Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - xiuweetime

Pages: [1]
1
The ECCA wire is a new type of magnet wire that accepts copper-clad aluminum as the inner conductor. Its characteristics are between copper and aluminum, combining the excellent electrical conductivity of copper and the lightweight of aluminum. Below is an introduction to the ECCA wire by ECCA Manufacturer(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ .

Features of the ECCA line:

1. DC resistivity: The DC resistivity of the copper clad aluminum wire is about 1.45 times that of the pure copper wire; at the same time, the weight of the copper clad aluminum wire is about 1/2 of that of the pure copper wire.

2. Good solderability: The copper-clad aluminum wire is coated with a layer of pure copper concentrically, so it has the same brazability as the pure copper wire, and does not have to be specially treated like the aluminum wire; The copper clad aluminum wire has a thick copper layer to ensure that the soldering performance of the product is not affected when the paint is scraped;

3. Lightweight: The copper-clad aluminum wire density is 1 to 2.5 times that of the pure copper wire with the same diameter, which is very effective for the weight of the low coil; the copper clad aluminum wire can replace the copper wire, which can save at least 30% of the cost.

If you are interested in our products, you can click Aluminum Magnet Wire http://www.xinyu-enameledwire.com/product/paper-covered-rectangular-copperaluminum-wire/ to learn more information.

2
At present, Enameled Copper Clad Aluminum Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/enameled-copper-clad-aluminum-wire/ are mainly used in low-voltage power cables. Although medium-voltage cables are also involved, the number is very small. Like wires for electrical equipment, the main reason why enameled copper clad aluminum wires are used as conductors in power cables is also due to the rise in copper prices and the fact that enameled copper clad aluminum wires are superior to aluminum-core cables in joint links. Internationally, standards such as UL1581, UL1072 and UL83 in the United States have made corresponding regulations on the performance and wire gauge of enameled copper clad aluminum wire as a power cable conductor, but there are few examples in actual application. Up to now, enameled copper clad aluminum wire has only enterprise standards.

In the past three years, wire and cable with enameled copper clad aluminum wire as a conductor have been widely used. At the same time, many enterprises have entrusted their products to the national wire and cable quality supervision and inspection centre for inspection. As of the end of April 2008, nearly 40 cable enterprises have entrusted the inspection centre to carry out type tests. As far as the inspection situation of enterprises is concerned, the products currently submitted for inspection are mainly concentrated in power cables, and mainly cables under 10 kV, of which 1kV cables account for about 80% of the total number of products submitted for inspection, and 10kV cables account for about 20%.

It is precise because of the above factors that the number of enterprises producing enameled copper clad aluminum wire in China has a trend of increasing year by year. From 2005 to 2006, there were only about 3,500 manufacturing enterprises in the country, to 2007, dozens of enterprises have already entered or are preparing to enter this product field.

If you are interested in our products, you can click Varnish Wire http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ to learn more information.

3
Aluminum Magnet Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/paper-covered-rectangular-copperaluminum-wire/ refers to the magnet wire with aluminum as the core, and the magnet wire is used to manufacture insulated wires of coils or windings in electrical products. Also called winding wire. Magnet wires must meet the requirements of various applications and manufacturing processes. The former includes its shape, specification, ability to work at high temperature for a short time and a long time, as well as withstanding strong vibration in some occasions and centrifugal force at high speed, corona and breakdown resistance under high voltage, chemical corrosion resistance under special atmosphere, etc. The latter includes the requirements of stretching, bending and abrasion during winding and embedding, as well as swelling and erosion during impregnation and drying.

Aluminum magnet wires can be classified according to their basic composition, conductive wire core and electrically insulating layer. Generally, it is divided into aluminum enameled wire, aluminum wrapped wire, aluminum enameled wrapped wire and inorganic insulated wire according to the insulating material and manufacturing method used for the electrically insulating layer.

Enameled wire of aluminum magnet wire: coat the conductor with corresponding paint solution, and then volatilize the solvent, solidify the paint film and cool it. Enameled wires can be divided into polyester enameled wires, polyester-imide enameled wires, polyamide-imide enameled wires, polyimide enameled wires, polyester-imide/polyamide-imide enameled wires, corona-resistant enameled wires, as well as oil paints, acetal paints, polyurethane enameled wires, etc. according to the insulation paint used. Sometimes it is also classified according to the particularity of its application, such as self-adhesive enameled wire, cryogen-resistant enameled wire, etc.

The winding of magnet wire: An Important Variety of Winding Wire. Early use of cotton yarn and silk, known as yarn and silk wrap, was used in electrical machines and appliances. Due to the large insulation thickness and low heat resistance, most of them have been replaced by enameled wires. At present, it is only used as a high-frequency winding wire. In large and medium-sized winding wires, when the heat resistance level is high and the mechanical strength is high, glass wire wrapping wire is also adopted, and appropriate adhesive paint is matched during manufacturing.

Paper winding still occupies a considerable position in winding and is mainly used in oil-immersed transformers. The oil-paper insulation formed at this time has excellent dielectric properties, low price and long service life. In recent years, film winding has developed rapidly, mainly polyester film and polyimide film winding. Recently, there are mica tape coated polyester imine film coated copper flat wire for wind power generation.

If you are interested in our products, you can click Aluminum Winding Wire http://www.xinyu-enameledwire.com/ to learn more information.

4
Alloy materials belong to the category of metal materials. Compared with pure metal materials, alloy materials combine the characteristics of a variety of metal materials and have better service performance, and can reduce the use of some metal materials to a certain extent and save raw materials. Enameled copper clad aluminum wire has good electrical properties and is relatively widely used nowadays. Then the ECCA Manufacturer(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ will introduce its manufacturing method.

1. Pull the copper clad aluminum wire core 4 to 6 times.

2. paint that pulled wire core 10 to 13 time, and the painting steps are as follows: (1) Paint the wire core; (2) Putting the painted wire core into an annealing furnace for annealing; (3) Putting the annealed wire core into an oven for drying.

3. Take-up. The speed of take-up is required to be 51m/min.

4. Lower wall and package.

In the content of the above article, I introduced some methods of making enameled copper-clad aluminum wire in detail. Do you all know how to make enameled copper-clad aluminum wires now? The enameled copper-clad aluminum wire can be used instead of pure copper, thus saving the consumption of copper resources to a certain extent.

If you are interested in our products, you can click Enameled Wire http://www.xinyu-enameledwire.com/ to learn more information.

5
How to remove paint from the Copper Winding Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ is generally divided into the following three methods according to different conditions, equipment and requirements.

1. For ordinary thin wires, tin can be directly applied on a soldering iron at 400 degrees Celsius. For thick wire, we don't recommend the method of baking by fire, which will make the copper winding wire oxidized and affect its properties. Even if it is finished reluctantly in time, some air holes will be found on the surface of the upper tin.

2. We can also apply rosin to the broken ends of copper winding wire and put the cross-section into a soldering iron to melt in. The cross-section has no paint, so tin will be applied quickly. The surrounding of the cross-section will be stripped of paint and tin will be applied without attachment force as the temperature increases. We just need to control the temperature.

3. The third method is to use paint. Professionally qualified paint does not cause any damage or corrosion to the metal. It can quickly make the paint on the surface of copper winding wire, and the removed paint becomes lumpy, without adverse consequences or residues on the surface of copper winding wire. After paint removal, the core wire has excellent weldability and is now processed in batches in many industrial manufacturing sites by this method. Now, it has largely replaced the old method of scraping fire with a knife, and the cost and effect are also greatly improved.

If you are interested in our products, you can click ECCA Manufacturer http://www.xinyu-enameledwire.com/ to learn more information.

6
After the Enameled Wire(XINYU-ENAMEWIRE) http://www.xinyu-enameledwire.com/ is wound into a coil, it usually goes through an impregnation process. The solvent in the impregnating varnish has a swelling effect on the paint film to varying degrees, especially at higher temperatures. During the use of the impregnated winding, the paint film may be thermally cracked due to heat, so the compatibility between the impregnated paint and enameled wire paint film has a great impact on the service life of motors, electrical appliances and meters.

During use, the winding may be in contact with various surrounding media, such as refrigerant in refrigeration device and various chemical gases in a chemical plant. These media have different degrees of corrosion to paint film, salt fog can also produce chemical corrosion to the enameled wire of electrical products on marine ships, etc. Therefore, the paint film of enameled wire is required to have better chemical stability.

If you are interested in our products, you can click Aluminum Winding Wire http://www.xinyu-enameledwire.com/ to learn more information.

7
Copper Winding Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ is the main type of winding wire, which consists of a conductor and an insulating layer. Bare wire is annealed and softened, then painted and baked many times. However, it is not easy to produce products that meet both standard requirements and customer requirements. It is affected by raw material quality, process parameters, production equipment, environment, and other factors. Therefore, the quality characteristics of various enameled wires are different, but they all have four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties.

Generally speaking, copper winding wires can be divided into:

1. General-purpose enameled wire (ordinary wire): mainly used for general motors, electrical appliances, and meters. Winding wires for transformer and other work occasions.

2. Heat-resistant enameled wire: it is mainly used for winding wires of motors, electrical appliances, instruments, transformers and other working occasions operating at 180℃ and above.

3. Enameled wire for a special purpose: refers to the enameled wire with certain quality characteristics, which is used for winding wire on specific occasions.

After copper winding is wound into a coil, it usually goes through the dipping process. The solvent in dipping paint has a swelling effect on paint film in different degrees, especially at the higher temperatures. During the use of the impregnated winding, the paint film may be thermally cracked due to heat, so the compatibility between the impregnated paint and enameled wire paint film has a great impact on the service life of motors, electrical appliances, and meters. During use, the winding may contact with various surrounding media, such as refrigerant in refrigeration equipment and various chemical gases in chemical plants. These media have different degrees of corrosion to the paint film, and salt fog can also produce chemical corrosion to enameled wires of electrical products on marine ships, etc. Therefore, the paint film of copper winding wire is required to have better chemical stability.

If you are interested in our products, you can click Enameled Wire http://www.xinyu-enameledwire.com/ to learn more information.

8
1. Varnish Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ adopts advanced cladding welding manufacturing technology to concentrically clad high-quality copper tape on the outer surface of core wires such as aluminum rods or steel wires, and to form a firm metallurgical bond between the copper layer and the core wires.

2. The two different metal materials are combined into an indivisible whole and can be drawn and annealed like a single metal wire. During the drawing process, copper and aluminum are changed in the same proportion, while the volume ratio of the copper layer remains relatively constant.

3. The characteristics of varnish wire technology are mainly cost-saving, resource-saving, cost-saving and resource-saving.

4. Varnish wire has the composite characteristics of copper conductivity and aluminum density. The copper-clad steel wire combines the conductivity of copper with the high strength of steel.

5. Steel wire has improved electrical conductivity, thermal conductivity, corrosion resistance and oxidation resistance. Industry insiders revealed that the "copper clad aluminum phenomenon" is only the "tip of the iceberg" among many problems caused by the rise in raw material prices. Although copper-clad aluminum wire has advantages, it combines the best characteristics of the two metals, with lightweight and low price. However, most copper-clad aluminum wires are applied from the perspective of "replacing aluminum". It is not a concept to "replace" copper where aluminum is not good (copper accounts for 10% of the cross-section of wire generally) and "save copper". At present, the copper price is too high, the aluminum price is cheap, and the threshold is low. Some manufacturers have a somewhat dangerous tendency to blindly and excessively develop copper-clad aluminum products driven by interests. Some enterprises even actively reduce the amount of copper and replace copper with copper-clad aluminum, which is not desirable.

If you are interested in our products, you can click Aluminum Magnet Wire http://www.xinyu-enameledwire.com/product/paper-covered-rectangular-copperaluminum-wire/ to learn more information.

9
What are the welding methods for Aluminum Winding Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ ? First, the terminals can be crimped, secondly, special aluminum welding wire and flux are used for welding, and finally, high-temperature aluminum flux is used for welding.

The welding method commonly used for aluminum winding wire welding is special flux-welded iron welding, usually aluminum wire with Suu diameter is welded with bare aluminum alloy, aluminum alloy and copper wire. Select this welding method, and the welding method has good workpiece formation, reliable quality and convenient operation.

Welding instructions: during welding, the welding head should be in contact with the welding body as much as possible, and the welding wire should be sent to the welding head to melt the welding wire and complete the welding. this method can make the flux in the welding wire fully contact with the surface to achieve the best welding effect. For the welding of aluminum wire and aluminum wire, the two steel wires are twisted with twisted wires, and the twisting is directly affected by the twisted wires. The bigger the twist, the bigger the size of the big twist and the stronger the welding. For the newly welded welding wire, do not pull the wire too fast, need to cool completely and test its reliability. For unused welding wire, we use lighter to burn the welding wire head to avoid the loss of liquid flux in the welding wire and affect the next welding.

If you are interested in our products, you can click Copper Clad Aluminum Winding Wire http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ more information.

10
As usual, more and more cable equipment is used here, because these cables play a very important role in our side. Many electrical appliances around us need these cables. ECCA Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/
 is the most common cable product around us. Many friends pay close attention to the quality and performance of ECCA wire when purchasing ECCA wires, thus purchasing cable products with higher cost performance to meet our needs. Next, let's look at the quality and performance of the ECCA wire.

ECCA wire adopts advanced cladding welding manufacturing technology to form a strong metallurgical separation between the copper layer and core wire by concentrically cladding copper strip on the surface of core wire such as aluminum rod or steel wire. The two different metal materials are divided into an integral whole, which can be stretched and annealed like a metal wire. During the drawing process, copper and aluminum are proportionally reduced, while the volume ratio of the copper layer remains relatively constant. Due to the skin effect of high-frequency signals, ECCA wire and copper-clad steel wire have the same conductivity as pure copper wire when transmitting high frequency signals. Common composite characteristics: ECCA wire has the composite characteristics of copper conductivity and low aluminum density, while ECCA wire separates copper conductivity from high strength steel. Tin-plated copper-clad steel wire plays a role in solderability and sulfide resistance of tin, while silver-plated copper-clad steel wire improves electrical conductivity, thermal conductivity, corrosion resistance and oxidation resistance. Therefore, it has a wide range of applications.

The quality and performance of the ECCA wire are still very good. The emergence of ECCA wire technology has greatly improved the quality of these cables. I hope you can pay attention to the quality of these copper-clad aluminum wires and buy ECCA wire products with higher cost performance.

If you are interested in our products, you can click ECCA Manufacturer http://www.xinyu-enameledwire.com/
 to learn more information.

11
The quality of ECCA Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ depends to a great extent on the quality of raw materials such as paint and wires and the objective conditions of machinery and equipment. However, if a series of problems such as baking, annealing and speed are not taken seriously in operation and their interrelations are not understood, operation technology is not mastered, tour work and parking and finishing work are not done seriously, and process sanitation is not done well, even if the objective conditions are better, high-quality ECCA wire cannot be produced. Therefore, the decisive factor for making ECCA wire well as a human being and human being's sense of responsibility for work.

First of all, before starting the catalytic combustion hot air circulation enamelling machine, the fan should be started to make the air in the furnace circulate at a slow speed. Preheating the hearth and the catalytic zone by electric heating to make the temperature of the catalytic zone reach the prescribed light-off temperature of the catalyst. Secondly, in the production operation of ECCA wire, the ECCA wire should also pay attention to the problems of explosion and fire.

There are several situations of burning: first, the whole furnace is completely burned, which is often caused by the over-high steam density or furnace temperature in the cross section of the furnace; Second, when threading, too much paint was applied to several wires, causing several wires to catch fire. In order to prevent fire, the process furnace temperature must be strictly controlled and the furnace must be ventilated smoothly. Then, the finishing work after parking mainly refers to cleaning the old glue at the furnace mouth, cleaning the paint cylinder and guide wheel, and doing a good job in the environmental sanitation of the ECCA wire and the surroundings. In order to keep the paint tank clean, if not working, the paint tank should be covered with paper to avoid the introduction of unclean things.

If you are interested in our products, you can click Varnish Wire http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ to learn more information.

12
Next, I'll show you several ways to weld Aluminum Winding Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/
. First, terminals can be crimped. Second, special aluminum welding wire and flux are used for welding. Finally, high-temperature aluminum flux is used for welding.

The common welding method for aluminum winding wire is to use special flux-cored wire to weld with an electric soldering iron. Usually, aluminum winding wire with a smaller diameter is welded with the bare aluminum welding wire, aluminum alloy welding wire, and copper wire. If this welding method is selected, the welding method for welding workpiece formation is better, with reliable quality and convenient operation.

Welding instructions: during welding, the welding head shall contact the welded body as much as possible, and the welding wire shall be sent to the welding head to melt the welding wire and complete the welding. this method can make the welding flux in the welding wire fully contact with the board surface and achieve the best welding effect. For the welding of aluminum winding wire and aluminum wires, the two wires are usually connected by twisting after painting, so the size of twisting directly affects the welding effect. The larger the twisting, the greater the amount of tin filling, the stronger the welding between the two wires. For the newly welded aluminum winding wire, don't be too impatient to pull by hand, need to be thoroughly cooled, and then check its reliability. For unused solder wire, we will use a lighter to burn the welding wire head into a ball shape to avoid the loss of liquid flux in the welding wire and affect the next welding.

If you are interested in our products, you can click Enameled Copper Clad Aluminum Wire http://www.xinyu-enameledwire.com/product/enameled-copper-clad-aluminum-wire/
 to learn more information.

13
Copper Clad Aluminum Winding Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/
 is wired with aluminum core wires as the main body and a certain amount of copper layer coated on the outside. Because the main function of this kind of wire is to transmit signals, the current flowing through it is very small. However, since the conductivity of aluminum is only 2/3 of that of copper, the national standard stipulates that it is necessary to use non-metal plated or metal-plated annealed copper wire as conductor for any wire or cable used for power transmission, and aluminum wire is prohibited as a conductor.

Copper and aluminum in copper clad aluminum winding wire are two metals with different electrode potentials. Copper and aluminum are exposed in the atmosphere on its end face. If the humidity in the atmosphere is high, the end face absorbs fine water molecules and accumulates into fine water droplets. Because there are coal-burning products or exhaust gases from many motor vehicles in the atmosphere, which are rich in SO2. SO2 is oxidized to SO3 in air and dissolved in small water droplets to form H2SO4 which corrodes the battery in acid solution, and then becomes electrolyte solution to corrode the battery. In this corroded battery, aluminum is corroded because of its low electrode potential. Even if a piece of metal is placed in an electrolyte solution without touching other metals, corrosion cells similar to the above will occur. For example, copper is often rich in a few impurities, and the potential of the impurities is usually higher than that of copper. When acidic water droplets exist on the surface of copper, the battery is formed, causing copper to suffer corrosion.

In order to avoid electrochemical corrosion of copper clad aluminum winding wire ends, the best method is to isolate the ends from the atmosphere and avoid corrosion of copper clad aluminum winding wire. Currently, two methods can be adopted:

1. Electroplating method to avoid corrosion of copper clad aluminum winding wires: plating a layer of copper on the butt joint of copper clad aluminum winding wires, but it takes too long (40 minutes). However, it is not a big problem to apply it in companies that produce copper clad aluminum winding wires, because many joints can be electroplated together. It is very difficult to plate copper on the surface of the aluminum.

2. The way to avoid corrosion of copper clad aluminum winding wires is to apply copper colored quick-drying paint: dry in less than two minutes, and the color is appropriate to copper. This is very convenient for users who use copper clad aluminum winding wire. Because the user can cut the wiring at any position, the broken end must be exposed in the air. In order to avoid electrochemical corrosion after long exposure, quick-drying paint can be applied to the end immediately. Copper and aluminum in the cross-section of copper clad aluminum winding wire are directly touched together. If electrolyte exists on the outer surface, electrochemical corrosion will occur. If the copper clad aluminum winding wire is placed indoors for a long time, electrochemical corrosion will not occur if the indoor humidity is not high. If it is exposed outdoors, the corrosion appearance will not be too severe if the corrosion object covers its end, but significant corrosion appearance will occur under the condition of frequent water.

If you are interested in our products, you can click Aluminum Winding Wire http://www.xinyu-enameledwire.com/
 to learn more information.

Pages: [1]