发明名称 |
Gypsum board perforation method for e.g. acoustic construction/decoration elements in building construction field, involves moving punch at advancement speed of specific value, perforating gypsum board using punch, and withdrawing punch |
摘要 |
<p>The method involves placing a punch on a side of a gypsum board presenting a decorative covering at 90 degrees with respect to the gypsum board. A die is placed on a side of the gypsum board not presenting the decorative covering. The punch is moved at advancement speed ranging between 6 to 10 meters per minute. The gypsum board is perforated using the punch, and the punch is withdrawn.</p> |
申请公布号 |
FR2939352(A1) |
申请公布日期 |
2010.06.11 |
申请号 |
FR20080006886 |
申请日期 |
2008.12.09 |
申请人 |
LAFARGE PLATRES |
发明人 |
SAINTAGNE FREDERIC;VALENTI EMMANUEL |
分类号 |
B28D1/14;B44C5/04;E04C2/04 |
主分类号 |
B28D1/14 |
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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