| 摘要 |
<p>This invention relates to an integral heated probe for an injection molding system. The hoop has an insulation and locating hoop portion which bridges an insulative air space and abuts against a circumferential shoulder to accurately locate the probe in a well in the cavity plate. The hoop portion encloses a number of adjacent insulative air chambers which extend circumferentially in the steel body. The hoop portion is brazed in place in a vacuum furnace to be an integral part of the probe. Thus, it provides additional hoop or bursting strength and the air chambers reduce the heat loss through the hoop portion to the cooled cavity plate.</p> |
