A rheometer die with a groove configuration for reducing sample slippage in a rheometer chamber is provided. The rheometer die includes a surface and at least one radial groove extending into the surface. The groove defines at least a portion of a sample-holding chamber constructed to hold a sample. The groove may include a first zone and a second zone with a transition zone therebetween. The groove may also include a substantially wedge-shaped portion with sidewalls which taper generally towards the center of the rheometer die such that imaginary extensions of the sidewalls intersect before reaching the center of the die. A plurality of grooves may extend into the rheometer die. The rheometer die may be incorporated into a rheometer for testing process characteristics of a material.
申请公布号
WO2007149435(A8)
申请公布日期
2008.03.20
申请号
WO2007US14279
申请日期
2007.06.18
申请人
ALPHA TECHNOLOGIES SERVICES LLC;GROW, ANDREW;PAWLOWSKI, HENRY;BUZEK, KEITH