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The fluorine
plastics—The material of nonmetal
to bear decay in the word of nowadays
The fluorine plastics(PTFE-F4,
FEP-F46)
is called" king of pl astics
"
popularly, is excogitated and published out in the word
primarily
by American DUPONT CO., LTD in 1938 . put up to produce
industrially in 1949, from the angle to industrialisation
have had history 50 years already, but really widely apply
in pump and valve is not long .Our company introduce into
the patent material of Shanghai Organic Chemical Research
Institute--Patent Material of Chinese Technologys Academy
–The
fluorine plastics alloy (F4 and F46 and a spot of
additive according stated proportionment
to mix ) in 1985, is the corporation
of the earliest in the domestic adopts the fluorine plastics
to manufactur the series products of pumps valves and
pipepads...etc to bear the decay.
The pump and valve of fluorine plastics pad inside and bear
the decay is put
FEP
[F46] or material to process and adopt the way of
moldpressing or enchased to place in the within of steel or
ferric pump、
valve accept
tension parts or the pipe of inside and outside, use it’s
unique capability in resisting strong decay medium aspect to
crank out the products, such as each kind of pump, valve and
piping...etc.:
In
 stuff
of
resisting decay
, the fluorine plastics has incomparable and excellent
capability, in addition to melt alkali metals、elementfluorin
and spiceryhydrocarbon and thickHNO3 above 170
℃
have the decaying phenomenon, at other else chroma HCL、H2SO4、HNO3、aqua
fortis 、organic acid, strong oxidant、thick and sparse
acid
alternate、acid、alkali
alternate and diversified
organic
impregnant
all assume inert
reaction.
Put it pad to the within of pumps and valves , not only
conquer the shortcoming of intensity laigh of the fluorine
plastics stuff but also ravel out deficiency
of bad capability
、high
cost of the poump’s
principal stuff resisting decay . Moreover, the fluorine
plastics except for having excellent chemistry stability, it
defend dirty, defend viscidity good、the
coefficient value of athletic or whisht friction very small
and also adjacent,the lubricative capability of reduce
friction very good, use it as airproof of valve’s
startpart
、closepart, it can take from friction
between airproof-
facies, minish manipulation
wrest-distance
of valve , enhance the product’s
using-life, it’s
using- scope also can expand deli.、medicine
industry. The pad -inside stuff except for PTFE( F4), FEP(
F46), PVDF( F2), also expands scope to PE、PP
and PVC, to satisfy
the demand of various different work condition parameter
. The
fluorine plastics pumps product of our company mainly
has
two greatest forms：one
is the full of fluorine ( the fluorine plastics alloy)pumps
to bear decay,( this kind is small
model
pump)another is the full of pad -inside fluorine( F46),(
this kind is big model pump)
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