We must have heard of tempered glass in our daily lives, and even used it. Tempered glass has been widely used in various places due to its excellent performance. Tempered glass is obtained by cutting ordinary annealed glass into the required size, heating it to around 700 degrees near the softening point, and then rapidly and uniformly cooling it (usually 5-6MM glass is heated at 700 degrees for about 240 seconds and cooled for about 150 seconds). So, what are the quality standards for tempered glass?
What are the quality standards for tempered glass? Come and take a look!
- Size:
1) The allowable dimensional deviation for the length and width of formed glass products is equal to or less than plus or minus 1MM
2) The allowable size deviation for straight lines of formed glass products is equal to or less than plus or minus 1MM
3) The allowable dimensional deviation for the radius of bent steel glass (R position) is equal to or less than plus or minus 5MM
4) The allowable size deviation of the hole position is equal to or less than plus or minus 0.5MM
5) The allowable size deviation of the diagonal is equal to or less than plus or minus 1MM - Tempered steel quality standards:
- 1) Impact resistance: According to GB/T9963-1998 standard
- 2). (6MM thick) Fragment state: More than 45 fragments per 50MMX50MM range
- 3) The allowable self breakage rate of glass is around 1% 0
- Surface quality requirements:
1) The surface is not allowed to have stones, cracks, missing corners, or color marks
2) Allowable scratch width ≤ 0.1mm, length ≤ 15mm: Such scratches are allowed to be less than one per piece of glass
3) Each piece of glass is allowed to have one 0.1mm bubble - The silk screen stripes have uniform thickness, equal spacing, no interruption, burrs, bends, and other phenomena
That’s all for the quality standards of tempered glass. I believe everyone should have a clear understanding now. If you want to learn more information, you can follow us more! We mainly engage in the production of tempered glass, horizontal tempered glass, insulated glass, laminated glass, frosted glass and other series of products. Welcome to order!