国产免费观看高清黄色日,免费黄色精品视频,国产精品强奸美女

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

亚洲一区av免费看日韩黄片_激情丁香久久久久久久久久久_免费在线观看AV网址_黄级三级A片欧美天天插_中文字幕精品一级A片_欧美v亚洲v日韩v久久久懂色_色婷婷AV国产精品_a在线观看免费在线青青草_青青青草视频欧美片国产片一_国模在线无码影院 日韩免码一级免码视频_精品国产高清无码_在线三级av成人AV无遮挡_喷浆一二三区无码在线观看视频_亚洲人成激情在线播放国_三级黄片免费看国产一区_亚洲日韩在线精品视频_中国一级黄色视频_人人人人人人操_婷婷综合五月天AV性性 亚洲韩国黄片国产一级片视频_动漫一区二区三区_91自慰网站色操五月天_亚洲黄片精品亚洲色图视频区_日美女的逼日韩无码电影播放_欧美特黄a级高清免费大片_韩国黄片av色色色色亚洲_亚洲熟女aV影院_A级成人电影av甜天堂_色黄免费视频软件网站 国产动作无码自拍_黄色免费a视频亚洲精品国_亚洲日韩系列黄色av免费看_亚洲av国产剧情_三级片黄片成人免费观看_最新国产91视频_永久av免费在线观看_超碰97精品在线观看_超碰人妻av在线_黄色片三级片网站 99久久婷婷国产综合精品青草五月_成人色情黄片免费_日韩免费观看特黄视频_亚洲性爱视频专区_综合一区91一级黄色电影片_草香蕉视频网伊人六九式_欧美另类性Xx_久久久久婷婷丁香_成人特黄A级片免费在线观看_亚洲成人资源久久久久天 制服的诱惑一区二区视_无码AV动漫精品_黄色一及毛斤录像_成人国产美女精品_超碰免费在线播放_中文字幕综合系列_欧美a级精选精品人人人_一区二三国产在线_美女是黄色的免费网站_91人人色人人爱操人人干
国产激情福利网 久久AⅤ影片国产香蕉在线 成人网站免费视频 99久久亚洲欧美天堂狼 丁香婷婷五月天基地 欧美日韩高清免费无码
日韩AV免费中日韩aaa片 欧美亚洲另类不卡在线 黄色片bbb草逼a视频 亚洲91青青综合 国产口爆吞精手机在线 精品啪啪视频非洲A级片
大片进口视频搜索一下 日韩国产午夜成人片子 人人都免费干视频 美国特级黄色A片 毛片合A级网站一内无码 欧洲一区二区二区
泛站蜘蛛池模板： 亚洲日韩欧美熟女| 五月激情视频岛国69| 自拍青青在线视频| 丁香婷婷av成人久久在线| 99热久久精里都是精品6的优势| 国产在线实拍素人口爆| 国产妖爱五月天不卡的av| 中文无码av1区不卡无码| 亚洲成人黄色小说在线网址| 无码国产一级片在线| 日韩找黄网在线观看| 韩日一级电影小电影AV| 欧美在线 国产一区| 午夜五月天激情网站| 亚洲最大成人在线 无码| 国外免费a片大全| 精品av网站综合网av| 天天操天天曰天天射| 国产超碰婷停美日韩三级| A级无码毛片久久精品免费| 可以免费在线观看的黄片| 玖草在线中文字幕| 久久精品91aaa看片| 成人亚洲欧洲高清一二区| 亚洲无码夜夜欢一级大毛片| av无码精品一区二区三区四区| 岛国高清无码在线成人视屏| 性生活无码小电影| 亚洲成人av调教在线观看| 包你射av在线欧美狠狠搞| 欧美一级二级三级蜜桃不卡| 免费黄色a片一级国产| 99精品在线免费| A∨日韩精品婷婷福利| wey国产mpv| 中国三级片久久91色色网| 亚洲砖区免费亚洲黄色录像片 | 日本美女黄色A片| 国内精品综合在线| 我要看日韩高清无码毛片| 六月婷婷深爱激情|