Notes on installation and transportation of titanium pipes and titanium fittings:

1. Titanium and titanium alloy pipe installation Titanium pipe manufacturers should pay attention not to contact or collide with ferrous materials during transportation and storage of titanium and titanium alloy pipes.

2. Titanium and titanium alloy tubes should be cut by mechanical methods, and the cutting speed should be low. When cutting or repairing titanium tubes with a grinding wheel, special wheels should be used; flame cutting is not allowed. The groove should be machined.

3. Titanium alloy welded pipes shall be welded by inert gas shielded welding or vacuum welding. Oxy-acetylene welding or carbon dioxide gas shielded welding shall not be used. Ordinary manual arc welding shall not be used.

4. Titanium and titanium alloy pipes must not be struck and squeezed with iron tools and materials during installation; rubber plates or soft plastic plates should be inserted between carbon steel supports and hangers and titanium and titanium alloy pipes to make them Not in direct contact with titanium and titanium alloy pipelines; titanium and titanium alloy pipelines should be installed with bushings when passing through walls and floor slabs, the gap should not be less than 10mm, and insulation should be filled, and the insulation should not contain iron impurities.

5. Titanium and titanium alloy pipes should not be directly welded to other metal pipes. When connection is required, a looper flange connection can be used. The non-metal gasket used is generally a rubber or plastic pad, and the chloride ion content should be controlled to not exceed 25ppm

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Background of titanium and alloy materials in marine applications

As we all know, the area of ​​the ocean occupies 70% of the earth's area. The ocean is rich in resources, including marine fish that we consume daily, industrial oil and gas resources, the use of energy contained in alternating seawater tides, and many deep oceans to be detected Creatures and resources in unknown areas. Being able to make good use of the ocean efficiently will be the greatest wealth of mankind. However, in the course of marine development and exploration, the high salinity of seawater, biological pollution, and corrosiveness has caused us a lot of trouble on the planet. The advantages and characteristics of titanium and titanium alloy materials in the marine field have a bright future. come out.

Titanium is a material with excellent physical properties and stable chemical properties. Titanium and its alloys have high strength, low specific gravity, resistance to seawater corrosion and marine atmosphere corrosion, and can well meet the requirements of people in marine engineering applications. After years of efforts by titanium industry professionals and marine engineering application researchers, titanium has been widely used in marine oil and gas development, harbor construction, coastal power stations, desalination, ships, marine fisheries, and marine thermal energy conversion. Nowadays, titanium for marine engineering has become one of the main fields of titanium civil applications.

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TA10 (American Standard Gr12)

TA10 grade titanium has an "excellent" grade due to its high quality solderability. It is a highly durable alloy that provides great strength at high temperatures. TA10 grade titanium has similar characteristics to 300 series stainless steel.
The alloy can be hot or cold formed by pressing, hydroforming, stretch forming or drop weight method. Its ability to form in various ways makes it useful in many applications. The high corrosion resistance of this alloy also makes it invaluable for manufacturing equipment where crevice corrosion is required. TA10 grade can be used in the following industries and applications:
Shell and heat exchanger
Hydrometallurgical applications
High-temperature chemical manufacturing
Shipping and ticket components
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What are the characteristics of molybdenum targets? Molybdenum target purity

Because molybdenum has a high melting point, high electrical conductivity, low specific resistance, and good corrosion resistance and environmental protection, molybdenum targets are widely used in the electronics industry, such as flat panel displays, thin-film solar cells, Wire material, Sifeng Xiaobian will introduce you the characteristics of molybdenum target.

1.High purity

The higher the purity of the molybdenum target, the better the performance of the sputtered film. Generally, the purity of the molybdenum sputtering target needs to be at least 99.95%. However, as the size of glass substrates in the LCD industry continues to increase, the length of wiring and the width of wires have to be reduced. In order to ensure the uniformity of the film and the quality of the wiring, the requirements for the purity of molybdenum sputtering targets have also increased accordingly. Therefore, according to the size of the sputtered glass substrate and the use environment, the purity of the molybdenum sputtering target is required to be 99.99% -99.999% or higher.

2.High density

During the sputtering coating process, when a relatively dense sputtering target is bombarded, a large-sized target particle or particle splashes due to the sudden release of gas existing in the pores inside the target, or the film is subjected to Sub-electron bombardment causes particles to splash, and the presence of these particles will degrade the film quality. In order to reduce the pores in the target solid and improve the film performance, the sputtering target is generally required to have a high density. For molybdenum sputtering targets, the relative density should be above 98%.

3.Grain size

Generally, the molybdenum sputtering target has a polycrystalline structure, and the grain size can be on the order of micrometers to millimeters. Experimental studies have shown that the sputtering rate of fine-grained targets is faster than that of coarse-grained targets, and the thickness distribution of the deposited films is more uniform for targets with smaller grain size differences.

4. Crystallization direction

Because the target atoms are easily sputtered along the direction of the hexagonal close arrangement of atoms during sputtering, in order to achieve the sputtering rate, the sputtering rate is often increased by changing the crystal structure of the target. The crystal orientation of the target also has a large effect on the thickness uniformity of the sputtered film layer. Therefore, obtaining a target structure with a certain crystal orientation is very important for the sputtering process of the thin film.

5, thermal conductivity

Generally, the molybdenum sputtering target must be connected with the oxygen-free copper (or other materials) chassis before sputtering, so that the target and the chassis have good thermal conductivity during the sputtering process. After the binding, the ultrasonic inspection must be performed to ensure that the uncombined area of ​​the two is less than 2%, so as to meet the requirements of high-power sputtering without falling off.

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What are the properties and uses of TC11 titanium alloy rods?

As a stable metal, TC11 titanium alloy rod has the characteristics of high hardness, low density, and good corrosion resistance. Because of these excellent properties of titanium, we will fuse TC11 titanium alloy with other metals to make titanium. Alloy rods not only have the original characteristics of titanium, but also some new characteristics.

TC11 titanium alloy rods have high strength, low density, good mechanical properties, corrosion resistance, high stability and other effects, but the more stable the metal, the more difficult it is to process. Therefore, the process of producing titanium alloy rods is more complicated and the cost is higher. High, so the earliest titanium alloy rods were mainly used in aircraft engine parts, as well as rockets, missile flight parts, etc. In addition, the main application fields of titanium alloy rods are military, scientific research, made of high-strength, corrosion-resistant parts, Very few people can use it.

With the continuous development of technology, the cost of titanium alloy rods has been reduced a lot, and it can be used in industry, construction, and civilian use. The high-quality properties of titanium alloy rods have led to the popularity of titanium products.

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Application of titanium rod, titanium wire and titanium plate in the shipbuilding industry

Nuclear submarines, deep submarines, atomic icebreakers, hydrofoil vessels, hovercraft, and minesweepers use titanium rods, titanium plates, propellers made of titanium wire, submarine whip antennas, seawater pipelines, condensers and heat Switches, acoustic devices, fire fighting equipment, etc. The main applications of titanium alloys are industrial pure titanium, Ti-6Al-4V, Ti-6Al-4VELI, Ti-6Al-2Nb-1Ta-0.8Mo, Ti-3Al-2.5V, and ЛT-3B alloy [Ti- (3.5 ～ 5.0) Al- (1.2 ～ 2.5) V], T-7M [Ti- (1.8 ～ 2.5) Al- (2.0 ～ 3.0) Zr].
In addition, titanium nickel alloys with shape memory characteristics have been used as pipe joints in submarines. This is very practical when using memory alloys as joints in seawater when it is difficult to weld by ordinary methods.
Deep-sea vessels used for mining manganese nodules in the ocean in the United States are prepared to use titanium rods. A deep-sea vessel uses hundreds of Ti-6Al-4V titanium alloy rods to produce large-caliber thick-walled pipes with a thickness of 10mm and a diameter of 250mm. Deep-sea marine pumps for mining manganese nodules are used to salvage seawater with manganese blocks under vacuum pressure. This pump requires resistance to seawater pressure of 5000-6000m deep, and also requires resistance to corrosion and friction. Titanium is suitable for manufacturing such pumps. material.
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Development Trend of Fine Titanium Tube

1. Highly demanding chemical composition, which is the basis for the promotion of the quality of ordinary titanium tubes (functional stability, user heat treatment and stability, functional stability after processing product parts).
2. High purity, can improve fatigue life, refine the arrangement of titanium tube, and refine the phase arrangement of γ-α. (N, H, O content is low, impurities are scattered slightly, harmful element content is low, heavy metal content is low).
3. Outstanding appearance quality (without affecting the user's appearance defects: cracks, subcutaneous bubbles, subcutaneous doping, decarburization layer, etc.).
4, high shape and scale accuracy (more than five-thousandths of the diameter).
5, fine and uniform low magnification arrangement (segregation, looseness and other shortcomings). The concept of heating the rolled titanium tube is not only to improve the hot working function but also to control the uniformity of the composition.
6. Ambitious metallographic arrangement (to be satisfied with the subsequent cold drawing, cold processing, cold heading, etc.).
The future development trend of capillary titanium tube skills:
1. Skills: Develop special titanium tubes with high efficiency and compactness, low-cost skills, process skills, contact skills, and low-cost processing skills.
2. Commodities: develop high-quality, high-function, high-precision, long-life products, and develop resource-saving titanium tube types (rarely use rare metal elements). The development components are simply arranged and disordered, the potential of existing titanium tube types is explored, and low-cost titanium tube types are developed.
3. Environmental protection: develop innovative products that are easy to recover, do not pollute, reduce emissions, save resources, and sustainably develop.
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