ASTM D5579-2006 Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test《循环耐久性试验中人工传动装置用润滑剂热稳定性评价的标准试验方法》.pdf
《ASTM D5579-2006 Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test《循环耐久性试验中人工传动装置用润滑剂热稳定性评价的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D5579-2006 Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test《循环耐久性试验中人工传动装置用润滑剂热稳定性评价的标准试验方法》.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 5579 06An American National StandardStandard Test Method forEvaluating the Thermal Stability of Manual TransmissionLubricants in a Cyclic Durability Test1This standard is issued under the fixed designation D 5579; the number immediately following the designation indicates the year ofo
2、riginal adoption or, in the case of revision, the 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.1. Scope1.1 This test method covers the thermal stability of fluids for
3、use in heavy duty manual transmissions when operated at hightemperatures.1.2 The lubricant performance is measured by the numberof shifting cycles that can be performed without failure ofsynchronization when the transmission is operated while con-tinuously cycling between high and low range.1.3 Corr
4、elation of test results with truck transmission ser-vice has not been established. However, the procedure has beenshown to appropriately separate two transmission lubricants,which have shown satisfactory and unsatisfactory field perfor-mance in the trucks of one manufacturer.1.4 Changes in this test
5、 method may be necessary due torefinements in the procedure, obsolescence of parts, or re-agents, and so forth. These changes will be incorporated byInformation Letters issued by the ASTM Test MonitoringCenter (TMC).2The test method will be revised to show thecontent of all the letters, as issued.1.
6、5 The values stated in inch-pound units are to be regardedas standard. When materials, products, or equipment areavailable only in inch-pound units, SI units are omitted.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility
7、of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.7 This test method is arranged as follows:SectionScope 1Referenced Documents 2Terminology 3Summary of Test Method 4Significance and Use 5Appara
8、tus 6Test Transmission 6.2Transmission Mounts 6.3Oil-Circulating System 6.4Oil Return Hole 6.5Air Pressure Controls 6.6Drive System 6.7Instrumentation 6.8Thermocouple Placement 6.9Reagents and Materials 7Safety 8Preparation of Apparatus 9Cleaning of Parts 9.1Assembly 9.2Calibration 10Transmission an
9、d Test Stand Calibration 10.1Reference Oils 10.2Reference Oil Test Frequency 10.3Instrumentation Calibration 10.4Shift Time Calibration 10.5Operating Procedure 11System Flush and Charge 11.1Test Operation 11.2Shut-Down Procedure 11.3Transmission Disassembly 11.4Determination of Test Results 12Failur
10、e Criteria 12.1Shifter Fork Wear 12.2Test Validity Determination 12.3Report 13Precision and Bias 14Keywords 15Test Validity Calculations and Limits Annex A1Test Kit Parts Annex A2HTCT Test Report Forms and Data Dictionary Annex A3Manual Transmission Cyclic Durability Test PartsInspection and Wear Me
11、asurementsAnnex A42. Referenced Documents2.1 ASTM Standards:3D 235 Specification for Mineral Spirits (Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 SAE Standard:SAE J308 Axle and Manual Transm
12、ission Lubricants41This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.B0 on Automotive Lubricants.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 1994. Last previous
13、edition approved in 2005 as D 557905.2ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 15206-4489.This edition incorporates revisions in all Information Letters through No. 05-2.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at servic
14、eastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
15、t Conshohocken, PA 19428-2959, United States.2.3 Military Standard:MIL-L-2105 Lubricating Oil, Gear, Multipurpose52.4 Other Standard:GO-H Mack Trucks Oil,Gear: Multi-Purpose63. Terminology3.1 Definitions:3.1.1 wearthe loss of material from two or more surfacesin relative motion.3.2 Definitions of Te
16、rms Specific to This Standard:3.2.1 dual-range transmissiona type of transmission inwhich the driver first shifts through all of the mainbox gearratios in low range, and then shifts to high range and shiftsthrough the mainbox again. The section containing the high-low range is the compound section.3
17、.2.2 friction diska steel circular plate to which a frictionmaterial has been bonded.3.2.3 glazedthe condition of the friction disks whenprecipitates have filled the pores in the friction material,polishing the surface, and changing the frictional properties.3.2.4 reaction diska steel disk that mate
18、s with the frictiondisk during synchronization.3.2.5 shift timethe period of time required for the coun-tershaft speed to increase from 500 to 700 r/min (high-to-low)or from 1700 to 500 r/min (low-to-high) shift.3.2.6 synchronizera pack of friction and reaction platesused to match the speeds of the
19、low- and high-range gears priorto engagement.3.2.7 unsynchronized shifta shift in which the speed of themating gears is not matched to the speed of the transmissionoutput shaft by the synchronizer.4. Summary of Test Method4.1 Prior to each test run, the transmission is disassembledand all parts, inc
20、luding the case and the oil-circulating andheating systems, are thoroughly cleaned. The transmission isrebuilt with a new synchronizer assembly, including measuredshifter fork, friction, and reaction disks. All other worn ordefective parts are replaced.4.2 The rebuilt transmission is installed on a
21、test stand.4.3 The transmission and oil system are flushed with the testoil in accordance with the flush procedure.4.4 The flush oil is drained, and the test oil is measured andcharged to the transmission.4.5 The transmission is started and operated in low rangeuntil the oil temperature reaches the
22、test operating range.4.6 The transmission is automatically cycled between lowand high range until two unsynchronized shifts occur or thedesired length of test is reached without failure. The timerequired to shift from high range to low range is recorded eachhour.4.7 At the conclusion of the test, th
23、e test parts are removedand visually inspected. The shifter fork and friction plates aremeasured again to determine wear.5. Significance and Use5.1 This test method is used to evaluate automotive manualtransmission fluids for thermal instability, which results indeterioration of synchronizer perform
24、ance.5.2 This test method may also be utilized in other specifi-cations and classifications of transmission and gear lubricantssuch as the following:5.2.1 (final API designation of PG-1),5.2.2 Military Specification MIL-L-2105,5.2.3 SAE Information Report J308 Axle and ManualTransmission Lubricants,
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD55792006STANDARDTESTMETHODFOREVALUATINGTHETHERMALSTABILITYOFMANUALTRANSMISSIONLUBRICANTSINACYCLICDURABILITYTEST
链接地址:http://www.mydoc123.com/p-520151.html