Purpose:
The instrument dedicated to the detection helmet impact absorption properties and puncture resistance.
Test methods:
Preconditioning: tempering treatment, ultraviolet irradiation pretreatment, water treatment, the above requirements can be pre-integrated with the A705 pretreatment tank helmet shock absorption performance test methods: the height of the drop hammer 1000mm ± 5mm; sequentially by flooding, heat, cold, ultraviolet radiation pretreatment helmets for testing.Puncture resistance test method: puncture the cone axis so that it passes through the center of the helmet crowns 100mm diameter weakest point within the structure, adjusting cone tip to puncture crowns contact point height 1000mm ± 5mm, turn right after flooding, high temperatures,temperature, ultraviolet irradiation pretreatment helmets tested.
Technical parameters:
| Drop Hammer | drop hammer impact |
| test Weight | 5-5.01kg |
| Hammer hemispherical diameter | 96 mm |
| Material | 45 # steel |
| Puncture Hammer | 3-3.05kg weight |
| Angle | perforated section cone angle of 60 ° |
| Cone tip diameter | 1mm |
| Length | 40 mm |
| Maximum diameter | 28 mm |
| Hardness | HRC45 |
| Force Sensors | Measurement range 0-20KN, corresponding to the minimum frequency of 5KHz dynamic force sensor, accurate to 1N |
| Drop height | 1000mm |
| 1 #, 2 # Si alloy head type of testing each one |
| Standard | GB / T2812-2006 requirements of Appendix A |
Instrument features:
(1) Drop hammer and hammer to replace simple operation.
(2) With automatic guidance system to ensure accurate impact hammer and hammer down exactly hit the helmet.
(3) Electric hoist with optical positioning device, automatic positioning, accurate and reliable.
(4) Wallop professional precision sensors, range is 2t, accuracy is ± 0.02%.
(5) LED digital display, auto-save maximum force.
Tester Standard:
GB / T 2812-2006 "helmet test methods" within the shock absorbing properties and puncture resistance test standards. GB / T 2811-2007 "helmet"
