ASTM A1036-2004(2015) Standard Guide for Measuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers《使用小型单板测试仪测量平板轧钢工频磁特性的标准指南》.pdf
《ASTM A1036-2004(2015) Standard Guide for Measuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers《使用小型单板测试仪测量平板轧钢工频磁特性的标准指南》.pdf》由会员分享,可在线阅读,更多相关《ASTM A1036-2004(2015) Standard Guide for Measuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers《使用小型单板测试仪测量平板轧钢工频磁特性的标准指南》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A1036 04 (Reapproved 2015)Standard Guide forMeasuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers1This standard is issued under the fixed designation A1036; the number immediately following the designation indicates the year ofor
2、iginal adoption or, in the case of revision, 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 guide covers procedures for interpreting the spe-cific c
3、ore loss and peak permeability determined using smallsingle-sheet test systems. It is limited to single-sheet testsystems that require a test specimen or coupon be cut from thematerial being tested and are designed such that the entirewidth of that test specimen is magnetized during testing.1.2 This
4、 guide is primarily intended for measurements ofthe magnetic properties of flat-rolled electrical steels at fre-quencies of 50 Hz or 60 Hz under sinusoidal flux conditions.1.3 This guide includes procedures to provide correlationwith the 25-cm Epstein test method (Test Method A343/A343M).1.4 The ran
5、ge of magnetic flux densities is governed by theproperties of the test specimens and the instruments and testpower source. Nonoriented electrical steels may be tested atmagnetic flux densities up to about 16-kG 1.6T for core loss.The maximum magnetic field strength for peak permeabilitytesting is li
6、mited by the current carrying capacity of themagnetizing winding and the test power source. Single sheettesters are typically capable of testing at magnetic fieldstrengths up to 50 Oe 4000 A/m or more.1.5 Within this guide, a small single sheet tester (small SST)is defined as a magnetic tester desig
7、ned to test flat, rectangularsheet-type specimens. Typical specimens for these testers aresquare (or nearly so). The design of the small SST test fixturemay be small enough to accommodate specimens about 5 by 5cm or may be large enough to accommodate specimens about36 by 36 cm. Specimens for a parti
8、cular SST must beappropriate for the particular test fixture.1.6 This guide covers two alternative test methods: Method1 and Method 2.1.6.1 Method 1 is an extension of Method 1 of Test MethodA804/A804M, which describes a test fixture having twowindings that encircle the test specimen and two low-rel
9、uctance, low-core loss ferromagnetic yokes that serve as fluxreturn paths. The dimensions of the test fixture for Method 1are not fixed but rather may be designed and built for anynominal specimen dimension within the limits given in 1.5.The power loss in this case is determined by measuring theaver
10、age value of the product of primary current and inducedsecondary voltage.1.6.2 Method 2 covers the use of a small single sheet tester,which employs a magnetizing winding, a magnetic flux sensingwinding, and a magnetic field strength detector. The power lossin this case is determined by measuring the
11、 average value ofthe product of induced secondary voltage and magnetic fieldstrength.1.6.3 The calibration method described in the annex of thisguide applies to both test methods.1.7 The values and equations stated in customary (cgs-emuand inch-pound) or SI units are to be regarded separately asstan
12、dard. Within this standard, SI units are shown in brackets.The values stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with this standard.1.8 This standard does not p
13、urport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:
14、2A340 Terminology of Symbols and Definitions Relating toMagnetic TestingA343/A343M Test Method for Alternating-Current Mag-netic Properties of Materials at Power Frequencies UsingWattmeter-Ammeter-Voltmeter Method and 25-cm Ep-stein Test FrameA677 Specification for Nonoriented Electrical Steel Fully
15、Processed Types1This guide is under the jurisdiction of ASTM Committee A06 on MagneticProperties and is the direct responsibility of Subcommittee A06.01 on Test Methods.Current edition approved Oct. 1, 2015. Published October 2015. Originallyapproved in 2004. Last previous edition approved in 2009 a
16、s A103604 (2009).DOI: 10.1520/A1036-04R15.2For 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 onthe ASTM website.Copyright ASTM Inte
17、rnational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1A683/A683M Specification for Nonoriented Electrical Steel,Semiprocessed TypesA726 Specification for Cold-Rolled Magnetic LaminationQuality Steel, Semiprocessed TypesA804/A804M Test Methods for Alternating-
18、Current Mag-netic Properties of Materials at Power Frequencies UsingSheet-Type Test SpecimensA840/A840M Specification for Fully Processed MagneticLamination Steel3. Terminology3.1 Definitions:3.1.1 GeneralThe definitions of terms, symbols, and con-version factors relating to magnetic testing found i
19、n Terminol-ogy A340 are used in the methods in this guide.3.2 Definitions of Terms Specific to This Standard:3.2.1 sheet specimena rectangular specimen comprised ofa single piece of material or paralleled multiple strips ofmaterial arranged in a single layer.3.2.2 small single sheet testera magnetic
20、 tester designedto determine the magnetic properties of small rectangularsheet-type specimens.4. Significance and Use4.1 Materials EvaluationSmall single sheet testers weredeveloped to supplement the testing of Epstein specimens forvarious applications. They are especially appropriate for deter-mini
21、ng the magnetic properties of samples when insufficientmaterial is available for preparation of an Epstein specimen.Although the small specimen size is attractive, the precision ofthe small sheet testers is not expected to be as good as that ofthe test method Test Method A343/A343M. Small sheet test
22、ersare frequently used to measure the properties of both fullyprocessed and semiprocessed nonoriented and magnetic lami-nation steels. Specimens of semiprocessed steels are normallysubjected to an appropriate quality development anneal prior totesting. Small sheet testers may also be used to evaluat
23、eoriented electrical steels in either the as sheared or stress-reliefannealed condition.5. Apparatus5.1 Test Method 1The apparatus for Test Method 1 in-cludes a test fixture having two windings that encircle the testspecimen (a magnetizing winding and a flux-sensing secondarywinding) and two low-rel
24、uctance, low-core loss ferromagneticyokes that serve as flux return paths. Such a test fixture may beconstructed by following the instructions given in Annex A1 ofTest Method A804/A804M. The test power and instrumenta-tion for this method are described as Test Method 1 in TestMethod A804/A804M. The
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