The phenomenon of black marks reflects the bottleneck in the billet heating process. To reduce the black mark and improve the billet temperature uniformity, the actual production is usually solved by prolonging the soaking time. Therefore, the production efficiency of the heating furnace is limited and the heating furnace is full. The impact is particularly severe when load production and production are fast. First of all, using materials with excellent high temperature performance, according to the different working temperatures in each section of the furnace, CrNWi alloy material is used in the high temperature section, CrNiRe alloy is used in the middle temperature section, and CrNi alloy is used in the low temperature section. The slider still uses a simple and reliable welding installation process. The height of the slider is increased from the original 76mm to 120mm, and a number of holes (1) with different diameters are arranged on the slider. The arrangement of the holes significantly reduces the area of ​​the heat transfer passage from the top of the slide to the bottom, while the high temperature furnace gas circulating in the holes greatly increases the temperature of the upper part of the slide. In this way, the top of the slider is close to the ambient temperature of the furnace gas, and the maximum temperature is approximately 1150 to 1200, which greatly reduces the temperature difference between the slider and the billet. Shortened by 60%, greatly improved the heating of these parts, making it a schematic diagram of the placement of landslides in the furnace. Secondly, in the arrangement of the installation location, the method of offset staggering was adopted, and the distance between the sliders was increased and the area alternately transformed was adjusted. , The contact part with the billet travel, leaving the slider, outside the hanging state and get heated, the same area and the slider contact time has been a good increase. Both sides of the slider covered with refractories play a crucial role in ensuring the slider effect and its service life. As can be seen from the figure, as the height of the slider increases, the angle of the packing material increases, so that the peeled iron oxide skin does not easily accumulate, and the unfavorable shielding effect is overcome to the utmost, directly improving the heating conditions of the lower surface of the billet and the vicinity of the slide rail. . Conclusion After the hole-type hot-slide rail technology is put into use, it shows excellent performance. It is based on the high-heat-resistant alloy material technology, and reasonably uses related technological means to specifically solve the heating of the contact area between the lower surface of the billet and the water-cooled area. Poor conditions and large heat loss due to cooling have increased production capacity and heating quality, providing good conditions for rolling mill operation. And the technical product is stable and reliable, the investment recovery period is short, and it has a very good promotion significance on the push steel heating furnace. NCB high viscosity liquid Internal gear pump Ncb High Viscosity Liquid Internal Gear Pump,Liquid Gear Pump,Internal Gear Pumps,Liquid Internal Gear Pump Bucher Hengshui Yuanhan Trading Co.,Ltd , https://www.hengshuiyuanhanpump.com