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Test Step:
1. According to the thickness of the test piece, choose appropriate hammer and range. When the thickness of the board is less than 10mm, the 1J gear is selected; when the plate thickness is greater than or equal to 10mm and less than or equal to 15mm, the 2.5J gear is used; when the plate thickness is greater than 15mm and less than or equal to 25mm, choose 5J gear;
2. Promote the hammer to the initial position, lock the hammer, set the test parts on the branch board, facing the hammer on the front, the reverse and supported blades, adjust the passive pointer to zero position to zero position ;
3. Release the hammer to fall freely, impact the test parts and break, read the skills consumed by the destruction of the test piece, and measure the width and thickness of the discount at the discount of the test part.
Calculating results:
The impact strength is calculated according to the following formula, the result is revised To 0.1kj/m 12:a e/be*10³
In the formula:
A -Anti -impact intensity, the unit is Chijiao per square meter (kj/m²);
E —— The function consumed by the break test piece, the unit is Jiaoer (J);
B ———— The width of the test piece is broken, the unit is millimeter (mm);
E —— the test piece break Pass thickness, the unit is millimeter (mm).
Put the hammer impact test machine use:
The cantilever arm beam impact test machine Also known as a hammer impact test machine is mainly used for hard plastic (including plates, pipes, plastic heterogeneous materials), enhanced nylon, glass fiber reinforced fiber reinforcement The determination of the impact toughness of non -metallic materials such as ceramics, cast stones, and electrical insulation materials is an ideal test equipment used by the chemical industry, scientific research units, and colleges and universities for material performance testing.
Characteristics of cantilever shock test machine Features: The main technical parameters of the cantilever arm beam impact test machine are completely in line with ISO180, IOS2611, JB/T8761 , ASTM D256 and other standardsQuality requirements. Touch screen control, simple structure, convenient operation, accurate data, and miniature printing are several major features of this test machine.
Placing hammer impact test machine parameters:
U using temperature (15-35 ) ℃ U Power: AC220 ± 10%50Hz
U impact speed: 3.5m/s
U shocking energy: 2.75J, 5.5J
U impact torque: pd2.75 1.474n · mpd5.5 2.948n · m
u accuracy: angle (0.01 °) Energy (0.01J)
U -hammer pre -raising angle: 150 ° ± 1 °
U strike center distance: 335mm
U impact knife blade rounded corner radius: 0.8 ± 0.5mm
The distance from the U Intellectual Blade to the Kedlet: 22 ± 0.2mm
u Sample type and size.型 蕞 蕞 蕞 1 is 1, which is preferably. (Unit MM)
A Type A gap 45 ° ± 1 ° gap at the bottom radius R0.25 ± 0.05mm
Type A gap 45 ° 45 ° 45 ° 45 ° 45 ° 45 ° The bottom radius of the bottom radius of ± 1 ° R1 ± 0.05mm
*Note:
Customized size
