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Overview

Exceptional Casting. Undeniable Results.

Investment casting services are used in the manufacture of extremely complex parts that use specialized alloys or need a lot of machining, and/or which cannot be produced by traditional methods.

AmTech OEM is a premier provider of investment casting services, renowned for crafting precision components across various industries. Our investment casting process, also known as lost wax casting, is a time-honored technique that facilitates the production of complex, detailed parts from a wide array of alloys. This method yields near-net-shaped metal parts that often require little to no secondary machining, thus ensuring cost-effectiveness without compromising on the intricacy of design.

AmTech adheres to stringent industry standards, holding ISO , IATF, and QS certifications that testify to our commitment to quality and consistency. Our process is fine-tuned to deliver components with exceptional surface finishes and tight dimensional tolerances, catering to sectors that demand high levels of precision such as automotive, energy, and medical devices.

By leveraging a robust supply chain, AmTech ensures reliable and timely delivery of investment cast parts. Our expertise extends to managing large-volume orders with efficiency, underlining our role as a pivotal supplier in the global market. With a focus on innovation, reliability, and customer satisfaction, businesses continue to trust AmTech for their investment casting needs.

How to Improve the Hardness of Gray Cast Iron?

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As an OEM Castings Supplier, share with you.

Grey Cast Iron Casting

1. Charge ratio: The method of charge ratio is pig iron + scrap steel + recharge material + recarburizer, and the nitrogen in the recarburizer is used to change the shape and length of graphite to increase the hardness of gray iron castings.

2. Control of chemical composition (1) Many smelting companies believe that sulfur is harmful. The lower the content of sulfur in molten iron, the better. In fact, this is not the case. 'Silicon carbide' and 'manganese-sulfur ratio' should be considered in gray iron castings. . That is, Mn=1.71S+(0.2~0.5). HT250 chemical composition table: CPSiMnTiS3~3.3'0.121.65~2.050.7~1.1'0.05'0.12 (2) For low alloying, one or two alloying elements should be added. When adding, the content of carbon element should be considered and not blindly pursued hardness.

3. Overheating of molten iron For gray iron castings, increasing the temperature of molten iron within a certain range can refine the graphite, make the matrix denser, and increase the tensile strength and Brinell hardness of the cast iron. The overheating temperature of molten iron should be controlled at '', and the overheating time should be controlled within 10min.

4. Inoculant and inoculation method The inoculation treatment of gray cast iron is usually to slowly add an inoculant (the most commonly used 75Si-Fe) in the molten iron after inoculation. The hardness of the gray cast iron after inoculation treatment will tend to be uniform, which improves the machine The processing performance also increases the strength of gray cast iron. The hardness of gray iron castings is between HB170'240.

Our company also has Grey Cast Iron Casting on sale, welcome to contact us.

For more information, please visit oem grey iron parts cast factory.