1. Scope
1.1.1 Molybdenum 360Ð Unalloyed nqus arc-cam khwb cia molybdenum.
1.1.2 Molybdenum 361Ð Unalloyed hmoov metallurgy molybdenum.
1.1.3 Molybdenum alloy 363ÐVacuum arc-cast molybdenum ±0.5% titanium ±0.1% zirconium (TZM) alloy.
1.1.4 Molybdenum alloy 364ÐPowder metallurgy molybdenum ±{0}}.5% titanium ± 0.1% zirconium (TZM) alloy.
1.1.5 Molybdenum 365Ð Unalloyed nqus arc-cam khwb cia molybdenum, qis carbon.
1.1.6 Molybdenum alloy 366Nqus arc-cam khwb cia molybdenum, 30 feem pua tungsten alloy.
1.2 Cov nqi teev nyob rau hauv nti-phaus units yuav tsum raug suav hais tias yog tus qauv. Cov txiaj ntsig tau muab rau hauv kab lus yog muab rau cov ntaub ntawv xov xwm nkaus xwb.
2. Cov ntaub ntawv siv tau
2.1 ASTM Cov Qauv:
E 8 Test Methods for Tension Testing of Metallic Materials2 F 289 Speci®cation for Molybdenum Wire and Rod for Electronic Applications3
3. Terminology
3.1 De®nitions of Terms Speci®c rau Cov Qauv no:
3.1.1 bar thiab rodCov khoom ncaj nraim nrog ib puag ncig, duab plaub, hexagonal, lossis octagonal khoom hla ntu, 4 in. (101.6 mm) txoj kab uas hla los yog tsawg dua, los yog sib npaug ntawm qhov sib npaug.
3.1.2 hlauIb yam khoom uas muaj nyob rau hauv coils los yog nyob rau hauv spools los yog reels. CEEB TOOM 1ÐQhov speci®cation no suav nrog cov xaim tsis pub tsawg dua 0.020 nyob rau hauv. (0.51 mm) inch los yog qhov sib npaug ntawm qhov sib npaug. Speci®cation F 289 npog txoj kab uas hla mus txog 0.020 nyob rau hauv.
4. Cov ntaub ntawv xaj xaj
4.1 Kev txiav txim rau cov khoom raws li qhov tshwj xeeb no yuav tsum suav nrog cov ntaub ntawv hauv qab no raws li siv tau:
4.1.1 Tus naj npawb ntawm cov khoom thiab kev kub ntxhov (Ntu 1 thiab Table 3),
4.1.2 Daim ntawv khoom (Tshooj 3),
4.1.3 Cov kev cai tshuaj (Table 1 thiab Table 2),
4.1.4 Mechanical Requirements (Nqe 7),
4.1.5 softening kub (Ntu 8),
4.1.6 Tolerances (Nqe 9 thiab Table 4),
4.1.7 Kev ua haujlwm thiab qib kev ua tau zoo (Section 10),
4.1.8 Ntim (Nqe 16),
4.1.9 Kos Npe (Nqe 15),
4.1.10 Certi®cation and reports (Section 14), and
4.1.11 Tshem tawm cov khoom tsis lees paub (Tshooj 13).
5. Cov khoom siv thiab kev tsim khoom
5.1 Cov khoom lag luam molybdenum ntau yam uas tau them los ntawm qhov tshwj xeeb no yuav tsum tau tsim nrog cov pa extrusion, forging, swaging, dov, thiab cov cuab yeej kos duab ib txwm pom muaj nyob hauv thawj cov nroj tsuag ferrous thiab nonferrous. Lub ingot hlau rau Molybdenum 360 thiab 365 thiab Molybdenum Alloys 363 thiab 366 yog nqus arc-melted nyob rau hauv furnaces ntawm ib hom haum rau reactive, refractory hlau, thiab rau Molybdenum 361 thiab 364 cov hlau yog sib sau ua ke los ntawm hmoov metallurgy txoj kev.
6. Tshuaj muaj pes tsawg leeg
6.1 Cov molybdenum thiab molybdenum alloy ingots thiab billets rau hloov dua siab tshiab rau ®nished khoom them los ntawm no speci®cation yuav tsum ua raws li cov kev cai ntawm cov tshuaj muaj pes tsawg leeg sau tseg nyob rau hauv Table 1.
6.2 Tshawb xyuas:
6.2.1 Kev soj ntsuam xyuas yog ib qho kev tshuaj xyuas los ntawm tus neeg yuav khoom lossis cov chaw tsim khoom ntawm cov hlau tom qab nws tau ua tiav rau hauv ®nished zeb cov ntaub ntawv, thiab yog rau lub hom phiaj ntawm kev txheeb xyuas qhov muaj pes tsawg leeg ntawm cov cua sov lossis ntau lossis los txiav txim qhov txawv ntawm cov muaj pes tsawg leeg nyob rau hauv ib lub tshav kub los yog ntau.
6.2.2 Kev txheeb xyuas qhov ua tau zoo tsis nthuav dav qhov kev ntsuas ntsuas kub tshwj xeeb tab sis npog cov kev hloov pauv
nruab nrab ntawm labo-ratories hauv kev ntsuas cov ntsiab lus tshuaj.
6.2.3 Cov chaw tsim khoom yuav tsum tsis txhob xa cov khoom uas nyob sab nraum cov kev txwv tshwj xeeb hauv Table 1 rau hom siv tau, tshwj tsis yog cov pa oxygen thiab nitrogen, qhov feem pua ntawm cov khoom yuav txawv nrog txoj kev tsim.
7. Mechanical Properties
7.1 Cov khoom siv raws li qhov tshwj xeeb no yuav tsum ua raws li cov cuab yeej cuab tam uas tau muab rau hauv Table 3 thaum kuaj nyob rau hauv txoj kab ntev ntawm kev ua haujlwm ntawm qhov ntsuas kub ntawm 65 thiab 85 degree F (18.3 thiab 29.4 degree).
7.2 Cov qauv ntsuas kev sib zog yuav tsum tau npaj thiab sim ua raws li Txoj Cai Kev Xeem E 8. Tensile zog yuav tsum raug txiav txim siab siv tus nqi sib txawv ntawm 0.002 txog 0 .
8. Qhov kub thiab txias
8.1 Yog hais tias speci®ed, cov khoom siv raws li qhov speci®ca tion no yuav tsum muaj cov khoom siv kho tshuab tsis qis dua li cov lus qhia 3 tom qab rov ua kom sov hauv qhov chaw tiv thaiv kom sov li hauv qab no rau lub sijhawm 30 min;
9. Tso cai hloov pauv hauv qhov ntev
9.1 Txoj kab uas hla, thiab tawm-ntawm-piv puag ncig ntawm molybdenum
thiab cov khoom siv molybdenum alloy them los ntawm qhov tshwj xeeb no
yuav tsum tau raws li speci®ed hauv Table 4.
9.2 Length thiab straightness kam rau ua thiab txwv yuav tsum
ua raws li nram no:
9.2.1 Txiav lengths, 6 1¤4 nyob rau hauv. (6.35 mm).
9.2.2 Ncaj, siab tshaj qhov sib txawv ntawm 0.050 in./ft (1.27 mm/305 mm) nyob rau hauv txhua qhov ntev.
9.3 Tso cai variations nyob rau hauv qhov ntev rau hlau, square,
los yog daim duab plaub, thiab hexagonal lossis octagonal rods, yuav tsum yog raws li kev pom zoo ntawm cov chaw tsim khoom thiab cov neeg yuav khoom.
10. Kev ua haujlwm, kev ua tiav, thiab qhov tshwm sim
10.1 Molybdenum thiab molybdenum alloy bar, pas nrig, thiab hlau yuav tsum tsis txhob raug mob sab nraud thiab sab hauv.
imperfections ntawm ib tug xwm uas yuav cuam tshuam nrog lub hom phiaj uas nws yog npaj.
10.2 Cov khoom yuav raug ®nished li forged, dov, swaged, los yog kos (dub), li ntxuav, machined, los yog hauv av.
10.3 Cov chaw tsim khoom yuav tsum raug tso cai kom tshem tawm qhov tsis zoo ntawm qhov chaw uas qhov kev tshem tawm no tsis txo qhov dav hauv qab qhov tsawg kawg nkaus tso cai los ntawm kev ua siab ntev rau
qhov dimension speci®ed.
11. Qauv
11.1 Kev saib xyuas yuav tsum tau ua kom ntseeg tau tias cov qauv uas tau xaiv rau kev sim yog tus sawv cev ntawm cov khoom thiab daim ntawv thiab tsis muaj kab mob los ntawm tus txheej txheem kuaj.
12. Cov txheej txheem tshuaj ntsuam xyuas
12.1 Cov tshuaj muaj pes tsawg leeg suav nrog hauv qhov tshwj xeeb no yuav tsum, yog tias muaj kev tsis pom zoo, raug txiav txim siab raws li cov qauv kev sim uas tau pom zoo rau tus neeg saib xyuas lub hom phiaj los ntawm ASTM.4 Qhov twg tsis muaj cov kev sim no, cov txheej txheem ntawm kev tshuaj xyuas raws li kev pom zoo. Nyob nruab nrab ntawm cov chaw tsim khoom thiab cov neeg yuav khoom yuav tsum ua haujlwm.
