Use protective casing is a good choice to extend the life of the bimetallic thermometer

For a man who often use the bimetallic thermometer, prolong the service life of the bimetallic thermometer is very important, not only can save costs, the most important is often in the trouble of the thermometer, can reduce so prolong the life of the thermometer has always been a issue for us. Bimetallic thermometer is used more widely in the industry, but because of its high cost, so regular maintenance is needed in daily use, in order to prolong the service life of bimetallic thermometer. In many industrial fields, bimetallic thermometer sometimes come into contact with a lot of easy to corrosion, easy to electrolytic liquid, workpiece chrome electroplating cell, for example, using titanium pipe as the maintenance of bimetallic thermometer, under the working temperature of 120 ℃, using three hours electrolyte corrosion of the bimetallic strip, the pointer thermometer, ignorant of temperature fluctuation can be difficult to stop the workpiece heat treatment of chromium plated appearance. Titanium is a kind of precious metal, not easy corrosion and electrochemical obvious reason for this is that not enough is the purity of titanium. But on the market to buy the tube with high purity titanium for maintenance of bimetallic temperature object, and the cost is too high. If on the titanium tube maintenance coat a both corrosion resistance and electrolytic maintenance tube not easily, use what material? Plastic pipe and pure iron or mild steel is undoubtedly the best choice. Plastic pipe corrosion resistance is strong, good insulation, light quality, price cheap, at 120 ℃ is better than that of pure iron or mild steel. The bimetallic thermometer outside diameter is 12 mm, is looking for plastic tube diameter is 12 mm. As 510 mm 500 mm long, plastic tubing blanking, then holds a head with hot molding machine of another head into the maintenance of tube. After the completion of the mercury thermometer in the constant temperature heating up in the sink and comparison, there are 10 seconds of thermal inertia, due to the plating temperature change is slow to stop. So, can neglect measurement temperature changes in the electrolytic cell produce thermal inertia. An indispensable part of maintenance is a thermometer in use process, it can improve accuracy, prolong life. These are small make up to introduce the methods on how to prolong the service life of the bimetal, hope in the later use to help you.