Surface cleaning method of container provided:

1.机械处理。

1. Mechanical treatment.

主要包括抛丸法和喷丸法。抛丸清理是利用离心力使弹丸加速，抛向工件除锈的方法。但抛丸的灵活性较差，且受场地限制，因此在清理工件时存在一定的盲目性，容易在工件内表面产生无法清理的盲点。设备结构复杂，易损件多，尤其是叶片等零部件磨损快，维修时间多，利用率高，一次性投资大。

It mainly includes shot blasting and shot blasting. Shot blasting cleaning is a method of using centrifugal force to accelerate the shot and throw it to the workpiece to remove rust. But the flexibility of shot blasting is poor, and it is limited by the site, so there is a certain blindness in cleaning the workpiece, which is easy to produce blind spots on the inner surface of the workpiece. The structure of the equipment is complex, there are many vulnerable parts, especially the blades and other parts are worn quickly, the maintenance time is much, the utilization rate is high, and the one-time investment is large.

2.化学处理。

2. Chemical treatment.

酸性或碱性溶液主要用于与工件表面的氧化物和油污发生化学反应，使其溶解在酸性或碱性溶液中，从而达到去除工件表面锈垢和油污的目的。化学处理适用于清洗薄板。

Acid or alkaline solution is mainly used for chemical reaction with oxide and oil on the surface of the workpiece to dissolve it in acid or alkaline solution, so as to achieve the purpose of removing rust and oil on the surface of the workpiece. Chemical treatment is suitable for cleaning sheet.

但是这种方法也有缺点，就是如果时间控制不好，即使加入缓蚀剂，也会腐蚀钢材。对于结构复杂的零件和有孔的零件，用酸液酸洗后，浸泡在缝隙或孔中的残留酸很难完 全。如果处理不当，会成为零件未来腐蚀的隐患，而且化学品易挥发，成本高。处理后的化学物质排放困难。如果处理不当，会对环境造成严重污染。随着人们意识的进步，这种处理方式正在被机械处理所取代。

But this method also has disadvantages, that is, if the time control is not good, even if the inhibitor is added, the steel will be corroded. For the parts with complex structure and holes, it is difficult to completely remove the residual acid soaked in the cracks or holes after acid pickling. If not handled properly, it will become a potential corrosion hazard of parts in the future, and the chemicals are volatile and the cost is high. It is difficult to discharge chemicals after treatment. If not handled properly, it will cause serious pollution to the environment. With the progress of people's awareness of environmental protection, this treatment method is being replaced by mechanical treatment.

3.手工处理。

3. Manual treatment.

工件表面的铁锈和氧化皮可以用刮刀、钢丝刷或砂轮手工，但手工加工劳动强度大，生产效率低，质量差，清洗不彻 底。

The rust and oxide scale on the surface of the workpiece can be removed manually by scraper, wire brush or grinding wheel, but the manual processing has high labor intensity, low production efficiency, poor quality and incomplete cleaning.