Introducing the abrasive

The abrasive material is subject abrasive. When using abrasive for grinding, it plays the role of cutting edge. In the various elements constituting the abrasive, which can be a key element of abrasive grinding.

Physical and chemical properties of the abrasive abrasive manufacturing process also has a significant impact. Since the ceramic fired at high temperatures with the need, and thus part of its abrasive quality indicators project (such as chemical composition, magnetic content, etc.) requirements than other bonded abrasives more stringent.

In order to ensure product quality ceramic abrasive and avoid possible waste, Abrasives factory into the plant's need for abrasive to make the necessary physical and chemical testing, confirm their compliance with the relevant national standards, it can be put into production.

Physical and chemical characteristics of abrasives and abrasive performance relational relationship with ceramic abrasive manufacturing process

Hardness is the key feature can be grinding, abrasive hardness must be higher than the hardness of the work material

Brittle different abrasive grinding have different requirements brittle, in general, less brittle abrasive suitable for large amounts of grinding mill in addition, such as shortage of grinding, cutting, grinding and so on. The brittleness of the abrasive, suitable for grinding and finishing grinding

Higher strength intensity is high strength abrasive grinding material to use to grind

Thermal stability at high temperatures grinding zone, should maintain a certain physical and mechanical properties, in order to continue the grinding process of the crystal structure and other characteristics should not affect the firing temperature

Abrasive and chemical stability of the material being processed is not easy to chemically react with each other in order to avoid the proliferation, adhesion and cause chemical blunt and abrasive clogging abrasive grains under the action of the sintering atmosphere with low-melting binder material, abrasive should no decomposition, oxidation or other chemical composition can change its properties. Especially for silicon carbide abrasive easily decomposed in the firing atmosphere and binding agent component more attention should be paid

Chemical composition and mineral composition of the changes will affect the basic properties of the abrasive, thus affecting the grinding performance of abrasive abrasive such as chemical composition and mineral composition changes, increases impurities, cross a series of ceramic abrasive effect on the manufacturing process, increase the likelihood of foam, black heart, cracks, deformation, etc.

When capillarity (abrasive at room temperature and high temperature wettability) blend, such as abrasives often wettability is bad, it will affect the bond Vice materials and uniform distribution of abrasive material between vice and, during firing, such as wet abrasive high temperature is bad, it will affect the flow and distribution of the binding agent, which affects the binding agent and abrasive bond strength

Have a certain effect of surface topography and micro-defects on the strength of brittle and abrasive, especially micro-cracks, holes and other micro-surface roughness greater impact than the smooth surface of the abrasive grains better adhesion binding agent, it should therefore be based abrasive surface topographical features to choose different characteristics of binding agents

The bulk density of the material forming the bulk density of the impact, in particular when the density of the molding pressure control, will affect the density of the abrasive bad, thus affecting the hardness and abrasive organizations

Changes in the composition consisting of the abrasive particle size is too large, it will abrasive grinding efficiency, surface roughness influential abrasive particle composition is unstable, it will affect the stability of abrasive hardness, the more significant for fine-grained abrasive

Magnetic content will form a magnetic sensitive material after high temperature firing in the hard abrasive points will be grinding surface quality deterioration, increasing burns, hard-dotted road surface roughness and the possibility of the formation of its color It is different from other parts of the abrasive, abrasive affect appearance.

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