1、Designation: F 765 93 (Reapproved 2006)An American National StandardStandard Specification forWildcats, Ship Anchor Chain1This standard is issued under the fixed designation F 765; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers
3、wildcats as used in windlassesto haul in and pay out anchor chain on board ships. Anassociated chain stopper is used to secure the chain while theship is anchored, or the anchor is housed.1.2 Wildcats are of the five whelp type for use with stud linkanchor chain conforming to the American Bureau of
4、ShippingGrades 1, 2, and 3. Wildcat dimensions are provided for chainsin integral18-in. (3-mm) steps, ranging in size from34 to 418in. (19 to 104 mm). Wildcat dimensions for chains in interme-diate116-in. (1.5-mm) steps are not provided, but wildcats inthese sizes are permitted within the scope of t
5、his specification.1.3 Wildcats are configured to pass detachable links ori-ented parallel or perpendicular to the wildcat shaft centerline.1.4 The values stated in inch-pound units are to be regardedas the standard. This specification is for use with anchor chainthat is measured in inch-pound units.
6、2. Referenced Documents2.1 ASTM Standards:2A 27/A 27M Specification for Steel Castings, Carbon, forGeneral ApplicationA 36/A 36M Specification for Carbon Structural SteelA 148/A 148M Specification for Steel Castings, HighStrength, for Structural PurposesE10 Test Method for Brinell Hardness of Metall
7、ic Materi-als2.2 Other Documents:American Bureau of Shipping, Rules for Building andClassing Steel Vessels,Section 43.11 Equipment3American Welding Society Structural Welding Code, Chap-ter D1.143. Classification3.1 The size of the wildcat is identified by the chain size.3.2 Wildcats are furnished i
8、n four types as follows:3.2.1 Type IFabricated from structural steel plate forflanges, hubs, whelps, and chain pockets, joined by electricwelding. Surface hardness is approximately 150 HB.3.2.2 Type IIFabricated from structural steel plate forflanges, hubs, and chain pockets; and high-strength steel
9、castings for whelps, joined by electric welding. Surface hard-ness is approximately 150 HB for flanges and hubs and 300 HBfor whelps.3.2.3 Type IIICast from medium-strength carbon steelcastings to provide a surface hardness of approximately 150HB.3.2.4 Type IVCast from high-strength steel castings t
10、oprovide a surface hardness of approximately 300 HB.4. Descriptions of Terms4.1 chain groovecircumferential groove at the chain cen-terline to provide clearance for links passing normal to thewildcat shaft centerline.4.2 chain pocketsrecesses between the flanges and whelpsinto which links with flat
11、side orientated parallel to the wildcatshaft centerling lay.4.3 detachable linka “C” shaped link, closed by means ofa pair of closing pieces and a taper pin, and used to join anchorchain lengths and appendages into a continuous length aboardship.4.4 flangescircumferential rims on the outside of thew
12、helps, chain pockets, and chain groove.4.5 link gripthe inside dimension of a chain link repre-senting the effective length of a chain link in an assembledchain. Generally four times the nominal size of a stud linkanchor chain, see Fig. 1.4.6 whelpsprotrusions on the inside of the flanges of thewild
13、cat that resemble gear teeth and of such shape and1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.03 onOutfitting and Deck Machinery.Current edition approved May 1, 2006. Published May 2006. Origin
14、allyapproved in 1982. Last previous edition approved in 1998 as F 765 93 (1998).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 the standards Document Summary page
15、onthe ASTM website.3Available from American Bureau of Shipping (ABS), ABS Plaza, 16855Northchase Dr., Houston, TX 77060.4Available from The American Welding Society (AWS), 550 NW LeJeune Rd.,Miami, FL 33126.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
16、8-2959, United States.dimensions so as to follow the path of the chain, as it enters andleaves the wildcat. Faces of protrusions are separated by thechain groove to permit links with the flat side normal to thewildcat shaft centerline to pass, but blocking links with the flatside oriented parallel t
17、o the wildcat shaft centerline.4.7 wildcata rotating member specially contoured to re-ceive assembled chain links and connecting links around thecircumference of the member and of suitable strength to impartmotion to the chain when rotated.5. Ordering Information5.1 Orders for wildcats under this sp
18、ecification shall includethe following:5.1.1 Quantity (number),5.1.2 Size (chain size),5.1.3 ASTM designation and date of issue,5.1.4 Type (I, II, III, or IV),5.1.5 Size, grade, and type of chain,5.1.6 Availability of assembled chain and detachable link tobe furnished by the purchaser for test (see
19、Section 9),5.1.7 As-cast or machined dimensions for wildcat bore, hubwidth, and outside boss diameter, and5.1.8 Marking (shipping).6. Materials and Manufacture6.1 Material for Type I wildcats shall conform to Specifi-cation A 36/A 36M for flanges, hubs, whelps, and chainpockets, joined by electric w
20、elding in accordance with AWS,structural welding code Chapter D1.1. Type I wildcats in sizes2 in. and larger shall be stress-relieved. Material for Type IIwildcats shall conform to SpecificationA 36/A 36M for flangesand hubs, and chain pockets, and Specification A 148/A 148Mfor whelps, joined by ele
21、ctric welding in accordance withAWS, Structural Welding Code, Chapter D1.1, stress-relievedand heat-treated. Material for Type III wildcats shall conformto Specification A 27/A 27M, Grade 70-40, quenched andtempered. Material for Type IV wildcats shall conform toSpecification A 148/A 148M, Grade 150
22、-125, quenched andtempered.6.2 The manufacturers name or identification mark, chainsize, and pattern or drawing number shall be cast or stamped onthe wildcat, using minimum34-in. (19-mm) size characters.The marking shall not appear on a wearing surface and shall bevisible on an assembled windlass.7.
23、 Dimensions7.1 Wildcat must be fitted to the sample chain, and detach-able link (see Section 9). Principal dimensions of Types III andIV wildcats for chains in steps of18 in. (3 mm) are shown forinformation only in Table 1 and Table 2.7.2 Dimensions in Table 1 and Table 2 are developed inaccordance
24、with the following (see also Fig. 2 and Fig. 3):7.2.1 Bottom of chain pockets are relieved to clear enlarge-ments occurring at centers of chain links as manufactured.7.2.2 Each face of the whelp is a partial frustrum of a conedeveloped so that each link whose plane is parallel to thewildcat shaft ce
25、nterline will have end play as noted in Table 1and Table 2. This end play provides clearance between non-bearing side of whelp and the end of the next following link,the centerline plane of which is parallel to the axis of shaft.7.2.3 The inner surfaces of the chain pockets, that form theflanges of
26、the wildcat, are flat surfaces together forming thefrustrums of pentagonal pyramids. The traces of the intersec-tions of these flat surfaces or sides of the frustrums coincidewith the centerline of the whelps.7.2.4 The trace of the intersection of the plane at the bottomof the chain pocket and the s
27、ide of whelp forms a hyperbolicsection of a cone and is therefore a curved line.7.2.5 Wildcat radii are as follows with all dimensionshaving the same units:FIG. 1 Chain Wrap TestF 765 93 (2006)2TABLE 1 Dimensions in Inches of Types III and IV Wildcats for ChainsSize ofChainRR1R2R3XABOPS T UVR4R5End
28、Playof Link34 4.12 4.09 3.00 4.87 238 138 33812 1516 11532 221321316316 21383478 4.80 4.77 3.50 5.68 21116 112 37858 11332 158 333278732 2516 112781 5.49 5.43 4.00 6.49 3 158 43834 11732 11316 312 114 258 134 1118 6.18 6.12 4.62 7.31 314 178 47834 12732 218 33132 118932 32116 1116114 6.87 6.81 5.12
29、8.12 312 253878 2332 2716 4716 114516 3516 212 118138 7.56 7.50 5.62 8.93 334 218 57878 2932 22332 478 1381132 358 258 118112 8.24 8.18 6.19 9.74 4116 214 638 121732 3116 538 11238 4318158 8.93 8.87 6.75 10.55 438 212 678 118 278 338 52732 1581332 4516 314 1316134 9.63 9.57 7.31 11.37 41116 234 738
30、118 3132 358 614 134716 458 3916 114178 10.31 10.25 7.87 12.18 5 278 778 114 314 32932 62332 1781532 41516 31316 15162 10.99 10.93 8.37 12.99 514 3838 114 3716 4532 718 212 514 378 138218 11.68 11.62 8.87 13.80 5916 318 878 138 31932 41532 758 2181732 558 414 1716214 12.37 12.31 9.50 14.62 578 338 9
31、14 138 32932 434 73132 214916 51516 458 112238 13.05 12.99 10.00 15.42 6316 312 934 112 418 5116 8716 2381932 614 41116 11732212 13.74 13.68 10.62 16.24 612 358 1014 112 4716 538 81516 21258 658 514 1916258 14.43 14.37 11.25 17.05 61316 378 1034 158 41932 558 938 2582132 61516 538 158234 15.11 15.06
32、 11.75 17.86 718 41114 134 42932 691516 2341116 714 534 11116278 15.80 15.74 12.25 18.67 7716 414 1134 134 5116 6316 10516 2782332 758 51516 1343 16.48 16.42 12.75 19.48 734 438 1214 178 514 612 102332 334 71316 6516 178318 17.17 17.11 13.25 20.30 8116 458 1234 178 51732 62532 11316 3182532 814 612
33、11516314 17.85 17.79 13.87 21.10 838 434 1314 178 52332 7132 1138 3141316 858 658 2338 18.55 18.49 14.37 21.92 81116 51334 26132 7516 12116 3382732 81516 7116 2116312 19.23 19.17 15.00 22.73 9 518 1414 26316 7916 12716 31278 914 7516 218358 19.92 19.86 15.50 23.54 9516 538 1434 218 61932 73132 13 35
34、82932 9916 71116 2316334 20.60 20.54 16.00 24.35 958 558 1514 214 634 818 13716 3341516 978 8214378 21.30 21.24 16.62 25.17 91516 534 1534 214 63132 8716 1378 3783132 1014 8316 25164 21.98 21.92 17.00 25.98 1014 61614 238 7316 81316 14516 4110716 8916 238418 22.67 22.61 17.50 26.39 10916 614 1634 23
35、8 758 9116 141316 418 1132 1078 878 2716TABLE 2 Dimensions in Millimetres of Types III and IV Wildcats for ChainsSize ofChainRR1R2R3XABOPSTUVR4R5End Playof Link34 104.6 103.9 76.2 123.7 60.3 34.9 85.7 12.7 33.3 37.3 67.5 20.6 4.8 50.8 34.9 19.178 121.9 121.2 88.9 144.3 68.3 38.1 98.4 15.9 35.7 41.3
36、78.6 22.2 5.6 58.7 38.1 22.21 138.4 137.9 101.6 164.8 76.2 41.3 111.1 19.1 38.9 46.0 88.9 25.4 6.4 66.7 44.5 25.4118 157.0 155.4 117.3 185.7 82.6 47.6 123.8 19.1 46.8 54.0 100.8 28.6 7.1 76.2 52.4 27.0114 174.5 173.0 130.0 206.2 88.9 50.8 136.5 22.2 53.2 61.9 112.7 31.8 7.9 84.1 63.5 28.6138 192.0 1
37、90.5 142.7 226.8 95.3 54.0 149.2 22.2 57.9 69.1 123.8 34.9 8.7 92.1 66.7 28.6112 209.3 207.8 157.2 247.4 103.2 57.2 161.9 25.4 64.3 77.8 136.5 38.1 9.5 101.6 76.2 28.6158 226.8 225.3 171.5 268.0 111.1 63.5 174.6 28.6 73.0 85.7 148.4 41.3 10.3 109.5 82.6 30.2134 244.6 243.1 185.7 288.8 119.1 69.9 187
38、.3 28.6 77.0 92.1 158.8 44.5 11.1 117.5 90.5 31.8178 261.9 260.4 199.9 309.4 127.0 73.0 200.0 31.8 82.6 99.2 170.7 47.6 11.9 125.4 96.8 33.32 279.1 277.6 212.6 329.9 133.4 76.2 212.7 31.8 87.3 105.6 181.0 50.8 12.7 133.4 98.4 34.9218 296.7 295.1 225.3 350.5 141.3 79.4 225.4 34.9 91.3 113.5 193.7 54.
39、0 13.5 142.9 108.0 36.5214 314.2 312.7 241.3 371.3 149.2 85.7 235.0 34.9 99.2 120.7 202.4 57.2 14.3 150.8 117.5 38.1238 331.5 329.9 254.0 391.7 157.2 88.9 247.7 38.1 104.8 128.6 214.3 60.3 15.1 158.8 119.1 38.9212 349.0 347.5 269.8 412.5 165.1 92.1 260.4 38.1 112.7 136.5 227.0 63.5 15.9 168.3 133.4
40、39.7258 366.5 365.0 285.8 433.1 173.0 98.4 273.1 41.3 116.7 142.9 238.1 66.7 16.7 176.2 136.5 41.3234 383.8 382.5 298.5 453.6 181.0 101.6 285.8 44.5 124.6 152.4 252.4 69.9 17.5 184.2 146.1 42.9278 401.3 399.8 311.2 474.2 188.9 108.0 298.5 44.5 128.6 157.2 261.9 73.0 18.3 193.7 150.8 44.53 418.6 417.
41、1 323.9 494.8 196.9 111.1 311.2 47.6 133.4 165.1 272.3 76.2 19.1 198.4 160.3 47.6318 436.1 434.6 336.6 515.6 204.8 117.5 323.9 47.6 140.5 172.2 284.2 79.4 19.8 209.6 165.1 49.2314 453.4 451.9 352.3 535.9 212.7 120.7 336.6 47.6 145.3 178.6 288.9 82.6 20.6 219.1 168.3 50.8338 471.2 469.6 365.0 556.8 2
42、20.7 127.0 349.3 50.8 153.2 185.7 306.4 85.7 21.4 227.0 179.4 52.4312 488.4 486.9 381.0 577.3 228.6 130.2 362.0 50.8 157.2 192.1 315.9 88.9 22.2 235.0 185.7 54.0358 506.0 504.4 393.7 597.9 236.5 136.5 374.7 54.0 167.5 202.4 330.2 92.1 23.0 242.9 195.3 55.6334 523.2 521.7 406.4 618.5 238.1 142.9 387.
43、4 57.2 171.5 206.4 341.3 95.3 23.8 250.8 203.2 57.2378 541.0 539.5 422.1 639.3 252.4 146.1 400.1 57.2 177.0 214.3 352.4 98.4 24.6 260.4 208.0 58.74 558.3 556.8 431.8 659.9 260.4 152.4 412.8 60.3 182.6 223.9 363.5 101.6 25.4 268.3 214.3 60.3418 575.8 574.3 444.5 680.5 268.3 158.8 425.5 60.3 193.7 230
44、.2 376.2 104.8 26.2 276.2 225.4 61.9F 765 93 (2006)3FIG. 2 Wildcat DevelopmentF 765 93 (2006)4R3= mean effective radius, measured to the outsidecenter of a link laying in the displaced positionin a pocket,d = bar diameter (chain size),L = overall length of link,g = link grip,Sin 18 = 0.309 02,Cos 18
45、 = 0.951 06,R3=Sg0.309 02D21Sd0.951 06D22, andR4= L 3.36d.8. Workmanship, Finish, and Appearance8.1 Castings shall be smooth, of fine grain, and free ofcracks, hot tears, and blow holes, detrimental to end use.8.2 Castings shall have all flash material, vents, and gatesremoved and ground flush to ma
46、tch the surrounding surface.8.3 Welds shall be extended around the ends of membersand be free of pockets and irregularities that would tend to trapwater or mud.8.4 Castings and weldments shall be sand- or shot-blasted toremove all loose scale and slag.8.5 The outside faces of the wildcat flanges sha
47、ll be ma-chined to the extent necessary to rotate in true planes.9. Test Method9.1 To test the fit of the sample chain on the wildcat, use anine-link sample consisting of five joined common links, onedetachable link, and three joined common links. The samplechain shall be uniform, representative of
48、the chain to be used,and conform toAmerican Bureau of Shipping Grade 1, 2, or 3.9.2 Wrap the sample chain tightly around the wildcat,starting with the first common link in a pocket (see Fig. 1). Thelink grip dimension of the closure (gap) shall not exceed thelink grip length or be less than the link grip length minus38times the chain size.9.3 The dimensions of the wildcat may be reduced bychipping, grinding, or air-arc cutting for an acceptable chain fit.If air-arc cutting is used, not less than th
