Apparatus for curing a composite laminate

• US 8,142,707 B2
• Filed: 12/18/2003
• Issued: 03/27/2012
• Est. Priority Date: 12/23/2002
• Status: Active Grant

• Current Assignee: Airbus Operations Limited (Airbus SE)
• Original Assignee: Airbus Operations Limited (Airbus SE)
• Inventors: Stacey, Paul S, Williams, Stephen
• Primary Examiner(s): Johnson, Christina
• Assistant Examiner(s): HAUTH, GALEN H
• Application Number:
  US10/539,286
• Publication Number:
  US 20060249885A1
• Time in Patent Office: 3,022 Days
• Field of Search: 425/143, 700/198, 700/205, 264/406, 264/410
• US Class Current: 264/410
• CPC Class Codes: B29C 35/0227 using pressure vessels, e.g. autoclaves, vulcanising pans B29C35/065 takes precedence
• CPC Class Codes: B29C 35/0288 Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process controlling or regulating chemical, physical or physico- chemical processes in general B01J19/0006

Abstract

An apparatus and method for controlling the curing process during the manufacture of composite laminates and components. The apparatus including a temperature controlled vessel such as an autoclave in which the material is placed during curing and an infra-red temperature measuring device such as a camera located remotely from the component to measure the temperature of at least part of the material during curing.

Claims

1. A method for curing composite material including the steps of;

placing the material in a temperature controlled vessel and then,

curing the material and during the curing monitoring the taking of temperature readings and monitoring of the temperature of at least part of the material using an infra-red device remote from the material, and

processing the temperature readings and then adjusting the temperature of the vessel to maintain a constant curing temperature, including the step of monitoring the temperature of the material to determine the location and existence of voids during curing.

2. A method for curing composite material, said method including the steps of:

placing the material in a temperature controlled vessel;

curing the material;

during said curing step, monitoring the temperature of at least part of the material using an infra-red device remote from the material; and

adjusting the temperature of the vessel to maintain a constant curing temperature, including the step of monitoring the temperature of the material to determine the location and existence of voids during curing.

3. A method for curing composite material as claimed in claim 2 including the step of locating said infra-red device outside the vessel.

4. A method for curing composite material as claimed in claim 2 wherein the temperature controlled vessel is an autoclave.

5. A method for curing composite material as claimed in claim 2 wherein the infra-red temperature measuring device is a camera.

6. A method for curing composite material as claimed in claim 2 wherein said monitoring step includes monitoring the temperature across the whole of the material.

7. A method for curing composite material as claimed in claim 5, wherein said camera for monitoring the temperature across the whole of the material is moveably mounted for allowing larger structures to be monitored by one camera.

8. A method for curing composite material as claimed in claim 5, wherein said method includes the steps of:

selecting specific points on the component for taking readings; and

directing said camera to the selected specific points.

9. A method for curing composite material as claimed in claim 2, wherein said method includes the step of monitoring the temperature of the vessel prior to and during curing of the material.