The correction method of stress

Metal circular saw blade correction method usually have cold school school, thermal method and comprehensive method of three kinds:

1, cold calibration method: this method is only for saw blades matrix partial pressure, but not heating;

2, hot correction method: to local heating of saw blades matrix, but not pressure;

3, synthesis: part pressure and heating for saw blades matrix;

Above three methods are correction saw blades matrix stress is the most effective means, but generally will only use cold calibration method, specifically how to implement, can refer to the following description:

Metal circular saw blade matrix stress cold calibration method with hammering method and rolling method

A, hammering method correction method

1, if during the test, need to increase the stress value, it should be from the hammer metal circular saw blade basal body center position, until the blade diameter about two-thirds, shall be stopped; It is important to note that the use of hammer hammer head is round, must be in the range of all the places are in the same hammer dynamics and drop point;

2, if it is found that the stress value is too large, it will have to reduce the numerical, specific methods: hammer with the first step, but the location of the hammer from the edge of saw blade matrix, and distance from a third to the outer diameter of prescription can be;

B, roller pressure correction method

Roller pressure correction method of saw blade is made of two parallel device of the same diameter roller wheel, as shown in chart 1, in this step we need to pay attention to one point: shaft must use the same motor driven, so that can protect the absolute synchronization, if out of sync, will seriously affect the effect, also is the direction of rotation must be the opposite.

1, stress, such as insufficient, need to increase: from one-third to two-thirds the diameter metal circular saw blade substrate position, use the roller pressure 2 ~ 3 times.

2, stress if slants big, the need to reduce: position on the edge of the blade matrix with the roller press 2 ~ 3 times, pay attention to the change of stress value.