Saturday, April 25, 2020

What is the role of pure titanium?

Titanium shaped parts are parts used for machinery, made of titanium as raw materials. So, what role does titanium shaped parts pure titanium have?
Pure titanium is a silver-white metal with many excellent properties. The density of titanium is 4.54g / cm3, which is 43% lighter than steel and slightly heavier than the prestigious light metal magnesium. The mechanical strength is similar to that of steel, two times greater than aluminum and five times greater than magnesium. Titanium is resistant to high temperature and has a melting point of 1942K, which is nearly 1000K higher than gold and 500K higher than steel.
Titanium is a chemically active metal. When heating, it can interact with non-metal such as O2, N2, H2, S, and halogen. However, at normal temperature, a thin and dense oxide protective film is easily formed on the titanium surface, which can resist the effects of strong acids or even aqua regia, and exhibits strong corrosion resistance. As a result, the general metals become flawed in the acid solution while titanium is safe and sound.
Liquid titanium can dissolve almost all metals, so it can form alloys with many metals. Titanium steel made by adding titanium to steel is tough and elastic. Titanium and metals Al, Sb, Be, Cr, Fe, etc. generate interstitial compounds or intermetallic compounds.
The aircraft made of titanium alloy can carry more than 100 passengers than other aircraft made of the same weight. The manufactured submarine can resist both seawater corrosion and deep pressure, and its diving depth is 80% higher than that of stainless steel submarines. At the same time, titanium is non-magnetic, will not be discovered by mines, and has a good anti-custodial effect.
Titanium is "biological". In the human body, it can resist the corrosion of secretions and is non-toxic, suitable for any sterilization method. Therefore, it is widely used in the manufacture of medical devices, artificial hip joints, knee joints, shoulder joints, flank joints, skull bones, active heart valves, and bone fixation clips. When new muscle fiber rings are wrapped around these "titanium bones", these titanium bones begin to sustain the body's normal activities.
The titanium of titanium shaped parts is widely distributed in the human body, the content in the normal human body is not more than 15mg per 70kg bodyweight, and its role is not clear. However, titanium can stimulate phagocytic cells and enhance immunity.
grade 36 titanium rod      titanium foil      titanium metric screw      grade 23 titanium plate

Tuesday, April 21, 2020

What are the five characteristics of titanium plates?

Features:
1. Titanium seed plate is an oxide film on the surface, which is equivalent to a good long-term wear-resistant hair release agent. The use of a gr7 titanium alloy plate saves the separation agent and makes the peeling of the electrode plate easy, eliminating the pretreatment of the seed plate The board is half lighter than the copper seed board.
2. The service life of the Grade 9 Titanium Plate is more than 3 times that of the copper seed plate, and it can reach 10 to 20 years according to the operating conditions
3. The crystalline structure of electrolytic copper made of titanium seed plate is dense, the surface is flat and smooth, and the quality is excellent.
4. Since the thin titanium plate does not need to be coated with a separating agent, the contamination of the copper electrolyte can be avoided.
5. Increase the production capacity and reduce the production cost of electrolytic copper, thus having better economic benefits

Monday, April 20, 2020

Titanium tube removes residue by heat treatment

When the hydrogen content in the titanium exhaust tube is too much, the impact toughness and notch tensile strength will drop sharply due to brittleness, so it is generally prescribed that the hydrogen content in the titanium threaded tube should not exceed 0.015%. In order to reduce the amount of hydrogen absorption, the parts should remove fingerprints, rolling mill marks, grease, and other residues before heat treatment. There is no moisture in the atmosphere of the heat treatment furnace. If the hydrogen content of the Gr23 Titanium Tube exceeds the allowable value, it must be removed by vacuum annealing. Vacuum annealing for dehydrogenation is generally maintained at 538-760 ° C and pressure below 0.066 Pa for 2-4 hours.
When the temperature does not exceed 540 ℃, the oxide film on the surface of the titanium tube will not be significantly thickened, and at a higher heat treatment temperature (above 760 ℃), the oxidation rate will rapidly accelerate, and at the same time, oxygen will expand into the material to form a diffusion layer— Pollution layer. The oxygen contaminated layer has a high brittleness ratio and causes cracks and damage on the part surface. There are mechanical processing methods (such as sandblasting, house cutting, etc.) or chemical methods such as pickling and chemical milling to remove the contaminated layer of oxygen. During the heat treatment, the heating time should be as short as possible on the premise of ensuring the heat treatment of the meteorite. It is performed in a vacuum furnace or a heating furnace of inert gas (argon, nitrogen, etc.). The appropriate application can also avoid or reduce the pollution generated by the titanium tube parts when they are heated in the air furnace.

Thursday, April 16, 2020

How to improve the quality of titanium welded tubing?

Due to the strong activity of the Seamless Titanium Tube Grade 2, the welding temperature of the titanium tube, the protective effect of the shielding gas, and the welding environment are more stringent in the welding of the Grade 7 Titanium Tube, and a little carelessness will cause greater welding quality. If the impact is serious, the product will be scrapped. The practice has proved that: through the analysis of the main factors affecting the welding quality, the key welding process is determined, and the control of the environment, personnel, welding parameters and methods during the welding process is strengthened, which can effectively ensure that the welding quality of the titanium tube material is further improved. Improve to prevent the emergence of welding waste.
In recent years, a new type of gr9 titanium tube has been widely used. Because of its lightweight, high strength, and corrosion resistance, titanium alloys are widely used in aerospace, petrochemical, and machinery manufacturing fields, and are currently being used in the construction of piping systems for surface ships for the first time. However, because the titanium alloy is a highly active metal, it has a great affinity for oxygen, hydrogen, nitrogen, and other gases at high temperatures, that is, it has a strong ability to absorb and dissolve gases, especially during the welding process. This ability is accompanied by an increase in welding temperature, which is particularly strong. The practice has proved that if the absorption and dissolution of titanium alloys and oxygen, hydrogen, nitrogen, and other gases are not controlled during welding, the product will eventually be scrapped. Therefore, the welding of titanium pipe joints must be effectively prevented and controlled to meet the quality requirements of welding.

Tuesday, April 14, 2020

What should be paid attention to when filtering materials of titanium tubes?

Precautions:
1. If you want to use titanium plate filter material, you must not exceed its maximum working capacity.
2. When using the titanium plate as a filter material, be sure to prevent the titanium plate from being hit or scratched, and save it from contamination.
3. After using the titanium material, it should be cleaned and stored.
4. Before entering the work, the titanium plate filter material must be started before it can be adjusted to the normal working environment.
Titanium Coil Tube        titanium tube grade 9      Thin Wall Titanium Tube

Sunday, April 12, 2020

Titanium product identification method and usage guide

The identification method of titanium is relatively simple. At present, there are more and more titanium products on the market. The most common ones are glasses, watches, necklaces and other jewelry, as well as medical, construction, power, industrial, etc. You can see the figure of titanium, so it is still necessary to distinguish titanium. Here are a few common methods for identifying titanium:
1. Titanium is non-magnetic, and magnets can be used to test titanium.
2. Different conductive properties, different metals have different conductive properties, and it is easy to judge the metal composition by testing the conductive properties of metals.
Third, titanium is generally white or silver-gray, and is easily oxidized and has a self-healing function, so even in excellent stainless steel can not be compared with titanium's stainless function.
At present, there are special requirements for some metals used on the human body. For example, some metals are not suitable for being close to the human body, which is easy to cause some allergies, lesions, or cancer. Therefore, some metals that are close to the human body must have strict metal composition indicators, which cannot be generalized, and we need to pay special attention when we identify metals.
At present, the common titanium metals on the market are mainly titanium alloys. There are not many pure titanium products. Although titanium metals are very good, they do not need such excellent metals in many places, but often different titanium alloys. The different characteristics exhibited are even more extensive than the application field of pure titanium, so in the process of our users, we must select the titanium products suitable for our own use according to our own needs.
 titanium flat rod              titanium heat exchanger pipe              Gr12 Titanium Sheet          

Wednesday, April 8, 2020

The basic principle of pickling titanium

The metal dissolves in the pickling solution, accompanied by the electron transfer on the metal atom, so the electrochemical corrosion phenomenon is the main cause. The result of metal atoms losing electrons is the formation of metal ions. For example, grade 5 titanium bar loses electrons in reducing acid and becomes trivalent titanium ion.
The pickling of titanium alloy rod processed materials is carried out in a mixed acid solution containing hydrofluoric acid or fluoride. When pickling, hydrogen ions may be reduced to form atomic hydrogen or molecular hydrogen. Atomic hydrogen has a tendency to diffuse into the metal, which may cause hydrogen embrittlement.
When titanium is pickled in a nitric acid solution containing fluoride ions, the gr5 titanium foil is oxidized and nitric acid is reduced. The final product is the formation of a titanium fluoride complex, water, and colorless nitric oxide.
If exposed to the atmosphere, nitric oxide quickly oxidizes into brown toxic nitrogen dioxide when it encounters oxygen in the air and volatilizes.
Therefore, when pickling, try to expel nitrogen dioxide quickly through ventilation. If about 0.5% H202 is added to the pickling solution, the NO will be oxidized in the solution and it will escape from the liquid surface so that the air pollution is appropriately reduced.
When pickling titanium wire in a nitric acid solution containing 5% -7% fluoride ion, if the mass fraction of oxidant nitric acid is less than 15%, the over-potential of various reduction reactions in the solution determines the hydrogen ion is more The chance of reduction, and after being reduced to hydrogen atoms, it will be sucked into the titanium in a certain ratio, diffuse to some parts of the alloy to gather or generate titanium hydride to cause hydrogen embrittlement. Therefore, in order to prevent the hydrogen absorption of titanium materials during acid pickling, the ratio of nitric acid to hydrofluoric acid should always be kept greater than 5. However, if the content of nitric acid is too large, the reaction will be slow, the production efficiency will be reduced, and the flue gas will be produced, making the operation difficult.

Tuesday, April 7, 2020

Titanium screws have high tensile strength and toughness

Titanium screws made of titanium alloy have high tensile strength and toughness, and can provide a higher preload than pure titanium abutment screws, especially to maintain the preload after cyclic loading. Titanium is known not to corrode, construction companies generally use titanium nails in knowledge, they will not rust and cause structural collapse. .
When screws are used for construction from other metals, they lose their strength, and stability is very common due to harsh weather conditions. The destruction of ordinary screws that perform additional renovations is an expensive business and therefore titanium is recommended. Their reliability means that these screws are suitable for important construction projects, especially the external structure. There are various kinds of titanium screws including hexagon bolts, flange bolts, washers and fenders.
Titanium also proves popular when it comes to choosing motorcycle axles. Common screws are made of steel, brass and bronze, and titanium is slowly replaced by their president. Titanium screws are also used in plastic surgery. They also seek special requirements by orthodontists in ways that make dental implants more stringent. This is because the implant is in the bone and does not depend on where the patient keeps it. Some clinical studies have shown that when titanium screws can be used to keep the implant in place, orthodontic treatment is successful in 97% of cases.
Titanium is biocompatible, and dental implants can be in place for 30 years or more. Titanium is also used in various other surgical methods because it is non-toxic and therefore accepted by the body. This metal has a similar modulus of elasticity, which means that adjacent bones do not deteriorate. If a titanium alloy is used, however, the stiffness becomes bone twice, which may cause deterioration
Titanium screws are made of metal of the same name and have unique properties that make them ideal for construction work as well as in certain types of surgery. Titanium is a low-density metal that does not corrode, which means that the screws it makes are often reliable. The strength of steel but half the density, titanium screws provide durability, but this comes at a price.

Thursday, April 2, 2020

Application of titanium tubes and titanium alloy tubes in the field of coolers in China

At present, China's economy maintains rapid and healthy development, which provides a good market environment for the development of the domestic titanium industry. Domestic titanium for the chemical industry, titanium for power generation, titanium for marine development, titanium for the automobile industry, titanium for bioengineering, etc. have developed rapidly. Especially the recently launched large aircraft program in China has also greatly stimulated the demand for titanium materials 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 production enterprises, but also a severe challenge to the domestic titanium alloy industry, which requires titanium alloy enterprises to improve the technical content of their products, optimize the industrial structure, and improve their own management level. It is believed that after several years of pursuit, China's titanium industry can play an increasingly important role in the global titanium industry.