What is plywood gluing strength standard of GB/T9846.2?

  1. Main waterproof plywood price content and scope of application This standard specifies the method of measuring the glue strength of ordinary bcx plywood plywood as defined by GB9846.2.
  • GB9846.2 Marine grade plywood terminology and definitions
  • GB9846.8 White plywood extraction method for measuring bond strength
  • GB9846.9 Oak veneer plywood specimen sawing
  • GB9846.10 Okoume plywood measurement of plywood specimen size
  • Gauges and instruments

3.1 Vernier calipers, indexing reading accuracy of 0.01g.

3.2 Constant temperature water bath, 30 ~ 100 ℃.

3.3 Tensile testing machine, load reading accuracy of 5N.

3.4 Air convection drying box, the box temperature at all points can be maintained at 63 ± 3 ℃.

4 Sampling and test pieces

  • Teak plywood samples taken according to the provisions of GB9846.8.
  • According to the provisions of GB9846.9 sawing specimens.
  • The test birch plywood home depot piece should not contain material defects and processing defects that affect the adhesive strength within the shear surface.
  • Procedure structural plywood
  • Measure the size of the specimen according to GB9846.10.
  • Specimens according to its plywood category were processed by the following conditions.

Class I marine plywood suppliers near me: the specimen will be placed in boiling water for 4h, and then dried in the air convection drying oven at 63 ± 3 ℃ for 20h, and then boiled in boiling water for 4h, removed and cooled at room temperature for 10min. When boiling the test piece, the test piece should be immersed in boiling water and cooked with a cover.

Note: Factory production lightweight plywood allows the use of 3h boiling fast test method, the measured results multiplied by a factor of 0.9 as a product inspection of the bonding strength value, but in the event of a dispute between supply and demand demand for class I plywood for re-inspection, still 28h boiling and drying cycle method as a method to promote cutting.

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