发明名称 |
GLASSPLATE FOR ANVENDELSE SOM SIDE- ELLER BAKVINDU FOR ET MOTORKJOERETOEY |
摘要 |
Thermally toughened glass sheets of thickness 2.5 mm to 3.5 mm, for use as motor vehicle side or rear windows, are produced by differential quenching producing a distribution of regions of more highly toughened glass interspersed with regions of lesser toughened glass. The average central tensile stress is in the range 62 MN/m2 to 53 MN/m2, and there is a distribution of areas in which the principal stresses acting in the plane of the glass sheet are unequal. The principal stress difference in some of the areas is at a maximum in the range 8 MN/m2 to 25 MN/m2, the major principal stresses in adjacent areas in which the principal stress difference is a maximum are in different directions, and the distance between the centers of such adjacent areas is in the range 15 mm to 30 mm. |
申请公布号 |
NO143936(C) |
申请公布日期 |
1981.05.13 |
申请号 |
NO19770000736 |
申请日期 |
1977.03.03 |
申请人 |
TRIPLEX SAFETY GLASS CO, |
发明人 |
BOARDMAN, JAMES,;ASH, PETER MICHAEL, |
分类号 |
C03B23/023;C03B27/00;C03B27/052;(IPC1-7):03B27/04 |
主分类号 |
C03B23/023 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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