Facility for depositing a shaped filed roving

Patent metadata

Field	Value
Publication number	US-10994503-B2
Application number	US-201816758277-A
Country	US
Kind code	B2
Filing date	Oct 23, 2018
Priority date	Oct 24, 2017
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

An installation for depositing a shaped filled roving intended to be used to manufacture a composite-material component, includes a device for feeding a fibrous roving impregnated with a composition including a binder and ceramic or carbon fillers, a die for shaping and draining the binder defined by at least one porous surface, the die having an evolving section between an inlet section and an outlet section, the inlet section being larger than the outlet section, a support in communication with the die outlet on which the shaped roving is to be deposited, and a first conveying device configured to convey the roving from the feed device through the die and to the support.

First claim

The invention claimed is:

1. An apparatus for depositing a shaped filled fibrous roving for use in the manufacture of a composite-material component on a support, the apparatus comprising:
a device for forming an impregnated fibrous roving which is impregnated with a composition comprising a binder and ceramic or carbon fillers,
a die for shaping the impregnated fibrous roving and draining the binder to form a shaped filled fibrous roving, the die having a first porous surface configured to drain the binder, the die further having a channel extending from a die inlet to a die outlet, wherein a cross-sectional area of the die inlet is greater than a cross-sectional area of the die outlet, and wherein the impregnated fibrous roving passes through the channel, and
the support on which the shaped filled fibrous roving is to be deposited.

2. The apparatus according to claim 1 , wherein the first porous surface has a pore size smaller than a size of the fillers.

3. The apparatus according to claim 1 , further comprising a conveying device comprising a porous film which travels between the impregnated fibrous roving and the first porous surface.

4. The apparatus according to claim 3 , wherein the porous film has a pore size greater than a size of the fillers.

5. The apparatus according to claim 1 , further comprising a pumping device in communication with the first porous surface.

6. The apparatus according to claim 1 , further comprising a dispensing head configured to deposit the shaped filled fibrous roving on the support.

7. The apparatus according to claim 6 , wherein the dispensing head is a dispensing head for automatic fiber placement.

8. The apparatus according to claim 1 , wherein the support comprises a storage roll.

9. The apparatus according to claim 1 , wherein the first porous surface is movable in a direction transverse to a conveying direction of the impregnated fibrous roving in the channel of the die.

10. The apparatus according to claim 1 , further comprising a heater device for the die.

11. The apparatus according to claim 1 , wherein the die further comprises a second porous surfaces configured to drain the binder, wherein the first and second porous surfaces face each other.

12. A process for manufacturing a composite-material component, comprising:
providing the apparatus according to claim 1 ,
forming the impregnated fibrous roving which is impregnated with a composition comprising a binder and ceramic or carbon fillers using the device,
shaping the impregnated fibrous roving and draining the binder to form a shaped filled fibrous roving by passing the impregnated fibrous roving through the channel of the die,
depositing the shaped filled fibrous roving on the support,
forming a fibrous preform comprising the ceramic or carbon fillers from one or more shaped filled fibrous rovings, and
forming a matrix in pores of the fibrous preform from the ceramic or carbon fillers.

13. The process according to claim 12 , wherein the matrix is formed by sintering the fillers.

14. The process according to claim 12 , wherein the impregnated fibrous roving advances stepwise through the channel of the die during its shaping.

Assignees

• Safran Ceram

Inventors

• Schwartz Mathieu
• Delehouze Arnaud
• Laval Nicolas
• Desjoyeaux Bertrand

Classifications

• B29C70/52 Primary

  Pultrusion, i.e. forming and compressing by continuously pulling through a die · CPC title

• C04B35/63408 Primary

  Polyalkenes · CPC title

• C04B35/46

  based on titanium oxides or titanates (containing also zirconium or hafnium oxides, zirconates or hafnates C04B35/49) · CPC title

• C04B35/486

  Fine ceramics · CPC title

• C04B35/565

  based on silicon carbide · CPC title