High-frequency welding is a new type of welding process that uses the skin effect and neighboring effect produced by high-frequency current to connect steel plates and other metal materials. Excessus et maturitas technologiae magnae frequentiae glutino est processus key in productione fistulae ferri ERW. Qualitas summus frequentiae glutino directe afficit altiorem vim, qualitatem gradus et productionem celeritatis fistulae iunctarum productorum.
Principium fundamentale altae frequentiae glutino:
The so-called high frequency refers to the frequency of the alternating current of 50Hz, and generally refers to the high frequency current of 50KHz to 400KHz. Cum summus frequentia vena per conductorem metalli transit, duo effectus peculiares producuntur: effectus cutis et effectus propinquitas. High-frequency welding uses these two effects to weld steel pipes. Quid ergo sunt isti duo effectus?
The skin effect means that when an alternating current of a certain frequency passes through the same conductor, the current density is not uniformly distributed across all sections of the conductor. Maxime incumbet in superficie conductoris, id est, densitas currentis in superficie conductoris alta est. In conductore densitas parva est, quam ad vivum vocamus: "cutis effectus". Effectus cutis plerumque e regione hodiernae profunditatis acumine metienda est. Quo minus penetratio profundior, eo magis cutis effectum significant. This penetration depth is proportional to the square root of the resistivity of the conductor, and inversely proportional to the square root of frequency and permeability. In laicis, quo frequentior est altior, eo magis currens contrahitur in superficie laminae ferreae; the lower the frequency, the more scattered the surface current is. Animadvertendum est, quamvis ferrum sit conductor, magnetica eius permeabilitas sicut temperatus oritur decrescet. Hoc est, cum temperatura laminae ferreae augetur, magnetica permeabilitas decrescet et effectus cutis decrescet.
The proximity effect refers to the fact that when high-frequency current flows in opposite directions between two adjacent conductors, the current will flow intensively to the edges of the two conductors. Etiamsi duo conductores aliam partem breviorem habent, praesens non sequitur. Iter brevius fluit, hunc effectum appellamus: "proximitas effectus".
Propinquitas effectus essentialiter debetur reacentiae inductivae, quae primas partes agit in summo frequentiae incursu. Propinquitas effectus crescit sicut creber crescit et distantia conductorum finitimorum propius fit. Si nucleus magneticus circa conductorem finitimum addatur, summus frequentia vena magis in superficie fabricae erit contractior.
Hi duo effectus fundamentum sunt ad intellegendum summus frequentia metallica glutino. High-frequency welding uses the skin effect to concentrate the energy of the high-frequency current on the surface of the workpiece; et effectus propinquitatis utitur ad refrenandum situm et amplitudinem summus venae frequentiae semitae. Praesens velocitas velocissima est. Potest calefacere et conflare margines adiacentium laminae ferreae in brevi tempore, et per extrusionem compagum explorare tibus.
