Cradle to Gate
Identity ID
27913e2f-3e8d-4133-9938-6da8d4c7f9ea
Materials
Associated ID
89942403-6d6f-4fe1-a8ef-d97d2c238e12
Included activities starts
Included activities ends
Description
The product represented by this dataset is titanium and titanium-alloy ingot, a densified titanium-based formed metal billet prepared from titanium sponge through a melting and casting process. This product has the core characteristics of low density and high specific strength; it forms a dense and stable oxide film in air and possesses excellent corrosion resistance. It has a relatively high melting point and good thermal stability, and some titanium alloys can still maintain excellent mechanical properties under high-temperature conditions. Titanium and titanium-alloy ingots are also non-magnetic and have relatively low thermal conductivity, as well as good biocompatibility. The upstream feedstock of this product is titanium sponge, and downstream it can be processed by forging, rolling, machining, and other operations into various titanium materials and titanium-alloy components, widely used in aerospace, high-end chemical corrosion protection, medical devices, marine engineering, and precision equipment manufacturing. It is a core fundamental forming material for the terminal applications of the titanium industry. The dataset includes the main raw and auxiliary materials, energy, and waste in the production process; infrastructure such as the manufacturing of production equipment and the construction of plants is not included within the dataset boundary. The data inventory is formed by merging data from multiple sources.
Activity Description
The production process comprises melting and casting. Titanium and titanium-alloy round ingots are produced by vacuum arc remelting, while titanium and titanium-alloy rectangular ingots are melted in an electron-beam cold-hearth furnace. The system covers the full process from titanium sponge to titanium and titanium-alloy ingots.
Process Description
Titanium and titanium alloy ingots have the outstanding characteristics of low density and high specific strength. At the same time, they can form a dense and stable oxide film in the air, thus showing excellent corrosion resistance. They have a high melting point and good thermal stability. Some alloys can still maintain good mechanical properties in high temperature environments. In addition, titanium is non-magnetic, has low thermal conductivity, and has good biocompatibility, which can meet the special needs of aerospace, chemical industry, medical and other fields.
Time period
2021
2026
Geography
China
Geography comment
Generated by merging multiple data sets in this geographical location.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
During the melting and casting process, titanium and titanium alloy round ingots are melted using vacuum consumable arc melting, while titanium and titanium alloy flat ingots are melted using an electron beam cold hearth melting furnace. The overall process flow is as follows: titanium sponge and clean scraps are mixed according to the process ratio through a weighing and mixing system as smelting raw materials. The raw materials are added to the smelting chamber and then evacuated. After the furnace body is preheated, the raw materials are fed into the molten pool through a vibrating feeder for melting. At the same time, they are sequentially scanned and heated by the electron beam gun. The initially melted titanium liquid flows into the refining molten pool, where high-density and low-density inclusions are separated from the titanium melt. The refined liquid titanium enters the crystal pulling crucible and solidifies at the set ingot pulling speed to form a rough ingot. The rough ingot is controlled to crystallize in the furnace and then taken out to obtain titanium and titanium alloy ingots.