Applicable Flygt Pump Models of This Mechanical Seal:
● 2070(Pump)
● 2095(Pump)
● 2012.040(Pump)
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*Related Introduction*
What kinds of abrasives are commonly used in maintenance?
Various abrasives have different characteristics. The commonly used abrasives for grinding seal rings include:
①Alumina series Alumina series abrasives have white crystals. Pure alumina (AI2O3) is commonly known as chromium corundum, (Cr2O3) is called chromium corundum. The most commonly used is chromium corundum. In the initial grinding process, 100 corundum and boron carbide are used. The particle size is W14. -W40, W14－W7 for semi-finishing, W5-W1 for fine grinding
②Carbide system mainly includes pure silicon carbide (Sic), which is green, black when there are trace elements, and boron carbide (BC), whose black hardness is higher than silicon carbide and lower than diamond. There is also the diamond series.
The correct choice of abrasive is very important, and the abrasive is selected according to the hardness of the workpiece to be ground. The hardness of the abrasive determines the speed and surface roughness of the sealing ring. Commonly used are corundum and boron carbide. The particle size is W14-W40 for preliminary grinding, W14-W7 for semi-finishing, and W5-W1 for fine grinding.
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