Tips about Large Stainless Steel Hollow Spheres

There are two kinds of large stainless steel spheres- stainless steel hollow balls with opening and balls without opening. And the methods to make these balls differ.

Let’s start with the first one. Large stainless steel hollow spheres without opening.

Generally speaking, they are first formed by using cold extrusion to stamp the steel plate into two hemispheres and then welding, while big stainless steel hollow ball with opening is made by first using cold extrusion to stamp the steel plate into a cup shape with a spherical bottom, and then closing it-no weld. Of course, the closing method can be rolled or cold extruded with an abrasive tool-the upper abrasive tool is a concave spherical surface-more efficient and regular.

To make a large stainless steel sphere, fist, we need to calculate the blanking and then, there must be follow-up processing to meet the final requirements.

Then, how to dealing with rust spots for a large stainless steel hollow spheres?

Stainless steel building materials are a kind of metal that is not easy to rust. Usually, large stainless steel hollow spheres can keep bright and corrosion-free for a long time if the stainless steel is used and maintained correctly. However, large hollow stainless steel ball is not a metal that will never rust. It will also be contaminated and rusted in bad conditions or harsh environment. Don’t neglect daily maintenance just because stainless steel is a kind of metal that is not easy to rust.

However, when it indeed happens, what should we do? As a stainless steel sphere supplier who specializes in this area for many years, we would like to guide you how to treat them properly when it comes to rust spots.

Here, there are two ways to deal with it.

One. Do not damage the original two sides of the stainless steel as much as possible. But if the surface pf a large stainless steel hollow sphere is damaged unadventently, it needs to be polished smoothly.

Two. The treatment should be carried out when the weather is clear and the air is relatively dry. The reason why stainless steel is resistant to corrosion is that there is a dense layer of Cr203 on its surface, and this layer of Cr203 must be formed in contact with oxygen. When the air humidity is relatively high, there will be condensed water on the surface of the stainless steel. This condensed water makes the stainless steel and the air Oxygen isolation. In addition to the 0r203 layer damaged by the rust removal, which cannot be repaired in time, the impurities in the water continue to react chemically or electrochemically with the stainless steel, so new rust spots quickly appear on the rust-removed parts. This is why it is required to choose rust removal when the weather is clear and the air is relatively dry.

Above is some knowledge about large stainless steel hollow balls. Hope what we said can help you a lot.