CN201372311Y - Composite sacrificial anode structure - Google Patents
Composite sacrificial anode structure Download PDFInfo
- Publication number
- CN201372311Y CN201372311Y CN200920084261U CN200920084261U CN201372311Y CN 201372311 Y CN201372311 Y CN 201372311Y CN 200920084261 U CN200920084261 U CN 200920084261U CN 200920084261 U CN200920084261 U CN 200920084261U CN 201372311 Y CN201372311 Y CN 201372311Y
- Authority
- CN
- China
- Prior art keywords
- anode
- zinc
- magnesium
- sacrificial anode
- sacrificial
- 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.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/10—Electrodes characterised by the structure
Abstract
A composite sacrificial anode structure consists of a zinc anode (1) at the internal layer and a magnesium anode (2) arranged on the external layer of the zinc anode; and the magnesium anode (2) is cast outside the zinc anode (1). The composite sacrificial anode structure overcomes the shortages that the existing magnesium sacrificial anode has high consumption and high expense for long-term use, and the zinc sacrificial anode has low driving potential though has small output current, longer service life and low cost. The sacrificial anode structure fully utilizes the characteristic of the magnesium anode and zinc anode, provides constant current by the zinc anode, well protects the steel structure, saves time and reduces cost simultaneously.
Description
Technical field
The utility model relates to a kind of composite sacrificial anode structure.
Background technology
In the current commercially available sacrificial anode, following two kinds of having of soil and fresh water environment suits to be used in: sacrificial magnesium alloy anode and sacrificial zinc alloy anode.Two kinds of anodic performances are seen attached list.
The polarizing current that iron and steel needed at the galvanic protection initial stage of putting into operation is big, reach protection potential after, the electric current of keeping normal protection potential is little.Find out that from subordinate list the open circuit potential height of magnesium sacrificial anode between-1.48～1.56v, electric weight takes place at 0.88～1.11A.h/g; And the open circuit potential of zinc sacrificial anode has only-1.03v, electric weight takes place have only 0.53A.h/g.
Because magnesium sacrificial anode drives the current potential height than zinc sacrificial anode, outward current is big, can make protected steel construction polarization fast, can reach required protection potential rapidly, is protected.If life-time service, then consumption is big, expense is high.And zinc sacrificial anode outward current is little, and the life-span is long, and expense is low.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing magnesium sacrificial anode and zinc sacrificial anode, and a kind of composite sacrificial anode structure is provided.
The purpose of this utility model reaches by following measure: the composite sacrificial anode structure is characterized in that it forms by the zinc anode that is positioned at internal layer with being positioned at the outer field magnesium anode of zinc anode.
In technique scheme, described magnesium anode casts in outside the zinc anode.
In technique scheme, the thickness of described magnesium anode is 5-20mm.
The utility model composite sacrificial anode structure has made full use of the characteristics of magnesium anode and zinc anode, provides by zinc anode and keeps electric current, makes steel construction both obtain good protection, has saved the time simultaneously, has reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model composite sacrificial anode structure.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example, simultaneously by illustrating that advantage of the present utility model will become clear more and understands easily.
Consult accompanying drawing as can be known: the utility model composite sacrificial anode structure, it is characterized in that it forms by the zinc anode 1 that is positioned at internal layer with being positioned at the outer field magnesium anode 2 of zinc anode, magnesium anode 2 casts in zinc anode 1 outer (for square structure, also can adopt other structure in the accompanying drawing).The thickness 3 of magnesium anode 2 is 5-20mm (but concrete thickness root needs to set).
Can produce zinc anode earlier during manufacturing, the zinc anode of making is made the core of composite sacrificial anode structure, one deck magnesium alloy (magnesium anode) of casting outside, thickness optionally, general 5～20mm.This has just made compound magnesium zinc sacrificial anode.
Claims (3)
1, composite sacrificial anode structure is characterized in that it forms by the zinc anode that is positioned at internal layer (1) with being positioned at the outer field magnesium anode of zinc anode (2).
2, composite sacrificial anode structure according to claim 1 is characterized in that magnesium anode (2) casts in outside the zinc anode (1).
3, composite sacrificial anode structure according to claim 1 and 2, the thickness (3) that it is characterized in that magnesium anode (2) is 5-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920084261U CN201372311Y (en) | 2009-03-20 | 2009-03-20 | Composite sacrificial anode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920084261U CN201372311Y (en) | 2009-03-20 | 2009-03-20 | Composite sacrificial anode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201372311Y true CN201372311Y (en) | 2009-12-30 |
Family
ID=41498398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920084261U Expired - Fee Related CN201372311Y (en) | 2009-03-20 | 2009-03-20 | Composite sacrificial anode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201372311Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019863A1 (en) * | 2012-07-30 | 2014-02-06 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
| US9045834B2 (en) | 2011-11-11 | 2015-06-02 | Rolls-Royce Plc | Sacrificial anode |
| US10214819B2 (en) | 2012-07-30 | 2019-02-26 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
-
2009
- 2009-03-20 CN CN200920084261U patent/CN201372311Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9045834B2 (en) | 2011-11-11 | 2015-06-02 | Rolls-Royce Plc | Sacrificial anode |
| EP2592175A3 (en) * | 2011-11-11 | 2017-02-01 | Rolls-Royce plc | A sacrificial anode |
| WO2014019863A1 (en) * | 2012-07-30 | 2014-02-06 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
| US10214819B2 (en) | 2012-07-30 | 2019-02-26 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
| US10227698B2 (en) | 2012-07-30 | 2019-03-12 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
| US11519077B2 (en) | 2012-07-30 | 2022-12-06 | Construction Research & Technology Gmbh | Galvanic anode and method of corrosion protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20140320 |