Apparatus for the extrusion method and a method of processing a metal or plastic profile

摘要

PCT No. PCT/DK93/00128 Sec. 371 Date Nov. 9, 1994 Sec. 102(e) Date Nov. 9, 1994 PCT Filed Apr. 6, 1993 PCT Pub. No. WO93/19862 PCT Pub. Date Oct. 14, 1993The method and apparatus are utilized in the extrusion of profiles of material suitable for extrusion, such as metal or plastic. In the method of the invention, the temperature of the extruding product 10 is measured continuously and without contact immediately outside the extrusion outlet 7, and the data measured are used to adjust the said temperature to the effect that the temperature of the extruding product is maintained as constant as possible from one product to the next, whereby controlling devices 17, 18, 19 20, 21, 22 are provided to adjust the extrusion pressure on the basis of a calculation of the values measured and to check the quality of the profile and the geometric dimension for comparison with the predetermined values. The apparatus comprises an extrusion machine 1 having a measuring device for measuring the temperature at the outside of the outlet 7 continuously and without contact, said device 11 being a camera 11 responsive to infrared radiation, as is the case with a device 16 for measuring the temperature of the workpiece 6.