韓國 在线一区二区,aa片在线看黄片站资源,色吧成人精品东京热久久00

E-mail：sale@china-huadong.com

English  |  中文版

hddz

ABOUT US

hddz

Ruian Huadong Forging Co., Ltd

Ruian Huadong Forging Co., Ltd. is a comprehensive enterprise integrating forging, alloy die casting, mechanical machining, heat treatment and surface plating. At present, the company has five forging lines (300t-1000t), eight sets of alloy die-casting equipment (280t-1350t), thirty-eight sets of machining equipment, one line for normalizing and tempering mesh belt furnace, two full-automatic lines for electroplating (nickel and stainless steel).
The main products of the company are: auto parts series, forging parts series, alloy die casting parts series, auto trailer parts series, door closer series. There are: trailer ball, connecting rod, spline shaft, fork, swing arm, etc. Our products are exported to Western Europe, America and Southeast Asia.

 

MORE

10+

Incorporation

9001-2000

ISO

30+

certification

1000+

CLIENTS

RECOMMENDATION

OUR STRENGTHS

Based on the technical tenet of "high starting point, high technology, high quality" and the service tenet of "reputation first, quality first", the company has
created a set of high-quality products

Culture

Based on the technical tenet of "high starting point, high technology, high quality" and the service tenet of 

MORE

Network

The company's domestic sales network throughout the country, in line with the purpose of "facing customers

MORE

Certification

Our products such as trailer ball and door closer have passed IS9001-2000 certification...

MORE

Service

Please feel free to contact us!
We will serve you wholeheartedly!

MORE

NEWS

2019-12-28

1、MadeinChina2025InthereportoninvestmentanalysisandProspectForecastofChina'ssuperalloyindustryin2018-2022,CICconsultantmentionedthatinMay2015,theStateCouncilissuedthedevelopmentstrategyofmadeinChina2025,whichwillguidethedevelopmentofChina'sindustryinthenextdecadeasaprogrammaticdocument.ThedocumentproposestofocusonfivemajorprojectsandtenmajorareasaroundthedevelopmentofChina'smanufacturingindustry.Threeofthefiveprojectsinvolvesuperalloy.Amongthe"tenfields",aerospaceequipment,powerequipmentandnewmaterialswillalsoinvolvethecontentofsuperalloy,whichisenoughtoseetheimportantpositionofSuperalloyproductsinthefuturenationalscienceandtechnologydevelopmentandnationaleconomy.
2019-12-27

Intheprocessofhotrolling,theheatandheatconductionofhightemperaturebilletmakethetemperatureofrollrise.Intheopeningareaofhotrolledsectionsteel,becauseofthelargevolumeandhightemperatureoftheforgedbillet,thesurfacetemperatureoftherollincreases.Whenthetemperatureoftherollishigh,thesurfacehardnesswillaffecttherollwearresistance.Whenthesurfaceoftherollisheated,thevolumeexpansionwilloccur,butthetemperaturedifferencebetweentheinsideandoutsideoftherollwillbeformedduetotheloweroveralltemperatureoftheroll,resultingingreaterthermalstress.Aftertherollingmaterialleavestheroll,theheatconductionstops,andtherollsurfacetemperaturedropsaccordingly.Thisstatechangesperiodically,whichiseasytogeneratehotcracks.Therefore,itisnecessarytocooltherollscientificallytokeeptherollsurfacetemperatureinareasonablerange.Yongxinshengsuggeststhefollowingmeasurestocontrolrollcooling:theheattransferefficiencyofcoolingwatercanbecontrolledbymixing3%oilintocoolingwater.Thewaterpressureofcoolingwatershouldbeaslowaspossibleunderthepremiseofwaterflowdensity.Thesteadyflowofcoolingwatertotherollsurfacecanincreasethecontacttimebetweenthetwo,thusincreasingtheheattakenawaybycoolingwaterfromtheroll.Ifthecoolingwatersplashesontheroller,thecontacttimeofthetwoisshortenedandthecoolingislarge.Highwaterflowdensityinspraycoolingareacanobtainhighheatdissipationrate.Whenthespraycoolingareaisarc-shaped,cooltheparallelline.Whentheanglebetweenthespraylineofthenozzleandtheaxisoftherolleris30°,goodcoolingcanbeproduced.Thediameterofthesprayholeofthenozzleshallnotbelessthan3mm.Itisbettertouseflatnozzle.Inordertosplitthecoolingwater,thesurfacefinishofthesprayholeshallbemaintained.Itisbettertokeepthedistancebetweenrollersurfaceandnozzlewithin50-100mm.Thetemperatureofcoolingwatershouldbeaslowaspossible,anditsdegreeshouldbeashighaspossible.Impuritiesinwateraffectthequalityofproductsandrolls.Inordertoremovetheburronthesurfaceoftherollpasscausedbythewearofthescale,ontheonehand,thepressureofthedescalingmachinecanbeusedtoremovethescaleonthesurfaceoftheblanktoalargeextent;ontheotherhand,thehigh-pressureairpipecanbeaddedinfrontoftherollingmilltoblowthescaleatthewaistoftheforgingblank.
2019-12-27

Accordingtothemanufacturingprocess,itcanbedividedintocastingpulley,weldingpulley,doubleplatepressingpulley,forgingpulleyandrollingpulleyforgingpulley.Itisaprocessingmethodthatusesforgingmachinerytoexertpressureonthemetalbilletofpulleytoproduceplasticdeformationtoobtainforgingswithperformance,shapeandsize.Itisoneofthetwomajorcomponentsofforging(forgingandstamping).Themicrostructureisoptimizedthroughthedefectsofascastloosenessinthesmeltingprocessofforgingenergymetal.Atthesametime,themechanicalpropertiesofforgingsaregenerallythesameasthoseofcastingsmadeofthesamematerialduetothepreservationofcompletemetalflowlines.Intherelatedmachinery,theimportantonewithhighloadandsevereworkingconditionsisusuallyforgedexceptforthesimpleshapeofrolledplates,sectionsorweldments.Comparedwiththecastpulley,theforgedpulleyhasitsstructureandmechanicalpropertiesafterforging.Thedeformedpulleyafterhotworkingmakestherawmaterialcrystallize,andchangestheoriginalcrystalandcolumnarcrystalintothecrystalstructurewithfinegrainanduniformsize,whichmakesthestructureinthepulleytighter.Thephysicalpropertiesofthepulley,theappearancesurfaceandcoarsenessoftheprocessedpulleyforgingTheroughnessismorebeautifulandsmooththanthecastingpulley,becausetheprocesscostaccountingismoreexpensivethanthecastingpulley.However,fortheimportanthigh-quality,largecranesorothermodels,pulleyforgingsaremoreoftenselected.
2019-12-27

Whenitcomestoforgingindustry,thekeypointofthepastistoforgeiron.Peoplewillremembertheconceptoffreeforgingasthemainconceptofforging.Inthe1980sand1990s,peoplehaveafurtherunderstandingofforging,anddieforgingistherealconnotationofforging.Forthisreason,theseyearsaroundthedieforgingpeoplestartedadiscussionandinvestment.Overthepastdecade,whatnewdevelopmentshavetakenplaceinforgingindustry,asmallandimportantindustry?Forginghammer-theforginghammerhasdevelopedfromthepastgravitydrophammer,steamairhammer,liquidairhammertothepresentelectro-hydraulichammer.Themainprogressofthisequipmentisenergycontrol,strikestability,guidanceanduse.Atpresent,thereisalsoanautomaticforginghammerforgingproductionline.Screwpress-screwpresshasdevelopedfromthepastmanualscrewhammer,doublediscfrictionpresstotoday'sclutchscrewpressanddirectdrivescrewpress.Thisnewtypeofpressischaracterizedbyhighenergyandcontrollableforce.Inthepast,themainproblemistheimpactonthepowergrid.Atpresent,theproblemisbasicallysolvedbyusingfrequencyconversion.Mechanicalpress-thegreatdevelopmentofmechanicalpressshouldbeinthe1970sand1980s.Itisalsotheproductofmassproductionofforgings.TheautomaticproductionlineofpressistheideaofRussiansandtheexperimentofGermans.Theworld'sfull-automaticforgingproductionlineisinstalledintheforgingplantofDongfengMotorCompanyinChina.Inrecentyears,theproblemsofpressforginghavenotfoundacompletesolution,butpeoplehavefoundthattheextensionofpressforgingframeiscontrollable.Generallyspeaking,thepressshouldextend1mmevery10MNwhenworking.Withoutthiselongation,itisimpossibleforthepresstoachieveforging.

Ruian Huadong Forging Co., Ltd

Production address: NO.119, Chuangxin East Road, Xialin Industrial Zone, Tangxia Town, Ruian City

 

Contact us

TEL:+86-577-65365147    FAX:+86-577-65366147 
E-mail:sale@china-huadong.com

Message
We will serve you wholeheartedly

About us

profile
certificate
culture

network

Products

Forging series

Trailer accessories series

Door closer series

Die casting series

News

Company news

Industry news

 

 

Contact us

Message

Contact us

 

 

hddz

Copyright ? 2020 Ruian Huadong Forging Co., Ltd  All rights reserved.   

浙ICP備19053007號-1  www.300.cn

成人三级片网站免费_亚洲免费欧美日本在线_国内精品伊人久久网一站_台湾天天综合人成在线_免费无码又爽又刺激视频_三级黄色大片特级毛片A片_亚洲精品成人免费黄色视频网站_久草九草黄色视频大片_久久精品中文字幕_国产精品久久久免费 欧美特黄大片免费成人毛片网_欧美人精视频美女极品三级_人人操人人操人人干干日日_精品爆乳一区二区三区无码AV_一本大道日韩无码专区_成人免费无码在线视频_亚洲制服中文版av_人人爱视频在线观看_无码 在线 丝袜_99Re久久一级成年片 中国特级黄色A片_三级片视频日韩无码_A级黄片全免费看_国产精品91超碰_日韩av成人 在线播放_国产蛋播精品日韩xx××_99精品在线观看_乱伦精品福利a片新网址_欧美一级黄色A片免费观看_日本免费看黄在线看欧美伊人 黄片免费网站在线观看_亚洲自拍5区乱伦黄片免费看_黄色av免费AV无码看_国产高清视频在线观看97_日本少妇被强奸a片_一级a片在线观看免费观看_黄色三级片视频的黄色三级片_91香蕉视频呜呜呜_日本精品无码午夜福利免费看_成人黄色毛片视频 日韩怡红院在线视频_亚洲三级AV亚洲色图丝袜_日韩色情系列电影_日韩黄色3级片在线观看_东京热综合网极品香蕉_精品国产无码人妻久久_中国XXX在线视频_亚洲a级片在线观看_亚洲三级片视频网站_69AV在线91五月天 成人涩涩视频网站_国产综合精品在线_日韩黄色片在线观看_国产超清无码片内射免费_日本一级人妻A片_六月婷婷网站欧美成人黄色_亚洲精品成a人视频_成人一级黄色a片电影_丁香五月天婷婷欧美_一区视频在线法国熟女乱伦
三级黄色片人妻 最新好看黄色一级片 精品在线91就要草草在线 久久久久亚州AⅤ无码 日韩无码aV大毛片 东京热HD日本
美日韩成人黄片免费视频 开心激情综合网 免费看国产黄色视频 无马视频成人网观看 日本精品一级二级三级 日韩美女在线精品
台湾三级在线视频 日本黄色三级片 视频黄在线观看99 国产黄色小视频在线 无码 国产 在线观看 日韩成人喷水量大惊人
泛站蜘蛛池模板： 97精品一区久久人人免费| 亚洲久久无码亚洲一区二区| 免费试看黄片hp| 美国青草无码色欲婷婷| 亚洲欧洲AV免费AV黄入口| 日韩欧免费黄色三级片| 911日韩无码人人草在线| 国产高清无码A片| 日韩无码性爱视频| 免费的AV观看理伦欧美| 午夜福利视频久久91| 久久草资源在线观看| 亚洲网在线观看黄片看黄片| 青青草视频黄色成人免费| 黄片在线免费观看.| 黑人与亚洲人AV| 好看热AV网在线| 国产AAA黄色视频| 亚洲人人精品一区二区| 免费的一级黄色片| 亚洲涩涩在线亚洲爱就爱啪啪| 开心激情综合AV| 黑人heyzo无码| 亚洲超碰手机在线| 亚洲色资源网激情六月天久久| 69无码在线观看短视频| 韩日美小说av在线观看| 青青青青青青青青操| 蜜臀亚洲高清无码| 日本成人视频免费网站大全| 日韩AV片在线观看| 国产欧美日韩四季色欲| 岛国精品在线AV丝袜高跟| 毛片a级成人99久久色图| 久久无码网址性色不卡av| 国产三级片日本弄弄天天操| 欧美在线1亚洲| 在线中文av美女黄片网站| 日韩成人影視亚洲AV成人在| 日本性小电影无码高清黄色网| 色色色综合色色色综合色色色|