CN101418448A - A kind of production method of porcelain enamel steel tube - Google Patents
A kind of production method of porcelain enamel steel tube Download PDFInfo
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- CN101418448A CN101418448A CNA2008100797969A CN200810079796A CN101418448A CN 101418448 A CN101418448 A CN 101418448A CN A2008100797969 A CNA2008100797969 A CN A2008100797969A CN 200810079796 A CN200810079796 A CN 200810079796A CN 101418448 A CN101418448 A CN 101418448A
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- coat enamel
- enamel
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- steel pipe
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Abstract
A kind of production method of porcelain enamel steel tube, purpose are good looking appearance, withstand voltage, good corrosion resistance; The inventive method is earlier steel pipe to be soaked 10-15 minute with hydrochloric acid soln; Again with flushing with clean water clean back oven dry; Preparation ground-coat enamel cover-coat enamel; With spray gun the pasty state ground-coat enamel evenly is sprayed on the inside and outside wall of steel pipe then; Advance stoving oven, after the oven dry in about 10 minutes of 150 ℃ of-200 ℃ of low temperature, come out of the stove; With spray gun the pasty state cover-coat enamel evenly is sprayed on the inside and outside wall of steel pipe again; Push in the enamel furnace, come out of the stove after high temperature sintering 8-15 minute through 900 ℃-1000 ℃; Naturally cooling.
Description
Technical field
The present invention relates to a kind of production method of porcelain enamel steel tube.
Background technology
On office building and residential building, all use steel pipe or cast iron pipe as upper and lower conduit at present in a large number, but steel pipe or cast iron pipe get rusty easily after meeting water, not only influence attractive in appearance, and polluted water, also easy blocking pipe.Some places adopt pvc pipe to make upper and lower conduit, but this plastic flow tube water is loud, and withstand voltage properties is also poor, and what have does not reach environmental requirement, can't replace steel pipe or cast iron pipe fully and use.
Summary of the invention
The object of the invention is exactly the deficiency that overcomes above-mentioned prior art, and the production method of the porcelain enamel steel tube of a kind of good looking appearance, withstand voltage, good corrosion resistance is provided.
It is base material that the present invention adopts steel pipe, carries out sintering behind the inside and outside wall hanging porcelain.Concrete grammar is:
(1) cleans: steel pipe concentration was soaked 10-15 minute for the 30%-33% hydrochloric acid soln; Again with flushing with clean water clean back oven dry;
(2) preparation ground-coat enamel cover-coat enamel: stir into pasty state with adding proper amount of clear water in silicate ground-coat enamel powder or the cover-coat enamel powder; The per-cent of the add-on of clear water and ground-coat enamel powder or cover-coat enamel grain weight amount is: 3.5-4.0:1.
(3) go up ground-coat enamel: the inside and outside wall that the pasty state ground-coat enamel evenly is sprayed on steel pipe with spray gun;
(4) oven drying at low temperature: advance stoving oven, after the oven dry in about 10 minutes of 150 ℃ of-200 ℃ of low temperature, come out of the stove;
(5) go up cover-coat enamel: the inside and outside wall that the pasty state cover-coat enamel evenly is sprayed on steel pipe with spray gun;
(6) sintering: push in the enamel furnace, come out of the stove after high temperature sintering 8-15 minute through 900 ℃-1000 ℃;
(7) cooling: naturally cooling.
The silicate ground-coat enamel according to the prescription of weight percent meter is: borax: 25-30%, quartz: 20-25%, feldspar: 20-25%, fluorite: 5-10%, pure cash: 1-2%; Weisspiessglanz: 7-15%.Preparing the back ground-coat enamel is powdery, and weight adds up to 100%.
The silicate cover-coat enamel according to the prescription of weight percent meter is: borax: 35-40%, quartz: 25-30%, feldspar: 10-15%, water glass 5-10%, SODIUMNITRATE: 5-10%; Titanium oxide: 10-18%.Preparing the back cover-coat enamel is powdery, and weight adds up to 100%.
The present invention is applicable to the batch process porcelain enamel steel tube.The inventive method is simple and practical, production efficiency is high.The porcelain enamel steel tube tolerate P-levels of being produced, anti-sulphur, acidproof, alkaline-resisting, good looking appearance.Can also in silicate cover-coat enamel powder, add color dye, produce chromatic porcelain enamel steel tube.The invention solves steel pipe aged deterioration problem, the work-ing life of having improved steel pipe.Be suitable for office building and residential houses and use, also be widely used in industrial circle uses such as coal gas chemical industry.
Embodiment
It is base material that the present invention adopts GB mechanism steel pipe, inside and outside wall hanging porcelain, and enamel furnace can adopt cabinet-type electric furnace or tunnel furnace.Also can adopt in the production steel pipe base material is put into the method for rolling in ground-coat enamel (or cover-coat enamel) pond to ground-coat enamel on the steel pipe or cover-coat enamel.For steel pipe's production enterprise, if utilize the blast furnace waste heat to build stove, hang porcelain for the steel pipe base material, will reduce cost greatly.
Ground-coat enamel powder or cover-coat enamel powder can be purchased existing silicate ground-coat enamel powder or cover-coat enamel powder on the market.Also can oneself prepare.When preparation ground-coat enamel or cover-coat enamel, add 3.5-4.0 kilogram clear water in per kilogram silicate ground-coat enamel powder or the cover-coat enamel powder, stir into pasty state.At normal temperatures, adding about 3.8 kilograms of clear water in per kilogram ground-coat enamel powder or the cover-coat enamel powder is advisable.
It is the 16-600 millimeter that the present invention is suitable for producing internal diameter, the porcelain enamel steel tube of length 1-6 rice.Glassed Steel pipe fittings such as supporting elbow, threeway, four-way are all according to the inventive method production.
When going into the enamel furnace sintering, the time of high temperature sintering decides according to the thickness of steel pipe, and when steel pipe walls was thin, the agglomerating time was slightly short, and when steel pipe walls was thicker, the agglomerating time was slightly longer.
The inventive method also is applicable to the production of enamel nodular graphite cast iron.Can adopt GB socket joint flexible ball graphite cast iron pipe is base material, and producing internal diameter is the 100-1000 millimeter, the enamel nodular graphite cast iron of length 3-6 rice.Enamel nodular graphite cast iron spares such as supporting elbow, threeway, four-way are all according to the inventive method production.
Claims (3)
1, a kind of production method of porcelain enamel steel tube is characterized in that:
(1) cleans: steel pipe concentration was soaked 10-15 minute for the 30%-33% hydrochloric acid soln; Again with flushing with clean water clean back oven dry;
(2) preparation ground-coat enamel cover-coat enamel: stir into pasty state with adding proper amount of clear water in silicate ground-coat enamel powder or the cover-coat enamel powder; The per-cent of the add-on of clear water and ground-coat enamel powder or cover-coat enamel grain weight amount is: 3.5-4.0:1.
(3) go up ground-coat enamel: the inside and outside wall that the pasty state ground-coat enamel evenly is sprayed on steel pipe with spray gun;
(4) oven drying at low temperature: advance stoving oven, after the oven dry in about 10 minutes of 150 ℃ of-200 ℃ of low temperature, come out of the stove;
(5) go up cover-coat enamel: the inside and outside wall that the pasty state cover-coat enamel evenly is sprayed on steel pipe with spray gun;
(6) sintering: push in the enamel furnace, come out of the stove after high temperature sintering 8-15 minute through 900 ℃-1000 ℃;
(7) cooling: naturally cooling.
2, the production method of porcelain enamel steel tube as claimed in claim 1 is characterized in that the silicate ground-coat enamel according to the prescription of weight percent meter is: borax: 25-30%, quartz: 20-25%, feldspar: 20-25%, fluorite: 5-10%, pure cash: 1-2%; Weisspiessglanz: 7-15%; Preparing the back ground-coat enamel is powdery, and weight adds up to 100%.
3, the production method of porcelain enamel steel tube as claimed in claim 1 is characterized in that the silicate cover-coat enamel according to the prescription of weight percent meter is: borax: 35-40%, quartz: 25-30%, feldspar: 10-15%, water glass 5-10%, SODIUMNITRATE: 5-10%; Titanium oxide: 10-18%; Preparing the back cover-coat enamel is powdery, and weight adds up to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100797969A CN101418448A (en) | 2008-11-12 | 2008-11-12 | A kind of production method of porcelain enamel steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100797969A CN101418448A (en) | 2008-11-12 | 2008-11-12 | A kind of production method of porcelain enamel steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101418448A true CN101418448A (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100797969A Pending CN101418448A (en) | 2008-11-12 | 2008-11-12 | A kind of production method of porcelain enamel steel tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN101418448A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
| CN103693850A (en) * | 2013-12-09 | 2014-04-02 | 常熟市永达化工设备厂 | Preparation technology of nanocrystalline enamel |
| CN105384342A (en) * | 2015-11-09 | 2016-03-09 | 山东锋坤搪瓷护栏有限公司 | Plastic-enamel-steel composite tube |
| WO2017148388A1 (en) * | 2016-03-04 | 2017-09-08 | 浙江大学 | Low porosity anti-corrosion coating for steel reinforcement and coating method |
-
2008
- 2008-11-12 CN CNA2008100797969A patent/CN101418448A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
| CN103693850A (en) * | 2013-12-09 | 2014-04-02 | 常熟市永达化工设备厂 | Preparation technology of nanocrystalline enamel |
| CN103693850B (en) * | 2013-12-09 | 2015-12-30 | 常熟市永达化工设备厂 | The technology of preparing of nano microcrystalline enamel |
| CN105384342A (en) * | 2015-11-09 | 2016-03-09 | 山东锋坤搪瓷护栏有限公司 | Plastic-enamel-steel composite tube |
| WO2017148388A1 (en) * | 2016-03-04 | 2017-09-08 | 浙江大学 | Low porosity anti-corrosion coating for steel reinforcement and coating method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090429 |