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| Aluminum strip 1070 with little tolerance and high precision |
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Posted by: marcisf11 - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
The raw material of the <strong>aluminum strip 1070</strong> is pure aluminum or aluminum alloy cast aluminum coil, hot rolled aluminum coil, which is rolled into thin aluminum coil of different thickness and width by cold rolling mill, and then longitudinally slit into aluminum strips with different widths according to the application.</p>
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The product features of high quality 1070 aluminium strip are small tolerance, high precision, smooth surface, no peeling, roller marks and other phenomena, the coil material is spread out in a straight state, the deviation is small to ensure straightness, excellent mechanical properties, high fatigue resistance, good elastic edge, and smooth edges on both sides. The <strong>1070 aluminum strips</strong> can be applied in dry type transformers, lamp bases, cable wrapping, lamp covers, caps material and so on.</p>
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The alloys of aluminum strips are 1050, 1060, 1070, 1100, 3003, 3004, 3104, 3105, 5052 and so on. The high quality aluminum strips are widely used in clockwork, precision electronics, computer connectors, auto parts, camera parts, air conditioning pressure switch film, electronic appliances, metal stamping parts, spring shrapnel, cushion diaphragm, precision parts, mobile phone accessories, ripple Tubes, seals, etching parts, photoelectric protection, thermostats, automotive expansion valve diaphragms, air compressor shrapnel, injection needles, piston ring expansion rings, cylinder head gaskets, elastic springs, button batteries, computer mobile phone accessories, WAGO cage springs, stampings and other connectors.</p>
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| China aluminum strip for cable |
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Posted by: Lacukata - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
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Armored cable is placed under the ground or on the ground surface, the <strong>china aluminum strip for cable</strong> is armored to form a cladding on the surface of the cable to provide protect and shield effect. The armor layer has a relatively strong tensile strength, and gradually replaces the early plastic layer, and the often used alloy composition of the armored cable aluminum strip is 1000 series like 1060 aluminum strip.</p>
<p>
The armored cable reaches the tensile and corrosion resistance requirement, and the power cable with aluminium strips protective layer can meet the requirements of the tensile armor layer. <strong>Aluminum strip for cable</strong> also have shielding and grounding effect during installation and operation, which play an important role in power and communication stability. The rounded corners of the aluminum strip can avoid the occurrence of burrs, and the frictional resistance between the industrial pure aluminum strip and the mold is reduced, can effectively improve the quality of the cable-forming process of the cable, reduce the consumption of the aluminum strip, and reduce the production cost.</p>
<p>
The <strong>china aluminum strip for cable</strong> has high quality and light weight, with great shield effect, the armored cable aluminum strip effectively reduces the diameter of the cable, reduce the whole weight and reduce the production cost as well for cable enterprises.</p>
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| Aluminum strip for transformer winding price |
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Posted by: Svyatoslavsob - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
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Aluminum strip transformer windings are suitable for low voltage (hundreds of volts), high current (hundred amps to thousands of amps) transformer, and are commonly used as secondary windings for distribution transformers. The foil type transformer adopts high conductivity copper foil strip or aluminum strip as the conductive material, and the thickness of the copper foil or aluminum strip foil is about 0.1 to 2.5 mm. The <strong>aluminum strip for transformer winding price</strong> is lower than copper foil price, so, the aluminum strips occupy more market in transformer enterprises.<br></p>
<p>
We all know that, the conductivity of copper foil is higher of aluminum foil, but why more and more customers prefer aluminum foil strips than copper foil is not just because of saving coat. Moreover, for the dry type transformer, since the thermal expansion and contraction coefficient of aluminum is closer to the thermal expansion and contraction coefficient of the epoxy resin than the copper, the crack resistance of the <strong>aluminum strip for transformer winding</strong> is better than that of the copper. Moreover, since the strength of the dry transformer winding itself is very good, the difference in mechanical strength between copper and aluminum has no practical significance. Due to using the 1000 series aluminum, the <strong>aluminum strip for transformer winding price</strong> on the market is not high, 1060 and 1070 aluminum strips with round edge and no burr are good choice to processing dry type transformer winding.</p>
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| Aluminum strip for transformer price on the market |
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Posted by: oscarrx4 - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
The aluminum strip is the product of the aluminum coil after slitting processing, and the width is narrow. It is suitable for transformer manufacturing, medium space aluminum strip, alloy aluminum strip, aluminum tube strip, finned aluminum strip, metal lamp processing and other industries. The <strong>aluminum strip for transformer price</strong> matches the product quality, so when choosing transformer aluminum strip manufacturer, it’s better to focus on the quality first.</p>
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Usually, the aluminum strips are slit according to the actual needs of the user, which can reduce the waste, reduce the processing steps (without cutting), and save the raw material cost. Thus, the <strong>aluminum strip for transformer price</strong> provided by the factory will be lower. Haomei Aluminum is a professional transformer aluminum strip manufacturer with two slitting production lines, we can cut the aluminum strip according to the width required by the user. For products with higher surface requirements, it can be filmed during the slitting process to avoid scratching. The cutting precision of <strong>aluminum strip for transformer</strong> can be controlled within 0.05mm, and the inner diameter and outer diameter can be processed according to requirements. Haomei supply aluminum strips special for dry-type transformers with side chamfers, round edge, smooth surface and burr-free, we can guarantee the product quality with fast delivery at the same time.</p>
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| Buy transformer aluminium strip with high quality |
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Posted by: imarakazoori - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
To transformer enterprises, the raw materials for transformer winding has several choices, the aluminum strips and the copper strips. In addition to the low cost, the aluminum strips also have other advantages than the copper strip wire, that is the thermal stress resistance, and this is one of the reasons why more and more people choose to <strong>buy transformer aluminium strip</strong>.</p>
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Aluminium strips are much more resistant to thermal stress than copper strips. The thermal expansion coefficient of the epoxy resin is 3.3×10-5 (mm/mm.h.°C), and the thermal expansion coefficient of the copper material is 1.6×10-5 (mm/mm.h.°C), which is more than doubled. The thermal expansion coefficient of the <strong>transformer aluminium strip</strong> is 2.3×10-5 (mm/mm.h.°C), which is only 1.0×10-5 (mm/mm.h.°C) smaller than the resin. In daily operation, due to the change of load, the temperature of the dry-changing coil changes, and the thermal expansion coefficient of the conductor and the resin will generate thermal stress. If the thermal stress is too large and repeated, the resin will be cracked. Compared with copper, the thermal expansion coefficient of aluminium strips is closer to epoxy resin, which reduces thermal stress, which greatly improves the crack resistance and safety of dry-type transformers and prolongs the service life of equipment. It can be seen that the dry-type transformer high-voltage coil wound with copper foil or copper wire is more likely to crack than the coil wound by the aluminum strip, and the service life is relatively short. Therefore, more and more enterprises prefer to <strong>buy transformer aluminium strip</strong> than copper strip.</p>
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| Properties and application of aluminium fin strips |
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Posted by: Fipokata - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
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The <strong>aluminium fin strips</strong> is mainly used for finned heat sink, because aluminium strip has good electrical conductivity, the conductive property of aluminum in non-ferrous metal is only lower than that of copper. Therefore, the international use aluminum strip instead of copper strip as a commonly used material for finned heat sinks, which achieves the purpose of enhancing heat transfer by adding fins to a common base pipe.</p>
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The base pipe of finned heat sink can be made of steel pipe, stainless steel pipe and copper pipe. The fins can also be made of steel strips, stainless steel strips, copper strips, aluminum strips, etc., The finned heat sinks can be divided into wafer type, string type, soldering type and rolled type in the form of fin structure, currently widely used is the steel-aluminum composite finned tube, which utilizes the pressure resistance of steel pipe and the high-efficiency thermal conductivity of aluminium strips, the steel-aluminum composite tube is an irreplaceable cost-effective advantage of other types of finned tube heat sinks. The same as transformer aluminium strips, the alloy used in the <strong>aluminium strips for radiator</strong> is 1060, the temper is o, the thickness is 0.3-5.0mm. The special <strong>aluminium fin strips</strong> has high flatness, good winding mechanical properties and small width tolerance.</p>
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| Transformer aluminium strip manufacturers Haomei |
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Posted by: Brianwrone - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
<strong>Transformer aluminium strip manufacturers</strong> can supply high quality 1060 aluminium strips for transformer winding. Aluminum strip coils are mainly used for small and medium-sized transformers with a capacity of less than 2000kVA. The advantages of the aluminum foil strip coil are good mechanical strength, not easy to deform, can withstand short-circuiting force, good electrical strength, uniform distribution of impact gradient voltage and easy to wind.</p>
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The low-voltage windings of small and medium-sized transformers are all use aluminum foil strip structure. The <strong>transformer aluminium strip</strong> utility model has the advantages that the filling coefficient of the conductive material in the iron window can be increased, the volume can be reduced, and at the same time, the thermal conductivity of the winding radial direction is increased, the temperature gradient is low, and the thermal stability is good, thereby suppressing the hot spot temperature of the winding. Moreover, since the winding process is wound only from one direction and has no lateral movement, it is easy to improve the mechanical strength, reduce the winding time, and the structure is simple, and the impulse voltage distribution is uniform. Besides of 1060, <strong>transformer aluminium strip manufacturers</strong> can also supply 1050 aluminum, 1070 aluminum and 1350 aluminum strip for the transformer winding, the thickness is 0.08-0.2 mm, and the temper is O.</p>
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| Electrical grade aluminium transformer strip |
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Posted by: YRfagFL - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
The main components of the transformer consist of three parts, the magnetic circuit, the circuit and the cooling system. First, the magnetic circuit portion is the core portion of the transformer, second, the circuit portion is the winding or the coil, third, the cooling system is a fan for the dry type transformer and a transformer oil for the oil type transformer. The circuit part includes windings or coils, which are divided into copper wires and EC grade aluminum transformer wires according to materials, copper foil strip and EC grade <strong>aluminium transformer strip</strong>. Today our theme is the transformer aluminum foil strip.</p>
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<strong>Aluminium transformer strip</strong> is used in dry type transformer, and 1000 series aluminum are usually used. Haomei aluminum provides 99.6%, 99.7% pure industrial transformer aluminum foil, The electrical conductivity of 1070, 1060 electrical grade <strong>transformer aluminum strip</strong> after purification is higher than 62.7% at 20 °C. In addition, the electrical grade aluminum transformer strips from Haomei aluminum are special treated with round edges, the edge is without burrs, and the coating includes insulation, the edge material does not short-circuit. Haomei transformer aluminum strip products are with high quality and are exported to Japan, Korea, USA, Germany. The main customers are Toshiba, Siemens, Schneider and so on.</p>
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| Transformer aluminium strip suppliers on the market |
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Posted by: ThadDechai - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"><strong>Transformer aluminium strip suppliers</strong> occupy more proportion on the market for dry type transformer winding strip. The dry type transformers which all the winding of high and low voltage winding are made of aluminum strips has the advantages of fire proof, flame retardant and pollution-free. 1060, 1050, 1070 and 1350 aluminum can be used as the transformer aluminum strip, the 1060 O aluminum strip are common used.<br> <br>
Compared with copper wingding, aluminum strip transformer winding also have the following characteristics.<br>
1. the thermal expansion coefficient of aluminum strips is closer to epoxy than copper and can prevent cracking completely.<br>
2. the aluminum strip coil has large linear capacitance, good impact resistance and uniform distribution of impact voltage gradient, which can effectively suppress potential fluctuations.<br>
3. the <strong>transformer </strong><strong>aluminum </strong><strong>strip</strong> coil is light in weight, and under the same resistance value, the aluminum strip coil is only half the weight of the copper strip coil.<br>
4. the special aluminum strip for transformer is used. The aluminum strip has enhanced mechanical strength, high electrical conductivity, and the surface is bright, and it is not easy to oxidize.<br>
5. welding is strong and reliable, low contact resistance, no local heating, and increase the overload capacity of the transformer. </p>
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| Aluminium transformer foil VS Copper foil |
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Posted by: serenapy1 - 08-11-2020, 09:49 AM - Forum: Knowledge & Technique
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<p style="clear: both; font-size: 16px; white-space: normal;"></p>
<p>
Aluminum foil and copper foil can be used in the dry type transformer winding. In the advanced countries, the <strong>aluminium transformer foil</strong> are commonly used instead of copper foil for the low price and friendly to the environment. Besides of these advantages, the transformer aluminium foil also have superior features on the performance than copper foil.</p>
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Technical performance comparison of dry-type transformer coils made of aluminium foil and copper foil:<br>
1. The mechanical strength of aluminium is lower than that of copper, but it has no effect in dry-type transformers.<br>
While winding the high-voltage coil, a glass fiber mesh skeleton is installed inside and outside the coil, and since the vacuum casting method is adopted, no voids and pores are left in the coil, the glass fiber, the resin are combined, the <strong>transformer aluminium foil</strong> and the insulating film are combined tightly as a whole, these measures have compensated for the weakness of the mechanical strength of the aluminium foil. The fabricated aluminum foil high voltage coil is sufficient to resist the mechanical stress generated during a sudden short circuit.<br>
2. Aluminum has a lower electrical conductivity than copper, the specific gravity is lower than copper. It is more suitable as a conductor for dry-type transformer coils.<br>
Since <strong>aluminium foil for transformer</strong> has a lower electrical conductivity than copper, in order to obtain the same resistance value, aluminum must have a cross-sectional area of 1.64 times that of copper. However, the density of aluminum is only one-third of that of copper, so when the same resistance value and the same capacity of electrical energy are transmitted, the weight of aluminum is only one-half of that of copper, it is better to meet the requirements of lightweight. Under normal circumstances, material costs of the aluminium transformer foil can also be reduced, and its price performance ratio is much better than that of copper coil dry-type transformers.</p>
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