| 摘要 |
A method of making a building panel provided with an integral lifting element, such as a lightweight building panel made from autoclaved aerated concrete having an insert provided with exposed ends for engaging with one or more lifting devices, and a central section embedded in the building panel to secure the lifting element to the building panel, includes locating the lifting element in a mold and retaining the lifting element in a correct position and orientation using a retainer. A lower former is positioned in the mold corresponding to the location of an access void into which one exposed end of the lifting element extends, and an upper former is located at the upper end of the mold to engage with the other end of the lifting element to form an access void around the other exposed end of the lifting element. Molding of the access void in the building panel provides clearance for attaching lifting devices to the panel so that multiple building panel is can be lifted in unison. |
