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XJL tensile impact testing machine
Product Introduction
Mainly used for testing the energy required for plastic specimen fracture at a specified tensile impact velocity. Used to determine the brittleness and toughness of non-metallic materials such as plastics.
2、 Characteristics
1. Adopting circular grating angle measurement technology, it has the characteristics of high accuracy, good stability, and large measurement range
2. It has functions such as digital measurement and calculation of fracture energy, impact strength, and calculation of the average value of a batch of samples
3. Convenient calibration of pre elevation angle and elevation angle
4 Display mode: LCD
Three compliance standards:
GB/T 13525-92 "Test Method for Tensile Impact Properties of Plastics"
GBT8814-2004 Unplasticized Polyvinyl Chloride (PVC-U) profiles for doors and windows
ISO8256-1990 "Determination of Tensile Strength of Plastics"
ASTM D 1822
Four technical parameters:
1. Impact speed: 3.8m/s
2 Impact energy: 15J 25J
3 Pendulum torque: pd15J=8.03848Nm pd25J=13.39746Nm
4. Pre swing angle of pendulum: 160 °
5 strike center distance: 395mm
6. Operating temperature: (15-35) ℃
7 Sample size: Length 80 ± 2mm, Width 15 ± 0.5mm, Thickness<4mm
Free length between 8 fixtures: 30 ± 2mm
9 Power supply: 220VAC-15%~220VAC+10% 50HZ (single-phase three wire system)
10. Sample shape and size: The preferred sample thickness is 1mm. Samples cut from the product shall retain their original thickness; Samples with a thickness greater than 4mm should be machined to 4mm. For very thin films, multiple layers of samples can be used, but they should overlap well.
11. Choose a suitable pendulum to ensure that the impact energy reading is within the effective range of the testing machine, refer to the table below:
(Try to choose a small T-shaped head as much as possible while clamping the sample)
Pendulum impact energy J T-shaped head mass g
fifteen
25.0 30 ± 1 or 60 ± 1
60 ± 1 or 120 ± 1