Fluorescent inspection system

More efficient and economical inspection systems

Fluorescent penetrant inspection systems, with that a large amount of test objects can be inspected efficiently and economically, have been widely used for precise inspections of various types of parts including those in the aviation industry. NEOGLO-UNITS have been designed and madeto satisfy users’ needs adequately by making full use of “know- how “cultivated in long-term experiences and abundant sales achievements.

Eishin’s & J.N.S. (2003) penetrant inspection systems are mainly divided into fourtypes.Test objectsaretransferredmanuallyby handor with hoists. Automatic system is also available. Every inspection process can be automated from penetration to inspection,andthe test objects are transferred automatically.

EF-A type system

Small-sized penetrant testing system (about 5m in total length) for small and light weight test objects. Basically, test objects aremanually transferred between the stations.

EF-B type system

Medium-sized penetrant testing system (about 10m in total length) for large and heavy weight test objects. Usually, test objects are transferred on the roller conveyer between the stations. Each station is equipped with a lifter or a door.

EF-C type system

Large-sized penetrant testing system (more than 10m in total length) for mass-produced parts. The test objects are automatically transferred on the independently-driving roller or chain conveyer.

EF-D type system

EF-D type system is equipped with the waste water treatment system dedicated to separate-type water washable fluorescent penetrants. Rinse water can be recycled with this system.

  • Waste water treatment systems for standard penetrants (MIZUSUMASHI)are also available.
  • Custom-designed system is available.

Procedures for fluorescent penetrant inspection

Fluorescent penetrant inspections may be performed in three methods. Select any of these methods and the type of the penetrant to be used depending on the material type of test objects, the surface condition and the defect type.

Magnetic particle inspection machine

MAGNASTAR consist of various types of components required for magnetic particle inspections such as a magnetizing power supply, a different type of magnetic particle inspection equipment, and a demagnetizer. Select out the desired type appropriate for your inspection objects and inspection requirements. EISHIN also designs and manufactures special-purpose magnetic particle inspection equipment.

Magnetizing power supply

To meet all of varied needs, a wide range of types are provided from the portable type to the large system.

Portable type

Designed to be small and compact. This type can be carried easily, so it is useful for outside inspections or when the inspection location is undefined.

Thyristor type

Power supply using the thyristor phase control system. This type provides both of AC and DC magnetic outputs, and a built-in AC automatic attenuation demagnetizer (Models SA-50 and 60 provide a DC pole reversing automatic attenuation demagnetizer as well). Suitable for a wide range of applications from prod magnetizing to large automatic systems.

TDF type

This largest-sized type provides both of AC and DC (three-phase full-wave rectification) outputs and a built-in AC automatic attenuation demagnetizer (a DC pole reversing automatic attenuation demagnetizer as well). Mainly used for the surfaces and subsurface inspections of steel materials, large-sized parts, precise parts, etc.

Thyristor type SA-50,60

Magnetic particle inspection equipment

To meet all of varied needs, a wide range of types are provided from the portable type to the large system.

Training type

Designed specially for training or magnetization testing.

SA type

Standard type and commonly used.

Immersion type

In this type, to perform inspections, the tested materials are immersed into a particle solution. Two types are provided : Model DHS, electrode-pressing type, and Model DHT, clamped type.

Duovec type

Performs inspections of the inspection objects in the longitudinal and circumferential directions simultaneously at one magnetizing operation.

TDF type

In conformance to MIL Standards, designed specially for detecting of aircraft and precise parts.

SA-40H

Demagnetization

Demagnetizing power supplies/power units

For complicated-shape parts, it has been very difficult to demagnetize down to 3 gausses or lower so far. This type has overcome such a problem. Combination of a power supply and various types of coils enables the user to select the desired demagnetizing technology.

Demagnetizer

There are many technologies for demagnitization. Encircling coil or box-type demagnetizers are commonly used. With the encircling coil type, demagnetization can be done in several ways satisfying the user’s needs. The box-type is useful for inspections on small-article parts and thin steel sheets.

SPD-80H

BOX-type