总共有多少组数据:34
段长：17
Flat file
For watch repair , the first plane of a basic skills is filed . Operator at work to relax , comfort, space should not be squeezed in a small place. Case and vices of a high degree of work is also very important factor , and its height should be caught in the vise to keep the workpiece and the operator’s elbow height of the same position. Work should be the case with desktop vice , jaw width 60 mm is generally more appropriate ( Figure 1). For the clock maintenance , it is best to use 80 mm wide jaw vices, and to securely installed.
Cutting and filing , the hand to firmly hold the rasp of the handle, the other hand the palm to the face on the front FILES . In the process of cutting and filing to use the FILES file file push forward the full length of blade . But in return , do not add to the pressure in the rasp , often way way back in the rasp of improper damage to the workpiece . Attention should also avoid the use of rasp push forward too much pressure , pushing forward on the file when the rasp full pressure should remain constant.
Another important point is not to use the blunt of the rasp . FILE sharp teeth to file a good ” family on “to . For beginners or students who had the rasp to use the old , make their training a wrong impression , not only to enable them to do bad jobs , and make them develop a bad habit.
Use a rasp to file the new brass parts , it can be used for a long time, and the workpiece flat file is not difficult . Should be changing in the direction of cutting and filing , that the first front of pushing the rasp to the left , then right front of the push . Workpiece will produce the file lines cross , indicating that the local real file to the light reflected from the workpiece generated after dark lines , always keeping to the middle parts of this line, use this method you can file a flat piece to.
Filed side