Dè am pròiseas làimhseachaidh teas a th’ ann an cuir a-steach glasadh iuchrach A286?

Tha dà ìre sa phròiseas làimhseachaidh teas airson cuir a-steach glasadh iuchrach A286: làimhseachadh fuasgladh agus aois. Tha paramadairean pròiseas sònraichte agus ceumannan mar a leanas:

1. Làimhseachadh Fuasgladh
– Raon Teòthachd: Gu h-àbhaisteach, teasachadh aig 982 ° C (1800° F.) airson uair a thìde, air a leantainn le fuarachadh luath. Tha cuid de inbhean a’ moladh cumail aig 899 ° C airson dà uair a thìde, air a leantainn le fuarachadh luath.
– Modh fuarachaidh: Gu h-àbhaisteach, thathas a’ cleachdadh fuarachadh èadhair no quenching ola.
– Adhbhar: Bidh teasachadh àrd-teòthachd a 'leagail carbides agus nitrides anns an alloy, mar thoradh air structar austenite aon-ìre, faochadh cuideam giollachd, agus a 'leasachadh cruas agus ductility an stuth.

2. Làimhseachadh aosda
– Raon Teòthachd: 704-760°C (1300-1400° F.).
– A 'cumail ùine: Gu h-àbhaisteach 12-16 uairean, air a leantainn le fuarachadh èadhair.

3. Làimhseachadh Sònraichte
– Aosda dùbailte: Ann an cuid de chùisean, thèid làimhseachadh aois dùbailte a dhèanamh. Tha seo a’ toirt a-steach cumail aig 704/760 ° C airson 16 uairean, then air cooling to 649°C, holding for another 8-12 uairean, and finally air cooling. This treatment further improves notch cracking strength while maintaining a balance between toughness and hardness.
– Dimensional Change: After aging, the material will shrink slightly, approximately 0.001 in/in.

4. Precautions
– Temperature Control: The temperatures of the solution and aging treatments must be strictly controlled to ensure optimal material properties.
– Cooling Rate: The cooling rate after solution treatment has a significant impact on material properties. Rapid cooling helps achieve a fine grain structure, thereby improving toughness.
– Repeated Aging: Ann an cuid de chùisean, multiple aging treatments may be necessary to further optimize material properties.

Through this heat treatment process, the A286 key locking insert achieves excellent high-temperature strength, ATH-neartan crùbach, and good processing properties, a’ coinneachadh ri riatanasan tagraidh raointean dùbhlanach leithid aerospace.