ASTM B67-2005 Standard Specification for Car and Tender Journal Bearings Lined《车辆及煤水车用有衬里的轴颈轴承标准规范》.pdf

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1、Designation: B 67 05Standard Specification forCar and Tender Journal Bearings, Lined1This standard is issued under the fixed designation B 67; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in p

2、arentheses indicates the year of last reapproval. A superscriptepsilon (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. Scope*1.1 This specification covers the establishment of require-ments fo

3、r lined journal bearings for use on locomotive tenders,passenger cars, and freight equipment cars. The alloy specifiedis UNS No. C94100.21.2 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to e

4、stablish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B 824 Specification for General Requirements for CopperAlloy CastingsE57 Methods for Chemical Analysis of White Metal Bear-ing Alloys4E

5、 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 527 Practice for Numbering Metals and Alloys (UNS)3. General Requirements3.1 The following sections of Specification B 824 constitutea part of this specification:3.1.1 Terminology (Section 3).3.1.2 Samp

6、ling (Section 10).3.1.3 Number of Tests and Retests (Section 11).3.1.4 Specimen Preparation (Section 12).3.1.5 Test Methods (Section 13).3.1.6 Significance of Numerical Limits (Section 14).3.1.7 Inspection (Section 15).3.1.8 Rejection and Rehearing (Section 16).3.1.9 Certification (Section 17).3.1.1

7、0 Test Report (Section 18).3.1.11 Product Marking (Section 19).3.1.12 Supplementary Requirements (S1S4).4. Ordering Information4.1 Include the following information when placing ordersfor bearings under this specification as applicable:4.1.1 Quantity of bearings required,4.1.2 ASTM designation and y

8、ear of issue (for example,B6705)4.1.3 Pattern and drawing number and condition (as cast,machined, and so forth),4.1.4 Chemical analysis of residual elements, if specified inthe purchase order (Section 6),4.1.5 Fracture testing (Section 8),4.1.6 Witness inspection (Specification B 824), and4.1.7 Prod

9、uct marking (Section 13).5. Materials and Manufacture5.1 Before lining, the brass backs shall be bored andthoroughly tinned in accordance with the best standard prac-tice.After lining, the ends of the bearings shall be made smoothby scraping, filing, or machining. They shall not be ground orrubbed w

10、ith abrasive materials.5.2 The purchaser reserves the right to inspect the brassbacks after boring and previous to tinning and lining.5.3 Unless otherwise specified, bearings will be furnishedwith linings14 in. (6.35 mm) in thickness.5.4 The bearings shall be sound and free of blowholes,dross, and m

11、echanical defects. All bearing surfaces, includingends, before and after lining, shall be smooth finished and freefrom sand.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for

12、Remelting.Current edition approved Oct. 1, 2005. Published November 2005. Originallyapproved in 1927. Last previous edition approved in 1993 as B 67 93a, which waswithdrawn June 2002 and reinstated October 2005.2The UNS system for copper and copper alloys (see Practice E 527) is a simpleexpansion of

13、 the former standard designation system accomplished by the additionof a prefix “C” and a suffix “00”. The suffix can be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.or

14、g. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Un

15、ited States.6. Chemical Composition of Backing6.1 The backing metal shall conform to the requirements fornamed elements shown in Table 1 for Copper Alloy UNS No.C94100.6.2 These specification limits do not preclude the presenceof other elements. Limits may be established for unnamedelements by agree

16、ment between manufacturer or supplier andpurchaser. Copper or zinc may be given as remainder and maybe taken as the difference between the sum of all elementsanalyzed and 100 %. When all named elements in Table 1 areanalyzed, their sum shall be 98.7 % minimum.6.3 It is recognized that residual eleme

17、nts may be present incast copper-base alloys. Analysis shall be made for residualelements only when specified in the purchase order (Specifi-cation B 824).6.4 Sampling will be in accordance with the requirements ofPractice E 255.7. Chemical Composition of Lining7.1 The lining metal shall conform to

18、the requirements fornamed elements in Table 2.8. Examination of Fracture8.1 The finished bearing representing a lot for acceptanceshall be broken, either longitudinally or transversely, or both,in order to ascertain the uniformity of the grain of the metal.When this fracture shows separation, imperf

19、ect mixing ofcomponent parts, or dross or dirt spots, the lot shall be rejected.9. Dimensions and Permissible Variations9.1 The purchaser shall furnish drawings showing the di-mensions of the bearings ordered and permissible variationstherefrom, and the bearings shall conform to these drawingswithin

20、 such permissible variations.9.2 The thickness at the center of the brass and of thecomplete bearing shall not vary more than132 in. (0.794 mm)over or under the normal thickness shown on the drawing. Thethickness of the lining shall not vary more than132 in. over orunder the normal thickness shown o

21、n the drawing.10. Casting Repair10.1 The castings shall not be repair welded.11. Sampling11.1 Bearings shall be divided into lots of 300, or fractionthereof, and one bearing shall be taken from each lot for thepurpose of fracture testing and product marking.12. Test Methods12.1 Chemical analysis of

22、the lining shall be made inaccordance with Methods E57.13. Product Marking13.1 The name or initials of the manufacturer, the initials ofthe purchaser, size of journal bearing, pattern number, and yearcast shall be legibly cast with raised figures on a depressedsurface of each bearing, as shown on th

23、e drawings. When aserial number is specified, each lot of 300 bearings, or fractionthereof, shall bear the same serial number, commencing withthe numeral one at the beginning of the year and continuingconsecutively until the end of the year, at each manufacturersplant.14. Keywords14.1 bronze casting

24、s; journal bearingsTABLE 1 Chemical Composition of Backing, Copper Alloy UNS No. C94100NOTE 1Composition percentages are maximum unless otherwise noted.Major Elements Residual ElementsCopper Tin Lead Zinc Iron AntimonyNickel,includingCobaltSulfurPhospho-rousAluminum Silicon72.079.0A4.56.5 18.022.0 1

25、.0 0.25 0.8 1.0 0.08B0.50C0.005 0.005ACu + Sum of Named Elements, 98.7 %.BFor continuous castings, S shall be 0.25 % maximum.CFor continuous castings, P shall be 1.5 % maximum.TABLE 2 Chemical Requirements of LiningTin, % as specifiedAntimony, min, % 8.0Tin and antimony, % 10.014.0Arsenic, max, % 0.

26、2Copper, max, % 0.5Sum of tin, antimony, lead and arsenic, min, % 99.25Other impurities, max, % 0.75B67052SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the last issue (B 67 93a)that may impact the use of this standard. (Approved Oct. 1, 2005.)

27、(1) Completed comprehensive 5-year review. Some sectionswere renumbered, and in many cases, reworded to conform tothe new Outline of Form for Specifications (OFS) and Formand Style for ASTM Standards (Blue Book).(2) Added the safety caveat.(3) Changed Table 1, Chemical Composition, to reflect thecur

28、rent CDA Standard Designations. Some required chemicalcompositions have been changed.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of th

29、e validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. You

30、r comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments

31、 have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B67053