Car-resistance furnace structure: lining all-fiber structure, relatively brick hearth saving about 60 percent, using high-quality raw materials for long-fiber blanket thorn RQ3 series Pit carburizing Industrial resistance furnace, the furnace according to the size of a large plate made of the use of special equipment specifications, and to leave a certain amount of compression in the process, to ensure that the module after the masonry is completed, each ceramic fiber block expansion in different directions, so that no gap between the modules mutually extruded whole, to achieve good heat storage effect and facilitate the rapid construction of the product, can be fixed directly to the furnace shell stainless steel anchor nailed round. Compared to the advantages of low thermal conductivity, low heat capacity, excellent corrosion resistance, excellent thermal stability and thermal shock resistance, thermal insulation, and the anchoring member disposed in the furnace cold, improves the high temperature strength of the fibers and other products. Our country in recent years have made the project implementation process modeling requirements, such as Sanming steel, bearing steel, but due to various reasons, were not implemented. Very few have been modeled furnace operation is not stable due to Pit carburizing furnace parts supply, as well as the level of automation of the entire plant can not keep up, but did not meet the requirements of the design before. The vast majority of domestic steel rolling industrial furnaces still using the traditional cross limiting regulator for continuous control of the furnace temperature. Few large furnace and a lot of heat treatment furnace, especially high calorific value gas furnaces and heat treatment furnaces have adopted impulse control, and achieved good results. The current industrial furnace Pit carburizing furnace automation and control systems, especially large reheating furnace basically uses two layers of control. The first layer is the operating level, the use of at least two PC. The second layer is a control layer, the use of at least two sets of field control station. Although such a large furnace large pit carburizing furnace automation system manufacturers, but the configuration of the system, including the quality of field instruments are still quite different. Requirements for machinery, forging industry, small stove system is not high, but each automation system configuration difference is too big. RQ3 series Pit carburizing Industrial resistance furnace, Longkou laboratory furnace, pit carburizing furnace provided by Longkou Furnace experiment. Longkou experiment Furnace (www.lk-dianlu.com) is a leader in Yantai, Shandong Province, electric equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Longkou laboratory furnace leadership with the staff warmly welcome all inquiries negotiations to create experimental furnace Longkou a better future.