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new products

EE65 High Power Transformer Horizontal Frame
EE65 single phase transformer. Horizontal EE65 bobbin 8+8 pins. Bobbin Size=51.5mmX43.7mmX54.8mm. Parallel Distance=44.5mm. Pin pitch=5.0mm. Good quality EE65 encapsulated transformer, singled packed with carton.
EF30 Power Transformer Vertical Bobbin 6+6 Pin
EF30 rectifier transformer. 6+6 pins vertical EF30 coil former. Bobbin Size=35.3mmX19.0mmX34.8mm. Pin pitch=5.08mm. Parallel Distance=15.24mm. SMPS transformer has small size, high power and low cost, we design and manufacture high frequency transformer.
High Current DIP Type Inductor High Frequency Power Inductor
DIP type high frequency inductor has low cost, shielded construction, very low DC resistance. It’s easy customized and high frequency range can up to 1.0 MHz. Our large current products are all lead-free. (RoHS)
ETD44 High Frequency Transformer Ferrite Core 120~180W Flyback Transformer For LED Drive Power
ETD44 high frequency flyback transformer power range is 20~800W. Usage:DC converters,drive transformers,PFC inductors.Winding:Auto-transformer.

Solid and Hollow Magnetic Ferrite Core YO Series Ferrite Core

High frequency welding rod core working environment determines it must have a certain corrosion resistance,high temperature resistance,some places need magnetic induction intensity is relatively strong.

brand:
MCT
item no.:
YO Series(Solid and hollow type)
shipping port:
Shanghai

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product description

High frequency welding rod core working environment determines that it must have a certain corrosion resistance, high -temperature resistance, by using different magnetic thickness can get different magnetic induction intensity and some places need magnetic induction intensity is relatively strong.

The choice of different high frequency welding rod core magnet can determine the maximum magnetic induction intensity and temperature performance, generally to welding in the conventional 1 inch diameter high frequency magnetic NdFeB magnets do surface magnetic induction intensity of more than 12000 Gauss need more than N40 material. The welding rod core in the temperature more than 150 degrees above the general choice of alnico high temperature resistance.

Solid and Hollow Magnetic Ferrite Core YO Series Ferrite Core

TYPE
RC5×100	RC7×140	RC17×140	RC8×200	RC20×200	RC10×70
RC6×100	RC8×140	RC18×140	RC9×200	RC22×200	RC11×70
RC7×100	RC9×140	RC20×140	RC10×200	RC24×200	RC12×70
RC8×100	RC10×140	RC22×140	RC11×200	RC25×200	RC14×70
RC9×100	RC11×140	RC24×140	RC12×200	RC28×200
RC10×100	RC12×140	RC25×140	RC13×200	RC30×200	RC8×120
RC11×100	RC13×140	RC28×140	RC14×200	RC32×200	RC10×120
RC12×100	RC13.5×140	RC30×140	RC15×200	RC35×200	RC10×160
RC13×100	RC14×140	RC32×140	RC16×200	RC36×200	RC12×120
RC13.5×100	RC15×140	RC35×140	RC17×200	RC38×200
RC14×100	RC16×140	RC36×140	RC18×200
RC15×100		RC38×140
RC16×100
RC17×100
RC18×100
RC20×100
RC22×100
RC25×100
RC30×100

What is High frequency welding technique?
High frequency welding technique is a new type of welding technology which uses the skin effect and the adjacent effect produced by the high-frequency current to connect the steel plate and other metal materials. The emergence and maturity of high frequency welding technology, it is the key process of the straight welded pipe (ERW) production. The quality of high frequency welding directly affects the overall strength, quality grade and production speed of welded pipe products.
Brief introduction high frequency. skin effect and proximity effect
1.The so-called high frequency, is relative to the AC current frequency of 50Hz, generally refers to the 50KHz~400KHz high frequency current. High frequency current passing through metal conductor, will produce two kinds of strange effects: skin effect and proximity effect, high-frequency welding is the use of these two effects to carry out welding of steel pipe. So, what's the effect of these two effects?
2.The skin effect refers to a certain frequency alternating current through the same conductor, all cross current density is not evenly distributed in the conductor, it will mainly to the surface of the conductor, the current in the conductor surface density, in the internal conductor density is small, so we called "skin effect". The skin effect is usually measured by the penetration depth of the current, and the smaller the penetration depth, the more remarkable the skin effect. The penetration depth is proportional to the square root of the resistivity of the conductor, and inversely proportional to the square root of the frequency and permeability. Generally speaking, the higher the frequency, the more concentrated the current is on the surface of the steel plate; the lower the frequency, the more dispersed the surface current. It must be noted that although the steel is a conductor, its permeability will decrease with the increase of temperature. That is to say, when the temperature of steel plate rises, the permeability will decrease and the skin effect will decrease.
3.The proximity effect refers to the high frequency reverse current in the conductor two adjacent flow, current to the two conductor near edge flow, even if the two conductor in a short while, the current does not flow along the route is short, the effect is called: "proximity effect".
The proximity effect is essentially due to the inductive effect, play a leading role in the high frequency inductive current. The proximity effect increases with the increase of frequency and the distance between adjacent conductors. If a magnetic core is added around the adjacent conductor, then the high frequency current will be more concentrated on the surface of the workpiece.
4.These two effects are the basis of high frequency metal welding. High frequency welding uses the skin effect to concentrate the energy of the high frequency current on the surface of the workpiece, and uses the proximity effect to control the position and range of the high frequency current flow path. The speed of the current is very fast. It can melt and fuse the adjacent steel plates in a short time, and realize the butt joint by extrusion.

If you have any questions, please contact us or leaving your comments, we will give you fast reply.

Email: sales003@mycoiltech.com

Skype: sales003_125

Contact: Lily Yu

related tags :

YO Series (Solid and hollow type)ferrite core Magnetic core YO series ferrite core High frequency welding rod core

SQ Soft Magnetic Ferrite Core for Filter Inductor High Frequency Low-loss and Big UU Series Ferrite Core

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