What is a semiconductor target

The semiconductor Zirconium Sputtering Target is also a kind of sputtering target, which is mainly used in the semiconductor field. In several production links such as silicon wafer manufacturing, wafer manufacturing, and chip packaging of semiconductor chips, semiconductor targets are required for wafer manufacturing and chip packaging.

The main function of the semiconductor target is to make metal wires that can transmit information on the chip. The specific production process is to first use high-speed ion current to bombard the surface of different types of sputtering targets under vacuum conditions. The atoms on the surface of the target are deposited on the surface of the semiconductor chip layer by layer, and then the metal film deposited on the surface of the chip is carved into nanometer-sized metal wires, and the metal wires are used to connect the micro transistors inside the chip to achieve transmission. function of the signal.

Rolling method of titanium thick-walled tube, titanium seamless tube and titanium alloy tube

Titanium pipes can be divided into two categories: seamless pipes and welded pipes, which can be further divided into hot extruded pipes, hot rolled pipes, cold rolled pipes, welded pipes, and welded-rolled pipes. Production by skew rolling (two-roll or three-roll mill). Thin-walled seamless titanium tubes (small diameter) need to be cold-rolled or drawn. Some titanium alloys have low plasticity in cold rolling and are prone to cracking. In order to improve the rollability of Grade 2 Pure Titanium Tube, warm rolling can be used.

Industry requirements for thermal correction of titanium plates

In order to make the thermal calibration successful, the appropriate heating temperature, holding time, and forming pressure must be selected. The pressure exerted on the parts during thermal calibration is sufficient as long as the parts can be pressed against the mold. No matter how large the pressure is, it will not have much effect on the branch shape but may lead to the shape of the mold and the workbench. Therefore, the main factors affecting the thermal correction effect are temperature and time, and temperature is the decisive factor. In order to eliminate spring back satisfactorily, only at a certain temperature. The so-called thermal specification is mainly to determine the calibration temperature and time. In summary, the appropriate thermal specification for forming a certain titanium plate must ensure that the part meets the following basic requirements after shape correction: Grade 12 Titanium Sheet

1. The parts are well molded and basically do not need manual trimming. The shape, size, and surface quality meet the inspection requirements of Gr5 Ti-6Al-4V Titanium Plate parts;

2. The mechanical properties of the material are basically stable, and the main performance indicators at room temperature and operating temperature meet the regulations;

3. The residual stress inside the part is basically eliminated;

4. The average hydrogen content of the material after thermal correction does not exceed the allowable value of 150p. p. m;

5. The total thickness of oxide skin and gas permeable layer shall not exceed half of the allowable negative deviation of sheet thickness;

6. There is no change in the metallographic structure of the material, and there is no obvious growth and overheating of the grains;

7. Under the premise of meeting the above requirements, the temperature should be as low as possible, the time should be as short as possible, and the pressure should be able to ensure that the parts can be pressed.

What are the magical uses of titanium wire?

The performance of titanium is so excellent, the role of titanium and titanium products has become more extensive. Our most common titanium products are titanium plates, titanium rods, titanium standard parts, titanium dioxide, and even Gr5 Ti-6Al-4V Titanium Wire. With the continuous research and development of titanium, the application fields of titanium are becoming more and more extensive, and there are more and more titanium and titanium alloys and various titanium products. Let's take a look at the classification and uses of titanium wire.

Generally, according to whether the raw material is pure titanium or titanium alloy, it can be divided into pure titanium wire and titanium alloy surgical medical titanium wire; it can also be divided into α titanium alloy and near α type alloy, (α+β) type according to different components. Alloys, near-beta alloys, and beta alloys. It can also be classified according to the different properties of titanium wire, and it can also be classified according to other types, but the basis of other titanium wire classifications is relatively small, and it is adjusted according to the parameters of each industry.

Application of Titanium Standard Parts in Ocean Engineering

Titanium standard parts are the most widely used mechanical base parts. my country's fastener products are exported to many countries in the world, and fastener products from all over the world are also pouring into the Chinese market. Fasteners, as one of the products with the largest import and export volume in my country, are in line with international standards, which have important display significance and significance for promoting Chinese fastener enterprises to go global and promoting fastener enterprises to fully participate in international cooperation and competition. strategic significance. Fasteners are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. Also known as standard parts in the market. Due to the specifications, dimensions, tolerances, weights, properties, surface conditions, marking methods, and specific requirements of items such as acceptance inspection, marking and packaging for each specific fastener product, they are separately specified in several national (industry) standards. , such as Imperial, German, and American. Aerospace Grade Titanium Round Bar

Titanium standard parts are an important structural metal material. It has the advantages of low density, high specific strength, corrosion resistance, non-magnetic thermal conductivity, low five-toxicity, strong weldability, and good biocompatibility. It is widely used in aviation and aerospace. , petroleum, chemical, electric power, construction, sporting goods, medical and other fields. titanium exhaust flange

Titanium standard parts have important applications in many aspects of ships and marine fields, and are called "marine titanium screws". Seawater is highly corrosive, which requires materials used in the ocean to have good corrosion resistance; in addition, materials used in the ocean are subject to long-term erosion by seawater and periodic impact of waves, so the comprehensive mechanical properties of the material are also affected. higher requirements. Titanium has good mechanical properties and strong corrosion resistance. It is hardly corroded in seawater and humid environments. Its comprehensive performance is far superior to traditional metal structural materials such as stainless steel, aluminum alloy, and copper. It is an ideal material for ships and marine engineering. . For example, TA16 and TA17 titanium alloys have been used in Russian submarines, greatly improving the submarine's combat performance and safety and reliability. Titanium is also becoming more and more important in marine development, mainly involving offshore oil production equipment, seawater desalination, etc. In offshore oil production equipment, the equipment is often exposed to the corrosion of seawater, crude oil, chlorides and sulfides; it also bears working loads and wind and wave impacts.

Process of restarting arc after power failure during vacuum consumable smelting of titanium and titanium alloys

The process of restarting arc after power failure during vacuum consumable smelting of titanium and Grade 5 Ti-6Al-4V Titanium Plate includes the following steps: when restarting arc after smelting interruption, the smelting current is rapidly increased to 75-80% of the normal smelting current, and the current is maintained at this time. When the edge of the molten pool reaches the crucible wall, keep it for 2-3 minutes, and then quickly increase the smelting current to the normal smelting current. The advantage of this process is that the total arcing time is greatly shortened, the gap between the cooling volume of the ingot and the crucible wall is reduced, and the internal shrinkage cavity formed by the cooling and solidification of the ingot is avoided: when the melting current reaches the normal melting current When the smelting current is 75~80%, keep the smelting current for a period of time, so that the melting speed of the electrode and the solidified molten pool can be controlled more accurately, so as to avoid the instantaneous generation of a large amount of molten liquid flowing into the gap between the ingot and the crucible wall, or causing cold insulation defects .

The application status of large aerospace forging materials

Aviation forgings generally use materials with high specific strength and specific stiffness. Materials for large aviation forgings mainly include titanium alloys, ultra-high-strength steels, and aluminum alloys.

Titanium alloys for large aerospace titanium forging

Due to its high specific strength, specific stiffness, corrosion resistance, and other excellent properties, titanium alloys have been widely used in the aviation industry, and have significant effects on reducing the weight of aircraft structures and improving the service life of parts. Especially for military aircraft, some important structural components such as wing spars, bulkheads, landing gear, etc. are widely processed from titanium alloy forgings, which have high weight, large size, and cross-sectional area.

At present, the main grades of Ultra-Thin Titanium Alloy Sheets for aviation are TC4, TC18, TC21, TA15, TB6 (US Ti-1023 alloy), and so on. Among them, TC18 is suitable for the manufacture of large forgings due to the highest hardenability and is currently the most widely used in China. According to the demand of civil aircraft such as Boeing and Airbus, Russia has developed Ti-55531 titanium alloy based on TC18 alloy by reducing the content of Fe, which is easy to segregate. Ti-55531 is higher strength, with superior hardenability and a wider processing window, and is currently used on parts such as A380 aircraft hanger joints and landing gear struts