ASTM D5628 PDF

Buy ASTM D TEST METHOD FOR IMPACT RESISTANCE OF FLAT, RIGID PLASTIC SPECIMENS BY MEANS OF A FALLING. Falling Dart Impact (Gardner Impact) ASTM D ASTM D ASTM D Find the most up-to-date version of ASTM D at Engineering

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Equipped with force transducer, precise data sampling and measurement system, it fully satisfies instrumented impact tests complying with international standards. The values in parentheses are for information only. Summary of Test Method 4. Main frame Main frame consists of seat, top plate, guidance columns and support columns.

Seat is made of 45 steel plate and 4 support rods. The seat can accommodate different fixtures for different specimens test.

Rigid Plastic Specimens Drop Weight Impact Test Equipment ASTM D Standard

Support columns are steel pipe to guarantee the whole main stiffness. The connection among support columns, top plate and seat is flange with high stability. D628 columns are precise smooth columns with chrome plated. Upper and lower ends are connected with screw to ensure high stiffness.

Striker lift mechanism It consists of servo motor, speed reducer, convoy belt, lead screw, and crosshead. Panasonic servo motor provides control with high accuracy to 1mm. Striker assembly Striker assembly consists of guide d56628, striker, force transducer and tup.

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It is flexible to change striker, transducer and tup. Spring driven device This mechanism provides high speed impact on specimen, depending on high strength spring beside of free drop. Speed detector Speed is measured by optical encoder.

By measurement of speed at the instant before impact and after impact, the calculated kinetic energy difference before and after impact is the absorbed energy and friction losses. By correction of friction losses, the exact absorbed energy can be calculated.

Anti-rebound device This device is to prevent secondary impact on specimen when tup rebounds after impact. Interlock door further improves safety. Touch screen is used for test interface. d55628

Rigid Plastic Specimens Drop Weight Impact Test Equipment ASTM D5628 Standard

Rotary encoder is used for measurement of height. Instrumented system orce transducer in striker transfers the force signal to high speed data conditioner for amplification. Bridge strain gauge type force transducer awtm various energy is available, ranging 0. It provides high frequency, high linearity and durability.

Industrial standard PCI interface is easy to communicate with computer.

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Enlarge the strain signal to match the analog signal input range required by high speed data sampling card, improving measurement resolution d6528 sensibility. Instrument data analysis system – Software.

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