ASTM B945-2006 Standard Practice for Aluminum Alloy Extrusions Press Cooled from an Elevated Temperature Shaping Process for Production of T1 T2 T5 and T10-Type Tempers《T1、T2、T5、和T.pdf
《ASTM B945-2006 Standard Practice for Aluminum Alloy Extrusions Press Cooled from an Elevated Temperature Shaping Process for Production of T1 T2 T5 and T10-Type Tempers《T1、T2、T5、和T.pdf》由会员分享,可在线阅读,更多相关《ASTM B945-2006 Standard Practice for Aluminum Alloy Extrusions Press Cooled from an Elevated Temperature Shaping Process for Production of T1 T2 T5 and T10-Type Tempers《T1、T2、T5、和T.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B 945 06Standard Practice forAluminum Alloy Extrusions Press Cooled from an ElevatedTemperature Shaping Process for Production of T1, T2, T5and T10Type Tempers1This standard is issued under the fixed designation B 945; the number immediately following the designation indicates the year
2、oforiginal 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 practice establishes the controls necessary forprod
3、uction of extrusions cooled from an elevated temperatureshaping (extrusion) process for the production of T1, T2, T5and T10type tempers (see ANSI H35.1).1.2 This practice is for production of extruded productsupplied in the alloys shown in Table 1 in the T1, T2, T5 orT10type tempers. It contains per
4、tinent information to be usedin establishing production practices and is descriptive ratherthan prescriptive.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 establish appro-priate safety
5、 and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of material purchase form a part of this standard to theextent referenced herein:2.2 ASTM Standards:2B 557 Test Methods f
6、or Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 647 Test Method for Indentation Hardness of AluminumAlloys by Means of a Webster Hardness GageE 648 Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy SourceB 881 Terminology Relating
7、to Aluminum- andMagnesium-Alloy ProductsB 918 Practice for Heat Treatment of Wrought AluminumAlloysE10 Test Method for Brinell Hardness of Metallic Materi-alsE18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE 2281 Practice for Process and Measurement Capab
8、ilityIndices2.3 ANSI Standard:H35.1 Alloy and Temper Designation Systems for Alumi-num33. Terminology3.1 DefinitionsRefer to Terminology B 881 for Defini-tions of Product terms used in this specification.4. EquipmentNOTE 1Equipment includes billet preheating, extruding and quench-ing.4.1 Prior to be
9、ing extruded, aluminum alloys are heated to atemperature not to exceed the temperatures shown in Table 1.Usual heating methods include, but are not limited to, induc-tion, flame impingement, or forced air. Controls shall beadequate to ensure that the equipment can be operated in amanner which preclu
10、des metal overheating or deleteriouscontamination of the metal by the furnace environment.4.1.1 Temperature control and recording devices used tomeasure temperature shall be calibrated as specified in 5.2.4.2 QuenchingQuenching methods may consist of, butare not limited to, air, water or water/glyco
11、l mixture in forcedair, water spray, fog or mist, standing wave, a quench tank oranother pressurized water device, or a combination thereof.1This practice is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.03 onAluminum Allo
12、y Wrought Products.Current edition approved May 15, 2006. Published May 2006.2For 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 ont
13、he ASTM website.3Available from the Aluminum Association, Inc., 1525 Wilson Blvd., Arlington,VA 22209, www.aluminum.orgTABLE 1 Extrusion Billet or Log Temperature High LimitAAlloyBillet or LogTemperatureUpper F6005, 6005A, 6105, 6061, 6162, 6351 10506060, 6063, 6101, 6463, 6560 10607005, 7116, 7129
14、1000AThese upper limit temperatures avoid the possibility of eutectic melting due tooverheating, and include a safety factor of approximately 25F.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.The quench equipment shall be used in a
15、 manner such that thequench parameters can be controlled and recorded.5. Quality Assurance, Calibration and Testing5.1 Process Documentation:5.1.1 Extrusion thermal practices shall be established, docu-mented, controlled and monitored so that shipped productmeets order requirements.5.1.1.1 Capabilit
16、yThe producers process shall have beenproven capable per Practice E 2281, with documented evidenceof statistically verified capability, to produce product in variousproduct classes which conforms to required mechanical prop-erty minimums. Methods to establish capability are defined inPractice E 2281
17、. Appropriate models shall be used for repre-sentation of the data as well as the generation of control charts.For further information see ASTM MNL7A4.5.1.2 Recommended time measurements:5.1.2.1 Time interval between removal of the billet from thebillet heating equipment and start of extrusion,5.1.2
18、.2 Time interval between the metal exiting from pressand its entering the quench, and5.1.2.3 Time interval between metal entry into and exit fromthe quench below the identified critical maximum temperature.5.2 CalibrationTemperature control and recording de-vices used to measure temperature shall be
19、 calibrated inaccordance with documented calibration practices.5.2.1 Temperature Measuring System AccuracyThe accu-racy of any temperature sensing system shall be within 61%.5.3 RecordsRecords shall be maintained for each extru-sion press/quench facility involved in the production of extru-sions coo
20、led from an elevated temperature shaping process toshow compliance with this practice. The records shall includeidentification of the specific press involved (which includesmetal heating and quenching equipment), the frequency andresults of calibration of measurement equipment used forcontrol, and t
21、he dates and description of equipment repairs oralteration and instances of disqualification and correctiveaction.5.4 Process Surveillance Tests:5.4.1 Test Requirements:5.4.1.1 Surveillance tests of heating, extrusion, and quenchfacilities operated in accordance with documented proceduresshall have
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