Ladle sliding gate device, main product is installed in the bottom of the ladle, used to control the molten steel flow mechanism, a major part of the product (base, stents, slider, etc.) and high precision casting material is nodular cast iron castings, its work when installed in the bottom of the ladle, the ladle of molten steel temperature is higher, the following is in the middle of the molten steel temperature, working temperature at 500 degrees Celsius, it requires the casting high temperature resistance, resistance to creep. The main problem of the existing products of our company is that the creep resistance of ductile casting is poor. The casting is prone to bending, deformation and cracking at high temperature (about 500℃), which affects its service life and effect. At the present stage, the average life of the main material of this product is about 1200 furnace (how to cast a molten steel ladle for a furnace), the product life is short, frequent replacement of customers, high labor intensity, high accident rate. It is hoped that after technical transformation, the life of the main components of the product can be increased to about 2000 furnaces, so that the product is safer and more durable. Sell and install intelligent energy saving system, etc. At present, the company has a registered capital of 3 million yuan, the staff of 60 people, including 5 senior engineers, engineers, 3 people, and other various types of professionals more than 40 people, with Beijing runhua energy conservation and environmental protection science and technology research institute, Beijing university of science and technology, shandong university of science and technology of China and other scientific research institutions, to develop the energy conservation and environmental protection technologies such as flame cutting device, new billet won two patents of utility model, a patent for invention, compared with the traditional cutting device, the device has advanced technology, precision casting company concentrated flame, cutting speed, smooth section, the edge is not collapse edge, edge of less hang slag, high molding rate.