Car fisheye terminal plating adhesion

Car fisheye terminal adhesion detection is the basic test item of electroplating. Poor adhesion is also one of the most common undesirable phenomena in electroplating. There are two detection methods: 1. Bending method: first use the same thickness as the required car fisheye terminal Place the copper sheet at the place to be bent. Use flat-nose pliers to bend the sample to 180 degrees. Use a microscope to observe whether there is peeling or peeling of the coating on the curved surface. 2. Tape method: Use 3M tape to firmly paste on the sample to be tested On the surface, vertical 90 degrees, quickly tear off the tape, and observe that there is a peeling metal film on the tape. If the visual observation is not clear, you can use a 10 times microscope to observe. 3. The result is judged: 1) No metal powder falling or being stuck by tape 2) No metal coating peeling off 3) The substrate is not When broken, there should be no serious cracking and peeling after bending. 4) No blistering phenomenon. 5) When the substrate is not broken, there should be no exposed underlying metal. We use computer-aided equipment to edit the curve. Mirror surface electric discharge machining, and the surface requires polishing Ra0.40, and the arc of the car fisheye terminal surface is very uniform. It will not scratch the PCB board. It is very beneficial to the use of stamping parts. Precise contact information: Precise wishes everyone a prosperous business and all the best. If you want to learn more, you can scan the following QR code and follow the official account. , Committed to the world's most professional precision stamping processing plant for electronic parts