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US 11,772,148 B2Granted
Forming system
AssigneeSumitomo Heavy Industries, Ltd.
InventorKei Yamauchi
Life of this patent
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Abstract
Provided is a forming system that expands a heated metal pipe material to form a metal pipe. The forming system includes a gas supply portion that supplies a gas to the heated metal pipe material to expand the metal pipe material, a nozzle that includes a feed port for supplying the gas, a discharge portion that discharges the gas after expanding the metal pipe material, and a cooling unit that cools the gas flowing through the discharge portion and is provided in the nozzle.
Claims12
A forming system that expands a heated metal pipe material to form a metal pipe, the system comprising:
- a gas supply portion configured to supply a gas to the heated metal pipe material to expand the metal pipe material;
- a nozzle including a feed port for supplying the gas;
- a discharge portion configured to discharge the gas after expanding the metal pipe material;
- and
- a cooling unit configured to cool the gas flowing through the discharge portion and-is provided in the nozzle,
- wherein the cooling unit includes a reduced section where a cross-sectional area of the cooling unit is reduced and a first expanded section and a second expanded section whose cross-sectional areas are expanded, and
- the reduced section is provided adjacent to and between the first expanded section and the second expanded section.
4 more elements
Dependencies are inferred from the claim text.