How to use neodymium magnets for healing
While neodymium magnets are sometimes marketed as having healing properties, it’s essential to approach such claims with caution.
how to use neodymium magnets for healing, The scientific evidence supporting the efficacy of using neodymium magnets for healing is limited, and they should not be considered a replacement for conventional medical treatments. However, if you’re interested in exploring the potential benefits, here are some ways neodymium magnets have been used: Magnetic therapy: Some proponents of magnetic therapy suggest that placing neodymium magnets on specific parts of the body can help alleviate pain, improve circulation, and promote healing.
They may be worn as bracelets, necklaces, or placed directly on the skin. Magnetic mattress pads or wraps how to use neodymium magnets for healing: Some people use neodymium magnets incorporated into mattress pads or wraps to sleep on or wrap around areas of discomfort, believing that the magnetic field can improve sleep quality and alleviate pain.
Magnetic jewelry: Wearing neodymium magnets in jewelry like bracelets or necklaces is another common approach. It’s claimed that the magnets’ close contact with the skin can promote healing and reduce pain.
Magnetic insoles: These are designed to be placed inside shoes, with the idea that the magnetic field can stimulate acupressure points on the feet, potentially providing relief from various conditions.
When using neodymium magnets for healing, keep the following in mind: Consult a healthcare professional: Before using magnets for healing purposes, especially if you have any underlying health conditions or are undergoing medical treatment, it’s crucial to consult with a healthcare provider.
Quality and safety: Ensure that the magnets you use are of high quality and properly coated to prevent skin irritation. Also, avoid using magnets near electronic devices or magnetic storage media, as they can interfere with their functioning.
Be cautious of claims: Be wary of extravagant claims about the healing powers of neodymium magnets. While some anecdotal evidence exists, scientific research on their effectiveness for healing purposes is not universally supported by scientific evidence.
The purpose of phosphating treatment:
The purpose of phosphating surface treatment of sintered NdFeB permanent magnets is two-fold. The first is to prevent corrosion during the process, and the second is to improve the surface epoxy wettability how to use neodymium magnets for healing.
1. Process anti-corrosion
Due to the low density and porous characteristics of the sintered NdFeB surface, exposed magnets will oxidize in the air, which is also called corrosion. Therefore, when the turnover and storage time of NdFeB magnets is too long and the subsequent surface treatment method is not clear how to use neodymium magnets for healing, it is very necessary and effective to use the phosphating process for simple anti-corrosion treatment.
The phosphating process is simple and requires no equipment investment. The phosphating production process consumes less, mainly acid, alkali and phosphating liquid. The production cost is low. As a process anti-corrosion how to use neodymium magnets for healing, it will not significantly increase the production cost of the magnet, and it can avoid storage period Magnet loss, return rate is high. After phosphating, the color of the product is uniform and the surface is clean.
It can be sealed in a vacuum, which greatly extends the storage time how to use neodymium magnets for healing. The storage method is better than the previous oil immersion and oiling storage methods. The complete phosphating film can resist oxidative corrosion in normal atmospheric environment. The subsequent surface treatment of phosphated magnet products is easy. The phosphated film can be completely removed by simple pickling. It will not have any adverse effects on subsequent surface treatments (such as galvanizing, nickel plating, etc.), and subsequent surface treatments can be completed at any time. Handling process.
2. Improve wetting performance
Some NdFeB magnets require epoxy glue bonding, painting, etc. The bonding force of epoxy organic compounds such as glue and paint requires the matrix to have good wettability. The phosphate film has good wettability with epoxy organic matter, so the phosphating process needs to be used to improve the wettability of the NdFeB magnet surface how to use neodymium magnets for healing. Good wetting properties can ensure the bonding force between epoxy glue, epoxy paint and magnets.
The principle and process flow of phosphating
The process of phosphating treatment on the magnet surface is: oil removal → water washing → pickling → water washing → surface conditioning → phosphating treatment → sealing and drying.
Oil removal and pickling are the same as before electroplating. Surface conditioning is a special surface treatment to adapt to the formation of phosphating film on the surface of NdFeB magnets. The surface conditioning of NdFeB magnets is generally soaked in weak acid to improve the alloy composition of the magnet surface to achieve the purpose of conducive to the formation of phosphating film.
The phosphating process is currently mainly produced using commercial phosphating liquid. Commercial phosphating solutions are divided into zinc-based, iron-based, manganese-based, binary how to use neodymium magnets for healing, ternary, multi-component and other varieties how to use neodymium magnets for healing. Each system has its own advantages and disadvantages.
Therefore, in the production and application of NdFeB phosphating, each magnet manufacturer Depending on the purchase price and usage effects, you will choose the supply variety you think is appropriate. Some NdFeB products require phosphating after galvanizing how to use neodymium magnets for healing. The phosphating after galvanizing should use a zinc-based phosphating solution or a zinc-containing multi-element phosphating solution.
The phosphating process is divided into three types in terms of temperature: high temperature, medium temperature and normal temperature. The high-temperature process generally has a thick film layer, and the phosphating film has a high density and a large thickness how to use neodymium magnets for healing; the normal temperature process generally has a thin film layer; the medium-temperature process is somewhere in between. Magnetic material manufacturers mostly use normal temperature processes, but normal temperature processes also require temperature control to ensure temperature stability (15°C-35°C).
Rust problem after phosphating
Some readers reported that magnetic materials will still rust after phosphating. There are many reasons for this phenomenon. For example, the concentration of phosphating agent in the phosphating pool is insufficient, resulting in the phosphating film being too thin or loose. , cannot isolate the air well how to use neodymium magnets for healing; the water is not washed clean after phosphating, or the acidity of the water washing tank is too high, resulting in acidic substances remaining on the magnetic material, and the acid destroys the phosphating film and causes rust; in addition, check whether the oil removal is complete , Unclear oil removal will also affect the phosphating effect.
In order to ensure the phosphating effect, special attention should be paid to the composition ratio of the phosphating liquid during the phosphating process to ensure the appropriate temperature how to use neodymium magnets for healing; the phosphating time should be controlled at 10-15 minutes; use hanging mounting or reduce the loading amount to ensure a certain amount of space between magnetic materials. The gap can be fully phosphated.
What is electrophoresis?
Electrophoretic coating is to immerse the parts in a water-soluble electrophoresis bath liquid, insert an anode and a cathode electrode into the bath liquid at the same time, and pass direct current between the two electrodes how to use neodymium magnets for healing, thereby producing an electrochemical reaction, causing the water-soluble coating to be evenly deposited on the parts, forming a An anti-corrosion coating composed of resin particles, or an anti-corrosion layer that forms a high molecular polymer.
The electrophoretic coating not only has a good bonding force with the surface of the porous magnet, but also is resistant to salt spray, acid, alkali and other corrosion. Compared with the spray coating, it has the following advantages:
1. High coating utilization rate. During the spraying process, a large amount of spray paint is scattered, and about half of the paint is lost. However, after electrophoretic coating uses ultrafiltration technology, the paint utilization rate can reach 90%-95%.
2. Electrophoretic paint is a water-soluble paint that does not require organic solvents, saves energy and raw materials, and reduces environmental pollution.
3. High production efficiency. After pretreatment, bonded magnet parts can be electrophoresed directly without drying, thus shortening the painting time.
4. Good coating effect on complex parts. Electrophoretic coating relies on the distribution of the electric field in the electrophoresis tank for electrodeposition. Since the deposited coating film has insulating properties how to use neodymium magnets for healing how to use neodymium magnets for healing, it can form a uniform coating on all parts of the part.
5. The coating has good quality, strong corrosion resistance and good bonding force.
Electrophoretic coating also has shortcomings:
1. The one-time investment cost is high, the maintenance and management of the electrophoresis tank solution is complex, and each process parameter needs to be carefully controlled.
2. Electrophoretic coating cannot cover defects on the magnet surface, such as holes, scratches, dents, etc., so the surface conditions of the product are required to be high.
3. Hooking and unhooking requires more manual labor.
Classification of electrophoretic coatings
Put the electrophoretic paint, including polymer resin, organic solvent, color suspended particles and water, into the electrophoresis tank, and stir them to form a uniform solution.
There are two types of electrophoretic coatings: anode coating and cathode coating. Anodic electrophoresis uses sintered NdFeB magnets as the anode. In this method, the base metal and surface treatment film (such as phosphating film) are precipitated and dissolved at the same time during the electrophoresis process how to use neodymium magnets for healing, which reduces the corrosion resistance of the electrophoretic deposited film. Therefore, in most cases Cathodic electrophoresis is used, that is, sintered NdFeB is used as the cathode and cationic electrophoretic paint is used. This paint is a water-soluble coating formed by using organic acids to neutralize synthetic resins containing amino groups.
The cathode electrophoresis layer uses organic acid as a neutralizing agent, which has low toxicity. The mechanical strength of the wet paint film itself and the bonding force with the workpiece are higher than those of the anodic electrophoretic coating. However, the cost of cathodic electrophoresis coating is high, and the electrophoresis tank liquid is acidic and corrosive to the equipment how to use neodymium magnets for healing. The cathode electrophoresis tank should be made of corrosion-resistant materials, such as stainless steel or acid-resistant plastic.
Process flow of sintering NdFeB electrophoretic coating
The process flow of electrophoretic coating is as shown below, which is mainly divided into three parts: surface pretreatment, electrophoresis and drying and curing.
A smooth and clean surface is the basis of high-quality electrophoretic coating, and the purpose of surface treatment is to create good surface conditions. The electrophoretic coating process is a complex chemical change process. As the coating is continuously deposited on the surface of the magnet, the components of the electrophoresis tank are also constantly changing. The solid components, electrophoresis tank liquid pH value, temperature, electrophoresis voltage, and electrode spacing, etc.
