| 摘要 |
The invention provides an apparatus and a method for 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 proudct 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). |
