In order to reduce production costs, some companies use metal packers in steelmaking plants. They require to increase the output value of metal packers and speed up the production pace. The oil temperature in the oil tank of the packers has increased significantly, sometimes reaching about 72 ℃, which makes production unsatisfied. In view of the problem that the oil temperature of the hydraulic system of the metal packer is too high, this technical problem has been solved by looking up relevant technical data, digesting the operating principle of the imported equipment, investigating and studying.
