1.Hot mechanical damage, hot chemical erosion and misoperation are the main three reasons for the damage of slide gate plate;

2.Use alumina zirconium carbon slide gate plate, ensure slide gate plate has good erosion resistance and thermal shock resistance; use slide gate and mechanism with reasonable design and even stress distribution, the service life of slide gate plate can be effectively improved;

3.Follow the standard operation procedure during the tapping of molten steel; right and good maintenance of refractory material slide gate plate can also improve the service life of slide gate plate.