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FAQ

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Shielding is the isolation of metal between two space regions to control the induction and radiation of an electric field, magnetic field and electromagnetic wave from one region to another. Specifically, the interference source is used will shield components, circuit and assembly, cable or whole system surrounded by preventing electromagnetic interference shielding body outward diffusion; receiving circuit, device or system surrounded, to prevent them from the influence of external electromagnetic field. Because of shielding from external wires, cables, components, circuits or systems such as electromagnetic interference and internal electromagnetic wave plays an energy absorption (eddy current loss), reflection energy (reflection of electromagnetic waves on the interface of the shield and energy (on) offset by electromagnetic induction electromagnetic field in reverse, shielding layer can be offset the effect of electromagnetic wave interference), so the shield has the function of reducing interference. (1) when the frequency of electromagnetic interference is higher, the eddy current generated by the low resistivity metal material is used to counteract the electromagnetic wave, so as to achieve the shielding effect. (2) when the interference of electromagnetic wave in low frequency, using high permeability material, so that the magnetic shielding limit in the internal space to prevent the spread of the shield. (3) in some cases, if the high frequency and low frequency electromagnetic fields are required to have good shielding effect, different metal materials are often used to form a multi-layer shielding body.

nan

Metal fence and lightning belt connection do not connect with the high density, as long as there is in the downlead position using 12 round metal protective net belt and lightning cross connected, as much as possible to reduce the network protection metal protective layer damage.

What are the differences in the use of woven mesh, plain weave and twill weave?For example: from the aspect of stress, the strength of the twill than the plain to be large, etc.Plain woven nets are expensive and are more likely to be filtered or protected in the primary use, while the twill ones are notPlease answer the detailed points, thank you!

It is time to take the mat, the specific method, take 10 cushions all strong to 4

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The general use of 250 wide network, one is considered slightly larger than 100*2; first, because the width of each roll of the network is the size of the specification is divided into four, but not wasted

I have never done this before, I went to the interview today, said the past training tomorrow

I'm doing this, half of this line is luck, and then I need eloquence

nan

It is like an antenna, it will receive some electromagnetic signals, thus interfering with the television signal

nan

That is, the length of the net curtain increased 1.5 times -2 times. The total price of metal mesh curtain = height * length * fold rate * unit price.

nan

Net (Grille), also known as the car's front face, face, grille and water tank cover, etc.. Its main role is the water tank, engine, air conditioning and other air intake, to prevent the movement of foreign objects on the inner parts of the car and the destruction of the aesthetic personality. In automotive engineering, the net is used to cover the body to allow air to enter