1. Dab tsi cov khoom siv yog 519 9840 steel yeeb nkab?
A 519 9840} yog cov yeeb nkab ntawm cov yeeb nkab Alloy Steel Yeeb Nkab tau teev nyob rau hauv ASTM A516 Txuj Ci, Sib Xws Li Qib 40B46 (lossis cov yeeb yaj kiab zoo sib xws). Nws cov tshuaj lom neeg muaj kwv yees li 0.40%- 0.46% carbon, nrog alloying ntsiab xws li alloying ntsiab xws li alloying ntsiab xws li alloy (CR) thiab Molybdenum (MO). Nws yog cov khoom siv hluav taws xob nruab nrab nrog cov roj hlau siab nrog lub zog siab, kev ua kom nruj, ua rau nws muaj kev haum rau cov khoom siv hluav taws xob hnyav.
2. Dab tsi yog nws cov ntawv thov raug?
Automotive: Tseem Ceeb Ntaus - Cov kabmob sib xws xws li tsav cov ntaub ntawv, qag, thiab cov pas nrig.
Engineering Machinery: Hnav {-} Cov khoom siv ua hluav taws xob xws li Hydraulic Thooj Voos Kheej, cov khoom siv tes, thiab iav hau.
Cov Khoom Siv Zog: Qaug zog -} Cov roj tiv thaiv cov roj laum thiab siv tshuab tsuas.
3. Dab tsi yog nws cov txiaj ntsig dhau ntawm cov yeeb nkab steel hlau (xws li 20 # steel)?
Lub zog siab dua: tensile lub zog tuaj yeem ncav cuag 700-900 MPa, siab dua li cov pa roj carbon hlau. Zoo heev Cov Hluav Taws Xob Tshav Kub: Hardness thiab Tougness tuaj yeem txhim kho ntxiv los ntawm quenching thiab tempering (quenching + tempering).
Txhim kho corrosion resistance: chromium- molybdenum alloy kev txhim kho mus rau oxidation thiab ib puag ncig corrosion.
4. Yuav ua li cas ceev faj yuav tsum tau noj thaum ua thiab vuam?
Vuam: preheat rau 200 {{- 300℃thiab txias maj mam tom qab vuam. Cov hluav taws xob qis (xws li E7018) pom zoo.
Machining: Vim yog lub siab tawv, carbide cov cuab yeej tau pom zoo thiab yuav tsum tau txias.
Kev Kho Cua Sov: Zam kom cov cua sov ceev lossis cua txias kom tiv thaiv deformation lossis tawg.
5. Peb tuaj yeem txheeb xyuas tau tias cov qauv ua tau zoo li cas?
Kev Kuaj Ntsuas: Spectrometers yog siv los xyuas cov ntsiab lus ntawm cov ntsiab lus tseem ceeb xws li CR (0.8% -1.1%) thiab mo (0.15% -0.25%).
Cov cuab yeej cov cuab yeej kuaj: Tensile muaj zog, tawm lub zog (ntau dua los yog sib npaug zos rau 550 MPA nruj yog soj ntsuam.
Tsis - Kev sim tshuaj ntxiv: Ultrasonic lossis Sib Nqus Particle Partic Paus yog siv los xyuas kom qhov tsis muaj kab nrib pleb lossis kev suav nrog.
