中国aV在线色电影三级片,强奸三完整一二三区,国产十六区视频超碰在91

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

成人免费动漫无码高清片_一级黄色无码高清毛片视频_日韩美女久久一区_一级黄色毛片91视频播放_911在线无码精品入口动漫_日韩黄色片免费看_91人人香蕉视频_亚洲日韩天堂性爱_日本福利视频一区二区三区_国产黄色A片在线观看 中日韩一级A黄片_国产精品成人AV在线不卡_欧美视频色网亚洲一页水蜜桃_AV无吗在线观看一区_91久久蜜桃人妻一区二区三区_日韩欧美精品区视频_A片在线视频免费观看_小黄片视频播放器_成人色情一区二区无码_日韩一极黄片视频播放 黄色外国大片一级_中文成人a片人人妻操人人_免费看毛片在线色婷婷一区_午夜激情乱伦美国潢色A级片_av大全免费在线看_黄色视频网站久久网_五月开心色播最爱无码_欧美男女在线自色精品视频_欧美洲黄色大片三级片_黄色三级片网址 日本女人色性在线播放_AAA级片在线免费看_色吧欧美与亚洲成人噜噜_国产精品一二三区!_国产原创在线播放_无码流出网站五月天婷婷小说_亚洲天堂导航一区_99精品国产一区二区三区四区_日本男人一区二区三区_澡人澡人澡人澡人!澡人澡人 国产日韩一区二区搜索_成人免费黄片综合_欧美综合图片久久_久草视频免官在线观看_中文无码艹逼激情_国产伦理无码大片_在线观看亚洲香蕉视频_一区在线视频勉费日韩无码_亚洲综合精品1区_成人性爱视频在线观看无码高清 全国最大美女福利在线_日本加勒比高清久久_9999国产小视频_日韩欧美精品在天海_老人撸撸视频在线_日韩情色国产A8_91无码人妻精品一区二区三区蜜桃_亚洲中文无av字幕_婷婷91欧美777一二三区_欧美日韩亚洲第一区视频
亚洲日韩爽爽曰韩Av 人人爱人人操婷婷五月 欧美黄色在网站观看 久久久国产成人a视频 另类无码中文字幕 人人爱人人爽视频
五月丁香婷婷色色网 国产欧美精品AⅤ在线 国产色情电影97超碰人妻 日韩无码精品视频免费观看 美女黄色一级综合影院久久 欧美成人黄片免费观看视频
美国一级A片性欧美大片 日本无码欧美高清 久久黄色免费三级片 AV在线免费试看 国模私拍在线观看视频 成人免费簧片97色色爱
泛站蜘蛛池模板： 欧美激情性爱免费看| 91蜜桃人妻乱伦无码| 中文字幕第112页| 毛片在在线观看。| 一区二区在线播放视频| 日本精品熟妇亚洲伊人AV网| 亚洲日韩欧美裸体性爱| 国产av福利电影| 亚洲色图无码专区| 欧美精品激情亚洲AV影视| 亚洲国产精品免费播放| 岛国成人无码视频| 亚洲精品国产无码丁香五香天堂网卡| 国产二三四区欧美色图综合| 爱搞狼性成人在线观看| 久久久国产精品黄片视频| 丝袜网站91操人人操人人舔| 欧美一区高清少妇69xx| 韩国成人影片无码| 91婷婷精品国产综合久久| 二区五区九区视频| 超碰中出欧美在线| 国产精品无码免费专| 极品少妇性爱中文二极片| 成人免费高清无码在线视频| 在线挑逗5级片婷五月激情| 蜜桃久久亚洲精选| 欧美黄色动作人妻一区二区污| 国产成人无码AV| 精品无码一区二区三区天香| 被射了在线成人无码长视频| 黄色免费久久AV网站| 色欲综合视频国产一级特黄片| 日韩精品导航在线观看| 久久三级国产超碰最强AV| 精品無碼四季A级卡观看| 国产大片超碰亚洲区AV| 男女爱爱福利看免费A片| 少妇人妻Av八国产日本视频| 91超碰人人澡黄色国产一级片 | A级成人免费看无码|