- Mar 09, 2017 -
Observation of the various electrical switches will be found, the switch of the two contacts, there must be a spring with a spring to ensure that the two close contact, is a good conduction. If the contact is not good, the resistance at the contact becomes larger, the heat generated by the current becomes larger, and when it is serious, it is the metal melting at the contact. The two metal posts of the bayonet lamp are both spring and spring for good contact. As for the central metal sheet of the screw cap and all the plugs of the socket are reed, the function is to keep the two sides in close contact With good. When the tape, there is a phosphor bronze reed, the use of its bending deformation caused by the elastic force so that the magnetic head and tape in close contact. In the stapler there is a long coil spring its role on the one hand is the top of the staple, on the other hand is when the front of the nail was launched, you can send the back of the nail to the front to provide a comfortable push, In this way, you can automatically push a nail to the front, until the nail all launched so far. Many machines automatically feed, automatic rifles in the bullet automatically loaded by the spring of this function. In addition, clip-like clothes, ball-point pen, pen clip on the use of the clip is the use of spring pressure on the clothes folder.