CN1221861A - Colour composite tube - Google Patents
Colour composite tube Download PDFInfo
- Publication number
- CN1221861A CN1221861A CN 98111645 CN98111645A CN1221861A CN 1221861 A CN1221861 A CN 1221861A CN 98111645 CN98111645 CN 98111645 CN 98111645 A CN98111645 A CN 98111645A CN 1221861 A CN1221861 A CN 1221861A
- Authority
- CN
- China
- Prior art keywords
- colloid
- layer
- colour
- pipe
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A colour compound pipe for delivering material is composed of metallic pipe, colour colloid layer and plastic layer. It is made up by coating colour colloid layer and then plastic layer on the surface of metallic pipe. It advantage is that the thickness uniformity of colour colloid layer can be easily examined, ensuring high quality of the pipe.
Description
The present invention relates to the pipe of conveying material, specifically a kind of colloid layer is colored composite pipe.
In the composite pipe production process, need be the combine fastness of raising plastic layer at metal tube surface-coated plastic layer with metal tube, before being coated with plastics, should coat colloid on the metal tube surface earlier, otherwise, because plastics and intermetallic do not have adhesion, make plastics be easy to throw off from the metal surface.Therefore, the uniformity that applies the colloid thickness of preceding metal surface and colloid layer directly has influence on the quality of composite pipe.
Used colloid all is colourless at present, because the requirement of food sanitation, the plastic layer that is coated in metal pipe internal surface also must be colourless, so just colloid and plastics can't be distinguished, thereby can't judge the even situation of colloid layer from the section of composite pipe, this brings very big difficulty for the work for inspection of production unit, at present, almost have no way of doing it, this situation provides opportunity for again the unit that produces counterfeit and shoddy goods, because the user can't from the composite pipe section that buys differentiate went up glue or do not go up glue, thereby some unit just simply not gluing in process of production, had a strong impact on the quality of product, caused irremediable loss to the user.
The objective of the invention is to seek a kind of uniformity of being convenient to the diagnostic test colloid layer, to improve the colour composite tube of composite pipe quality.
The method that realizes above-mentioned purpose is that internal surface at metal tube is or/and outer surface is coated with last layer color adhesive body layer earlier, coating plastic layer on this colour colloid layer again, used color should be nontoxic, can not influence the quality of plastic layer again, usually can select for use can with the nontoxic color masterbatch of colloid congruent melting, used colloid can be the modified poly ethylene hot melt adhesive, and used plastics can be high density polyethylene (HDPE)s.
After using colored colloid of the present invention, the user can be easily from the composite pipe fracture differentiate this product whether before coating plastic on earlier colloid, judge the true and false of product with this, for manufacturer, except checking the quality of composite pipe with advanced instrument, operator and inspector also can with the naked eye in time judge the even situation of thickness of each layer colloid easily in process of production, so that in time adjust production technology, guarantee the quality of composite pipe.For an enterprise,,, help to establish the image of enterprise in addition, prevent other unit imitated our factory product as a kind of specific markers if adopt certain specific color always.In addition, used color masterbatch, colloid and raw materials for plastics production wide material sources, even can use after directly buying back to the shop, thereby more convenient.
Fig. 1 is a structural drawing of the present invention.
During production, internal surface at the metal tube 4 that is bundled into pipe is coated with the light blue colloid 5 of one deck earlier, apply the nontoxic modified poly ethylene plastic layer 6 of clear, colorless then immediately, outer surface at metal tube 4 applies faint yellow colloid 3 again, and on colloid 3, applying milky nontoxic modified polyvinyl plastics layer 2 immediately, 1 is that composite pipe, 7 is the inner chamber of composite pipe among the figure.
Used light blue colloid can by the modified poly ethylene hot melt adhesive of outsourcing and can with the nontoxic light blue color masterbatch of this hot melt adhesive congruent melting at normal temperatures and pressures mixed preparing form, used plastics are high density polyethylene (HDPE)s.
Claims (1)
1. colour composite tube comprises a metal tube and is coated in the colloid layer and the plastic layer on metal tube surface, it is characterized in that being coated with plastic layer at the internal surface of metal tube again on colored colloid or/and outer surface is coated with the colored colloid of one deck earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111645 CN1221861A (en) | 1998-12-31 | 1998-12-31 | Colour composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111645 CN1221861A (en) | 1998-12-31 | 1998-12-31 | Colour composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1221861A true CN1221861A (en) | 1999-07-07 |
Family
ID=5221610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111645 Pending CN1221861A (en) | 1998-12-31 | 1998-12-31 | Colour composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221861A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512080A (en) * | 2017-12-20 | 2020-08-07 | 三菱日立电力系统株式会社 | Spray pipe, desulfurization device provided with same, and method for inspecting desulfurization device |
-
1998
- 1998-12-31 CN CN 98111645 patent/CN1221861A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512080A (en) * | 2017-12-20 | 2020-08-07 | 三菱日立电力系统株式会社 | Spray pipe, desulfurization device provided with same, and method for inspecting desulfurization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |