Product category:
Electrical and Electronic Testing
News Release from: Kistler Instruments | Subject: Indirect pressure monitoring technique
Edited by the Manufacturingtalk Editorial
Team on 06 November 2006
Indirect pressure monitoring technique
avoids mark
Kistler has solved the problem of measuring mould cavity pressure without leaving surface marks on the finished product.
Kistler has solved the problem of measuring mould cavity pressure without leaving surface marks on the finished product by measuring the strain on the mould induced by the mould pressure, rather than directly using a sensor on the interior face of the cavity As the sensors are placed behind the wall of the cavity in the mould or die, the interior of the cavity is left smooth
This article was originally published on Manufacturingtalk on 27 May 2004 at 8.00am (UK)
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An added benefit is that the sensors do not influence the temperature field at the mould surface so eliminating another possible cause of surface imperfection.
Although it is recognised that monitoring and control of cavity pressure during the moulding cycle is essential to minimising defects, this has been impossible in the past when surface marks on the moulded part could not be accepted.
The introduction of the new Kistler indirect pressure monitoring technique now allows precision moulded parts, such as lenses, light guides and automotive mouldings with Class A finishes, to be produced more reliably using mould pressure monitoring without surface marking.
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