Tài liệu Buchholz ppt

TIGER DRYLAC Quality Controln Test instructions Hardness according Buchholz DIN 53153 resp. ISO 2815 PA 02 1. Purpose / Target: The test serves standardized impression body for the evaluation of the behavior of coatings with the impression attempt according to Buchholz. 2. Description of the procedure: 2.1) ) Testing sets Impact body as per DIN 53153 Loupe as per DIN 58383 2.2) ) Execution The coated sample board are long stored at least 12 hours. For check the impression body is put smoothly and without tilting and lateral moving on the sample sheet metal and left there for 30 ± 1 second. After this time the impression body is carefully again taken off. 2.3) Analysis After taking the impression body off the length of the developed impression with the loupe is measured. From the measured value with that following table (from DIN 53153) the impression resistance is determined after Buchholz (column 3). If this value does not correspond to the pre-set value, then a second test is to be executed on the same sheet metal. 3. Link documents: DIN 53153 ISO 2815 Analysis table Approved by: Ing. M. Mathe Issue date April 95 Update status 01 Folder - Nr HQ 03 - 18 pagte 1/1 . TIGER DRYLAC Quality Controln Test instructions Hardness according Buchholz DIN 53153 resp. ISO 2815 PA 02 1. Purpose / Target: The test serves. evaluation of the behavior of coatings with the impression attempt according to Buchholz. 2. Description of the procedure: 2.1) ) Testing sets Impact body as