国产无套码AⅤ在线观看,福利午夜免费专区,日韩AV女优一区二区资源,av2018天堂网址,美女胸又大又黄又www网站,成年人啪啪啪视频

7 selection techniques of wheel hardness

2014-06-28 1279

Abrasive hardness refers to the degree of difficulty of grinding wheel in the grinding force was dropping on the surface, how to select the grinding wheel hardness, small make up here to tell you.
1 grinding soft materials to choose grinding hard, grinding hard materials should choose soft grinding wheel;
2 cooling liquid grinding dry grinding wheel hardness and high 1~2 level;
3 grinding soft and toughness of non-ferrous metal, hardness should be too soft;
4 the end mill grinding wheel hardness than the circumference, should choose soft;
5 in the grinding under the same conditions, to a high of 1~2 small grade resin bond wheel than vitrified bond grinding wheel hardness;
6 grinding poor thermal conductivity material should be soft grinding wheel;
7 wheel rotation speed is high, the grinding wheel hardness optional soft 1~2 level.

清原| 秦皇岛市| 邛崃市| 湖州市| 于田县| 凉城县| 张家港市| 神木县| 名山县| 屏山县| 云阳县| 云龙县| 随州市| 鹤壁市| 正蓝旗| 綦江县| 响水县| 宁蒗| 铜梁县| 山东| 凭祥市| 拜泉县| 双桥区| 阿合奇县| 龙州县| 正安县| 广元市| 灌云县| 阳西县| 米易县| 雅安市| 高要市| 子洲县| 旬阳县| 安义县| 抚顺市|