Inspection equipment advanced, complete, equipped with 200 tons of tensile tester and other inspection equipment more than 30 sets, so as to ensure the quality of products, over the years by the user and the power department of a sand casting praise. Hot dip galvanizing is a method of obtaining a metal coating by immersing a steel piece in molten zinc. Hot dip galvanizing, dense coating, no organic matter; Because of its electrochemical properties, zinc has a "sacrificial" protective effect on the steel base. However, its corrosive products in the atmosphere (alkaline zinc carbonate) are dense, well attached, insoluble in water, and have a certain protective effect on the zinc layer in foundry castings. Therefore, hot dip galvanizing is widely used to protect steel products and parts from atmospheric corrosion, especially for mass production of standard parts and fasteners. Good hot dip galvanizing operation, should be each process is under strict control, give full play to its role. And if the previous process is not properly operated, it will cause the chain reaction of the subsequent process, and the operation cost will increase substantially or cause the galvanized products (missing plating, dezinc, dezinc poor, etc.) to be bad, reduce the value of the goods. If the above problems can be better controlled through technical research and process improvement, the quality of products will be greatly improved, and the operation equipment technology of unmanned and less manned mine will be more and more favored by people. In order to achieve the great extent of mine automation, the enterprise needs to solve the complete sets of equipment and automation control technology of fully mechanized working face, a set of advanced automation system: the fully mechanized coal face by automatic control technology, sensor technology, computer technology and the equipment status inspection and fault diagnosis technology, electro-hydraulic control technology, linear control, centralized control technology of electromechanical a casting factory body fully mechanized automation technology.