High-frequency machine equipment, high frequency machine equipment manufacturers, Qingdao Tianrun High Frequency (certified merchants) are provided by Run High Frequency Electric Co., Ltd. Qingdao days. High-frequency machine equipment, high frequency machine equipment manufacturers, Qingdao Tianrun High Frequency (certified merchants) is High Frequency Electric Co., Ltd. Qingdao Tianrun (www.gaozhoubo.com.cn) this year launched a new upgrade, above pictures for reference only, please Dial telephone or pictures on this page, for the latest information, contact: Yan Lidong. Analysis of the stress state analysis showed a high frequency machine stress state, the pressure on the edge of the mold blank value σs ln (r + h) / r. Reached when r / h values ??α1 and yield stress value σs phase and on values. Thus, the blank in the curved section of the tensile resistance is significantly weaker. In contrast effects are caused by hardening due to the bending of these segments, its more hardened flat segment generated quickly. According to r / h value, is one of the dominant factors. Before carrying capacity of the blank segment determines the punch and the die should be a minimum allowable radius Rmin starting from the following conditions, i.e. not in contact with the mold segments into the plastic blank in a stretched state to be subjected to contact pressure disappears. The resulting value Rmin more general bent nearly 50% larger Shandong frequency machine equipment, the low-carbon steel, Rmin value does not exceed the value of the material thickness. The inclined wall in the test sample limit angle of nearly 45 °, the results of this can be confirmed by a test pressing profiles. Principle of high frequency induction heating of induction heating is induced current (eddy current loss in a conductor generates a high frequency magnetic field, and a conductor loss due to the hysteresis effect of the magnetic field conductor is self-heating to perform heating constituting the induction heating system of induction heating system consists of a high-frequency power (frequency generator), wires, transformers, inductors composition of its work steps:. ① from the ordinary high-frequency power supply (220v / 50hz) into high-pressure high-frequency low-current output frequency machine equipment Qingdao , (according to high and low frequency heating object, depending on which package materials, the general frequency should be about 480kHZ.) ② through the transformer high-voltage, high-frequency low current into a low-pressure and high-frequency. ③ by low pressure sensor After the high-frequency induction around the formation of a strong high-frequency magnetic field. Generally the larger the current higher the magnetic field strength.