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Method for hardening selected regions of a guide bar for chain saws, and guide bar produced thereby
Method for hardening selected regions of a guide bar for chain saws, and guide bar produced thereby
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机译:硬化用于链锯的导杆的选定区域的方法以及由此产生的导杆
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摘要
A chain saw guide bar includes outer side surfaces, a longitudinal groove having side walls, and two edge surfaces. Each edge surface interconnects a side wall and an outer side surface to form therewith inner and outer corners, respectively. To edge-harden the guide bar, the edge surfaces, inner corners, and outer corners are heated above 750. degree. C. Then, the edge surfaces and inner corners are rapidly cooled, i.e, quenched, but the outer side surfaces are cooled more slowly, whereby the inner corners are given a higher hardness than the outer corners.
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