Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling heat transfer with molding material
Patent
1990-06-15
1992-01-14
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling heat transfer with molding material
264 65, 419 42, 419 49, C04B 3564
Patent
active
050808419
ABSTRACT:
In a hot isostatic pressing (HIP) method, only the probe of a dilatometer is set in the pressurized heating space of the HIP apparatus, and the probe is attached to a test piece having a greater specific surface area made of the same material as the body to be treated. The test piece is treated by HIP together with the body to be treated, and the beginning of the contraction of the test piece is detected by the dilatometer. Then, the body is densified by keeping the pressure and the temperature not lower than those at the beginning of contraction of the test piece. According to the method of the invention, since suitable HIP treating conditions are determined immediately, each body to be treated can be treated by only one HIP suitably without repeating the troublesome HIP process. Also, since the body can be treated by HIP without elevating the temperature beyond the necessary temperature, the crystal grain growth of the body to be treated can be inhibited.
REFERENCES:
American Ceramic Bulletin, vol. 64, No. 9, (1985), pp. 1240-1244.
American Ceramic Society Bulletin, vol. 64, No. 5, 1985, pp. 719-723 (Brun et al.).
Derrington James
NKK Corporation
LandOfFree
Hot isostatic pressing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot isostatic pressing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot isostatic pressing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-539820