Electronic Drop Hammer Fall Weight Impact Strength Tester
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- Supplier: Hualong Test Co. Ltd.
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Product Overview
Description
Electronic Drop Hammer Fall Weight Impact Strength Tester
Product Description
Introduction
HUALONG WCJ Series is mainly used for drop weight tear test (DWTT) of Ferritic Steels, to observe specimen fracture surface after impact within the temperature that fracture type is converted from non-ductility to ductility. This test method is that hammer striker with some weights is raised to some height then released. Free drop hammer impacts and tears the specimen. After impact, proportions of ductile fracture (shear) and cleavage on the fracture surfaces are measured.
Impactek data acquisition system is available to be introduced into DWTT tester, through which can upgrade simple uninstrumented DWTT tester to an instrumented DWTT tester who is able to measure the amount of force required to break a specimen, and this enables calculation of separate values for initiation energy and propagation energy, those impact resistance information gathered by doing instrumented testing can be used by Research and Development to evaluate the effects of metallurgical variables such as composition, processing, heat treatment can have on the fracture resistance of new or existing materials. Test results may also be used to indicate particular steel’s suitability for use in a specific application.
Specification
| Max Energy (J) | 30kJ | 40kJ | 50kJ | 60kJ | 80kJ | 100kJ |
| Drop height | 2 | 2.6 | 2.6 | 3.1 | 3.2 | 4.1 |
| Resolution | 1mm | |||||
| Accuracy | +-2mm | |||||
| Impact velocity (m/s) | 5.4<v< | 5.4<v<7 | 5.42<v<7 | 5.4<v<7.9 | 5.4<v<7.9 | 5.4<v<8.96 |
| Drop weight (kg) | ||||||
| Mass of drop weight frame(kg) | 800 | 800 | 1000 | 1300 | 1300 | 1300 |
| Mass of weight increments (kg) | 30 | 30 | 50 | 50 | 50 | 50 |
| Quantity of weight increments | 27 | 27 | 20 | 24 | 24 | 24 |
| Total mass of drop weight (kg) | 800+(27*30)=1610 | 800+(27*30)=1610 | 1000+(50*20)=2000 | 1300+(50*24)=2500 | 1300+(50*24)=2500 | 1300+(50*24)=2500 |
| Mass Deflection | +-0.5% | |||||
| Max raising speed (m/min) | 4 | |||||
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