How to choose a hinge? Points for purchasing hinges(3)

3. The bearing diameter is large and the wall plate has thickness. The quality of the plate hinge mainly depends on the quality of the bearing. The larger the bearing diameter, the better, and the thicker the wall, the better. Hold one piece of the hinge in your hand and let the other piece slide freely at a uniform speed and slowly.

4. Close and listen to the sound of the spring and loosen the hinge test cup. The hinge key is the function of a switch, so this is very important. The key is taken from the outer spring and inner spring of the hinge, as well as the rivet assembly. Listen to the sound of the hinge closing, whether it is crisp, if the closing sound is dull, it proves that the spring strength is not enough, and there is a problem with the thickness of the material; see if the hinge cup is loose, if there is looseness, it proves that the rivet is not tightly riveted and is easy to fall off. Close and close several times to see that the indentation in the cup is not obvious. If it is obvious, it proves that there is a problem with the thickness of the cup material and it is easy to "pop the cup".

5. Test the screw and adjust it forcefully. Use a screwdriver to adjust the upper and lower adjustment screws three to four times with a little force, and then remove the screws to see if the teeth of the hinge arm are damaged. Because the hinge arm is formed of iron material, it is not as hard as the screw, and it is easy to wear. In addition, if the precision is not enough during factory tapping, it is easy to cause slippage or unscrewing.