The types and causes of cracks in glass wine bottles, water ripples: The water ripples on the cross section of laminated glass are arc-shaped and intersect with a vertical surface. The crack is transmitted from the inside of the water ripple to the outside world. The water ripple tightly coils around the crack source and spreads outward radially. Thus one can track the source of the crack. The common laminated glass section has a shiny appearance.
The glass bottle manufacturer should use the reflective surface light source to observe, only to see the wave pattern like the water wave pattern, the pattern: the appearance of the crack on the cross section of the laminated glass is straight or curved. The appearance of straight or curved lines on this kind of crack section is constantly parallel to the widening of the crack. Sometimes it also shows a series of straight lines, or feather-like appearance.
This type of pattern can usually be felt based on contact, and the stay pattern: during the entire process of the glass bottle and jar inspection, sometimes the visible ripples can be seen on the cross section formed by the cracks in the laminated glass. A deep impression mark that shows the starting and stopping cracks, or a deep impression mark at the beginning of impact cracks, etc. Such crack marks can be relatively shallow, and can generally track the source of the crack.
Zigzag: It is caused by the excessive kinetic energy that needs to be formed when the crack accelerates to develop, and the edge of the mirror glass that generates the crack. The fine zigzag pattern is a dark gray, misty area tightly coiled around the mirror glass of the crack source. The non-lubricated zigzag pattern is a radial area spreading over the fine jagged surface.
The zigzag marks are formed on the surface that supports the supporting force, but it is not easy to broaden the appearance of the laminated glass that tends to be relative. The general visualization information shows that the bending stress produced by the reverse side due to the appearance design plan, the laminated glass throughout the situation, and the thickness of the glass can be used to distinguish and accurately measure the size of the in-situ stress at the time of cracking.