CN104930269B - A kind of helix gas drainage pipe being provided with epoxy resin layer and its processing method - Google Patents
A kind of helix gas drainage pipe being provided with epoxy resin layer and its processing method Download PDFInfo
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- CN104930269B CN104930269B CN201510200515.0A CN201510200515A CN104930269B CN 104930269 B CN104930269 B CN 104930269B CN 201510200515 A CN201510200515 A CN 201510200515A CN 104930269 B CN104930269 B CN 104930269B
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- epoxy resin
- resin layer
- shower nozzle
- convex tendon
- drainage pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Abstract
The invention discloses a kind of helix gas drainage pipe being provided with epoxy resin layer and its processing method, the described helix gas drainage pipe being provided with epoxy resin layer includes body and ring flange, and the described helix gas drainage pipe surface being provided with epoxy resin layer is coated with epoxy resin layer.By arranging, in tube surfaces, the anti-corrosion capability that epoxy resin layer can improve body, epoxy resin layer has excellent corrosion resistance, and adhesive force is strong, effectively resists H in colliery and oil gas field2S、CO2、Cl2Erosion to metal, long property antistatic, it is widely used in long distance water transfer, oil, chemical industry, natural gas, heating power, sewage disposal, water source, bridge, steel construction, the pipeline engineering field such as ocean water delivery piling in China.
Description
Technical field
The present invention relates to a kind of helix gas drainage pipe being provided with epoxy resin layer and its processing method.
Background technology
Helix gas drainage pipeline is widely used in the fields such as air-conditioning, down-hole gas sucking releasing, existing is rolled by cold-rolled steel
The spiral duct becoming overcomes that original inorganic glass-fiber reinforced plastic poor toughness, fragility is big, yielding, damp suction surface halide accumulation, poor water resistance etc.
Shortcoming, and seamless steel pipe weight big, the shortcomings of installation difficulty is high, poor water resistance, corrosion-resistant, wall unevenness are even, and
Polyvinyl chloride pipe is easily aging under moist, hot environment, under northern cold environment, pipe shaft is easily rupturable, poor fire the shortcomings of.
But gas drainage pipe of the prior art is rich in H2S、CO2、Cl2Deng colliery and oil gas field in anti-corrosion capability still
Deficiency, zinc-plated body just needs to change through 2-3, and what a kind of prior art anticorrosion ability of urgent need was good is provided with epoxy resin
The helix gas drainage pipe of layer and its processing method.
Content of the invention
It is an object of the invention to overcoming defect of the prior art, provide a kind of anticorrosion ability good be provided with asphalt mixtures modified by epoxy resin
The helix gas drainage pipe of lipid layer and its processing method.
For achieving the above object, technical scheme provides a kind of helix gas drainage being provided with epoxy resin layer
Pipe, the described helix gas drainage pipe being provided with epoxy resin layer includes body and ring flange, the described spiral shell being provided with epoxy resin layer
Rotation gas drainage pipe surface-coated has epoxy resin layer.The anti-of body can be improved by arranging epoxy resin layer in tube surfaces
Corrosive power, epoxy resin layer has excellent corrosion resistance, and adhesive force is strong, effectively resists H in colliery and oil gas field2S、
CO2、Cl2Erosion to metal, long property antistatic, it is widely used in long distance water transfer, oil, chemical industry, natural air and heat in China
Power, sewage disposal, water source, bridge, steel construction, the pipeline engineering field such as ocean water delivery piling.
Preferably, described body is formed with enclosing to connect with its opposite side screw occlusion by cold-rolled steel coils, cold-rolled steel coils
Screw occlusion encloses and connects produced convex tendon all to outer surface of tube body protrusion, and body is socketed with moving flange plate, body one end
It is provided with baffle ring, the body other end also is provided with baffle ring or is connected with fixed flange；Described body, fixed flange, loose flange
Disk and baffle ring surface are coated with epoxy resin layer；
The U-shaped occlusion of U-shaped and its another side turnup one-tenth that one side turnup of described cold-rolled steel coils becomes and become convex tendon, wherein
One U-shaped being fitted close while tilting the outward flange U-shaped with another one, the cold-rolled steel coils both sides being mutually twisted are coplanar, institute
State the internal gearing side of convex tendon and outer occlusal side is passed through to be welded to connect, described welding region is coated with epoxy resin layer.Such set
Meter can further enhance the anti-corrosion capability of the helix gas drainage pipe all parts being provided with epoxy resin layer, does not stay dead angle.
Preferably, described epoxy resin layer thickness is the monolayer of 1 to 5mm.Such design both can reach anti-corrosion
The effect of erosion, and can be cost-effective, it is preferred version.
Preferably, described epoxy resin layer is composite bed, and described composite bed includes epoxy resin gluing internal layer and ring
Oxygen tree fat anticorrosion outer layer, mixes, in described epoxy resin anticorrosion outer layer, asbestos fibre or the glass having for strengthening toughness
Fiber, described epoxy resin gluing inner-layer thick degree is 1 to 2mm, and described epoxy resin anticorrosion outer layer is 1 to 3mm.Such set
Meter improves adhesive force by epoxy resin gluing internal layer, prevents from departing from using process epoxy resin composite bed；By asphalt mixtures modified by epoxy resin
Fat anticorrosion outer layer, while playing corrosion-resisting function, mixes asbestos fibre in outer layer or glass fibre can improve outward
The toughness of layer, especially longer body body during transport assembling can occur certain bending, and epoxy resin is combined
Layer is easiest to ftracture near the region of outer layer, damages, and leads to anti-corrosion protection to lose efficacy, epoxy resin anticorrosion outer layer can play
Prevent cracking role well.
A kind of processing method of the helix gas drainage pipe being provided with epoxy resin layer, comprises the following steps：
1）, article points processing, cold-rolled steel coils are cut into the required strip of processing；
2）, tubulation, by tuber, cold-rolled steel coils are enclosed with its opposite side screw occlusion and connect, cold-rolled steel coils screw occlusion
Enclose and connect produced convex tendon all to outer surface of tube body protrusion；
3）, cutting, occlusion is enclosed the body connecing and is cut into required length；
4）, flange welding, first moving flange plate is socketed on body, then baffle ring is welded on one end of body, will
Body other end welding baffle ring or fixed flange；Welding is passed through on the internal gearing side of convex tendon and outer occlusal side；Above-mentioned weldering
Connect and all welded using semi-automatic carbon-dioxide arc welding bonding machine；
5）, weld inspection, using heads for crank detection of ultrasonic bonding lines instrument, weld seam is tested, detects and whether have and split inside weld seam
Stricture of vagina, be mingled with, pore, slag inclusion, lack of penetration and incomplete fusion defect, should be up to state standards；All pressure vessels of ultrasonic examination
I grade of butt weld is qualified, and II grade of the pressure vessel butt weld of local ultrasound wave inspection is qualified；
6）, pressure testing inspection, by body two ends seal, apply two atmospheric pressure with air pump into body, body be immersed in
In water；Water temperature is gradient to 40 DEG C from -40 DEG C, each stop 10 minutes at two end point temperatures, find no bubble and be considered as closing
Lattice；
7）, ultrasound wave cleaning, by step 6）The body of middle test passes, moving flange plate, baffle ring and fixed flange leaching
Enter in cleanout fluid, ultrasonic power density is 0.35w/cm2, scavenging period is 5-10min, hot-air seasoning after cleaning；
8）, coating epoxy resin layer, body, moving flange plate, baffle ring and fixed flange are 180- in preheating temperature
Preheat 10 minutes under 200 DEG C of scope, epoxy resin is coated to body table by way of dip-coating, showering or electrostatic spraying
Face forms epoxy resin layer；
9）, solidification, by step 8）In workpiece after 180 degree -220 degree high-temperature baking about 15 minutes melting levelling and then
Solidification.
Can greatly improve the corrosion resistance of body by above technical scheme, the adhesive force of epoxy resin, effectively
Resist H2S, CO2, Cl2 erosion to metal in colliery and oil gas field.Can be improved before body coating by ultrasound wave cleaning
Cleannes, thus improving the adhesive force of epoxy resin and metal surface, the preheating of certain time can also improve coating effect.
Preferably, step 7）In cleanout fluid constituent be：Fatty alcohol-polyoxyethylene ether 5-8%, Oleum Cocois alkane
Alkylolamides 8-10%, triethanolamine oleate 2-4%, monoethanolamine 8-10%, BTA 0-1%, EDTA- disodium 1-
2% and water 70-75%.Such cleanout fluid cleaning performance preferably, forms the stronger combined type cleaning of cleansing power with ultrasound wave.
Preferably, described step 8）In epoxy resin painting method be electrostatic spraying, described epoxy resin component
Comprise bisphenol-A type epoxy resin, firming agent, antistatic additive, fire retardant, degasser, gas-phase silica and filler, described each group
Point parts by weight be:100 parts of bisphenol-A type epoxy resin, firming agent 20-40 part, antistatic additive 10-50 part, fire retardant
5-10 part, 1. 0 parts of degasser 0.5-, gas-phase silica 0.5-0.8 part, filler 10-50 part；Described filler Main Ingredients and Appearance
For aluminium oxide.Such epoxy resin component can improve the adhesive force of sprayed on material and metal surface, have simultaneously and prevent well
Corrosive effect.
Preferably, described step 8）In epoxy resin painting method be composite coated method, step 7）Middle gained
Workpiece elder generation dip-coating epoxy resin gluing internal layer, after treating the solidification of epoxy resin gluing internal layer, by electrostatic spraying by epoxy resin
Gluing internal layer thickeies, and then solidifies again, by electrostatic spraying or dip-coating epoxy resin anticorrosion outer layer.The flange of workpiece
The weld seam of disk, baffle ring and convex tendon and pipe welding is the position being easiest to be corroded, and first passing through dip-coating is so that these portions
Position is wrapped up by way of leaching well, and the later stage is in order to surface obtains relatively smooth surface through electrostatic spraying.
Preferably, described epoxy resin gluing internal layer Ingredient Wt number is：100 parts of bisphenol-A type epoxy resin,
Firming agent 20-40 part, antistatic additive 10-50 part, fire retardant 5-10 part, 1. 0 parts of degasser 0.5-, gas-phase silica
0.5-0.8 part, filler 10-50 part；Described filler Main Ingredients and Appearance is aluminium oxide；
Described epoxy resin anticorrosion outer layer parts by weight are, linear bisphenol A type epoxy resin 30-38 part, body bis-phenol
A type epoxy resin 6-8 part, brominated bisphenol A type epoxy resin 3-6 part, phenol aldehyde modified firming agent 10-16 part, auxiliary agent 3-6 part,
Conductive black 2-5 part, filler 16-22 part, fire retardant 2-6 part, 2 parts of other conductive materials, curing accelerator 0.3-1 part is described
Filler is asbestos fibre or glass fibre.Such epoxy resin gluing internal layer can improve sprayed on material and metal surface
Adhesive force, prevents epoxy resin composite bed from coming off；Such epoxy resin anticorrosion outer layer can play good anticorrosion and
Prevent cracking role.
Preferably, in electrostatic spraying, body encloses while movement along axis horizontal and is rotated about axis, body interior axle
Line is highly provided with inner wall shower nozzle, and inner wall shower nozzle sprays to inwall；Body is externally provided with outer wall shower nozzle, and outer wall shower nozzle includes convex tendon
Shower nozzle and even surface shower nozzle, described convex tendon shower nozzle is arranged in pairs, and forms knuckle between convex tendon and even surface, described is arranged in pairs
The nozzle of convex tendon shower nozzle is respectively facing two knuckles of convex tendon；The even surface of outer wall and convex tendon are sprayed by even surface shower nozzle, folding
Angle is passed through convex tendon shower nozzle and is compensated spraying.Such spraying method can improve effect and the efficiency of spraying.Existing shower nozzle is general
Vertically crucial setting, the side sprayed coating of the knuckle of convex tendon and convex tendon is relatively thin, and spraying effect is not good, increases convex tendon shower nozzle permissible
Compensate spraying, improve integral spray effect.
Advantages of the present invention and having the beneficial effects that：Body can be improved by arranging epoxy resin layer in tube surfaces
Anti-corrosion capability, epoxy resin layer has excellent corrosion resistance, and adhesive force is strong, effectively resists H in colliery and oil gas field2S、
CO2、Cl2Erosion to metal, long property antistatic, it is widely used in long distance water transfer, oil, chemical industry, natural air and heat in China
Power, sewage disposal, water source, bridge, steel construction, the pipeline engineering field such as ocean water delivery piling.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation that in the present invention, cold-rolled steel coils are engaged mode；
Fig. 3 is the pipe structure schematic diagram being provided with epoxy resin monolayer；
Fig. 4 is the pipe structure schematic diagram being provided with epoxy resin composite bed；
Fig. 5 is spray assembly structural representation.
In figure：1st, body；3rd, convex tendon；4th, moving flange plate；5th, fixed flange；7th, baffle ring；9th, U-shaped；10th, cold rolling
Coil of strip both sides；11st, inner wall shower nozzle；12nd, convex tendon shower nozzle；13rd, even surface shower nozzle；14th, knuckle；15th, guide rail；16th, support；17th, drive
Motivation structure；18th, support bar；19th, epoxy resin layer；20th, epoxy resin gluing internal layer；21st, epoxy resin anticorrosion outer layer.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is further described.Following examples are only
For clearly technical scheme being described, and can not be limited the scope of the invention with this.
As shown in Figures 1 to 5, a kind of helix gas drainage pipe being provided with epoxy resin layer, described is provided with epoxy resin layer
Helix gas drainage pipe include body 1 and ring flange, the described helix gas drainage pipe surface coating being provided with epoxy resin layer
There is epoxy resin layer 19.
By cold-rolled steel coils to form while enclosing to connect with its opposite side screw occlusion, cold-rolled steel coils screw occlusion encloses described body 1
Connect produced convex tendon 3 all to protrude to body 1 outer surface, body 1 is socketed with moving flange plate 4, body 1 one end is provided with gear
Ring 7, body 1 other end also is provided with baffle ring 7 or is connected with fixed flange 5；Described body 1, fixed flange 5, loose flange
Disk 4 and baffle ring 7 surface are coated with epoxy resin layer 19；
The U-shaped occlusion of U-shaped and its another side turnup one-tenth that one side turnup of described cold-rolled steel coils becomes and become convex tendon 3, its
In one U-shaped be fitted close while tilting the outward flange U-shaped with another one, the cold-rolled steel coils both sides 10 being mutually twisted are total to
Face, the internal gearing side of described convex tendon 3 and outer occlusal side are passed through to be welded to connect, and described welding region is coated with epoxy resin layer 19.
As shown in figure 3, described epoxy resin layer 19 thickness is the monolayer of 1 to 5mm.
As shown in figure 4, being that a kind of of monolayer optimizes as epoxy resin layer 19, described epoxy resin layer 19 can be compound
Layer, described composite bed includes epoxy resin gluing internal layer 20 and epoxy resin anticorrosion outer layer 21, described epoxy resin anticorrosion
Asbestos fibre or the glass fibre having for strengthening toughness is mixed, described epoxy resin gluing internal layer 20 thickness is in outer layer 21
1 to 2mm, described epoxy resin anticorrosion outer layer 21 is 1 to 3mm.
A kind of processing method of the helix gas drainage pipe being provided with epoxy resin layer, comprises the following steps：
1）, article points processing, cold-rolled steel coils are cut into the required strip of processing；
2）, tubulation, by tuber, cold-rolled steel coils are enclosed with its opposite side screw occlusion and connect, cold-rolled steel coils screw occlusion
Enclose and connect produced convex tendon 3 all to body 1 outer surface protrusion；
3）, cutting, occlusion is enclosed the body 1 connecing and is cut into required length；
4）, flange welding, first moving flange plate 4 is socketed on body 1, then baffle ring 7 is welded on the one of body 1
End, body 1 other end is welded baffle ring 7 or fixed flange 5；Weldering is passed through on the internal gearing side of convex tendon 3 and outer occlusal side
Connect；Above-mentioned welding is all welded using semi-automatic carbon-dioxide arc welding bonding machine；
5）, weld inspection, using heads for crank detection of ultrasonic bonding lines instrument, weld seam is tested, detects and whether have and split inside weld seam
Stricture of vagina, be mingled with, pore, slag inclusion, lack of penetration and incomplete fusion defect, should be up to state standards；All pressure vessels of ultrasonic examination
I grade of butt weld is qualified, and II grade of the pressure vessel butt weld of local ultrasound wave inspection is qualified；
6）, pressure testing inspection, by body 1 two ends seal, apply two atmospheric pressure into body 1 with air pump, by body 1 submergence
Yu Shuizhong；Water temperature is gradient to 40 DEG C from -40 DEG C, each stop 10 minutes, find no bubble and be considered as at two end point temperatures
Qualified；
7）, ultrasound wave cleaning, by step 6）The body 1 of middle test passes, moving flange plate 4, baffle ring 7 and fixed flange
In 5 immersion cleanout fluid, ultrasonic power density is 0.35w/cm2, scavenging period is 5-10min, hot-air seasoning after cleaning；
8）, coating epoxy resin layer 19, by body 1, moving flange plate 4, baffle ring 7 and fixed flange 5 in preheating temperature
For under 180-200 DEG C of scope preheat 10 minutes, epoxy resin is coated by way of dip-coating, showering or electrostatic spraying to
Body 1 surface forms epoxy resin layer 19；The mode of electrostatic spraying will reach more than 200 microns；
9）, solidification, by step 8）In workpiece after 180 degree -220 degree high-temperature baking about 15 minutes melting levelling and then
Solidification.
Step 7）In cleanout fluid constituent be：Fatty alcohol-polyoxyethylene ether 5-8%, Oleum Cocois alkanolamide 8-
10%th, triethanolamine oleate 2-4%, monoethanolamine 8-10%, BTA 0-1%, EDTA- disodium 1-2% and water
70-75%.Fatty alcohol-polyoxyethylene ether is a kind of nonionic surfactant, and the ehter bond in molecule is difficult to be destroyed by acid, alkali, institute
Higher with stability, preferably, it is easy to biodegradation, foam is little to play preferable emulsifying, foaming, decontamination to electrolyte-resistant to water solublity
Effect；Oleum Cocois alkanolamide has good thickening, foam enhancing, foam stability energy as nonionic surfactant, can be to body 1
On greasy dirt carry out emulsifying and deoil；Triethanolamine oleate is nonionic surfactant, has excellent emulsifying and dispersive property；
Foaming capacity is strong, and foam is fine and smooth；Acid strong with stability in alkaline medium；There are good washing and antirust ability；Monoethanol
Amine is antirust agent；BTA is corrosion inhibiter；EDTA- disodium is chelating agent.The physical cleaning of ultrasound wave and above cleanout fluid
Chemical cleaning combine, so that greasy dirt on body 1, rusty stain and impurity are thoroughly cleaned.
It is the situation of monolayer as epoxy resin, described step 8）In epoxy resin painting method be electrostatic spraying, institute
State epoxy resin component comprise bisphenol-A type epoxy resin, firming agent, antistatic additive, fire retardant, degasser, gas-phase silica and
Filler, the parts by weight of described each component are:100 parts of bisphenol-A type epoxy resin, firming agent 20-40 part, antistatic additive 10-
50 parts, fire retardant 5-10 part, 1. 0 parts of degasser 0.5-, gas-phase silica 0.5-0.8 part, filler 10-50 part；Described
Filler Main Ingredients and Appearance is aluminium oxide.The preferable anticorrosion ability of coating, antistatic effect can be realized by above component, especially
It is that filler is mainly the adhesive force that aluminium oxide can greatly improve coating, prevents figure layer from coming off.
It is the situation of composite bed as epoxy resin, described step 8）In epoxy resin painting method be composite coated
Method, step 7）The workpiece elder generation dip-coating epoxy resin gluing internal layer 20 of middle gained, after treating epoxy resin gluing internal layer 20 solidification, leads to
Cross electrostatic spraying to thicken epoxy resin gluing internal layer 20, then solidify again, by electrostatic spraying or dip-coating epoxy resin
Anticorrosion outer layer 21.The time of dip-coating is 5-10min, and the weld seam that the ring flange of workpiece, baffle ring 7 and convex tendon 3 are welded with body 1 is
It is easiest to the position being corroded, first passing through dip-coating is so that these positions are wrapped up by way of leaching well.
Described epoxy resin gluing internal layer 20 Ingredient Wt number is：100 parts of bisphenol-A type epoxy resin, firming agent 20-
40 parts, antistatic additive 10-50 part, fire retardant 5-10 part, 1. 0 parts of degasser 0.5-, gas-phase silica 0.5-0.8 part,
Filler 10-50 part；Described filler Main Ingredients and Appearance is aluminium oxide；
Described epoxy resin anticorrosion outer layer 21 parts by weight are, linear bisphenol A type epoxy resin 30-38 part, and body is double
Phenol A type epoxy resin 6-8 part, brominated bisphenol A type epoxy resin 3-6 part, phenol aldehyde modified firming agent 10-16 part, auxiliary agent 3-6
Part, conductive black 2-5 part, filler 16-22 part, fire retardant 2-6 part, 2 parts of other conductive materials, curing accelerator 0.3-1 part,
Described filler is asbestos fibre or glass fibre.Such epoxy resin gluing internal layer 20 can improve sprayed on material and metal
The adhesive force on surface, prevents epoxy resin composite bed from coming off；Such epoxy resin anticorrosion outer layer 21 can play well
Anticorrosion and prevent cracking role.
In electrostatic spraying, body 1 encloses while movement along axis horizontal and is rotated about axis, and in body 1, axis highly sets
There is inner wall shower nozzle 11, inner wall shower nozzle 11 sprays to inwall；Body 1 is externally provided with outer wall shower nozzle, and outer wall shower nozzle includes convex tendon spray
12 and even surface shower nozzle 13, described convex tendon shower nozzle 12 is arranged in pairs, and forms knuckle 14, described one-tenth between convex tendon 3 and even surface
Two knuckles 14 of convex tendon 3 are respectively facing to the nozzle of the convex tendon shower nozzle 12 of setting；The even surface of outer wall and convex tendon 3 pass through to smooth
Face shower nozzle 13 sprays, and knuckle 14 passes through convex tendon shower nozzle 12 and compensates spraying.
As Fig. 5, electrostatic spraying is completed by spray assembly, and described spray assembly comprises guide rail 15, is slidably connected at guide rail
Support 16 on 15, described support 16 is provided with driving body 1 and encloses the drive mechanism 17 being rotated about axis, described guide rail 15 upper end
It is provided with inner wall shower nozzle 11, described inner wall shower nozzle 11 is arranged on support bar 18 one end, described support bar 18 is arranged along body 1 axis,
Described body 1 upper end is provided with outer wall shower nozzle, and described outer wall shower nozzle includes convex tendon shower nozzle 12 and even surface shower nozzle 13, even surface shower nozzle
Down, convex tendon shower nozzle 12 is arranged in pairs 13 nozzles, and the nozzle wind of the convex tendon shower nozzle 12 being arranged in pairs is not towards two foldings of convex tendon 3
Angle 14.
In spray, inner wall shower nozzle 11 is fixed with convex tendon shower nozzle 12 and even surface shower nozzle 13 position, and body 1 is sliding along guide rail 15
Dynamic being rotated by drive mechanism 17 simultaneously, body 1 inner and outer wall acts in inner wall shower nozzle 11 and even surface shower nozzle 13
Under be sprayed-on, because convex tendon 3 knuckle 14 and side are difficult to be sprayed-on, thus increase convex tendon shower nozzle 12 knuckle 14 and side are carried out
Compensate spraying, controlled by rational, the region that the nozzle of the convex tendon shower nozzle 12 being arranged in pairs is covered is precisely spiral convex rib 3
Through region.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of processing method of the helix gas drainage pipe being provided with epoxy resin layer it is characterised in that：Comprise the following steps：
1）, article points processing, cold-rolled steel coils are cut into the required strip of processing；
2）, tubulation, by tuber, cold-rolled steel coils are enclosed with its opposite side screw occlusion and connect, cold-rolled steel coils screw occlusion encloses and connects
Produced convex tendon all protrudes to outer surface of tube body；
3）, cutting, occlusion is enclosed the body connecing and is cut into required length；
4）, flange welding, first moving flange plate is socketed on body, then baffle ring is welded on one end of body, by body
Other end welding baffle ring or fixed flange；Welding is passed through on the internal gearing side of convex tendon and outer occlusal side；Above-mentioned welding is equal
Using the welding of semi-automatic carbon-dioxide arc welding bonding machine；
5）, weld inspection, using heads for crank detection of ultrasonic bonding lines instrument, weld seam is tested, detect weld seam inside whether have crackle,
Be mingled with, pore, slag inclusion, lack of penetration and incomplete fusion defect, should be up to state standards；All pressure vessel docking of ultrasonic examination
I grade of weld seam is qualified, and II grade of the pressure vessel butt weld of local ultrasound wave inspection is qualified；
6）, pressure testing inspection, by body two ends seal, apply two atmospheric pressure with air pump into body, body be immersed in water；
Water temperature is gradient to 40 DEG C from -40 DEG C, each at two end point temperatures stop 10 minutes, find no bubble be considered as qualified；
7）, ultrasound wave cleaning, by step 6）The body of middle test passes, moving flange plate, baffle ring and fixed flange immersion are clear
In washing liquid, ultrasonic power density is 0.35w/cm2, scavenging period is 5-10min, hot-air seasoning after cleaning；
8）, coating epoxy resin layer, body, moving flange plate, baffle ring and fixed flange are 180-200 DEG C in preheating temperature
Scope under preheat 10 minutes, epoxy resin is coated to tube surfaces shape by way of dip-coating, showering or electrostatic spraying
Become epoxy resin layer；
9）, solidification, by step 8）In workpiece after 180 degree -220 degree high-temperature baking about 15 minutes melting levelling and then solid
Change；
Step 7）In cleanout fluid constituent be：Fatty alcohol-polyoxyethylene ether 5-8%, Oleum Cocois alkanolamide 8-10%,
Triethanolamine oleate 2-4%, monoethanolamine 8-10%, BTA 0-1%, EDTA- disodium 1-2% and water 70-
75%.
2. be provided with the processing method of the helix gas drainage pipe of epoxy resin layer as claimed in claim 1 it is characterised in that：Institute
State step 8）In epoxy resin painting method be electrostatic spraying, described epoxy resin component comprise bisphenol-A type epoxy resin,
Firming agent, antistatic additive, fire retardant, degasser, gas-phase silica and filler, the parts by weight of described each component are:Bisphenol-A
100 parts of type epoxy resin, firming agent 20-40 part, antistatic additive 10-50 part, fire retardant 5-10 part, degasser 0.5- 1. 0
Part, gas-phase silica 0.5-0.8 part, filler 10-50 part；Described filler Main Ingredients and Appearance is aluminium oxide.
3. be provided with the processing method of the helix gas drainage pipe of epoxy resin layer as claimed in claim 2 it is characterised in that：Institute
State step 8）In epoxy resin painting method be composite coated method, step 7）The workpiece elder generation dip-coating epoxy resin gluing of middle gained
Epoxy resin gluing internal layer, after treating the solidification of epoxy resin gluing internal layer, is thickeied by internal layer by electrostatic spraying, then solid again
Change, by electrostatic spraying or dip-coating epoxy resin anticorrosion outer layer.
4. be provided with the processing method of the helix gas drainage pipe of epoxy resin layer as claimed in claim 3 it is characterised in that：Institute
Stating epoxy resin gluing internal layer Ingredient Wt number is：100 parts of bisphenol-A type epoxy resin, firming agent 20-40 part, antistatic
Agent 10-50 part, fire retardant 5-10 part, 1. 0 parts of degasser 0.5-, gas-phase silica 0.5-0.8 part, filler 10-50
Part；Described filler Main Ingredients and Appearance is aluminium oxide；
Described epoxy resin anticorrosion outer layer parts by weight are, linear bisphenol A type epoxy resin 30-38 part, body bisphenol-A type
Epoxy resin 6-8 part, brominated bisphenol A type epoxy resin 3-6 part, phenol aldehyde modified firming agent 10-16 part, auxiliary agent 3-6 part is conductive
White carbon black 2-5 part, filler 16-22 part, fire retardant 2-6 part, 2 parts of other conductive materials, curing accelerator 0.3-1 part, described filler
For asbestos fibre or glass fibre.
5. the processing method of the helix gas drainage pipe being provided with epoxy resin layer as described in claim 1 or 3 or 4, its feature
It is：In electrostatic spraying, body encloses while movement along axis horizontal and is rotated about axis, and in body, axis is highly provided with inwall
Shower nozzle, inner wall shower nozzle sprays to inwall；Body is externally provided with outer wall shower nozzle, and outer wall shower nozzle includes convex tendon shower nozzle and even surface spray
Head, described convex tendon shower nozzle is arranged in pairs, and forms knuckle, the nozzle of the described convex tendon shower nozzle being arranged in pairs between convex tendon and even surface
It is respectively facing two knuckles of convex tendon；The even surface of outer wall and convex tendon are sprayed by even surface shower nozzle, and knuckle passes through convex tendon shower nozzle
Compensate spraying.
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| CN106433400B (en) * | 2016-10-12 | 2018-11-30 | 孙健春 | A kind of Environmental protection water tank and its production technology |
| CN109021767B (en) * | 2016-10-12 | 2020-08-21 | 乐清市华尊电气有限公司 | Production process of water tank |
| CN106433268B (en) * | 2016-10-12 | 2019-08-09 | 广东瑞发水箱制品有限公司 | A kind of polychrome antirust, antistatic corrosion tank lid and its production technology |
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