No corresponding sensor signal, the control unit will not work necessary to send a signal to the actuator. Programming of the control system by means of a control signal is generated, the program contains information on the value of various components weighing main extrusion punch pin, these components are kneaded by such compound formulations and devices operating state regulations. Control systems work programs on punch cards punched recorded for access or use the plug in manipulating the stage grouping. Luoyang rain Han mold manufacturing extrusion tooling, Ltd. specializes in the development, design, manufacturing price squeeze piercing needle, has for more than twenty well-known domestic enterprises to provide a variety of tools and molds, extrusion cylinder, lined, cast rolls and other products, and first-class service, first-class quality has made the user's praise. It is frequent contact with the hot metal extrusion punch pin picture, the cavity surface temperature can be as high as 400 ~ 600 ℃. Therefore it must have a high tempering stability extrusion punch pin to still maintain a high strength and toughness at work. It is repeated by alternately heating and cooling effect of hot metal coolant at work, can easily cause cracking phenomenon, the so-called thermal fatigue. So it must have the ability to thermal fatigue. Extrusion piercing needle Quote | Luoyang rain Han mold (certified) | piercing needle provided Sichuan extrusion manufactured by Luoyang rain Han mold Limited. Luoyang rain Han Tool & Die Manufacturing Co., Ltd. (www.yhgmj.com/) is Luoyang, casting mold leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Luoyang rain Han tooling leadership with the staff warmly welcome all inquiries negotiations to create Luoyang rain Han mold a better future.