Currently, the production of titanium metal industry is to be Raul law, products of titanium sponge. Preparation is the traditional process of titanium sponge titanium by cast into ingots, and then processed titanium. Click the main steps to be made from titanium mining is the process:
Titanium -> Mining -> Beneficiation -> too concentrate -> enrichment -> Ti-rich material -> Chloride -> crude TiCl4-> Refined -> Pure TiCl4-> magnesium reduction -> titanium sponge -> Casting -> titanium ingots -> processing -> titanium or titanium parts if the above steps to get the rutile mining, enrichment is not necessary to go through, you can take direct chlorination of crude TiCI4. In addition, the casting operation should be a metallurgical process, but sometimes also included processes.
The above-described process refers to the process in terms of plastic working and casting. The plastic working method also includes forging, extruding, rolling, drawing and the like. It can be processed into a variety of sizes of titanium ingots cake timber, rings, plates, tubes, rods, profiles and other products, can also be made into various shapes casting parts, components.
Titanium and seamless titanium tube alloys have a large deformation resistance plastic processing; room temperature plasticity poor, yield strength and ultimate strength ratio is high, big rebound, notch sensitivity, deformation process easy and die bonding, heating time and easy adsorption of harmful gases and other characteristics, plastic working than steel, copper difficult.
Therefore, processing of titanium and titanium alloys thereof must consider these characteristics.
Titanium uses plastic processing, plus unlimited land size, but also to mass production, but a large amount of scrap lumber remnant low processing. Principles of titanium production process shown in Figure 1-1.
In response to these shortcomings medical titanium plastic processing, in recent years the development of titanium powder metallurgy process. Titanium powder metallurgy process and the same common powder metallurgy, the sintering must be carried out only under vacuum. It is suitable for the production of large quantities almost, small parts, especially for the production of complex parts. This method is almost no longer been processed, finished product rate, can make full use of titanium as raw material waste, and can reduce production costs, but can not produce large-size titanium member. Titanium powder metallurgy process: titanium powder (or titanium alloy powder) -> Screening -> Hybrid -> press forming -> Sintering -> Accessories -> titanium products.
titanium bars Production Process principles
In addition to titanium titanium, but the world has produced nearly 30 kinds of grades of titanium. The most widely used titanium alloy is Ti-6Al-4V, Ti-5Al-2.5Sn like. Our common titanium alloys and its components, as shown in Table 8-9.
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