Naon prosés perawatan panas A286 konci konci?

Proses perawatan panas pikeun iklas konci konci konci: Perawatan solusi sareng sepuh. Parameter prosés khusus sareng léngkah sapertos kieu:

1. Perawatan solusi
– Keungeut suhu: Biasana, heating at 982°C (1800°F) for one hour, followed by rapid cooling. Some standards recommend holding at 899°C for two hours, followed by rapid cooling.
– Cooling Method: Biasana, air cooling or oil quenching is used.
– Purpose: High-temperature heating dissolves carbides and nitrides in the alloy, resulting in a single-phase austenite structure, relieving processing stresses, and improving the toughness and ductility of the material.

2. Aging Treatment
– Keungeut suhu: 704-760°C (1300-1400°F).
– Holding Time: Biasana 12-16 jam, followed by air cooling.

3. Special Treatment
– Double Aging: Dina sababaraha kasus, a double aging treatment is performed. This involves holding at 704/760°C for 16 jam, then air cooling to 649°C, holding for another 8-12 jam, and finally air cooling. This treatment further improves notch cracking strength while maintaining a balance between toughness and hardness.
– Dimensional Change: After aging, bahan bakal ngaleutikan saeutik, kira-kira 0.001 di / di.

4. Tindakan pancegahan
– Kontrol Suhu: Suhu solusi sareng perawatan sepuh kedah dikontrol sacara ketat pikeun mastikeun sipat bahan anu optimal.
– Laju cooling: Laju cooling sanggeus perlakuan solusi boga dampak signifikan dina sipat bahan. Cooling gancang mantuan ngahontal struktur sisikian rupa, kukituna ngaronjatkeun kateguhan.
– Sepuh diulang: Dina sababaraha kasus, sababaraha perlakuan sepuh bisa jadi perlu jang meberkeun ngaoptimalkeun sipat bahan.

Ngaliwatan prosés perlakuan panas ieu, sisipan konci konci A286 ngahontal kakuatan suhu luhur anu saé, lalawanan korosi, jeung sipat processing alus, nyumponan sarat aplikasi pikeun nungtut widang sapertos aerospace.