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1.Installed abrasive paper (before installation, please put gloves, the fingers were not galled by sand) Get abrasive paper that length is 473 +-1mm and width is 400 mm at least. But those two items do not exceed roller, the average thickness is about 1.0 0.2 mm. Get three bars double-face tape that is equal to roller, the thickness is 0.2mm at most, the width is 50mm, add them on roller well-di...
1. Sample Preparing Every sample should be put in the environment with temperature 20~250℃ and humidity 20~70% for more than 4 hours. 2. Testing Procedure 2.1. Keep the sample shape and static without moving. 2.2. Remove the test part from the entire toy in order the Toy Safety Sharp Edge Tester can touch it, but must keep the original rigidity. 2.3. The beginning and end of the PTFE tape can be c...
1. Wash fastness tester instrument leaking ▲Check if the drain connector or drain valve is secure ▲Whether it is the connection of the heating pipe joint, the water level gauge, the rotating shaft, it is tightened or the gasket needs to be replaced. ▲Excessive water levels can also cause water leaks. 2.After installation, power on the work interface and click “Rotate”. The mot...
1. How can I elongate the use life of lamp? The use life of lamp is decided by actual use time and use time. For example, in case user need to use lamp for long time and power on and off lamp and switch functions in a day for many times, the use life of lamp is reduced. When you want power on and off lamp cabinet for several times in an hour, don`t power off the lamp cabinet. Generally, powering o...
What is Electronic Twist Tester? Electronic Twist Tester is special equipment used to measure the yarn twist, degree of inhomogeneity of yarns in certain lengths of cotton, wool, linen, and silk, and the twisting and shrinkage of strands, as a basis for assessing product quality and improving the production process. The test method of Electronic Twist Tester? Average untwisting slip elongation Ave...
1. Lay out the composite specimen smooth in a flat bottomed dish and cover with the solution. Thoroughly wet one composite specimen in the alkaline solution at a liquor ratio of 50:1 and allow it to remain in the solution for 30 minutes. Press and move it from time to time to ensure good and uniform penetration of the liquor. 2. After this time interval pour off the solutions and wipe the excess l...