Screen netting and method for producing a screen netting
OwnerHorst Dietschreitinventor
Life of this patent
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Abstract
The invention relates to a method for producing a screen netting (1), whereby openings (2) are made in a blank by means of water jet cutting, whereby the water jet cutting is carried out in several steps, whereby in a first step, a pre-cutting of the openings (2) of the screen netting (1) is carried out, and in at least one second step, a finish-cutting of the openings (2) of the screen netting (1) is carried out. The invention also relates to a screen netting (1) that is produced in such a way.
Claims15
A method for producing a screen netting having a plurality of defined openings in a blank of sheet material selected from the group consisting of metals and ceramics, by water jet cutting, comprising the steps of:
- modeling an opening width and opening angle (α) and sheet material thickness to define the openings of the screen netting;
- pre-cutting of the openings in the sheet material to a defined depth wherein the openings widen in the direction of flow and;
- finish-cutting the openings of the sheet material to produce a screen netting in accordance with the defined opening width and opening angle (α) and sheet material thickness modeling.
A screen netting for extracting flowable liquids in a centrifuge, wherein said screen netting is fabricated from a blank of sheet material having a defined sheet material thickness, said sheet material selected from the group consisting of metals and ceramics, said screen netting having a plurality of defined openings and wherein the openings of the screen netting are created by water jet cutting and comprise an opening width and opening angle (α) and further wherein the openings widen in the direction of flow and, wherein the opening angle (α) further comprises a half angle (1/α) of the openings relative to the perpendicular is in a range greater than or equal to about 3° up to about 15°.
A method for producing a screen netting having a plurality of defined openings in a blank of plastic sheet material by water jet cutting, comprising the steps of:
- modeling an opening width and opening angle (α) and sheet material thickness to define the openings of the screen netting;
- pre-cutting of the openings in the sheet material to a defined depth wherein the openings widen in the direction of flow and;
- finish-cutting the openings of the sheet material to produce a screen netting in accordance with the defined opening width and opening angle (α) and sheet material thickness modeling;
- wherein the pre-cutting and the finish-cutting are performed by water-abrasive-suspension jet cutting or water-abrasive-injector-jet cutting.
Dependencies are inferred from the claim text.