16. Common electrode materials corrosion performance
17. Common properties of lining materials and application.
Lining material
PTFE
-80
～
250°C
0
～
80°C
0
～
60°C
Chloroprene
rubber
Polyurethane
Rubber
The main performance
The main performance
Application
temperature
HastelloyB
HastelloyC
Ti
Acid-resistant
steel
1Cr18Ni9Ti
Corrosion performance
To nitric acid, phosphoric acid and other cold inorganic acid,a variety of salt and
alkali solutions, organic acids, water-resistant for a good corrosion resistance.
Formic acid of boiling, Oxalic acid , industrial acid-ming, as well as sodium
carbonate and chlorine, bromine, iodine, such as poor chemical stability of
medium, not corrosion.
Stainless steel
containing
molybdenum
0Cr18Ni12Mo2Ti
0Cr18Ni12Mo3Ti
In the reductive medium (such as hydrochloric acid) compare with 1Crl8N 9Ti
have stronger corrosion resistance.Less than 50% of the nitric acid, at room
temperature less than 50% of sulfuric acid and 20% of the hydrochloric acid,
alkali solution, boiling phosphoric acid, formic acid, under pressure from a certain
sub-sulfuric acid, water, acetic acid and other media have a strong corrosion
resistance , can be widely used in petrochemical, urea, vinylon industry.Intolerant
of hydrofluoric acid, chlorine, bromine, iodine and other medium.
Below Boiling point of all of the following concentrations of hydrochloric acid with
good corrosion resistance, is also resistant to sulfuric acid, phosphoric acid,
hydrofluoric acid, organic acids and other non-oxidizing acids, alkalis, salt
solution of non-oxidative corrosion.
Oxidation of acid-resistant, such as nitric acid, mixed acid or chromic acid and
sulfuric acid corrosion of mixed medium, but also resistant to oxidation of the
salts such as Fe ", Cu +2 corrosion or other oxidants. Such as higher than normal
temperature of the hypochlorite solution. Seawater corrosion resistance is very
good
Medium resistance of oxygen and nitric acid, chloride, hypochlorite and chlorine
the corrosion resistance of a good medium.
Material
It is the most stable plastic
material. Ability to boiling Of
hydrochloric acid, sulfuric acid,
nitric acid and aqua regia, but also
strong capability Alkali, organic
agent. Molten alkali metals and
intolerance
，
Its ammonia
solution, abrasion resistance and
poor bonding
Have good flexibility, high tensile
strength, abrasion resistance,
good impact resistance. Acid,
alkali, salt and other corrosive
media. Intolerance oxidative
corrosion media
Has an excellent wear resistance,
which is equivalent to ten times
that of natural rubber.
Has an excellent wear
resistance, which is
equivalent to the pressure
of natural rubber pipe
measurement acids,
alkalis,Like salt, strong
corrosive medium or
medium health category.
A non-oxidizing
acids, alkalis,
salt solution.
Oil drilling, slurry, mud,
Mortar serious occasions,
such as wear and tear
12
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