ANSI ASTM F1182-2007 Standard Specification for Anodes Sacrificial Zinc Alloy《阳极镀锌合金规范》.pdf

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1、Designation: F1182 07 (Reapproved 2013) An American National StandardStandard Specification forAnodes, Sacrificial Zinc Alloy1This standard is issued under the fixed designation F1182; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision

2、, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the requirements for zincanodes in the form of slabs, plates, discs, and rods

3、for corrosionprotection (cathodic protection) of metals and alloys.1.2 The anodes are primarily intended to reduce corrosionof surface ship and submarine hulls, steel and aluminumequipment and structures, sea chests, sonar domes, and theseawater side of condensers and other heat exchangers.1.3 The v

4、alues stated in inch-pound units are to be regardedas standard. The metric (SI) units, given in parentheses, are forinformation purposes only and may be approximate.1.4 This standard does not purport to address the safetyconcerns associated with its use. It is the responsibility of theuser of this s

5、tandard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 Order of PrecedenceIn the event of a conflict betweenthe text of this specification and the references cited herein, thetext of this specific

6、ation shall take precedence.2.2 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelB21/B21M Specification for Naval Brass Rod, Bar, andShapesB103/B103M Specification for Phosphor Bronze Plate,Sheet, Strip, and Rolled BarD3951 Practice for Commercial PackagingE290 Test Methods for Bend

7、 Testing of Material for Ductil-ityE536 Test Methods for Chemical Analysis of Zinc and ZincAlloys2.3 Military Standards:3MIL-STD-129 Marking for Shipment and StorageMIL-STD-1186 Cushioning,Anchoring, Bracing, Blocking,and Waterproofing; With Appropriate Test Methods2.4 Military Specification:3MIL-P-

8、15011 Pallets Material Handling, Wood PostConstruction, 4-Way Entry2.5 Federal Specifications:3PPP-B-601 Boxes, Wood, Cleated PlywoodPPP-B-621 Boxes, Wood, Nailed and Lock-CornerPPP-B-636 Boxes, Shipping, Fiberboard2.6 American National Standards Institute Standards:ANSI/ASME B1.20.1 Pipe Threads, G

9、eneral Purpose (Inch)ANSI/ASQ Z1.4 Sampling Procedures and Tables for In-spection by Attributes3. Classification3.1 The anodes shall be of the following classes and types,as specified (see 4.1.2):3.1.1 Class 1Cast-in cores:3.1.1.1 Type ZHSZinc, hull slab, steel straps, 23 and 42-lb(10 and 19-kg) siz

10、es.3.1.1.2 Type ZHBZinc, hull slab, brass straps, 23-lb (10-kg) size.3.1.1.3 Type ZHCZinc, hull slab, core strap, 23 and 42-lb(10 and 19-kg) sizes.3.1.1.4 Type ZSSZinc, submarine slab, steel strap, 12 and24-lb (5 and 11-kg) sizes.3.1.1.5 Type ZTSZinc, teardrop shape, steel strap, 5-lb(2-kg) size.3.1

11、.1.6 Type ZEPZinc, heat exchanger or fair water disc,(pipe core or pipe bushing core):Style A square slab, 9-lb (4-kg) sizeStyle B circular slab, various sizesStyle C semicircular slab, 23-lb (10-kg) size3.1.1.7 Type ZBPZinc, bar, pipe core, 8-lb (4-kg) size.3.1.1.8 Type ZDMZinc, segmented disc, mac

12、hine formedinterlocking core, various sizes.3.1.2 Class 2Plain, no cores;1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.07 onGeneral Requirements.Current edition approved Oct. 1, 2013. Published O

13、ctober 2013. Originallyapproved in 1988. Last previous edition approved in 2007 as F1182 07. DOI:10.1520/F1182-07R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to

14、 the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19

15、428-2959. United States13.1.2.1 Type ZRNZinc, rod, no core, extruded, drawn orrolled.3.1.2.2 Type ZPNZinc, plate, no core, rolled.3.2 The letter designations of types of anodes have thefollowing meanings:3.2.1 The first letter designates anode metal:Z zinc3.2.2 The second letter designates the shape

16、 or general use:H hull slabS submarine slabT teardrop shapeE heat exchanger slabR rod, cylindricalP plateB bar, squareD disc, segmented3.2.3 The third letter designates the core:B brass strapsS steel strapsC core strapP pipe coreM machine formed interlocking coreN no core4. Ordering Information4.1 O

17、rders for material under this specification shall includethe following information:4.1.1 ASTM designation and year of issue,4.1.2 Class and type (see 3.1),4.1.3 Style of Type ZEP, if required (see 3.1.1.6 and Fig. 1),4.1.4 Diameter of Type ZEP, Style B, if required (see Fig.1),4.1.5 For Type ZDM, wh

18、ether straight or tapered threadsupport plug head is required (see section 5.1.4.2,)FIG. 1 ZEP Heat Exchanger SlabF1182 07 (2013)24.1.6 Diameter of Type ZDM, if required (see Fig. 2),4.1.7 Length, width, and thickness of Type ZHS, if required(see Fig. 3 and Fig. 4),4.1.8 Whether Type ZHC is for surf

19、ace ship or submarineusage, if required (see Figs. 5-8),4.1.9 Pipe or bolt diameter of Type ZRN, if required (seeFig. 9),4.1.10 Thickness of Type ZPN, if required (see 9.2.1),4.1.11 Quantity required (see 4.2),4.1.12 Quality assurance certification, if required (see 15.1),and4.1.13 Optional requirem

20、ents, if any (see S1 through S3).4.2 The order for anodes should specify the exact number ofanodes required (see 4.1.11). Acquisition of anodes by weightis not practical and is not recommended.4.3 When material is ordered in the form of slabs, bars,discs, or rods, these terms refer merely to the gen

21、eral form anddimensions of the material and do not have any technicalsignificance as to the methods of manufacture.5. Materials and Manufacture5.1 Materials:5.1.1 Types ZHS, ZHC, ZSS, and ZTS anodes shall havesteel strap cores in accordance with Specification A36/A36M.The steel shall be coated with

22、zinc, either by the hot-dip orelectrodeposition method, to a minimum of 0.0005 in. (0.013mm).5.1.2 Type ZHB anodes shall have brass strap cores inaccordance with alloy 482 of Specification B21/B21M orphosphor bronze straps in accordance with C51000 of Speci-fication B103/B103M. The brass or bronze s

23、traps shall becoated with zinc to a minimum thickness of 0.0005 in. (0.013mm). Lack of adhesion of the zinc coating at bend or absenceof zinc coating at cut edges will not be cause for rejection offabricated anodes. Cracks in the base metal shall be cause forrejection.5.1.2.1 The maximum copper cont

24、ent in the zinc, as speci-fied in Table 1, may be increased to 0.020 % for Type ZHBanodes.NOTE 1All dimensions are in inches.NOTE 21 in. = 25.4 mm.FIG. 2 Zinc, Segmented Disc, Machine-Formed Interlocking Core, Type ZDMF1182 07 (2013)35.1.3 Types ZEP and ZBP anodes shall have core insertsmade from zi

25、nc coated steel pipe or pipe couplings. Theminimum thickness of the coating shall be as specified in 5.1.1.5.1.4 Type ZDM anodes shall have machine formed inter-locking cores in accordance with commercial grade mild orleaded steel. The cores shall be flash coated with zinc, tin, oraluminum before as

26、sembly within the anodes.5.1.4.1 This core insert consists of an integral piece havinga threaded male stud at one end and a tapped hole at the otherend. Provision has been made to achieve self-locking charac-teristics to interlocking threaded assemblies of multiple seg-mented anode discs by interfer

27、ence fit of bottom male threadsinto a taper tapped hole.5.2 Manufacture:5.2.1 All anodes covered under this specification shall bemanufactured by any process suitable to the contracting agencyprovided they meet the mechanical properties and other re-quirements of this specification.5.2.2 For Types Z

28、HS, ZHB, ZHC, ZSS, and ZTS anodes,open or closed molds may be used. Cores and straps shall bepositioned so that they are embedded14,+18,or116 in. (6,+3, or 2 mm) as shown on Figs. 3-5, Fig. 7, and Fig. 10 andFig. 11, which may be measured from either surface of theanode as applicable, except Fig. 11

29、 (bottom), which shall beembedded38,+18,or116 in. (10, +3, or 2 mm).5.2.2.1 Type ZHC anodes designated as shown on Fig. 6 andFig. 8 and are intended for use with rubber washers forsubmarine application. The countersink for the rubber washermay be cast or machined. The anode shall be manufactured sot

30、hat the countersink is centered on the core hole and the rubberwasher fits snugly between the hull and anode core to preventanode movement or vibration.5.2.2.2 Type ZSS, ZHS, ZHB, and ZTS anodes may bemounted by welding or by fasteners. Those intended to beattached by fasteners shall indicate the re

31、quirements formounting holes in the strap. The mounting hole shall becounterbored on the structure side of the strap.5.2.3 The pipe core inserts for Type ZEP anodes shallconform to 5.1.3. The position of the pipe core insert shall notvary more than 618 in. (3 mm) from the center as shown onFig. 1.5.

32、2.4 The position of the pipe core insert for Type ZBPanodes specified in 5.1.3 shall not vary more than 614 in. (6mm) from the center as shown on Fig. 12.NOTE 1Anode may be cast with strap in the up or down position. Alldimensions (inches) refer to the wider and longer edges of the anodes.NOTE 2Tole

33、rance 618 in.NOTE 31 in. = 25.4 mm.NOTE 4Minimum weight 21.5 lb (9.7 kg).FIG. 3 Zinc Hull Slab (Steel Straps), Type ZHS-23; Zinc Hull Slab(Brass Straps), Type ZHBNOTE 1Anode may be cast with strap in the up or down position. Alldimensions (inches) refer to the wider and longer edges of the anode.NOT

34、E 2Tolerance 618 in.NOTE 31 in. = 25.4 mm.NOTE 4Minimum weight 41 lb (18.6 kg).FIG. 4 Zinc Hull Slab (Steel Straps), Type ZHS-42F1182 07 (2013)45.2.5 Metallic bonding or an interference fit of the core intoType ZDM anode (see Fig. 2) shall be required so that an axialforce applied from the stud end

35、to remove the core insert is aminimum of 750 lb (340 kg) (see 13.1.3).5.2.6 The machine formed core insert specified in 5.1.4shall be manufactured in accordance with details and toler-ances shown for Piece 2 on Fig. 1 and ANSI/ASME B1.20.1.5.2.6.1 The pieces shown on Fig. 1 shall screw together very

36、snugly by hand tightening or by using simple hand tools suchas pliers or pipe wrenches.6. Chemical Composition6.1 The anodes shall conform to the composition specifiedin Table 1. Total of elemental constituents not specified inTable 1 shall not exceed 0.10 %. Metallic elements notspecified in Table

37、1 are considered contaminants.7. Mechanical Properties7.1 When tested in accordance with 13.2, Types ZRN rodsand ZPN plates shall not fracture or show signs of cracking.7.2 When tested in accordance with 13.2.1, ZRN anodesshall have a minimum torsional shear strength of 12 000 psi(83 MPa).8. Other R

38、equirements8.1 When tested in accordance with 13.1.1 or 13.1.2, TypesZHS, ZHB, ZHC, ZSS, ZTS, ZEP, and ZBPanodes shall obtaina sound metallurgical bond between the zinc and core for atleast 30 % of the total surface area of each core in contact withthe anode.8.2 During the manufacturing process, cer

39、tain toxic com-pounds (such as zinc phosphide) may become by-products.Caution should be taken in disposal of process wastewater toensure that the composition of the water meets with local, state,and federal regulations.9. Dimensions, Mass, and Permissible Variations9.1 Types ZHS, ZHB, ZHC, ZTS, ZSS,

40、 ZEP, ZBP, ZDM,and ZRN anodes shall be in accordance with the dimensionsshown in Figs. 1-11, inclusive.9.2 Type ZPN anode shall be 48 in. (1220 mm) in length by24 in. (610 cm) in width.9.2.1 The thickness shall be either12 or 1 in. (13 or 25 mm)as specified (see 4.1.10).9.3 Types ZSS-12, ZSS-24, ZHC

41、-23, ZHC-42, ZHS-23, andZHS-42 shall have the following minimum weight require-ments:NOTE 1Anode may be cast with exposed face in the up or downposition. All dimensions are in inches.NOTE 2Tolerance 618 in.NOTE 31 in. = 25.4 mm.NOTE 4Minimum weight 21.5 lb (9.7 kg).FIG. 5 Zinc Hull Slab (Core Strap)

42、, Type ZHC-23NOTE 1Anode may be cast with exposed face in the up or downposition. All dimensions are in inches.NOTE 2Tolerance 618 in.NOTE 31 in. = 25.4 mm.NOTE 4Minimum weight 21.5 lb (9.7 kg).FIG. 6 Zinc Hull Slab (Core Strap), Type ZHC-23, Submarine Ap-plicationF1182 07 (2013)5Anode Weight, min,

43、lb (kg)ZSS-12 11.0 (5)ZSS-24, ZHC-23, ZHS-23 21.5 (10)ZHC-42 39.0 (18)ZHS-42 41.0 (19)9.3.1 The total weight of the specified type of anodereceived divided by the total number of anodes of that typeshall be equal to or greater than the minimum weight (11.0,21.5, 39.0, 41.0 lb (5, 10, 18, 19 kg) of t

44、he anode typespecified. If the weight is less than the minimum weight for thetype of anode specified, it shall be cause for rejection of theentire lot.9.4 The length and width of Types ZHS, ZHB, ZHC, ZTS,ZPN, ZSS, and ZBPanodes shall not vary more than 618 in. (3mm), measured at the widest surface o

45、f the tapered (for moldrelease) anode.9.5 The length of Type ZRN anodes will be permitted tohave a variation of 61 in. (25 mm) based on nominal lengthsof 3 and 6 ft (914 and 1829 mm).9.6 The diameter or width, whichever is the larger, of TypeZEP anodes shall not vary from the specified dimension bym

46、ore than 618 in. (3 mm).9.7 The diameter of Type ZDM anodes shall not vary morethan +0.025 in. (1 mm) or 0.005 in. (0.13 mm) from thespecified diameter.9.8 The diameter of the ZRN anode shall not vary more than6132 in. (1 mm) from the specified diameter.9.9 The thickness of Types ZHS, ZHB, ZHC, ZTS,

47、 ZPN,ZSS, ZEP, and ZBP anodes shall not vary more than 618 in. (3mm). Thickness measurements shall be taken at random 1 in.(25 mm) from any edge of the anode by means of a suitablecaliper avoiding any surface irregularities which would inter-fere with a representative measurement.9.10 The thickness

48、of Type ZDN anodes shall not vary morethan 6164 in. (0.4 mm).9.10.1 The cores of Type ZDM anodes shall be positionedaxially and concentrically in the zinc disc. Eccentricity greaterthan 0.005 in. (0.13 mm) will not be permitted.10. Workmanship, Finish, and Appearance10.1 The zinc anodes shall be fre

49、e of flash burrs, cracks,blow holes, pipes, and surface slag consistent with goodcommercial practice.10.1.1 For anodes less than 2 in. (50 mm) thick, whenmeasured with a straightedge placed diagonally across theopposite edges of the cast anode, the anode shall be free ofshrinkage cavities exceeding14 in. (6 mm) in depth. Anodes 2in. (50 mm) thick or more shall be free of shrinkage cavitiesexceeding38 in. (10 mm) in depth.10.1.1.1 For Type ZPN anodes, shrinkage cavities shall bemeasured over a 12- by 12-in. (305- by 305-