The short video of stainless steel ring is on our Youtube channel now. 

The link is as follows. 

https://youtu.be/zJa-nYyi48M

Manufacturing stainless steel ring by centrifugal casting 

In recent months, several customers inquired our stainless steel ring of different types.  Therefore, we would like to introduce our stainless steel rings again for whom is also interested in our stainless steel rings manufactured by centrifugal casting. 

Stainless steel ring is one of the most popular products of centrifugal casting. When it comes to centrifugal casting, most people think of stainless steel tubes instead of stainless steel rings.  However, stainless steel rings are from tubes. Most smaller stainless steel rings are cut from one-piece construction tubes produced by horizontal centrifuge.  And larger diameter stainless steel rings are able to be produced by vertical centrifuges directly.  So, what is the difference between horizontal and vertical centrifuges?  Why using different machines to produce stainless steel rings? 

When the stainless steel ring is large and the length is short, the vertical centrifuge is able to be considered first.   Once the stainless steel ring has a small diameter, horizontal centrifuge should be used. 

For example, stainless steel ring with OD 400 mm should be produced by vertical centrifuge.

The advantages of stainless steel ring produced by centrifugal casting 

Non-impurities, non-pores and customized diameters

Regarding non-pores of stainless steel ring:

Before mass production, customers often purchased one piece centrifugal casting for trial production then conducting X-ray inspection.  The feedback from customers we received is centrifugal casting is good and there is no porosity always. 

Because the cooling of centrifugal casting is from the outside to the inside diameters, the pores would not be generated from the directional cooling process.

Regarding non-impurities of stainless steel ring:

The stainless steel ring without impurities is because the casting method of centrifugal casting is far different from static casting.  When melting, some impurities would be removed initially.  Then, the metal liquid is poured into the mold and the mold is rotated by high speed, the impurities with lower densities would be moved to the inner diameter.  Those unwanted matters could be removed by simple machining.  (This is the concept of twice refinery) .

With regard to customized diameter of stainless steel ring:

The customized diameter of stainless steel ring is a significant feature of centrifugal casting.  LAWAI has comprehensive molds to produce stainless steel rings with various diameters, therefore centrifugal casting is suitable for all new projects. 

Rough machined stainless steel ring 

Customers who purchase our stainless steel rings are machine shops and hi-tech industries mainly.  These customers have excellent machining capabilities, but there is no casting department at their companies.  So, they purchase various stainless steel rings from our company as their blank materials.

More and more machine shops prefer purchasing our stainless steel tubes (The length is around 1~2m) back instead of stainless steel rings.  They would like to use and machine these tubes freely. 

The source of stainless steel ring – choosing centrifugal casting or round bar?

Some customers used to purchase stainless steel round bars then drilling and cutting them by themselves to make stainless steel rings.  They finally changed to purchase stainless steel rings made by our centrifugal casting.  Because the remaining material after perforation would get stuck in machines or become waste.  In order to make the production process smoothly and conveniently, purchasing centrifugally cast stainless steel rings is a better choice in customer’s pint of view. 

In addition, the prices of centrifugally cast stainless steel rings are lower than round bars once the stainless steel rings are with larger inner and outer diameters.

Choosing centrifugally cast stainless steel ring or round bars to make rings?

Which one is better ?

It should depend on the dimensions of the stainless steel rings you need and the process of further machining. 

If you have any question regarding our stainless steel rings produced by centrifugal casting, please contact us !

LAWAI INDUSTRIAL CORPORATION

No.1283-1, Ren-ai Road, Chunan Township, Maioli County, Taiwan 

+886-3-6581116

[email protected]

http://www.lawai-alloytube.com/

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The common stainless steel rings we could provide are as follows：

300 series – Stainless steel rings

400 series – Stainless steel rings

Duplex – Stainless steel rings

Precipitation hardening– Stainless steel rings