What kind of thermometer mould jacket

The right temperature is the assurance of mould can produce qualified products. For injection mold, if the mold temperature is too low, injection molded parts is not easy to play the full shape, if the mold temperature is too high, injection molding products will appear burr, plastic shrinkage will increase, the product surface will appear shrink mark. High temperature also can appear the phenomenon. In order to improve the quality of products, so the mould leave the thermometer, the mould which thermometer jacket? Instrument answer: first, of course, is the surface thermometer, the use of surface thermometer, can perfect temperature control, to help achieve mold temperature requirements. It is directly measured surface contact thermometer mold surface temperature, the method is simple, and can obtain readings. Surface thermometer is to rely on the principle of the double metal heat bilges cold shrink principle of sensors to work, by contact spring or magnet at the bottom of the thermometer to measure the metal surface and reading. This type of double metal surface thermometer can range from - 40 c to 400 c, the precision can be in for some using occasions for accuracy is not high, can yet be regarded as a money and cheap thermometer of beauty. ST200DM surface thermometer ST221SM surface thermometer surface thermometer use note: cannot adsorption on the stainless steel material, it will determine the surface temperature measurement of accurate or not. In addition, when using, pay attention to clean up and check, regularly test the measured values.