Blasting and burnishing

BLASTING HAUPT!

  • Sandblasting, glass bead blasting, steel shot blasting, priming
  • Burnishing

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Office hours: Mon. – Fri. 08.00 – 12.00 & 13.00 – 16.00 | Call now: +49 4173 58181-0

Rays

Sandblasting, glass bead blasting, steel shot blasting, priming

The various blasting processes are used:

descaling and derusting of semi-finished products (slabs, sheets, profiles)

Desanding and descaling heavy metal castings

descaling of forged parts

deburring and leveling of LM castings

pre-treatment before coating

We use the glass bead blasting method to clean component surfaces, remove the protective paste after the partial nitriding process and use this as a polishing option in the Tenifer® QPQ treatment. With this process technology, we avoid damaging the workpieces. We use steel shot blasting to remove surface contamination as a result of thermal processes – all the more important as oxidation residues or similar can heavily contaminate the cooling lubricant during a subsequent machining process such as turning, grinding, etc. In addition, the components are given a clean and smooth surface. In addition, the components are given a clean and visually appealing surface and, on request, we can apply the appropriate primers for subsequent painting.

Burnishing

Burnishing is used to form a weak protective layer on ferrous surfaces in order to reduce corrosion. By immersing the workpieces in acidic or alkaline solutions or molten salts, mixed oxide layers (conversion layers) of FeO and Fe2O3 of a deep black color are formed. Due to the low layer thickness of approx. 1 µm, the burnished workpieces remain dimensionally stable and, due to the porosity of the burnished layers, they only have a low level of corrosion protection, which can be significantly improved by oiling or greasing. These coatings are largely resistant to bending and abrasion and can withstand temperatures of up to approx. 300 °C. They are mainly used in machine and tool construction. The process is standardized in DIN 50938.