石材框架砂锯锯切力特性分析

本文从岩石的裂纹扩展特性、材料强度特性及压头点载荷侵入破岩特性等方面入手,对单颗粒的切削力进行了深入分析,得出单颗粒切削深度是影响锯切力的主要因素的结论.通过对单颗粒切削深度影响因素的讨论,得出锯切条件及工艺参数与锯切力的关系结论:锯切力将随落锯速度的增大而增大,随锯切速度的增大而减小.锯切力实验结果与理论分析结果相一致.研究结果可为锯切机理的进一步研究及设备与工艺的改进提供理论依据.

ANALYSIS OF CHARACTERISTICS OF SAWING FORCE OF FRAME SAW FOR SLABBING STONE

Based no knowledge of properties of crack expansion,strength of materials and point indentation of stone, this paper analyses the sawing force of single abrasive in various respects. The conclusion comes to show that cutting depth cf single abrasive is a main factor affecting cutting force.By means of discussion of various factors affecting the cutting depth of single abrasive, the relation-ships among the sawing force, sawing condition and technological parameters are as fellows, sawing force will increase as the sawing speed decreases; it will decrease as the sawing speed increases. The results of the experiment correspond to the theoretical analysis.