Standard Samarium Cobalt (SmCo) lub tog raj kheej hlau nplaum muab cov hlau nplaum ruaj khov nyob rau hauv qhov chaw thermal uas cov qib neodymium muaj cov qauv demagnetization. Ua los ntawm cov hmoov hlau metallurgy los ntawm sintered intermetallic alloys (SmCo5 los yog Sm2Co17), cov khoom no tswj nominal kev ua tau zoo txog 350 deg C (Sm2Co17 series). Lawv cov cobalt matrix siab muaj pes tsawg leeg tshem tawm qhov yuav tsum tau tiv thaiv plating nyob rau hauv qhuav los yog inert gaseous ib puag ncig, txawm hais tias nws yog xim hlau thiab polymeric txheej yog siv thaum muaj tshuaj lom neeg los yog particle shedding tiv thaiv.
Technical Specifications
|
Parameter |
SmCo5 Qib |
Sm2Co17 Qib |
|
Remanence (Br) |
8.2 - 10.5 kGs (0.82 - 1.05 T) |
10.5 - 12.5 kGs (1.05 - 1.25 T) |
|
Khoom siv hluav taws xob ((BH) max) |
16 - 28 MGOe (128 - 223 kJ/m3) |
28 - 33 MGOe (223 - 263 kJ/m3) |
|
Kev coercivity (Hcb) |
>= 7.5 kOe (597 kA/m) |
>= 9.5 kOe (756 kA/m) |
|
Intrinsic Coercivity (Hcj) |
>= 15.0 kOe (1194 kA/m) |
>= 15.0 kOe (1194 kA/m) |
|
Kev khiav hauj lwm Temp (Tmax) |
250 ° C |
350 ° C |
|
Reversible Temp Coeff (Br) |
-0.045% / ° C |
-0.030% / ° C |
|
Qhov ntom |
8.2 - 8.4 g/cm3 |
8.3 - 8.5 g/cm3 |
Ntsiab nta
Khaws cov hlau nplaum sib nqus hla kev ua haujlwm tsis tu ncua mus txog 350 deg C yam tsis muaj kev puas tsuaj.
Features an intrinsic coercivity (Hcj) >= 15 kOe, tiv thaiv flux poob hauv qab khaus khaus - teb.
Magnetic domains yog taw qhia los ntawm qhov siab - siv qhov chaw thaum nias rau ncaj qha flux vectors axially lossis diametrically.
Cov ntsiab lus cobalt siab txo qis kev cuam tshuam rau atmospheric oxidation txheeb ze rau kev kho tsis tau neodymium.
Daim ntawv thov
Aerospace Actuators:Brushless DC lub cev muaj zog rotors ua haujlwm siab tshaj 200 ° C.
Defense Electronics:Taug kev -wave tubes (TWTs) thiab electron beam tsom arrays.
Downhole Drilling cuab yeej:MWD (Kev Ntsuas Thaum Drilling) telemetry sensors raug kev co thiab thermal profiles mus txog 300 deg C.
Inertial Navigation:Precision gyroscopes yuav tsum tau nyob ze -zero thermal drift hauv magnetic output.
Kev kho kom haum
Cov kws tshaj lij xa cov kev cai luam tawm tshwj xeeb rau kev tsim-rau- luam tawm (BTP) kev yuav khoom:
Qhov Loj:
Txoj kab uas hla ntawm 2.0 hli mus rau 100 hli; ntev los ntawm 1.0 mm mus rau 150 mm.
Magnetization:
Axial, diametrical, multi-ncej ntsej muag, lossis tshwj xeeb radial sector orientations.
Surface Finishes:
Passivated (uncoated), electrolytic Nickel-Copper-Nickel (Ni-Cu-Ni), los yog vapor- tso Parylene C.
Mechanical nta:
Nruab nrab -tsawg hauv av sab nraud, cov npoo chamfered, thiab slotted profiles.
Manufacturing & Quality Control
Kev ua:Alloy ingots undergo lub tshuab nqus tsev induction melting, dav hlau -milling kom ua tiav lub hom phiaj particle tis (D50 approx 3 - 5 um), thiab ntub magnetic alignment compression molding.
Sintering:Ua tiav hauv siab -purity argon cua rauv taws ua raws li ntau-theem thermal aging voj voog.
Kev kuaj:
• Hysteresisograph Verification: 100% kev ntsuas ntau ntawm 20 deg C thiab ua haujlwm siab kub kom paub tseeb Br, Hcb, thiab (BH) max.
• Dimensional Screening: Automated optical CMM thiab laser micrometer soj ntsuam ua ke nrog fluorescent dye penetrant kuaj rau deg micro- tawg.
• Traceability: Permanent laser marking on the first batch containers linked ncaj qha mus rau lub tshuab nqus tsev yaj cav thiab tshuaj ntsuam xyuas daim ntawv pov thawj.
Ntim & Cov ntaub ntawv
Magnetic Shielding:Export cartons lined with cold-rolled steel flux return sheets to limits stray fields, ua kom tiav IATA Dangerous Goods cov cai (Packing Instruction 953).
Kev tiv thaiv lub cev:Ib tus neeg siab - ntom polyethylene (HDPE) cov tais ntawm tes tiv thaiv kev sib cuag -ib feem thaum lub sijhawm thauj mus los.
Cov ntaub ntawv pob:
• Daim Ntawv Qhia Txog Cov Khoom Siv (MTR): Qhia kom meej txog cov khoom sib txawv thiab cov txiaj ntsig ntawm kev sib koom tes.
• Certificate of Conformance (CoC): Ua raws li cov qauv ASTM A977.
• Cov Lus Qhia Txog Kev Ua Haujlwm: Qhia meej txog cov khoom siv nkig ntawm sintered tsawg- cov ntaub ntawv hauv ntiaj teb.
FAQ
Cim npe nrov: Tuam Tshoj Standard samarium cobalt cylinder hlau nplaum manufacturers, lwm tus neeg, Hoobkas
