Comparison of new and old Tungsten Electrode Grinder Sharpener features: 1. The tip angle is more precise than the previous generation. 2, The grinding angle problem: in addition to the angle of the needle tip, there is also a direction of the grinding marks on the surface of the needle tip. (The direction of the trace on the right side of the figure is ideal. It can't be traced in this direction on the rotating grinding wheel, but it can be very close, and because the grinding wheel has a small grain size and a small trace, it is almost mirrored.) This state is perfect when the tungsten needle is projected vertically on the grinding wheel, that is, when the tungsten needle is parallel to the tangent line. None of the four holes in the first generation meets this requirement. 3, The utilization efficiency of the grinding wheel, the first generation of the four contacts on the same ring; the second generation of the dispersion distribution, the use of all the corundum as much as possible. 4, Material: the first generation is plastic, low melting point, easy to damage; the second generation is aluminum alloy, sturdy and durable. 5, Installation problems, the biggest defect of the first generation of products is that the installation is inconvenient, need to be adjusted repeatedly, the grinding wheel position is also not precisely controlled, so the grinding angle and the direction of the trace is not accurate; the second generation of the central cut, leaving only two pillars The installation can be completed in one step, and the grinding wheel is aligned with the slit, and the position is accurate.
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