NF T90-204-1979 水的测试.炼油厂含水排出物.酚含量的测定

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【英文标准名称】:Calculationofloadcapacityofspurandhelicalgears-Basicprinciples,introductionandgeneralinfluencefactors
【原文标准名称】:正齿轮和斜齿轮负载能力的计算.基本原理、介绍和一般影响因素
【标准号】:BSISO6336-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-10-31
【实施或试行日期】:2006-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:负载能力的计算;圆柱齿轮;定义;齿轮箱;齿轮;斜齿轮;影响因素;荷载能力;安全;正齿轮
【英文主题词】:Calculationofloadcapacity;Cylindricalgears;Definition;Definitions;Gearboxes;Gearwheels;Helicalgears;Influencefactors;Loadcapacity;Safety;Spurgear;Spurgears
【摘要】:ThispartofISO6336presentsthebasicprinciplesof,anintroductionto,andthegeneralinfluencefactorsfor,thecalculationoftheloadcapacityofspurandhelicalgears.TogetherwithISO6336-2,ISO6336-3,ISO6336-5andISO6336-6,itprovidesamethodbywhichdifferentgeardesignscanbecompared.Itisnotintendedtoassuretheperformanceofassembleddrivegearsystems.Itisnotintendedforusebythegeneralengineeringpublic.Instead,itisintendedforusebytheexperiencedgeardesignerwhoiscapableofselectingreasonablevaluesforthefactorsintheseformulaebasedonknowledgeofsimilardesignsandawarenessoftheeffectsoftheitemsdiscussed.TheformulaeinISO6336areintendedtoestablishauniformlyacceptablemethodforcalculatingthepittingresistanceandbendingstrengthcapacityofcylindricalgearswithstraightorhelicalinvoluteteeth.ISO6336includesproceduresbasedontestingandtheoreticalstudiessuchasthoseofHirt[1],Strasser[2]andBrossmann[3].Theresultsofratingcalculationsmadebyfollowingthismethodareingoodagreementwithpreviouslyacceptedgearcalculationsmethods(seeReferences[4]to[8])fornormalworkingpressureanglesupto25°andreferencehelixanglesupto25°).Forlargerpressureanglesandlargerhelixangles,thetrendsofproductsYFYSYβand,respectively,ZHZεZβarenotthesameasthoseofsomeearliermethods.TheuserofISO6336iscautionedthatwhenthemethodsinISO6336areusedforotherhelixanglesandpressureangles,thecalculatedresultswillneedtobeconfirmedbyexperience.TheformulaeinISO6336arenotapplicablewhenanyofthefollowingconditionsexist:?spurorhelicalgearswithtransversecontactratioslessthan1,0;?spurorhelicalgearswithtransversecontactratiosgreaterthan2,5;?interferencebetweentoothtipsandrootfillets;?teetharepointed;?backlashiszero.TheratingformulaeinISO6336arenotapplicabletoothertypesofgeartoothdeteriorationsuchasplasticyielding,scuffing,casecrushing,weldingandwear,andarenotapplicableundervibratoryconditionswheretheremaybeanunpredictableprofilebreakdown.Thebendingstrengthformulaeareapplicabletofracturesatthetoothfillet,butarenotapplicabletofracturesonthetoothworkingsurfaces,failureofthegearrim,orfailuresofthegearblankthroughwebandhub.ISO6336doesnotapplytoteethfinishedbyforgingorsintering.Itisnotapplicabletogearswhichhaveapoorcontactpattern.TheproceduresinISO6336provideratingformulaeforthecalculationofloadcapacity,basedonpittingandtoothrootbreakage.Atpitchlinevelocitiesbelow1m/sthegearloadcapacityisoftenlimitedbyabrasivewear(seeotherliteratureforinformationonthecalculationforthis).
【中国标准分类号】:J17
【国际标准分类号】:21_200
【页数】:120P.;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforNickel-Iron-Chromium-MolybdenumAlloy(UNSN08320)Plate,Sheet,andStrip
【原文标准名称】:镍铁铬钼合金板、薄板及带材标准规范
【标准号】:ASTMB620-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:镍;铬;薄板材;板;合金;钼;带材;铁;配件
【英文主题词】:strips;fittings;iron;chromium;nickel;alloys;molybdenum;plates;sheetmaterials
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_150_40
【页数】:4P;A4
【正文语种】:英语