公开(公告)号：US5626807A

公开(公告)日：1997-05-06

申请号：US498817

申请日：1995-07-06

Applicant: Stephen O'Halloran

Inventor： Stephen O'Halloran

IPC: B29C47/90

CPC classification number: B29C47/0828 ,  B29C47/0019 ,  B29C47/003 ,  B29C47/90 ,  B29C47/904 ,  B29C47/908 ,  B29C47/884

Abstract: A method and apparatus for making U-shaped retaining wall members includes a combination of an extrusion die station, a calibration station, a heavy duty puller such as a tire puller and a travelling saw. The calibration station includes a series of calibration blocks which are spaced apart in an increasing fashion and controllably cooled to subject the extruded product exiting the extruding station to a controlled temperature gradient to prevent thermal shock.

Abstract translation: 用于制造U形挡墙构件的方法和装置包括挤出模头站，校准站，诸如轮胎拉拔器的重型牵引器和行走锯的组合。 校准站包括一系列校准块，其以增加的方式间隔开并且可控地冷却以将挤出产物离开挤出站进行控制的温度梯度以防止热冲击。