Heat resistance grade of enameled wire

enameled aluminum wire is composed of aluminum conductor and insulation materials, which is insulated with a thin film or coating and creates a magnetic field when the wire is would in a coil and power is applied. Aluminum Conductor is main type of enameled wire.

1. What factors affect the softness of the enameled wire and the elongation?

The softness and elongation are good to reflect the quality of the copper quality and the enameled annealing process, and they have a big relationship for the quality of the winding.

2. What is the effect of the thickness of the paint film?

The first tasty or coated is too thick to affect aging performance. The furnace temperature control has a greater impact on aging performance.If the evaporation zone is too sharp, it has a sparp and porront on the paint film, which is poor in these places. The heat of it is high, affecting the thermal aging performance.

3. EffectWhat are the reasons for the bucket breakdown voltage?

Oxe film circle. Overseas impurities in the paint film. Curing. The thickness of the paint film

4. What are the factors affecting the thermal shock??

Influence of the kitcase process. The effect of copper wire. Influence of paint

Telephone cable is usually thought of only as a communication medium operating at a normal 48 Vdc level. But telephone cable is regularly used by telephone operating companies to supply power to remote telephony equipment such as: PCM (Pulse Code Modulation) repeaters, FDM (Frequency Division Modulation) repeaters, telegraph and various types of control circuits. The normal talk battery voltage is regularly exceeded in the case of long subscriber loops utilizing loop extenders and on dial long line circuits which operate in the 70 to 100 Vdc range. For these applications, the referenced devices are generally current limited to approximately 150 milliamps. In all such cases, normal telephone industry practice usually limits pair-toground applied voltage to 150 Vdc, and pair-to-pair voltage is usually limited to 300 Vdc.

Wire for winding used in electrical equipment is generally called magnet wire. Simply put, ¡°Magnet wire is used for interchanging electrical energy with magnetic energy¡±.
Magnet wires are broadly divided into enamelled wire (coating insulation), covered conductor wire (fiber/film insulation), other specially formulated wire, and combinations thereof.

Magnet Wire: enameled wire, winding wire, enamelled wire, magnetic wire, conductor covered
Type: copper winding wire, aluminum enameled wire
Application: motors, generators, transformers, and electric vehicles
Thermal Class: 130, 155, 180, 200, 220, 240

1. Mechanical functions: including elongation, rebound angle, softness and adhesion, paint scraping, tensile strength and other items.
(1) Elongation reflects the plastic degeneration of the material and is used to check the ductility of the enameled wire.
(2) The rebound angle, the softness reflects the elastic deformation of the material, and is used to check the softness of the enameled wire.
¢ÇThe durability of the paint film includes winding and stretching, that is, the promised tensile deformation of the paint film without cracking when the conductor is stretched and deformed.
(4) The adhesion of the paint film includes snap-off and peeling. First, check the adhesion of the paint film to the conductor.
(5) The scratch resistance test of the paint film reflects the strength of the paint film against mechanical scratches.

Correspondence table of enameled wire diameter and resistance value
The resistivity of the copper wire ρ= 0.0172, the aluminum wire ρ = 0.0283, the wire resistance calculation formula:
R=ρ×L/S
(L = wire length, unit: meter, S = wire cross section, unit: mm^2)

The current mainly passes along the copper-clad aluminum wire on the surface of the wire, which is called the skin effect. The higher the frequency, the more obvious it is. The copper-clad aluminum wire uses this feature to save material. But its resistivity is slightly higher than that of pure copper wire, and the resistivity is also different with the thickness of the copper clad.

Double Glass-fiber Covered Rectangular Aluminum Wire is a kind of winding wire made by electrician round aluminum rod drawn or extruded into a rectangular conductor by a certain specification die, and then a double glass fiber insulation layer is wrapped on the rectangular conductor.

Magnet wire or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation. It is used in the construction of transformers, inductors, motors, generators, speakers, hard disk head actuators, electromagnets, electric guitar pickups and other applications that require tight coils of insulated wire.

Copper Magnet Wire Manufacturing Process includes important three steps – enameling, winding and Inorganic insulated wires. Mainly introduce the method to ensure the quality of copper enameled wire.

Heat Level 180C Fiberglass Covered Copper Magnet Wire
Performance advantages: It has the characteristics of good voltage breakdown resistance and high mechanical strength of the insulating layer.
Product use: Mainly used for AC motors as windings.

Springiness of Round Enameled Wire is one of important performance in accordance with the IEC standards to ensure the quality of Round Enameled Wire. How to improve the performance, the article introduce how to operate the enameling machine, during the manufacturing process of enameled wire, the worker shoule be focus on some points.

Paper-covered Aluminium magnet wire deliver excellent performance when used with oil such as transformer oil. A paper with a small hygroscopicity, mechanical strength, good permeability for oil, and high dielectric strength should be selected.

Application of Telephone cable paper covered insulated Aluminum magnet wire strip:
Paper covered Aluminum magnet wire is used in oil-immersed transformer and other similar electrical coil windings.

Principle: Water molecule (HHO) decomposes water into oxygen and hydrogen through electrolysis. Hydrogen is combustible. Oxygen supports combustion. These two gases are ignited to form a hydrogen-oxygen flame. In layman’s terms, “water turns into fire”

Winding wires used in electrical equipment are usually called magnetic wires. In other words, “magnetic wires are used to exchange electrical energy and magnetic energy.” Magnetic wire is roughly divided into enameled wire (insulation coated) and coated wire (fiber/film insulation) and their combinations. The two types of magnetic wires and their performance are very different. ASTM (American Society for Testing and Materials) B193, no more than 0.017241 ohm (square millimeter/meter), the film or coating should meet the latest version of ANSI, ASTM or NEMA applicable standards, and modify the specified resin. The modified resin is Chemically changed resin, or containing one or more additives to retain the basic chemical characteristics of the original resin to enhance certain performance or application characteristics, the coated conductor needs to meet all the required test requirements of the appropriate NEMA standard (UL certification project) .

Aluminum bare magnet wire (Anodized Bare Aluminium wire) belongs to the special electromagnetic wire and the insulation layer is the aluminum oxide .Because of no thermal aging phenomenon, it can be used as insulation level of class 220.
The insulation layer of such product is thin, high temperature resistance and insulation performance stability,which is the best choice for low voltage winding wires with producing high temperature, poor environment, heat dissipation difficulty and so on. It can widely be used in electromagnetic industries at home and abroad.

Enameled Aluminum Wire connects Enameled Copper Wire with the short service life according to the test. The contact part of the enameled copper wire and the enameled aluminum wire will accelerate the oxidation of the aluminum wire.

Transformer insulation wire is usually circular. Silk covered wire, also known as cotton covered wire, it is a thread or yarn on copper coated insulation materials, such as to increase the mechanical strength and dielectric strength of the wire.

Product Introduction :
Nomex covering corresponds to class H insulation is mainly used in the construction of condensers and capacitors. Main application of it is in shielding of cables in high temp. environments (200¡ãC) such as dry type transformers, military and aerospace cables. Nomex covered conductors are more effective in condition where temperature resistance and dielectric strength requirements are high.

By extrusion of bare aluminum wire wrapped and Nomex Paper covered wire, the mechanical performance and electrical performance better, instead of making difficult composite enameled flat wire, suitable for transformer, winding of lifting electromagnet, electric welding machine and other products.

Class F Glass Fibre Insulated Aluminium strips is a high-quality aluminum wire that is evenly wrapped with alkali-free glass fiber. It is impregnated and baked with the required temperature resistance index and compatible bonding paint to make the glass fiber between the glass fiber It is bonded to the conductor as a whole, and the insulating layer has a certain degree of wear resistance, adhesion, flexibility and voltage resistance. This type of winding wire has good thermal shock and overload resistance. At present, the temperature resistance index of this kind of products has three grades: 130, 155, and 180. F grade refers to 155 grade.

Advantages of enameled CCA wire:
As envelope alternatives of pure enameled copper wire, it has good performance of high frequency transmission, originally it was applied in various types of high-frequency electromagnetic induction coil; now in order to save more production cost, ECCA wire has been widely used in various types of electronic coils, transformers, inductors, rectifiers, and all kinds of large and small motors, and has excellent soldering performance. Its density is low, the weight of the unit product can at least save 40% of the copper wire, it can save a lot of cost of production material.

Brand Name: LP Magnet Wire
Certification: UL,SGS,RoHS,ISO9001
Conductor Material: copper or aluminum
Bobbin: 30kg/50kg/150kg wooden spool
Diameter: round:2.0-7.0; flat:a:1-10,b:3-35
Model Number: Paper Coated Copper Wire

1. Mechanical function: including elongation, return angle, softness and adhesion, scraping, tensile strength and other items.
2. Heat resistance: including thermal shock and softening breakdown test.
3. Electricity includes: breakdown voltage, lacquer film continuity and DC resistance test.
4. Chemical resistance includes solvent resistance and welding.

Enameled wire production water also has many uses, and similarly, the requirements for water quality are also different. According to the water quality requirements of the purpose of use, it can be divided into: annealing furnace sealing water, equipment cooling water, lubricant manufacturing water, etc.

Electrical wiring to be run in conduit comes in individual strands, encased in insulation to protect the wire and insulate it from other wires and the conduit. Wires come in ither solid or stranded, depending on the wire size. Bare conductors are available for ground wires only. The insulation is made to take on some rather extreme conditions. Heat-, oil-, gasoline- and water-resistant coatings are all available to help your Insulated electric wire survive.

After the temperature resistance level is exceeded, the insulation layer will age, melt and crack. The result is that the insulation capacity is greatly reduced, and it is prone to increased loss, short-circuit failure, etc.

The main advantages of fiberglass covered wire are:
1. The quality factor Q value is large;
2. Because it is twisted by multiple enameled wire bundles, it has good flexibility and can reduce the skin effect;
3. Because it is composed of polyurethane enameled wire, the dielectric loss angle is small, and it has direct solderability.
The disadvantage is: poor moisture resistance.

The paper covered wire is a type of enameled wire that is extruded or pulled by an oxygen-free copper rod or an electrical circular aluminum rod, and then annealing the wire, and then winding two layers or two layers of insulating on the copper (aluminum) conductor.Paper (including telephone paper, cable paper, high voltage cable paper, turns], suitable for oil immersion transformer coils and other similar electrical windings.Electrical bare copper (aluminum) wires produced by extrusion process are the most ideal materials for the production of cable paper wraps.

What is the first thing to make the enamel wire? And the manufacutring process of enameled wire is important, the extruding and baking. And the raw materials: copper conductor or aluminum conductor is enough for client’s requiremnets

Copper Clad Aluminum Wire is a new enameled wire, is composed of aluminum conductor covered with copper materials, maybe self-bonding, also called self-bonding enameled wire. And the short word is ECCA.