The anode steel claw plays a conductive role in connecting the upper and lower parts of the aluminum electrolysis cell's anode. Regardless of the number of legs or their arrangement, the current material used for steel claws is ordinary cast steel. Manufacturers producing anode cast steel claws for the electrolytic aluminum industry possess advanced full production lines for anode cast steel claws, complete physical and chemical measurement facilities, rapid analysis laboratories for furnace front operations, and a full range of testing equipment and methods. The use of electric arc furnaces (or medium-frequency furnaces) combined with rare earth refining ensures that the gas and impurity content in the molten steel is minimized, resulting in better conductivity and lower resistivity.

By adopting the advanced dry sand real mold vacuum (lost foam) casting process, using large-tonnage self-controlled reverberatory furnaces for artificial aging treatment, and employing car-type shot blasting machines for surface treatment, the products can fully reveal a metallic luster. Particularly, the usable parts of the steel claws require no additional cleaning and can be used directly, saving users time, effort, and costs.

Machining is performed using machine tools. With the use of triple milling head double-sided combination milling machines, four milling head four-meter gantry milling machines, and other machining equipment, strict compliance with drawing requirements can be achieved, ensuring high processing efficiency and quality. This has earned the trust and praise of users.

Lost Foam Casting Process Flow - White Mold

Assemble the prepared or purchased white molds according to the casting requirements, using cold glue or hot melt adhesive for bonding. Fill gaps with lost foam repair paste, apply coating, and dry. During this process, attention must be paid to details such as the density of the white mold, the application method of the glue, the usage of repair paste, the quality of the coating and its suitability for the casting, as well as the temperature and humidity of the drying room.

(2) Technical Requirements:

1. Material according to user needs.

2. Smooth surface, dense internal structure, free from defects such as sand holes, slag inclusions, cracks, pores, shrinkage porosity, etc.

3. Steel claw dimensions produced according to drawings provided by the requester.

(3) Standards Adopted: 

1. GB/T11352-1989 Cast Carbon Steel for General Engineering Purposes

2. GB/T5613-1995 Designation Method for Cast Steel Grades

3. GB/T6414-1999 Dimensional Tolerances and Machining Allowances for Castings