一种N10276异型材及其成型方法
The N10276 profile forming method, which employs a three-layer composite cladding, zoned gradient heating and cooling, four-roll rolling, and warm rolling treatment, solves the problems of oxidation, uneven deformation, and intergranular corrosion of N10276 alloy during complex cross-section hot forming, achieving efficient and uniform forming and high-quality profile production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU JINHE SPECIAL ALLOY MATERIALS CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-17
AI Technical Summary
N10276 alloy has problems such as high resistance to high-temperature deformation, narrow hot working window, easy oxidation, uneven deformation and intergranular corrosion defects during the hot forming process of complex cross-sections. In particular, it is prone to defects such as folding and cracking in irregular structural parts with convex cross-sections.
The material is protected by a three-layer composite sheath (outer layer of stainless steel, inner layer of hexagonal boron nitride lubricating layer, and middle layer of yttrium oxide stabilized zirconia ceramic fiber layer), with zoned gradient heating, four-roll reciprocating precision rolling and zoned gradient cooling, combined with warm rolling and secondary solution treatment, and finally pickled and peeled off with a mixture of nitric acid and hydrofluoric acid.
It achieves efficient molding, avoids the contradiction between high-temperature oxidation and heat conduction efficiency, eliminates deformation inhomogeneity, improves the surface quality and performance uniformity of finished products, and avoids intergranular corrosion.
Smart Images
Figure CN120984680B_ABST