CN105642517A - Preparation method for plastic-coated supporting framework and plastic-coated supporting framework - Google Patents
Preparation method for plastic-coated supporting framework and plastic-coated supporting framework Download PDFInfo
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- CN105642517A CN105642517A CN201610009838.6A CN201610009838A CN105642517A CN 105642517 A CN105642517 A CN 105642517A CN 201610009838 A CN201610009838 A CN 201610009838A CN 105642517 A CN105642517 A CN 105642517A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
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- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
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- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a preparation method for a plastic-coated supporting framework and the plastic-coated supporting framework. The preparation method comprises the following steps: (1), cutting and welding a base body, and then performing rust removal on the surface of the base body; (2), heating the base body after the rust removal to 170-179 DEG C, and then spraying plastic powder; and (3), keeping the temperature of the base body after spraying of the plastic powder to be 130-140 DEG C, then curing the base body for 18-25 minutes, and cooing and mounting the cured base body, so as to obtain the plastic-coated supporting framework. The preparation method for the plastic-coated supporting framework, provided by the invention, can solve the problems that a paint spraying process needs maintenance all year round and a plastic dipping process is poor in binding force of a plastic-dipped layer, and the plastic-coated supporting framework provided by the invention has the advantages of heat resistance, cold resistance, impact resistance, pressure resistance and ageing resistance, is relatively high in safe reliability, and has a service life being 15-30 years. The plastic-coated supporting framework is adjustable in color, smooth and clean in appearance, environment-friendly and sanitary, and convenient to clean.
Description
Technical field
The present invention relates to outdoor supporting framework field, specifically, it relates to the preparation method of supporting framework is moulded in a kind of painting and supporting framework is moulded in this painting.
Background technology
At present, outdoor three-dimensional supporting framework high speed billboard, beacon, light pole, flagpole, line bar, mobile or fixed (outdoor advertising board, warning sign, promotional plate, guiding tablet, Billboard), outdoor body of wall equipment supporter, movement or fixing clothes hanger etc. that domestic production makes make primarily of welding mopping and stainless steel, produce the three-dimensional supporting framework surface obtained easily to get rusty, need annual constantly mopping to safeguard, increase cost. Many three-dimensional supporting frameworks long neglected and in disrepair lose safe reliability, have become severe dangerous matter sources, endanger masses' safety at any time. And the bonding force that layer and matrix are moulded in the leaching of impregnation is not good, affect work-ing life.
In view of this, special proposition the present invention.
Summary of the invention
First object of the present invention is to provide a kind of painting to mould the preparation method of supporting framework, easily comes off to solve the existing supporting framework paint film that sprays paint, needs to carry out every year to safeguard and layer and the problem of basal body binding force difference are moulded in the leaching of impregnation. The preparation method of supporting framework is moulded in described painting, base part is eliminated rust, is coated with and moulds, solidify, can overcome in original supporting framework, spraying paint, supporting framework paint film easily comes off, layer and the shortcoming of basal body binding force difference are moulded in the leaching of impregnation, has the advantage combining the intensity of steel and the toughness of plastics.
2nd object of the present invention is that supporting framework is moulded in the painting providing a kind of preparation method adopting described painting to mould supporting framework to prepare, and this painting is moulded supporting framework and had smooth surface, bonding force cold-resistant, shock-resistant, withstand voltage, ageing-resistant, safe reliability relatively advantages of higher strong, heat-resisting. Supporting framework is moulded in this painting can outdoor application, can be used for industry, business and house outdoor advertising board, high speed billboard, promotional plate, warning sign, guiding tablet, Billboard, light pole, beacon, line bar) technical field such as outdoor body of wall equipment supporter, movement or fixing clothes hanger, purposes is extensive, it may also be useful to the time is 30 years.
In order to realize the above-mentioned purpose of the present invention, spy by the following technical solutions:
A preparation method for supporting framework is moulded in painting, comprises the following steps:
(1), by base part undertaken cutting, welding, then to the surface derusting of base part;
(2), by the base part after rust cleaning being heated to 170-179 DEG C, then powder is moulded in spraying;
(3), by the temperature spraying the base part after moulding powder remain on 130-140 DEG C, then solidify 18-25 minute, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
The preparation method of supporting framework is moulded in painting provided by the invention, and the powder of moulding of spraying itself can be corrosion-resistant, ageing-resistant, and the bonding force therefore moulding powder and base part moulds the heat-resisting cold-resistant, shock-resistant, withstand voltage of supporting framework for being really coated with, and ageing-resistant performance seems very important. the present invention first eliminates rust to composition is coated with the base part moulding outdoor three-dimensional supporting framework, obtains the base part of certain slickness, and the process of rust cleaning mainly removes the oxide skin of substrate surface, to improve coating layer and the bonding force of base part, thus improves its anti-erosion property. and then base part is heated to certain temperature, powder is moulded in spraying, making to mould powder is better combined on base pipe, if temperature is too low, heat, the powder of moulding of fusing sprays to the surface quenching of base part, coating layer bonding force can be caused to decline, impact is coated with the performance moulding supporting framework, by solidification when certain temperature, avoid moulding powder to shrink at base part surface forming, cause departing from base part, powder and the fully laminating of base part surface is moulded after can making fusing after heat preservation solidification, supporting framework is moulded in final obtained painting, and changing painting, to mould supporting framework heat-resisting cold-resistant, shock-resistant, withstand voltage, ageing-resistant, work-ing life can reach 15-30, smooth appearance, environmentally-friendly sanitary, convenient cleaning.
Base part is heated to 170-179 DEG C, is conducive to improving and moulds powder and spray to the bonding force on base part, avoid moulding powder quenching and departing from base part, to improve cold-resistant heat-resisting, shock-resistant, withstand voltage, the ageing-resistant performance of supporting framework. And continuing after spray coating to be incubated base part, to reach same object, and the temperature being incubated can not be too low, the too low object not reaching raising coating layer and base part bonding force, and temperature is too high, can cause moulding powder fusing, surface is uneven, and therefore temperature to be controlled at 130-140 DEG C.
The mode of the base part cooling after solidification can be ventilating and cooling, it is also possible to adopt naturally cooling, and the time of general cooling, at 1-2 hour, is avoided destroying coating layer.
In addition, according to the effect of spraying, also comprise between step (2) and step (3): after having sprayed, product is checked and coating thin location, drain spray place are filled spray. Supporting framework is moulded with the obtained painting moulding powder distribution equal.
Preferably, moulding powder described in is the polyethylene powders adding UV light absorber.
Polyethylene (polyethylene is called for short PE) is that ethene is through being polymerized obtained a kind of thermoplastic resin. Industrially, the multipolymer of ethene and a small amount of alpha-olefin is also comprised. Polyethylene is without smelly, nontoxic, and feel, like wax, has excellent resistance to low temperature (minimum use temperature can reach-100��-70 DEG C), and chemical stability is good, the erosion (the not resistance to acid with oxidizing property) of the most of soda acid of ability. Being insoluble to common solvent under normal temperature, water-absorbent is little, and electrical insulating property is excellent.
UV light absorber is a kind of photostabilizer, can absorb the ultraviolet part in sunlight and fluorescence light source, and itself does not change. Adding the polyethylene powders of UV light absorber, it is possible to the ultraviolet when the opposing sun in outdoor irradiates, extend work-ing life, opposing ultraviolet is to the damage of coating.
Preferably, the thickness of powder is moulded in described spraying is 2.1-2.5mm.
After having sprayed, product is checked, coating thin location, drain spray place are filled spray, and with coating special thickness tester, top coat is detected. Moulding outdoor three-dimensional supporting framework to make the painting obtained and can ensure certain work-ing life, ensure that again powder moulded by polyethylene and the laminating degree between outdoor three-dimensional supporting framework base part is moulded in painting, to ensure that use properties is superior, the thickness of spraying is 2.1-2.5mm. Coating is too thin, does not have to be coated with and moulds heat-resisting cold-resistant, shock-resistant, withstand voltage, the ageing-resistant effect wanting to reach; Coating is too thick affects the bonding force of itself and base part, affects its heat-resisting cold-resistant, shock-resistant, withstand voltage, ageing-resistant effect equally.
Preferably, described in mould powder be polyethylene powders, its granularity is not more than 200 ��m.
Preferably, the density of the polyethylene powders of described interpolation UV light absorber is 1.3-1.5g/cm3
Certain particle size to mould the supporting framework base part stickiness after powder and rust cleaning better, thus reach better heat-resisting cold-resistant, shock-resistant and withstand voltage effect. Can not completely melt when being coated onto base part surface because particle diameter is to be painted too greatly, affect the surface property of coating, cause coating layer uneven, affect the bonding force of itself and base part, and then it is heat-resisting cold-resistant to affect it, shock-resistant, withstand voltage, ageing-resistant performance, and work-ing life.
Further, the density of polyethylene powders affect after polyethylene powders fusing with rust cleaning after the laminating degree of base part, and then the obtained painting of impact is moulded, and outdoor three-dimensional supporting framework is shock-resistant and withstand voltage properties. Therefore, the density of polyethylene is 1.3-1.5g/cm3��
Preferably, granularity be 150 ��m-200 ��m mould powder account for described in mould the 0.1%-0.5% of powder gross weight.
In preferred situation, particle diameter does not exceed 0.5% at 150-200 ��m.
Preferably, described rust cleaning specifically comprises: adopt the method for derusting by sandblast to eliminate rust Sa2-Sa3 level.
Rust cleaning can adopt machine automatically to operate, it is also possible to adopts manual polishing rust cleaning, it may be preferred that adopts air compressor conveying steel sand ball that the surface of described base pipe is carried out derusting by sandblast. Derusting grade specification is see GB8923-88 " before application steel surface corrosion and derusting grade ".
Injection or impelling rust cleaning, represent with Sa, it is possible to be divided into four grades: (1), Sa1 level-slight derusting by sandblast: surface should not have visible dirt, grease and attachment oxide skin loosely, paint coating, iron rust and impurity etc.; (2), Sa2 level-derusting by sandblast thoroughly: surface should be removed substantially without visible grease, dirt, oxide skin, iron rust, paint coating and impurity, and residue answers adhere firmly; (3), Sa2.5 level-derusting by sandblast very thoroughly: surface does not have visible grease, oxide skin, dirt, paint coating and impurity, and residue vestige only shows slight color spot or the point-like of striated; (4), Sa3 level-derusting by sandblast is clean to steel surface: surface does not have visible grease, dirt, oxide skin, iron rust, paint coating and impurity, and surface has uniform metallic luster. In the present invention, must eliminate rust and be greater than more than Sa1 level, can by all dirt removals such as the scales on base part surface, and set up very important basic graphic (i.e. usual so-called hair side) at workpiece surface, and can by exchanging varigrained abrasive material, roughness in various degree is reached than the abrasive material of exhibition grinding materials and grinding tool like flying, greatly improve workpiece and coating, plate the bonding force expected, make bonding more firm of coating layer, better quality, heat-resisting cold-resistant to improve it, shock-resistant, withstand voltage, ageing-resistant performance, and work-ing life.
Preferably, the method for powder is moulded in described spraying is electrostatic powder spraying.
Polyethylene powder coating is the coating of pure solids component, adopts electrostatic powder spraying to carry out full-automatic spraying, spraying more even, a large amount of or super powder sprayed, it is easy to collect by recovery system, reach the object of recycling. Therefore, the rate of utilization of powder coating almost can reach 100%, reduces the processing cost of waste, the degree of environmental pollution can be made to drop to minimum simultaneously.
Preferably, described base part is metal matrix part, specifically comprises: one or more in pipe, circle pipe, weldless steel tube, Welded Steel Pipe, spiral tube, alloy steel pipe, galvanized steel pipe, stainless steel tube, angle bar, zinc-plated angle bar, stainless steel angle bar, band iron, round steel.
Difference according to metal matrix part, can carry out different disposal. As: if desired to the internal spray powder of metal matrix part, then first to the inside of metal matrix part and or outside eliminate rust, then carry out inner spraying, external spray can carry out together with internal spray; If not needing the inside to metal matrix part to carry out spraying base ethylene powder, as selected zinc-plated base part, then directly eliminated rust in the outside of base part by bar, angle bar etc., then powder is moulded in spraying.
The preparation method that supporting framework is moulded in painting provided by the present invention is applicable to multiple different metal matrix part, and their combination, it is possible to obtains both possessing the intensity of steel, has both again the supporting framework of the toughness of plastics.
Painting described in a kind of basis is moulded painting prepared by the preparation method of supporting framework and is moulded supporting framework.
Present invention also offers above-mentioned outdoor painting to mould the painting that the preparation method of supporting framework obtains and mould supporting framework. This outdoor stereo plastic coating supporting framework can be used for industry, business and house outdoor advertising board, high speed billboard, promotional plate, warning sign, guiding tablet, Billboard, light pole, beacon, line bar) the technical field purposes such as outdoor body of wall equipment supporter, movement or fixing clothes hanger is extensive.
In addition, adopt solidifying agent, thinner and mould powder, be ratio mixing, the spraying of 1:10:3 according to weight ratio, it is possible to be used as to repair the damaged place of transport installation process, it is to increase be coated with the aesthetic moulding supporting framework. The moulding powder and can adopt shades of colour of spraying, such as yellow, white, blueness, green, black, grey, red etc., or can determine paint color according to personal like.
Compared with prior art, the useful effect of the present invention is:
(1) preparation method of supporting framework is moulded in painting provided by the invention, is eliminated rust by base part by specific step, is coated with and moulds, solidify, has the advantage combining the intensity of steel and the toughness of plastics.
(2) painting provided by the invention is moulded the painting prepared by the preparation method of supporting framework and is moulded supporting framework, has heat-resisting cold-resistant, shock-resistant, withstand voltage, ageing-resistant advantage, and safe reliability is higher, it may also be useful to the life-span can reach 15-30.
(3) painting provided by the invention is moulded the painting prepared by the preparation method of supporting framework and is moulded supporting framework, Color tunable, smooth appearance, environmentally-friendly sanitary, convenient cleaning.
Embodiment
Embodiment of the present invention being described in detail below in conjunction with embodiment, but it will be understood to those of skill in the art that, the following example is only for illustration of the present invention, and should not be considered as limiting the scope of the invention. Unreceipted concrete condition person in embodiment, conveniently the condition of condition or manufacturers's suggestion carries out. Agents useful for same or the unreceipted production firm person of instrument, be and can buy, by commercially available, the conventional products obtained.
Embodiment 1
The preparation method of supporting framework is moulded in painting provided by the invention, specifically comprises the following steps:
(1), by base part undertaken cutting, welding, then to the surface derusting of base part;
(2), by the base part after rust cleaning being heated to 170 DEG C, then powder is moulded in spraying;
(3), by the temperature spraying the base part after moulding powder remain on 130 DEG C, then solidify 18 minutes, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
Embodiment 2
S21, undertaken base part cutting, welding, then adopt air compressor conveying steel sand ball that the surface of base part is carried out derusting by sandblast, reach Sa2 level;
S22, by rust cleaning after base part be heated to 179 DEG C, then spraying mould powder, coating thickness is 2.1mm;
Wherein, moulding powder is polyethylene powders, and its granularity is not more than 200 ��m, and its density is 1.3g/cm3, and the mould powder of granularity between 150 ��m-200 ��m accounts for and moulds the 0.1% of powder gross weight;
S23, powder is moulded in spraying after the temperature of base part remain on 140 DEG C, then solidify 18 minutes, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
Embodiment 3
S31, undertaken base part cutting, welding, then to the surface derusting of base part, reach Sa3 level;
S32, by rust cleaning after base part be heated to 165 DEG C, then adopt electrostatic powder spraying spraying mould powder, coating thickness is 2.5mm;
Wherein, moulding powder is polyethylene powders, and its granularity is not more than 200 ��m, and its density is 1.5g/cm3, and the mould powder of granularity between 150 ��m-200 ��m accounts for and moulds the 0.5% of powder gross weight;
S33, powder is moulded in spraying after the temperature of base part remain on 135 DEG C, then solidify 25 minutes, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
Embodiment 4
S41, undertaken base part cutting, welding, then to the surface derusting of base part, reach Sa2.5 level;
S42, by rust cleaning after base part be heated to 179 DEG C, then adopt electrostatic powder spraying spraying mould powder, coating thickness is 2.3mm;
Wherein, moulding powder is uvioresistant polyethylene powders, and its granularity is not more than 200 ��m, and its density is 1.4g/cm3, and the mould powder of granularity between 150 ��m-200 ��m accounts for and moulds the 0.3% of powder gross weight;
S43, powder is moulded in spraying after the temperature of base part remain on 140 DEG C, then solidify 20 minutes, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
Embodiment 5 prepares a kind of motorway list column billboard
Double-faced advertising board is a kind of board face form of single column billboard, is made up of 2 substantially parallel board faces, is mainly suitable for the both sides of single road, and the vision effect considering vehicle movement having, angle by a small margin is arranged in the board face of part two sides board. And three boards are mainly used in intersection position. At present conventional single column billboard one side board face size is mainly 18m �� 6m, also has the board face size of 5m �� 15m and 7m �� 21m, should consider the regulation in local appearance of the city management etc. in design board face size fashion. The height of single column billboard is difference to some extent according to the height on road surface, domestic conventional height is generally the above 18m in road surface (counting from top, board face), owing to considering advertising results, single column billboard of total height 25m is comparatively common, have even to reach more than 30 meter high.
Making step is as follows:
Using spiral tube DN800*7 as being coated with the three-dimensional support moulding billboard, bottom adopts welding flange, and pre-embedded bolt is connected with being embedded in concrete foundation, and top card face framework adopts outer frame master to be supported for 50 angle bar, and pair is supported for 40 angle bar, rack 30 angle bar, 1mm galvanized sheet iron front cover; U-shaped painting is adopted to mould card hoop fixing, plug-in 10 �� 50mm band iron welding 200mmIt is coated with ironshaper cat ladder.
Spiral tube and angle bar adopt air compressor conveying steel sand ball inside and outside steel pipe and angle bar outside is carried out derusting by sandblast, makes rust cleaning effect all reach Sa2 level;
After having eliminated rust, spiral tube and flange are carried out soldering, top advertising sign face framework is carried out welding assembly, according to overall dimension segmentation welding, the length of welding is decided according to the size of heating in medium frequency stove, (the heating in medium frequency stove production specification degree of depth 6 meters and 12 meters that existing market generally adopts, it is in the majority that furnace port diameter is not more than 2 meters), product after rust cleaning, welding, weld being polished by track haulage machine, is delivered to heating in medium frequency stove and heats, and temperature controls at 230 DEG C;
Transporting the product after heating to electrostatic spraying machine production line with track haulage machine and carry out steel pipe spraying inside and outside, angle bar framework trypsin method, the powder of moulding of spraying adopts uvioresistant polyethylene powders, and the density of polyethylene is 1.3g/cm3, the granularity of polyethylene powders is not more than 200 ��m, and the weight percentage that the granularity polyethylene powders that is greater than 150 ��m accounts for total polyethylene powders is 1.0%;
The color moulding powder is grey, and the thickness of spiral tube external spray is 2.0mm, and the thickness of internal spray is 1.5mm;
After having sprayed, product is checked, coating thin location, drain spray place are filled spray, and with coating special thickness tester, top coat is detected;
Detecting qualified rear feeding and solidify workshop, solidification value is at 200 DEG C, and set time is 18min;
Solidify the cooling of laggard sector-style, assembled welding is finally carried out according to layout design size after having lowered the temperature, after having welded, welding place is polished, the coating layer damaged, adopt solidifying agent, thinner and color to mould powder and carry out the reparation of damaged place according to the repair liquid that the ratio of 1:10:3 is modulated, packaging is dispatched from the factory, in-site installation, also breakage place can be adopted repair liquid reparation in field-mounted process.
Experimental example 1 is coated with and moulds supporting framework performance test
Painting prepared by embodiment 1-5 being moulded supporting framework and carries out performance test, test event and the standard adopted are as shown in table 1, and compare with impregnation with not having with choosing to spray paint, and experimental result is as shown in table 2.
Table 1 performance test project and standard
Table 2 test result
Experiment proves, painting provided by the invention moulds that the coatingsurface of supporting framework is level and smooth, smooth, uniform color, without secretly steeping, without pit, corrugationless, flawless. as can be seen from Table 2, supporting framework top coat excellent property is moulded in painting provided by the invention, the supporting framework paint film that sprays paint can be overcome easily come off simultaneously, need to carry out every year to safeguard and layer and the shortcoming of basal body binding force difference are moulded in the leaching of impregnation, combine the intensity of metal and the toughness of plastics, and test discovery, by the temperature of insulation after the temperature of change base part heating and plastic-blasting, wear resistance and horizontal flow impact on this supporting framework are very big, change this two temperature, can effectively improve horizontal flow and the wear resisting property of coating layer, accomplish heat-resisting cold-resistant, shock-resistant, withstand voltage, ageing-resistant, work-ing life can reach 15-30, smooth appearance, environmentally-friendly sanitary, convenient cleaning, safe reliability is higher.
In sum, the preparation method of supporting framework is moulded in painting provided by the invention, is eliminated rust by base part by specific step, is coated with and moulds, solidify, it is possible to overcomes steel pipe simultaneously and easily get rusty, the shortcoming that plastic tube intensity is weak, combines the intensity of metal and the toughness of plastics. Painting provided by the invention is moulded the painting prepared by the preparation method of supporting framework and is moulded supporting framework, has heat-resisting cold-resistant, shock-resistant, withstand voltage, ageing-resistant advantage, and safe reliability is higher, it may also be useful to the life-span can reach 15-30.Supporting framework is moulded in this painting, Color tunable, smooth appearance, environmentally-friendly sanitary, convenient cleaning.
Although illustrate and describing the present invention with specific embodiment, but it will be appreciated that can make when not deviating from the spirit and scope of the present invention many other change and amendment. Therefore, it means that comprise all such changes and modifications belonging in the scope of the invention in the following claims.
Claims (10)
1. the preparation method of supporting framework is moulded in a painting, it is characterised in that, comprise the following steps:
(1), by base part undertaken cutting, welding, then to the surface derusting of base part;
(2), by the base part after rust cleaning being heated to 170-179 DEG C, then powder is moulded in spraying;
(3), by the temperature spraying the base part after moulding powder remain on 130-140 DEG C, then solidify 18-25 minute, by the base part cooling after solidification, install, obtain painting and mould supporting framework.
2. the preparation method of supporting framework is moulded in painting according to claim 1, it is characterised in that, described in mould powder be add UV light absorber polyethylene powders.
3. the preparation method of supporting framework is moulded in painting according to claim 1, it is characterised in that, it is 2.1-2.5mm that the thickness of powder is moulded in described spraying.
4. the preparation method of supporting framework is moulded in painting according to claim 2, it is characterised in that, the granularity of the polyethylene powders of described interpolation UV light absorber is not more than 200 ��m.
5. the preparation method of supporting framework is moulded in painting according to claim 4, it is characterised in that, the density of the polyethylene powders of described interpolation UV light absorber is 1.3-1.5g/cm3��
6. the preparation method of supporting framework is moulded in painting according to claim 5, it is characterised in that, granularity be 150 ��m-200 ��m mould powder account for described in mould the 0.1%-0.5% of powder gross weight.
7. the preparation method of supporting framework is moulded in painting according to claim 1, it is characterised in that, described rust cleaning specifically comprises and adopts the method for derusting by sandblast to eliminate rust Sa2-Sa3 level.
8. the preparation method of supporting framework is moulded in painting according to claim 1, it is characterised in that, it is electrostatic powder spraying that the method for powder is moulded in described spraying.
9. the preparation method of supporting framework is moulded in painting according to claim 1, it is characterized in that, described base part is metal matrix part, specifically comprises: one or more in square tube, circle pipe, weldless steel tube, Welded Steel Pipe, spiral tube, alloy steel pipe, galvanized steel pipe, stainless steel tube, angle bar, zinc-plated angle bar, stainless steel angle bar, band iron, round steel.
10. supporting framework is moulded in painting prepared by the preparation method that supporting framework is moulded in a painting according to the arbitrary item of claim 1-9.
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| CN201610009838.6A CN105642517A (en) | 2016-01-07 | 2016-01-07 | Preparation method for plastic-coated supporting framework and plastic-coated supporting framework |
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| CN201610009838.6A CN105642517A (en) | 2016-01-07 | 2016-01-07 | Preparation method for plastic-coated supporting framework and plastic-coated supporting framework |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899908A (en) * | 2017-10-09 | 2018-04-13 | 扬州纯平大师工具有限公司 | Paint cylinder brush stent workmanship of spraying plastics |
| CN109483410A (en) * | 2019-01-03 | 2019-03-19 | 河北天振工程技术有限公司 | Corrugated steel plastic dipping production line |
| CN111055252A (en) * | 2019-12-31 | 2020-04-24 | 苏邦金属制品(南通)有限公司 | High-applicability working platform and machining process thereof |
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| CN107899908A (en) * | 2017-10-09 | 2018-04-13 | 扬州纯平大师工具有限公司 | Paint cylinder brush stent workmanship of spraying plastics |
| CN111376917A (en) * | 2018-12-27 | 2020-07-07 | 海芙德建筑产品(上海)有限公司 | Method for processing shielding door threshold by adopting PVC plastic coating |
| CN109483410A (en) * | 2019-01-03 | 2019-03-19 | 河北天振工程技术有限公司 | Corrugated steel plastic dipping production line |
| CN111055252A (en) * | 2019-12-31 | 2020-04-24 | 苏邦金属制品(南通)有限公司 | High-applicability working platform and machining process thereof |
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