Common types of grinding tools and their introduction

1. Sandbelt:

Sand belt is a type of circular coated abrasive tool installed on a sand belt grinder, which operates at high speed and plays a grinding role. Therefore, it is called a soft grinding wheel. The main difference between paper sanding tape and cloth sanding tape is that the former is based on paper, while the latter is based on cloth.

2. Sand circle:

The sand ring is actually a small sand belt made by the spiral joint method, which is composed of two layers of substrate and sand cloth. The inner layer is treated cloth or paper, and the outer layer is sandcloth or sandpaper used for grinding. It is directly attached to a tool called ‘tire inflation’ for use.

3. Sand tray:

Also known as vulcanized fiber grinding discs, grinding discs, high-speed grinding discs, etc., it is a circular coated abrasive tool made of high-strength steel paper (i.e. vulcanized fibers), synthetic resin as a binder, and artificial abrasives bonded to the substrate.

4. Page wheel:

A wheel shaped coated abrasive tool made of rectangular sandcloth (paper) blocks, one end fixed to a central axis or flange.

5. Water resistant sandpaper:

Also known as water sanding paper or water sanding paper, it is named because it can be immersed or polished in water during use. Water resistant sanding paper is a type of abrasive tool made from water resistant paper or treated water resistant paper as the substrate, paint or resin as the binder, and corundum or silicon carbide abrasives are firmly adhered to the substrate, with two shapes: leaf and roll.

6. Dry sanded paper:

A type of abrasive tool made by adhering artificial or natural abrasives to the substrate using paper as the substrate and animal glue as the binder. Because it is commonly used for polishing and polishing woodworking, it is also known as sandpaper. The beginning of grinding tools mainly has two types: leaf shaped and roll shaped.

7. Dry matte cloth:

Coated abrasives with cotton fabric as the substrate and animal glue as the adhesive. It is the main product of coated abrasives, accounting for over 80% of production.

8. Cutting blade:

The resin grinding wheel with glass fiber mesh inside the grinding tool has high tensile strength, impact strength and Flexural strength. Due to its high cutting efficiency, good safety, and low price, it is widely used in building material processing, metal rod, pipe cutting, etc.

9. Cymbal shaped grinding wheel:

Also known as high-speed grinding disc, a multi-layer fiber resin grinding wheel that uses fiber fabric as a reinforcing material. It is mainly installed on the high-speed portable Bench grinder, which is used for cleaning welds, welding spots, burring, flash and metal surface defect grinding. It is an efficient grinding wheel for free grinding. The usage speed is above 70-80m/s.

10. Felt wheel:

Wool polishing wheel, abbreviated as wool wheel. A necessary wheel for glass polishing, used for the final process of glass polishing. It can play a role in eliminating scratches and brightening, and can also be used as one of the combined polishing wheels to eliminate shallow surface scratches on glass. The wool polishing wheel has good physical properties, strong resistance to tensile cracking, and high hardness. The appearance is pure white, with a soft and hard feel on the outside and a certain elasticity on the inside. The characteristics of glass polishing wool wheel are high polishing brightness, fast polishing speed, good chemical activity, no scratches on the glass, no pollution to the environment, and strong grinding force with even adhesion

11. Diamond saw blade:

The raw material is a high-speed cutting tool composed of precision steel plate, alloy powder, and industrial diamond. Widely used in the stone processing industry.

12. Bolt fastening grinding wheel:

Widely used in grinding and processing industries such as automobiles, tractors, and bearings. The characteristic is that it adopts a surface grinding process. Grinding tools with different shapes such as atmospheric hole grinding wheels and slotted grinding wheels can be made, greatly improving the grinding performance of the grinding wheel.

13. Resin heavy load rough grinding wheel:

Heavy load grinding wheel, also known as heavy load grinding steel billet grinding wheel. It is a specialized grinding wheel made of coarse grained abrasive and resin binder, with a diameter of 500-600mm. It is used for grinding under a grinding pressure of 250-1000kg. The usage speed is above 50-80m/s. The heavy-duty grinding wheel is installed on a dedicated semi-automatic or automatic grinding machine for grinding steel ingots, billets, steel plates, and plated parts. Its grinding efficiency is high and the grinding ratio is large; The grinding wheel itself has the advantages of high strength, high hardness, and coarse particle size.

14. PVA grinding wheel:

Also known as polyvinyl formal grinding wheel, it is a grinding wheel formed by acetalization of polyvinyl alcohol and formaldehyde as a binder under the catalysis of hydrochloric acid at a certain temperature environment. It is a polishing tool with multiple pores and elasticity, suitable for polishing metal and jade crafts. It is most suitable for polishing tough and difficult to grind materials such as stainless steel and copper alloys, as well as parts with complex shapes. The operating speed is generally below 35m/s and is only suitable for dry grinding situations.

15. Honing wheel:

The honing wheel is also known as the gear epoxy resin honing wheel. It is a grinding tool that uses epoxy resin binder and is directly cast into the original mold. The honing wheel is specially designed for precision machining of quenched gears. It is used to remove the oxide layer on the working surface of quenched gears and slightly correct the deformation of quenched gears, which can reduce gear roughness, improve work stability, and reduce gear meshing noise.

16. Mirror grinding and polishing wheel:

It is a fine-grained grinding wheel with a large amount of graphite polishing agent and high elasticity, which can achieve a surface roughness of Ra0.010-0.008 for machining workpieces μ m. Mirror grinding wheels are used for micro edge cutting and friction polishing to create a high surface finish for the workpiece, hence they are specifically designed for the final polishing of dry precision parts.

17. Mesh sandcloth:

It is a precision polishing tool. It is a special abrasive tool made of rayon, Synthetic fiber or glass filament mesh cloth as the matrix, synthetic resin or varnish as the binder, and the abrasive is bonded to the matrix.

18. Solid abrasive:

Generally, it is made by mixing various abrasive powders with various oil substances. It is suitable for manual polishing, as well as polishing on semi-automatic and automatic polishing machines.

19. Liquid abrasive:

Made by adding abrasive micro powder into emulsified fat solution. Mostly used for semi-automatic and automatic polishing, artificial abrasives can improve grinding and grinding capabilities, and perform precision machining on workpieces. This abrasive has good adhesion ability and has the effect of lubricating and cooling the workpiece. Reduce wear on polishing wheels. The addition of liquid abrasives is generally achieved by spraying with a low-pressure or high-pressure spray gun, which can ensure a uniform and continuous addition of the liquid.

20. Graphite cloth:

The cloth made by coating graphite on the fabric is woven on a weaving machine. It has excellent high-temperature resistance and softness. And it has a certain strength. It is a fireproof cloth for asbestos cloth in the metallurgical industry and an ideal substitute for flame isolation cloth. It is used in some machines to reduce Sliding friction by utilizing the lubricating property of graphite layer.

21 Oil stone:

Oil stone is a fine-grained grinding stone.

22. High speed enhanced cutting blade grinding wheel:

High speed cutting blades are developed based on ordinary cutting blades according to grinding process requirements, and have advantages such as high cutting efficiency, good impact resistance, and bending resistance. At present, it has developed from cutting small metal materials to cutting large-sized steel plates. The specifications of grinding wheels are increasing, and the output is also increasing, second only to rough grinding grinding wheels.

23. Diamond soft grinding discs:

Soft grinding disc is a flexible diamond grinding tool with resin as the bond. The back side is pasted with Hook-and-loop fastener cloth, which is glued to the joint of the hand-held grinder. It is used to grind and polish the hard to machine curved surface of granite and other hard and brittle objects Diamond soft grinding disc is a flexible machining tool made from diamond as an abrasive and combined with composite materials. It can perform irregular machining on materials such as stone, ceramics, glass, etc. The entire process is divided into four stages: coarse grinding, fine grinding, fine grinding, and polishing. The processed stone has a glossiness of over 90 °.

24. Metallographic sandpaper:

Metallographic sandpaper is a fine-grained sandpaper, named after its main processing of metallographic specimens. It can also be used for the processing of optical glass and metal parts. It has high requirements for raw materials, and generally requires high-grade fine powder as the substrate. The quality of the paper is also good, and water resistant sand resistant base paper can also be used.

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