超碰人人射av成人开心网,特级毛片大全最黄国产A片,亚洲黄色视频无码在线播放

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

亚洲国产狼友在线视频_亚洲国产不卡在线_日韩AV无码激情片_日韩无码专区水蜜蜜在线_日本成人剧情性爱视频_成人网站在线播放免费视频_黄色片儿黄色大片儿_日韩一级无码亚洲欧美自拍网_成人91深夜精神_国产大象传媒AV在线网站 日韩av网址在线免费播放_av在线观看免费_黄色电影在线视频_日本少妇—级特黄大片_日本黄色a一级二级三级_女裸体无遮挡黄色在线观看_亚洲AV小电影小说_免费看成人黄色大片_日韩无码一区二区三区精品视频_超碰青青人人肉肉 影音先锋在线人妻少妇视频_在线超碰国产综合影院第一页_亚洲国产精品女人_午夜成人动漫不卡网日韩国产_一级日比黄色毛片处女_中国少妇性爱网址_性爱小说视频网站_人人看看老阿姨的超碰人人_国产A∨播放爱爱唔吗视频_欧美日韩清纯视频 欧美自拍亚洲精品一二三区_手机看片日韩永久免费_99热熟女动漫性爱小视频91_日韩黄色电影亚洲欧美色图_久久免费激情无码 激情_三色黄A片免费一女二男_特一级高清免费毛片_欧美日韩一区二区嗯啊_国产精品美女婷婷色伊人_一级黄色电影一级黄色电影 激情亚洲日本六月天_一级婬片A片免费播放桃_中文字幕国模日韩无码精工厂_熟妇日日夜夜黄色三级Av片_AV动漫四区无码色AV_成人黄色三级毛片小视频_色悠悠久久久久久久_一接毛片女人男人强奸女人片网站播放_欧美亚州国产中文久激情_欧美三级在线A黄片免费观看 超碰成人人人免费看_免费无码进口视频_日韩成人一级片免费看_成人免费午夜视频_成人av导航在线_欧美亚洲图文小说区_三级片AV免费电影_AV中文无码激情呦呦_538精品在线超碰_亚洲无码一级视频
久久人人国精品蜜桃 aa日韩无码操国产在线看 亚洲激情播播91看黄片 欧美成人片久久久久久久 国产一区二区三区短视频 亚洲综合在线发布
日本国国产一级片 AV福利精品导航 人射人人射韩日成人AV 亚洲欧美成人黄片 97奇米在线看美国av 久久久久99精品成人片毛片
婷婷五月久久香中成人a片 毛片视频有哪些噜视频 日韩无套无码刺激片 国产高清无码自久久久路 xxx免费中国视频黄色的 激情综合一区二区三区
泛站蜘蛛池模板： 免费一级做a爱片毛片A片小说‘| 91一极片网站日韩Aaa级毛| 欧美黄色性爱黄色性爱图片| 国产无码手机版理伦片无码| 国模无玛美女一区二区| 老司机精品视频100部| 日韩黄色A级片亚洲色a网| 日本不卡视频二区| 亚洲色图AⅤ91福利区| 久艹成人视频在线观看| 自拍欧美亚洲人妻| 黄色三级黄色电影| AV在线黑丝袜日韩人人操| 尤物福利精品AV| 国产动作一区性爱一道本| 五月丁香在线视频| 国产自产29玖玖免费网站| 成人国产精品免费观看动漫| 成人免费视频99爱| 国产精品Av在线观看| 亚洲成人福利电影| 国产大片高清无码| 国产精品视频网特级片A片| 色片国产一区e日韩免费AV| 成人三级电影免费观看| 日韩无码精品AV| 免费观看黄色A片电影网| 福利区日本免费久久人人草| 无码流出av免费网站| 亚洲A片视频网| 小黄片91视频蜜桃色av| 激情床戏蜜桃午夜人兽| 欧美日韩丝袜高级精品久久久| 95色热热热热热热| 亚洲成人自拍无码一区两区| 日韩成人性无码一级视频| 国产一级特黄录像| 台湾无码一区二区久久婷婷| 伊人av影院韩日内射| 99国产中文无码视频| 包情免费网站在入口在线观看|