CN104455774A - High-temperature-resisting metal composite pipe - Google Patents
High-temperature-resisting metal composite pipe Download PDFInfo
- Publication number
- CN104455774A CN104455774A CN201410711499.7A CN201410711499A CN104455774A CN 104455774 A CN104455774 A CN 104455774A CN 201410711499 A CN201410711499 A CN 201410711499A CN 104455774 A CN104455774 A CN 104455774A
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- China
- Prior art keywords
- composite pipe
- metal composite
- resistant
- elevated temperatures
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
- B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
- B32B19/041—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material of metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a high-temperature-resisting metal composite pipe. The high-temperature-resisting metal composite pipe is formed by combining a coating layer made of galvanized steel, a basic layer made of a heat-resisting material and a compound layer made from nickel base alloy, wherein the galvanized steel contains ferric oxide and zinc chloride, the heat-resisting material contains quartz sand and magnesite, the nickel base alloy contains copper, chromium and molybdenum, the galvanized steel accounts for 34%-39% of the total weight of the high-temperature-resisting metal composite pipe, the heat-resisting material accounts for 22%-26% of the total weight of the high-temperature-resisting metal composite pipe, and the nickel base alloy accounts for 336%-42% of the total weight of the high-temperature-resisting metal composite pipe. The high-temperature-resisting metal composite pipe has the advantages of being high in strength, long in service life and maintenance and replacement period and low in price and having corrosion-resisting and high-temperature-resisting performance.
Description
Technical field
The present invention relates to a kind of resistant to elevated temperatures metal composite pipe.
Background technique
Foreign applications aluminium-plastic composite pipe is in increase, but its total amount and ratio are all not very big.Relatively other several plastic tubes, aluminium-plastic composite pipe is newer, because there is its speciality, the growth rate of foreign applications higher (it is introduced U.S. 1992-1995 annual increasing rate more than 25%, German 1993-1995 annual increasing rate 23%).But the total amount of application is not also very large.This type of tubing, because it contains aluminium lamination, can increase burst strength, blocking oxygen, CO2 etc. and avoid threatening the corrosion of aqueduct equipment, thermal conductivity is good and reduce focus and concentrate, antistatic and shielding is got well and have certain fire retardation, therefore easily accept by masses.And due to its connection pipe fitting be copper, U.S. rich plastic alloy pipe fitting, stainless steel thread seal pipe fitting, connects more for convenience, does not need special tool(s), with to there is cast-iron pipe joint in a large number now close, thus shows the advantage that it is certain.Its parts of plastics of second, third kind adopts crosslinked polyethylene (PEX), and intermolecular structure is more stable, more firm than the first, is more suitable for building water supply, heating system.
Can see that these the 5 kinds plastic tubes that can be applied to indoor confession hot and cold water all respectively have its merits and demerits by above contrast, the unique unique advantage of aluminium-plastic composite pipe is the infiltration that can intercept gas, this is useful when being applied to the water heating system of closed circulation (heating system as ground paving hot-water line), because the oxide etch that can prevent the infiltration of oxygen from avoiding in system.Other plastic tubes also can make up the shortcoming of its blocking oxygen difference with several method, so can be applied to the water heating system of closed circulation equally.Except above-mentioned 5 kinds of plastic tubes, outer line plastic-steel tube and pipe fitting and plastic-coated steel and pipe fitting, mould multiple copper pipe, plastic lining aluminium pipe etc. also can be applied to the indoor field for hot and cold water.These linings are moulded or the metal tube of plastic-coated also respectively has its own unique merits and demerits.Such as lining is moulded or plastic-coated steel take Coating Steel Pipe as matrix, its mechanical property reliable the most easily by users to trust.So, at present domestic and international in the field of indoor for hot and cold water above-mentioned various tubing be in fact all used, and all constantly to improve and developing.Aluminium-plastic composite pipe develops very fast at home, can expand market share accordingly from now on, but can not infer that aluminium-plastic composite pipe will become the main flow of indoor water pipe accordingly.Various tubing contention can be predicted and divide the situation accounting for indoor water pipe market by long-term existence.In the field of indoor for cool and hot water pipe, above-mentioned several tubing is domestic all has manufacturing enterprise now and sets up production line, and goes into operation.
The actual ratio of various plastic tube is applied according to interrelated data introduction abroad in indoor water-supply pipe (comprising cold water hot water) field, European indoor Pipe installing length in 1994 is 12.69 hundred million m, wherein metal tube accounts for 67%, plastic tube accounts for 33%, 16.05 hundred million m are risen to length of installation in 1997, and wherein metal accounts for 64%, plastic tube accounts for 36%(5.77 hundred million m).Following each table gives applicable cases.
Summary of the invention
The invention provides one and have high strength, corrosion-resistant, resistance to high temperature, long service life, the maintain and replace cycle is long, the resistant to elevated temperatures metal composite pipe of the low advantage of price.
Technological scheme of the present invention is: a kind of resistant to elevated temperatures metal composite pipe, described resistant to elevated temperatures metal composite pipe comprises the galvanized steel of coating, the heat-resistant material of basic unit and the nickel-base alloy of cladding combine, described galvanized steel comprises iron oxide and zinc chloride, described heat-resistant material comprises silica sand and magnesite, described nickel-base alloy comprises copper, chromium and molybdenum, described galvanized steel accounts for the 34%-39% of the overall component of resistant to elevated temperatures metal composite pipe, described heat-resistant material accounts for the 22%-26% of the overall component of resistant to elevated temperatures metal composite pipe, described nickel-base alloy accounts for the 36%-42% of the overall component of resistant to elevated temperatures metal composite pipe.
In a preferred embodiment of the present invention, described silica sand comprises silicate and silica.
In a preferred embodiment of the present invention, described galvanized steel accounts for 36% of the overall component of resistant to elevated temperatures metal composite pipe, described heat-resistant material accounts for 23% of the overall component of resistant to elevated temperatures metal composite pipe, and described nickel-base alloy accounts for 41% of the overall component of resistant to elevated temperatures metal composite pipe.
The resistant to elevated temperatures metal composite pipe of one of the present invention, have high strength, corrosion-resistant, resistance to high temperature, long service life, the maintain and replace cycle is long, the advantage that price is low.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Wherein, the nickel-base alloy that described resistant to elevated temperatures metal composite pipe comprises the galvanized steel of coating, the heat-resistant material of basic unit and cladding combines, described galvanized steel comprises iron oxide and zinc chloride, described heat-resistant material comprises silica sand and magnesite, described nickel-base alloy comprises copper, chromium and molybdenum, described galvanized steel accounts for the 34%-39% of the overall component of resistant to elevated temperatures metal composite pipe, described heat-resistant material accounts for the 22%-26% of the overall component of resistant to elevated temperatures metal composite pipe, and described nickel-base alloy accounts for the 36%-42% of the overall component of resistant to elevated temperatures metal composite pipe.Described silica sand comprises silicate and silica.
Further illustrate, described galvanized steel accounts for 36% of the overall component of resistant to elevated temperatures metal composite pipe, and described heat-resistant material accounts for 23% of the overall component of resistant to elevated temperatures metal composite pipe, and described nickel-base alloy accounts for 41% of the overall component of resistant to elevated temperatures metal composite pipe.
Further illustrating, described nickel-base alloy has good combination property, can resistance to various acid etching and stress corrosion.Abros has austenite structure more.Under solid solution and ageing treatment state, the austenitic matrix of alloy and crystal boundary also have the carbonitride of intermetallic phase and metal to exist, various corrosion resistant alloy by compositional classification and characteristic as follows: Ni-Cu alloy corrosion resistance in Reductant is better than nickel, and corrosion resistance is better than copper in Oxidant, it, under the condition of anaerobic and oxygenant, is the best material of high temperature resistant fluorine gas, hydrogen fluoride and hydrofluoric acid.
Ni-Cr alloy i.e. Refractoloy; Mainly use under Oxidant condition.The corrosion of resistance to high temperature oxidation and the gas such as sulfur-bearing, vanadium, its corrosion resistance strengthens with the increase of chromium content.This kind of alloy also has the ability of good resistance to hydroxide corrosion and anticorrosion stress-resistant.Ni-Mo alloy mainly uses under the condition of Reductant corrosion.It is best a kind of alloy of hydrochloric acid corrosion resistant, but when aerobic and oxygenant exist, corrosion resistance can significantly decline.In this kind of alloy moist chlorine in high-temperature fluorination hydrogen, in containing the hydrochloric acid of oxygen and oxygenant, hydrofluoric acid solution and at room temperature, corrosion resistance is good.
Ni-Cr-Mo-Cu alloy has not only resistance to nitric acid but also the ability of sulfuric acid corrosion resistant, in some oxidation-reducibility mixed acid, also have good corrosion resistance.
Further illustrating, galvanized steel makes molten metal and iron-based precursor reactant and produces alloy-layer, thus both matrix and coating are combined.Hot galvanizing first steel pipe is carried out pickling, in order to remove the iron oxide of steel tube surface, after pickling, by cleaning in ammonium chloride or solder(ing)acid or ammonium chloride and zinc chloride mixed aqueous solution groove, then sends in hot-dip tank.It is even that hot galvanizing has coating, strong adhesion, the advantages such as long service life.There is complicated physics, chemical reaction in the plating solution of hot galvanized steel pipe matrix and melting, forms corrosion resistant hard-packed zinc one iron alloy layer.Alloy-layer and pure zinc layer, steel pipe matrix combine together.Therefore its corrosion resistance is strong.The invention provides a kind of resistant to elevated temperatures metal composite pipe, have high strength, corrosion-resistant, resistance to high temperature, long service life, the maintain and replace cycle is long, the advantage that price is low.
The specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention, and the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (3)
1. a resistant to elevated temperatures metal composite pipe, it is characterized in that: described resistant to elevated temperatures metal composite pipe comprises the galvanized steel of coating, the heat-resistant material of basic unit and the nickel-base alloy of cladding combine, described galvanized steel comprises iron oxide and zinc chloride, described heat-resistant material comprises silica sand and magnesite, described nickel-base alloy comprises copper, chromium and molybdenum, described galvanized steel accounts for the 34%-39% of the overall component of resistant to elevated temperatures metal composite pipe, described heat-resistant material accounts for the 22%-26% of the overall component of resistant to elevated temperatures metal composite pipe, described nickel-base alloy accounts for the 36%-42% of the overall component of resistant to elevated temperatures metal composite pipe.
2. resistant to elevated temperatures metal composite pipe according to claim 1, is characterized in that: described silica sand comprises silicate and silica.
3. resistant to elevated temperatures metal composite pipe according to claim 1, it is characterized in that: described galvanized steel accounts for 36% of the overall component of resistant to elevated temperatures metal composite pipe, described heat-resistant material accounts for 23% of the overall component of resistant to elevated temperatures metal composite pipe, and described nickel-base alloy accounts for 41% of the overall component of resistant to elevated temperatures metal composite pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711499.7A CN104455774A (en) | 2014-12-01 | 2014-12-01 | High-temperature-resisting metal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711499.7A CN104455774A (en) | 2014-12-01 | 2014-12-01 | High-temperature-resisting metal composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455774A true CN104455774A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711499.7A Pending CN104455774A (en) | 2014-12-01 | 2014-12-01 | High-temperature-resisting metal composite pipe |
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| CN (1) | CN104455774A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002494A (en) * | 2015-06-29 | 2015-10-28 | 常州江南冶金科技有限公司 | Silicon-aluminum alloy composite pipeline |
| CN105937663A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for geological drilling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050166987A1 (en) * | 2004-02-02 | 2005-08-04 | Dai-Ichi High Frequency Co., Ltd. | Clad pipe |
| CN101514768A (en) * | 2008-12-26 | 2009-08-26 | 上海佑利积水管业有限公司 | Novel bimetal compound pipeline with high pressure resistance and high corrosion resistance |
| CN202884378U (en) * | 2012-09-06 | 2013-04-17 | 江苏赛特钢结构有限公司 | Steel composite anti-corrosion pipe |
| CN103574221A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Machinery expanding lining anticorrosion alloy composite tube and manufacturing method thereof |
| CN104097363A (en) * | 2014-07-31 | 2014-10-15 | 江苏爵格工业设备有限公司 | Novel antiknock fireproof plate and preparation method thereof |
-
2014
- 2014-12-01 CN CN201410711499.7A patent/CN104455774A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050166987A1 (en) * | 2004-02-02 | 2005-08-04 | Dai-Ichi High Frequency Co., Ltd. | Clad pipe |
| CN101514768A (en) * | 2008-12-26 | 2009-08-26 | 上海佑利积水管业有限公司 | Novel bimetal compound pipeline with high pressure resistance and high corrosion resistance |
| CN202884378U (en) * | 2012-09-06 | 2013-04-17 | 江苏赛特钢结构有限公司 | Steel composite anti-corrosion pipe |
| CN103574221A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Machinery expanding lining anticorrosion alloy composite tube and manufacturing method thereof |
| CN104097363A (en) * | 2014-07-31 | 2014-10-15 | 江苏爵格工业设备有限公司 | Novel antiknock fireproof plate and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002494A (en) * | 2015-06-29 | 2015-10-28 | 常州江南冶金科技有限公司 | Silicon-aluminum alloy composite pipeline |
| CN105002494B (en) * | 2015-06-29 | 2017-11-24 | 常州江南冶金科技有限公司 | Silico-aluminum composite material conduit |
| CN105937663A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for geological drilling |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |