Cómo elegir la placas termicas ctp

En los últimos años, con más y más empresas de impresión que adoptan la fabricación de planchas CTP, la comercialización de planchas CTP se está expandiendo. Ante tantos fabricantes de planchas CTP, ¿cómo elegir una de calidad? Hay varios consejos para comprar placas termicas ctp.

El primer paso es el control estricto de la placa de aluminio. La calidad del punto de celosía de la placa CTP afectará directamente la calidad del producto impreso, lo que a su vez afectará la reproducción de todo el proceso de impresión. Por lo tanto, el primer paso es elegir una placa CTP térmica con buena reproducibilidad de puntos.

El siguiente es el espesor del recubrimiento. La placa térmica CTP de Haomei adopta la fórmula de revestimiento única, que hace que el grosor del revestimiento de la placa de aluminio puro sea más uniforme, para garantizar que el error del punto de celosía esté dentro del 1 % sin la adición de la curva de calibración de puntos.

Otro es la imprimibilidad. Para mejorar la capacidad de impresión de la placa CTP, la placa base de aluminio se sometió a un tratamiento especial. Además, para garantizar una mejor hidrofilia de la placa CTP positiva, hay una capa hidrofílica especial en la placa base de aluminio para garantizar una buena humectabilidad y afinidad de la tinta durante el proceso de impresión.

La adaptabilidad de las planchas CTP también es muy importante. La placa CTP térmica positiva de Haomei se puede adaptar a las máquinas de fabricación de placas CTP térmicas de muchas marcas nacionales y extranjeras con una longitud de onda de 830nm, como Kodak, Netscreen, Heidelberg, Corey, Polytech, Huarui Jingyi, etc.

El último pero no menos importante es el costo de producción. El costo, en la situación económica actual, es el tema principal que deben considerar las empresas de impresión. Las planchas CTP de Haomei pueden ahorrar mucho en el costo de producción.

Por ejemplo, el revelador solo necesita reemplazarse una vez para procesar placas offset ctp de 2000 m3; la resistencia de impresión súper fuerte puede alcanzar 250,000 impresiones sin hornear la placa y hasta 1 millón de impresiones después de hornear, lo que puede satisfacer las necesidades de muchas plantas de impresión comercial, impresión de periódicos e impresión de empaques nacionales y extranjeras.

Fuente original: https://www.placadealuminio.es/a/como-elegir-la-placas-termicas-ctp.html

Aluminum 7075 Material Properties

7075 aluminum sheet is a commonly used grade in the 7xxx aluminum alloys. Zinc is its main alloying element. The addition of magnesium to the alloy containing 3%-7.5% zinc can form MgZn2 with a significant strengthening effect, so that the heat treatment effect of 7075 aluminum is far better than that of the aluminum-zinc binary alloy.

Aluminum plate 7075 is used to manufacture a variety of structural parts, especially aerospace structural parts. It is the most widely used high-strength aluminum alloy today, ranging from the front fuselage truss of the C919 large aircraft to the mobile phone casing. What are aluminum 7075 material properties?

It is available in various heat treatment tempers: T6, T73, T76, T77. Through a large number of experimental data and theoretical analysis, on the basis of 7075-T6, the aging heat treatment process was used to successfully develop 7075-T73, which is resistant to stress corrosion. Although this material sacrifices part of its static strength, its corrosion resistance has been significantly improved.

Later, 7075-T76 was further developed, which not only obtained stronger corrosion resistance, but also sacrificed a lower static strength than 7075-T73, which improved the comprehensive properties of aluminum alloy materials and became the best corrosion-resistant aluminum alloy.

7075 alloy can be resistance welded, and the long-term working temperature of the workpiece is less than or equal to 125℃. For incomplete annealing of materials or workpieces, the specification is 290°C~320°C, and after holding for 2h~4h, it is air cooled. Complete annealing specification is (390~430)℃/(0.5~1.5)h and it should be cooled down to ≤200℃ with a cooling rate not greater than 30℃/h.

The solution treatment temperature of 7075 alloy sheet is 460℃~490℃, and the treatment temperature of aluminum sheet should be close to the lower limit, and the number of repeated treatments should not be more than 2 times, so as to prevent alloy elements from diffusing through the aluminum clad layer and reducing the corrosion resistance of the material.

AA7075 composition

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	Zr	Ti	Standard
7075	0.40	0.50	1.2-2.0	0.30	2.1-2.9	0.18-0.28	5.1-6.1	–	0.20	GB/AMS/EN

Original source: https://www.aircraft-aluminium-sheet.com/a/aluminum-7075-material-properties.html

5083 H111 Mechanical Properties

Al-Mg alloys are non-heat treatment-strengthened alloys in which Mg is added to aluminum alone or Mg and Mn are added simultaneously. Alloys such as A5052 and A5083 containing 2.5% to 5% Mg can have a tensile strength of 196 to 294 MPa with different Mg content, and can be used as welding structural materials. When combined with an additive metal of appropriate composition, the weldability is very good, and the corrosion resistance, especially seawater corrosion resistance, is also very good.

Aluminum 5083 is an important 5xxx aluminum plate. Because of its high strength, strong corrosion resistance, and easy processing and welding, it is mostly used in shipbuilding, and is also known as marine aluminum plate. 5083 aluminum plate has stable performance, good corrosion resistance and durability in seawater and other environments.

In the 1960s, with the progress of science and technology, the production cost of 5083 aluminum sheet was gradually reduced, and it was widely used as a lightweight material. It was used to make yacht shells, hull superstructures, masts, and port infrastructure. In the 1970s, high-speed aluminum passenger ships first appeared in Scandinavia. With their speed and economic advantages, aluminum ships once became a model in the field of passenger ships.

Aluminum 5083 is a typical anti-rust aluminum plate with high corrosion resistance and rust resistance. The underwater part of the hull is in contact with seawater all the year round, and the material should be able to resist the corrosion of seawater and be durable for a long time. 5083 H111, 5083 H116 and5083 h321 are often used. Welcome to leave message below to inquire aluminum 5083 price.

5083 H111 Mechnical Properties

Physical Property	Value
Density	265 g/cm³
Melting Point	570 °C
Thermal Expansion	25 x10^-6 /K
Modulus of Elasticity	72 GPa
Thermal Conductivity	121 W/m.K
Electrical Resistivity	0.058 x10^-6 Ω .m

Original source: https://www.marine-aluminium-plate.com/a/5083-h111-mechanical-properties.html

5754 Aluminum Plate for Tank Truck

The 5000 series aluminum alloy belongs to the more commonly used series of aluminum plates. The main element is Mg, and the combined magnesium content is between 3-5%, so it can also be called Al-Mg alloy, featuring low density and tensile strength under the same area.

The aluminum sheets used for tank truck are mainly 5-series and 6-series. The 5 series is an aluminum alloy with magnesium as the main alloying element, and the 6 series is an aluminum alloy with magnesium and silicon as the main alloying elements and Mg 2Si phase as the strengthening phase.

5754 aluminum plate, known as almg3 material, can be used to manufacture tank body and bulkhead, which can reduce the weight of tank cars, increase the load, reduce fuel consumption and reduce exhaust emissions. Moreover, the 5754 aluminum plate has strong corrosion resistance and can greatly prolong the service life of the tanker. What are the almg3 material properties?

Both 5754 aluminum plate and 5083 aluminium plate belong to aluminum-magnesium alloys. The main difference between the two is the magnesium alloy content, hardness and elongation. The magnesium alloy content of the 5754 aluminum plate is around 3%, and the magnesium alloy content of the 5083 aluminum plate is as high as 4.5%. At the same time, 5074 aluminum sheet price is also much lower.

The magnesium content of 5052 is slightly higher than that of 5754, so the hardness of 5052 is better than that of 5754, and the toughness of 5754 is better than that of 5052. In addition, the content of silicon in 5754 is more than that of 5052. The silicon content affects the forging function and corrosion resistance of aluminum alloys, so 5754 aluminum plate has better forging function and corrosion resistance.

Original source: https://www.aluminium-tanker-plate.com/a/5754-aluminum-plate-for-tank-truck.html

2xxx Aluminum on Airplane and Spacecraft

Aluminum alloys are mainly used as structural materials in aircraft, such as skins, frames, propellers, fuel tanks, siding and landing gear,etc. The aircraft aluminum sheets used in the world today are mainly high-strength 2xxx aluminum (2024, 2224, 2324, 2424, 2524, etc.) and ultra-high-strength 7xxx series (7075, 7475, 7050, 7150, 7055, 7085, etc.).

Duraluminum 2024 is widely used in the manufacture of high-tech products such as aviation, aerospace, radar, etc. At present, in the field of scientific research, the research on the structure, second phase precipitation and properties of 2024 aluminum alloy materials has also achieved a lot of results.

2024 aluminum plate has high fracture toughness and low fatigue crack growth rate, and is the most commonly used skin material for aircraft fuselage and underwings. Its alloying elements are more effective, and the comprehensive performance is good. The characteristics of the alloy are: high compressive strength, certain temperature resistance, and can be used as a working part below 150 degrees.

The main alloying elements of 2024 aluminum alloy are Cu, Mg, Mn, and Fe and Si are the main impurities. 2024 aluminum alloy is commonly used in T3 and T4 states, and artificial aging can be used to improve the corrosion resistance, heat resistance and yield strength of 2024 alloy, but the plasticity and fatigue fracture resistance will be reduced.

2024 alloy has excellent comprehensive properties and high temperature creep resistance after artificial aging, and has a small tendency to soften at high temperature. It can be used for a long time at higher temperatures. It is mainly used for the skins and engines of commercial and military aircraft that often withstand high temperatures above 121 °C.

Most of the Japanese H-I rockets are made of aluminum. Except for the fuel and oxidant tanks, the other structures of rockets and spacecraft are the same as those of aircraft, and most of which uses duraluminum 2024 and 7075 alloys.

Original Source:https://www.aircraftaluminium.com/a/2xxx-aluminum-on-airplane-and-spacecraft.html

6016 Aluminum Used in Automotive Industry ​

Since aluminum alloy has the characteristics of light weight, wear resistance, corrosion resistance, high specific strength, good impact resistance, easy surface coloring, etc., and more than 80% of aluminum can be recycled and reused, it has been an ideal lightweight material for automobiles.

Since the 1970s, developed countries in the automobile industry such as Europe, America and Japan have invested a lot of manpower and material resources in the development to develop 6xxx aluminium used in automotive industry and successively developed and registered international aluminum alloys such as 6009, 6010, 6016, 6111, and 6022.

6000 aluminum alloys are heat-treatable-strengthened aluminum alloys with high strength, good plasticity and excellent corrosion resistance. 6-series alloys are the main force of body panels. The yield strength and tensile strength of the 6xxx T4 aluminum plate is similar to the steel plate and its hardening coefficient even exceeds that of the steel plate.

6009, 6010 and 6016 aluminum alloys are currently used for exterior and interior panels of automobile bodies due to their good plasticity and the ability to achieve high strength through artificial aging during the paint-baking process after forming. The body panels of the Audi A8 are made of this series of aluminum alloys.

6016 aluminum alloy is is widely used in ABS, but the heat treatment process is complicated, and pre-aging treatment T4P must be performed between solution treatment and paint treatment to obtain good performance. Because it should have good formability before stamping, and can rapidly increase the strength during the paint baking process after stamping, so as to have high dent resistance.

Al6016 is also used to make anti-collision beam. Compared with the steel plate front anti-collision beam assembly, the use of 6016 aluminum alloys to manufacture the front anti-collision beam not only greatly reduces the weight, but also improves the anti-collision effect. Welcome to leave message inquire automotive aluminum sheets you need.

Original Source:https://www.autoaluminumsheet.com/a/6016-aluminum-used-in-automotive-industry.html

6082 Marine Aluminum Tubing

In recent years, with the rapid development of the shipbuilding industry at home and abroad, reducing the weight of the hull,increasing the speed of the ship, and seeking aluminum alloy materials to replace steel components have become important issues for the aluminum processing industry and the shipbuilding industry.

Alloy 6082 has medium strength and good corrosion resistance, and is light in weight, which is an ideal material for manufacturing high-speed boat components. What are ,6082 aluminum properties?

Its tensile strength≥310MPa, yield point≥250MPa, elongation≥10%. Due to the high performance requirements of this product, Mg, Si, Fe and other elements mainly play a strengthening role, and a reasonable ratio is of great significance to the extrusion process and the performance of the final product. Therefore, it must be strictly controlled and the scope should not be too wide.

The 6082 alloy is characterized by containing Mn, which is a refractory metal, and the melting temperature should be controlled at 740-760 °C. Stir evenly for more than two times before sampling to ensure that the metal is completely melted, the temperature is accurate, and the composition is uniform.

The casting temperature of 6082 alloy is high (compared to the normal process of 6063), the casting speed is low, and the water flow is large. The above process needs to be strictly controlled and cannot be exceeded, otherwise it will easily lead to casting failure.

6082 aluminum has high deformation resistance, difficult extrusion, and high mechanical properties. After the homogenization treatment, the alloy microstructure changes as follows: (1) The intragranular segregation disappears; (2) The Ms2Si phase dissolves into α(Al), and the unbalanced eutectic disappears; (3) The β(Al9Fe2Si2) phase turns to α(Al12Fe3Si2 ) phase transformation and refine the iron-containing phase particles.

6082 marine aluminum tubing is heated by power frequency induction heating. The characteristics of this heating method are (1) the heating time is short, and the temperature can reach about 500 ℃within 3 minutes; (2) the temperature control is accurate, and the error does not exceed ±3 ℃.

According to the characteristics and performance requirements of 6082 alloy marine aluminum profiles, the above process is more reasonable. And Haomei 6082 aluminum profile has successfully passed the DNV certification. Welcome to leave message below to inquire it.

Original Source:https://www.marinealu.com/a/6082-marine-aluminum-tubing.html

5083 H116 H321 for Tanker Truck

Aluminum alloy load tanker refers to a transport tanker or semi-trailer whose tank is made of aluminum alloy or pure aluminum. The tank body is an important part of the tanker. Generally, 5083 aluminum sheet are used. Its common tempers are H111, H116 and H321.

5083 aluminum plate is an aluminum alloy with high magnesium alloy content with high hardness. The magnesium (Mg) content can reach between 4.0% and 4.9%. Usually, the middle value is 4.5% in the production process. It has wide applicatin in the manufacture of parts for ships, tankers and automobile body.

Aluminum 5083 h116 features low density, high tensile strength and high elongation. In addition, the 5083-H116 aluminum plate is a heat-treated alloy with good machinability, corrosion resistance and weldability. Due to its complex processing technology and high technical requiremetns, the 5083-H116 aluminum plate price is generally relatively high.

Al 5083 h321 refers to the processing method in which the 5083 aluminum plate is heat treated at low temperature after work hardening, or is directly heated during the processing, thereby obtaining stable mechanical properties. The mechanical properties of 5083 h321 are shown in that its tensile strength (250℃MPa) is 275-350, yield strength is 200， hardness (HB) is 65, elongation is 16.

5083-H321 (6mm×2420mm×10641mm), 5083/5454/5182-H111 (5-8mm×1800-2400mm×5000-12000mm) and other specifications from Haomei Aluminum are all produced by hot continuous rolling to achieve mass production and widely used for liquid transport tanker, refrigerated truck, new energy bus, container,etc.

Other alloys used for tanker truck are 5182, 5754, 5454 and 5059. 5059 aluminum plate belongs to 5 series aluminum-magnesium alloy, which has high strength, high plasticity and corrosion resistance, good weldability and low crack tendency. With its own unique advantages, it is widely used in special tank trucks for petrochemical and other dangerous goods. Welcome to leave message below to inquire what you need.

Original Source:https://www.aluminumtankerplate.com/a/5083-h116-h321-for-tanker-truck.html

Uses of 3004 Aluminum Foil

3004 aluminum foil is a kind of adding the strengthening element magnesium. It not only has the advantages of 3003 alloy, but also has higher strength than 3003 alloy. It also has good formability, solubility and corrosion resistance. What are its popular uses?

Food container aluminum foil

Aluminum foil container is made of aluminum foil with certain strength and toughness after stamping and forming. It is a new type of food and beverage packaging and distribution container, featuring moisture-proof and anti-corrosion, and long shelf life. At the same time, because aluminum can better maintain the freshness and moisture of food, it is more in line with modern people’s concept of environmental protection and healthy life.

3004 aluminum foil is 3xxx hot rolled aluminum foil, with high hardness, good load-bearing, better stamping effect than 3003 aluminum foil. On the basis of ensuring the low price of 8011 alloy, the aluminum foil tray made by 3004 alloy also ensures the high strength of 3003 alloy, and the strength is higher than that of 3003 alloy. It can be said that it has both the price advantage of 8011 and the strength advantage of 3003.

Honeycomb aluminum foil

It is he main material used to make aluminum honeycomb cores. As an important raw material of honeycomb core, aluminum foil has a great influence on the quality and service life of honeycomb core. The alloy used is generally 3004 aluminum foil with H18 temper. The thickness is between 0.03-0.08mm. there are also a few 5052 honeycomb aluminum foil, but because it is of high cost, it is less used than aluminum foil.

Aluminum foil for flexible packaging

Aluminum foil is widely used in flexible packaging. Due to its low strength, it is easy to break at the beginning of folding, so it is rarely used alone. It is generally composited with paper, cellophane or polyethylene film.

Air conditioner aluminum foil

The air-conditioning foil substrate can be made of 1100/3003/3004/8011 alloy, etc., and there is no strict requirement on the chemical composition of the material. AA 3004 aluminum used for the heat-conducting fin material of the air-conditioning heat exchanger belongs to the aluminum-manganese alloy, which has good corrosion resistance, excellent formability, high strength and elongation, and meets the mechanical performance requirements of the air-conditioning foil.

Original Source: https://www.alumfoils.com/a/uses-of-3004-aluminum-foil.html

The Manufacturing Process of Thin Flat Aluminum Strips

Aluminum strip stock is the product of aluminum coil after slitting, and the width is narrow, which is suitable for the use of transformer manufacturing, hardware lighting processing and window spacer. Usually aluminum strips are cut according to the actual width of the user, which can reduce waste, reduce processing procedures (without cutting), and save raw material costs.

The production of cold-rolled aluminum strips all need to go through production processes such as cold rolling, finishing and heat treatment. The difference in production processes is mainly in the production method of cold-rolled billets. At present, there are three main production processes: casting and rolling, ingot hot rolling and continuous casting and rolling.

The casting and rolling process is to directly cast the molten aluminum into a 6mm-8mm cast-rolled coil, and then adopt cold rolling method. Ingot hot rolling process is to semi-continuously cast aluminum liquid into large flat ingots. After the ingots are sawed, milled and edged, and heated, they are first sent to the hot rolling mill to be processed into hot rolled coils, and then cold rolled.

The continuous casting and rolling process is between the casting and rolling process and the slab hot rolling process, and there are many forms. Generally, molten aluminum is continuously cast into slabs of a certain size (thickness is much thinner than that of large slabs), and the high-temperature slabs are directly sent to hot rolling mills for rolling.

Today, the continuous casting and rolling process of thin slabs, which can save energy and reduce consumption and reduce production costs significantly, has attracted more and more attention. For example, for the production of 1mm-2mm aluminum, the continuous casting and rolling process only needs smelting, continuous casting and rolling to achieve.

The casting and rolling process requires smelting, casting and cold rolling to achieve. The flat ingot hot rolling process requires smelting, semi-continuous casting, sawing head and tail, milling, ingot heating, hot rolling, (cold rolling) to achieve. It can be seen that continuous casting and rolling belong to a short manufacturing process.

The main processing equipment of the thin flat aluminum strips is the slitting unit, which can cut the flat aluminum strips into the required length and width according to the needs. Haomei Aluminum owns two aluminum strip slitting production lines, which can cut aluminum strips according to the width required by users. For products with high surface requirements, film can be applied during the slitting process to avoid scratches.

The cutting accuracy of aluminum strip can be controlled within 0.05mm, and the inner and outer diameters can be processed according to user requirements. Welcome to leave message below to inquire what you need.

Original source: https://www.aluminumstrip24.com/news/the-manufacturing-process-of-thin-flat-aluminum-strips.html