Stone hammer blow testing instrument
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Whats/App: +86 185 0176 3615
Web: qinsun-lab.com
Stone hammer blow testing instrument mainly simulates the actual driving condition of the vehicle, and the individual parts of the vehicle body are often impacted by heavy objects such as sliding material and pavement gravels. Thus, the products are damaged. The product damage degree is determined by injection Angle, injection pressure, number of injection, airflow speed, the specification and quality of steel shot or gravel, impact duration and test instrument.
Work Principles
A certain weight of gravel is bounced into the feeder by vibration. Due to the vacuum formed by the high speed air flow in the lower part of the feeder, the collision medium is sucked into the ejection gun assembly, and then is shot into the test sample by the jet stream. After the medium hit the test target, the medium falls into the gravel collecting box. The test machine causes a large number of steel balls or rubble with sharp edges to hit the sample surface in a short time. The whole experiment is carried out under a controlled temperature. After the impact is finished, the loose coating is removed with adhesive tape to reveal the residual stone strike marks on the sample, which can be used to judge the performance of the resistance to stone impact by analyzing the damage degree of the sample.
Standards
SAE J400，VDA 621427，ISO 20567-1，ASTM D3170，GMW14668-3.4.9，Peugeot/Citroen D241312，Chrysler 463PB-52-01 、Chrysler 463PB-39-01，Mazda MES MN 601C ，Toyota，Nissan，Ford BI 157-04、Ford BI 157-05.
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