Manufacturer's low-cost direct selling grinding wheel

  Introduction to grinding wheel:
Grinding wheel is the most important kind of grinding tool in grinding
Grinding wheel is a porous body made by adding binder into abrasive, pressing, drying and roasting
Due to the different abrasive, binder and manufacturing process, the characteristics of grinding wheel are very different, so it has an important impact on the machining quality, productivity and economy of grinding
The characteristics of grinding wheel are mainly determined by abrasive, particle size, binder, hardness, structure, shape and size

1
classification:
According to the abrasive used, it can be divided into ordinary abrasive (corundum, silicon carbide, etc
) grinding wheel, natural abrasive, superhard abrasive and (diamond, cubic grinding wheel, boron nitride, etc
) grinding wheel;
According to the shape, it can be divided into flat grinding wheel, bevel grinding wheel, cylindrical grinding wheel, cup-shaped grinding wheel, disc-shaped grinding wheel, etc; According to the bond, it can be divided into ceramic grinding wheel, resin grinding wheel, rubber grinding wheel, metal grinding wheel, etc
The characteristic parameters of grinding wheel mainly include abrasive, viscosity, hardness, binder, shape, size, etc

2
type:
Resin Grinding Wheels
Double tower grinding wheel
Gongli resin grinding wheel
Sanlu resin grinding wheel
Bendable grinding disc
Xingang resin grinding wheel
Silver image resin grinding wheel
Jinxiang resin grinding wheel
Sumo grinding wheel
Ceramic grinding wheel
Parallel grinding wheel
Special shaped grinding wheel
Bowl shaped grinding wheel
Dished grinding wheel
3
how to select:
The most commonly used abrasives are brown corundum (a) and white corundum (WA), followed by black silicon carbide (c) and green silicon carbide (GC), and the rest are chrome corundum (PA), single crystal corundum (SA), microcrystalline corundum (MA) and zirconium corundum (ZA)

Brown corundum grinding wheel: brown corundum has high hardness and toughness
It is suitable for grinding metals with high tensile strength, such as carbon steel, alloy steel, malleable cast iron, hard bronze, etc
this kind of abrasive has good grinding performance and wide adaptability
It is commonly used for rough grinding with large margin
It is cheap and can be widely used

White corundum grinding wheel: the hardness of white corundum is slightly higher than that of brown corundum, while its toughness is lower than that of brown corundum
During grinding, the abrasive particles are easy to break
Therefore, the grinding heat is small
It is suitable for manufacturing grinding wheels for fine grinding quenched steel, high carbon steel, high speed steel and grinding thin-walled parts
The cost is higher than that of brown corundum

Black silicon carbide sand wheel: black silicon carbide is brittle and sharp, and its hardness is higher than that of white corundum
It is suitable for grinding materials with low mechanical strength, such as cast iron, brass, aluminum and refractory materials

Green silicon carbide sand wheel: green silicon carbide has higher hardness and brittleness than black silicon carbide, sharp abrasive particles and good thermal conductivity
It is suitable for grinding hard and brittle materials such as cemented carbide, optical glass and ceramics

Selection of granularity
When grinding with coarse-grained grinding wheel, the production efficiency is high, but the surface of the workpiece is rough; When grinding with fine grain grinding wheel, the workpiece surface roughness is better and the productivity is lower
On the premise of meeting the roughness requirements, the coarse-grained grinding wheel should be selected as far as possible to ensure high grinding efficiency
Generally, coarse-grained grinding wheel is used for rough grinding, and fine-grained grinding wheel is used for fine grinding
The general use range of abrasive grain size is 36 \\46 \\general flat grinding, cylindrical grinding and centerless grinding
Selection of hardness
When grinding soft materials, a hard grinding wheel shall be selected, and when grinding hard materials, a soft grinding wheel shall be selected;
When grinding soft and tough nonferrous metals, the hardness should be soft;
Hardness code table of abrasive tools gb/t2484 &mdash& mdash; one thousand nine hundred and ninety-four
The hardness of abrasive tools is from soft &mdash& mdash;& mdash;& mdash;－ hard
4: Cleaning method:
Emery grinding wheel shall be used to polish the belt during production
Generally, the grinding wheel shall be removed for cleaning after 5-7 days of operation
(there are polished rubber debris on it, which is tightly attached to the emery surface after high-temperature friction, so it is difficult to clean
)
Cleaning requirements:
1
It should be environmentally friendly, without ketones and halogenated hydrocarbons

2
Do not damage the emery wheel
5
installation and instructions:
The grinding wheel must be carefully inspected and identified before installation
The steps of inspection and identification are:
1
Check whether the brand of grinding wheel is correct and whether it conforms to the performance, shape and size of all selected grinding wheels

2
Check and identify the appearance and structure of the grinding wheel
Observe whether the appearance of the grinding wheel is damaged (or cracked) with eyes
Grinding wheels with damaged appearance (or cracks) shall not be used
In addition, both ends of the grinding wheel shall be flat without obvious skew

3
Check and identify the internal cracks of the grinding wheel
Hold the grinding wheel in hand and tap the grinding wheel blade with a wooden hammer to listen to its sound
The grinding wheel without cracks makes a clear sound, while the grinding wheel with cracks makes a hoarse sound, so it cannot be used