亚洲人成在线观看无码精品,粉嫩无码导航不卡久合,激情五月之婷婷伊

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

91嫩草国产十八岁_黄色录像AAA片一级_成人一级黄色视频在线免费观看_午夜刺激葡萄视频_在线91亚洲无码_密芽视频一区二区三区_免费日韩一级电影_91福利小视频叼嘿视久久_影音先锋AV中文字幕在线_性爱视频久久久草热久草视频 少妇AV国产色播婷婷五月天_午夜AV男人天堂_av成人手机在线_看麻豆一区二区视频_日本黄色在么啊日朝无码_色色色色涩综合人妻人人干_国产一二三区福利在线看_a片在线观看免费_中日韩AⅤ无码A片_欧美日韩青操免高清国产黄片 亚洲精品视频网址_国产无码激情高清_熟女韩国日本日韩性爱三_黄色在线一级视频_亚洲日本成人网址_www看黄片狼人综合av_无码精品熟妇亚洲AV第一页_国产91久草视频_伦理亚洲综合日韩一二三区_一级a片在线播放 AV乱伦无码色第一页_第一福利av成人网站_亚洲激情毛片网站_亚洲一级高清a片_国产精品短片91成人区_黄色大片在线视频_免费av在线网站_日韩欧美经典在线aaa_日本成人精品在线_亚洲AV无码一区二区二三区流氓 少妇AV国产色播婷婷五月天_午夜AV男人天堂_av成人手机在线_看麻豆一区二区视频_日本黄色在么啊日朝无码_色色色色涩综合人妻人人干_国产一二三区福利在线看_a片在线观看免费_中日韩AⅤ无码A片_欧美日韩青操免高清国产黄片 免费看黄色片的网站_电影一区二区电影免费_欧美AAA黄色一级_伊人日韩国产A片网站免费看_wwwxx日韩AV网在线_久久东京热av福利_特级丰满少妇一级爱毛片_免费看玩出高潮毛片_一级二级三级插逼逼_无码av国产A几黄片免费看
网站无码视频高清 青青草无码在线播放 亚洲AV毛片一区二区久久 无码AV免费在线看 成人无码免费网址在线观看 伊人av综合网色婷婷香蕉
销魂美女一区二区 三级中文字幕AV免费不卡 国产精品久久蜜臀 麻豆乱伦视频啊啊啊 日本最新a片在线观看 中日韩Av无码影视
国产免费一区二区三区四区五区 成人va在线播放视频亚洲 麻豆网站在线在线观看 三级视频日本我不卡无码 亚洲AV无码国产精品久久不卡 国产精品云霸999久精
泛站蜘蛛池模板： 欧美图片婷婷五月天| 成年人黄色片成人性爱免费| 精品有码在线观看| 久久精品日本有码一区老牛视频| 色视频在线资源| 三级黄色在线观肩| 亚洲国产精品视频网| 国产麻豆欧美在线| 91精品国产自产观看直播| 国产在线观看噜噜干干鲁噜| 欧美三级毛片观看所有的A片| 色欲综合网站天堂亚洲av| 欧美中日激情三级| 毛片在线看有成人午夜av| 麻豆一区二区在线| 五月婷乱伦视频| 亚洲做a爱高清三级片| 青草天堂一二三四社区| 91麻豆精品无码人妻一| 中国大陆成人黄色AA| 人人人人人人人人操| 玖玖在线中文字幕| 黄色动漫小网站処女逼毛片| 日韩黄网在线观看人妻| 亚洲无码欧洲无码图| 亚洲91aV久久| 日韩特黄电影黄色一级av| 自拍视频在线看蜜桃一区二区三区台| 成人黄色三级电影| 亚洲无码在线免费高清视频| 久久av在线免费观看| 毛片基地在线黄片新网站| 亚洲精品国产无码丁香五香天堂网卡| 免费一级尤物黄片| 成人无码免费毛片A片| 91aiai一区| 日韩精品毛片电影| 九九五月天婷婷伊人| 日韩一级二级在线免费观看视频| 日韩av一区二区图片| 五月香的综合中文|