Coaxial smart susceptor

Patent metadata

Field	Value
Publication number	US-10470253-B2
Application number	US-201414548045-A
Country	US
Kind code	B2
Filing date	Nov 19, 2014
Priority date	Nov 19, 2014
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A coaxially arranged smart susceptor conductor, comprising a smart susceptor core comprising an alloy having a first Curie temperature point and a first smart susceptor shell coaxially arranged around the smart susceptor core. The first smart susceptor shell comprising a second Curie temperature point that is different than the first Curie temperature point of the smart susceptor core. In one arrangement, the second Curie temperature point of the first smart susceptor shell is lower than the first Curie temperature point of the smart susceptor core. In another arrangement, the smart susceptor conductor further comprises a second smart susceptor shell disposed about the first smart susceptor shell. The second smart susceptor shell comprising a third Curie temperature point.

First claim

We claim:

1. A coaxially arranged susceptor array, comprising:
a susceptor core comprising an alloy having a first Curie temperature;
a first susceptor shell coaxially arranged around the susceptor core, and
a conductor comprising two portions,
wherein the susceptor core and the first susceptor shell are between the two portions of the conductor,
wherein the conductor is configured to receive current and thereby induce eddy currents within the susceptor core and the first susceptor shell, and
wherein the first susceptor shell comprises a second Curie temperature that is different than the first Curie temperature of the susceptor core.

2. The susceptor array of claim 1 wherein
the second Curie temperature of the first susceptor shell is lower than the first Curie temperature of the susceptor core.

3. The susceptor array of claim 1 further comprising:
a second susceptor shell disposed about the first susceptor shell,
the second susceptor shell comprising a third Curie temperature.

4. The susceptor array of claim 3 wherein
the third Curie temperature of the second susceptor shell is different than the first Curie temperature of the susceptor core.

5. The susceptor array of claim 3 wherein
the third Curie temperature of the second susceptor shell is different than the second Curie temperature of the first susceptor shell.

6. The susceptor array of claim 1 wherein the first susceptor shell comprises a shell depth of approximately 2 to about 10 mils.

7. The susceptor array of claim 1 wherein the susceptor core comprises a diameter of approximately 5 to about 15 mils.

8. The susceptor array of claim 1 wherein the susceptor shell comprises an alloy comprising approximately 32% Nickel and 68% Iron.

9. The susceptor array of claim 1 wherein the susceptor core comprises an alloy comprising approximately 34% Nickel and 66% Iron.

10. A coaxially arranged susceptor array, comprising:
a susceptor core comprising an alloy having a first Curie temperature;
a first susceptor shell coaxially arranged around the susceptor core; and
a conductor, wherein the susceptor core and the first susceptor shell are wrapped around the conductor,
wherein the first susceptor shell comprises a second Curie temperature that is different than the first Curie temperature of the susceptor core.

11. The susceptor array of claim 10 wherein
the second Curie temperature of the first susceptor shell is lower than the first Curie temperature of the susceptor core.

12. The susceptor array of claim 10 further comprising:
a second susceptor shell disposed about the first susceptor shell,
the second susceptor shell comprising a third Curie temperature.

13. The susceptor array of claim 12 wherein
the third Curie temperature of the second susceptor shell is different than the first Curie temperature of the susceptor core.

14. The susceptor array of claim 12 wherein
the third Curie temperature of the second susceptor shell is different than the second Curie temperature of the first susceptor shell.

15. The susceptor array of claim 10 wherein the first susceptor shell comprises a shell depth of approximately 2 to about 10 mils.

16. The susceptor array of claim 10 wherein the susceptor core comprises a diameter of approximately 5 to about 15 mils.

17. The susceptor array of claim 10 wherein the susceptor shell comprises an alloy comprising approximately 32% Nickel and 68% Iron.

18. The susceptor array of claim 10 wherein the susceptor core comprises an alloy comprising approximately 34% Nickel and 66% Iron.

Assignees

• Boeing Co

Inventors

• Miller Robert James
• Matsen Marc Rollo
• Chen Cameron Kai-Ming
• Glauber Leah Gillian
• Kestner James M
• Hottes Christopher John

Classifications

• H05B2206/023

  using the curie point of the material in which heating current is being generated to control the heating temperature · CPC title

• H05B6/14

  Tools, e.g. nozzles, rollers, calenders · CPC title

• H05B6/06

  Control, e.g. of temperature, of power · CPC title

• H05B6/40

  Establishing desired heat distribution, e.g. to heat particular parts of workpieces · CPC title

• C22C38/08

  containing nickel {(C22C38/105 takes precedence)} · CPC title