| 摘要 |
The invention relates to a method for quality assurance in preferably finger-jointed timber ( 1 ), produced in series, with a given minimum length ( 12 ), characterized in that each piece, produced within the length ( 12 ), is loaded with increasing tensile forces at the ends ( 5 ) thereof to a threshold value, below the breaking load for a fault-free timber piece, and the length changes (DELTA 1 ), changing therewith, are determined over a section, or the whole length of the timber piece ( 1 ) and used as a quality criterion for the use, or the further processing of the timber piece ( 1 ). The invention further relates to a device for carrying out said method. |
