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Analysis of the cause of the burn in steel ball processing
1steel ball Burn performance characteristics steel ball Burn generally only by cold pickling can be correctly identified, the cold pickling wet state gray or black. Severe ball burn ball can be seen directly light blue or brown, commonly known as discoloration ball. 
According to its shape, burn can be divided into punctate burns, linear burns and flaky burns (including bipolar burns and global burns). According to its nature can be divided into tempering burns and quenching burns.
2 Causes and Analysis of Burn 2.1 Mechanism Analysis steel ball Grinding process, the local surface by sudden grinding, extrusion, friction and other powerful role, leading to the local temperature rises too high an instant, and then cooled to form a steel ball burn.
When the local temperature instantly elevated to high temperature tempering temperature, but also rapid cooling, the resulting burn by cold pickling was gray-black, the organization is tempered troostite, this burn is called tempering burn. Tempering burns accompanied by complex local changes in the micro-stress, which will be the quality of steel ball.
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2.0mm Brass Ball G200
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