UL is Underwriters Laboratories (Underwriter Laboratories Inc.) shorthand. UL certification is through terminals Terminals UL safety test, the portion of the terminal through the UL safety test of America's most authoritative, but also in security testing and identification of large private institutions in the world. It is an independent, non-profit, do testing for public safety professional organizations. To study to determine the extent of the various materials, devices, products, equipment, construction of life, property and whether the harm it uses scientific testing methods. Molds, at least in the connector industry in almost all the important parts are achieved through a die at high efficiency, good accuracy, easy maintenance, the main surface of the main terminals in plastic molding and metal die-based, plastic mold: the main is to design, first select the product parting plane is important terminals, he decided to design the structure of the mold itself, there are side core pulling (more may be four) into the plastic mouth and direction of design, die second cooling system is also a very important one, as some structural design will be affected by the type of plastic material, evenness of the mold insulating housing structure, front and rear mold mold insert on the insert to avoid the phenomenon, as a product design engineer If you only consider product features and standards can lead to the appearance of the phenomenon of normal production and mold, mold manufacturing process to take into account, in addition to the injection molding machine is the forming process, the impact of this is very important: injection molding temperature, molding time Terminals equipment, clamping force, injection speed. Problems insertion force, and in this regard it relates to the content more terminal blocks, which have a relationship with the material, plating, construction and industry applications, the connector industry is an important mechanical performance requirements, pluggable terminals, especially, the choice of materials to plug the power is limited by the terms of conductivity (current) and the contact resistance and temperature rise. Here is not to do a detailed description of the plating is mainly affected by the type of coating and whether pre-plated terminals affect production, in general, in the same material and structure after pre-plating tablet than the first punch and then plated In terms of tablet insertion force to stabilize, because after plating the process is invisible to do a hardened metal material, and just prior to pressing to eliminate this phenomenon. Terminal Equipment | Terminal | Song Chong-wook electronic products factory by the Dongguan Shijie Xu Chong-electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) strong, credible, connectors, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xu Song Chong electronic products factory into the brilliant and you work for a better future!