Calamitous accidents , by its paroxysm and cruelty , always are the focus that the society pays close attention to for its enormous shock strength and influence
2.
Possessing some unique features as high tensile strength , shock strength and bending strength , they are widely used in cutting various metals or nonmetal materials , thus achieving fast and economical results
3.
The products are made of selected high quality abrasi - ves and synthetic resin rein - forcing by special fabrics , possessing some unique features high tensile strength , shock strength and bending strenth . they are widely used in cutting various metal or nonmetal materials . thus achieving fast and economical results
4.
The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and , to some extent , influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering , reducing thermal expansion coefficient of bond , reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core , expanding suitable sintering temperature range of sic grinding tool
5.
Experiments show the optimum content of pyrophyllite and dolomite is 30 % ; in contrast to original bond , the refractory point of bond is reduced by 55 , the average coefficient of thermal expansion is reduced by 30 % and flexural strength and shock strength of grinding tool are increased by 27 % and 22 % respectively
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