Precision casting material
The metal materials of precision casting enterprises mainly come from purchased materials, waste castings and pouring risers of the company. The purchased metal materials are often in bulk, and they are rarely pressed into a cylindrical shape. Materials of different materials are easily confused. For example, 316 materials are mixed with 304 or 430 materials. Therefore, precision casting companies should choose to purchase materials that are pressed into a cylindrical shape. The chemical composition of each batch of purchased materials was analyzed using a spectrum analyzer. If possible, the supplier should conduct a site visit to evaluate whether the materials are labeled, protected, and isolated.
For the scrap steel (waste castings, pouring risers) of the enterprise, it is necessary to remove rust, remove oil, clean sand and clean and dry, and control the S and P components. Moreover, the scrap of different materials should be marked, protected, and stored separately, and should not be confused.
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