1, the overall integral tunnel tunnel pickling line treatment tank were all closed as a whole, unified ventilation and exhaust mist, the tunnel was slightly negative. Overall end of the tunnel Tunnel pickling line production operations and control system is relatively simple, reliable equipment operation, maintenance tunnel structure only when open, in order to facilitate production management. But the enclosed volume is large, so the mist extraction system capacity is relatively large. This arrangement of the unit there are two kinds: (1) operating line for the ring closed form, manipulator and coil handling throughout the pickling line is not decoupled. This form of simple production operations, demanding control of the entire pickling line; but more work online robot (eg annual processing capacity of 100,000 t of pickling line about 16), and therefore a relatively large investment in equipment Dongguan stainless steel bar, high elevation plants (H = 12m). Under the control level is not high in the case of stainless steel wire rope, recommended this arrangement form. (2) The operating line is a straight line in the form of an open stainless steel coil handling robot and decoupling. This form of control is more complex manufacturing operations and some of the former, but the number of jobs online mechanical hand can significantly reduce (eg annual processing capacity of 100,000 t of pickling line about 4), covers and mist extraction systems a corresponding reduction in lower investment in equipment, plant low elevation (H <12m). Therefore, in the case of the control level to meet the requirements of Wan Jiang stainless steel bar, recommended this arrangement form. 1, through the induction of alternating magnetic field produces eddy currents in the interior of the workpiece, the current distribution in the cross section of the workpiece is no longer uniform, the current focus on the surface, called the skin effect. Due to the skin effect, from the surface to the core wire induced current gradually decreases, inadequate heating wire core, its temperature rises slowly than the surface, must fully consider the frequency induction heating, the heating time, a reasonable average temperature and average temperature measures the time in order to achieve consistent core surface temperature. 2, the structure of a small induction furnace air rate cut means that good electromagnetic coupling, but the wire is moved in the guiding device, it must have sufficient clearance so that the wire will not generate grazing the inner wall of the short circuit coil brass. Wires and sensors to maintain good concentricity. Length higher efficiency and compact sensor. Especially for heating non-magnetic steel wire, the length of the sensor should be at least five times the inner diameter. 3, frequency selective induction heating wires are penetrating heat, select the frequency of the main consideration two factors: the temperature uniformity of heating induction heating efficiency and wire section. Penetration reasonable relationship between the two parameters depth δ circuits and wire diameter D, wire induction heating for 6> δ / D> 3. Two phases. Stainless steel wire _ _ Shengyuan Stainless provided by Dongguan Shengyuan stainless steel. Shengyuan Stainless Steel Co., Ltd. of Dongguan City (dg-shengyuan.cn) strong, credible, in Dongguan, Guangdong metal packaging machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Shengyuan innovative ideas will lead you hand into the brilliant stainless steel and a better future!