Fibre-forming plate

Patent metadata

Field	Value
Publication number	US-11505490-B2
Application number	US-201816629825-A
Country	US
Kind code	B2
Filing date	Jul 6, 2018
Priority date	Jul 11, 2017
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A spinner for fiberizing mineral fibers, in particular glass fibers, by centrifugation from a molten material, includes a peripheral barrel pierced with orifices for the passage of the molten material and for obtaining fibers by drawing during the centrifugation, a wheel center connecting the peripheral barrel to an upper flange for securing the spinner in a fiberizing device, a turnup extending the peripheral barrel in the bottom part of the spinner and making an angle β herewith, wherein the angle β is strictly less than 90°.

First claim

The invention claimed is:

1. A spinner for fiberizing mineral fibers, by centrifugation from a molten material, comprising:
a peripheral barrel pierced with orifices for the passage of molten material and for obtaining fibers by drawing during said centrifugation,
a wheel center connecting said peripheral barrel to an upper flange for securing the spinner in a fiberizing device,
a turnup extending said peripheral barrel in the bottom part of the spinner, said turnup having an inner surface forming part of an interior of the spinner and an outer surface, opposite said inner surface, forming part of a bottom surface of the spinner that faces an exterior environment, and the inner surface of the turn up making an angle β with the peripheral barrel,
wherein the angle β is strictly less than 90°, and
wherein the spinner is a bottomless spinner.

2. The spinner as claimed in claim 1 , wherein the turnup has an angle of inclination α with respect to the horizontal that is less than or equal to 10°.

3. The spinner as claimed in claim 2 , wherein the angle α is strictly less than 5°.

4. The spinner as claimed in claim 3 , wherein the angle α is strictly less than 2°.

5. The spinner as claimed in claim 4 , wherein the angle α is zero.

6. The spinner as claimed in claim 1 , wherein the turnup has a total length less than 10% of a total diameter of the spinner.

7. The spinner as claimed in claim 1 , wherein the turnup has, over its entire length, a substantially uniform thickness.

8. The spinner as claimed in claim 1 , a diameter of which is comprised between 200 and 800 mm.

9. The spinner as claimed in claim 1 , wherein the turnup has a total length less than 15% of a diameter of the spinner.

10. The spinner as claimed in claim 1 , wherein the peripheral barrel makes an angle γ comprised between 1 and 10° with the vertical.

11. The spinner as claimed in claim 1 , wherein the turnup has a total length less than 50% of the length measured, in a radial plane of section, between an exterior edge of the spinner and an interior end of the spinner-securing flange.

12. The spinner as claimed in claim 1 , wherein the angle β is strictly less than 87°.

13. The spinner as claimed in claim 1 , wherein the angle β is strictly less than 85°.

14. A method comprising utilizing a spinner as claimed in claim 1 for fiberizing a glass wool or a mineral wool.

15. The spinner as claimed in claim 1 , wherein the mineral fibers are glass fibers.

16. The spinner as claimed in claim 1 , wherein the peripheral barrel is frustoconical.

17. The spinner as claimed in claim 1 , wherein the angle β is strictly less than 84°.

18. A spinner for fiberizing mineral fibers, by centrifugation from a molten material, comprising:
a peripheral barrel pierced with orifices for the passage of molten material and for obtaining fibers by drawing during said centrifugation,
a wheel center connecting said peripheral barrel to an upper flange for securing the spinner in a fiberizing device,
a turnup extending said peripheral barrel in the bottom part of the spinner and making an angle β with the peripheral barrel,
wherein the angle β is strictly less than 87°,
wherein the turnup has a total length less than 50% of the length measured, in a radial plane of section, between an exterior edge of the spinner and an interior end of the spinner-securing flange, and
wherein the spinner is a bottomless spinner.

19. The spinner as claimed in claim 18 , wherein the angle β is strictly less than 85°.

20. The spinner as claimed in claim 18 , wherein the turnup has an angle of inclination α with respect to the horizontal that is less than or equal to 2°.

Assignees

• Saint Gobain Isover

Inventors

• Lahmar Flavien
• Vianey François
• Labarthe Jacques

Classifications

• C03B37/045 Primary

  Construction of the spinner cups · CPC title