High pressure cylinders including backing steel with tool steel lining
US6887322B2 · kind B2 · utility
1Cited by
31References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12965
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
High pressure cylinders comprising backing steel cylinders and tool steel liners are disclosed. An annealed tool steel liner is inserted into the backing steel cylinder, followed by heat treating to harden the tool steel liner. The tool steel liner may be provided as a single continuous tube, thereby avoiding problems associated with segmented liners. The high-pressure cylinders are suitable for use as plastic and rubber extruders injection molding cylinders and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.