Detailed Product Description
It applies to test falling dart impact resistance for all kinds of plastic film and slice. It accords with GB/T 9639 standard test method for impact resistance of plastic film and slice by the free falling dart method, at the same time it also is satisfied with ISO 7765 standard determination for impact resistance of plastic film and slice by the free falling dart method and ASTM D 1709 standard requirement standard test method for impact resistance of polythene plastic by the free falling dart
Main technical parameter and specification
1.2.1. Work temperature: 535
1.2.2 Hammerhead weight502000 g
1.2.3. Falling poledart head diameter :6.5±0.1mm
Dart pole length: 115mm
1.2.4. Falling dart diameter38±1mm 50±1mm
1.2.5. Inner diameter of the specimen grip125±2 mm
1.2.6. Impact height02000mm
Main structure and principle
The machine structure
The machine consists of mainly falling dart, lift and automatic falling dart structure, worktable, prevent the second time impact structure, electrical control box, the seat of the machine and so on. The machine may pre-
Work principle
A set of control unit which can control falling dart, release falling dart and impact specimen is installed on the lift crossbeam of the machine in order to reach test aim.
Impact energy is calculated result according to hammer weight and impact height. the dart body will bring rebound after hammer body impact the specimen and photoelectricity signal control hold dart structure catch rapidly rebound dart body accordingly achieve twice impact aim.
