FIELD: metallurgy.
SUBSTANCE: split rings installed on a mandrel are borne with their end parts against each other, tightened with a clamp band and provided with shape-generating outer cylindrical surface with a groove for an internal corrugation of the bellows. The groove is rounded radially to cylindrical surface, and annular cavities are made on the groove walls. Flattening is performed due to different coefficients of linear expansion of the mandrel with rings and bellows.
EFFECT: improving quality of shape of the bellows corrugation and the cylindrical shell.
5 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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| BELLOWS FOR COMPENSATION OF DEFORMATION IN PIPE LINE | 1998 |
|
RU2122148C1 |
