ASTM B943-2009 Standard Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications《电子设备热喷涂用锌和锌合金线的标准规范》.pdf
《ASTM B943-2009 Standard Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications《电子设备热喷涂用锌和锌合金线的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM B943-2009 Standard Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications《电子设备热喷涂用锌和锌合金线的标准规范》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B943 09Standard Specification forZinc and Tin Alloy Wire Used in Thermal Spraying forElectronic Applications1This standard is issued under the fixed designation B943; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、 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. Scope*1.1 This specification covers zinc and tin alloy wire, includ-ing zinc-aluminum, zinc-aluminum-copper, zinc-tin,
3、 zinc-tin-copper and tin-zinc, used as thermal spray wire in the elec-tronics industry.1.1.1 Certain alloys specified in this standard are also usedas solders for the purpose of joining together two or moremetals at temperatures below their melting points, and for otherpurposes (as noted in Annex A1
4、). Specification B907 coversZinc, Tin and Cadmium BaseAlloys Used as Solders which areused primarily for the purpose of joining together two or moremetals at temperatures below their melting points and for otherpurposes (as noted in the Annex part of Specification B907).Specification B833 covers Zin
5、c and Zinc Alloy Wire forThermal Spraying (Metallizing) used primarily for the corro-sion protection of steel (as noted in the Annex part ofSpecification B833).1.1.2 Tin base alloys are included in this specificationbecause their use in the electronics industry is similar to the useof certain zinc a
6、lloys but different than the major use of the tinand lead solder compositions specified in Specification B32.1.1.3 These wire alloys have a nominal liquidus temperaturenot exceeding 850F (455C).1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses a
7、re mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 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 become familiarwith all hazar
8、ds including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Stand
9、ards:2B32 Specification for Solder MetalB833 Specification for Zinc and Zinc Alloy Wire for Ther-mal Spraying (Metallizing) for the Corrosion Protection ofSteelB899 Terminology Relating to Non-ferrous Metals andAlloysB907 Specification for Zinc, Tin and Cadmium Base AlloysUsed as SoldersE29 Practice
10、 for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE46 Test Methods for Chemical Analysis of Lead andTin-Base Solder3E51 Method for Spectrographic Analysis of Tin Alloys bythe Powder Technique3E87 Methods for Chemical Analysis of Lead, Tin, Anti-mony, and Their All
11、oys (Photometry Method)3B527 Test Method for Determination of Tap Density ofMetallic Powders and CompoundsE536 Test Methods for Chemical Analysis of Zinc and ZincAlloys2.2 Federal Standard:4Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.3 ISO Standards:5ISO 3815-1 Zinc and zinc alloys Part
12、 1:Analysis of solidsamples by optical emission spectrometry1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.04 on Zinc and Cadmium.Current edition approved Oct. 1, 2009. Published November 2009. Or
13、iginallyapproved in 2005. Last previous edition approved in 2005 as B943 - 05. DOI:10.1520/B0943-09.2For 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 Do
14、cument Summary page onthe ASTM website.3Withdrawn.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York
15、, NY 10036, http:/www.ansi.org.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, United States.ISO 3815-2 Zinc and zinc alloys Part 2: Analysis byinductively coupled plasma optical em
16、ission spectrometry2.4 Military Standard:4MIL-STD-129 Marking for Shipment and Storage3. Terminology3.1 Terms shall be defined in accordance with TerminologyB899.4. Classification4.1 Type DesignationThe type designation uses the fol-lowing symbols to properly identify the material:4.1.1 Alloy Compos
17、itionThe composition is identified bya two or four-letter symbol and a number. The letters typicallyindicate the chemical symbol for the critical element(s) in thewire and the number indicates the nominal percentage, byweight, of the primary element in the wire (see Table 1).5. Ordering Information5
18、.1 Orders for material under this specification indicate thefollowing information, as required, to adequately describe thedesired material.5.1.1 Type designation (see 4.1),5.1.2 Detailed requirements for special forms,5.1.3 Dimensions of wire (see 9.2),5.1.4 Unit weight,5.1.5 Packaging (see Section
19、17),5.1.6 Marking (see Section 16),5.1.7 ASTM Specification number and issue, marked on (a)purchase order and (b) package or spool, and5.1.8 Special requirements, as agreed upon between sup-plier and purchaser.6. Materials and Manufacture6.1 The producer shall have each lot of wire as uniform inqual
20、ity as practicable and of satisfactory appearance in accor-dance with best industrial practices.7. Chemical Composition7.1 The wire shall conform to the requirements prescribedin Table 1.7.2 The manufacturer shall perform chemical analyses asdirected in Test Methods E536 or by other methods of at le
21、astequal accuracy to confirm that the wire conforms to therequirements of composition. In case of dispute, analysis byTest Methods E536 shall be accepted. Analysis of alloy wiresnot covered by Test Methods E536 shall be agreed uponbetween the manufacturer and the purchaser.NOTE 1By mutual agreement
22、between supplier and purchaser, analy-sis may be required and limits established for elements or compounds notspecified in Table 1.8. Dimensions and Unit Weight8.1 The dimensions and unit weight of wire are specified in5.1.3 and 5.1.4. The tolerance on specified outside diametershall be 65%or60.002
23、in. (0.05 mm), whichever is greater.9. Workmanship, Finish and Appearance9.1 The wire shall be clean and free of corrosion, adheringforeign material, scale, seams, nicks, burrs, and other defectswhich would interfere with the operation of thermal sprayingequipment. The wire shall uncoil readily and
24、be free of bendsor kinks that would prevent its passage through the thermalspray gun.9.2 The wire shall be a continuous length per spool, coil, ordrum. Splices or welds are permitted, provided that they do notinterfere with the thermal spray equipment or coating process.9.3 The starting end of each
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