Problems Existing in the Processing of Titanium Alloy Fasteners

Corrosion problem. When installing titanium alloy fasteners, it is easy to form a certain gap, so that there will be surface paint inflow between metal air strikes, resulting in the fasteners being vulnerable to clothing during the production process. During subsequent use, the connection tightness will be affected. The main reason for the corrosion resistance of titanium alloy materials is that there is a protective oxide film on the surface. This film can effectively protect the titanium alloy inside the material from being oxidized, thereby improving the corrosion resistance of the titanium alloy material.

Problems in turning. Titanium alloy materials are difficult to process materials and have poor thermal conductivity. The heat generated during machining does not diffuse through the part and machine structure, but is concentrated in the cutting area, where there is a strong notch sensitivity, which can lead to chipping and deformation; and dull cutting edges can generate even higher heat And further reduce the tool life. The high temperature generated during cutting will also cause the workpiece to harden continuously, which will affect the surface integrity of the titanium and may lead to inaccurate geometric accuracy of the part and severely reduce its fatigue strength. Generally speaking, in In reasonable machining conditions, the turning process is not difficult. If it is for mass production, continuous cutting, and cutting with a relatively large amount of metal removal, carbide tools need to be used; while forming cutting or cutting requires steel tools. Make reasonable adjustments and use cermet cutters if necessary.

Precision issues in machining Titanium Flat Washers. The precision requirements for machinery will be higher. In mechanical production, because the tool is in a state of working wear during each production process, and it is calibrated according to the program, the density of titanium alloy fasteners is higher, and the tool is easily worn during the machining process. Under the state, the tool is still processed according to the program, and it is easy to cause the precision of the compact part to be affected during the processing. If the precision of the fasteners is not strictly controlled within the error range during the entire processing process, the titanium alloy and other materials cannot be tightly connected during the use process, which will have a certain impact on the subsequent use and improve The precision of titanium alloy fasteners in the machining production process is a major problem that needs to be overcome in the production process. For example, the fastener process product shown in the figure is a product made in a high-precision production workshop, and the connection performance of this product is better.

Pipe cutting and beveling of titanium pipes!

With the continuous expansion of the application field of titanium tube, the consumption is also rising. Our titanium tubes have been used in construction, in order to make construction more scientific, we can provide users with high-performance titanium tubes.

Research on refractory materials for casting molds has always been linked to the crucible materials for smelting titanium tubes and titanium alloy tubes. Based on kinetic reasons, the crucible materials need to be in contact with the titanium liquid for a long time during smelting, and the titanium liquid and the titanium liquid are in contact with each other for a long time. The contact time of the holding material is much shorter, so the available crucible material can be used as a mold material for titanium alloy pipes.

Materials that have been studied include carbides, nitrides, borides, sulfides, oxides, rare earth oxides, fluorides, oxyfluorides, sulfur oxides, and refractory metals such as W and Mo. Only very few materials have high chemical stability to titanium liquid, including ThO2, certain rare earth oxides, TaB2, Npc, some rare earth sulfides and some rare earth oxyfluorides.

Pipe cutting and beveling processing of Grade 2 Pure Titanium Tube; pipe cutting and beveling processing should be carried out by mechanical processing methods in special workplaces. When processing, use clean water with non-polluting medium for cooling to prevent oxidation. Processing tools should be dedicated and kept clean to prevent iron contamination. The processed nozzle should ensure that the surface is smooth and free of defects such as cracks and heavy skins. The maximum inclination deviation of the cut plane shall not exceed 1% of the pipe diameter.

Introduction to the application of titanium alloy materials in the military industry!

Most of the aircraft materials in the world are made of titanium alloy, but the structure of the aircraft using titanium alloy is more stable, which greatly reduces the weight of the aircraft and increases its stability of the aircraft.

Titanium rods and titanium alloys have the characteristics of low density, high strength, high-temperature resistance, and low-temperature resistance. Titanium and titanium alloys are essential materials for the military industry. For example, the American f-22 can conduct supersonic cruise flights for a long time. The point is to lose weight while maintaining your own strength. Without titanium, the fighter's long-range combat capability is greatly reduced. titanium sheet metal

On the naval side, titanium alloys can help submarines penetrate deep into the sea without being crushed by powerful seawater. For example, Russia's "Serra" class nuclear submarines are made entirely of titanium alloy and can dive to 600 meters, which makes Western submarines intimidating. Of course, it is also expensive because of the large-scale use of titanium alloys, known as "goldfish". In addition, titanium is non-magnetic, and warships made of titanium alloys can effectively resist magnetic mines and have strong corrosion resistance.

Five flaw detection methods for titanium materials----ultrasonic flaw detection

The frequency range of sound waves that people's ears can directly receive is usually 20Hz to 20kHz, that is, the sound (sound) frequency. The frequency below 20 Hz is called infrasound, and the frequency above 20 kHz is called ultrasonic. In industry, ultrasonic waves of several megahertz are commonly used for flaw detection. When the ultrasonic frequency is high, the propagation linearity is strong, and it is easy to propagate in solids, and it is easy to reflect when it encounters the interface formed by two different media, so it can be used for flaw detection. Usually, the ultrasonic probe is in good contact with the surface of the workpiece to be detected, and the probe can effectively transmit ultrasonic waves to the workpiece and can receive the ultrasonic waves reflected from the (defect) interface, convert them into electrical signals, and then transmit them to the instrument for processing. According to the speed of ultrasonic propagation in the medium (often called the speed of sound) and the propagation time, the location of the defect can be known. When the defect is larger, the reflecting surface is larger, and the reflected energy is larger, so the size of each defect (equivalent) can be checked according to the size of the reflected energy. Commonly used flaw detection waveforms include longitudinal wave, transverse wave, surface wave, etc. The former two are suitable for detecting internal defects, and the latter is suitable for detecting surface defects, but they have high requirements on surface conditions. 6al4v titanium sheet

Titanium Clad Copper Plate

Titanium Clad Copper Plate: 

Technique: Rolled, Extrude, Explosive Cladding
Sheared Strength: ≥130 Mpa
Compact Rate: ≥98%
Clad Material: Ti
Base Material: Copper
Size: Custom sizes are available

Introduction of titanium and titanium alloy powder

titanium alloy powder generally includes three aspects, namely purity, particle size and particle shape. The purity of titanium powder is related to its particle size. For products of the same specification, the smaller the particle size, the lower the purity. Titanium powder particle size is divided into 4 grades, the particle size of 1000-50pm is coarse powder, 50-10pm is fine powder, 10-0.5pm is fine powder, and less than 0.5pm is ultrafine powder. In graded products, except for the requirements of special purposes, it is generally graded by oxygen content, that is, the lower the oxygen content, the better the quality and the higher the grade. Those with an oxygen content of less than 0.15% are high-quality titanium powders.

Specifications: 10 mesh, 20 mesh, 30 mesh, 35 mesh, 36 mesh, 40 mesh, 50 mesh, 60 mesh, 80 mesh, 100 mesh, 120 mesh, 150 mesh, 160 mesh, 180 mesh, 250 mesh, 300 mesh , 325 mesh, 350 mesh, 400 mesh

Physical properties: Titanium powder is dark gray amorphous powder, boiling point ≤3000℃, melting point 1668℃±2℃, insoluble in water and organic solvents at room temperature. It is a non-magnetic metal, it will not be magnetized in a large magnetic field, and it is non-toxic and tasteless, and has good compatibility with human tissue and blood.

Chemical properties: It does not interact with water, dilute sulfuric acid, dilute hydrochloric acid and nitric acid at room temperature, but can be etched by hydrofluoric acid, phosphoric acid, and molten alkali. Titanium is soluble in hot hydrochloric acid and hot sulfuric acid, and also soluble in hydrofluoric acid. Or in a mixture of hydrofluoric acid and hydrochloric acid (sulfuric acid). Titanium powder will increase the content of N, H, O, and C in the atmosphere. May explode if mixed with strong oxides.

Titanium powder has good corrosion resistance and is mostly used in aerospace industry, chemical corrosion-resistant materials, electric vacuum materials, alloy additives, etc. Titanium powder refers to titanium metal powder with a size of less than 1mm and an irregular shape, usually black and gray. Titanium powder has a large surface free energy. Therefore, it is more active than metal titanium blocks, and it is easier to react with other elements or compounds, resulting in oxidation, combustion and explosion. It is a dangerous product. Its purity and properties largely depend on the preparation method and its process conditions.