Wheel must be used with safety guards. The actual rotational axis of the wheel and its axis of rotation through the center of mass deviation from parallel state called static unbalance wheel. This is usually due wheel uneven density, both ends of the hole and the surface is not parallel or coaxial cylindrical deviation has caused.
2013年8月28日星期三
Abrasive enterprise scale structure is still not reasonable
Experts believe that to maintain the abrasive abrasive grinding and orderly development, but also needs to address the following aspects: production capacity of decentralized, small-scale, low efficiency, the current structure of abrasive scale enterprises are still quite reasonable, industry set low and small enterprises still account for a large proportion; new product development capacity is weak, the domestic synthetic diamond are mainly set the low end, low-tech products, and the lack of high-end technology products, mainly rely on imports, only to meet the automotive, aerospace, machine tool , bearings, locomotives and ships and other industrial needs about 1/3; overcapacity, Diamond blade homogeneity serious, its alumina production is particularly prominent. Hair high abrasive products, reduce dependence on imports. Next five years, angle grinding abrasives industry fundamentals will also become the economic policy tone.
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