spiral flow test

spiral flow test

[′spī·rəl ′flō ‚test]
(engineering)
The determination of the flow properties of a thermoplastic resin by measuring the length and weight of resin flowing along the path of a spiral cavity.
References in periodicals archive ?
The spiral flow test was carried out with the injection molding machine at 225[degrees]C.
Says David Kazmer, the GE engineer who developed the program, the radial flow pattern used in this simulation is a good model for what happens in most gating situations, and a lot closer to "real life" than the channel flow observed in spiral flow test molds.
According to GE Plastics, the new Valox grades achieve more than double the flow of existing PBT resins in spiral flow tests. And they reduce peak filling pressure by more than 250/0-30% versus similar conventional grades.