[Explanatory Material] What is Barring? has been registered.

Improved cleanliness and strength!? Here's a summary of the two-birds-with-one-stone processing method 'burring' used for stainless steel containers.

"Burring" refers to a processing technique where a hole is made in a material and the edges of that hole are extended in a cylindrical shape. This technology is generally used to secure screw threads, but at Nitto Metal Industry, it is employed for purposes such as improving the cleanability of containers. In industries such as pharmaceuticals and food, where preventing foreign matter contamination is particularly emphasized, stainless steel containers are often used due to their resistance to rust and hygienic properties. The "cleanability," characterized by the difficulty of dirt accumulation and ease of cleaning, is an important point in equipment selection. The processing technique that demonstrates effectiveness in this regard is the "burring process" that we will introduce here. This document will outline the methods and purposes of burring processing at our company.

• Stainless steel container

BA material, 2B material, buff polishing, electrolytic polishing... A grand reveal of stainless steel surfaces that cannot be discerned by the naked eye!

Smooth, rough, silky... Depending on the material and surface finish, stainless steel shows various appearances. However, it is not possible to see what the actual surface looks like just by visual inspection. Therefore, this time, we will introduce photographs of stainless steel surfaces taken using a scanning electron microscope (SEM). *What is a scanning electron microscope (SEM)?* Unlike optical microscopes (such as magnifying glasses and general microscopes) that use light, a scanning electron microscope uses electron beams. It allows us to clearly see fine surface structures that cannot be observed with optical microscopes.

• Stainless steel container

Stainless steel is a metal that is "difficult" to rust!

We sometimes receive inquiries from customers saying, "Even though it's made of stainless steel, it rusted quickly." Stainless steel, as the English words "Stain (rust, corrosion) + less (less) + steel (steel)" suggest, is an alloy of iron that is highly resistant to rust. While it is much less prone to rust compared to regular iron, it is not completely rust-proof. This PDF document summarizes "Why is stainless steel resistant to rust?", "What causes rust on rust-resistant stainless steel?", and "What are the rust prevention measures for stainless steel containers?" You can view it immediately by downloading the PDF.

• Stainless steel container

I have summarized the important cleaning methods to make stainless steel containers last longer.

After using a stainless steel container, it is essential to clean the container. However, incorrect cleaning methods can cause scratches or lead to rust. Here, we will introduce important cleaning methods to help prolong the life of stainless steel containers.

• Stainless steel container

I will give a brief overview of Tank No. 20.

A Type 20 tank refers to a tank used for the temporary storage and retention of hazardous materials. It is named as such because it is defined in Article 9, Paragraph 1, Item 20 of the Fire Service Act's "Ordinance on the Regulation of Hazardous Materials." Here, we will provide a clear explanation of the uses and criteria for Type 20 tanks. Nitto Metal Industry is capable of manufacturing stainless steel Type 20 tanks and containers for the transportation of hazardous materials. Please feel free to contact us with details about the contents and capacity.

• Stainless steel container

Easy to wash without tools and essential for containers and piping: a summary of the mechanism and related products of "Herl fittings."

When flowing or pouring water and raw materials into stainless steel containers or equipment, I believe that pipes and valves are connected to the containers or equipment. When connecting these, threaded fittings such as sockets and nipples, as well as "fittings" like flanges and hygienic fittings, are used. Here, we will introduce "hygienic fittings," which are used in processes that require a more sanitary environment, including their applications, types, and related products.

• Stainless steel container

One of the metal surface treatment methods, buff polishing, explained by a stainless steel container manufacturer!

The surface of the beautiful stainless steel container reflects like a mirror. Did you know that this beauty is not a characteristic of the material itself, but rather something artificially created? Generally, the surface of stainless steel containers is polished to a shine by a method called buff polishing, done by human hands. Here, we summarize a type of polishing method used to finish the surface of stainless steel, known as buff polishing.

• Stainless steel container

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.