Titanium and titanium alloys have excellent properties such as low density, high specific strength, corrosion resistance, low linear expansion coefficient, and good biocompatibility, which are indispensable in aviation, aerospace, ocean transportation, chemical industry, metallurgy, medical and health industries. Structural materials.
Titanium and titanium alloys have high chemical activity in the molten state. It is very difficult to smelt and cast to form a chemical reaction with various commonly used refractory materials. It must have its own special molding materials and molding processes, as well as special melting and casting equipment. .
More than 90% of titanium smelting equipment in my country adopts vacuum consumable electrode arc condensing shell furnace.
The vacuum consumable electrode arc smelting method uses a consumable electrode made of titanium or titanium alloy as the cathode, and a water-cooled copper crucible as the anode; for high-current smelting, the melting speed of the titanium electrode is much higher than the condensation speed of titanium, and the melted The electrode enters the crucible in the form of droplets to form a molten pool; the surface of the molten pool is heated by the arc and is always in a liquid state, and the bottom and the surrounding area in contact with the crucible are forcibly cooled by circulating water, resulting in bottom-up crystallization. This method has the advantages of simple structure, low maintenance cost and easy enlargement. The disadvantage is that it is difficult to adjust and control the pouring temperature. After the arc is stopped, the molten metal must be poured out of the crucible within 3 to 5 seconds, otherwise the temperature will drop sharply. , the superheat of the molten metal is not high, which makes the liquid fluidity and feeding ability poor. Consumable electrode arc smelting has high requirements on the quality of the electrode, and requires dense internal structure of the electrode. The smelting process is very dangerous. A little careless operation will cause arc damage to the crucible, causing the circulating water forced to cool the outer wall of the crucible to enter the crucible, contaminating the titanium liquid, and the water vapor damaging the vacuum pump system.
With the improvement of people's living standards and the improvement of health quality requirements, titanium alloys are more and more used in the medical and health field due to their high fatigue strength and strong affinity with the human body. Such as: cast titanium alloy hip joint repair parts, knee joint repair parts, human prosthesis, oral repair and so on.
The titanium and titanium alloy bars and wires produced by JM-Titanium are strictly controlled from raw materials, and pay attention to every production link and processing details. rod) and other materials. In recent years, it has begun to take shape and has a wide range of popularity in China.
Contact us for more information. Thank you
Nicole
Company: Baoji Jimiyun Dynamic Co., Ltd
Cuntry:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 13369210920
Gmail:nicole@jmyunti.com
Website:www.jm-titanium.com
