CN103074960A - Double-layer epoxy resin coating reinforcing steel bar and manufacturing method thereof - Google Patents
Double-layer epoxy resin coating reinforcing steel bar and manufacturing method thereof Download PDFInfo
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- CN103074960A CN103074960A CN2012102860003A CN201210286000A CN103074960A CN 103074960 A CN103074960 A CN 103074960A CN 2012102860003 A CN2012102860003 A CN 2012102860003A CN 201210286000 A CN201210286000 A CN 201210286000A CN 103074960 A CN103074960 A CN 103074960A
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Abstract
The present invention discloses a double-layer epoxy resin coating reinforcing steel bar, which comprises a base layer reinforcing steel bar, wherein an inner coating is coated on the base layer reinforcing steel bar, and an outer coating is coated on the inner coating. The present invention further discloses a preparation method for the double-layer epoxy resin coating reinforcing steel bar. With the double-layer epoxy resin coating reinforcing steel bar, engineering construction cost can be reduced, engineering quality can be effectively ensured, and engineer use age can be substantially prolonged.
Description
Technical field
The invention belongs to Material Field, be specifically related to a kind of double-deck Epoxy Resin Coated Steel Bars and preparation method thereof.
Background technology
Along with the develop rapidly of nation-building, traditional reinforcing bar material can not satisfy the requirements at the higher level of engineering construction.Traditional reinforcing bar is long-term to use with cement as the inner structure of building, can make like this rebar surface as far as possible less and contact with air, its aging speed that gets rusty is extenuated, the life-span can reach 30 years.But, present building, especially overhead, bridge, dam etc., projected life is all more than 60 years, and is higher to the used steel bar anti-corrosion performance requirement of concrete.
Summary of the invention
Goal of the invention: the object of the invention is to the deficiency for existing coated reinforcement technology, a kind of double-deck Epoxy Resin Coated Steel Bars is provided.
Another object of the present invention is to provide the preparation method of above-mentioned double-deck Epoxy Resin Coated Steel Bars.
Technical scheme: in order to achieve the above object, the present invention specifically finishes like this: a kind of double-deck Epoxy Resin Coated Steel Bars, comprise basic unit's reinforcing bar, and basic unit's reinforcing bar scribbles undercoating outward, and undercoating is coated with external coating outward.
Wherein, described undercoating, external coating are epoxide resin material.
Wherein, described basic unit reinforcing bar is round steel, screw-thread steel or shaped steel.
Prepare the method for above-mentioned double-deck Epoxy Resin Coated Steel Bars, may further comprise the steps:
(1) basic unit's reinforcing bar is put into transfermatic, enter pre-processing device, remove surface impurity by ball blast or sandblast;
(2) reinforcing bar with surface cleaning adopts electrically heated mode, makes the rebar surface temperature reach 220-260 ℃;
(3) reinforcing bar after the heating is sent into the electrostatic spraying chamber by transfermatic, makes epoxy powder be adsorbed on rebar surface to epoxy powder by the mode of electrostatic spraying, and epoxy powder thickness is 0.1 ~ 0.2cm;
(4) spray immediately the wear-resisting high-performance epoxy powder of one deck until the first floor epoxy powder after rebar surface solidifies, this layer epoxy powder thickness is 0.3 ~ 0.5cm again;
(5) until second layer epoxy powder after rebar surface solidifies, adopt the mode of spray to make the coated reinforcement cooling, reach normal temperature.
Wherein, described epoxy powder is that 75 ~ 85% epoxy resin, 5 ~ 10% phenolic curing agent and 5 ~ 20% titanium dioxide mix by percetage by weight.
Beneficial effect: the present invention compares with conventional art, has the following advantages:
1, can substitute the expensive materials such as stainless steel by enough plain barss, greatly lower construction cost;
2, basic unit's reinforcing bar can not directly contact with air etc., has increased application life, can reach more than 70 years;
3, external coating has more the Wear-resistant corrosion-resistant performance, can satisfy the needs of various adverse circumstances construction projects.
Description of drawings
Accompanying drawing is the structural representation of the double-deck Epoxy Resin Coated Steel Bars of the present invention.
The specific embodiment
Embodiment 1:
Double-deck Epoxy Resin Coated Steel Bars as shown in the figure comprises 1 foundation layer reinforcing bar 1, and basic unit's reinforcing bar 1 is applied by undercoating 2, and outermost layer is coated with wear-and corrosion-resistant coating 3; Wherein, described undercoating, external coating are epoxide resin material.
Embodiment 2:
Epoxy coating preparation: be that 75% epoxy resin, 5% phenolic curing agent and 20% titanium dioxide mix by percetage by weight.
The preparation of double-deck epoxy-coated reinforcement: basic unit's reinforcing bar is put into transfermatic, enter pre-processing device, remove surface impurity by ball blast or sandblast; The reinforcing bar of surface cleaning is adopted electrically heated mode, make the rebar surface temperature reach 220 ℃; Reinforcing bar after the heating is sent into the electrostatic spraying chamber by transfermatic, makes epoxy powder be adsorbed on rebar surface to epoxy powder by the mode of electrostatic spraying, and epoxy powder thickness is 0.1cm; Spray immediately the wear-resisting high-performance epoxy powder of one deck until the first floor epoxy powder after rebar surface solidifies, this layer epoxy powder thickness is 0.3cm again; After rebar surface solidifies, adopt the mode of spray to make the coated reinforcement cooling until second layer epoxy powder, reach normal temperature.
Embodiment 3:
Epoxy coating preparation: be that 80% epoxy resin, 10% phenolic curing agent and 10% titanium dioxide mix by percetage by weight.
The preparation of double-deck epoxy-coated reinforcement: basic unit's reinforcing bar is put into transfermatic, enter pre-processing device, remove surface impurity by ball blast or sandblast; The reinforcing bar of surface cleaning is adopted electrically heated mode, make the rebar surface temperature reach 240 ℃; Reinforcing bar after the heating is sent into the electrostatic spraying chamber by transfermatic, makes epoxy powder be adsorbed on rebar surface to epoxy powder by the mode of electrostatic spraying, and epoxy powder thickness is 0.2cm; Spray immediately the wear-resisting high-performance epoxy powder of one deck until the first floor epoxy powder after rebar surface solidifies, this layer epoxy powder thickness is 0.4cm again; After rebar surface solidifies, adopt the mode of spray to make the coated reinforcement cooling until second layer epoxy powder, reach normal temperature.
Embodiment 4:
Epoxy coating preparation: be that 85% epoxy resin, 10% phenolic curing agent and 5% titanium dioxide mix by percetage by weight.
The preparation of double-deck epoxy-coated reinforcement: basic unit's reinforcing bar is put into transfermatic, enter pre-processing device, remove surface impurity by ball blast or sandblast; The reinforcing bar of surface cleaning is adopted electrically heated mode, make the rebar surface temperature reach 260 ℃; Reinforcing bar after the heating is sent into the electrostatic spraying chamber by transfermatic, makes epoxy powder be adsorbed on rebar surface to epoxy powder by the mode of electrostatic spraying, and epoxy powder thickness is 0.1cm; Spray immediately the wear-resisting high-performance epoxy powder of one deck until the first floor epoxy powder after rebar surface solidifies, this layer epoxy powder thickness is 0.5cm again; After rebar surface solidifies, adopt the mode of spray to make the coated reinforcement cooling until second layer epoxy powder, reach normal temperature.
Claims (5)
1. a double-deck Epoxy Resin Coated Steel Bars is characterized in that, comprises basic unit's reinforcing bar (1), the outer undercoating (2) that scribbles of basic unit's reinforcing bar (1), the outer external coating (3) that is coated with of undercoating (2).
2. double-deck Epoxy Resin Coated Steel Bars according to claim 1 is characterized in that, described undercoating (2), external coating (3) are epoxide resin material.
3. double-deck Epoxy Resin Coated Steel Bars according to claim 1 is characterized in that, described basic unit reinforcing bar (1) is round steel, screw-thread steel or shaped steel.
4. prepare the method for the described double-deck Epoxy Resin Coated Steel Bars of claim 1 ~ 3 any one, it is characterized in that, may further comprise the steps:
(1) basic unit's reinforcing bar is put into transfermatic, enter pre-processing device, remove surface impurity by ball blast or sandblast;
(2) reinforcing bar with surface cleaning adopts electrically heated mode, makes the rebar surface temperature reach 220-260 ℃;
(3) reinforcing bar after the heating is sent into the electrostatic spraying chamber by transfermatic, makes epoxy powder be adsorbed on rebar surface to epoxy powder by the mode of electrostatic spraying, and epoxy powder thickness is 0.1 ~ 0.2cm;
(4) spray immediately the wear-resisting high-performance epoxy powder of one deck until the first floor epoxy powder after rebar surface solidifies, this layer epoxy powder thickness is 0.3 ~ 0.5cm again;
(5) until second layer epoxy powder after rebar surface solidifies, adopt the mode of spray to make the coated reinforcement cooling, reach normal temperature.
5. the method for the double-deck Epoxy Resin Coated Steel Bars of described preparation according to claim 4 is characterized in that, described epoxy powder is that 75 ~ 85% epoxy resin, 5 ~ 10% phenolic curing agent and 5 ~ 20% titanium dioxide mix by percetage by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102860003A CN103074960A (en) | 2012-08-13 | 2012-08-13 | Double-layer epoxy resin coating reinforcing steel bar and manufacturing method thereof |
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| CN2012102860003A CN103074960A (en) | 2012-08-13 | 2012-08-13 | Double-layer epoxy resin coating reinforcing steel bar and manufacturing method thereof |
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| CN103074960A true CN103074960A (en) | 2013-05-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505768A (en) * | 2016-12-30 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of manufacture method of magneto, rotor and rotor |
| CN109251658A (en) * | 2018-08-23 | 2019-01-22 | 江苏永昊高强度螺栓有限公司 | A kind of abrasionproof treatment process of fastening bolt |
| CN109821719A (en) * | 2019-02-26 | 2019-05-31 | 桂林理工大学 | A kind of production method of coated reinforcement |
| CN109821923A (en) * | 2019-02-26 | 2019-05-31 | 桂林理工大学 | A kind of production method of anti-corrosion coating plain bar |
| CN115073998A (en) * | 2022-07-05 | 2022-09-20 | 富佰新材料(浙江)有限公司 | Frosted high-performance self-repairing composite epoxy coating steel bar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106505768A (en) * | 2016-12-30 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of manufacture method of magneto, rotor and rotor |
| CN109251658A (en) * | 2018-08-23 | 2019-01-22 | 江苏永昊高强度螺栓有限公司 | A kind of abrasionproof treatment process of fastening bolt |
| CN109821719A (en) * | 2019-02-26 | 2019-05-31 | 桂林理工大学 | A kind of production method of coated reinforcement |
| CN109821923A (en) * | 2019-02-26 | 2019-05-31 | 桂林理工大学 | A kind of production method of anti-corrosion coating plain bar |
| CN115073998A (en) * | 2022-07-05 | 2022-09-20 | 富佰新材料(浙江)有限公司 | Frosted high-performance self-repairing composite epoxy coating steel bar |
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Application publication date: 20130501 |