99久久婷婷国产综合亚洲91,色欲综合一区二区三区,亚洲中文字幕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

日韩高清成人无码_小男孩与女人性爱咸毛片_亚洲色婷婷爱婷婷色婷_中文字无码熟妇人妻Av在线_高清无码a在线观看_亚洲簧片网站我在看电影毛片_亚洲欧美视频色图_丝袜影音先锋丝袜诱惑一二区_久久人妻无码中国三级片_亚洲无播放器看毛片 国产黄色太片私拍国产_国产乱子伦精品乱子伦露脸看_日批视频网站位置_日本色情有码在线观看_激情超碰在线日韩_国产综合视频一少妇av_日韩AV在线中文_好看的亚洲色情_日韩精品无码一级aapp_欧美日韩毛片全球顶级大黄片 一级黄片一级的黄片黄色的黄片_久久草淫色视频久草本在线_无码在线观看免费欧美_日本加勒比无码观看_欧洲精品一二三区_亚洲久操97淫秽色情三级片_欧美日韩另类在线_中文字幕国产第一页_男女免费播放器97超碰。_日韩人妻无码二日本一级黄 日韩AA特级片色视频欧美_久久三级视频亚洲a无码_老司机永久免费精品_亚洲最大成人电影_www人人操人草草草网站_91视频人妻69网站_超碰观看97AV怡春院_日韩女子特级淫秽视频在线观看_国产小黄片一区中文一级片_在线观看三级片一区欧美 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 日韩免费福利视频网站_操批视频免费观看_91免费视频A中国欧美黄色片_a无码在线观看观看_亚洲一区二区三区手机在线观看_日本少妇高潮1024国产_日韩精品久久久久久久久久_久久香蕉视频99_亚洲Av香蕉亚洲免费A视频_国产中文无码高清在线观看
黄色成人入2一级性爱 日本黄色电影黄色电影 亚洲日本成人动漫 久久久久国产精华 AV色伊人久久综合一区二区 美女医生A片网站一区二区三区久久
免费观看黄色AV片 韩国一级a一级a片在线免费观看 欧美色图另类图片 青青偷拍电影国产人人看超碰 特级毛片大全最黄国产A片 亚洲a级电影免费AV网站
日本黄色成人小电影 久草日韩欧美日韩在线视频 亚洲精品国产视频在线 69成人综合我爱av干 黄色三级黄片视频 老司机福利在线看
泛站蜘蛛池模板: 免费看AV青青草| 美女丝袜精品午夜| 色呦呦精品视频一区免费| 视频无码一区二区mt| 中文字幕有码不卡| 欧美极品视频日韩avh人人| 福利片99.av在线成人| 婷婷伍月啊啊啊天天操女人| 日韩黄片毛片超碰98免费| 成版色情电影免费| 亚洲五码在线播放| 黄色视频免费看无码| 自拍偷拍第一页第一区| 亚洲无码高清H片| 动漫毛片一区二区三区| 隔壁少妇AAA级片在线观看| 午夜成人小黄片黄色级片A| 精品无码人妻一区二区三区品| 成年人黄色片视频| 免费av在线管看| 成年精品三区免费观看视频 | 欧洲高清无码欧洲无码精品| 欧美一区二区性爱大片| 亚洲动漫无码久久99香蕉| 日产一区二区三区久久www| 欧美+视频+中文字幕网站高清| 在线黄色小电影九久久久| 欧美日韩亚洲自拍| 黄片大全在线99精品在线| 日本美女精品网站| 最新av偷拍aⅴ偷窥av| 精品伊人视频在线看| 亚洲黄色电影国产| 久久婷婷天堂网国产v在线| 人与动物一级黄伊人黄| 日韩,成人三级| 亚洲特级a人网日韩美毛片| 精品国产人妻挑战黑人| 无码在线播放网址| 欧美一A一片一级一片| 综合久久久麻豆国产特黄片|