In everyday life, we are used to using decorative elements on the refrigerator door to record notes, photographs, or simply to decorate the kitchen interior. However, when the need arises to buy new ones or find information about them on the Internet, many are faced with the question of the correct name of this item. Often the phrase “what are refrigerator magnets called” is entered into the search bar, expecting to hear some complex technical term, but in reality everything is much simpler and at the same time more complex from the point of view of materials science.
The correct and only commonly used name is magnet or diminutive magnet. In the professional environment involved in the production of souvenirs and promotional materials, the term ferromagnetic decor or simply advertising magnetis also used. It is important to understand that the object itself consists of two parts: a decorative base and a working magnetic part, which is hidden inside or glued on the back side.
The history of their appearance is closely connected with the mass production of refrigerators in the mid-20th century, when metal doors became the standard. Since then, they have evolved from simple pieces of magnetic ore to complex multi-layer structures with printing, 3D effects and functional additions. Today it is not just a utilitarian item, but a full-fledged element of kitchen design.
Design and arrangement of a magnetic holder
To understand how this seemingly simple item works, you need to consider its internal structure. Standard souvenir magnet is a composite product. The base that we see with our eyes can be made of plastic, ceramics, wood, epoxy resin or even textiles. It is this part that carries a decorative or informational load.
On the reverse side, a magnetic element is attached directly to the base. Modern products most often use flexible ferrite magnet in the form of a thin black film or more powerful neodymium alloys in the form of disks or cylinders. The quality of adhesion to the surface directly depends on the contact area and the strength of the magnetic field.
- 🧲 Single-layer magnets: they are a solid piece of magnetic vinyl with a printed image, often used for advertising leaflets.
- 🖼️ Combined models: consist of heavy decorative part (ceramics, metal) and a separate magnetic disk glued into the recess.
- 📌 Functional holders: designs where the magnet serves as the basis for attaching hooks, openers or knife holders.
Particular attention should be paid to the method of fastening. In cheap models, the magnetic tape can be glued to double-sided tape, which dries out over time. High-quality products use the method of hot pressing or deep pressing, which guarantees the durability of the connection. If you plan to create your own design, choosing the type of base will be critical.
Materials for making the magnetic base
The choice of material for the working part of the magnet determines its adhesive strength and durability. The most common material is barium ferritewhich is mixed with a polymer binder. The resulting mass is formed into strips or blocks. Such magnets are low cost and resistant to corrosion, but have a relatively low magnetic force.
A more modern and powerful solution is neodymium-iron-boron (NdFeB) alloys. These rare earth magnets possess colossal adhesive force at microscopic sizes. They are used in miniature but heavy souvenirs, where ordinary ferrite simply would not hold the weight of the product on a vertical surface.
⚠️ Attention: Neodymium magnets are very fragile and susceptible to corrosion. If the protective nickel coating is damaged, the magnet will begin to rust and crumble, leaving marks on the refrigerator door.
There is also a category flexible magnets based on rubber or vinyl. They are easy to cut with scissors, making them ideal for creating magnetic sheets, schedules or children's applications. However, their strength is significantly inferior to their solid counterparts, and they are only suitable for lightweight papers.
Why do magnets lose strength?
Over time, magnets can demagnetize. This occurs when exposed to high temperatures (above 80°C for ferrites), strong impacts, or when improperly stored next to each other in a chaotic manner. Also, the aging of the material leads to a natural decrease in magnetic properties after 10-15 years of operation.
Varieties in form and functionality
Today the market offers an incredible variety of shapes. In addition to the classic round and square models, shaped magnets that follow the contours of fruits, animals or architectural landmarks are popular. The shape affects not only aesthetics, but also the area of contact with the surface.
Functional models deserve special attention. Magnetic openers for bottles, mounted on the wall of the refrigerator, are always at hand. Magnetic timers Thermometers help in cooking, and knife holders free up space on the work surface. They all use the same principle of fixation, but require a more powerful magnetic core.
- 📏 Rulers and meters: magnetic strips with centimeter markings, convenient for quickly measuring products.
- 📝 Note boards: special surfaces to which markers stick, often combined with calendars.
- 🔦 Light devices: miniature flashlights on a magnetic base that can be removed and used autonomously.
Exclusive series are important for collectors. Limited edition event items or precious metal magnets are of interest not as utilitarian items, but as investment items. Their design is often more complex, as it requires protecting noble metals from oxidation.
Comparison of types of magnets: table of characteristics
To choose the best option for specific tasks, be it holding a heavy catalog or decorating a children's craft, it is necessary to compare the technical characteristics of different types. Below is a table to help you navigate the properties of materials.
| Magnet type | Adhesive strength | Flexibility | Water resistance |
|---|---|---|---|
| Ferrite (black) | Medium | Hard | High |
| Neodymium | Very high | Hard | Requires coating |
| Flexible (vinyl) | Low | High | Absolute |
| Alnico (alloy) | High | Hard | High |
The table shows that neodymium models are best suited for heavy objects, while vinyl is indispensable for creating flexible schedules or children's games. Alnico (an alloy of aluminum, nickel and cobalt) is less common, but is valued for its ability to work at high temperatures, which is important if the magnet is planned to be used near an oven.
☑️ Choosing a magnet for a heavy shelf
The influence of magnets on the operation of the refrigerator
There is a persistent myth that magnets can negatively affect the operation of the compressor or refrigerator electronics. In reality, modern household refrigerators have reliable protection, and the magnetic field of decorative elements is too weak to penetrate through the thick layer of thermal insulation and metal casing to the internal components. However, there are nuances associated with sensors. If your refrigerator model is equipped with a touch control panel located on the door, a powerful neodymium magnet placed directly next to the sensor may cause false alarms or blocking of the buttons. In such cases, the instructions
However, there are nuances associated with electronic displays and sensors. If your refrigerator model is equipped with a touch control panel located on the door, a powerful neodymium magnet placed directly next to the sensor may cause false alarms or blocking of the buttons. In such cases, instructions Service Manual recommend keeping a distance.
⚠️ Attention: Do not place powerful magnets directly above the areas where electronic control modules are located if they are located on the front of the door. This may lead to incorrect temperature display.
It is also worth considering the weight. If you plan to decorate the door with tens of kilograms of souvenirs (which happens in collections), this will create additional stress on the hinges. Although the magnetic weight itself is not harmful to the motor, mechanical deformation of the door can disrupt the tightness of the seal, which will lead to loss of cold.
How properly attach and care
To ensure maximum adhesive force, the surface of the refrigerator and the back of the magnet must be perfectly clean. The grease film that inevitably forms in the kitchen acts as a lubricant and damper, significantly reducing the effectiveness of the magnet. Regular cleaning is the key to reliable fixation.
Use a soft cloth and neutral detergents. Aggressive chemicals can damage the coating of the magnet itself, especially if it is painted metal or plastic. To clean heavy stains, a weak solution of vinegar or a specialized spray for kitchen appliances is suitable.
- 🧽 Regularity: wipe the area under the magnets during each general cleaning of the kitchen.
- 🚫 Exclusion of abrasives: do not use hard sponges so as not to scratch the decorative layer.
- 🌡️ Temperature conditions: do not wash magnets with hot water if they are glued, so that the glue does not soften.
If the magnet no longer holds the paper, try turning it over to the other side or moving it to an area with a flatter surface (avoid raised areas of the door). Sometimes simple cleaning of accumulated dust between the magnet and the case helps.
Collecting and cultural aspect
Collecting magnets is one of the most popular hobbies in the world. People bring them back from their travels, exchange rare specimens and organize collections by topic: cities, professions, cartoons. For collectors, not only the appearance is important, but also the history of the creation of a particular specimen.
There are even collectors' clubs and magnet museums. Some pieces can be quite expensive, especially if they are limited edition or mid-20th century vintage. In this context, a “magnet” turns from a household trifle into an object of cultural heritage.
When creating a home collection, it is important to consider storage conditions. Direct sunlight can fade paint, and high humidity can cause corrosion of metal parts. Use special display cases or albums to store valuable items if they are not hanging on the refrigerator.
How to store a collection without a refrigerator?
To store large collections, use special metal panels that are hung on the wall. This allows you to create a “magnetic wall” where you can place and change the exposure without damaging the furniture.
Frequently asked questions (FAQ)
Can magnets scratch the refrigerator?
Yes, they can if a hard grain of sand or crumb gets between the magnet and the surface of the door. When moving the magnet, it may leave a scratch. Also, abrasive particles may be on the back side of the magnet itself. It is recommended to periodically wipe the back side of the magnets with a damp cloth.
Why does the magnet not hold well on some refrigerators?
Modern refrigerators often have stainless steel doors with anti-corrosion coating or even plastic facades. Some grades of stainless steel (austenitic) can be weakly magnetic or non-magnetic. In such cases, ordinary ferrite magnets do not hold well, more powerful neodymium models are required.
How to remove traces of old tape or glue from a magnet?
Use vegetable oil, alcohol or a special Anti-Scotch product. Apply the product to a cotton pad, apply to the stain for a few minutes, then gently rub. For plastic bases, avoid using acetone as it can melt the surface.
Are magnets safe for children?
Small neodymium magnets pose a serious danger to small children. If a child swallows two or more of these magnets, they can be attracted through the intestinal wall, causing tissue necrosis and perforation. Keep small magnets out of the reach of children.
Can magnets be washed in the dishwasher?
Most magnets are not dishwasher safe. High water temperatures and aggressive detergents can damage the adhesive layer, paint or protective coating of the neodymium alloy. It is recommended to wash them by hand with warm water and soap.