog li ntawd Nitinol tus ntsia thawv tus qhov kawg quab yuam kuj qis dua. … Cov ntsia hlau stainless muab cov qauv nruj dua li cov ntsia hlau titanium hauv Kaiser txoj kev kawm [30].
Nitinol muaj zog npaum li cas?
Nitinol Memory khoom ua si yog ua los ntawm nitinol hlau nrog qhov hloov pauv qis (qhov kub ntawm cov dej kub). Lub zog tsim tawm thaum lub xaim rov qab yog qhov muaj zog heev. Ib square inch ntawm Nitinol cov khoom tsim tawm zoo rov qab quab yuam ntawm + 30, 000 PSI.
Puas nitinol muaj zog dua hlau?
Feem ntau, cov nitinol tau hloov pauv los ua kom zoo dua ntawm nws qhov tshwj xeeb superelasticity lossis lub peev xwm nco. Lub modulus ntawm nitinol yog cov tsis-linear, thiab nws tsis yog ze li qhov nyuaj li stainless hlau.
% pes tsawg ntawm nitinol yog titanium?
4.4.
Ni-Ti alloy (tseem hu ua Nitinol) yog ib qho alloy nrog ze-equiatomic muaj pes tsawg leeg (ie, 49%–51%) ntawm nickel thiab titanium.
Puas muaj dab tsi muaj zog dua titanium?
Nws lub zog tensile rau qhov sib piv yog qhov siab tshaj plaws ntawm tag nrho cov hlau, ntaus tungsten, uas, txawm li cas los xij, tau qhab nia siab dua titanium ntawm Mohs nplai. … Raws li cov hlau uas muaj zog tensile siab tshaj plaws, tungsten feem ntau ua ke nrog cov hlau thiab lwm yam hlau kom ua tiav txawm tiasmuaj zog alloys.
Pom zoo:
Puas yog cov leeg plawv tsis muaj zog tuaj yeem ntxiv dag zog?
"Yog tias koj muaj lub plawv tsis ua haujlwm, kev tawm dag zog tuaj yeem txhim kho koj txoj kev noj qab haus huv, ua kom koj muaj peev xwm tawm dag zog thiab rov qab cov qauv ntawm cov leeg nqaij uas tshwm sim hauv plawv tsis ua haujlwm,"
Puas titanium hloov dua siab tshiab muaj cob alt?
Cov qia femoral yog qhov hloov pauv uas haum rau koj cov pob txha ncej puab. Keeb kwm, qhov no yog tsim los ntawm titanium thiab/los yog cob alt-chromium hlau. Nyob rau lub caij nyoog niaj hnub no ntawm kev hloov lub duav, cov pob txha cemented (ntxig nrog cov pob txha phais) yog tsim los ntawm cob alt-chromium hlau.
Vim li cas qhov tseem ceeb ntawm qhov muaj zog thiab qhov tsis muaj zog yog qhov tseem ceeb?
Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm qhov ua tau zoo thiab qhov tsis muaj zog vim qhov no pab lub tuam txhab txiav txim siab txog thaj chaw uas lawv yuav tsum tau txhim kho ntxiv rau thaj chaw uas lawv ua tau zoo hauv. Vim li cas lub zog thiab qhov tsis muaj zog tseem ceeb?
Puas yog qhov muaj zog thiab qhov tsis muaj zog ntawm marxism?
Ib lub zog ntawm Marxism yog nws txoj kev xav. Nws ua haujlwm kom nthuav tawm kev tsis ncaj ncees thiab fervently ntseeg tias txhua tus neeg yuav tsum tau kho nrog kev sib luag thiab meej mom. … Ntawm qhov tsis zoo, txawm li cas los xij, ib qho qhov tsis muaj zog ntawm Marxism yog nws ua rau lub xeev tyranny.
Puas yog qhov muaj zog tshaj qhov tsis muaj zog hauv sparta?
Sparta ua phem heev thiab txhua yam lawv xav txog yog muaj tub rog muaj zog tshaj plaws. Qhov tsis muaj zog ntawm Sparta tshaj qhov muaj zog vim Spartans tsis muaj kev kawm, cov tub hluas raug tshem tawm ntawm lawv tsev neeg thaum tseem hluas, thiab lawv raug tsim txom heev.
