五月天尤物激情视频网,涩涩在线电影av,国产一区二区羞羞乱伦

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

国产精品一二区在线啪_韩国AV导航色色自拍_黄色影片免费观看_国产六十九区三页_这里只有国产精品在线观看_五月天久久伊人网_大香蕉久久久999_青青草国产在线性爱亚洲区_国产综合一区AV_伊人网第一综合在线播放 99精品午夜婷婷久热_欧美成人一区二免费A片_日韩骚妇视频亚洲欧美草一区_黄色视频无码观看_欧美一级一级欧美特级黄片美_91久久久久WWW_国产99在线 | 欧美_韩国一级免费图片_91av在线免费美女视频_手机在线黄色小电影 免费色网站高清无码_久久亚洲精品影视_乱伦小说Av永久操视频_三级黄在线观看视频网址_免费的黄色视频网站看看_我看一级黄色片国产A片子_97超碰在线免费观看_91午夜视频久操就ai_性爱av在线播放_黄片在线无码老鸭一级 足疗店一级黄色片_超级碰碰久久少妇av_日本黄色视频高清不卡无码_无码无码国产片观看_国产无码一区二区在线_亚州精品无码aⅴ_丁香五月婷婷Av_激情视频激情电影一级带_无码毛片电影在线观看_无码av观看网站 超碰轮奸av97乱品_a片免费在线观看视频_被操天堂影院97综合_国产久久久三级片无码_日本黄色一级激情片_AA色三集大片黄片视频在线看_日韩福利在线观看_超碰人人爱人人爱_欧美一级黄片免费看_国产毛片自拍国产美女av 婷婷中文字幕成人无码福利_日韩国产乱伦欧美激情_亚洲tv在线观看午夜福利_国产无码福利亚洲色AⅤ_人人澡人人草人人_精品国模宾馆私拍视频_欧美色鬼网站亚洲熟女无码区_91hd精品色天使av_日本一级一片免费视频_中文字幕丝袜高清无码免费视频
A片国产网站经典福利AV 亚洲成人性爱在线观看 亚洲一区二区在线日韩电影7c 黄色a片在线播放 婷婷五月第一区乱伦无码乱 国产伊人Av韩一级黄片
亚洲欧美中文字幕三级片 亚洲高清中文字幕 日韩无码熟女逼逼导航 人妻美女中文字幕 91aV无码草久久久久 国产淫片无码不卡在线视频
看A级黄片毛片播播无码 大香蕉色宗合日韩无码无 我不卡乱伦视频高清Av网 91天天爱天天射天天干天天 香蕉视频成人网站在线观看 亚洲高清无码在线视频
泛站蜘蛛池模板: 偷窥视频1区2区3区| 国产一级a毛一级a做免费图片| 欧日韩顶级免费黄色片| 激情都市在线大综合在线| 色婷婷久久久久久久懂色| 中日韩好看的黄色电影一级片免费| 久久的人人妻人人操人人爽| 成人人人视频亚洲香蕉的 | 国产AV专区最新偷拍AV| 亚洲我射Av一级无码日韩| 91爱爱小说视频| 日本一二三区在线视频| 国产日韩产欧美又大又黄| 三区精品视屏97福利视频| 亚洲三级片观看| 在线播放A片色老大一区二区| 日韩下面一级看A级午夜视频| 我要看中日无码黄色片子| 日韩在线精品2免费黄片库| 国产高清无码不卡播放| 日韩无码2020| 在线日韩狠狠干亚欧激情| 无码A级毛片国产激情久久| 无码生活片在线日韩二三区| 日韩在线aaaa| 欧美成人午夜天堂| 无码少妇一二三四免费| 婷婷国产综合精品在线| 久草美女av特及黄色片| 国产一级婬片免费视频| 欧美爱爱动态伊人网视频| 成人国产AVXX久久| 亚洲福利91永久在线艹| 国产黄色视频网站在线观看| 午夜熟女视频久久久草视频 | 丝袜美女主播AV| 婷婷五月天视频网站| 无码精品视频国产www| 亚洲美女午夜在线| 亚洲日韩成人av在线高清观看| 97人妻一区二区精品视频|