Application and selection of titanium alloy valve

Titanium and titanium alloy, light weight, high strength, high yield ratio, non magnetic, biologically inert, and has excellent corrosion resistance. In seawater environment, titanium and Titanium castings almost no corrosion, corrosion resistance is excellent in most chemical medium. At present, with the progress of science and technology and all walks of life to the application of new materials to increase the strength, the necessary products of titanium valve as the medium of various special environment and special fluid delivery system has been used. However, the fluid medium and environmental conditions in different areas and industries are not the same, performance requirements of the material used on different titanium valve. At the same time, because of the different components ofTitanium alloy valveperformance requirements are different, different process, and to reduce the cost of parts needed to use alternative materials and other factors, the material has become one of the technical problems of first consideration must be titanium valve design and manufacturing, and suffer the widespread concern and attention. Industrial pure titanium refers to non titanium alloys with different Fe, C, N, O and other impurities content. Industrial pure titanium can not be heat treated strengthening, molding excellent performance, easy welding and brazing. Titanium alloy with titanium, alloy by adding Al, Sn, Cr, Mo and Mn elements. Titanium alloy usually in annealing state phase classification, divided into alpha, beta and alpha + beta type titanium alloy. The main components of titanium alloy for alloy Ti with Al, Sn, Cr, alpha stable elements, the return of state organization for a solid solution. Titanium alloy can not be strengthened by heat treatment, its strength than the beta and alpha + beta type titanium alloy is low, but keep the high temperature strength and good in 500 ~ 600 ℃ when in use. The welding properties, casting properties, pressure processing performance, stability and no cold brittle good with titanium alloy, disadvantage is the low technology of plastic and the hydrogen embrittlement sensitivity. Titanium alloy is widely used in practice. Casting titanium metal must have fluidity and good processibility, mechanical properties of domestic and foreign typical casting titanium and titanium alloy is shown in table 1. Wrought titanium metal must have good plasticity, mechanical properties of domestic and foreign typical forging of titanium and titanium alloy is shown in table 2.

Great effect on the mechanical properties of O, C and N impurities often exist in titanium to titanium, which can enhance the strength of titanium and reduce its plasticity, the larger N, effect of C is low, the effect of intermediate O. In addition, B, Be and Al elements to improve the impact strength of the larger Ti, Cr, Mo, Mn, Fe, V and Sn on the strength of titanium has little effect. Al is often used as a stable elements of alpha, alpha + beta type titanium alloy and alloy elements, a grain of alloy, improve the recrystallization temperature and phase transition temperature, and a significant strengthening effect, and can reduce the alloy density, increase the elastic modulus. Mo is often used as the stable elements, beta beta alpha + beta type titanium alloy and alloy elements, is not significantly reduces the material plastic case, strengthen the role of the larger, can also improve the fracture toughness, the corrosion resistance of materials, reduce the stress corrosion sensitivity.

Titanium and titanium alloy of high strength, low density and other properties make it widely used in aerospace engineering. Such as various pipeline aircraft on the extensive use of titanium alloy valve, Titanium castingstype relates to the cut-off valve, check valve, needle valve, plug valve, ball valve and butterfly valve. Titanium valve as the key system components conveying fluid control titanium alloy pipe, widely used in chemical engineering. Valve valve with fasteners as important component, is also very important in valve design, manufacture. Implemented in a large PTA project mass production and application. Titanium valve is widely used in chemical industry, but must pay attention to its not suitable for any chemical medium. The hydrofluoric acid, hydrochloric acid, sulfuric acid and phosphoric acid and oxalic acid, formic acid, hot concentrated three chloroacetic acid, three trifluoroacetic acid and strong corrosive aluminum chloride, have severe corrosion effect of titanium and titanium alloy, titanium valve is not suitable for this kind of chemical medium, should pay attention to in use.‍

titanium check valve Materials commonly used glasses

Most commonly used glasses plastic and metal materials can be divided into two categories

Titanium material found

Development of titanium materials: sunrui titanium tube a German chemist in 1794 ( two hundred and seven years ago ) discovered this new metal element and named it titanium titanium. Named by sources from the ancient myth of the West Prince Titan ( Titan ) , because he believes that super-strength titanium and ultra- refractory degree , working with the great Titan with shine .

Although titanium material in the Second ○ was discovered seven years ago , but due to refining process was not easy ( titanium is very easy to combine with oxygen ) , scientists have been unable to be refined into useful substances metals. Until 1938 , the company developed a new way to extract , plus magnesium reduction method, the red and gold reserves in the ground ore , after chlorination, plus magnesium , restore it sunrui titanium alloy pump and become a sponge titanium, to nineteen in 2043 , the company began producing a large number of titanium metal products.

Development of titanium frames

Titanium is a metallic chemical element , because the refining process is not easy, and less expensive titanium material production , it is only used in the early titanium aerospace science , marine science and other high-tech science and energy development . And daily necessities are to begin in 1965 applied to the titanium material .

The first titanium frame is in1980 someone invented the " rivet -like titanium frames " titanium welding is a very difficult material, there is no better way to do early connection handling , use rivets type of way to put it nailed together. While in 1981 , the plant began outside coated with a layer of nickel titanium material to facilitate welding. May compete with the growing manufacturing methods in the new market , the company in 1982 launched the sunrui titanium alloy sheets first day of the first pay full titanium metal frames around the world ; 1984 also has factories launched nickel titanium frames, there is a big price difference.

titanium check valve How to distinguish between pure titanium frame

How to distinguish between pure titanium frame

1 Check the weight.

2 Check magnetic reflection.

3 Check the hinge structure .

4 with a chemical reagent checked.

5 Test conductive index .

We can be a magnet placed on sunrui titanium tube the table , then leaned over the frame , if it is not generating the magnetic response of titanium frames . Also check its hinge , titanium glasses are placed two plastic or metal liner in the hinge , in addition , because of different metals with different electrical conductivity , so with conductive index can be measured whether the titanium metal .

Now consumers in addition to care about aesthetics , but also pay great attention to security , such as European countries have regulations, things come into contact with human skin items ( such as glasses , watches , necklaces , etc. ) , if necessary ingredient sunrui titanium alloy pump containing nickel marked . Because the nickel whites sometimes cause skin lesions or skin cancer , so manufacturers and stores have a duty to inform .

Titanium alloy valve There are two isomeric titanium crystals

Titanium is a titanium- based alloy by adding other elements

There are two isomeric titanium crystals : Below 882 ℃ for the close-packed hexagonal structure α titanium , titanium above 882 ℃ for the body-centered cubic β . Alloying elements according to their effect on the phase transition temperature sunrui titanium tube can be divided into three categories : ① stable α -phase , improving the phase transition temperature of the elements of α stabilizing element , aluminum , carbon, oxygen and nitrogen . Which aluminum is the main alloying elements titanium, improving its strength at room temperature and high temperature alloys , lower specific gravity, increased elastic modulus have a significant effect . ② stable β -phase, reducing the element of the phase transition temperature of β stabilizing element , and can be divided isomorphous and eutectoid two . The former molybdenum , niobium, vanadium, etc. ; latter chromium, manganese, copper, iron , and silicon. ③ small element of the phase transition temperature of the neutral elements , zirconium and tin .

Oxygen, nitrogen, carbon and hydrogen are the main impurities of titanium . Oxygen and nitrogen in the α phase has a greater solubility of the titanium alloy has a significant strengthening effect , but the plastic drop. Typically provide oxygen and nitrogen content of titanium in the 0.15 to 0.2% and 0.04 % to 0.05% or less , respectively . The solubility of hydrogen in the α phase is very small , titanium dissolved in excess hydride hydrogen will produce the alloy brittle. Titanium is usually controlled hydrogen content of 0.015% or less. The hydrogen dissolved in the titanium is reversible , vacuum annealing can be removed .

Titanium has high strength and density and small, good mechanical properties, good toughness and corrosion resistance. In addition , poor process performance titanium alloys , machining difficulties in thermal processing , and very easy to absorb hydrogen nitrogen carbon and other impurities. There are poor abrasion resistance , complex production process . Titanium industrial production began in 1948 . Requires the development of the aviation industry , the titanium industry with an average annual growth rate of about 8% growth. Currently the world's titanium alloy production reached 40,000 tons , nearly 30 kinds of titanium alloys . Is the most widely used titanium alloy Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and commercially pure titanium (TA1, TA2 and TA3).

Titanium is mainly used for the production of aircraft engine compressor components , followed by structure rockets, missiles and high-speed aircraft. Mid-1960s , titanium and its alloys have been in general industrial applications , electrodes for electrolysis industry production , power plant condensers , oil refineries and desalination heater and environmental pollution control devices. Titanium and its alloys have become a corrosion resistant structural materials. In addition, for the production of hydrogen storage materials and shape memory alloys.

China began in 1956, titanium and titanium alloys research ; sunrui titanium alloy pump mid-1960s and the development of industrial production of titanium into TB2 alloys.

Titanium is a new and important structural materials used in the aerospace industry , the proportion between the aluminum and steel , strength and temperature ranged , but has high strength and excellent resistance than seawater corrosion and ultra- low temperature performance. In 1950 the United States for the first time in the F-84 fighter-bombers used after the fuselage insulation panels, wind shield , tail cover other non- load-bearing components. 1960s began using parts from titanium alloy fuselage toward the rear of the fuselage , in part, to replace structural steel bulkheads , beams, rails and other important flap bearing components . The amount of titanium in military aircraft is increasing rapidly , reaching 20 % to 25% by weight of the aircraft structure . Since the 1970s , began extensive use of titanium civilian aircraft such as the Boeing 747 aircraft with a capacity of 3640 kg or more of titanium . Aircraft Mach number of less than 2.5 primarily to replace the titanium steel , to reduce structural weight . Again , the U.S. SR-71 high-altitude reconnaissance aircraft speed ( Mach 3 at an altitude of 26,212 meters ) , 93% titanium by weight of the aircraft structure , known as " all-titanium " aircraft . When the weight ratio of aircraft engines, increased from 4-6 to 8-10 , a corresponding outlet temperature from compressor 200 ~ 300 ° C to 500 ~ 600 ° C , the original plate is made of aluminum and the blades of the low pressure compressor must switch to titanium , or titanium instead of stainless steel plate and high-pressure compressor blades in order to reduce the structural weight . 1970s, the amount of titanium in the general aviation engines accounted for 20% to 30% of the total weight of the structure is mainly used in the manufacture of compressor components such as forged titanium fan, compressor discs and blades, cast titanium compressor casing , intermediate casing, bearing housing and so on. The main advantage of the spacecraft 's high- strength titanium alloy , corrosion resistance and low temperature performance to manufacture all kinds of pressure vessels, fuel tanks , fasteners, instrument straps, architecture and rocket shells. Sputnik , the lunar module , manned spaceship and space shuttles are also sunrui titanium alloy sheets using titanium plates welded .

Aerospace titanium castings Characteristics of titanium itself

Titanium what the benefits of the human body

Titanium has a " pro-biotic " ' sex . sunrui titanium tube In the human body , corrosion resistant and non-toxic secretions , have to adapt to any sterilization method . It is widely used in making medical devices, making artificial hip, knee, shoulder , flank joints, skull , active heart valves , bone clip. When a new packet in the annulus muscle " titanium -bone" , these titanium bone began to maintain the body's normal activities . Titanium is widely distributed in the body , the content of the normal body weight not exceeding 70kg per 15mg, its role is unclear. However, titanium can stimulate phagocytic cells, the immune system has been proven to enhance this role .

Characteristics of titanium itself has not the high hardness and light rust deterioration, resulting in a stable metal or metal allergies.

Titanium has a special current characteristics of the human body will produce beneficial physiological effects and its chemical stability, and will not produce the change or deterioration.

Titanium beneficial to humans , and quite safe , very fit body . Because titanium products will settle the current body , relieve muscle tension state, therefore, the spirit will get loose , will gradually relax the muscles , and improve athletic performance.

Titanium treatment principle

Titanium is a hard, rust security features , sunrui titanium alloy pump metal hypoallergenic . Is widely used in medicine and sports fields. This light metal has the ability to regulate the body's natural currents through cell ionization . Titanium has a special current characteristics of the human body will produce beneficial physiological effects and its chemical stability, will not produce the change or deterioration, beneficial to human health. Therefore, the use of titanium products can achieve mental relaxation, muscle relaxation, improve the effect . Increased body temperature , increased heat will relax the muscles and stimulate blood flow , increased blood flow helps your body better to remove blood from the effect of pain and fatigue factor . Effectively control the current disorder in the body . Pain and discomfort eliminate immediately . For bursitis , sciatica , headaches these types of arthritis and premenstrual syndrome have a significant role to alleviate short-term pain . By adjusting the current body to relieve muscle pain and stiffness, improve blood circulation. For these reasons , this product is subject to many Japanese marathon runners and athletes alike. Professional sports figures better reflect the movement of the flow rate , the faster the reflection time , and improve athletic performance .

In recent years, with the development of the electronics industry, has become a well-known germanium semiconductor material excellent . Scientists have recently discovered that it is not only the electronics industry "food " and singular role in human health , cancer, the cancer .

Germanium in the human body functions are manifold. First, because it has the dehydrogenation capacity , enabling the body to maintain adequate oxygen , thereby safeguarding human health. In humans, the decomposition is carried out by means of oxygen . Food decomposition process , need to consume oxygen , water and carbon dioxide while . Without sufficient oxygen , it is possible to make the body to cause disease. The human body can germanium hydrogen ions out of the body to reduce the demand for oxygen , which is conducive to health. Japanese scientists added dimethyl germanium oxide polymer in honey become popular health products.

The most attention is organic germanium ( Ge dicarboxyethyl trioxide ) anti-cancer effect. According to the study and practice has proved that organic germanium with the body's " waste" with the body and the blood vessel wall excess protein and cancer will be adsorbed , 20 to 30 hours later, with a "waste " of germanium, will automatically excreted from the body . Cancer patients the blood is hypercoagulable state , slowing blood flow velocity , cancer easily attached to the vessel wall , invasion and destruction of the vessel wall. Meanwhile, the blood viscosity, easy to form blood clots, wrapped up the cancer cells , the drug is difficult to work. Since organic germanium has a role in lowering blood viscosity , which can slow down the effect, have anti-cancer effects .

Pure germanium ( 99.999 %) of the function:

( 1 ) enhance immune function

( 2 ) regulation of blood pressure , blood lipids , blood glucose and other physiological functions.

( 3 ) the role of a wide range of cancer treatment .

( 4 ) with anti- carcinogen effect.

( 5 ) has a variety of disease prevention and health functions.

( 6 ) has significant anti-aging effects.

( 7 ) has a whitening cosmetic effect.

( 8 ) of germanium in metabolism , contains multiple Ge-0 bond , with strong oxidative dehydrogenation capacity. With human hemoglobin to ensure aerobic metabolism of cells. Since it set out to capture the negatively charged oxygen metabolites in atomic hydrogen , played the role of partial purify the blood , and therefore beneficial to patients with senile dementia rehabilitation .

Scientists pointed out that the human body functions such as metabolism, energy conversion , resistance to diseases, cardiovascular , nervous , reproductive and other functions , ge participation. Germanium in the traditional anti-aging medicine, such as high ginseng , Ganoderma lucidum , wolfberry content and believe anti-aging and pharmacological effects of ginseng , and germanium content related . After the 1970s , with the research results of clear , organic germanium , becoming " star shocked the world medical community ." Since it is no longer seen as a simple germanium semiconductor material . Germanium can be anti -virus, kill bacteria , strengthen the immune system , stimulate white blood cells, regulate cholesterol , for human health and enhance disease prevention to contribute .

Germanium is the first 32 elements , atomic weight 72.59 . Germanium has long been used in many areas of modern high-tech communications, computer , space development , energy use , and now found that germanium has hydrogen ions combine with the body the ability to discharge urine or sweat way to enhance the body of oxygen supply , accelerate metabolism and delay cell aging.

There are many physiological functions of germanium . So extend the life of laboratory animals is the most powerful anti-aging indicators . Experiments show that the amino acid germanium oxide can extend the life of fruit flies and the highest average life expectancy . Organic germanium metabolites sunrui titanium alloy sheets of anti-aging body's role , it is conducive to anti-aging.

Even a small amount of pure germanium , but also can enhance the body's energy production. It can improve the utilization of oxygen , can hypoxia, the damaged cells to regain control of their homeostasis . Basic and clinical cancer research organic germanium , have been widely reported abroad . Organic Germanium can induce cells to secrete interleukin and interferon, stimulate the host 's defenses against cancer

Germanium also has high whitening Beauty youthful effect can be made ​​from a variety of skin care products, during pregnancy or abnormal pigmentation caused by sun spots with aplomb scavenging effect , but also the treatment of acne , eczema and underarm odor .

Titanium precision castings Development of titanium sheet

 Development of titanium sheet
   High technology advances, the rapid development of the industry is not in another table . Recent sunrui Titanium precision castings high-tech materials are used are titanium sheet and high-tech ceramics , both have their different advantages.
    Table titanium alloy not only for skin allergies, and hard , good gloss . Her history with the development of stainless steel sheet is the same period , can be traced back in the 1950s .
    Titanium is not a rare metal , the nature of the content is very high , only ranked in the aluminum , sunrui titanium precision casting iron and magnesium. Compared with stainless steel table , it weighs more compact , but because the surface is very hard, that after a collision or other substances scratch is not easy to trace. Of course , its price will be relatively more expensive.