How to identify whether the real toughened glass -

Many of you know, shower room USES the glass is tempered glass, but the common glass and toughened glass from the appearance, it seems, no difference, so how to recognize it, as the top ten brand shower room below - — Shower room to explain for everybody. This must be from the toughened glass manufacturing principle to analyze. Toughened glass is from ordinary annealed glass cut into required size, and then heated to nearly softening point and then get after rapid and uniform cooling. Toughened glass processing, uniform surface compressive stress, the internal tensile stress form, can significantly enhance improves the performance of the glass. Tensile degrees are three times more than ordinary annealed glass, impact resistance and ordinary annealed glass more than five times. And the characteristics of formal stress characteristics become an important characteristic to identify true and false of toughened glass. In toughened glass through polarized light in the glass edge can see color stripe, and on the glass surface observation can see black and white spots. Polarized light can be found in the camera lens or lenses, observe when pay attention to the adjustment of the light source, so you can easily find it. General factory will be on toughened glass has a 3 c safety certification mark of quality. Easy to say, I will bring a polarizing sunglasses, you will find that can see colour stripes; Without tempered lens can see. Change a point of view, is also the glass surface is there wind pressure spot, you will see the whole panel glass is irregular shape. See the side is because, in toughened glass processing, soften, flatness deterioration for roller reason, face to face, in the middle of the gap is an oval. In other words, the roughness of toughened glass is even poorer than common glass. Has one of the most simple method: put the two pieces of glass to stand close to together face to face, and then looked at two long side of the two pieces of glass, looked at the two pieces of glass have obvious gap between long side, if there is gap, to pay more attention to whether a certain arc. If yes, that's a toughened glass. To note here, must be face to face, not back. Or, you can also use two X-ray film from the exposure to the light. In profile 70 ° view, will see tempered after blue wind spot, glass flatness will have obvious decline than common glass.