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Several causes of enamel reactor damage
Addtime：2016-07-19 09:33:54 Print
So-called enamel reaction kettle is a high silicon content of mild steel enamel coating to the tire surface, by about 900 ℃ high temperature roasting, make porcelain glaze indiscrete formed on the metal steel tire surface, because of these two kinds of material mechanical properties and physical properties of each are not identical, because of the breakage of the enamel reaction kettle is diverse, generally has the following several reasons:
(a) static puncture: enamel reaction kettle with suspended solids mixing liquid inside, suspended solids and enamel strong friction, suspended matter itself also produce friction, thus produced a large number of electrostatic charge, high static charges on the enamel strongly piercing, resulting in enamel pitting, thus stirring speed shoulds not be too fast.
(2) thermal stress damage: enamel reaction kettle by 900 ℃ high temperature roasting, enamel with bonding steel plate after cooling.Due to the linear expansion coefficient of enamel and elongation rate is less than steel, so the cooling of glass lining deformation after less than the deformation of the steel plate, enamel will produce a compressional stress constraint by steel plate.Made of enamel reaction kettle, the glass lining is compressive stress, while the plate is tensile stress.
(3) the mechanical damage: enamel was very poor resistance to impact and any metal, hard to hit all can lead to damaged enamel.So in the process of enamel reactor using protected from any metal, hard objects into kettle, in case of plugging material, must use plastic dredge, cover the pot, maintenance fight welding slag melting enamel surface appear small holes or porcelain.
(4) processing stress failure: in the process of the kettle body, because of the drum, stamping, welding produces a lot of stress, the stress in enamel should eliminate before, such as eliminating incomplete leads to enamel porcelain.This damage often occurs in the first three months after put into use.So the body heat treatment or aging treatment can prevent exploding porcelain.
(5) analysis of hydrogen corrosion: enamel reactor jacket in use after a period of time will be scaling and rust, if using acidic detergent to remove dirt or in jacketed cooling fluid partial acid, can lead to formation of hydrogen corrosion metal (Fe + 2 hci = FeC12 + H2O part of H atom diffusion in the metal cavity, combined into} b, the H: due to the density of enamel can't spread out, so when the Hz accumulated to a certain extent, form a set of dynamic, enamel rupture occurs.
(6) lining burning poor quality: some enamel reaction kettle manufacturers production crude, rust removing dust was not up to standard, the bottom glaze combined with matrix is bad.Some technicians to reduce burn times, increase the thickness of each layer, the internal force is too large, affect the service life of the enamel reactor.So strictly made according to manufacturing procedures to ensure the quality of the enamel reactor.
Above are based on the failure reasons of enamel reaction kettle, everybody know after must protect enamel reaction kettle as far as possible don't appear unnecessary trouble.
In the previous：Enamel reactor welding crack is formed in two precautions(a) static puncture: enamel reaction kettle with suspended solids mixing liquid inside, suspended solids and enamel strong friction, suspended matter itself also produce friction, thus produced a large number of electrostatic charge, high static charges on the enamel strongly piercing, resulting in enamel pitting, thus stirring speed shoulds not be too fast.
(2) thermal stress damage: enamel reaction kettle by 900 ℃ high temperature roasting, enamel with bonding steel plate after cooling.Due to the linear expansion coefficient of enamel and elongation rate is less than steel, so the cooling of glass lining deformation after less than the deformation of the steel plate, enamel will produce a compressional stress constraint by steel plate.Made of enamel reaction kettle, the glass lining is compressive stress, while the plate is tensile stress.
(3) the mechanical damage: enamel was very poor resistance to impact and any metal, hard to hit all can lead to damaged enamel.So in the process of enamel reactor using protected from any metal, hard objects into kettle, in case of plugging material, must use plastic dredge, cover the pot, maintenance fight welding slag melting enamel surface appear small holes or porcelain.
(4) processing stress failure: in the process of the kettle body, because of the drum, stamping, welding produces a lot of stress, the stress in enamel should eliminate before, such as eliminating incomplete leads to enamel porcelain.This damage often occurs in the first three months after put into use.So the body heat treatment or aging treatment can prevent exploding porcelain.
(5) analysis of hydrogen corrosion: enamel reactor jacket in use after a period of time will be scaling and rust, if using acidic detergent to remove dirt or in jacketed cooling fluid partial acid, can lead to formation of hydrogen corrosion metal (Fe + 2 hci = FeC12 + H2O part of H atom diffusion in the metal cavity, combined into} b, the H: due to the density of enamel can't spread out, so when the Hz accumulated to a certain extent, form a set of dynamic, enamel rupture occurs.
(6) lining burning poor quality: some enamel reaction kettle manufacturers production crude, rust removing dust was not up to standard, the bottom glaze combined with matrix is bad.Some technicians to reduce burn times, increase the thickness of each layer, the internal force is too large, affect the service life of the enamel reactor.So strictly made according to manufacturing procedures to ensure the quality of the enamel reactor.
Above are based on the failure reasons of enamel reaction kettle, everybody know after must protect enamel reaction kettle as far as possible don't appear unnecessary trouble.