Level of state of People's Republic of China
Plywood - the feed of test specimen
Plywood - Cutting Of Test Speciments

1 main content and suitable scope

This standard stipulated by the common plywood physics that GB9846.2 defines mechanical function tests the method of test specimen feed and requirement.

This standard applies to the plywood that comprises by three-layer veneer at least.

2 cite standard

Term of GB 9846.2 plywood and definition

GB 9846.6 plywood is common the draw-out method of plywood.

Intercept of 3 test specimen

The intercept on the 3.1 plywood that offer a test from every pieces half pieces, press a plan 1 regulation intercept 3 groups of sample. The test specimen configuration of every groups of sample sees a picture 2. Every test specimen should press group of serial number, number of moisture content test specimen is Ⅰ , Ⅱ , Ⅲ , number of agglutination intensity test specimen is 1, 2, 3...

When 3.2 intercept sample and test specimen, should keep away from the material qualitative blemish that affects test accuracy and treatment blemish.

3.3 make the measure that takes test specimen from every Zhang Ban.

(L- curiums road width, mm; N - test specimen piece several)

Test specimen of 4 moisture content

The appearance of moisture content test specimen and dimension are not restricted, of test specimen most the area is 25cm2

Test specimen of 5 agglutination intensity

Test specimen of 5.1 agglutination intensity presses a plan the appearance of 3 regulations and dimension feed. Altogether watch board ply (the veneer ply before glue is pressed) the plywood that is more than 1mm adopts measure of A test specimen; Watch board ply contains the plywood under 1mm) to adopt measure of B test specimen from 1mm(.

The width opening slot of test specimen of 5.2 agglutination intensity and deepness should press a plan 3 show dimension and requirement to undertake. Notch deepness should have curiumed core board stops to sub, must not have curiumed should cross this sub. Test specimen opens groove to want to ensure the test suffers when carrying, core of half test specimen board come back cut cranny to suffer drawing, and core of test specimen of other in part board come back cut cranny press press to shrink, should press plywood namely (face plate) , instead (face plate) direction curiums make the test specimen with equal amount. See a picture 4.

Of feed of test specimen of 5.3 agglutination intensity quadrangular flat and smooth, vertical edge and watch board fiber direction is parallel. Curium groovy cut should flowing as perpendicular as vertical edge.

5.4 multilayer the agglutination intensity test specimen of plywood can consult graph 5 feed. The total amount of test specimen should include each sub of every group, and test most the test specimen amount of intermediate sub should 1/3 what not less than test specimen gross measure.
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