黄片在线看免费啊啊啊,亚洲VA视频在线,高清无码免费成人毛片

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

婷婷亚洲大片无码_无码AV在线免费观看看_中日韩AⅤ免费看_亚洲黄色电影在线视频免费看_黄片免费观看视频区_911精品一区二区三区_欧美色区亚洲色图少妇熟女_欧美高潮喷水人妻爱无码_日韩一卡在线视色_瓯美亚洲黄色日a级黄 A级毛片高清免费视频_日韩电影免费在线观看中文字幕97_日韩欧美另类在线播放_无码视频导航五月天成人在线_日韩无码第七页夜夜伊人_色窝窝av无码一二三区_久久六月婷婷黄色三极网_超级美女最性感的AA片_欧美亚洲日韩国产尤物_超碰色播免费在线 国产精品自拍网看一级黄片_日韩欧美黄色电影儿_一区二三区四区视频_欧美激情中文成人操在线视频_国产青青99一区TS福利_欧美成人色区导航片av_特级黄色影院观看_国产精品免费无遮挡无码永久_岛国性爱一区二区三区_高跟丝袜av免黄片视频 在线播放无码高清_国产wwwxxx_亚洲美欧日韩无码_五月天青青草在线免费视频_a级黄在线免费观看_超鹏在线国产网站日皮_日韩护士AAAAAAAAA片_中日韩特浪1级特黄免费视频_91AVwww青青草无码Av_亚洲人妻中出精品 97福利视频免费在线观看_岛国精品女人av_99精品综合图区_欧美日韩二级片大全_免费一级黄色毛片_日韩无码中文网站_青青草免费AV在线网站_亚洲中文字幕第三页_91素人在线视频_午夜亚洲精品视频免费在线 日韩有码aU欧美日内黄_亚洲无码手机播放一区二区三区_伊人精品免费国产精品s_伊人日韩AV一级A片AAA_在线xx69国产无码性爱片_日韩色色图片色爱精品_a级日韩美干女人逼毛片_97人人操,97人人摸_成人网中文日本电影_久久久久亚洲无码AV尤物黑人
AAAA一级成人无码片 一级婬片A片AAAA毛片A级 一级无码毛片基地 无码AV日韩一道 亚洲伊人成视频在线观看 一级按摩Av黄色aa大片
日本人妻一区二区三 五月停停基地免费观看黄免A 五月网婷婷在线A级性视频 亚洲成人影片精品在线免费 性情视频网页三严二十一级片 人人操人人插人人爱
特黄一区二区免费看的黄色网 91人人操超碰国模视频吧 国产高清在线一区二区三 黄片一级在线免费观看 亚洲丁香一区久久人人蜜臀 男生强奸女生的免费观看视频国产
泛站蜘蛛池模板： 免费黄色三级片日韩色情| 天海翼无码在线久网址| 91视频黄久久久| 五月婷婷之国产天堂福利| 人人操综合在线AV人人干| 草免费视频a一级片免费| 欧美成人电影在线观看| 性爱短片免费性爱| 亚洲精品国产精品国自产网站 | 欧美黄片视频爱香蕉,人人网| 成人永久免费视频08| 亚洲超级黄片看一极特黄A片| 花免费观看大全,成人黄色一级片| 亚洲日韩字幕中日韩一级无码| 无码区免费看一级毛片A片| 成人午夜激情一道本中文| 亚洲第一AV久久爱99| 91三级片网站| 欧美高清视频一区二区三区四区| 在线久草欧美亚洲图片二区| 亚洲第一影院视频字幕| 亚洲色情网站大全免费黄色片| 欧美视频第一页精品| 亚洲AV资源网| 97在线观看无码精品| 无码成人网站操人视频免费| 婷婷网五月天操人人人人操| 成人电影a片在线看| 日本欧美添泬无码| 黄色另类欧美性少妇| 无码A∨日韩额去干在线视频| 黄片无码在线观看视频一区二区三区| 日本最新a片在线观看| 亚洲日韩精品在线播放| 福利成人刺激视频| 性爱网站欧美色图中文字幕| 欧美另类制服丝袜在线| 性感护士丰满AV艹| 永久免费精品二区三区| 欧美aaa精品一区| 一本色道久久综合亚州精品|