New sheet material
Test Material for the Mold Parting Line
Under the name Mold-Align, Sensor Products Inc., Madison, New Jersey, USA, have introduced a new sheet material designed to determine surface pressures in injection molds. The sheet is placed in between two mold halves, and changes color relative to the amount of contact force. This way, the operator knows if the two mold halves are aligned properly, and if the surface pressure acting upon the parting line and platens is homogenous. These conditions can increase outputs, and diminish flaws, such as flashes, voids, or burnt sectors. Correctly positioned platens moreover reduce machine wear.
Traditional methods using blueing agents, alumina, and conventional carbon paper, are less precise and detailed, in addition to being less user-friendly. To use Mold-Align, the operator does not have to be particularly trained, and no residues are produced, that would have to be cleaned up afterwards. While blueing agents are applied to only one mold half, merely showing if the color is transferred, Mold-Align enables the user to determine surface sectors of high and/or low pressures along the parting line. After each alignment, the process can quickly be repeated. The paper can be stored after use, to serve as a reference and check-up material.
Sensor Products Inc.
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