Inner Burr Removal Knife for ERW Tube Mills

ERW 탄소강 튜브 밀

Tube Mill Machine Compose

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Tube inside Scarfing Inserts

During high-frequency welding of steel tubes, excess weld material often forms along the inner seam, creating internal burrs that can interfere with downstream processes or product quality. The inner burr removal knife is a critical tool designed to trim and smooth these internal weld protrusions in-line during tube production, especially for applications requiring high inner surface quality—such as in automotive tubing, furniture, and fluid transport systems.

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Specification

Inner Burr Removal Knife for ERW Tube Mills

During high-frequency welding of steel tubes, excess weld material often forms along the inner seam, creating internal burrs that can interfere with downstream processes or product quality. The inner burr removal knife is a critical tool designed to trim and smooth these internal weld protrusions in-line during tube production, especially for applications requiring high inner surface quality—such as in automotive tubing, furniture, and fluid transport systems.

Working Principle

The inner burr knife is typically installed after the welding section and before sizing. A precision-guided support mechanism feeds the knife head into the inner diameter of the tube, aligning it directly under the weld seam. As the tube continuously moves forward, the knife scrapes or shaves off the burr along the weld line. Some knife heads feature oscillating or rotary action to enhance trimming efficiency. Removed burr particles are discharged and collected via an external extraction system.

What are Tube Inside Scarfing Inserts used for?

It is used to scrape the inner wall weld of steel pipe and remove the internal burrs.

What is the difference between yellow and black Tube inside Scarfing Inserts?

They have different coatings, yellow is titanium plating, and black is black crystal steel.

What models are available for Tube inside Scarfing Inserts?

It has many models, which can be selected according to the size of the steel pipe.

Why do you need Tube inside Scarfing Inserts?

The application of Tube inside Scarfing Inserts can make the steel pipe look smoother and more beautiful, meet national standards, and extend the service life of the steel pipe.

What is the quality of Tube inside Scarfing Inserts?

Our Tube inside Scarfing Inserts are alloy steel ring knives with good quality, but attention should be paid to the correct use method to ensure its service life.

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