Cast Iron materials are cast from the following types of sand casting processes, with the most common listed first: Green Sand Casting. Precision Sand Casting. Lost Foam Casting.
There are two major types of iron produced: wrought iron and cast iron. Within those, cast iron includes its own family of metals.
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The mechanical properties of a material indicate how it responds under specific stresses, which helps to determine its suitability for different applications. Specifications are set by organizations such as the American Society for Testing and Materials so that users can purchase materials with confidence that they meet the requirements for their application. The most commonly used cast gray iron specification is ASTM A48. In order to qualify cast products according to their specifications, a standard practice is to cast a test bar along with the engineered castings. The ASTM tests are then applied to this test bar and the results are used to qualify the entire batch of castings. Specifications are also important when welding cast iron parts together. The weld must meet or exceed the mechanical properties of the material being welded togetherotherwise, fractures and failures can occur. A few common mechanical properties for cast iron include: 1. Hardness materials resistan...
The various properties of different types of cast iron results in each type being suited for specific applications.
The hardness properties of cast iron demand careful selection of machine tool materials. Coated carbides are effective in production machining environments, but newer materials are being developed continuously as technology improves. Surface finishing of cast iron products varies greatly according to the use. A few common applications: 1. Electroplating 2. Hot dipping 3. Thermal spraying 4. Diffusion coating 5. Conversion coating 6. Porcelain enameling 7. Liquid organic coating 8. Dry powder organic coating
From its early use over 3,000 years ago, iron has remained an integral part of human society. Iron production has come a long way since the centuries of working iron by blacksmiths to the invention of cast iron in the industrial age. Since then, wrought iron has become largely obsolete except for decorative uses. Contrastingly, cast iron is still progressing in terms of composition, microstructure, and mechanical propertintinuing to make its mark in the modern world. For more information on metal castings, or to request a quote for a custom metal project, please contact us.
Lost foam casting. Lost foam casting is another casting technique for iron castings. It is a type of evaporative pattern casting process that is like investment casting. But replace the wax with foam for the pattern. The advantage of lost foam casting is that the boiling point of foam is low.
During metal casting, molten metal is transferred from a crucible into a mold to create a positive metal cast object. The metal and mold are cooled, and the metal object is removed and finished. Traditional metal casting techniques include lost wax casting, plaster mold casting, die casting, and sand casting, to name a few.