WEAR RING AND WEAR PAD FOR CONCRETE PUMP USING LASER CLADDING

摘要

The present invention relates to an aluminum window frame. The aluminum window frame comprises a pair of horizontal beams (100, 102) and a pair of vertical beams (104, 106) mounted on each other. Aluminum pipes (108, 110) longer than the horizontal beams (100, 102) are inserted into the middle of the horizontal beams (100, 102). Through holes (115) are formed on the upper and the lower ends of the vertical beams (104, 106) assembled on both sides of the horizontal beams. The aluminum pipes are inserted into the through holes, and the vertical beams are forcibly pressed towards the horizontal beams to mount the vertical beams and the horizontal beams on each other. A taper member (117) whose outer circumferential surface is tapered is forcibly inserted into a hollow space of the aluminum pipe to spread an end of the aluminum pipe to prevent the vertical beams and the horizontal beams from escaping from each other.;COPYRIGHT KIPO 2016