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竹编胶合板用途很多,其中一种是用胶合板做现浇混凝土墙体的模板,把胶合板铺设在钢骨架上做大模板的面板,以替代钢板,浇筑出的混凝土墙体平整光洁。但是,在这种大模板上开设对拉螺栓的圆孔却有些毛刺或毛边。以往钻这种孔是使用普通钻头,直接钻孔后使用,胶合板开孔后,孔内侧被穿墙螺栓穿来穿去,不断磨损,逐渐产生毛边、飞刺、孔径变形、孔边破坏,浇筑出的混凝土在穿墙螺栓处表面不光洁、破损、不规则。怎么办呢?我们搞了一个小改革,给胶合板孔眼加
Bamboo plywood is used for many purposes, one of which is the use of plywood as a template for cast-in-situ concrete walls, and the plywood is laid on the steel frame to form a panel with a larger plate to replace the steel plate, and the poured concrete wall is smooth and clean. However, there are some burrs or burrs in the round holes that open the pull bolts on this large formwork. In the past, this kind of hole was drilled using ordinary drills and used directly after drilling. After the plywood was drilled, the inside of the hole was worn through the wall bolts. The wear continued, causing burrs, flying burrs, deformation of the holes, damage of the holes, and pouring. The surface of the concrete at the wall bolt is not smooth, damaged or irregular. How do we do a little reform and give plywood holes plus