校对规在有效中径部分必需保持合适的直线度。他们在实际使用中，前端可能磨损较快。无论如何请使用以下推荐程序以帮助延长校对塞规的直线度寿命
1. Thoroughly clean both the ring and the setting plug in a good cleaning solution and jet blow dry ( or clean ultrasonically). Then visually inspect to make sure all foreign material in the thread has been removed and no nicks or burrs are present.
彻底清洗环规与校对塞规，并吹干或超声波清洗。然后观察所有螺纹内的外来物确认已被清除，并无划痕和毛刺。
2. Lubricate the setting plug with a thin film of light viscosity oil before inserting into the ring gage.折叠耳机
人型JY采集器用带清油的胶片润滑校对塞规
3. Turn the locking screw counter-clockwise until it is loosened.
4. Turn the adjusting screw clockwise, which opens the ring to a larger pitch diameter than the setting plug.
顺时针调节螺钉，这使环规开口，并使中径比校对塞规的大。
5. Turn the ring gage onto the setting plug all the way to the back (full form section) so that approximately one thread extends beyond the last thread of the setting plug. (This promotes more uniform wear over the entire thread length of the plug.)
旋转环规进入塞规后部（全形齿部分），使塞规的大约一牙留在外面（这使整个塞规螺纹
长度有教标准的磨损）
6. Turn the adjusting screw counter-clockwise until there is a slight drag between the ring and setting plug.反向旋转调节螺钉，直到塞环规间有轻轻的拉动
7. Turn the locking screw counter-clockwise until tight. This locks the adjusting screw so that the size of the ring gage remains fixed. There should now be a noticeable drag between ring and setting plug. Operations 6 and 7 may have to be repeated more than once to obtain the proper drag fit.
反向旋转锁紧螺钉，拧紧。这将锁定调节螺钉，并固定环规尺寸。现在应看到塞环规间有可见的拉动。步骤＃7和＃8可能要重复多次，以取得合适的拉动配合
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8. Turn the ring gage from the full form section onto the truncated section of the front. The drag should be approximately the same to both sections, which insures good flank angle contact.
将环规从全形齿部分旋到前端修正齿部分。拉紧力应在两部分间基本一样，这才能保证牙
形角是正确的
9. Remove the setting plug from the ring.
移走校对塞规
10. Now turn ring onto the setting plug 1-1/2 to 2 threads at the front. There should be some resistance or drag even at this short engagement. To test for taper or bellmouth, place the ring on its face on the workbench and test for shake or looseness with the setting plugs, being very careful not to damage these end threads
现在将环规旋入校对塞规前端1－1/2到2牙。这时会发现即使这样短的旋入，也会有一些阻力或拉力。为检验是否锥度或喇叭口，请将环规放在工作台上，用校对塞规轻摇，看其松紧度。请非常小心，不要伤到牙口。
11. Remembering the feel at the 1-1/2 to 2 thread engagements, turn the ring further onto the truncated section. The drag should remain approximately the same although it may be slightly greater at full engagement due to more flank contact.
记住旋入1－1/2到2牙时的感觉，并让环规继续在修正齿形部分前行。那种阻力应基本一致，虽然由于更多的齿面接触，会使阻力略有增加
12. Remove the ring from the setting plug and repeat operations 10 and 11 on the other side of the ring gage.
移下环规，调面，重复步骤＃10和＃11
13. The fit should be approximately the same on both sides of the ring to insure proper straightness.
Remember that if a setting plug is made or worn smaller at the front, it will falsely indicate taper or bellmouth in the ring gage. Setting plugs must be reasonably straight.
配合度应两面基本相同，以确保环规的直线度。
记住如果校对塞规尺寸做小了或前端磨损了，可能会错误的指示环规有锥度或喇叭口。校对塞规必须有精确的直线度
14. The minor diameter of a thread ring gage is normally checked with GO and NOT GO plain plug gages. These should be made to the minimum and maximum limits of the minor diameter of the ring gage, and to class X or XX cylindrical gage tolerance. The GO should enter through the ring and the NOT GO should not enter to assure that the minor diameter is correct after the ring is set to the proper pitch diameter.
螺纹环规的小径通常以光滑通止规检验。通常以环规小径的上下限，按X级或XX级公差制造光滑塞规公差
15. It is then standard practice to cover the adjusting screw and locking screw holes with sealing wax. This helps to prevent unauthorized tampering with the setting of the ring gage. Use green wax on the GO gage and red ax on the LO (NOT GO). This is not mandatory but provides an additional means of quick identification.
然后是标准步骤，用蜡封住螺纹孔。这以防未经授权去调整环规。用绿封通规，红封止规。这虽不是标准，但方便使用者快速判断
Tightness of Fitcofdm
图像识别系统
松紧度
There are no established torque values for the degree of drag. Some judgment and common sense must be used. The resistance or drag for a small size gage should be less than for a large size gage. A spin fit is obviously much too loose. Too tight a fit could damage or cause excessive wear on the ring or the setting plug. On properly made gages with accurate lapped threads it takes very little change in size to effect a noticeable difference in drag. Two different setting plugs both within class W tolerance may feel entirely different in the same ring gage. (One could be too tight and the other too loose.)
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