发明名称 |
(B C) ;GLASSKIVA FOER ANVAENDNING SOM SIDO- ELLER BAKRUTA I ETT MOTORFORDON OCH FOERFARANDE FOER FRAMSTAELLNING AV DENNA GLASSKIVA |
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 |
FI770683(A) |
申请公布日期 |
1977.09.06 |
申请号 |
FI19770000683 |
申请日期 |
1977.03.03 |
申请人 |
TRIPLEX SAFETY GLASS CO LTD |
发明人 |
BOARDMAN JAMES;ASH PETER MICHAEL |
分类号 |
C03B23/023;C03B27/00;C03B27/052;(IPC1-7):C03B/ |
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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