Saw blades are the primary components of stone processing machinery and are crucial to the production effect of the machinery. Today we will explain to you the wear of stone machine saw blades.
Due to force and temperature reaction, saw blades often wear out after a period of use. The main forms of wear are: abrasive wear, local breakage, large-area breakage, shedding, mechanical scratches of the binder along the sawing speed direction, etc.
Abrasive wear: Diamond particles constantly rub against parts, the edges are blunted into a plane, the cutting performance is lost, and the friction increases. The heat of sawing will cause a thin graphitized layer to appear on the surface of the diamond particles, greatly reducing the hardness and aggravating the wear.
Local crushing: The surface of diamond particles is simultaneously subjected to alternating thermal stress and alternating cutting stress, which will produce fatigue cracks and local crushing, exposing sharp new cutting edges, which is a more ideal form of wear;
Large-area crushing: Diamond particles are subjected to impact loads when cutting in and out, and the more prominent particles and grains are consumed prematurely;
Shedding: The alternating cutting force causes the diamond particles to vibrate and become loose in the binder. At the same time, the wear of the binder itself and the sawing heat generated when the stone machine cuts the stone soften the binder and reduce the holding force of the binder. When the cutting force on the particles is greater than the holding force, the diamond particles will fall off.
Any type of wear is closely related to the load and temperature borne by the diamond particles.
