Tekinoroji yo kuvura ishyushye yo kubyara ibicuruzwa | Shangdong Yueheng

Ubushyuhe bugenga ibipimo byimikorere harimo no guhura numunaniro (L10), kwambara kurwanya, no gushikama duhamye. Umusaruro ugezweho urasaba ± 3 ° C Igenzura ryubushyuhe na Gutunganya ubushobozi CPK≥1.33. Urukurikirane: Spheroiteng AnneIAL → Kumara → Ubushyuhe-buke ubushyuhe → Guhungabanya umutekano.

1.Guhanira

Intego: Kuraho imiyoboro ya Carbide (≤grade 2), kora ibitsina byombi purbiteled pearlite (spheroidisation ya carbide. Amasezerano abiri:

• Icyiciro cya 1: 790 ± 10 ° C × 2-4h Austenite (Kuvuka karubake)
• Icyiciro cya 2: 710 ± 10 ° C × 4-6h gahoro gahoro (≤20 ° C / H) kugeza 650 ° C, Kugenzurwa GukonjeshaIrinde imvura ya Carbide

Ibipimo bikomeye: Ingano y'ibinyampeke 7-8 (ASTM E112)

Inzira rusange

Kwiyuhagira Umunyu (Bacl₂: KCL = 3: 1) cyangwa ikirere kirinda (N₂-Ch₃oh, Oxyvin Probe ≤0.5%):

• GCR15 Icyuma: 845 ± 5 ° C ×ram (urukuta rwibihe × 0.8-1. min / mm)
• Gukonjesha kinetics: 800 → 50 ° C Igipimo cya COOT ≥45 ° C / S (irinde gushiraho Ferrite), gukonjesha Ferrite) munsi ya 300 ° C.
• Intego: Cryptocrystalline Martensisite (> 95%, uburebure bwumushinge ≤0.02mm) + yagumanye Austetete (<5%)

3.Gukoresheje ubushyuhe

150-180 ° C × 2-4h (± 3 ° C) muri Kuhatira Ibitambaro byo mu kirere:

• Imvura ya Fe₂.₄₄. Gukomera 61-65 HRC
• Kubora Austenite:> 80% (Xrd yagenzuwe)
• INGINGO Z'UBUYOBOZI: σ_ibitaboual = σ_initial × e ^ (- 0.02t) (t mumasaha)

4.Umugaragaro / udushya

• Kwiga: 230 ±T C KUBAKA S. → Banite yo hepfo (58-62 HRC, KCV≥5J / CM²)
• Curyo ndende: -70 ° C × 4h (amazi ya azonden), austenite → Guhinduka kwa Marteri # 95%
• Laser ikomeye: 1064nm Uburebure butera uburebure bwa 0.3mm, ↑ 40% Twandikire Umunaniro Ubuzima

Ubwuzu Bwiza: