Titanium plate because of its high strength, heat resistance, corrosion resistance, widely applied in industry. Particularly in the aviation,aerospace, shipbuilding and other industries, mostly used in the manufacture of titanium alloy key components, its performance is good or bad often determine the level of the product. Thus, national research institutions put a lot of manpower, material and financial resources and its alloy smelting equipment, forming process research and development, writing thousands of articles and many monographs. However, studies with the process of melting Sensor
Titanium housing rarely, limited research has confined tested. Because of its high melting point alloy, chemical activity, the difference between the thermal properties of elements big, so the process of melting the melt composition and temperature control is very difficult, and the melt composition and temperature directly determines the quality of the titanium alloy. So find out the qualitative and quantitative variation of the melt composition, temperature and process parameters, the alloy itself between thermal parameters, important for guiding alloy melting practice, smelting practice for
other alloys also have important reference value.
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2015年6月25日星期四
Titanium oxide of information
1. titanium starting sheet is equivalent to a surface oxide film are durable with good hair separating agent, titanium starting sheet saves separating
agent, make easy peeling plates, eliminating the process of starting sheet pretreated titanium species board lighter than copper seed plate half.
2. titanium starting sheet is more than three times the life of the copper seed plate, depending on the operating conditions of up to 10-20 years
3. titanium copper crystal structure of the starting sheet preparation dense, smooth surface, good quality.
4. As the Titanium sheet metal species sheet without smearing separating agent, and thus avoid contamination copper electrolyte.
5. The increase productivity to reduce copper production costs, thus a better economic efficiency.
agent, make easy peeling plates, eliminating the process of starting sheet pretreated titanium species board lighter than copper seed plate half.
2. titanium starting sheet is more than three times the life of the copper seed plate, depending on the operating conditions of up to 10-20 years
3. titanium copper crystal structure of the starting sheet preparation dense, smooth surface, good quality.
4. As the Titanium sheet metal species sheet without smearing separating agent, and thus avoid contamination copper electrolyte.
5. The increase productivity to reduce copper production costs, thus a better economic efficiency.
2015年6月22日星期一
Titanium manufacturing process
titanium plate for aerospace in the rolling process carried out above the recrystallization temperature.
Cold-plastic deformation temperature lower than recovery temperature of the rolling process.
Annealing: The metal was slowly heated to a temperature sufficient to keep time, and then cooling at an appropriate rate (usually slow cooling, and sometimes controlled cooling) a metal heat treatment process.
Pickling: immersed in an aqueous solution of sulfuric acid and other parts, titanium metal surface to remove oxides and other films. Pre-treatment or intermediate processing plating, enamel, rolling and other technology
Cold-plastic deformation temperature lower than recovery temperature of the rolling process.
Annealing: The metal was slowly heated to a temperature sufficient to keep time, and then cooling at an appropriate rate (usually slow cooling, and sometimes controlled cooling) a metal heat treatment process.
Pickling: immersed in an aqueous solution of sulfuric acid and other parts, titanium metal surface to remove oxides and other films. Pre-treatment or intermediate processing plating, enamel, rolling and other technology
2015年6月19日星期五
Titanium features
1. The surface of the titanium oxide film equivalent of a good durable wear separating agent with the hair, using a titanium plate to save the species separating agent, so that the plate peeling easier, eliminating the process of starting sheet pretreated titanium starting sheet lighter than copper seed plate half.
2. titanium starting sheet is more than three times the life of the copper seed plate, depending on the operating conditions of up to 10-20 years
3. titanium copper crystal structure of the starting sheet preparation dense, smooth surface, good quality.
4. As the Titanium tube fittings without smearing separating agent, thus to avoid contamination copper electrolyte.
5. The increase productivity to reduce copper production costs, thus a better economic efficiency.
2. titanium starting sheet is more than three times the life of the copper seed plate, depending on the operating conditions of up to 10-20 years
3. titanium copper crystal structure of the starting sheet preparation dense, smooth surface, good quality.
4. As the Titanium tube fittings without smearing separating agent, thus to avoid contamination copper electrolyte.
5. The increase productivity to reduce copper production costs, thus a better economic efficiency.
2015年6月16日星期二
Titanium substrate pretreatment:
Surface titanium oxide film is formed easily purified, its conductivity is poor, and titanium in the process easily contaminated with oil, will lead to the conductivity of Grade 9 Titanium components decreases, resistance increases, while the coating with the titanium can not plate surface closely. Therefore, in order to improve the conductivity of the electrode, the bonding coating and substrate more closely, and in order to remove stains produced during machining titanium, etc., to ensure that telephone and coating properties of the active electrode, titanium substrate make the necessary pre- deal with.
2015年6月11日星期四
Physical treatment titanium surface:
180 The purpose sandpaper edge effect size of 70mm × 30mm × 2mm edge portion of titanium mill sleek, eliminate electrode.
The purpose spun yarn with 600 paper surface polished shiny titanium, titanium oxide surface to make completely removed.
Objective 120 grit sanding cloth in two directions perpendicular to each other, the lower end of the main electrode grinding area 30mm × 30mm (organic matter degradation occurs mainly in the region), the purpose is to increase the surface roughness of Powder coating titanium, to improve its mechanical adhesion, polished titanium substrate surface in the form cavities, the coating of the electro-catalytic activity of the oxide have a special attachment to fit in the hole in force, thereby enabling the coating on the substrate is attached closer to prevent coating off.
The purpose spun yarn with 600 paper surface polished shiny titanium, titanium oxide surface to make completely removed.
Objective 120 grit sanding cloth in two directions perpendicular to each other, the lower end of the main electrode grinding area 30mm × 30mm (organic matter degradation occurs mainly in the region), the purpose is to increase the surface roughness of Powder coating titanium, to improve its mechanical adhesion, polished titanium substrate surface in the form cavities, the coating of the electro-catalytic activity of the oxide have a special attachment to fit in the hole in force, thereby enabling the coating on the substrate is attached closer to prevent coating off.
2015年6月9日星期二
Titanium plate fixed tube sheet heat exchanger design
With the continuous development and equipment manufacturing increasing levels of chemical production, due to the titanium corrosion resistance, high strength, and titanium surface is not easy to scale, etc., titanium fixed tube plate heat exchanger applications increasingly more widely. Titanium plate fixed tube heat exchanger design and carbon steel or stainless steel fixed tube sheet heat exchanger design is there is a difference.
In the design of titanium heat exchanger before, we must first understand the performance characteristics of Titanium Sheet under. Commercially pure titanium and titanium alloys can be welded between themselves or each other, but not with other metals welding; thermal conductivity of titanium is small, high melting point, the melting of titanium with greater mobility, therefore, blunt its welded joints side gap is smaller than the other metals; titanium poor impact toughness and fracture resistance, and thus to maintain the connection in the design and structure of the weldability is poor, so that in the design of the cartridge to maintain connectivity smooth weld structure, as far as possible avoid stress concentration; drilling and tapping titanium is difficult, therefore, should be designed to avoid too long a blind hole or through hole, and avoid as much as possible than tapping on the device; titanium sensitive to the gap higher, in the design of parts, the surface must be smooth, does not allow the presence of scratches and other surface defects, must be penetration weld butt joint, the surface should be smooth; titanium narrow range of plastic deformation, and a clear work hardening, so bending and flanging titanium parts usually large bending radius (bending radius not less than 4-5 times the thickness), with a smaller rate when expanding expanding.
For critical selection process titanium heat exchanger, carbon steel and stainless steel heat exchanger shell side Regardless of corrosive media or take the tube to affect the entire manufacturing difficulties and costs are not too large. But for the titanium heat exchanger is not the same, in general, try to let go tube corrosive media, so we can use the tube plate titanium tube titanium composite board or liner board, while the shell can be used carbon steel or stainless steel. not only reduces the titanium material consumption, cost savings, but also reduces the production of the difficulty.
In the design of titanium heat exchanger before, we must first understand the performance characteristics of Titanium Sheet under. Commercially pure titanium and titanium alloys can be welded between themselves or each other, but not with other metals welding; thermal conductivity of titanium is small, high melting point, the melting of titanium with greater mobility, therefore, blunt its welded joints side gap is smaller than the other metals; titanium poor impact toughness and fracture resistance, and thus to maintain the connection in the design and structure of the weldability is poor, so that in the design of the cartridge to maintain connectivity smooth weld structure, as far as possible avoid stress concentration; drilling and tapping titanium is difficult, therefore, should be designed to avoid too long a blind hole or through hole, and avoid as much as possible than tapping on the device; titanium sensitive to the gap higher, in the design of parts, the surface must be smooth, does not allow the presence of scratches and other surface defects, must be penetration weld butt joint, the surface should be smooth; titanium narrow range of plastic deformation, and a clear work hardening, so bending and flanging titanium parts usually large bending radius (bending radius not less than 4-5 times the thickness), with a smaller rate when expanding expanding.
For critical selection process titanium heat exchanger, carbon steel and stainless steel heat exchanger shell side Regardless of corrosive media or take the tube to affect the entire manufacturing difficulties and costs are not too large. But for the titanium heat exchanger is not the same, in general, try to let go tube corrosive media, so we can use the tube plate titanium tube titanium composite board or liner board, while the shell can be used carbon steel or stainless steel. not only reduces the titanium material consumption, cost savings, but also reduces the production of the difficulty.
2015年6月7日星期日
Titanium forming mode
Cold Forming: plasticity in reply below the temperature of formation, deformation hardening process will occur, it will help improve strength and surface quality of the metal for the manufacture of semi-finished products.
Thermoforming: plasticity performed above the recrystallization temperature molding, hardening during deformation have both recrystallization, and hardening was recrystallized completely eliminated. Mechanical performance, small deformation force, large deformation or semi-finished products for the manufacture of wool culture.
Warm Forming: above and below the recrystallization temperature reply within a temperature range of plastic molding, there is hardening agent recovery phenomenon, but no recrystallization. High strength, poor semi-finished plastic parts or semi-manufactured for.
Cold forming: In general, Titanium sheet metal is used only for cold forming molded shape and deformation of simple uncomplicated words, such as pillars, gusset and gentle curvature of the skin, such as profiles. Singles of small sheet metal parts common cold roll forming a radian; hyperbolic degree gentle skin temperature can be used under the usual skin stretch forming machine forming.
Thermoforming: plasticity performed above the recrystallization temperature molding, hardening during deformation have both recrystallization, and hardening was recrystallized completely eliminated. Mechanical performance, small deformation force, large deformation or semi-finished products for the manufacture of wool culture.
Warm Forming: above and below the recrystallization temperature reply within a temperature range of plastic molding, there is hardening agent recovery phenomenon, but no recrystallization. High strength, poor semi-finished plastic parts or semi-manufactured for.
Cold forming: In general, Titanium sheet metal is used only for cold forming molded shape and deformation of simple uncomplicated words, such as pillars, gusset and gentle curvature of the skin, such as profiles. Singles of small sheet metal parts common cold roll forming a radian; hyperbolic degree gentle skin temperature can be used under the usual skin stretch forming machine forming.
2015年6月5日星期五
Titanium Pipe Grade
Light titanium tube weight, high strength, excellent mechanical properties. It is widely used in heat exchange equipment, such as a tube heat exchangers, plate heat exchanger tube, snake tube heat exchangers, condensers, evaporators and transportation pipelines. Currently, many nuclear power industry of titanium tube as a unit standard pipe.
Titanium pipe execution in accordance with different requirements and performance of the two national standards: GB / T3624-1995 GB / T3625-1995 ASTM 337 338
Supply grades: TA0, TA1, TA2, TA9, TA10, BT1-00, BT1-0, Gr1, Gr2
Supply specifications: diameter φ4 ~ 114mm
Δ0.2 ~ 4.5mm thickness
Length of 15m or less
Titanium pipe execution in accordance with different requirements and performance of the two national standards: GB / T3624-1995 GB / T3625-1995 ASTM 337 338
Supply grades: TA0, TA1, TA2, TA9, TA10, BT1-00, BT1-0, Gr1, Gr2
Supply specifications: diameter φ4 ~ 114mm
Δ0.2 ~ 4.5mm thickness
Length of 15m or less
2015年6月2日星期二
Titanium and titanium tube welded pipe common defects and precautionary measures
Titanium equipment is mainly used in petroleum, chemical, and thermal power plants and other industrial sectors. The titanium fittings (such as elbows, tees and reducers, etc.) is connected to the tube is an important part. According to several surveys, titanium equipment (due to their special performance. Used widely) in connection with the pipe fittings high accident rate, which is where the steep section of the working conditions change. More serious stress related.
Materials Welding Defect Analysis
Performance and Features
Allotrope titanium transition occurs at 885 ℃. In the following 885 ℃ is hcp lattice structure, called a titanium (commercially pure titanium as such, this paper focuses on the object). More than 885 ℃ for the body-centered cubic lattice structure called J3 titanium. With elements of heterogeneous transition temperature titanium alloy alloying elements are added with the type and content varies. Commercially pure titanium according to its impurities (mainly oxygen and iron) content and the intensity differences arising therefrom into TA1, TA2, TA3 three grades. They have good corrosion resistance, ductility and toughness, but its workability, high weldability requirements.
Materials Welding Defect Analysis
Performance and Features
Allotrope titanium transition occurs at 885 ℃. In the following 885 ℃ is hcp lattice structure, called a titanium (commercially pure titanium as such, this paper focuses on the object). More than 885 ℃ for the body-centered cubic lattice structure called J3 titanium. With elements of heterogeneous transition temperature titanium alloy alloying elements are added with the type and content varies. Commercially pure titanium according to its impurities (mainly oxygen and iron) content and the intensity differences arising therefrom into TA1, TA2, TA3 three grades. They have good corrosion resistance, ductility and toughness, but its workability, high weldability requirements.
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