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Zeros GmbH

Zeros GmbH is your reliable partner for destructive and non-destructive materials testing.

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Germany

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Overview

Zeros GmbH is your reliable partner for destructive and non-destructive materials testing.

Zeros GmbH have an experienced team of materials testers and engineers that offers you a comprehensive range of testing services to ensure the quality and safety of your components and systems. They specialize in testing metals, plastics and composite materials.

Zero GmbH materials testing includes both destructive and non-destructive testing methods. They use the most modern testing technologies and methods to meet your requirements and purposes.

Zero GmbH's non-destructive testing methods include ultrasonic testing, X-ray testing, dye penetrant testing, magnetic particle testing and visual testing. Tests are carried out without damaging the material. These test methods are often used in testing welded joints, castings and forgings, electrical sheets, copper pipes, aluminium alloys, turbine blades and heat exchangers.

Products & Services
Dye penetrant testing

The Zeros testing laboratory uses dye penetrant testing to identify defects on surfaces of metallic and other non-porous materials. Dye penetrant testing is a non-destructive material test.

Due to the capillary effect, a coloured test liquid penetrates every irregularity of the test object, depending on the type and properties of the material. After removing the test liquid, a counter-capillarity is created by applying a developer layer, which makes cavities, cracks and other defects visible.

The prerequisite for veritable results of this penetration process, which is used in particular in steel, bridge and container construction, is a particularly careful and thorough procedure by DIN 54 152 of the Materials Testing Ordinance.

Magnetic particle testing

Magnetic particle testing is used to detect defects, near and on surfaces, in ferromagnetic materials such as cast iron, steel, cobalt and nickel.

The effect is used that defects in the material produce small stray fields on the surface when exposed to magnetic fields. The ferromagnetic particles collect in these stray fields.

Crack Testing

Zeros GmbH carry out crack tests in the laboratory or on-site.

Crack testing, or surface crack testing, is a collective term for the surface methods of dye penetrant testing (PT) and magnetic particle testing (MT).

When checking for cracks, a defect must be open to the surface so that it can be visible. The test material penetrates the crack ( dye penetrant testing ) or collects on its surface due to a change in the magnetic field ( magnetic particle testing ). This procedure can detect cracks, pores and bonding defects down to 1 µm. Of course, when testing for cracks, the test equipment must be material-compatible.

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