XT-6 magnetyzer do silników - BENZYNA + olej - XT-6 magnetizer

Strengths and weaknesses of rare earth magnets.

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

• They do not lose power, even over approximately ten years – the decrease in lifting capacity is only ~1% (according to tests),
• They have excellent resistance to magnetism drop when exposed to external magnetic sources,
• The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to present itself better,
• Magnets exhibit exceptionally strong magnetic induction on the outer side,
• Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
• Possibility of accurate shaping as well as adapting to specific applications,
• Fundamental importance in innovative solutions – they are used in data components, motor assemblies, medical devices, as well as modern systems.
• Thanks to their power density, small magnets offer high operating force, in miniature format,

Disadvantages of neodymium magnets:

• Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
• When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
• Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
• Limited ability of producing threads in the magnet and complex shapes - preferred is cover - magnet mounting.
• Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices can be problematic in diagnostics medical after entering the body.
• With large orders the cost of neodymium magnets is a challenge,

Detachment force of the magnet in optimal conditions – what contributes to it?

The specified lifting capacity represents the maximum value, measured under laboratory conditions, meaning:

• with the use of a sheet made of special test steel, ensuring maximum field concentration
• with a thickness minimum 10 mm
• with an ideally smooth touching surface
• with direct contact (no paint)
• under perpendicular application of breakaway force (90-degree angle)
• at conditions approx. 20°C

Key elements affecting lifting force

In real-world applications, the real power is determined by several key aspects, listed from most significant:

• Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
• Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
• Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
• Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
• Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
• Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

* Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance {between} the magnet and the plate reduces the load capacity.