CN104017460A - Epoxy polyester coating steel-plastic water pipe and manufacturing method thereof - Google Patents
Epoxy polyester coating steel-plastic water pipe and manufacturing method thereof Download PDFInfo
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- CN104017460A CN104017460A CN201410212292.5A CN201410212292A CN104017460A CN 104017460 A CN104017460 A CN 104017460A CN 201410212292 A CN201410212292 A CN 201410212292A CN 104017460 A CN104017460 A CN 104017460A
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Abstract
The invention provides an epoxy polyester coating steel-plastic water pipe and a manufacturing method thereof. The epoxy polyester coating steel-plastic water pipe is formed by the steps of electrostatic spraying epoxy polyester powder on a pickling and phosphating treated steel pipe and sintering. The epoxy polyester coating comprises, by weight, 50-100 parts of an epoxy resin, 0-50 parts of a polyester resin, 2-20 parts of a curing agent, 10-50 parts of a pigment, 0.5-1.0 part of a degassing agent, 0.5-0.8 part of a flow phase-promoting agent and 0-50 parts of a filler. The epoxy polyester coating steel-plastic water pipe has significantly increased hardness, glossiness, water resistance and corrosion resistance, and meets the requirements of water pipe performance of underground coal mine.
Description
Technical field
The present invention relates to steel-plastics composite pipe, be specifically related to a kind of epoxy polyester Coated Steels can be applicable under coal mine and mould water pipe and preparation method thereof.
Background technology
Colliery mine water is the water source producing at roadway or getting working face in coal mine developing, mining process.There are surface water, aquifer water, goaf water and tomography water etc. in the source of Technique of Coal Mine Drainage.Colliery well water water quality has larger difference with its water quality of difference of mine Distribution Area, is mainly subject to the impact of geologic condition, coal seam characteristic, coal winning technology.According to pit water, containing the characteristic of pollutent, can roughly be divided into: cleaner pit water, acid mine water, mine water containing suspended substances, alkaline pit water and containing specific pollutant pit water.In addition, owing to there being the harm such as dust, water, fire, gas, noise, vibration, high temperature, high humidity in subsurface environment.Therefore, the application to pipeline this special dimension under coal mine, as the aspects such as intensity, hardness, erosion resistance, water tolerance, weathering resistance, scale inhibition performance and flame-retardant and anti-static have proposed requirement.Conventional galvanized pipe, cast iron pipe etc. are restricted in the use.And single plastics tubing is as PVC etc., owing to existing intensity low, fire-proof shock-proof poor performance, the easy defect such as aging, use range is also restricted.
Steel-plastics composite pipe is called for short steel and moulds pipe, is to take steel pipe as base tube, on its surface or the steel of surfaces externally and internally adhered plastics preservative coat mould composite prod.The features such as steel-plastics composite pipe has high strength, long lifetime, smooth surface, corrosion-resistant, antistatic, compressive property is good.In recent years, steel-plastics composite pipe is widely applied in plumbing field.Current domestic steel-plastic composite pipe kind is more, according to anti-corrosion mode difference, can be divided into plastic coated composite steel pipe, plastic lining composite steel pipe and cover plastic composite steel pipe outward.By material, can be divided into Steel-plastic compound pipe of PP, polypropylene steel-plastics composite pipe, polyvinyl chloride steel-plastics composite pipe and epoxy resin steel-plastic composite pipe, and epoxy polyester steel is moulded pipe and is not applied to temporarily the water shoot under coal mine.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of epoxy polyester steel that can be used for having under coal mine better hardness, glossiness, water tolerance and antiseptic property to mould water pipe and preparation method thereof.
For addressing the above problem, the invention provides a kind of epoxy polyester Coated Steels and mould water pipe and preparation method thereof.Described epoxy polyester coating is utilized the synergy of epoxy resin and vibrin, further improves the performance such as hardness, glossiness, water tolerance of epoxy coat; Making processes is for to process steel pipe through acid washing phosphorization, surface forms one deck phosphatize phosphate coat, then, at steel pipe surfaces externally and internally electrostatic spraying epoxy coating, forms epoxy resin steel-plastic structure after sintering.Concrete technical scheme is as follows:
Epoxy polyester Coated Steels is moulded a water pipe, comprises the epoxy polyester coating that is attached to steel pipe surfaces externally and internally, and described epoxy polyester coating is by epoxy resin, vibrin, solidifying agent, pigment, air release agent, gas-phase silica, media assemblage, the parts by weight of described each component are:
Epoxy resin 50-100 part,
Vibrin 0-50 part,
Solidifying agent 2-20 part,
Pigment 10-50 part,
Air release agent 0.5-1.0 part,
Gas-phase silica 0.5-0.8 part,
Filler 0-50 part,
Described solidifying agent is resol or modification Dyhard RU 100, and air release agent is st-yrax or polyethylene wax, and filler is barium sulfate, kaolin or wollastonite.
Another object of the present invention is to provide the making method that above-mentioned epoxy polyester Coated Steels is moulded water pipe, comprises the following steps:
press each composition weight umber of modified epoxy coating by epoxy resin, vibrin, solidifying agent, pigment, air release agent, gas-phase silica and filler after high-speed mixing, gained uniform mixture is added in single screw extrusion machine or twin screw extruder and is pushed.Extrusion machine machine cavity temperature is 70-85 ℃, and extruder head temperature is 95 ℃.By extrudate by compressing tablet, cooling, pulverize, to obtain particle diameter be 200-600 object powder coating in screening;
by the steel pipe after surperficial scale removal through washing 1-3 min, then use 70% chlorohydric acid pickling 15-25min, wash again 1-3 min, then show to adjust 2-3 min, it is 8-9 that table is adjusted pH, then carries out bonderizing 15-30 min, and Phosphating Solution pH is 2.5, wash again the 1-3 min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form the phosphatize phosphate coat of one deck 2-3um Dark grey or black gray expandable;
after steel pipe after acid washing phosphorization is air-dry, lift to electrostatic spraying apparatus, steel pipe is carried out to inside and outside spraying;
steel pipe after electrostatic spraying is sent into sintering oven and solidify, solidification value is 170-200 ℃, and the time is 30-45min, forms modified epoxy Coated Steels and moulds composite gas pipe.
Beneficial effect of the present invention is: the epoxy polyester Coated Steels that the present invention makes is moulded water pipe, high comprehensive performance, and cost performance is high.Epoxy resin and vibrin is compound, resin-coated hardness, glossiness, water tolerance and antiseptic property are significantly improved, adopt Powder Electrostatic Coating Technology to make steel simultaneously and mould pipe, not only reduced production cost, improved operating environment, and made the use properties of water pipe better meet colliery subsurface environment.
Embodiment
Below by specific embodiment, further describe technical scheme of the present invention.
Embodiment 1
100 parts of epoxy resin, 20 parts of resol, 50 parts of carbon blacks, 0.5 part of st-yrax, 0.8 part of gas-phase silica, 50 parts of wollastonites, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 80 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 1min, then use 70% chlorohydric acid pickling 25min, wash again 2 min, then show to adjust 3min, it is 8.5 that table is adjusted pH, then carries out bonderizing 15min, and Phosphating Solution pH is 2.5, wash again the 1min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 2.0um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 200 ℃ solidify 30 min, forms epoxy polyester Coated Steels and moulds water pipe, and its main performance index is in Table 1.
Embodiment 2
80 parts of epoxy resin, 20 parts of vibrin, 15 parts of resol, 35 parts of carbon blacks, 1.0 parts of st-yraxes, 0.5 part of gas-phase silica, 20 parts of barium sulfate, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 85 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 3min, then use 70% chlorohydric acid pickling 15min, wash again 1 min, then show to adjust 2min, it is 8.5 that table is adjusted pH, then carries out bonderizing 30min, and Phosphating Solution pH is 2.5, wash again the 3min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 2.8um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 190 ℃ solidify 40 min, forms epoxy/polyester steel and moulds water pipe, and its main performance index is in Table 1.
Embodiment 3
50 parts of epoxy resin, 50 parts of vibrin, 15 parts of resol, 40 parts of carbon blacks, 0.8 part of st-yrax, 0.8 part of gas-phase silica, 30 parts of kaolin, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 70 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 1min, then use 70% chlorohydric acid pickling 25min, wash again 1 min, then show to adjust 3min, it is 9.0 that table is adjusted pH, then carries out bonderizing 25min, and Phosphating Solution pH is 2.5, wash again the 2min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 2.4um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 180 ℃ solidify 40 min, forms epoxy steel and moulds composite gas pipe, and its main performance index is in Table 1.
Embodiment 4
30 parts of epoxy resin, 70 parts of vibrin, 2.0 g modification Dyhard RU 100s, 35 parts of carbon blacks, 0.6 part of st-yrax, 0.7 part of gas-phase silica, 40 parts of wollastonites, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 75 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 1min, then use 70% chlorohydric acid pickling 20min, wash again 1 min, then show to adjust 3min, it is 8.0 that table is adjusted pH, then carries out bonderizing 15min, and Phosphating Solution pH is 2.5, wash again the 2min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 2.3um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 180 ℃ solidify 40 min, forms epoxy steel and moulds composite gas pipe, and its main performance index is in Table 1.
Embodiment 5
50 parts of epoxy resin, 50 parts of vibrin, 3.5 g modification Dyhard RU 100s, 15 parts of carbon blacks, 0.7 part of st-yrax, 0.8 part of gas-phase silica, 45 parts of barium sulfate, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 80 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 2min, then use 70% chlorohydric acid pickling 20min, wash again 2 min, then show to adjust 3min, it is 8.5 that table is adjusted pH, then carries out bonderizing 30min, and Phosphating Solution pH is 2.5, wash again the 2min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 2.8um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 190 ℃ solidify 30 min, forms epoxy steel and moulds composite gas pipe, and its main performance index is in Table 1.
Embodiment 6
60 parts of epoxy resin, 40 parts of vibrin, 3.0 g modification Dyhard RU 100s, 10 parts of carbon blacks, 0.7 part of st-yrax, 0.8 part of gas-phase silica, 40 parts of kaolin, after high-speed mixing, are added to this uniform mixture in single screw rod and push.Machine cavity temperature is 80 ℃, and the temperature of extruder head is 95 ℃.By extrudate compressing tablet, particle diameter cooling, that pulverize, sieve, it is 200-600 object powder coating.
By the steel pipe after surperficial scale removal through washing 3min, then use 70% chlorohydric acid pickling 25min, wash again 3 min, then show to adjust 3min, it is 8.5 that table is adjusted pH, then carries out bonderizing 25min, and Phosphating Solution pH is 2.5, wash again the 3min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form one deck 3.0um Dark grey phosphatize phosphate coat.
Lifting spray equipment, carries out inside and outside electrostatic spraying to steel pipe after phosphatization respectively, and in sintering oven, 190 ℃ solidify 35 min, forms epoxy steel and moulds composite gas pipe, and its main performance index is in Table 1.
The above; only for the better embodiment of the present invention, but protection domain of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore protection domain of the present invention is as the criterion with the protection domain of claims.
。
Claims (2)
1. epoxy polyester Coated Steels is moulded a water pipe, it is characterized in that: comprise the epoxy polyester coating that is attached to steel pipe surfaces externally and internally, described epoxy polyester coating is by epoxy resin, vibrin, solidifying agent, pigment, air release agent, gas-phase silica, media assemblage, the parts by weight of described each component are:
Epoxy resin 50-100 part,
Vibrin 0-50 part,
Solidifying agent 2-20 part,
Pigment 10-50 part,
Air release agent 0.5-1.0 part,
Gas-phase silica 0.5-0.8 part,
Filler 0-50 part,
Described solidifying agent is resol or modification Dyhard RU 100, and air release agent is st-yrax or polyethylene wax, and filler is barium sulfate, kaolin or wollastonite.
2. make the method that epoxy polyester Coated Steels as claimed in claim 1 is moulded water pipe, it is characterized in that comprising the following steps:
press each composition weight umber of modified epoxy coating by epoxy resin, vibrin, solidifying agent, pigment, air release agent, gas-phase silica and filler after high-speed mixing, gained uniform mixture is added in single screw extrusion machine or twin screw extruder and is pushed; Extrusion machine machine cavity temperature is 70-85 ℃, and extruder head temperature is 95 ℃; By extrudate by compressing tablet, cooling, pulverize, to obtain particle diameter be 200-600 object powder coating in screening;
by the steel pipe after surperficial scale removal through washing 1-3 min, then use 70% chlorohydric acid pickling 15-25min, wash again 1-3 min, then show to adjust 2-3 min, it is 8-9 that table is adjusted pH, then carries out bonderizing 15-30 min, and Phosphating Solution pH is 2.5, wash again the 1-3 min post-passivation 1 min sector-style of going forward side by side dry, now in steel tube surface, form the phosphatize phosphate coat of one deck 2-3um Dark grey or black gray expandable;
after steel pipe after acid washing phosphorization is air-dry, lift to electrostatic spraying apparatus, steel pipe is carried out to inside and outside spraying;
steel pipe after electrostatic spraying is sent into sintering oven and solidify, solidification value is 170-200 ℃, and the time is 30-45min, forms modified epoxy Coated Steels and moulds composite gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410212292.5A CN104017460A (en) | 2014-05-20 | 2014-05-20 | Epoxy polyester coating steel-plastic water pipe and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410212292.5A CN104017460A (en) | 2014-05-20 | 2014-05-20 | Epoxy polyester coating steel-plastic water pipe and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440910A (en) * | 2015-12-17 | 2016-03-30 | 芜湖市宝艺游乐科技设备有限公司 | Environmental-protection anticorrosive polyester powder coating and preparation method thereof |
| CN105600085A (en) * | 2016-01-12 | 2016-05-25 | 苏州华源包装股份有限公司 | Tank processing technology and tank |
| CN105733185A (en) * | 2014-12-12 | 2016-07-06 | 比亚迪股份有限公司 | Composition, formed part and preparation method thereof, and application of modifier |
| CN109590198A (en) * | 2018-12-19 | 2019-04-09 | 昆山金百辰金属科技有限公司 | For the technique in automobile wheel hub surface plating aluminum or aluminum alloy |
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| CN1746239A (en) * | 2005-10-10 | 2006-03-15 | 湘潭市至诚涂料有限公司 | Cryogenic curing powdery coating for heat-sensitive substrate material |
| CN101497762A (en) * | 2009-02-27 | 2009-08-05 | 徐州正菱涂装工程技术研究中心 | Expansion type steel structure fireproofing powder paint and preparation thereof |
| CN102101966A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Powder paint for plastic coating of firefighting pipelines and manufacturing method thereof |
| CN103668151A (en) * | 2012-09-21 | 2014-03-26 | 上海天阳钢管有限公司 | Pretreatment process of low-carbon steel pipe |
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2014
- 2014-05-20 CN CN201410212292.5A patent/CN104017460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746239A (en) * | 2005-10-10 | 2006-03-15 | 湘潭市至诚涂料有限公司 | Cryogenic curing powdery coating for heat-sensitive substrate material |
| CN101497762A (en) * | 2009-02-27 | 2009-08-05 | 徐州正菱涂装工程技术研究中心 | Expansion type steel structure fireproofing powder paint and preparation thereof |
| CN102101966A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Powder paint for plastic coating of firefighting pipelines and manufacturing method thereof |
| CN103668151A (en) * | 2012-09-21 | 2014-03-26 | 上海天阳钢管有限公司 | Pretreatment process of low-carbon steel pipe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733185A (en) * | 2014-12-12 | 2016-07-06 | 比亚迪股份有限公司 | Composition, formed part and preparation method thereof, and application of modifier |
| CN105733185B (en) * | 2014-12-12 | 2018-12-21 | 比亚迪股份有限公司 | The purposes of composition, molded part and preparation method thereof and modifying agent |
| CN105440910A (en) * | 2015-12-17 | 2016-03-30 | 芜湖市宝艺游乐科技设备有限公司 | Environmental-protection anticorrosive polyester powder coating and preparation method thereof |
| CN105600085A (en) * | 2016-01-12 | 2016-05-25 | 苏州华源包装股份有限公司 | Tank processing technology and tank |
| CN109590198A (en) * | 2018-12-19 | 2019-04-09 | 昆山金百辰金属科技有限公司 | For the technique in automobile wheel hub surface plating aluminum or aluminum alloy |
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Application publication date: 20140903 |