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CN201372311Y - 复合牺牲阳极结构 - Google Patents

复合牺牲阳极结构 Download PDF

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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
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China
Prior art keywords
anode
zinc
magnesium
sacrificial anode
sacrificial
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Expired - Fee Related
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CN200920084261U
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English (en)
Inventor
赵应龙
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WUHAN HUANYU ANTICORROSION Co Ltd
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WUHAN HUANYU ANTICORROSION Co Ltd
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Priority to CN200920084261U priority Critical patent/CN201372311Y/zh
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

复合牺牲阳极结构，它由位于内层的锌阳极(1)和在位于锌阳极外层的镁阳极(2)组成，镁阳极(2)浇铸在锌阳极(1)外。它克服了现有镁牺牲阳极长期使用，则消耗大、费用高的缺点。及锌牺牲阳极输出电流小，寿命比较长，费用低，但驱动电位低的缺点。本实用新型复合牺牲阳极结构充分利用了镁阳极和锌阳极的特点，通过锌阳极来提供维持电流，使钢结构既得到了很好的保护，同时节省了时间，降低了成本。

Description

复合牺牲阳极结构
技术领域
本实用新型涉及一种复合牺牲阳极结构。
背景技术
当前市售牺牲阳极中，适宜用在土壤和淡水环境的有以下两种：镁合金牺牲阳极和锌合金牺牲阳极。两种阳极的性能见附表。
钢铁在阴极保护投入运行初期需要的极化电流大，达到保护电位后，维持正常保护电位的电流小。从附表中看出，镁牺牲阳极的开路电位高，在-1.48～1.56v之间，发生电量在0.88～1.11A.h/g，；而锌牺牲阳极的开路电位只有-1.03v，发生电量只有0.53A.h/g。
由于镁牺牲阳极比锌牺牲阳极驱动电位高，输出电流大，可使被保护的钢结构极化快，可迅速达到所需的保护电位，得到保护。若长期使用，则消耗大、费用高。而锌牺牲阳极输出电流小，寿命比较长，费用低。
发明内容
本实用新型的目的在于克服上述现有镁牺牲阳极和锌牺牲阳极的不足之处，而提供一种复合牺牲阳极结构。
本实用新型的目的是通过如下措施来达到的：复合牺牲阳极结构，其特征在于它由位于内层的锌阳极和在位于锌阳极外层的镁阳极组成。
在上述技术方案中，所述镁阳极浇铸在锌阳极外。
在上述技术方案中，所述镁阳极的厚度为5-20mm。
本实用新型复合牺牲阳极结构充分利用了镁阳极和锌阳极的特点，通过锌阳极来提供维持电流，使钢结构既得到了很好的保护，同时节省了时间，降低了成本。
附图说明
图1为本实用新型复合牺牲阳极结构的结构示意图。
具体实施方式
下面结合附图详细说明本实用新型的实施情况，但它们并不构成对本实用新型的限定，仅作举例而已，同时通过说明本实用新型的优点将变得更加清楚和容易理解。
参阅附图可知：本实用新型复合牺牲阳极结构，其特征在于它由位于内层的锌阳极1和在位于锌阳极外层的镁阳极2组成，镁阳极2浇铸在锌阳极1外(附图中为方形结构，也可采用其它结构)。镁阳极2的厚度3为5-20mm(具体厚度可根需要设定)。
制造时可先制造出锌阳极，将造好的锌阳极做复合牺牲阳极结构的芯，在外面浇铸一层镁合金(镁阳极)，厚度视需要，一般5～20mm。这就做成了复合镁锌牺牲阳极。

Claims (3)

1、复合牺牲阳极结构，其特征在于它由位于内层的锌阳极(1)和在位于锌阳极外层的镁阳极(2)组成。
2、根据权利要求1所述的复合牺牲阳极结构，其特征在于镁阳极(2)浇铸在锌阳极(1)外。
3、根据权利要求1或2所述的复合牺牲阳极结构，其特征在于镁阳极(2)的厚度(3)为5-20mm。
CN200920084261U 2009-03-20 2009-03-20 复合牺牲阳极结构 Expired - Fee Related CN201372311Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920084261U CN201372311Y (zh) 2009-03-20 2009-03-20 复合牺牲阳极结构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920084261U CN201372311Y (zh) 2009-03-20 2009-03-20 复合牺牲阳极结构

Publications (1)

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CN201372311Y true CN201372311Y (zh) 2009-12-30

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Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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Granted publication date: 20091230

Termination date: 20140320