1. Test requirement

The maximum thermal resistance of the water-cooled substrate is 7 ° C / kw.

2. Test methods

Apply a small amount of thermally conductive silicone grease on the hot and cold surface of the test piece, place it in the middle of the hot and cold surface of the thermal conductivity tester and press the test piece. Pull the temperature probe out of the measuring plate, insert it into the temperature measuring hole of the mold, and apply a small amount of thermally conductive silicone grease. Input the relevant parameters in the thermal conductivity 2019-3-3 4 coefficient tester, and the instrument automatically measures and generates the result, and calculate the thermal resistance Rth. The rated flow rate of the coolant is Qvn = 25 L/min.

Install the test piece on the flow resistance test bench, the flow rate of the coolant is from 15 L/min to 45 L/min, and the measurement interval is 10 L/min, measure the flow resistance of the water-cooled substrate corresponding to each flow state and record test data.