Title:
VISCOELASTICITY MEASURING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP3224956
Kind Code:
B2
Abstract:
PURPOSE: To measure the viscoelasticity of rubber material by placing a specimen between two dies, cooling it at least once, restrict pressure drop to avoid the slide of the specimen between the dies, heat it again and measuring torque in an at-least-one cooling period to provide the dynamic property of the specimen.
CONSTITUTION: Both dies 1, 2 are located to open, material specimen to be tested is filled in the lower die 2 and both dies are closed. The dies, when closed, are kept at temperatures of 70-200°C so as to soften the material accurately corresponding to the shape of the dies. After the dies are closed, the material is cooled at a speed of 2°C/sec in a short time, generally within 60 seconds. The temperature of the specimen, after cooled, is preferably 0-20°C. The torque, pressure and temperature of the material is information for machining property. Then, it is heated again at a peed of 1°C/sec and cooled again at least once while monitoring the torque, temperature and pressure.
Inventors:
David King
Mycle Stork
David Russling
Mycle Stork
David Russling
Application Number:
JP27095694A
Publication Date:
November 05, 2001
Filing Date:
November 04, 1994
Export Citation:
Assignee:
Solutia You K Limited
International Classes:
G01N11/16; G01N19/00; G01N11/14; (IPC1-7): G01N11/14; G01N19/00
Domestic Patent References:
| JP6073339A | ||||
| JP5292580A |
Other References:
【文献】米国特許3538758(US,A)
【文献】欧州特許出願公開43892(EP,A1)
【文献】欧州特許出願公開43892(EP,A1)
Attorney, Agent or Firm:
Chika Takagi (1 person outside)