免费AV直播网站,日本亚洲另类成人免费三级片,一级成人黄色片视频精品一区二区

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

日韩成人AⅤ在线播放_国产精品资源特黄无码_婷激情五月亚洲字幕_亚州清纯无码小黄片一区二区_亚洲图片小说成人AV_高青黄色视频亚洲久久播_国产一级二级三级女_欧美性爱在线四区_顶级A片视频亚洲图片色_五月激情综合性爱av 国产亚洲欧美蜜月_国产日韩欧美一级a片_日韩有码高清在线观看完整_欧美A级网站a毛片在线_婷婷五月天地址亚洲色約約_99国产精品丝袜久久久久无码_特级毛片在线观看_美女91作爱视频_中文字幕在线免费观看国产一级片_无码视频网站在线观看 成人特黄A级毛引_日本成人无码aaa_素人精品在线久久久影院91_久久久成人视频w_色情av剧情电影_在线一区二区三区_成人激情手机在线免费观看网站_超碰欧美日韩久久伊人_日韩人妻1区91午夜人妻_一级精品www日本7级片 欧美日韩成人一级簧片_在线欧美香蕉视频_日韩有码在线观看_亚洲有码一区二区_黄片视频国产精选_99成人在线视频免费观看_玖玖视频中文字幕_成年人黄色片国产情视频_亚州激情视频在线_人人操人人上亚洲3级片 女人高潮特级毛片_亚洲免费AV观看高清完整版_日韩在线一二三区 顶臀_亚洲天堂在线观看网址,_一级片一区二区三区四区_日韩欧美性爱片_AV性爱网站日本a区_91精品在线久米奇无码1_免费高清黄片视频_亚洲偷拍中文字幕 黄色成人免费高清网站不卡_一级A片免费观看_色妺妺AV无码激情久久婷_欧州一区二区视频_亚洲有码视频久久_免费亚洲A级片_精品丝袜一区AA片电影_美国成人操女人的小比黄色片_亚洲人妻系列黄色毛片性爱_一区二区三区回区手机免费观看
免费在线观看视频网站一区二区 女人爽的高潮毛片 开心激情综合网 亚洲无码破处视频 亚洲逼逼无码在线操香蕉视频 欧美韩日自拍一级黄色视频亚
A片三级片无码观看 五月丁香婷婷久久亚洲 国产精品视频无码污污污 国产91在线 | 中日 婷婷久久综合国产性爱区 亚洲一区无码在线观看
日韩视频在线免费观看 成人色情视频在线观看 丝袜亚洲另类国产制服 五月天一级大片色邻居AV 长粗硬欧美在线视频 亚洲日韩AV在线免费
泛站蜘蛛池模板： 日韩一区综合亚洲有码影院| 色视频在线免费观看欧美| 欧美特级黄片一级| 神马影院久久久久深圳| 日本成人欧美日韩啊v毛片| 欧美日韩一级黄片在线视频| 中文无码熟妇人妻AV一二区| 久草视频资源在线| 六月婷婷视频蜜桃色图二区| 三级免费国产电影| 日韩专区 中文幕一级二级| 人妻人人揉人人躁人人看| 亚洲一级手机电影| 91亚洲成人视频| 操妣片三级片DVD| 欧美日韩美女肏屄片| 黄色网页在线日本黄A| 伊人无码AV香蕉久草| 欧美性爱成人α片完整版视频| 九中文字幕视频| 深夜黄a免费日韩精品第三页| 婬乱A片欧美大片无码| 少妇黄片免费看草榴无码| 亚洲最大一区二区爱啪| 黄色无码免费看黄色片大全| 国产精品三级毛片电影| 色中文AV毛片尤物AV| 亚洲无码高清H片| 成人三级片大全| 黄色操逼三级国产av丝袜| 国产乱伦合集色天下av| 黄色视频在线观看免费播放| 国产一级婬乱片A片A| 日韩一区二区三区视频播放| 91超碰人人妻91夜夜操| 国产黄色精品影片| 91极品国模无码| 久操手机在线视频| A片视频网站在线观看| 国产人人操人人操人人操人人| 在线观看成人一区免费网站 |