Guangdong Zhonglian Precision is a manufacturer that integrates the research and development, production, and sales of various USB connectors, and can produce various types of USB connectors. Below, the editor will delve into the production line of the company and reveal the production process of various connectors for you.
There are various types of USB connectors, including entry-level ones, but the manufacturing process is basically the same, generally divided into the following four processes: stamping, electroplating, injection molding, assembly, testing, and testing for storage
1. Stamping
This part includes the stamping of the shell and the stamping of the USB terminal. The terminal is the core component of the USB connector and the part that contacts the USB male or female socket. The quality of the terminal material directly affects the performance parameters of the finished product. Our company's products are generally made of high-quality phosphor copper, and the Type-C connectors used on smartphones are usually made of phosphor bronze or high conductivity copper. The terminals of USB connectors are usually stamped from thin copper strips. One end of the large copper strip is fed into the front end of the high-speed stamping machine, and the other end passes through the hydraulic worktable of the stamping machine and wraps around the winding wheel. The copper strip is pulled out by the winding wheel and rolled up to be stamped into the finished product.
2. Electroplating
After the terminal stamping is completed, the electroplating section is carried out. In the electroplating stage, various metal coatings will be applied to the terminal contact surfaces or shells of various connectors according to the type and purpose of the product. For example, in order to improve the solderability of the terminals, they can be coated with a solder layer; In order to improve the conductivity of the USB connector, gold or other materials are plated on top of the terminals; To improve the corrosion resistance of the USB interface, we can coat it with nickel layers of different thicknesses.
3、 usb连接器的胶芯注塑
usb连接器的胶芯注塑是将高温熔化的PBT或LCP塑料注入金属胎膜中,然后快速冷却成形的过程。这一过程中会出现熔化的胶芯塑料未能完全注满胎膜时的情况, 这是注塑阶段需要检测的一种典型缺陷。 另一些缺陷还包括接插孔的填满或部分堵塞（这些接插孔必须保持清洁畅通以便在最后组装时与插针正确接插）。
4. Assembly
The final process of USB connector manufacturing is assembly. The company employees use high-speed terminal assembly machines to continuously and quickly assemble the semi-finished products produced in the above processes into finished products.
5. Detect storage
Next, our quality control team will use various quality inspection systems to detect and control various possible defects that may occur during the four production processes mentioned above. Perform extreme testing and verification on their various performance indicators. Finally, packaging and storage are carried out.
Dear friends, have you learned about the production process of our USB connectors? Are you confident in our quality control? Nani?! There are still questions. Alright, the editor has been completely defeated by you. Come and visit our company for guidance.