How to clean the inner hole of the stainless steel capillary tube

Now stainless steel capillary tube is widely used, but stainless steel capillary tubes will have oil stains, oxide scale produced by welding, and some other dirt during the production process. If there is an oil stain, it can be cleaned with an organic solvent or alkaline solution. If it is rusty, it can be cleaned with a special rust remover. But how to thoroughly clean the inner hole?

1. If the cleanliness requirement is low, immerse the capillary in the heated degreasing liquid, and then circulate and rinse it with air or water. It is better to scrub back and forth with a brush of suitable size. In short, it is necessary to heat and use a degreasing liquid or cleaning liquid that is very effective in dissolving and dispersing the grease attached to the inner wall.

2. If the cleanliness requirement is high, use ultrasonic cleaning. The principle of ultrasonic cleaning is that when ultrasonic waves propagate in liquid, the sound pressure changes sharply, resulting in a strong air phenomenon in the liquid, and millions of tiny cavitation bubbles are generated every second. These bubbles are rapidly generated in large quantities under the action of sound pressure. They will not explode violently but will produce strong impact force and negative pressure suction, which is enough to quickly peel off stubborn dirt.

3. If the stainless steel capillary tube is relatively long and has a water tank, you can buy an ultrasonic vibration plate and put it into the water for ultrasonic cleaning. If the time is not long, you can insert the ultrasonic vibrator into the pipe for cleaning and then use tap water to rinse off the dirt stripped by the ultrasonic wave.

In summary, this is the method of cleaning the internal control of the stainless steel capillary tube. The cleaning method can be cleaned according to the requirements for the finish of the capillary internal control.