发明名称 |
Low density oriented strand boards |
摘要 |
A method of producing a strand board having an average density of between 450 and 550 Km/m<3 >by providing a first set of strands having a moisture content of between 25 and 45% based on the dry weight of said strands and a second set of strand having a moisture content of between 5 and 7% based on the dry weight of said strands and forming a lay-up having a core layer formed of strands from the second set of strands sandwiched between a pair of surfaces layers each formed from strands of the first set. The lay-up is then pressed between heated platens into a consolidated panel having an average density of between 450 and 550 Km/m<3 >by closing the platens to the thickness of said consolidated panel in less than 30 seconds and raising temperature the said core layer to 100° C. in less than 35 seconds without increasing the core gas pressure above 0.17 Mpa.
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申请公布号 |
US2004067334(A1) |
申请公布日期 |
2004.04.08 |
申请号 |
US20020265453 |
申请日期 |
2002.10.07 |
申请人 |
NEXFOR INC. |
发明人 |
SEAN SY TREK;BRUNETTE GILLES |
分类号 |
B27N3/00;B27N3/04;B32B5/12;B32B5/16;B32B21/02;(IPC1-7):B32B5/12 |
主分类号 |
B27N3/00 |
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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