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<p>This contribution describes the development of a&#xa0;new type of Vacuum Arc Cold Hearth Skull Melting &amp; Casting (VA CH SM) process and design concept which is based on the well-established Skull Melting &amp; Casting process and industrially proven cold hearth technologies. Driven by the current challenges on the titanium and raw materials market and in line with the global target of reducing carbon emissions and primary raw materials consumption, the trend for titanium producers to increase the recycling rates in their production processes is on the rise. Following this demand of the industry, INTECO has developed a&#xa0;new plant design concept which allows the semi-continuous feeding of scrap (e.g. compacted chips) or other raw material (e.g. Master alloys, Titanium sponge) into the melting and casting process without breaking the vacuum between the melting and casting cycles. Two different casting techniques (static and dynamic casting) can be applied, allowing highest flexibility in production. With this new concept, recycling rates of up to 100% can be achieved as the process is able to produce its own melting electrode out of scrap, thus providing its own melting feedstock. The new INTECO VA CH SM plant, which was developed with one of the leading titanium producers, is already in full production mode, and the first insights and promising results are described. An outlook and extended functionality of the new VA CH SM design is presented as well.</p>

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Development of a New Type of Vacuum Arc Cold Hearth Skull Melting Furnace & Process

  • 期刊论文

  • 发表日期：

    2025年1月16日

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  • U. Haissl,
  • A. Scheriau,
  • H. Korbel,
  • H. Holzgruber

摘要

This contribution describes the development of a new type of Vacuum Arc Cold Hearth Skull Melting & Casting (VA CH SM) process and design concept which is based on the well-established Skull Melting & Casting process and industrially proven cold hearth technologies. Driven by the current challenges on the titanium and raw materials market and in line with the global target of reducing carbon emissions and primary raw materials consumption, the trend for titanium producers to increase the recycling rates in their production processes is on the rise. Following this demand of the industry, INTECO has developed a new plant design concept which allows the semi-continuous feeding of scrap (e.g. compacted chips) or other raw material (e.g. Master alloys, Titanium sponge) into the melting and casting process without breaking the vacuum between the melting and casting cycles. Two different casting techniques (static and dynamic casting) can be applied, allowing highest flexibility in production. With this new concept, recycling rates of up to 100% can be achieved as the process is able to produce its own melting electrode out of scrap, thus providing its own melting feedstock. The new INTECO VA CH SM plant, which was developed with one of the leading titanium producers, is already in full production mode, and the first insights and promising results are described. An outlook and extended functionality of the new VA CH SM design is presented as well.