发明名称 |
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摘要 |
<p>1500099 Laminated glass ASAHI GLASS CO Ltd 12 Aug 1976 [9 Sept 1975 25 Dec 1975] 33633/76 Heading B5N A laminated glass windshield comprises two sheets of glass bonded with an interposed plastics layer, e.g. polyvinyl butyral or polyurethane, each of the glass sheets having a thickness of 1À5 to 2À5 mm. and having a plane compressive stress of 200 to 500 kg./cm.<SP>2</SP> at the peripheral part of at least the outer surfaces thereof. The windshield may be made by simultaneously shaping two sheets of plied glass by heating them on a bonding mould at 550‹ to 650‹ C., quenching the peripheral parts of the plied glass sheets, at a quenching rate of 85‹ to 160‹ C. per minute, to a temperature of from 450‹ to 550‹ C. so as to impart a plane compressive stress at the peripheral part of the glass sheets; arranging the glass sheets with an interposed plastics layer therebetween, with their peripheral surfaces having the plane compressive stresses facing the outside; and bonding the resultant assembly by heat-pressing. Quenching may be effected by air. In an alternative procedure, a glass sheet has the plane compressive stress imparted thereto by placing it on a gas bed of a gas furnace and heated to 550‹ to 650‹ C., moved on to a bending mould and shaped by sucking it on to the surface of the mould.</p> |
申请公布号 |
DE2640206(C2) |
申请公布日期 |
1984.04.12 |
申请号 |
DE19762640206 |
申请日期 |
1976.09.07 |
申请人 |
ASAHI GLASS CO. LTD., TOKYO, JP |
发明人 |
FURUKAWA, YASUHIKO;IGARASHI, TSUYOSHI, TOKYO, JP |
分类号 |
B32B17/10;C03B23/025;C03B27/044;C03C27/12;(IPC1-7):03C27/12 |
主分类号 |
B32B17/10 |
代理机构 |
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