April 18^th 2018,World biggest ring rolling machine was successfully test running in Shandong province,China,this test cost 2 days,two trial products OD over 6m,each weight 35tons which were one time formation successfully,product surface is bright and clean,flat,and other parameters also meet the requirements,in next month,OD 10m,12m,16m ring products and height 3m cylinder will be trial made,currently world biggest forged ring is 10m,the record will be cut earliest before May 1^st.

This ring rolling machine was introduced by Shandong province,China,It can make dia 16m,height 3m,weight 200tons many kinds of big scale disc,ring,cylinder forgings,radial rolling force 2500tons,axial rolling force 1250 ton,which is world biggest ring rolling machine both radial and axial direction,equip with 1350 ton hydropress,ID 17.5m vertical heat treatment furnace,dia 19m,dept 5m quenching water flume,dia 16m vertical CNC lathe to make up high alloy and nonferrous metals big forgings project of shaidong,China.and cooperate with team Mr Li from China top metal research institute,it is typical project of made in China 2025,will support nuclear power,refining,manned space flight,big scale winder power project in future.

Big forgings project got much attention since it started,so we need to ask what’s the application for such big forgings of this project.today we will make a simple introduction by some pictures,due to some technical and confidential reasons,this introduction only for reference,it will be appreciated if you leave comments.

First common application:connection of sectional type cylinder equipment

Below three pictures show application in wind power project,first picture is foundation flange for simens 7MW on 2017,second picture is same typ of flange in Europe,third picture is simens 7MW after assembly

Note,not only used in wind power tower,but lots of cylinder equipment,for instance below rocket barrel aslo connected big flange.

Haha,chief engineers,scientists,now flange dia will be increased to 16m,what’s this big dia for,purchaser is no longer to worry about.

Second common application,transmission device

Following picture is dia 10m slewing bearing made by LIEBHERR,you can imagine how 16m look like!

It’s used for this big machine

So the earth can not rotate without transmission device,which can not be made without big ring forgings

Third common application:pressure vessel barrel section

It doesn’t matter if you don’t know what pressure vessel is,you just know they are high pressure resistant,if one day,they are broken,then will cause severe problem

This is the “core” of nuclear power station,called reactor pressure vessel,why we say it is “core”,firstly it’s position is in the center of nuclear power station,secondly it is the place where nuclear reactor happens,fuel rod is just in it.

Apart from nuclear,in our daily life many kinds of chemical product is produced in it,for example

This pressure vessel is welded by barrel section,perhaps the procedure:barrel forgings made in China are sent to downstream factory for assembly.

That’s it,although the introduction is simple,some pictures are not accurate,but for you to understand the application of big scale forgings is enough,next we will continue to share news of this project,this is a miracle of mankind industrial manufacturing history!