大家都知道冷拔钢管在生产成都收账过程中会有油污和焊接所产生成都找人公司氧化皮以及一些其他成都收账污垢。外壁比较好清理：如果是油污，可以使用有机溶剂或碱液洗，如果是生锈了，那用专用收账除锈剂。可是内壁怎样清理才够彻底呐?今天我们给大家介绍一下。如果是清洁度要求高就用超声波来清洗：

Everyone knows that during the production of cold-drawn steel pipes, there will be oil stain, oxide scales produced by welding and some other dirt. The outer wall is better cleaned: if it is oil stain, it can be washed with organic solvent or alkali solution, if it is rusty, then use special rust remover. But how to clean the inner wall thoroughly? Today we will introduce it to you. If the cleanliness requirement is high, use ultrasonic to clean: 超声波清洗原理：超声波在液体中传播时成都找人公司声压剧变使液体发生强烈的空气现象，每秒产生数百万计的微小空化气泡，这些气泡在声压作用下急速地大量产生，并不继地猛烈爆破，产生强大的冲击力和负压吸力，足以使顽固的污垢迅速剥离。

Principle of ultrasonic cleaning: When ultrasonic wave propagates in liquid, the sharp change of sound pressure makes the liquid produce strong air phenomenon. Millions of tiny cavitation bubbles are produced every second. These bubbles are produced rapidly in large quantities under the action of sound pressure, and then blasted violently, producing strong impact force and negative pressure suction, which are enough to make the liquid stubborn. The dirt peeled off quickly.

如果冷拔钢管比较长，自己又有水槽的话，可以买超声波振板投入到水中进行超声波清洗，如果不是太长可以用超声波振棒，插入到管道里清洗，然后用流水冲洗掉用超声波剥离的污物。

If the cold-drawn steel pipe is relatively long and has its own sink, you can buy an ultrasonic vibration plate and put it into the water for ultrasonic cleaning. If it is not too long, you can use an ultrasonic vibration rod and insert it into the pipe for cleaning, and then rinse off the filth peeled by the ultrasonic wave with running water.