Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of novel superhard abrasives
The invention discloses a preparation method of novel superhard abrasives, which comprises the following steps: 1, mixing Al, Mg, B and TiB2 powders, putting the obtained mixture into a ball mill to carry out mechanical alloying, so that aluminum magnesium titanium boron powder is obtained; 2, adding an organic binder into the obtained aluminum magnesium titanium boron powder to carry out granulating, so that aluminum magnesium titanium boron mixed granules are obtained; 3, mixing the aluminum magnesium titanium boron mixed granules with carbon powder, and carrying out cold pressed molding; 4, carrying out hot pressed sintering on an aluminum magnesium titanium boron-carbon powder cold-pressed blank material, and removing the carbon powder, so that a large granular aluminum magnesium titanium boron superhard abrasive is obtained; and 6, breaking, smashing and sieving the large granular aluminum magnesium titanium boron superhard abrasive, so that superhard abrasives with different granularities are obtained. The preparation method disclosed by the invention has the advantages of simple preparation process, lenient synthetic conditions, low synthesis temperature, less energy consumption, low production cost, and the like; and the aluminum magnesium titanium boron superhard abrasives prepared by using the method have excellent performances such as high hardness, low density, low friction coefficient, good self-lubrication, high temperature oxidation resistance, and the like.
Preparation method of novel superhard abrasives
The invention discloses a preparation method of novel superhard abrasives, which comprises the following steps: 1, mixing Al, Mg, B and TiB2 powders, putting the obtained mixture into a ball mill to carry out mechanical alloying, so that aluminum magnesium titanium boron powder is obtained; 2, adding an organic binder into the obtained aluminum magnesium titanium boron powder to carry out granulating, so that aluminum magnesium titanium boron mixed granules are obtained; 3, mixing the aluminum magnesium titanium boron mixed granules with carbon powder, and carrying out cold pressed molding; 4, carrying out hot pressed sintering on an aluminum magnesium titanium boron-carbon powder cold-pressed blank material, and removing the carbon powder, so that a large granular aluminum magnesium titanium boron superhard abrasive is obtained; and 6, breaking, smashing and sieving the large granular aluminum magnesium titanium boron superhard abrasive, so that superhard abrasives with different granularities are obtained. The preparation method disclosed by the invention has the advantages of simple preparation process, lenient synthetic conditions, low synthesis temperature, less energy consumption, low production cost, and the like; and the aluminum magnesium titanium boron superhard abrasives prepared by using the method have excellent performances such as high hardness, low density, low friction coefficient, good self-lubrication, high temperature oxidation resistance, and the like.
Preparation method of novel superhard abrasives
ZHANG FENGLIN (Autor:in) / BAI KUN (Autor:in) / ZHOU YUMEI (Autor:in) / HUANG HUIPING (Autor:in) / WANG CHAOCHAO (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
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