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The choice of corrosion protection tube thermal resistance and corrosion resistance performance1

2021-01-06

JVTIA

235

Corrosion protection tube thermal resistance selection and its corrosion resistance performance

1, stainless steel ( 0Cr18Ni12Mo2Ti) Protecting tube: for industrial water, water, sewage with weak corrosive medium, such as applicable to petroleum, chemical industry, iron and steel industries and municipal, environmental protection and other fields.

2, hartz alloy B protection tube, below the boiling point for all the concentration of hydrochloric acid have good corrosion resistance, resistant to sulfuric acid, phosphoric acid, hydrofluoric acid, organic acids and other non chloride acid, alkali, corrosion of non oxidizing salt solution.

3, hartz alloy C protection tube: non oxidizing acid, such as nitric acid, mixed acid, or a combination of chromic acid and sulfuric acid medium corrosion, oxidation resistance and salt Fe++ +, Cu++ or contain other antioxidant corrosion, such as higher than normal temperature hypochlorite solution, the corrosion of the water.

4, titanium protection tube: water, all kinds of chloride and hypochlorite, oxidizing acid ( Including fuming sulfuric acid) , organic acid, alkali corrosion. Not pure resistance reducing acid ( Like quicksand, hydrochloric acid) Corrosion, but contain antioxidants such as acid ( Such as nitric acid, Fe++ +, Cu++) , the corrosion is greatly reduced.

5, ptfe protection tube, is one of the most stable chemical performance plastic, boiling hydrochloric acid, sulfuric acid, nitric acid and aqua regia, strong alkali and a variety of organic solvents. Not three chlorine fluoride, high temperature resistant chlorine, high-speed liquid fluoride, fluoride corrosion of liquid oxygen, ozone,

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor

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