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公开(公告)号：BG100034A
公开(公告)日：1996-07-31
申请号：BG10003495
申请日：1995-09-28
Applicant: HOECHST AG
Inventor： PLATZER STEPHAN J , MACKERT WALTER , NEUBAUER RUDOLF
Abstract: The mechanical roughening of the surface of a pad for a printing forms made of aluminium or aluminium allow is made by wet treatment with a brush making use of a brush-type roller (1) on the surface of which seven brushing stripe (2, 3) are arranged one next to other having stricks of organic fibres (22) and metal wires (33). The suspension used for the wet brushing treatment contains 5 to 80 wt.% abrasive particles in water.
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公开(公告)号：BR9201678A
公开(公告)日：1992-12-15
申请号：BR9201678
申请日：1992-05-05
Applicant: HOECHST AG
Inventor： SCHMIDT HUGO , RUCKSZIO MANFRED , HAAS RAIMUND , MACKERT WALTER
IPC: G01B11/30
Abstract: An infrared emitter 2 whose surface temperature is kept constant during measurement is used to irradiate a measurement region 4 on a roughened material surface with heat with an oblique angle of incidence of the rays. The temperature of the reflected thermal radiation is measured by means of an infrared thermometer 3 which is arranged above the measurement region in such a way that the reflected radiation impinges in the field of view of the infrared thermometer. The overall measurement region of the material surface, which is situated in the field of view of the infrared thermometer, must be irradiated with heat. The measured temperature characteristic of the reflected radiation as a function of the known surface roughness of the material is stored in a comparator 7. This comparator 7 is fed a desired value for the desired surface roughness. The infrared temperature of a material surface which is at first unknown with regard to its surface roughness is measured and compared with the stored temperature characteristic in order to determine the magnitude of the surface roughness. The value thus obtained is used in conjunction with the desired value fed in to form a difference signal which is fed via the output 8 of the comparator 7 to a control unit 9 of a processing device for the material.
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公开(公告)号：BR9504236A
公开(公告)日：1996-08-06
申请号：BR9504236
申请日：1995-09-29
Applicant: HOECHST AG
Inventor： PLATZER STEPHAN J W , MACKERT WALTER , NEUBAUER RUDOLF
Abstract: Process for the mechanical roughening of the surface of an Al (alloy) printing plate carrier by wet brushing is novel in that it is wet brushed, with simultaneous application of organic fibres and metal wires placed side by side, with a suspension of 5-80 wt. % abrasive particles in water. Also claimed is a brush roller to carry out the above process having a surface covered with bands of brushes. The brush roller is novel in that the brush bands (8, 9) contain fibres and wires, the fibre material being different to the wire material.
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公开(公告)号：CA2068000A1
公开(公告)日：1992-11-07
申请号：CA2068000
申请日：1992-05-05
Applicant: HOECHST AG
Inventor： SCHMIDT HUGO , RUCKSZIO MANFRED , HAAS RAIMUND , MACKERT WALTER
Abstract: With an infrared radiator, the surface temperature of which is kept constant during measurement, a measuring area on a roughened material surface is thermally irradiated with oblique incidence of the rays. The temperature of the reflected thermal radiation is measured by an infrared thermometer, which is arranged above the measuring area in such a way that the reflected radiation falls into the area of coverage of the infrared thermometer. The entire measuring area of the material surface which lies in the field of coverage of the infrared thermometer must be thermally irradiated. The measured temperature variation of the reflected radiation in dependence on the known surface roughness of the material is stored in a comparison device. This comparison device is fed a set value for the desired surface roughness. The infrared temperature of a material surface, initially unknown with respect to its surface roughness, is measured and compared with the stored temperature variation, in order to determine the magnitude of the surface roughness. From the value thus obtained and the set value fed in, a differential signal is formed, which is fed via the output of the comparison device to a control of a treatment device for the material. A:\\APP¦4/7/92¦ALEX839¦TEN:jw/ags
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