日韩在线播放视频有码,亚洲午夜精点人人操AV在线,导航500导航熟女

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

亚洲高清无码专区_亚洲一区二区三区v无码_成人做爰黄A片免费视频网站一_日韩成人免费亚州AⅤ视频_欧美成人视频三级_中文免费久久Av网站人人看_午夜AV高清无码影院_手机看A片视频天天草AV_一区二区三区三级片a级_爱AV免费在线播放 国产成人精品片在线播放_黄色的小视频在线观看免费_婷婷五月天黄色亚洲夜夜欢_亚洲第一第二视频专区_国产A级网站日本性一级_亚欧另类无码青青草色情AV_日本久久人妻一级电影_操美女视频一区二区_欧美曰韩性受一区A V片_在线毛片不用播放器看 精品无码无码无码_免费AV在修三级片网页_无码国产精品一区二区高潮久久_韩日天堂AV免费观看_99久久99这里有免费费精品_精选性爱视频在线播放_蜜桃91av久久久_福利导航VOD第一福利关键词_中文字幕有码人妻二区三区_成人色情黄片性爱综合区 超碰人人人人人人人人人操_免费黄色影片入口_黄色大片一级日韩久久婷_色情欧美一级A片在线观看_91在线99爱AV导航_欧美激情性爱网站_最新黄色av色播AV_免费在线观看AV黄片_成人三级片网站日本黄色录_成人特级毛片全部免费播放 欧美人兽一区黄色特级片网站_蜜桃熟女一二三区!_国产黄片人妻精品一区_黄色美女美女黄色黄色黄色_中文精品一区二区三区不卡免费_看看美国的特级毛片_国产精品高潮呻吟久久AⅤ无码_天海翼成人网址在线观看_国产资源在线一区_手机看美国成人特级黄色视频 a视频在线看色美女在线_超碰97在线日韩_日本看片自拍自拍自拍自拍_岛国av成人小电影_a片欧美在线观看_无码中出连续合集一区二区三区_加勒比成人网站_日韩欧美大片免费中日三级片_亚洲色情电影网A片小视频_成人Av中文字幕
在线免费av网美乳伊人 av中文字幕导航 老福利 导航91爽爽 国产日韩无码视频 五月丁香婷婷久久亚洲 精品一区精品黄动漫在线观看
好看热AV网在线 日韩av一区二区图片 黄色一级免费日韩A级 殴美黄色三级片 播放黄色一级大片 日韩美女毛片国产男女xx
日韩一级Av毛片 午夜福利90黄在线免费观看 日韩色情中文婷婷av综合 一级黄色片成人观看视频 日韩无码一区第一页 99一级性爱毛片
泛站蜘蛛池模板： 国内外一级黄色小视频| 国产av日韩AV一区二区三区| 日韩Av毛片毛片一级片簧片| 不卡av中文字幕| 日本成人黄色电影在线免费观看| 日韩特级黄片亚洲男人99| 一级黄片观看完整版| 日韩一级A片美女18黄片| 无码A片免费播放| 永久不卡av无码| 99自拍偷拍网亚洲色图吧| 久久久久高清无码色色色| 亚洲性无码在线观看| 性交无遮挡实战电影| a级黄片完整版免费在线观看| 亚洲香蕉视频免费在线| 亚洲日韩人妻电影| 性导航无码在线观看| 免费观看黄片电影| 亚洲一级高清毛片| 日本三级无码a久色福利| 久久亚洲破解一区二区三区四区| 黄色成人电影免费在线观看 | 无码一级a免一级a做免| 亚州aaa黄色小视频在线观看免费| 看一看亚洲在线观看免费一大黄片| 国产无码自拍三级| 尤物少妇一二三区a片| 日韩A级毛片高清无码免费| 黄页小说在线免费观看| 超级好看黄色一级视频| 成人免费两性视频网站| 加勒比精品福利视频| 这里有免费精品视频| 啊啊啊啊啊国产免费观看| 日本免费高清久久| 青草青青在线视频观看| 人人操在线新久久人久久| 黄色一级视频免费在线观看| 国产精品久久久久免费Aⅴ| 美国黄色大片黄色av地址|