2 drilling heating pipe installation from the perspective of understanding of heat transfer, heat pipe installation To fit the mold surface as possible, in order to facilitate heat transfer heat pipe to the mold as soon as possible. In fact heating tube and the mold is not much contact area, the nature of heat transfer is radiation, conduction is secondary. Thus most of the heating tube surface for mounting the mold are coated with a coating of enhanced infrared radiation droplets angle meter made, but also limits the use of the design power (10 watts / cm) approach to increase the life of the heating tube. Therefore, when heating the processing hole, especially the long hole of the heating process is not necessary to design with the gap is too small, the design method is effective at both ends of the hole of the heating tube with tight fit, may be employed as filling, sealing or other measures designed to blank. This approach can effectively reduce the heat dissipation area and the radiant heat pipe losses. Heating plate insulation commonly used asbestos board or asbestos cloth insulation, but cotton is not easy to put a flat stone, there are definite impact on the platen parallelism guarantee. Many types of asbestos board, the most common is rubber asbestos, asbestos board, but this is not to be used for thermal insulation materials used in sealing contact angle measuring instrument touchscreen, a certain pressure level can win, but will be released at high temperatures out of a very unpleasant odor, affecting the operating environment and the health of the operator. Heating plate asbestos insulation board should adopt common specification is 1000 × 1000,3-5mm thick plate TP more regular contact angle measurement, parallelism better compressibility more evenly, no odors at high temperatures. TP contact angle measurement, contact angle, ShengDing instruments provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) strong, credible, in Dongguan, Guangdong specialized instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead ShengDing instrument and you hand into the brilliant, for a better future!