2020/08/14

About maintenance of bucket teeth of heavy machinery

Duringtheuseoftheexcavator,theunsmoothuseandtheusecyclearedirectlyrelatedtoyourworkefficiency,andthebucketteethareparticularlyimportantastheforwardsthatdirectlycontacttheterrain.Sowhydoestheproblemofseriouswearofthebucketteethoccur?Howtosolveit?　Eachworkingsurfaceofthebuckettoothisincontactwiththeexcavatedobjectduringexcavation.Theforceisdifferentindifferentworkingstagesoftheexcavationprocess.Whenthebuckettoothrepeatedlycontactshardobjectsandcuts,theworkingsurfaceofthebuckettoothisdifferent.Adegreeofsurfacewear,whichinturnproducesdeepfurrows,causesthebucketteethtobescrapped.Therefore,thequalityofthewear-resistantlayeronthesurfaceofthebuckettoothanditsqualitydirectlyaffecttheservicelifeofthebuckettooth.　Recommendationsfortoothmaintenance　1.Choosingtherightbucketteethisanimportantfactorforprolongingtheworkinglifeofyourexcavatorandstrongerpenetration,becausethematchedbucketteethandtheiraccessoriesaretheprerequisiteforfasterexcavatorworkingcycleandsavingrawmaterials.　2.Duringtheuseofthebucketteethoftheexcavator,theoutermosttoothofthebucketis30%fasterthantheinnermostwearingpart.Therefore,afteraperiodoftime,theinsideandoutsideofthebucketcanbechangedorrotatedtoacertainextent.Toeaseandprovideproductivity.　3.Whenoperatingtheexcavator,itisbesttodigunderthebucketteethperpendiculartotheworkingsurfacetoavoidbreakingthebucketteethduetoexcessiveinclination.　4.Coatingtungstencoatingonbucketteethandotheraccessoriescaneffectivelyreducemaintenancecostsandimprovemachineefficiency.　Inadditiontomaintenance,thequalityandmaterialoftheteeththemselvesshouldbemoreconcerned.

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2020/07/28

The production technology of my country's building materials machinery industry is close to the world level

1.Reformandopeninguphasbroughttheindustryintoanunprecedentedperiodofrapiddevelopment　In2007,thetotalindustrialoutputvalueofthewholeindustrywas21.746billionyuan,theindustrialaddedvaluereached6.530billionyuan,andtheexportdeliveryvalueofproductswas1.285billionyuan.And30yearsago,thetotalindustrialoutputvalueofthewholeindustryin1978wasonlyafewhundredmillionyuan,theindustryproductioncapacitywasmorethan30,000tons,andnearly90%ofthebuildingmaterialsmachineryindustryreliedonimports.　2.Reformandopeninguphavegreatlyimprovedthemanufacturingcapacityoftheindustryandthequalitymanagementlevelhasgraduallyimproved　In1978,therewereonlymorethan20majorbuildingmaterialmachineryenterprisesinthecountry,with6electricarcfurnacesof3-10tons,withanannualoutputof40,000tonsofmoltensteel;annualprocessingofmorethan15,000tonsofaccessoriesandmorethan30,000tonsofprofessionalequipment.Atpresent,thebuildingmaterialsmachineryindustryhasthousandsofenterprises,amongwhichthebackboneenterprises(groups)haveimprovedtheprocessingandmanufacturingprocessesthroughfurthertechnologicaltransformations,andaddedalargenumberofhigh,preciseandsophisticatedlarge-scaleprocessingequipmentandtestingmethods.SuchasCNCcuttingmachine,photoelectrictrackingcuttingmachine,automaticweldingequipment,largehobbingmachine(maximumvertebra14m),largecylinderlathe(maximumvertebra12.5m),andcorrespondingliftingfacilities,precisioncastingequipment,overallannealingfurnace,etc.Improvetheprocessingcapacityandmanufacturingleveloftheindustry,andeffectivelyimprovethequalityandtechnicalperformanceofbuildingmaterialsmachineryequipmentproducts.　3.Reformandopeninguphavebroughttheindustry'sproductiontechnologylevelcloserorequaltotheworldlevel　Beforethereformandopeningup,theproductiontechnologylevelofChina'sbuildingmaterialsmachineryindustrywasroughlythesameastheworldlevelfornearly40years.Theonlymorethan20buildingmaterialsmachineryfactoriesinthecountrywereestablishedonthebasisofthemechanicalmaintenanceworkshopsofcementfactoriesandglassfactoriesorthepracticeworkshopsofschools.Yes,itcanonlyproducesomesimplebuildingmaterialsequipmentandaccessories,andtheproductionlineequipmentneededbythebuildingmaterialsindustrymainlydependsonimports.Atpresent,thetechnicalcontentofmycountry'sbuildingmaterialsmachineryequipmenthasbeengreatlyimproved,andsomenewtechnologiesandnewproductshavereachedorapproachedtheworld'sadvancedlevel.Domesticandforeignusershaveincreasedtheirrecognitionofdomesticbuildingmaterialsmachineryproducts,andthebuildingmaterialsmachineryindustryhasprovidedstrongsupportfortheconstructionofthebuildingmaterialsindustry,mainlyinthefollowingaspects.

2020/07/28

Reliability Data Collection and Database Establishment of CNC Lathe

1Introduction　CNCmachinetoolsarethebasicequipmentofmodernmanufacturingtechnology,andtheirtechnicallevelisanimportantindicatorofthelevelofindustrialmodernizationinacountry.ThereliabilityofCNCmachinetoolsisthekeytothequalityofmachinetools.Atpresent,thereliabilityofdomesticCNCmachinetoolsisobviouslylowerthanthatofforeigncountries,whichseriouslyaffectsthecompetitivenessofdomesticCNCmachinetools.ImprovingthereliabilityofdomesticCNCmachinetoolshasbecomeatoppriority.　Reliabilityanalysisisbasedonalargeamountoffielddata.Withthehelpofplannedandpurposefulcollectionofdataateachstageoftheproductlifecycle,analysisisperformedtofindtheweaklinksofproductreliability,improvethedesign,andimproveproductquality,soitisreliableThecollectionandanalysisofperformancedataplayanimportantroleinreliabilityengineering.However,thisaspectisaweaklinkindomesticreliabilityresearch.DuringtheperiodfromJuly1,1996toDecember31,1996,wecollectedthereliabilitydataof42CNClathesfromtheChangchunGearFactoryofFAWGroup,andinitiallyestablishedthereliabilitydatabaseofCNClathes.TakethisasanexampletoillustratethemethodofcollectingreliabilitydataofCNCmachinetoolsandthemethodofestablishingdatabase.　2Determinationofreliabilitytestplan　Reliabilitytestisoneofthemainmethodstoobtainreliabilitydata,anditisthebasisforreliabilitydesignandanalysis.Inthepast30years,reliabilitytestmethodshavemadegreatprogress.Reliabilitytestingistime-consumingandexpensive.ForCNClathes,themainconsiderationisthetestsiteandtestsamples.　Accordingtothetestsite,thereliabilitytestisdividedintofieldtestandlaboratorytest.DuetothecomplexstructureofCNClathes,therearemanyuncertainfactorsintheconditionsofuse,sotheactualreliabilitycanbecollectedbyselectingthefieldtestmethod.Datareliabilityisakeyissueinfieldtests.Acompletecollectionplanmustbeformulatedinadvance,andthedatashouldbeprocessedafterwardstoeliminateunreasonablefactors.　Reliabilitytestscanbedividedintotwotypes:fulltestandsamplingtestaccordingtosamplesize.ItisimpossibletocarryoutalltestsforbatchproductssuchasCNClathes,andonlythetestmethodofsamplingandtimingtruncationcanbeused.Inordertomakethecollecteddatarepresentativeandconvenientfordatacollection,whenselectingtestsamples,asmanyCNClathesaspossibleshouldbeselectedassamplingsamples,andtheselectedequipmentshouldberelativelyconcentrated.Therefore,thisarticlechosetheFAWGroupChangchunGearFactory,whichusesalargeamountofCNClathesandhasrelativelyconcentratedequipment,asthetestbase,andtookits42CNClathesassamplesforahalf-yearfollow-upinvestigation.

2020/10/23

The company passed the review by the expert group for the title of "China Centrifugal Casting Equipment Manufacturing Base"

The company passed the review by the expert group for the title of "China Centrifugal Casting Equipment Manufacturing Base"

2020/10/23

The company passed the review by the expert group for the title of "China Centrifugal Casting Equipment Manufacturing Base"

The company passed the review by the expert group for the title of "China Centrifugal Casting Equipment Manufacturing Base"

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