At present, my country's economy maintains rapid and healthy development, which provides a good market environment for the development of the domestic titanium industry. The rapid development of domestic titanium for the chemical industry, titanium for electric power, titanium for marine development, titanium for the automobile industry, titanium for biological engineering, etc., especially China’s newly launched large aircraft plan has greatly stimulated the demand for titanium in the domestic market. Both have become the main driving force for the development of the domestic titanium industry. This is not only a huge development opportunity for domestic titanium alloy manufacturers but also a severe challenge to the domestic titanium alloy industry. This requires titanium alloy companies to improve the technical content of their products, optimize the industrial structure, and improve their management level. It is believed that after several years of catching up, China's titanium industry can play an increasingly important role in the global titanium industry.
2020年11月24日星期二
2020年11月22日星期日
What is the main purpose of titanium alloy?
In recent years, the standardized production of titanium tubes has appeared in our market, which is also an innovation in product application, greatly increasing its service life and enhancing the application of titanium. The titanium alloy elbows produced by this process have a uniform wall thickness, which introduces the production and development of market product accessories standards, as well as market production and standardization.
Corrosion of titanium pipes is a serious destructive factor in current industrial development. According to relevant media reports, the annual loss of steel due to corrosion is more than 10,000 tons, and the transportation of flammable, explosive, damaging, and corrosive media has dangerous factors. Therefore, the higher the requirements for titanium alloy pipe fittings.
Titanium has the advantages of high strength, lightweight, good heat transfer performance, corrosion resistance, etc., and has been widely used in the chemical industry. These characteristics of titanium make it a relatively economical method to solve chemical engineering problems. Although the investment cost of titanium is higher than that of general performance materials, titanium has been widely used in the chemical industry. According to life cycle analysis, it can be used Reduce maintenance, shorten downtime, increase product quality and increase product life to reduce production costs.
At present, titanium tubes have been widely used in chemical, petroleum, petrochemical, vacuum salt production, preparations, ocean engineering, electric power and other industries. Titanium is widely used in corrosive media due to its good corrosion resistance, such as ion-exchange membrane caustic soda, propylene oxide, etc. Titanium materials have been widely used in equipment and pipelines, and product media are also used in formic acid and methane. Chloride and other projects to solve the problem of pipeline corrosion.
2020年11月19日星期四
What is the difference between titanium alloy, aluminum alloy and magnesium alloy? Which is the best?
Ti-50%Ni (atomic fraction) alloy has the ability to restore the original shape under certain temperature conditions, so it is called titanium shape memory alloy.
NbTi alloy, when the temperature drops to close to zero, the conductor made of NbTi alloy will lose resistance, so that any large current will pass, the conductor will not heat up, and will not generate energy consumption, so NbTi alloy is called superconducting material.
Ti-50%Fe (atomic fraction) alloy has the ability to absorb a large amount of hydrogen. Using this feature of ferrotitanium alloy, hydrogen can be stored safely, that is, without using steel high-pressure cylinders to store hydrogen. Under certain conditions, the titanium-iron alloy can also release hydrogen, so it is called hydrogen storage material.
2020年11月17日星期二
Titanium and titanium alloy pipe installation technology introduction
Generally speaking, titanium tube is the preferred metal material for heating equipment of nitric acid solution. Baoji titanium pipe has better corrosion resistance in oxidizing media (such as nitric acid, chromic acid, hypochlorous acid and perchloric acid, etc.). In reducing acids, the addition of heavy metal salts can play a significant role in corrosion inhibition. The corrosion resistance of titanium palladium alloy and titanium nickel molybdenum alloy is much higher than that of industrial pure titanium.
In reducing acid (such as dilute sulfuric acid solution, hydrochloric acid solution, etc.), due to the destruction of the passivation of the oxide film, the corrosion rate is relatively fast, and it increases with the increase of temperature and concentration. The titanium heat exchanger is subjected to 60% nitric acid at about 193°C, and no corrosion has been found after many years of use. In the boiling 40% and 68% nitric acid, there was some corrosion at the beginning. After a short time, the passiveness of titanium recovered and the corrosion rate was significantly reduced. It may be related to the corrosion inhibition effect of titanium ions.
If the temperature is so high that the solution boils, the sulfuric acid temperature will still corrode even if it drops to 0.5%. When nitrogen is introduced into the sulfuric acid solution at the same temperature, the corrosion rate of titanium is significantly higher than that of air. This corrosion law is basically the same in other reducing inorganic acids. In the sulfuric acid with air at room temperature, industrial pure titanium can only withstand sulfuric acid solutions below 5%; if the temperature drops to about 0°C, the sulfuric acid concentration can be increased to 20%.
2020年11月15日星期日
What industry uses titanium plates, titanium rods and other raw materials?
Titanium is pure metal. Because of the "pureness" of titanium metal, when a substance comes in contact with it, there will be no chemical reaction. In other words, because of the high corrosion resistance and stability of titanium, it will not affect its essence after long-term contact with people, so it will not cause human allergies. It is the only one that has no effect on human autonomic nerves and taste. Metals are called "biophilic metals".
The biggest disadvantage of titanium is that it is difficult to extract. This is mainly because titanium can combine with oxygen, carbon, nitrogen and many other elements at high temperatures. Therefore, people once regarded titanium as a "rare metal". In fact, the content of titanium accounts for about 6‰ of the weight of the earth's crust, which is more than 10 times more than the sum of copper, tin, manganese and zinc.
Material characteristics: very high strength, excellent corrosion resistance in weight ratio, difficult to cold work, good weldability, about 40% lighter than steel, 60% heavier than aluminum, low conductivity, low thermal expansion, high melting point.
Typical applications: golf clubs, tennis rackets, portable computers, cameras, suitcases, surgical implants, aircraft skeletons, chemical appliances and marine equipment, etc. In addition, titanium is also used as a white pigment for paper, painting, and plastic.
2020年11月12日星期四
Titanium alloy piping system has been successfully applied in China's ship-to-sea pipeline
Driven by the country's vigorous support of the marine economy and efforts to build a maritime power, China's marine engineering field has developed steadily, and the scale of marine engineering investment and output value has continued to rise. Titanium, with its lightweight, high strength, and seawater corrosion resistance, is an important structural material in the fields of offshore oil and gas development and seawater resource utilization. It is widely used in marine engineering construction and equipment structural parts. The demand for titanium alloys will continue to increase.
After more than half a century of development, China's titanium alloy industry has accumulated a wealth of production experience. However, the problems left over from the industry's history are prominent, and the structural overcapacity is serious. The supply of high-end titanium alloys cannot meet the increasing demand. At present, the profit margin of the high-end market is emerging. At the same time, with the adjustment of China's national economic structure, the high-end chemical industry, aerospace, marine engineering, medical and pharmaceutical industries have achieved rapid development. The high-end titanium alloy market has shown its own advantages and potential. They have worked hard to gain a place in the high-end field and promote the overall development of the titanium alloy industry. In response to the domestic "independent and controllable" requirement, domestic titanium alloy processing enterprises are ushering in historical opportunities, especially for domestic high-end titanium alloy processing enterprises. I believe that with the correct orientation of national policies and the joint efforts of enterprises, the domestic titanium alloy industry will continue Bigger and stronger.
2020年11月10日星期二
Titanium materials can be used in the aerospace industry
High-quality aviation forgings mainly include aero-engine fan and compressor system discs, receivers, integral blisks, disc shafts, blade forgings, and aircraft structure frames, beams, joints, landing gear forgings, etc. With the technological progress in the design of aero engines and aircraft structures, the development of aerospace forgings in the direction of large-scale, integrated, and precise, has promoted the development and technological progress of forging equipment and its supporting equipment. In order to meet the forging needs of high-quality precision aerospace forgings and difficult-to-deform materials, new process technologies such as isothermal forging, hot die forging, and segmented forging have been developed, as well as corresponding die design and manufacturing and quality control technologies.
In the aviation system, the die forging equipment used for the production of large titanium alloy forgings, apart from the 80-100 MN hydraulic press in the specialized forging plant, in recent years, Shaanxi Hongyuan has equipped a 200MN isothermal forging press and a 200MN clutch-type electric screw press. Among them, the 200MN isothermal forging press has a "constant strain rate" control function and dual worktables. The worktable size is 6000mm×4000mm, and the maximum clearance is 3600mm. The slider speed can be controlled at 0.005～0.5mm/s during isothermal forging. The slider speed can be controlled at 0.5-10mm/s during die forging; the 200MN electric screw press has made great progress in precision, digitization, and intelligence. The maximum striking capacity reaches 360MN, and the dimensional control accuracy reaches ±0.6mm, which is controllable. The deformation speed is 0.2～0.5m/s, which can realize automatic temperature control of the mold. Guizhou Angola was equipped with a 250MN isothermal forging + die forging press in 2017, which can be used for isothermal forging production of large forgings of difficult-to-deform materials. At the same time, Guizhou Anda has several series of ring parts production lines, which can realize the precision rolling of complex and special-shaped cross-section rings of difficult-to-deform materials such as titanium alloy and high-temperature alloy.
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