17-4PH Cov Ntaub Ntawv Cov Ntaub Ntawv
Scopes
Cov khoom siv stainless 17-4 PH yog tus cwj pwm los ntawm lub zog tawm los, zoo corrosion kuj thiab siab hnav tsis kam. 17-4 PH yog ib qho ntawm cov hlau tseem ceeb tshaj plaws uas tuaj yeem ua kom tawv. Nws yog analytically zoo ib yam nrog cov ntaub ntawv 1.4548 thiab 1.4542.
Kev siv nyob rau hauv qis-kub ntau yog ua tau nrog mob H1150 thiab H1025. Ib qho kev cuam tshuam zoo heev ntawm lub zog kuj tau muab rau ntawm qhov kub qis.
Vim tias cov khoom siv zoo thiab kev tiv thaiv corrosion, cov khoom siv yog tsim rau siv nyob rau hauv marine ib puag ncig, tab sis muaj kev cuam tshuam rau crevice corrosion nyob rau hauv seawater sawv.
17-4PH yog nrov npe hu ua AISI 630.
Cov khoom siv 17-4PH yog siv rau hauv kev lag luam tshuaj, kev lag luam ntoo, kev lag luam sab nrauv, hauv nkoj tsim, hauv kev tsim kho tshuab, hauv kev lag luam roj, hauv kev lag luam ntawv, hauv kev ua kis las. Leisure kev lag luam thiab raws li ib tug re-melted version (ESU) nyob rau hauv huab cua thiab Aerospace.
Yog hais tias txhua yam khoom thiab corrosion kuj ntawm martensitic steels tsis txaus, 17-4PH tuaj yeem siv.
17-4PH Material Data Sheet Download
Yam ntxwv
| Malleable | zoo |
| Weldability | zoo |
| Mechanical zog | zoo heev |
| Corrosion kuj | zoo |
| Machineability | phem rau nruab nrab |
Qhov zoo
Ib qho tshwj xeeb ntawm cov khoom siv 17-4 PH yog qhov tsim nyog rau qhov kub thiab txias thiab kev siv mus txog kwv yees li. 315 ° C.
Forging:Lub forging ntawm cov khoom siv qhov chaw nyob rau hauv ib tug kub ntawm 1180 ° C mus rau 950 ° C. Txhawm rau kom cov nplej refining, qhov txias rau chav tsev kub yog ua nrog cua.
Vuam:Ua ntej cov khoom siv 17-4 PH tuaj yeem welded, kev txiav txim siab yuav tsum tau muab rau cov xwm txheej ntawm cov khoom siv hauv paus. Nyob rau hauv daim ntawv ruaj khov, tooj liab muaj nyob rau hauv cov khoom. Qhov no txhawb tsis muaj kub tawg.
Yuav kom ua tau qhov zoo tshaj plaws vuam tej yam kev mob yuav tsum tau. Undercuts los yog vuam qhov tsis xws luag tuaj yeem ua rau muaj qhov tsis zoo. Qhov ntawd yuav tsum zam. Txhawm rau tiv thaiv kev tsim cov kab nrib pleb, cov khoom siv yuav tsum raug rov qab los rau kev daws teeb meem nrog kev laus tom ntej hauv lub sijhawm luv luv tom qab vuam.
Yog tias tsis muaj kev kho cua sov tom qab siv qhov chaw, cov cuab yeej siv thev naus laus zis hauv cov vuam seam thiab thaj chaw kub ntxhov rau cov khoom siv hauv paus tuaj yeem sib txawv heev.
Corrosion kuj:Thaum cov khoom siv kho tshuab thiab corrosion kuj ntawm martensitic steels tsis txaus, 17-4 PH yog tsim rau siv nyob rau hauv marine ib puag ncig. Nws muaj kev sib xyaw ua ke ntawm cov khoom siv zoo heev thiab kev tiv thaiv corrosion.
Nyob rau hauv dej hiav txwv sawv, 17-4 PH yog raug rau crevice corrosion. Qhov no yuav tsum muaj kev tiv thaiv ntxiv.
Machining:17-4 PH tuaj yeem ua tau rau hauv cov tawv tawv thiab kev daws teeb meem. Nyob ntawm qhov hardness, lub machinability txawv, qhov no yuav nyob ntawm seb qhov xwm txheej.
Kev kho cua sov
Ntawm 1020 ° C thiab 1050 ° C cov khoom 17-4 PH yog tov-annealed. Qhov no yog ua raws li qhov txias txias - dej, roj lossis cua. Qhov no yog nyob ntawm qhov ntu ntu ntawm cov khoom siv.
Yuav kom ua tiav kev hloov pauv ntawm austenite mus rau martensite, cov khoom siv yuav tsum muaj peev xwm ua kom txias hauv chav sov.
Kev ua haujlwm
| Polishing | ua tau |
| Txias txoj kev | tsis tau |
| Kev ua cov duab | yog ua tau, nyob ntawm qhov hardness |
| Txias dhia dej | tsis tau |
| Freeform thiab poob forging | ua tau |
Lub cev muaj zog
| Qhov ceev hauv kg / dm3 | 7,8 ib |
| Hluav taws xob tsis kam ntawm 20 ° C hauv (Ω mm2) / m | 0,71 ib |
| Magnetisability | muaj |
| Thermal conductivity ntawm 20 ° C hauv W / (m K) | 16 |
| Qhov tshwj xeeb kub muaj peev xwm ntawm 20 ° C hauv J / (kg K) | 500 |
Xam qhov hnyav ntawm cov khoom xav tau sai sai »
Tshuaj muaj pes tsawg leeg
| 17-4 PAB | C | Si | Mn | P | S | Cr | Mo | Ni | V |
| min. | bis | bis | bis | bis | bis | 15 | bis | 3 |
|
| max. | 0,07 ib | 0,7 ua | 1,0 ib | 0,04 ib | 0,03 ua | 17,5 ib | 0,6 ib | 5 |
|
| 17-4 PAB | Al | Cu | N | Nb | Ti | Sonstiges |
| min. |
| 3,0 ib |
| 5xc ua |
|
|
| max. |
| 5,0 ua |
| 0,45 ib |
|
|
Hauv Tshuag
Pav ca, forged, tov annealed thiab outsourced
Qhov zoo ntawm saw txiav
Kev ua haujlwm nrog cov saw yog ib qho kev ua haujlwm ntawm cov khoom siv, uas ua rau muaj qhov tsis zoo ntawm qhov deformation thiab nce hardness rau cov qauv uas twb muaj lawm, xws li thermal txiav.
Yog li, machined workpiece muaj ib homogeneous qauv txawm nyob rau ntawm ntug, uas tsis hloov nyob rau hauv lub continuation ntawm cov khoom.
Qhov xwm txheej no tso cai rau kev ua tiav tam sim ntawm lub workpiece nrog milling lossis drilling. Yog li nws tsis tas yuav tsum tau muab cov khoom siv los yog ua haujlwm zoo sib xws ua ntej.
