[China Glass Network] Nowadays, many construction projects and home decoration adopt tempered glass, which becomes a charming scenery. However, I have to admit that how to deal with the scratches of tempered glass is a slightly tricky problem. Next, we will tell you about the treatment methods and operation methods of tempered glass scratches. Let's learn together.
Repair principle
Grind first, then polish. The specific explanation is: For more serious scratches, first grind the abrasive pieces with a relatively large particle size (35μ), first grind the scratches, and then finely grind the pieces (20μ, 10μ, 5μ). Grinding, and then polishing with a pure wool polishing disc and polishing paste, after the repair area is polished, the glass scratch repair is over. Partial, small-scale repair can save cost and time, but the repair effect is not good; the repair area can be expanded to get a good repair effect, but it will increase the repair cost and time. Please choose the appropriate repair method according to the actual ideal goal.
Precautions before repair
1. During the scratch repair process, due to the continuous friction between the abrasive sheet, the polishing disc and the glass, the glass will continue to heat up, so pay close attention to the temperature of the repaired glass during the repair process. If it is overheated, it may cause the glass to burst. The simple method of judging is: often feel the temperature of the glass in the repair area with the hand, and some of the warmth is within the normal range. If you feel hot, you need to stop the work immediately, to flush or cool naturally, wait until the temperature Re-construction after landing.
2. In the process of scratch repair, there must be continuous water flow. The role of water flow is:
a. Wash the glass powder during grinding.
b. Improve the shearing force during grinding.
c. Cool the glass.
3. The grinding part in the scratch repair process is completed by using a graded fine grinding method. The abrasive material particles or the ground glass powder left over from the previous grinding process may cause new scratches in the next level of grinding process if not cleaned in time. This new scratch, It is not easy to be found during the operation until it is found after the subsequent polishing step, which will seriously affect the repair effect or reduce the repair efficiency. Therefore, the cleaning work during the operation is very necessary.
Scratch repair step
1. Determine the location of the scratch:
After determining the location of the scratches, thoroughly clean the entire glass surface with enough water and paper towels, preferably on the back of the glass.
2. Determine the standard of the degree of scratching of the glass and the combination of the abrasive sheet repair:
a, deep scratches: can be seen, the finger can feel the scratches.
Repair combination: It can be ground in green, pink, blue and orange abrasive sheets in turn, and then polished later.
b, moderate scratch: can be seen, the finger belly can not feel, can only use the fingernail to feel the scratches.
Repair combination: It can be polished in pink, blue and orange abrasive pieces in turn, and then polished.
c. Mild scratches: scratches that can be seen, but the nail cover does not feel.
Repair combination: It can be polished in blue and orange abrasive sheets in turn, and then polished later.
d. Mao: A scratch that can be seen at a special angle and that cannot be touched by hand.
Repair combination: Grind with an orange abrasive pad and then polish; or directly polish.
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