Aluminum Titanium Boron Lanthanum Cerium Alloy

Basic Info.

Product Description

Al Ti B alloy and its preparation method and process

Titanium and its alloys are widely used in the fields of aviation, aerospace, shipbuilding, automobile, chemical industry and medicine because of their low density, high specific strength, strong corrosion resistance and non-toxic. Due to the unique processing characteristics of titanium products, the finished product rate in the process of production and processing is generally about 50%, and a large number of titanium chips will be produced in the mechanical processing, so it is necessary to recycle the titanium chips. At present, the titanium chip recovery mainly adopts special titanium chip recovery equipment or based on the existing equipment to recover the titanium chip. The former equipment cost high, low utilization; Due to the small density and poor compactness of the titanium chip electrode, the latter reaction is unstable in the vacuum melting process, causing damage to the equipment and easy to occur danger.

As an effective grain refiner for aluminum and aluminum alloys, Al-Ti-B alloy is widely used in production. The preparation of Al Ti B alloy is mainly fluorinated salt reaction method, melt element mixing method, self-propagating high temperature synthesis method and so on. Aluminum-titanium-boron alloy was prepared by fluorinated salt reaction by adding a certain proportion of potassium fluotitanate and potassium fluborate into the molten aluminum melt. The aluminum-titanium-boron alloy produced by this method has low price and strong refining effect, and is widely used in industrial production. However, titanium and boron in the fluorine-salt reaction are derived from fluorine-containing compounds, so a large number of fluorine-containing compounds need to be used as raw materials, resulting in the release of a large number of fluoride soot in the preparation process, which not only pollutes the environment but also has a certain impact on health. In addition, the fluoride produced corrodes the furnace lining to a certain extent and is included in the aluminum-titanium-boron alloy, which deteriorates the performance of the alloy. Aluminum-titanium-boron alloy is prepared by melt element mixing method by reacting the alkali metals of sponge titanium and boron with aluminum melt. This method can reduce the amount of granular raw materials, the volatilization of fluorine salts and the decrease of melt temperature, but there are more borides in the prepared alloy, less effective particles tib2, the refining effect is not ideal and the cost is high. The self-propagating high-temperature synthesis method is to make aluminum-Ti-boron alloy by adding the elemental powder press block of aluminum, titanium and boron into the aluminum melt. The purity of the alloy obtained by this method is high, but it is not easy to be used in the actual production because the reaction temperature is not easy to control and the price of raw materials is expensive.