ASTM F30 Invar 42 Bar
Khoom Description
Invar 42 (UNS K94100, ASTM F30, W.Nr. 1.3917; 4J42) yog hlau-nickel tswj-expansion alloy uas muaj kwv yees li 42% nickel. Ordinary hlau nthuav thaum rhuab, zoo li iav; txawm li cas los xij, tus nqi uas lawv nthuav dav txawv. Yog tias lawv tau sib txuas ncaj qha ua ke, lub khob yuav tawg vim kev ntxhov siab tensile thaum lub rooj sib txoos txias. Cov coefficient ntawm thermal expansion ntawm Invar 42 alloy tau raug tsim los ua kom haum rau cov iav thiab ceramics; yog li ntawd, lawv cog lus nyob rau hauv unison thaum lub sij hawm txias, tiv thaiv kev tawg. Qhov no suav nrog nws tus nqi tseem ceeb.
Nws cov ntawv thov raug suav nrog:
Electronic Ntim: Semiconductor nti ntim ntim ntim, sib xyaw ua ke hauv Circuit Court, thiab transistor leads
Electronic Vacuum Devices: Electrode leads and sealing envelopes for electron tubes, travel -wave tubes, and magnetrons
Iav-rau- Hlau Seals: Automotive thiab muaj teeb pom kev zoo, transformer thiab capacitor bushings
Precision Instruments: Laser interferometer Cheebtsam, kho qhov muag ntsuas mounts, thiab txheem teev
Temperature Control thiab Spring Elements: Kub tswj rods thiab bimetallic strip substrates
Tshuaj muaj pes tsawg leeg
Invar 42's "daim npav ID" yog 42% npib tsib xee (ASTM F30).
|
Element |
Cov ntsiab lus % |
|
Hlau, Fe |
Tshuav |
|
Nickel, Nia |
42% |
|
Manganese, Mn |
Tsawg dua lossis sib npaug li 0.6 |
|
tooj, Cu |
Tsawg dua los yog sib npaug li 0.5 |
|
Molybdenum, Mo |
Tsawg dua los yog sib npaug li 0.5 |
|
Chromium, Cr |
- Tsawg dua los yog sib npaug rau 0.5 |
|
Silicon, Sib |
Tsawg dua lossis sib npaug li 0.35 |
|
Carbon, C |
Tsawg dua los yog sib npaug li 0.1 |
|
Phosphorus, P |
Tsawg dua lossis sib npaug li 0.025 |
|
Sulfur, S |
Tsawg dua lossis sib npaug li 0.025 |
Precise tswj ntawm cov muaj pes tsawg leeg yog lub hauv paus barrier rau cov khoom no. Yog hais tias cov ntsiab lus npib tsib xee deviates los ntawm 1%, lub coefficient ntawm thermal expansion yuav drift, tej zaum yuav ua rau tawg thaum lub sij hawm iav - txheej txheem sealing.
Lub cev muaj zog
|
Cov khoom |
Metric |
Imperial |
|
Qhov ntom |
8.11 g / ct |
0.293 lbs/in³ |
|
Melting Point |
1427 degree |
2600℃F |
|
Tshwj xeeb kub |
0.12 BTU |
0.12 cal/g- degree |
Ceeb toom txog kev khiav hauj lwm kub:Invar 42 yog tsim rau siv nyob rau hauv qhov ntau ntawm -50℃mus rau 300 degree. Nyob rau hauv tas li ntawd, lub coefficient ntawm thermal expansion yuav hloov heev.
Mechanical Properties
Annealed xeev, invar 42
|
Cov khoom |
Metric |
Imperial |
|
Tensile Strength, Qhov kawg |
490 MPa ua |
7 1068 psi |
|
Tensile zog, tawm los |
250 MPa |
7 1068 psi |
|
Elongation ntawm Break |
42% |
42% |
Hais txog kev ua
Nws cov yam ntxwv ua yog piv rau cov austenitic stainless hlau; Txawm li cas los xij, kev kho cua sov cuam tshuam rau kev ruaj ntseg ntawm nws cov coefficient ntawm thermal expansion.
1. Cold forming - Elongation > 40%; Stampability zoo heev
Invar 42 yog mos heev nyob rau hauv nws lub xeev annealed, ua rau nws zoo - haum rau stamping thiab ua haujlwm. Yog tias kev yuav khoom hauv qhov txias - kos (nyuaj) lub xeev, nws yog ib qho tseem ceeb los xyuas seb puas yuav tsum tau ua ib qho kev cuam tshuam nruab nrab ntawm cov txheej txheem ua ntej stamping; tsis ua li ntawd yuav ua rau tawg.
2. Vuam - Weldable; Mature Process Technology
3. Machining - Yooj yim rau tshuab hauv lub xeev Annealed; Nco ntsoov Magnetic Properties
Cov txheej txheem txiav tuaj yeem ua tau siv cov cuab yeej carbide. Txawm li cas los xij, raws li alloy 42 nthuav tawm cov khoom sib nqus ntawm chav tsev kub, cov chips tuaj yeem ua raws li cov cuab yeej txiav thaum lub sijhawm ua haujlwm.
4. Kev ua haujlwm tshwj xeeb rau kev siv caij nplooj ntoos hlav
Yog tias cov khoom siv rau lub caij nplooj ntoos hlav (xws li, thermal tswj rods, lead thav duab, thiab lwm yam), Invar 42 feem ntau muab rau hauv lub xeev txias -kos (nyuaj), uas tuaj yeem siv ncaj qha. Xwb, cov khoom yuav raug tsim nyob rau hauv lub xeev annealed thiab tom qab ntawd raug rau kev laus kev kho mob (tuav ntawm 400-500℃rau ob peb teev) los txhim kho nws hardness.
Cov ntsiab lus tseem ceeb rau Kev Sib Txuas Lus
Ua ntej xa daim ntawv tshaj tawm rau Invar 42, ntxiv rau kev sib tham txog cov qauv siv tau, peb xav tau kev nkag siab zoo ntawm koj cov kev ua haujlwm tshwj xeeb nrog rau cov ntsiab lus tseem ceeb hauv qab no hais txog cov rods alloy. Qhov no ua kom peb ua raws li peb cov lus qhia: "Yuav nkag siab tag nrho cov khoom yuav tsum tau muab cov lus tseeb thiab sai sai."
Qhov Loj:Txoj kab uas hla, Ntev
Qhov xwm txheej:Annealed (Soft) lossis Txias -Drawn (Hard)?
Nto tiav:Dub (Raws li -dov), tig, lossis hauv av?
Kev kho cua sov yuav tsum muaj:Koj puas xav kom peb ua annealing ua ntej ua zaub mov xa tuaj?
Daim ntawv thov tshwj xeeb:Puas yog cov khoom siv rau iav - mus rau - hlau sealing lossis rau kev tsim cov springs?
Cov lus pom zoo rau cov khoom siv:
Rau kev ua haujlwm nyuaj (piv txwv li, stamping, kos duab sib sib zog nqus) → Annealed Condition (Elongation> 40%)
Rau kev tsim khoom ncaj qha ntawm cov springs los yog txhuas thav duab → Txias -Txoj kev mob (Tensile Strength: 700-900 MPa)
Rau iav - mus rau - hlau sealing Cheebtsam → Annealed Condition + Pre- Kev kho oxidation
Thov nco ntsoov:Raws li peb cov kev paub dhau los ntawm kev nrhiav Invar 42, nws cov nqi taug qab ze nrog cov nqi npib tsib xee thiab muaj qhov hloov pauv loj. Thov xa kuv cov lus qhia tshwj xeeb (inch), qhov xwm txheej (annealed lossis nyuaj- kos), thiab xav tau kom muaj nuj nqis, thiab kuv yuav muab cov nqi ruaj khov rau koj sai li sai tau.
Cim npe nrov: astm f30, invar 42 bar, Tuam Tshoj astm f30 invar 42 bar manufacturers, hoobkas
You Might Also Like
Xa kev nug