表面处理
surface treatment
1．亮铬：像镜面一样的光亮；
1. Bright chrome: as bright as a mirror;
2．亚铬：无光泽；
2. Chromite: no luster;
3．电泳：黑色，有亮度，在外加直流电的作用下，使带电粒子在分散的介质力向阴极或者阳极做定向移动，促使物质的分离；
3. Electrophoresis: black, bright, under the action of external direct current, the charged particles move to the cathode or anode in the dispersed medium force, promoting the separation of substances;
4．磷化：黑色，但光泽暗，把物质浸在磷化液中，在便面沉积形成一层不溶于水的结晶型磷，是盐酸转换的过程。
4. Phosphating: black, but with dark luster, the substance is immersed in the phosphating solution and deposited on the surface to form a layer of crystalline phosphorus insoluble in water, which is the process of hydrochloric acid conversion.
5．灰镍：是一种全新的表面处理方式，防锈能力强，且会增加产品的使用年限。
5. Gray nickel: it is a new surface treatment method, with strong anti rust ability, and will increase the service life of the product.
6.其他还有发黑，镍铁合金，珍珠镍，黑镍和镀钛等处理

6. Other treatments include blackening, ferronickel, pearl nickel, black nickel and titanium plating
检测要求
Testing requirements
1．不得有生锈，毛刺，裂纹和斑点等；
1. No rust, burr, crack, spot, etc;
2．扳口对称，激光刻字要清楚；
2. The opening should be symmetrical and the laser engraving should be clear;
3．硬度要达到规定标准，且卡位要准确；
3. The hardness shall reach the specified standard and the clamping position shall be accurate;
4．活络扳手的涡轮运作要灵活，销轴不能松动；
4. The turbine operation of the adjustable wrench should be flexible, and the pin shaft should not be loose;
扳手的正确使用与保养
Correct use and maintenance of spanner
1.使用前，应根据被扭件规格及所在位置大大小，选择符合规格的扳手
1. Before use, the wrench that meets the specification should be selected according to the size of the twisted part and its position
2.扭动手柄时用力要平稳，用力方向与被扭件的轴线垂直。
2. When twisting the handle, the force should be stable, and the direction of force should be perpendicular to the central axis of the twisted part.
3.使用扳手时，更好是拉动而不是推动，拉力的方向要与扳手的手柄成直角。
3. When using the wrench, it is better to pull rather than push, and the direction of pulling force should be at right angles to the handle of the wrench.
4.非推时，要用手掌推，手指伸开，防止撞伤关节。
4. When not pushing, push with palm and extend fingers to prevent joint injury.
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