Introduction of Straight Knife Sharpening Machine
Whether the blade ground by a straight knife sharpening machine is of good quality depends primarily on the grinding wheel. The grinding wheel is a major type of abrasive tool used in grinding processes.
A grinding wheel is a porous body made by adding a binding agent to abrasives, followed by drying and calcining. Different abrasives, binders, and manufacturing processes result in grinding wheels with very different characteristics, which have an important impact on grinding quality, productivity, and economy.
The characteristics of a grinding wheel are mainly determined by factors such as abrasive type, particle size, binder type, hardness, structure, shape, and dimensions. Let us examine the grinding wheel of the sharpener machine with Wanrootech. This information is intended to help those in need.
Types of Grinding Wheels
Corundum Type
Corundum-type abrasives include brown corundum (A), white corundum (WA), black corundum, and others. The main component of corundum-type abrasives is aluminum oxide (Al₂O₃), which has high hardness and good toughness.
These abrasives are suitable for grinding materials with good tensile strength, such as steel materials. Among them, brown corundum grinding wheels are widely used for rough and fine grinding of various metal materials due to their moderate price and stable performance.
Silicon Carbide Type
Silicon carbide-type abrasives include black silicon carbide (C), green silicon carbide (GC), and others. Silicon carbide abrasives have higher hardness than corundum, with sharp abrasive grains and good thermal conductivity, but poorer toughness.
They are suitable for grinding brittle materials such as cast iron and cemented carbide.
How to Choose a Grinding Wheel for the Sharpener
The choice of grinding wheel mainly depends on the following two factors. First is the abrasive type. We recommend white corundum because this abrasive does not heat up easily when the sharpener is working, followed by brown corundum or chrome corundum.
The second factor is the grit size of the grinding wheel. If the abrasive particles are too coarse, the blade edge grinding will not meet requirements, and the cutting edge may crack easily. If the grit size is too fine, the blade grinding surface is prone to burning, and grinding efficiency will also be low.
Grinding Wheel Classification Overview
There is a wide variety of grinding wheels. Based on abrasive type, they can be divided into ordinary abrasive grinding wheels (corundum (Al₂O₃), silicon carbide, etc.) and superhard abrasive grinding wheels (diamond and cubic boron nitride).
Based on shape, they can be divided into flat grinding wheels, bevel wheel grinding wheels, cylindrical grinding wheels, cup-shaped grinding wheels, dish wheels, and others.
Based on binding agent, they can be divided into ceramic grinding wheels, resin wheels, rubber grinding wheels, metal grinding wheels, and others.
Conclusion
Because the choice of grinding wheel is closely related to the sharpening effect of the sharpening machine, selecting an appropriate grinding wheel is essential to ensure normal operation of the sharpener machine.
The above is how Wanrootech selects the grinding wheel for the knife sharpening machine. Customers who have a need for a sharpening machine are welcome to contact us. We look forward to working with you and will provide you with quality products.
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