Qhov twg ntawm ob hom pwm hlau, NAK80 thiab H13, yog siv rau kev nqaim yas?
1. NAK80 pwm steel yog pre-hardened yas pwm steel. Nws muaj kev ua haujlwm zoo polishing thiab carving muaj peev xwm. Tom qab cov khoom siv tshuaj kho mob, nws ua mos thiab tuaj yeem ua haujlwm txias. Tom qab ua rau hauv pwm, nws dhau los kho kev laus kom ntseeg tau tias nws siv tau thiab txo qhov kev kho cua sov deformation.
2. P20 thiab NAK80 tsis yog tib hom hlau. P20 yog qib Asmeskas, sib xws rau qib Japanese PX5, NAK80 yog qib Nyij Pooj, sib xws rau qib Asmeskas qib P21. Raws li ib txwm muaj, qhov nyuaj ntawm P20 yog HRC 28-32 degrees, thiab hardness ntawm NAK80 yog HRC{10}} degrees. Tsis tas li ntawd, polishing kev ua tau zoo ntawm NAK80 zoo dua P20.
3. NAK80 yog ib daim iav ua ntej hardened polished yas pwm hlau. S136 yog hom cua tsis muaj hlau tsis muaj zog, thiab daim iav polished yas pwm hlau nrog corrosion thiab xeb kuj. Lub hardness yog txawv. NAK80 yog pre-hardened pwm steel nrog lub Hoobkas hardness ntawm HRC 38-41.
4. X40CrMoV51 kub ua hauj lwm steel muaj zoo toughness thiab ductility, zoo heev txiav thiab polishing zog, muaj peev xwm tiv taus kub fusion thiab thermal stress fatigue, thiab yog ruaj khov nyob rau hauv loj thiab tsis yooj yim deformed tom qab kev kho cua sov. Nws muaj zoo heev liab hardness. 2344 steel yog haum rau dav hlau tuag-casting, extrusion pwm, thiab compound pwm. PA, POM, PS, PE, EP yas pwm. Kub ua hauj lwm pwm hlau yog tsim rau txhuas, zinc, thiab alloy tuag-casting pwm.
Dab tsi yog cov txheej txheem quenching rau NAK80 pwm steel?
1. Cov pa spheroidizing annealing: annealing kub yog 780-810 degree, thiab qhov txias txias yog maj mam txo kom tsawg dua los yog sib npaug li 650 degree nrog rau qhov cub ntawm qhov cua txias ntawm 25 degree / teev. Lub sijhawm kho cua sov ntawm cov txheej txheem no yog ntau tshaj 20 teev, thiab qhov tsis sib xws ntawm carbides tom qab annealing yuav cuam tshuam rau kev ua haujlwm txias tom ntej thiab qhov kawg quenching thiab tempering qauv thiab cov khoom.
2. Cov txheej txheem kev kho cua sov xws li normalizing, quenching, thiab tempering tuaj yeem txhim kho qhov hardness thiab hnav tsis kam ntawm NAK80, thiab kev kho saum npoo ntawm NAK80 tuaj yeem cuam tshuam rau nws cov hnav tsis kam. Cov tshuaj muaj pes tsawg leeg ntawm NAK80 yog C: 10-20, Si: 10-40, Mn: 30-60, Cr: 80-30, Mo: 20-40, Ni: { {9}}.
3. Cov txheej txheem kho cua sov ntawm Nak80 pwm steel feem ntau suav nrog peb kauj ruam: annealing, quenching, thiab tempering. Ua ntej, cov txheej txheem annealing. Annealing yog tshem tawm cov kev ntxhov siab sab hauv ntawm pwm hlau, txhim kho nws cov machinability thiab plasticity. Qhov ntsuas kub yog feem ntau yog 780-820 degree, lub sijhawm tuav yog 2-4 teev, thiab tom qab ntawd txias rau chav sov.
4. Kev kho cua sov ntawm NAK80 pwm hlau feem ntau muab faib ua ob pawg: kev kho cua sov ua ntej thiab kev kho cua sov kawg. Kev kho cua sov uas ua tiav qhov kev ua tau zoo kawg ntawm daim hlau yog hu ua kev kho cua sov kawg, xws li quenching thiab tempering; Kev kho cua sov uas npaj cov qauv lossis cov khoom siv rau kev kho cua sov zaum kawg yog hu ua kev npaj kho cua sov, xws li annealing, normalizing, thiab lwm yam.
5. Paub meej: NAK80 steel belongs rau Ni Al Cu hnub nyoog hardening steel, uas yog ib tug high-kev ua tau zoo thiab high-precision high-qib iav yas pwm steel. Cov yam ntxwv ntawm cov yas pwm steel NAK80: Nws muaj cov iav zoo ua thiab tso tawm cov khoom ua haujlwm.
6. Yog li ntawd, nws yog feem ntau siv nyob rau hauv kev txhaj tshuaj molding pwm. Ntxiv rau qhov zoo tshaj plaws weldability, nws kuj tseem tsim nyog rau kev ua pwm xws li kev ntxhib los mos thiab ua daim iav. Ntawm qhov tod tes, nws muaj lub hnub nyoog hardening yam ntxwv ( nag lossis daus hardening), yog li nws tsis tuaj yeem quenched lossis tempered. NAK8NAK80, zoo li NAK55, kuj yog cov hlau ua ntej rau SCM series muag los ntawm Datong Tshwj Xeeb Steel.
