What equipment is used for polishing stainless steel bands

The materials required for stainless steel polishing generally include: "polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, thread cloth wheel" and so on.

At present, there are several commonly used stainless steel polishing methods:

1 mechanical polishing mechanical polishing is a polishing method that relies on cutting, plastic deformation of the surface of the material to remove the convex part after being polished and obtain a smooth surface, generally using oil stone strips, wool wheels, sandpaper, etc., mainly manual operation, special parts such as the surface of the rotary body, you can use auxiliary tools such as turntables, and the method of superfine grinding and polishing can be used with high surface quality requirements. Superfinishing grinding and polishing is the use of special abrasives, in the grinding and polishing liquid containing abrasives, pressed on the surface of the workpiece to be processed, for high-speed rotary motion. The surface roughness that can be achieved with this technology is the highest among all polishing methods.

This method is often used in optical lens molds.

2 Chemical polishing Chemical polishing is to make the microscopic convex part of the surface of the material in the chemical medium preferentially dissolve the concave part, so as to obtain a smooth surface. The main advantage of this method is that it does not require complex equipment, and can polish workpieces with complex shapes, and can polish many workpieces at the same time, with high efficiency. The core problem of chemical polishing is the preparation of polishing slurry.

The surface roughness obtained by chemical polishing is generally 10 m

3 Electrolytic polishing The basic principle of electrolytic polishing is the same as chemical polishing, that is, the tiny protruding part of the surface of the material is selectively dissolved to make the surface smooth. Compared with chemical polishing, the effect of cathodic reaction can be eliminated, and the effect is better. The electrochemical polishing process is a two-step process:

1) Macroscopic leveling The dissolved products diffuse into the electrolyte, and the geometric roughness of the surface of the material decreases, ra 1 m(2) Low-light flattening anodic polarization, surface brightness increase, RA 1 m

4 Ultrasonic polishing The workpiece is put into the abrasive suspension and placed together in the ultrasonic field, relying on the oscillation of ultrasonic waves to make the abrasive grinding and polishing on the surface of the workpiece. The macroscopic force of ultrasonic machining is small and will not cause deformation of the workpiece, but it is difficult to make and install tooling. Ultrasonic machining can be combined with chemical or electrochemical methods.

On the basis of solution corrosion and electrolysis, ultrasonic vibration is applied to stir the solution to detach the dissolved products on the surface of the workpiece, and the corrosion or electrolyte near the surface is uniform; The cavitation effect of ultrasonic waves in liquids also inhibits the corrosion process and facilitates surface brightening.

5 Fluid polishing Fluid polishing relies on high-speed flowing liquid and the abrasive particles it carries to wash the surface of the workpiece to achieve the purpose of polishing. Common methods are: abrasive jetting, liquid jetting, hydrodynamic grinding, etc.

Hydrodynamic grinding is hydraulically driven, which causes the liquid medium carrying abrasive particles to reciprocate across the surface of the workpiece at high speed. The medium is mainly made of special compounds (polymer-like substances) with good flow at lower pressures and mixed with abrasives, which can be silicon carbide powders.

6 Magnetic grinding and polishing Magnetic grinding and polishing is the use of magnetic abrasives to form an abrasive brush under the action of a magnetic field to grind the workpiece. This method has high processing efficiency, high processing efficiency, easy control of processing conditions, and good working conditions. With suitable abrasives, the surface roughness can be achieved.

What to do if the watch strap is scratched:

1. As the process of the surface of the case, there are basically two kinds: polished and sanded, or both, and the scratches on the watch case should be repaired according to the original process. However, if there are deep hard scratches, it will be more troublesome, because neither polishing nor sanding techniques are enough to polish away such scratches.

2 The local deep scratches on the case or strap need to be done locally before repairing, depending on the location, such as the case side of the case, it is even possible to use a fine small file, more is to use oil stones, and then under the magnifying glass, carefully boring the deeper scratches, if there are deep scratches, it is necessary to focus on polishing the local area with oil stones. This needs to be carried out under a magnifying glass, the purpose is to evenly smooth the scratches, when the scratches are basically ground to be smoothed, choose sandpaper with the right particle size, and grind along the original sanding pattern, usually this line is radial with the dial as the center, so this is a careful work, to a little bit, the grinding effect will be good and realistic. It is recommended to use the kind of sandpaper used in the jewelry industry, preferably imported, such as German Warrior brand water sandpaper.

3 hand-held tools are also particular, it is recommended to use a hemostat on the surgical operation, only take a small piece of sandpaper, fold it in half and clamp it with a hemostat, parallel to the original texture to do sanding, sapphire glass is relatively hard, you can not consider it, but the shell of the watch is stainless steel, you must pay attention to it when operating, do not scratch it, if necessary, you can cover it with adhesive tape. On the technical side, it is necessary that all the sand patterns go all the way around, and they all start from the center of the dial and are radial.

4 All scratches on the watch case and strap can be removed or the appearance of the watch can be refurbished in this way. The straight-line shape of the pattern is easier to do, if the pattern is concentric, then it should still be done by using electric machinery.

5. It is not difficult to fix the scratches on the case strap with sandpaper yourself, as long as you are careful and steady, you can do it; But for the surface is polishing process, then you must use a cloth wheel polishing machine, and ordinary people can't do it.

6 For the case and strap with sanding and polishing process, you should first do sanding and polishing when trimming, and then polish and polish, but you need to cover the sanding parts that have been trimmed.

Precautions. If the watch needs to be polished, it is recommended that you go to a professional watch repair center for maintenance.

Just wipe with a soft cloth and vigorously! If there is rust, you can wipe it with gasoline first, and then wipe it vigorously with a soft cloth.

If there are deep scratches, it is necessary to focus on polishing with oil stones in the local area. This needs to be carried out under a magnifying glass, the purpose is to evenly smooth the scratches, when the scratches are basically ground to be smoothed, choose sandpaper with the right particle size, and grind along the original sanding pattern, usually this line is radial with the dial as the center, so this is a careful work, to a little bit, the grinding effect will be good and realistic.

All scratches on the watch case and strap can be used in this way if you want to remove them or give the watch an innovative beauty treatment. The straight shape of the texture is easier to do, assuming that the pattern is concentric, then it should still be done by using electric machinery.

Local deep scratches on the case or strap need to be done locally before repairing, depending on the location, such as the case side, it is even possible to use a fine small file, more often with a stone stone, and then under the magnifying glass, carefully boring the deeper scratches.

How to remove scratches on the watch case and strap: It is not difficult to repair the scratches on the case strap with sandpaper yourself, as long as you are careful and steady; However, regarding the surface is a polishing process, it is necessary to use a cloth wheel polishing machine, and it is recommended to send it to a professional watch care base.