Advanced Heat Kurapa Technologies yekubereka Kugadzira | Shangdong Yuehereng

Kupisa kurapwa kunotora matanda ekuita kunosanganisira kusangana nekufona hupenyu hwekuneta (L10 chiyero), pfeka kurwisa, uye kudzikama kwakasimba. Kugadzirwa kwemazuva ano kunoda ± 3 ° C tembiricha control uye Process Kugona CPK≥1.33. Core kutevedzana: Sperroidizing Annealing → Bvisa → yakaderera-tembiricha tempering.

1.spheiiiiidizing Annealing

Chinangwa: Bvisa Kuregerera Network (≤grade 2), Fomu Homogeneous Sphroidized Pearlite (Carbide Spheroization ≥90%, Diameter 0.2.66), kuoma 179-207 hb. Maviri-nhanho protocol:

• Nhanho 1: 790 × 10 ° C × 2-4H Austenitization (chikamu chebhokisi chombo)
• Nhanho yechipiri: 710 × 10 ° C × 4-6h inononoka kutonhora (≤20 ° C / H) kusvika mazana matanhatu ° C, inodzorwa kutonhora curveinodzivirira coarse carbide precipitation

Kudengenyeka kweparamende: Saizi yeGragwaro 7-8 (ASTM E112)

2.Quenching Process

Salsh yekugezera (BCAC₂: KCL = 3: 1) kana kuchengetedza mamiriro (N₂-ch₃oh, oxygen probe ≤0.5%):

• GCRA15 Steel: 845 × 5 ° C × Nguva yechinhu (Wall tsizi × 0.8-1.2 min / mm)
• Kutonhora Kinetics: 800 → 500 ° C inotonhorera rate
• Target: Cryptocrystalline Martensite (> 95%, sindano kureba ≤0.02mm) + inochengetwa Austenite (<5%)

3.Wakatsika-tembiricha

150-180 ° C × 2-4h (± 3 ° C) mukati Yakamanikidzwa Conction Air Fire:

• ε-Fe₂.₄c yakatsvaira kuMartensite, kuomarara 61-65 hrc
• Austenite Decomposition:> 80% (XD Verified)
• STRAMU RINONZE MUFANANIDZO: σ_resual = σ_initial × e ^ (- 0.02t) (t mumaawa)

4.special processes & ivhu

• Ateremperpering: 230 ± 10 ° C Sals Bath
• Zvakadzika cryo: -70 ° C × 4h (Liquid nitrogen Spray), Austenite → marita erensecformation> 95%
• Laser kuomesa.

Mhando yekusimbisa chimiro: