A hammerframe board is changed into a single layer prismatic shape or an I shape to save steels of the rotor part of the crusher 30%, and thus the cost is lowered.
将锤架板改为单层棱形或工字形，使粉碎机转子部分节省钢材30%，降低了成本。
2
Advantage: frame can open, make replacing hammer head, back plate and lining board work easier.
优势：机架可以开启，使得更换锤头、反击板及衬板的工作更加简便易行。
3
The frame photograph of explosive samples under drop hammer test have a furcate structure, in which the fractal dimension of the explosive is related to its impact sensitivity.