1、Designation: D 6203 06An American National StandardStandard Test Method forThermal Stability of Way Lubricants1This standard is issued under the fixed designation D 6203; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、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 evaluation of the thermalstability of hydrocarbonbased way lubricants, although oxi-datio
3、n may occur during the test.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.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 th
4、is standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 4057 Practice for Manual Sampling of Petroleum andPetroleum Products2.2 Other Standards:UNS C11000 Electrolytic Tough
5、 Pitch Copper3AISI W1 1% Carbon Tool Steel43. Summary of Test Method3.1 A beaker containing test oil and copper and steel rods isplaced in a gravity convection electric oven for 24 h at a testtemperature of 100C. At the completion of the test, the copperand steel rods are visually rated for discolor
6、ation and thebeaker is visually evaluated for deposits.4. Significance and Use4.1 Thermal stability characterizes physical and chemicalproperty changes which may adversely affect an oils lubricat-ing performance. This test method evaluates the thermalstability of a way lubricant in the presence of c
7、opper and steelrods at 100C. Deposits and rod colors are the evaluationcriteria. No correlation of the test to field service has beenmade.4.2 This test method is intended for use in qualifying a waylubricant, rather than for quality control or condition monitor-ing purposes.5. Apparatus5.1 Gravity C
8、onvection Electric Oven, capable of maintain-ing the samples at a test temperature of 100 6 2C.5.2 Calibrated Temperature Indicator, suitable for measur-ing and controlling the oven temperature.5.3 Griffn Beakers, borosilicate glass, 100 mL.5.4 Copper Test Specimens, in accordance withUNS C11000, 99
9、.9 % pure electrolytic tough pitch copper, 6.4mm in diameter by 7.6 cm in length (0.25 by 3.0 in.).5.5 Steel Test Specimens, in accordance with AISI W1 1%carbon steel, 6.4 mm in diameter by 7.6 cm in length (0.25 by3.0 in.).5.6 Silicon Carbide Abrasive, 320 grit with cloth backing.5.7 Crocus Cloth.5
10、.8 Cincinnati Milacron Color Chart.55.9 Facial Tissue.6. Reagents6.1 Reagent Grade Acetone.(WarningFlammable, healthhazard.)6.2 Reagent Grade Heptane.(WarningFlammable,health hazard.)7. Preparation of Metal Rods7.1 Handle the rods at all times using forceps, facial tissue,or suitable gloves.7.2 Clea
11、n the iron and copper catalyst rods, whether new orpreviously used, prior to use. Clean the rods with the 320 gritsilicon carbide abrasive cloth while rotating the rods in a drillchuck at 1700 to 1800 rev/min. Clean the surface until it has abright copper or steel appearance. Discard rods when diame
12、teris less than 6 mm.7.3 Prepare surfaces finally with a crocus cloth. Remove allgrind marks. Finish the rods to a lightly polished surface finish.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility ofSubcommitteeD02.
13、L0.01 on Metal Removal Fluids and Lubricants.Current edition approved Dec. 1, 2006. Published January 2007. Originallyapproved in 1997. Last previous edition approved in 2001 as D 620397(2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at se
14、rviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Copper Development Assoc., 2 Greenwich Office Park, Box1840, Greenwich, CT 06836.4Available from American Iron and Steel Institute (AISI), 1140 Connecti
15、cutAve., NW, Suite 705, Washington, DC 20036, http:/www.steel.org.5Available from Milacron Inc., 2090 Florence Ave., Cincinnati, OH 45206.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.4 Wash the rods individually with acetone and
16、 air dry oncompletion of the polishing operation.8. Test Procedure8.1 Place a representative 75 mL sample of test oil obtainedin accordance with Practice D 4057 sampling procedure in aclean 100 mL Griffin beaker containing one each of the cleanedand polished iron and copper rods.8.2 Place the rods c
17、rossed in the beaker so that they are incontact at one point. The oil should completely cover the rods.8.3 Place the beaker and its contents on a tray in the oven.Keep the beakers as far from the walls as possible.8.4 Maintain the temperature at the center of the oven at 98to 102C for 24.0 to 24.5 h
18、.8.5 Keep the oven doors closed during the entire test period.8.6 At the completion of 24 h, remove the beakers from theoven and allow to cool to room temperature before proceeding.Continue within 2 h. Individually remove the rods from the oilsample. Inspect for deposits clinging to the rods. Wipe w
19、ith apiece of facial tissue and inspect for color and etching.8.7 Copper Rod InspectionVisually evaluate the color ofthe rod against the Cincinnati Milacron color chart and record.Record any etching that is evident to the naked eye.8.8 Steel Rod AnalysisVisually evaluate the color of therod against
20、the Cincinnati Milacron color chart and record.Record any etching that is evident to the naked eye.8.9 Beaker InspectionInvert the beaker and allow thesample to drain for at least 30 min. Rinse with two 50-mLportions of heptane. Inspect the beaker and record any depositsthat are visible to the naked
21、 eye.9. Report9.1 Report the following information:9.1.1 Color of the copper and steel rods using the numericaldesignations on the chart.9.1.2 Any etching.9.1.3 Whether any deposits were found on the rods orbeaker10. Precision and Bias10.1 PrecisionIt is not possible to specify the precision ofthe p
22、rocedure in this test method for measuring the thermalstability of way lubricants, because the results are visualratings, not numerical values. Therefore, a statistical treatmentis inappropriate. The results of interlaboratory testing areshown in Table 1.10.2 BiasSince there is no accepted reference
23、 materialsuitable for determining the bias for the procedure, bias has notbeen determined.11. Keywords11.1 bed lubricants; Cincinnati Milacron; copper corrosion;deposits; heat test; oil sludging; slideway lubricants; steelcorrosion; thermal stability; way lubricantsASTM International takes no positi
24、on 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 the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility
25、.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. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM
26、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 have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address sh
27、own 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).TABLE 1 Results of Interlaboratory TestingCopper Rod Rating Steel Rod Rating Deposits (Y/N)Cooperator: 345634563456Waylube:A 12211111NNNNB 55351111NNNN5545C 33421111YNNND 33521111NNNND6203062
