Titanium alloy is poor mechanical properties

Development needs of aero engine high performance led development leads the high temperature aerospace titanium castings, titanium alloy using the temperature gradually increased,from twentieth Century 50 to alloy as the representative, through to the alloy as the representative of the. At present, represents the international advanced high-temperature titanium alloy has USA, Britain, Russia and Chinese. Composition andperformance features of high temperature titanium alloy. Through research, the author thinks that the development direction of titanium alloy is mainly: (1) standardevaluation of fire retardant properties of aerospace titanium castings and method. Flame retardantperformance evaluation of titanium alloy right is one of the key techniques of flame retardant Titanium alloy sheet, including the simulation methods and detection technology of combustion ofaerospace titanium castings. At present, the flame retardant performanceevaluation method has no uniform standards, countries have adopted different methods to test. At present, the flame retardant performance evaluation method has no uniform standards, countries have adopted different methods to test. Flame retardant performance evaluation method of titanium alloy and therefore the formulation of a unified standard will effectively promote the national titanium alloyexchange. (2) increase the mechanical properties of titanium alloy plates. Compared with thetitanium alloy, titanium alloy is poor mechanical properties, low working temperature.Research on how to improve the mechanical properties of this alloy for deeper. (3)reduce the cost of titanium alloy. Titanium alloy containing large amount of noble metal elements of V, resulting in higher costs, limiting its application. The domesticscholars have studied to replace V with Mo part of low price.

Titanium and titanium alloy of high strength

The effect of the Titanium alloy valves in the pipeline is to prevent the backflow of fluid. Common use of more than a check valve in plumbing, exports more than installing the pump check valve, so that when the pump stops, the water pipeline will not turn the clock back; pump suction pipe head also has a check valve, so that it Sheung Shui can be maintained when the next start. Common spring-type check valve, lift and swing. Also used in the hydraulic check valve, the hydraulic system can maintain pressure. Titanium alloy sheet is usually installed in the export position of the pump. Titanium check valve, also known as check valves, determined according to the specific needs of the pipeline installation direction. If the installation location of the pipe is vertical, you can choose from spin type, pipeline. If the pipe is horizontal mounting position, you can choose the lift. Lift check valves open and close the fastest. Spin from the check valve of least resistance. Pipeline check valves are generally mounted on the clip-on approach in the majority, are not suitable for installation distance off place. titanium alloy sheets  widely used in various pump outlet pipe, extraction pipes, drains, and other media are not allowed back in the pipeline. Before the use of the titanium check valve is a pressure differential valve which automatically open and close the valve, it is the role of the medium flow in one direction only, and to prevent the reverse flow. According to their different structures, the check valve can be divided into lift (jump centripetal) and swing (roll plate) two. Lift check valve must be installed in horizontal pipelines, and make strict vertical axis of the valve in a horizontal plane, in order to ensure a flexible and reliable operation of the valve lift of. Swing check valve as long as the rotation pivot horizontally, can be installed in any horizontal, vertical or inclined pipeline.

Application and selection of titanium alloy valve

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 titanium sponge 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 alloy valves mainly using titanium metal material

Titanium valves and titanium alloy valve is the use of titanium metal materials in highly corrosive environments oxide film has good stability and self-passivation capability, this feature titanium valve to resist corrosion and strong variety of harsh conditions. Titanium valves can resist corrosion media environment, the key lies in the surface of the "blunt oxide film" chemical stability in corrosive media. Shanghai VINCI valve on the surface of titanium ion modification, anodizing and other scientific methods to ensure VINCI too valves in reducing medium corrosion resistance and surface hardness of quality assurance. Nickel and nickel titanium alloy valve Titanium alloy valve condition medium corrosion resistance targeted, high application cost, are widely used in chemical, petrochemical, metallurgical, nuclear, ocean development, power plants and other industrial fields pipelines desulfurization control system, to solve the general stainless steel and other metals, non-metallic materials corrosion problems can not be resolved titanium pumps to ensure the pipeline control titanium alloy valve in extremely harsh corrosive medium and long-term safe, reliable and stable operation. Shanghai VINCI valve production of nickel and nickel titanium alloy valve are: pure nickel valves, nickel-chromium alloy valves, nickel-copper alloy valves, nickel-molybdenum alloy valves, nickel-chromium-molybdenum alloy valves.

Modern superplastic deformation theory that grain boundary sliding is the titanium alloy pump main way of superplastic deformation

Modern superplastic deformation theory that grain boundary sliding is the main way of superplastic deformation, diffusion and dislocation motion inside the grain and the grain boundary is the main coordinating mechanism of grain boundary sliding. Superplastic forming of titanium alloy pump  B-phase diffusion creep or dislocation creep dominated: A phase to the grain boundary sliding-based, coordinated jointly by diffusion and bit dislocation motion; A and B are two phases flow to A and B phase boundary migration to complete. Hydrogen in the titanium alloy superplastic forming :( mainly plays a role in the following) was added to increase the Titanium precision castings diffusivity of hydrogen in the alloy elements, resulting in enhanced B-phase diffusion slip A creep and intergranular phase. (2) the diffusion of hydrogen activated dislocation pinning promote the climb and slide dislocations, improved sliding capacity of B grains, the coordinating role of dislocations in favor of A / A grain boundary sliding requested. (3) hydrogen-induced weak bond effect, reducing the diffusion activation energy, enhanced atomic diffusion capacity, titanium casting process improve the superplastic flow capacity. (4) the addition of hydrogen significantly reduces B \ A + B transition temperature, increase the volume fraction of the B phase, a direct result of the increase and decrease the flow stress of the plastic, so that the titanium alloy can be deformed at a lower temperature and higher deformation rates were superplastic forming.

After pouring liquid metal into the runner must maintain the continuity of the metal flow

After pouring liquid metal into the runner must maintain the continuity of the metal flow, the middle can not stop there. So we must pay great attention to the runner to select the size of the design and the electromagnetic pump and current values.Magnetic pump should be titanium alloy pump placed as far as possible at the level of the runner, but this system can reduce the consumption of casting metal.Used as pharmaceutical and food and other uses of the heat exchanger. Due to the strong corrosion resistance of titanium, the heat exchanger so long life, and maintenance costs, in use, is also less. In addition, because of its small size, large heat capacity, etc., related equipment (eg pumps) of investment and operating costs can also be titanium pumps reduced accordingly.Of commercially pure titanium is widely used in all kinds of seafood farming, water heat exchanger, brine heat, chemical, food, pharmaceutical, metallurgy, refrigeration, light industry.

Artificial kidneys using a micro titanium heat pumps

Medical Applications : biocompatibility TiNi alloy good use of its shape memory effect and superelasticity medical instances considerable . If the filter thrombosis , spinal titanium casting companies orthopedic rods, tooth orthopedic wire, cerebral aneurysm clips, plates , intramedullary nail , titanium heat pumps artificial joints, contraceptive devices , cardiac repair components, artificial kidneys using a micro- pumps. Tech applications Outlook: The 20th century was the era of mechanical and electrical science . Sensing - IC - driving is the most typical mechanical and electronic control Titanium precision castings  but the complexity and huge . Shape memory materials both sensing and driven dual function , the control system can achieve miniaturization titanium heat pumps and intelligent robots such as holograms , ultra- millimeter micro robots. The 21st century will be the titanium heat pumps era of e- learning materials . Action shape memory alloy robot Titanium alloy sheets addition to temperature conditions without any environmental impact is expected in high-tech fields reactors, accelerators , space laboratories flourish. Memory alloy spoke alloys, of course, talk about the titanium heat pumps most interesting alloys - memory alloy . Metal has a memory , an accidental discovery.

Titanium and titanium alloy pump foundry in magnetic

Improve the liquid metal is poured into the mold but also by the pressure of the electromagnetic force to the liquid metal up to achieve this is to magnetic casting. Its basic principle is the magnetic titanium alloy pump installed in the runner through titanium casting process the outer liquid metal to create a magnetic field; while the DC also introduced into this already established metal flow field, in the alternating magnetic field and electric field, forming a liquid metal flow of the same direction and the electromagnetic force, thereby increasing the pressure of the liquid metal filling the mold. This approach allows the flow rate of the metal in the cavity only by the titanium alloy pump flow rate of the sprue in the ram effect of the titanium alloy pump metal is increased from 2 to 2.5 times higher than the stationary casting. When using this method has several casting should be noted:
1 After pouring liquid metal into the runner must maintain the continuity of the metal flow, the middle can not stop there. So we must pay great attention to the runner to select titanium pumps the size of the design and the electromagnetic titanium alloy pump and current values.
2 magnetic titanium alloy pump should be placed as far as possible at the level of the runner, but this system can reduce the consumption of casting metal.

Industrial applications of the titanium pump

Industrial applications: ( 1 ) the use of one-way shape memory effect of a one-way shape recovery . Such as pipe fittings, antenna , rings and so on. ( 2 ) extrinsic two-way memory recovery. Namely the use titanium alloy casting of one-way shape memory effect and lifting to do with the titanium pump temperature outside help repeated actions, such as heat-sensitive components, robots, terminals , etc. ( 3 ) intrinsic two-way memory recovery. Namely the use of two-way memory effect with temperature titanium alloy pump elevating do repeated actions, such as heat engines , thermal components. But such applications titanium pump faster memory decay , poor reliability , not titanium pump commonly used. ( 4 ) ultra- flexible application . Such as springs , terminal, eyeglass frames and so on. Medical Applications : biocompatibility TiNi alloy good use of its shape memory effect and superelasticity medical instances considerable . If the filter thrombosis , spinal orthopedic rods, titanium alloy casting tooth orthopedic wire, cerebral aneurysm titanium pump clips, plates , intramedullary nail , artificial joints, contraceptive devices , cardiac repair components, artificial kidneys using a titanium pump.Tech applications Outlook: The 20th century was the era of mechanical and electrical science . Sensing - IC - driving is the most typical mechanical and electronic control systems, but the complexity and huge .

Titanium heat pumps due to metal ion loss is not easy

Industrial pure titanium compounds can be widely used in the alkaline solution, and a medium such as saline solution, and the reaction occurs with difficult, excellent corrosion resistance; inorganic titanium at room temperature lower concentration of hydrochloric acid, sulfuric acid, nitric acid and the like having good corrosion resistance; but with increasing titanium heat pumps concentration of the medium and titanium casting factory the operating temperature, easy and the industrial pure titanium chemical reaction of the inorganic acid, so that a reduction in corrosion resistance titanium heat pumps of titanium, therefore, it should be noted in the process of heat transfer medium and the concentration of temperature; industrial pure titanium at room temperature for formic acid, oxalic acid, lactic acid and other organic acid has good titanium heat pumps corrosion titanium alloy pump resistance. Titanium heat pumps is not easy due to the loss of metal ions, it is possible to take advantage of this non-magnetic characteristics, used as pharmaceutical and food and other uses of the heat exchanger. Due to the strong corrosion resistance of titanium, the heat exchanger so long life, and maintenance costs, in use, is also less. In addition, because of its small size, large heat capacity, etc., related equipment (eg pumps) of investment and operating Titanium alloy sheets costs can also be reduced accordingly. Titanium heat pumps with the excellent properties of commercially pure titanium is widely used in all kinds of seafood farming, water heat exchanger, brine heat, chemical, food, pharmaceutical, metallurgy, refrigeration, light industry, electroplating industry, aluminum oxide tank, salt, paper, ultrasonic, electronic communication, central heating and other industries and fields.

Titanium pump is reflected in the various experiments

Titanium and titanium pump in dry chlorine, even at below 0 ℃ will react violently to generate titanium tetrachloride, and a fire hazard. Titanium and titanium alloys pump in a dry chlorine in the destruction begun, the reaction is the collapse of, then add the water can not stop the reaction. titanium pump chlorine on dry, wet behavior is not yet fully understood precinct, noted in the thermodynamic analysis, titanium pump, and chloro can exist in equilibrium at room temperature, shows the thermodynamic free energy to produce a stable compound of titanium tetrachloride in the reaction system coexist with water, further reaction, i.e. Thus, on reaction of chlorine and titanium pump can be made simple explanation: titanium chloride to titanium pump tetrachloride will be generated: the titanium tetrachloride at room temperature and is a liquid having a boiling point of 136. C, the titanium alloy casting tetrachloride is generated accompanied by exothermic reaction. If the chlorine gas in the dry state, the release of large amounts of heat to the reaction reaches a high temperature, when the temperature reaches the melting point of titanium pump, titanium pump starts to burn. Thereafter, as long as there is enough in chlorine, the reaction will be intense until the reactants consumed. However, if there is enough water in the chlorine gas, the Titanium alloy sheets tetrachloride reacts with water to produce hydrogen will be titanium, which is a non-volatile substance, and become firmly attached to the surface of a film of titanium, this reaction is extremely stable reaction, and the surface film in a wet chlorine is extremely stable. Thus Titanium has excellent corrosion resistance in wet chlorine, chlorine gas is closely related to its stability in water content.

Titanium and titanium alloy pump pressure casting

Pressure casting to reduce machining precision casting, precision casting blank so close to finished product forming method of the most promising, especially as titanium and titanium alloy pump this difficult titanium pumps and expensive metal. Early in the development of titanium alloy precision casting there are people who want to use this method to produce titanium alloy pump, but because of the technical level and limited conditions, this idea can not be achieved. After titanium casting research effort of a few years, the former Soviet Union in the study of titanium alloy pump technology has solved some problems: the vacuum device is built in the press (melting in vacuum chamber and vacuum die casting room); found some possible new heat-resistant material cast member pressure casting and die casting machine; successful Titanium alloy sheet research can ensure to superheat and each batch of metal can be special melting process precise ingredients.Uniform crystal structure, can be directly processed under the procedures. This not only greatly improve the yield, reduce scrap loss, and the product quality is also greatly improved.

Titanium heat exchanger is a passing cold fluid heat transfer equipment

Titanium heat exchanger is a high quality titanium tubing by hot fluid will be part of the heat transfer to the cold fluid heat transfer equipment. With the many advantages of titanium heat exchanger industrial pure Titanium investment castings  chemical, petroleum, power, food and many other common devices in the industrial sector, plays an important role in production. In practice, the effect of heat transfer materials and process characteristics with heat exchanger has a great relationship. Material in the enrichment process, the solute or the impurity is often deposited on the surface during the heating, while the formation of the scale layer to precipitate crystals, the impact of heat; some solutes are heat-sensitive, long residence time at high temperature of perishable; some corrosive material having a Titanium castings large higher viscosity or the like. Titanium heat exchanger made ​​of high quality titanium tubing. On the physical properties of titanium tube with a light weight, superior mechanical properties, and other advantages. The big strength of titanium, titanium tensile strength of up to 180kg / mm2. Some higher strength steel alloys, but the titanium strength (tensile strength and density ratio) is more than high-quality steel. In addition, titanium alloy casting has good heat intensity, low-temperature toughness and fracture toughness. Chemical properties of the titanium exhibit good stability in a variety of industrial solutions have good corrosion resistance. Titanium is an excellent industrial refrigeration equipment accessories materials.

Corrosion resistance of titanium and titanium alloys pump than other common metals

Titanium and titanium alloy pump in the wet chlorine gas corrosion resistance than other common metals, this is because with a strong oxidizing action of chlorine, Titanium castings and titanium alloy pump can be in wet chlorine stable passive state, in order to maintain the chlorine in the titanium obtuse nature, requires a certain moisture content. Critical moisture and oxygen pressure, flow rate, temperature and other factors, but also with the shape and size of titanium and titanium precision casting equipment or machinery parts related to the degree of damage to the surface, therefore, the literature on critical water content of titanium in oxygen passivation is inconsistent is generally believed that the mass fraction of 0.01% to 0.05% titanium in oxygen as the critical water content, but the actual experience that in order to ensure the safe use of aerospace casting equipment in oxygen, and sometimes the water mass fraction of 0.6% also enough, requiring up to 1.5%. Critical water content also varies with temperature and air velocity chlorine decrease increase accordingly. Actual operating experience also shows that the surface oxide film of titanium and titanium alloy pump destroyed, requiring a higher water content in order to make re-passivation of titanium and titanium alloy pump.

Titanium alloy pump special considerations

Import and export operation rights and have the right to operate cross-border trade enterprises are not allowed to import or import agent titanium alloy pump scrap ,scrap titanium alloy pump,titanium alloy scrap ,titanium alloy pump once discovered ,is handled by the foreign trade department according to relevant regulations ,the circumstances are serious business ,cancel or suspend its right to operate import and export business.To titanium ,titanium alloy pump product catalog to include Titanium castings statutory inspection by the State Administration for Entry for the implementation of the statutory inspection of imported titanium , do not ban the import of compliant products .Enterprises for the production of titanium production license system , the quality and technical supervision departments providers nonferrous metals industry management department of the existing producers of titanium alloy sheets titanium production licenses issued . Unlicensed businesses and individuals are not allowed to production and processing of titanium and its products .

Titanium alloy development at an alarming rate

As the representative of the United States Bureau of Mines research and production facilities for titanium casting technology in-depth research, development of the melting and titanium precision casting process is suitable for titanium , which is a low-cost processing and forming of titanium alloys opened up a new path. As a method of casting forming complex shapes can be directly manufactured parts eliminates a lot of the subsequent titanium alloy pump processing steps , thus increasing material utilization and reduce manufacturing costs. According to statistics, titanium forgings material utilization is Titanium sheets generally not more than 20 %, while the common titanium alloy casting material utilization is 50% , for precision casting is as high as 70% or more , which can be seen the great potential of titanium alloy casting .

Titanium pump in wet chlorine corrosion resistance than other common metals

Titanium and titanium alloys in the wet chlorine gas corrosion resistance than other common metals, this is because with a strong oxidizing action of chlorine, titanium pumps and titanium alloys can be in wet chlorine stable passive state, in order to maintain the chlorine in the titanium obtuse nature, requires a certain moisture content. Critical moisture and oxygen pressure, flow rate, temperature and other factors, but also with the shape and size oftitanium alloy and titanium equipment or machinery parts related to the degree of damage to the surface, therefore, the literature on critical water content of titanium in oxygen passivation is inconsistent is generally believed that the mass fraction of 0.01% to 0.05% titanium alloy pump in oxygen as the critical water content, but the actual experience that in order to ensure the safe use of titanium equipment in oxygen, and sometimes the water mass fraction of 0.6% also enough, requiring up to 1.5%. Critical water content also varies with temperature and air velocity chlorine decrease increase accordingly. Actual operating experience also shows that the surface oxide film of titanium and titanium alloys destroyed, requiring a higher water content in order to make re-passivation of titanium and titanium alloys.

Titanium pump, use and performance of titanium alloy pump

Titanium pump, titanium alloy pump is a kind of strong corrosion resistant pump, suitable for alkali acid alkali acid pump, so it is called. Corrosion characteristic of the strong, the key lies in the metal titanium. The following are the titanium and titanium alloy material corrosion property, knew titanium pump, titanium alloy pump can use the occasion and effect. Titanium belongs to the precious metal, its relative low density, high strength, high strength ratio. There are in a particular environment and excellent corrosion resistance. Titanium alloy after after, can make its strength greatly increased (the most widely used is the TC4). (1) such as Titanium alloy valves and titanium alloy corrosion resistance of titanium material has a high degree of stability in the oxide solution, neutral or weak acid, HgC1: titanium and titanium alloy at 100 ℃ FeCl100 ℃, 100 ℃ (CuC 12 all concentration) are stable in all concentrations of NaCl, 60% AlCl2 and 100 ℃ in many other metals, titanium oxide, is stable at two oxygen ethanoic acid 100% Phenoxy Acetic Acid and 100%, so that the titanium and titanium alloy have been widely used in the solution. Titanium and titanium alloy has high stability for the oxidant solution containing ions, such as 100qC hypo sodium chlorate solution, oxygen water, gas (75 ℃), the sodium hydroxide solution containing hydrogen peroxide. Titanium and titanium alloy corrosion resistance in the wet chlorine gas than other commonly used metal, this is because the chlorine with strong oxidation, titanium and titanium alloy are stable passive in the wet chlorine, in order to maintain the blunt titanium in chlorine, need certain moisture content. The relevant factors of the critical water content and oxygen pressure, velocity, temperature, and the titanium equipment or parts of the shape and size as well as mechanical damage on surface of Titanium alloy sheet  therefore, is generally believed that the critical moisture content on the passivation of titanium in oxygen in the literature is inconsistent,, mass fraction is 0.01% ~ 0.05% can be used as the critical moisture content of titanium in oxygen, but the actual experience, in order to ensure the safe use of titanium equipment in oxygen, and sometimes the water content of 0.6% is not enough, need to be as high as 1.5%. The critical moisture content also increased with increase of temperature and air speed reducing chlorine increased. The actual operation experience also shows that, the oxide film on the surface of titanium and titanium alloy after the destruction, require a higher water content to make titanium and titanium alloy passivation again.

Vacuum titanium pump works

The core of the operation of the vacuum booster is: In the non-operation state, the control valve plunger return spring to push the valve rod locking position of the locking tab to the right, the vacuum port is open the check valve, the control valve spring make contact with the air control valve seat cup confidential, thus forcing the air valve port official. When titanium pump raking, the brake pedal, the pedal force is amplified by the leverage effect on the control valve putter. First, the control valve return spring is compressed putter, putter along with the air control valve spool move forward. When the titanium alloy pump pre-control valve pushrod cup position when you move the control valve and the vacuum check valve seat in contact with the vacuum check valve port closed. Titanium pump the female power supply is high, the no-load output voltage between 3 to 7KV, but the load current, the output voltage is reduced to about 400V, Titanium sheet can flow through the anode and cathode discharge current drawn reflect the space vacuum. Therefore, the pump power can be reflected titanium pump by the ion pressure and size. So it degassing principle what is it: 1, active gas extraction. 2, the hydrogen extraction. 3, inert gas extraction.

The structure and the type of titanium pump

Titanium pump, is in equipment manufacturing material, which has the use of titanium and titanium alloy corrosion, the proportion of small, high strength, goodcomprehensive mechanical performance at high and low temperature characteristics,flow components, in the impeller and the packing seal node used in the manufacture of titanium or titanium alloy. The pump has excellent corrosion resistance, resistance to most organic acid, inorganic acid, organic compounds and alkali, salt solution corrosion, is suitable for the transport of solid particles, easy crystal medium,especially for long period operation, improve economy. To overcome the shortage ofpacking and mechanical seals, has the advantages of simple structure, reliablesealing, but also a fundamental solution of packing seal, packing is easy to wearsleeve. Now widely used in soda, salt making, metallurgy and petrochemical industry.A corrosion resistant pump. That made of titanium ortitanium alloy pump with contactand was sent to the liquid parts. Chemical titanium or titanium alloy pump is centrifugal pump. Can be used for conveying a variety of organic and inorganic corrosive liquid,especially suitable for transporting chlorine salt solution, can not convey the fuming nitric acid, hydrofluoric acid, hydrochloric acid concentration >30%. Titanium and Titanium alloy sheets prices more expensive, generally do not only in corrosion resisting pump other material under the condition of application. Titanium or titanium alloycentrifugal pump is generally casting and welding system, the flow rate of 5.7 ~400m3/h, 4 ~ 125m lift. According to the working principle of titanium pump, also known as the sputtering ion pump. Titanium pump can be divided into diode andtriode, triode type may increase the argon (Ar) pumping speed. Structure of dipolartype titanium pumps as shown in the diagram, a lot of anode A thick 0.1~0.3mm,stainless steel cylinder components of 12~40mm diameter, the anode ends with Kthick 1~3mm titanium cathode. The cathode and anode tube axis perpendicular to the surface, plus 3~7KV voltage between the two, uniform axial magnetic field and anode tube of 1000~3000 Gauss.

Titanium pump, performance and the use of titanium alloy pump

The work flow of heat pump water heater is low pressure refrigerant compressor will return after compression, high temperature and high pressure gas into the discharge, high temperature and high pressure refrigerant gas through the winding in the water tank outside the copper pipe, the copper heat conduction to the water tank, coolant cooling down in the pressure continued with into a liquid, enters the evaporator after expansion the valve, the evaporator pressure is suddenly reduced, so the rapid evaporation of liquid refrigerant in a gaseous, and absorb a lot of heat. At the same time, under the action of the fan, the air flow through the evaporator outer surface of large, air absorption of energy is the evaporator, air temperature decreases rapidly, into the cold air release. Then the refrigerant absorbs some energy back to the compressor, and enter the next cycle.

Air source heat pump water heater can heat energy in the air to absorb, and into high temperature heat energy inside the machine, and then water heating, energy-saving air source heat pump water heater is, and the efficiency is very high.

Air source heat pump is the product of one of the world's most advanced energy utilization. With the rapid development of economy and the improvement of people's life quality, living hot water has become one of the necessities of life, however, the traditional water heater (electric water heater, fuel, gas water heater) with high energy consumption, high cost, pollution; and the energy saving and environmental protection type solar water heater can restrict the operation and by the weather conditions. The solar water heater and traditional heating principle of air source heat pump is very different, air source heat pump with air, water, solar energy and other low temperature heat source, air source heat pump powered by energy absorbing heat from the cold side to heat water, hot water through the circulatory system directly to the user as the hot water supply or the use of fan coil for small area heating.

Air source heat pump is the school dormitory, hotel, bath center and other places of the big, in, small water supply systems focus on the best solution. titanium plate is in equipment manufacturing material, which has the use of titanium and titanium alloy corrosion, the proportion of small, high strength, good comprehensive mechanical performance at high and low temperature characteristics, flow components, in the impeller and the packing seal node used in the manufacture of titanium or titanium alloy. The pump has excellent corrosion resistance, resistance to most organic acid, inorganic acid, organic compounds and alkali, salt solution corrosion, is suitable for the transport of solid particles, easy crystal medium, especially for long period operation, improve economy. To overcome the shortage of packing and mechanical seals, has the advantages of simple structure, reliable sealing, but also a fundamental solution of packing seal, packing is easy to wear sleeve. Now widely used in soda, salt making, metallurgy and petrochemical industry. Titanium pump, Titanium alloy sheets is a kind of strong corrosion resistant pump, suitable for alkali acid alkali acid pump, so it is called. Corrosion characteristic of the strong, the key lies in the metal titanium. Titanium alloy after after, can make its strength greatly increased. Titanium and titanium alloy corrosion resistance of titanium material has a high degree of stability in the oxide solution neutral or weak acid, the actual operation experience also shows that, the oxide film on the surface of titanium and titanium alloy after the destruction, require a higher water content to make titanium and titanium alloy passivation again.

Titanium and titanium alloy pump in dry chlorine gas, even at 0 ℃ will react violently to generate four titanium chloride, and a fire hazard. Titanium and titanium alloy in dry chlorine gas in the destruction of the reaction is, collapse, then adding water can not stop the reaction.

A dry, wet chlorine titanium in the boundary behavior is not fully understood, according to the thermodynamic analysis, titanium and chlorine in the equilibrium state at room temperature can not, according to the thermodynamic free energy can generate stable compounds, four titanium chloride and water does not exist in this reaction system, will further reaction.‍