| 摘要 |
<p>A plastic is injected into a mould in the cavity between two walls so that the plastic forms a bond between the two walls. The plastic is injected through inlets and presser elements are advanced into the inlets to clear them of plastic after injection, and pusher elements clear away the waste plastic. The operation of the presser elements and pusher elements to clear the inlets takes about 0.5 secs. The method is used for injecting plastic into the cavities of walls of buildings. After moulding the operation is quickly and neatly finished off.</p> |
