高清无码在线观看网站视频,日本簧片在线公开超碰91,亚洲成AV人免费在线观看

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

香蕉成人AVav一起操_91精产国品一二三区视频在线观看_日韩精品一区99_97精品在线免费视频_成人AV专区三级大片网_日韩特级黄色动作片_白色丝袜婷婷五月天_国产成人精品AV片_免费av成人网站_2019最新高清无码中文字幕调教 国产经典一级片在线观看_免费看a级片视频_人人操人人爱人人看_亚州Av在线观看_亚洲,变态,制服,另类_成人免费一级视频_涩涩视频免费观看入口_日本成人电影A片_成人AⅤ精品一区二区三区_黄片大在线逼超碰人操人 成人A片免费视频_成人生活片免费在线播放_欧美色性97自拍欧美A一片_免费A级毛片在线播放_国产一级做a爰片久久毛片A_成人午夜A级黄色片_日韩精品日韩无码一区二区_台湾高清无码三级不卡视频_亚洲爆乳A片一级片视频网页_99精品视频在线观看一区二区 日本母乳精品无码_中国国产AV热东京无码_五月婷婷欧美一区_欧美亚洲啪啪视频_成在人线av无码毛片观看网站_区欧美淫乱视频久久久免费观看_色情性黄 片免费视频_亚洲精品夜间视频无码_第一毛片成人现场观看_亚洲成人AV制服师生 亚洲Aⅴ在线黄色A级片网站_黄色av一区91超碰网站_婷婷网热门视频有哪些_国产91免费亚洲_精品99久久久久成人动漫_精品久久久久久亚洲中文字幕_亚洲成人理论播放_欧美日韩国产一区二区免费视频_老年人黄色1级片_久草精品视频在线播 欧美成人综合视频_一级乱伦网站国产国模吧视频_有日本黄色视吗自韩毛片_久久久二区精品动漫_国产免费日韩床上视频久_日韩免费看片毛片网高端免费_欧美特一级AA片片_超碰12在线干人妻在线_亚洲福利偷拍视频_狼友在线一二三四五六七八区
人人骚人人操人人舔 成人黄色a片视频 无码福利视频网熟女av网 伊人色在线视频香蕉人人超 三级无码成人影片 三级片观看地址
一本精品在线色av亚洲无码 无码三级无码免费的高清黄片 日本喷射91中日韩精品二区 日韩级A级片久草久草视频 黄色a级视频播放列表 超碰91在线国产A
在线视频一区亚洲 一级日韩中无码黄片 特级精品A视频网 亚洲图片欧美另类综合 手机天堂av免看一级a一片 影音先锋看一区二区三区
泛站蜘蛛池模板： A片免费高清网站| 国产日韩影视在线免费观看| 中国AV一二三区| 亚州久干激情综合网| 极品AV电影下载| 国产又粗又大又猛又黄的视频| 3级A片免费视频| 黄片在线内射日韩旡码片| 激情性爱五月丁香婷婷| 三级片AV不卡网站| 婷婷国产在线9199精品| 中国无码视频免费观看| 黄色视频在线观看大全免费| 亚洲三级片观看| 无卡毛片视频久久午夜福利片| 日韩成人无码 高清视频| 国产一二三区在线播放| 亚洲综合国产婷婷成人在线| 国产一级片手机版| 亚洲啪AV永久无码精品放毛片| 超碰91av人人草| 亚洲黄色高清电影| 黄色视频短片亚州色偷偷| 黄色日韩美女AA一级大片| 日韩A级黄色电影在线观看| 爱就干在线观看cao人人| 特级丰满少妇一级| 另类丝袜无码青青操影院| 在线看免费特黄视频| 一区二区有码电影| 在线观看黄色网页| 看黄片在线免费观看| 日韩视频在线第一页| 成人国产在线免费| 男人黄色毛片浮力麻豆精品| 亚洲无码成人电影在线观看| 日本乱伦五月停停| 免费在线裸体黄色电影| 成人无码福利国模久久| 三级成人电影在线免费观看| 久草免费在线成人人人澡|