日韩无码AV大片一区,网址一区二区中文无码三级片,国内丝袜人妻自拍

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

538在线视频淫淫综合网_成人动漫一级黄片_国模久久免费水印私拍一区_亚洲、激情、在线_成人自拍偷拍在线视频_内射美女视频在线观看_成人视频免费亚洲_免费国产一级a毛一级a_伊人蜜桃综合无码三级毛片_亚洲成人av在线看 日本不卡一本a高清_91福利视频一区二区_亚洲妖精视频精区无码一区二_大香蕉精品熟女憋嘿网站_鸡情国产无码人人香蕉亚洲_久草久草免费免费网站黄_日韩高清不卡的aV片_国内三级毛片日韩热热热_成人香蕉视频婷婷无码专区_青青草原av网站 WWW日本成A主播乱伦_成人黄色小视频在线观看_亚洲在线播放色图无码_日韩无码黄色免费_97真人在线视频_亚洲人成人在线观看无码人_色色色色色资源站av_日韩高清无码挑适人妻_天天躁日日躁狠狠躁av无码_97超碰英美二级片黄色 久久久人人草亚洲人射精_久草免费在线播放_日本三级中文字幕_1区2区男女互搞_亚洲AV无码极品_高清无码黄片在线播放_亚洲福利AV网址_91日韩视频导航一区二区_亚洲爱x视频黄色一级片A片_日韩三级A片亚洲人人操人人 黄色高清无码在线观看的视频_成人免费A片在线播放_三区四区中文字幕_亚洲AV无码国产第一页_免费A片在线网站完整_欧美三级一级片婷婷五月色_免费的黄色视频A片少妇_9.1片黄在线观看_婷婷久久五月天噜噜噜射_中国黄色电影手机在线播放 aV新版在线aa级片_免费黄片视频高清_国产一区二区高清无码_日本韩国在线成人_国产a一级a一级a真人视频_欧美国产精品免费看黄色一级_国产高清手机无码_一不卡二不卡操三八久久_2025年最新理论片在线视频_日韩无码A级视频
青娱乐青青青草视频 国产高清不卡无码视频 美女视频黄a视频全免费观看蜜 天天日加勒比黄色国产三级片 亚洲性爱免费网站 成人黄视频在线观看
高潮AV免费在线 亚洲色图欧美激情 黄色视频在线看网站 国产视频一区二区成人动漫都市激情 国产一级黄片免费视频 真正的免费的黄色小视频网站
日本v欧美v色七七操逼视频 午夜91福利国内自拍第5页 亚洲av一卡二卡三卡 无码资源在线观看免费高清 久久91欧美人妻无码 天海翼无码视频激情网页
泛站蜘蛛池模板： 亚洲91青青综合| 永久免费的在线观看AV| 黄色视频中国操逼吃奶吃逼视频 | 性大A级特黄免费毛片视频| 成人A片性爱无码曰韩欧| 一级黄片免费试看| 色亭亭久久五月天| 国产高清无码黄片一级黄| 视频日韩有码亚洲日韩在线干| 久久久久久AV无码免费网站动漫 | 欧美亚洲日韩熟女| 欧美三区四区亚洲TS在线| 青青草国产日韩在线视频| 动漫成人精品免费正常| 亚洲欧洲一区二区三区a| 免费黄片不卡亚洲三级网| 草草视频正在热播| 岛国日韩AV免费观看| 超碰成人在线人人操| 欧美经典一区二区三区 | 成年人黄色电影| 一级黄色大片在线播放| 超碰仁仁操人人| 一级黄色视频片毛片链接| 成人视屏在线播放| 日本国产精品视频| 黄色aaa级视频网站| 亚洲精品成人无码A片在线| 最新AV网站在线看| 成人精品无码电影| 久久精品日本有码一区老牛视频 | 怡红院av 在线| 一级黄色片三级黄片| a片一级电影簧片无在线| 亚欧综合视频日本久久黄| 高肉高黄视频在线播放| 欧美伊人在线黄色丝袜日逼| 超碰97人人干人人操| 亚欧中文字幕在线观看| 草爱视频免费在线观看| 欧美一级婬片AAAAAAA牛牛|