Damper plate and method for producing thereof
AssigneeEbara Corporation
InventorsHirokazu Takayama, Toshiyuki Ogawa, Atsushi Kaneko
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Abstract
There are disclosed a damper plate for a rotary machine and a method for producing thereof which makes it possible to produce a honeycomb-type damper plate with accurate dimensions and reasonable cost. In the method for producing a damper plate for sealing between a rotating portion and a stationary portion of a rotary machine and cushioning said rotating portion, the damper plate has a plurality of convex portions and concave portions, and a plurality of the convex portions and the concave portions are processed by a superplastic processing method.
Claims7
A damper plate for sealing between a rotating portion and a stationary portion of a rotary machine and cushioning said rotating portion comprising:
- a superplastic material plate;
- and
- a plurality of convex portions and concave portions defined in said superplastic material plate, wherein said superplastic material is selected from the group consisting of austenitic stainless steel, two-phase stainless steel, aluminum alloy, titanium alloy and ceramics, and wherein said superplastic material plate has a thickness of substantially 0.3 mm.
A damper plate for sealing between a rotating portion and a stationary portion of a rotary machine and cushioning said rotating portion comprising:
- a superplastic material plate having a thickness of substantially 0.3 mm;
- and
- a plurality of convex portions and concave portions defined in said superplastic material plate,
- wherein said superplastic material plate is integrally provided with a bent portion for attaching said superplastic plate to a rotating portion or a stationary portion of said rotary machine.
Dependencies are inferred from the claim text.