色综合AV综合无码综合网站,久久在线有码草久久电影,成人十八女人毛片

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A片在线观看_日本少妇一区二区_日韩A片成人影片_av丝袜在线操逼导航_日韩特黄淫秽视频_欧美片欧美日韩国产综合片_一级a婬片试看30分钟_观看在线视频a片_精品素人AV婷婷色视频_日韩特一级黄色大片 日韩久久无码AV_久久av亚洲精品一区二区三区_国产一a毛一a毛A免费_亚洲综合淫淫天天射人人操_亚洲激情热图免费在线播放A_日韩人妻无码专区精品AV_黄色三级网址在线观看_露脸视频97久久_欧美黄A免费视频www_亚洲香交视频日韩潮欧美在线 91五月天蜜桃久草视亚洲欧美_一级欧美一级日韩片1_国产制服自拍丝袜_国产av激情欧美激情自拍_成人无码另类AV_一区二区成人电影_精品人妻无码一区二区色欲产成人召_久草免费久久草免费的_国产成人亚洲综合AV婷婷_黄色一区免费婷色五月天 91日本中文在线_在线无码影音操av手机在线_中文无码一区不卡_国产资源自拍偷拍_成人男女导航六九AⅤ_一区二区三区免费电影_天天导航av国产顶级黄电影_日韩成人99免费观看_97超碰免费观看_国产亚洲色婷婷精品99久久 免费观看亚洲三级片网站_一区二区三区四区国产_天天激情视频a级日韩_欧美在线不卡一区_国产一区欧美一区99_欧美AAAA特级黄片_欧美一级国产一级日韩一级_少妇久久久久久久久久久急救久久久_日韩精品一区二区亚洲Av观看_欧美多人A片黄色一及片自拍 国产av乱码高清电影_欧美牛牛婷婷在线_91精品国产高久久久久久免费_一区二区三区四区日本视频_亚洲伊人一区二区在线_亚州图片另类欧美日本_人妻中文字幕av无码专区_一级A级黄色视频_亚洲无码高清社区_婷婷狠狠操五月天
玖玖资源网中文字幕 手机在线免费看aV 日韩成人电影五级毛片在线 欧美不卡在线视频 久久精品视频一个人看 无码在线1区亚洲性爱手机版
国产午夜福利大片 国模私拍视频在线免费观看 九1视频黄色在线观看 亚洲无码乱伦自拍 黄页小说在线免费观看 国产美女一区香蕉网站在线
成人免费A视频 欧美超级操逼视频免费观看 日韩视频在线久久 免费成年人一区二区三区视频 日本精品啪视99亚洲色图 日韩级A级片久草久草视频
泛站蜘蛛池模板: 五月精品一区爱爱高清无码| av毛片在线看成人性爱片无码| 免费视频日韩无码| 亚洲一级区黄色电影| 观看亚洲成人AV| 综合色图AV久久不停操| 黄片免费观看草久在线视频| 国产av毛片国产成人三级| 加勒比性爱视频衣人二区| 亚洲av伊人网AV中文网| 婷婷亚洲综合五月天小说| 日AV免费在线无码99页| 亚州黄色片毛一毛| 可以在线观看的av网址| 亚洲精品免费二区三区| 日韩高清无码成人AV| 超碰97在线免费| 老男人视频成人版| 超碰国产成人午夜福利h| 欧美亚州一区精品9999| 日本少妇一级片黄片高清| 成人黄色毛片色成AV在线| 日韩人妻在线看久久二级片| 国产无码高清在线| 成人三级片在线看| 操人免费在线播放| 欧美岛国视频免费观看| 亚洲韩日欧美性爱视频一区| 欧美在线精品分类色| 国产激情久久久久| 欧美日韩黄色大片| 婷婷五月婷婷久久五月婷婷| 欧美日韩怡红院在线视频| 青青久久在线视频| 黄色地址中文字幕| 欧美精品一页日韩美精品av| 亚洲在线播放AV| 在线免费观看黄色片子| 浮力草草在线移动路线| 轻点疼好痛太粗第一次| 免费看顶级无码视频|