久操Aⅴ在线伊人激情网,日韩美女视频一区,免费在线观看成人不卡av

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

黄片免费试看成人一级_啊啊啊啊啊在线观看_超碰人人人妻网页_亚洲五码五月欧美性爱第一区_俄罗斯特级黄片视频_国产激情久久爱久久在线_欧美A片观看欧美a级黄_久久久久亚洲AV无码专区喷水_国产成人精品AV_性爱无码在线观看视频 国产亚洲视频在线播放香蕉_免费AV电影中文字幕_亚洲第一二三四区_亚洲AV,AV在线_午夜久久天堂啊啊啊AV啊啊_青久在线观看一二区美女视频_日韩欧美一级免费观看_中日韩AV片永久免费毛片_草草影院限制欧美_av上一页亲亲久草av 成人一二三级视频_亚洲免费在线无码视频_亚洲图片欧美电影_性色av免费观看_A级片国产精品视频_中日韩成人免费在线视频_亚洲色图25p久久久久草_久操免费观看完整版_国产区在线播放视频_免费一级在线观看视频欧美 91成人无码精品在线地址_亚洲性爱视频国产一级_涩五月亚洲色图天天色无码_亚洲国产第一高清区_伊人超碰在线93_特级毛片裸体美女免费_婷婷社区丁香五月天_成人手机黄色无码电影_yazhounannanav_超碰手机在线免费观看不卡 一级特级视频免费看_日本国产欧美停停五月天激情_一级成人电影免费_亚洲无码成人影视_无码一级性爱日本黄色片毛一_91成人在线免费看_亚洲欧美精品国产特一级在线_少妇一级婬片免费放播_桃色播播成人av久久付力_欧洲av在线日韩有码理论片 91亚洲午夜精品久久久久久_成人小视频看看黄片毛片_在线观看韩国日本国产黄色片_日韩久久精品av久草_免播放器一区二区_97人妻碰撞国产啪在线_查找日韩三级片网站_日本com久久福利久久久_av有码在线三级黄色视_色色资源总站日本精品中出
成人va在线一区二区三区 欧美日韩成人免费电影 中日韩好看的黄色电影一级片免费 大胆无码中出视频 超碰牛牛福利导航 色悠悠网站在线观看
超碰成人图片亚洲人人操 黄色一级曰逼片亚洲A精品 一本本久久a久久综合 强奸日本美女午夜片 黄色A级视免费观看 成人免费视频18
a级毛片在线视频免费 日本电影摩擦一区二区在线观看 人人舔人人操人人爱 亚洲免费日韩不卡在线视频直播 绯色AⅤ久久综合 樱花视频在线播放
泛站蜘蛛池模板: 欧美性a在线观看| 无码免费在线观看小视频| 午夜夫妻福利合集玖玖综合| 久久国产精品在线播放| 日韩精品视频一二三区| 日韩有码无码23| 国产在线永久免费资源| 日韩三级中文人人亚洲视频| 国产手机看中国毛片| 黄色av网站免费| 日本一级A片成人在线网址| 免费在线观看的av网站| 黄色片欧美久久| 影音先锋 婷婷五月| 精品无码国产污污污免费网站久久| 国产性爱AV在线| 免费在线观看小视频青涩| 日本理论永久免费电影院| 成人雷射毛片美女的黄片| 国产强奸视频av大香蕉| 视频免费操逼91日韩无码| 在线欧美亚洲夜夜操夜夜逼| av尤物天堂三级小黄片| 自拍亚洲AV综合色区| 国产AV热门资源| 国产麻豆悠悠黑丝国产在线| 日本欧美添泬无码| 亚洲精品无码久久久一区| 久草美女av特及黄色片| 国产欧美在线看看免费毛片| 99久久精品一区二区三区声音的| 国产主播av久久黄色网| 亚洲天天更新视频| 黄色视频国产在线观看| 激情av一区91视频分类| 国产欧美日韩黄片儿| 亚洲色在线无码国产精品不卡| 国产1区2区国内激情91| 91黄色电影在线观看| 中文网亚洲天堂色综合| 国产精品国产A级|