Necessary items: toothpaste, absorbent cotton, silk cloth (absorbent cotton is not needed), colorless shoe polish or colorless leather cleaning brightener (floor wax is thinner), soft, clean and smooth pad (the area is larger than CD, such as mouse pad).
~5wk+f'JDs|！ W? W Optional items: a small electric drill (it is best to rotate at a low speed, which is easy to damage the disc if the rotation speed is too high. If not, replace it with a toy motor of more than 3W), a pair of 5×20mm flat head machine screws and matching nuts, two 30mm metal washers (with an inner diameter of 6mm) and some silk cloth.
7jW？ O{ Zhengzhou University, Zhengzhou University Forum, Zhengzhou University Forum, Zhengzhou University Student Forum, Golden Age Community, Zhengzhou University Student Community, Golden Age Forum, Zhengzhou University Alumni Forum, Golden Age Forum, Zhengzhou University Postgraduate Forum, Zhengzhou University Postgraduate Entrance Examination, then put the CD on a mat, use toothpaste as abrasive, and grind it on the data surface of the CD with absorbent cotton or silk cloth. After grinding, the surface of the CD looks like a layer of fog. This kind of scratch like fog has the greatest influence on the data reading of the CD, so the CD is "basically scrapped" after grinding, but don't be nervous. As the saying goes, everything has its vanquisher, and there is also a magic weapon-colorless shoe polish. Apply colorless shoe polish to the fog with clean absorbent cotton, and then wipe off the shoe polish with clean absorbent cotton ... Has the fog been eliminated? Now your CD can take off again! Zhengzhou University Forum 8kf% b(| j)g
The effect is good, but it takes a lot of effort. One or two discs will do. Wouldn't it be tiring if there were too many discs? Don't worry, you can use a hand drill to help polish at this time. Clamp two metal gaskets with 8mm thick silk cloth, fasten them with screws, and cut the silk cloth into a grinding disc with a diameter greater than 2mm of the gasket, as shown in figure 1. This self-made polishing wheel can be used by clamping it on a hand drill. It should be noted that the polishing direction must be along the radial direction of the optical disc, as shown in Figure 2. Zhengzhou university forum kVOf5]I
Compared with several defogging waxes, colorless shoe polish is the best. If the scratches on the CD are few and thin, you can directly wax them with shoe polish. Rough scratches can't be helped, they need to be polished. 6. How to clean the laser head of the optical drive? The CD-ROM drive on the computer has been used for a long time, and you will find that its disk reading ability will be lower and lower, and some disks cannot be read. This may be because there is a lot of dust on the surface of the laser head of the optical drive. If the laser head of the CD-ROM drive is polluted by dust, the laser beam emitted by it will be relatively weakened, which will lead to the decline of the fault-tolerant performance of the CD-ROM drive, the laser beam intensity required for normal reading can not be reached, and sometimes even the normal CD can not be read. Even if it is read out, the speed will automatically decrease continuously. The solution is to clean the laser head. There are generally two ways to clean the laser head, one is automatic cleaning and the other is manual cleaning. Automatic cleaning method is simple, but the effect is not as good as manual cleaning, which is more troublesome, but the effect is very good.