Bore derust, descale

Scale is a result of a chemical reaction (iron oxide). The oxide layer is formed when reacting with oxygen or oxygen-containing gases at high temperatures (such as during welding) on a metal surface.

It is a grey-blue to black layer. Scale must be removed before further processing of a workpiece - and also in a bore - as otherwise contamination and quality problems can occur. In addition to chemical and electrochemical processes, scale can be removed mechanically with brushes.

Rust is caused by oxidation with oxygen in the presence of water. Rust should also be removed before further processing, as rust spots increase in size over time and decompose the metal. Chemical removal methods often do not produce the desired result. Instead, work should be done mechanically with brushes.

The Osborn internal brushes Helituf® and Situft® are particularly predestined for derusting and descaling bores.

Heliftuf brushes with spirally arranged, crimped wire adapt excellently to the component geometry. They are particularly suitable for cleaning the inlet and outlet of threads and also reach the thread base. The wire trim is arranged in a spiral. This simulates a lifting movement that loosens and removes impurities in the bore.

In the Situft brushes, the corrugated wire is arranged in a wing shape. Especially transverse bores can be processed very well with Situft brushes.

Helituf and Situft can be used in drill chucks, tool spindles and chucks.

The correct application parameters for these tools are decisive for the machining result. We have experience in this field and can assist you with our experts in the selection of the brush and the setting parameters in your machining centre or for your robot application. Feel free to contact us!