What principle is applied to laser rust removal and why is the effect of rust removal so good?

Now the industrial technology is more and more developed, the use of steel, in the Han Dynasty in China entered the Iron Age, the use of iron has a long history, and in modern times iron has also been put into large-scale use, such as in the construction of huge buildings will use a large number of steel, but the steel is easy to rust, which is a huge loss for the builder, because of the rusty steel use value.

It will be greatly compromised, not only will it erode the steel itself, but it will also pose a safety hazard to the construction project.

<> this has always been a problem that people want to solve, and the current way to remove rust is to spray paint the steel, or use sandpaper to grind the rust off, which is very inconvenient. in Belgium.

There is a scientific research company that has found a solution from the principle of steel rust, which is very convenient to use, much better than ordinary rust removal methods. Steel rust occurs due to a chemical reaction between the iron on the surface of the steel and the surrounding air, as well as moisture in the atmosphere.

This is how rust is generated.

Today's laser technology is also relatively developed, this company thought of using laser to eliminate rust spots, they made a laser rust removal machine QF-1000, this machine is not complicated, ordinary people can teach it to use normally. The laser derusting machine has 1000 watts, but how terrifying is this laser derusting machine?

The rust remover shoots a laser onto the rust-spotted steel, and the whole steel immediately looks brand new. The principle of this rust removal laser is to produce a very high temperature when irradiated, and these temperatures can change the impurities and rust just now from a solid state to a gaseous state, and the effect is immediately visible, and the place it has scanned can become smooth and new.

The temperature of the laser will not cause any damage to the steel itself, in fact, the temperature of the laser is specially set after repeated tests, it will only eliminate the layer of rust spots on the surface, and will not damage the steel under the rust spots, even if some small parts will not be damaged in the slightest under its scanning, this derusting machine is not priceless in the market, and you can buy such a laser derusting machine with significant rust removal effect.

This rust remover is in working efficiency with the traditional rust removal method.

It has improved more than tenfold. Rusty things will also be encountered in daily life, so its market is also very broad, and people on construction sites needless to say that they need to remove a rust artifact, so that when the steel is rusty, they don't have to work hard to remove the rust. Well, that's all for today, and we'll see you in the next issue!

Using the principle of physics, light energy is converted into other energy, and when the light energy reaches a certain level, it can be used to remove rust, and if you use a laser to remove rust, it is more thorough, so the effect is very good.

The principle is to use a laser to absorb the rust on the surface and then volatilize these substances. And it is precisely because of the characteristic of light pulse that such a good rust removal effect can be achieved.

This is called laser rust removal, which is instantly renewed, what is the principle?

Laser rust removal uses a laser beam to clean the surface of an object and remove dirt, coatings, oxide layers, etc. Its principle is to use the high energy density of the laser beam to absorb the laser energy on the surface of the cleaning object and produce rapid expansion to form an instantaneous vapor**, so that the impurities, oxides and other substances adsorbed on the metal surface are separated.

Specifically, when the laser beam is irradiated on the surface of the bent object, the high energy density of the laser will cause the local heating and expansion of the material on the surface of the object, forming tiny bubbles and producing a strong shock wave and a high temperature and high pressure reaction to peel off or destroy the attachments on the surface. This reaction only occurs within a certain depth of the surface and does not cause damage to the raw material and does not cause environmental pollution.

This technology can be used for surface cleaning, rust removal, degreasing, paint removal, decoating and other processes of metal products.

After the steel is soaked in the rust inhibitor, the rust remover penetrates into the steel surface along the cracks of the rust layer and the impurity layer, and dissolves and peels off the rust layer and the impurity layer. A variety of raw materials in this rust remover are adsorbed on the steel surface, rust layer and impurity layer, form a diffusion electric double layer at the solid-liquid interface, because the charge carried by the rust layer and the steel surface is the same, thus the mutually exclusive dry plexus action occurs, and the rust layer, impurities and oxide scale fall off from the steel surface.

Due to the excellent coherence, directionality and high brightness of the laser, the laser irradiation on the surface of the object to be cleaned can produce at least four effects: Vibration effect, that is, the use of a higher frequency pulse laser to impact the surface of the cleaned object, the beam is transformed into a sound wave and returned from the lower surface, interfering with the incident wave, thereby generating resonance and causing the dirt layer or condensate to vibrate and fragment; Thermal expansion effect, that is, the difference between the absorption coefficient of the substrate and the surface pollutants to a certain wavelength laser energy is used to make the pollutants absorb the laser energy, and the thermal expansion in an instant, forming a large detachment acceleration, overcoming the adsorption force of the substrate to the pollutants and falling off; Photodecomposition or phase transformation of molecules, that is, vaporization, decomposition, evaporation or detonation of dirt molecules in an instant, so that the surface dirt is loose and detached from the substrate surface with this action; The laser induces the generation of a plasma shock wave, through which the contaminants are removed.

Under these principles, the laser removes contaminants from the surface of the workpiece.

In academic terms, it is called laser cleaning.

Using the characteristics of high energy, high frequency and high power of the laser, the energy of kilowatts or even 10,000 watts is focused on a very small area, and the instantaneous high-power pulse is used to irradiate the surface of the workpiece to remove rust, paint, coating, etc.

The same is true for laser killing, but it requires stable beam transmission and well-controlled divergence angles, but the field of military lasers is not the same field as the above rust removal.

The energy of the laser beam loosens and sheds the rust oxide particles and forms Fe3O4, which is best to be treated with anti-corrosion.

The principle is mainly based on the fact that after the contaminants on the surface of the object absorb the laser energy, they either vaporize and volatilize, or are instantly heated and expanded to overcome the adsorption force of the surface on the particles, so that they can be separated from the surface of the object, so as to achieve the purpose of cleaning. Because it uses a laser to act directly on the workpiece, it does not use any chemicals or chemicals, and there is no direct contact with the workpiece, so it does not hurt your hands.

The cost of sand is low and extensive, but it is polluting to the environment; The rust removal is completely manual operation, and the surface roughness of the component after rust removal is small, and it is not easy to meet the requirements of friction coefficient. Sea sand should be salted before use.

It won't hurt your hands, the low power is not, and the high power may be a little hot.

Advantages and disadvantages of laser derusting machine, laser derusting is suitable for small area derusting, most of the cleaning high value-added products, such as: precision parts cleaning, aviation and aerospace components, military industry, nuclear power industry, parts micro-treatment, high-precision cleaning, environmental protection cleaning methods, high-precision industry cleaning, slide rail cleaning, shipyard parts cleaning, semiconductor processing, rollers, precision parts, welding welds. Laser cleaning equipment with mechanical arm laser rust removal can replace pickling and phosphating cleaning equipment, and can be used for stainless steel weld bead weld spot cleaning, titanium alloy cleaning, and welding limb cleaning.