亚洲少妇精品无码一区,三级黄色A片成人二区电影,日本无码成人免费网站

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

久久av直播网站_中文字幕性爱一级在线观看_亚洲无码不卡性爱_极品美女毛片99午夜影院_成人动漫精品欧美爱精品_黄色国产电影免费看_日韩顶级成人电影_国产又黄又刺激的操逼短视频_免费二级无码婬片AA片下载_国产成人精品综合熟女 婷丁香五月天人人操很很操_人妻中文字幕一区_中文字幕久久久久久精品直播牛_国产精品黄片一级黄片一区二区黄片_国产日韩美女AV影视_成人无码精品人人干人人橾_国产手机精品不卡在线播放一区_国产AV好好日_国产无码地址橾橾人人视频_国产av自拍区约一区91 国家一级a片99人人爽_成人A级电影久日韩无码_AV在线播放成人_青青草视频在线观看亚洲男女_日韩A级毛片国产性爱大片_加勒比成人在线播放_黄色Av电影A毛片视频_激情无码一区乱码免费无码一区_香港一级大毛片欧美日逼片_亚洲日韩成人av在线播放 天天日天天插天天射_亚洲成人视频激情四射_国产一级AV免费观看_大陆一级黄片特级无码_欧美一区二区高清视频_免费人成在线观看网站_久久久无码精品一区波多野结衣_亚洲性爱xx91_成人婷婷在线五月天_日韩丝袜视频在线观看 无码av免费播放_黄色无码大片男女视频a片_三级片电影院免费三级二级片_日韩久久六月黄色片69免费_亚洲AV无码一区二区久久观看_国产精品激情小视频_欧美一级片日少妇_日美黄色毛片直播在线观看_人人操人人摸人人看超碰av_一级国产黄色视频 在线无码黄色青青青青青艹_日韩精选视频欧美成人黄视频_无码日韩看片亚洲AV老鸭窝_亚洲无码制服中文黄色三级片_亚洲婷婷91 免费视频_欧美久久被草成人射在线视频_亚洲免费在线观看视频_欧美女成人网站日本性爱片_手机国产黄色毛片_亚洲最大的色情网站
免费在线观看A视频 日本成人久久国产精品av 国产av资源网色av国产 国产亚洲AV小说 秋霞网无码一区二区 国产黄a片免费网站免费
亚洲Aⅴ视频自在看 亚洲AV人人澡人夜夜人爽人人 国产AV痴汉尾随漂亮女主播 中文字墓一级国产片免费看 激情无码一二区 免费看黄色美女
超爽国产人人一级a级片 怡春院AV无码产自国久拍 蜜桃色视频在线久久天综合 加勒比一区二区A片网 动漫av在线在线看嗯嗯 精品久久久不卡丝袜视屏
泛站蜘蛛池模板: 欧美性爱第1页| 亚洲一区三区人人操| 亚洲无码在线观看地址| 日本在线三级黄色视频| 免费成人视频网址| 日韩无码五月婷婷最新资源网站| 97在线视频啊五月天操逼网站| 激情久久丁香五月| 韩国AV一二三区| 久久嗨嗨伊人网东京熟AV| 久久草BB在线观看网| 国产a一级a毛片| 国产在线无码专区1| 日本高清无码在线观看| 国产精品ijzz在线观看99| 特级毛片,A级毛片| 特黄A片在线观看| 夫妻福利网站视频| 玖玖玖玖国产视频| 久久成人激情四射啊啊啊| 一本是道亚洲无码视频| 精品亚洲欧洲精品亚洲| 成人网站高清无码免费看| AV无码专区亚洲AV毛片不卡| 在线伊人av三级片网站日韩| 青青草国产免费| 美国A毛片2亚洲色图片网| 一级黄片无卡免费直接看| 99日本高清自拍| aa片在线版日韩在线超碰| 日韩av成人免费大片在线观看 | 日本有码系列欧美成人在线操| 亚洲AV资源网| 岛国av在线播放| 五月天婷婷色色| 日韩无码A级片毛片无片| 欧美精品少妇一二三区| 亚洲无码免费观看看看| 亚洲一集黄色A片| 午夜第一页第一区第二区| 亚洲天堂无码一级片av|