Titanium is a metal having a high degree of chemical activity. However, it emerged in many corrosive media particularly excellent corrosion resistance. The reason is titanium and has a good affinity for oxygen, react with oxygen to produce highly strong and dense layer of oxide film on the surface of the blunt.
Aerospace titanium castings
2014年3月26日星期三
How to clean a titanium rod filter Aerospace titanium castings
Pharmaceutical production in accordance with the requirements of the different nature of the solvent and the media, Aerospace titanium castings our technical engineering titanium filter regeneration procedures are as follows:
1, caustic: 3-5% solution of sodium hydroxide AR soak for 30-60 minutes, the temperature is about 40 degrees. Best in ultrasonic cleaning machine. After soaking the filter with deionized water or water for injection
Inside and outside the red to neutral, measured conductivity. With pure dry air pressure ≥ 0.4Mpa.
2, acid: 5% nitric acid solution soak for 8 titanium precision casting hours, the temperature was 40 degrees. Best in ultrasonic cleaning machine. After soaking with deionized water or filtered water for injection and outside the red to neutral,
Measured conductivity. With pure dry air pressure ≥ 0.4Mpa.
3, the above two methods may be used alone, may be used interchangeably with each other. If the conditions can be combined with ultrasonic cleaning machine best.
4, organic pollution can be combined with a surfactant cleaning, cell debris contaminated system conjugating enzyme cleaning effect is more ideal. (Food and drink can be a high concentration of citric acid wash)
Note: aerospace castings Always online blowback wash (line cleaning with pure liquid or compressed air or clean water filtration recoil) can reduce the frequency of cleaning using the above method.
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