Ua kom tiav kev kho cua sov cua technologies rau cov kabmob raug | SHANGDON YUEheng

Kev kho cua sov ua kom muaj kev ntsuas kev ua haujlwm nrog rau kev sib cuag kev ua kom qaug zog lub neej (L10 ntsuam xyuas), hnav tsis kam, thiab kev tawm tsam thiab seem. Hardg Ntau Lawm Yuav Tsum Ultrasonic ° C Kub Kev Tswj thiab Cov txheej txheem muaj peev xwm CPK≥1.33Cov. Core Sequence: Kev Sib Tw Ntxawm → Quenching → Tsawg-Kub Kub Qhuav → Toffilization.

1.Spheriding Annealing

Lub Hom Phiaj: Tshem Tawm Forging Carbide Networks (% Daim Ntawv Homogeneous Spheroidized ≥90%, INCH 0.2 -0.67 HB. Ob-theem raws tu qauv:

• Theem 1: 790 ± 10 ° C × 2-4h authenitization (ib nrab carbide xaus)
• Theem 2: 710 ° C_-6h txias txias (≤ C / H) rau 650 ° C, Txoj Kev Rho Tawm TxiasTiv Thaiv Cov Hlau Carbide nag lossis daus

Tseem ceeb parameter: Grain loj 7-8 (Astm E112)

2.Qhov txheej txheem txheej txheem

Ntsev da dej (BACL₂: KCl = 3: 1) lossis tiv thaiv huab cua (n₂-ch₃oh, oxygen sojntsuam ≤0.5%):

• GCR15 steel: 845 ± 5 ± 5 ± 5 ± 5 ± 5 ± kaum sij hawm Factor (Phab Ntsa Thickness × 0.8-1.2 min / hli)
• Cua txias kinetics: 800 → 500 ° Cooler tus nqi ≥45 ° C / S (Zam kev tsim ferration), qeeb txias hauv qab 300 ° C
• Lub Hom Phiaj: Cryptocrystalline Martensite (> 95%, Koob nuj nqis ntev 75M) + khaws Austenite (<5%)

3.Thaum-kub tempering

150-180 ° C × 2-4-± 3 ° C) hauv Forced convection cua rauv:

• ε-fe₂.₄c nag lossis dej nag nyob rau hauv martensite, hardness 61-65 hrc
• Austenite decomposition:> 80% (XRD txheeb xyuas)
• Kev Nyuaj Siab Nyem Cov Qauv: σ_residual = σ_initial × e ^ (- 0.02t) (t nyob rau hauv cov sij hawm)

4.SPECIAL Cov Txheej Txheem & Kev Tsim Tawm

• AUSTEMPERING: 230 ° C ntsev da dej × 2h → qis dua Bainite (58-62 HRC, KCV≥50J)
• Sib sib zog nqus cryo: -70 ° C × 4h (kua nitrogen tshuaj tsuag), Austenite → Martensite hloov pauv> 95%
• Laser Hardening Laser: 1064nm wavelength tsim 0.3mm Case Qhov tob, ↑ 40% sib cuag kev qaug zog lub neej

Kev Ncaj Ncees Zoo: