Difference and usage of a grinder, polisher, and sander

First, the usage operation is different.

1. Grinding machine: The motor is fixed on the base, and the taper sleeve used to fix the polishing disc is connected to the motor shaft through screws. The polishing fabric is fastened to the polishing disc by ferrules, and the motor is activated by a switch on the base when the power supply is turned on, and the specimen can be polished by hand by applying pressure to the rotating polishing disc.

2. Polishing machine: use super electromagnetic force.

Conduction of fine grinding stainless steel needles, high-speed flow, turning and other actions, friction in the inner hole and surface of the workpiece, one-time polishing, cleaning, burr removal and other precision grinding effects.

3. Sanding machine.

The quality of the grinding depends on the amount of pressure, but don't push too hard against the grinding mill for grinding. Unnecessary excessive exertion will only quickly damage the sandpaper; When operating, be careful not to cover the ventilation hole with your palm or fingers.

Second, the principle is different.

1. Grinding machine: try to get the maximum polishing rate in order to remove the damaged layer generated during polishing as soon as possible. At the same time, it is also important to ensure that the damaged layer does not affect the final observed tissue, i.e. does not cause false tissue.

2. Polishing machine: The motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed, because the polishing disc and the polishing agent work together and rub against the surface to be polished, so as to achieve the purpose of removing paint pollution, oxide layer and shallow marks.

3. Sanding machine: The rotor of the motor drives the fan (eccentric center of gravity type), which becomes oscillating due to the eccentricity of the fan, and sandpaper (or abrasive cloth) with corundum or other abrasives is installed on the flat plate to sandwork the surface of wood, metal materials and other materials.

Third, the use is different.

1. Grinding machine: specially for the surface and tube of steel, aluminum and copper and other metal products.

2. Polishing machine: often used for mechanical grinding, polishing and waxing.

3. Sanding machine: suitable for cleaning, dehairing, flattening and polishing equipment for machinery, building decoration, furniture paint and other surfaces.

Encyclopedia - Grinding Machine.

Encyclopedia - Flat Sander.

Encyclopedia - Polishing Machine.

Of course, there is a difference, both of them are treated at a high speed (output 10,000r min) to treat the surface of the workpiece, but the sander is used for rough machining, and the sander is used for finishing, which should be easy to understand.

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Summary. Hello, I am very happy to answer your questions, Xiaoda has helped you find the answer, after investigation, the polishing machine is mainly to grind and polish the surface of the object, polish the solder joints, surface roughness, mirror polishing and other treatments. It is widely used in machine tools, automobile manufacturing, shipbuilding, furniture and other industries.

I often see that there are many things that are very rough, so we don't look very beautiful, and it's not very attractive, so we can process the surface of such things, any surface is smooth, and when traveling during the epidemic, please be sure to do a good job <>of epidemic protection

。I hope Xiaoda's reply will help you and I wish you a happy life!

What is the function of a grinding and polishing machine.

Hello, I am Mr. Xiaoda, I have seen your question, and now I am sorting out the answer, it will take about three minutes, please be patient.

Hello, I am very happy to answer your questions, Xiaoda has helped you find the answer, after investigation, the polishing machine is mainly to grind and polish the surface of the object, polish the solder joints, surface roughness, mirror polishing and other treatments. It is widely used in machine tools, automobile manufacturing, shipbuilding, furniture and other industries. I often see that there are many things that are very rough, so we don't look very beautiful, and it's not very attractive, so we can process the surface of such things, any surface is smooth, and when traveling during the epidemic, please be sure to do a good job <>of epidemic protection

。I hope Xiaoda's reply will help you and I wish you a happy life!

The workpiece processed by the grinding machine is rougher, and the surface finish of the workpiece processed by the polishing machine is better, but the fine grinding wheel can also be installed on the grinding machine to achieve a high finish.

Grinder: Electric grinder reciprocating electric polishing grinder (also known as file grinder). It is widely used in the finishing and surface polishing treatment of the mold industry, and is a substitute for similar pneumatic products.

The main salient features are as follows:1The high-power motor delivers powerful grinding performance over the entire operating range and can reach 150% load; 2.

Use a complete safety concept: touch start, automatic stop, wear-free electronic braking system EBS, quickin quick clamping system, power-off restart locking and soft start; 3.The powerful self-supporting motor construction makes the switch module dustproof and durable.

Polishing machine: Polishing machine, also known as grinder, is often used for mechanical grinding, polishing, and waxing. Here's how it works:

The motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed, and the polishing disc and the polishing agent work together and rub against the surface to be polished, so as to achieve the purpose of removing paint pollution, oxide layer and shallow marks. The speed of the polishing disc is generally 1500-3000r min, and most of them are continuously variable speed, which can be adjusted at any time according to the needs during construction.

Summary. Hello dear.

Coarse throwing is generally used.

Diamond. Extremely high hardness, sharp and sharp particle shape, has a good grinding effect on materials of different hardness, and has a good polishing effect for alloy samples with different phases with great difference in softness and hardness. In addition, the diamond polishing abrasive has a long grinding life and high cutting capacity, so the abrasive consumption is low, and at the same time, the surface of the sample can be basically free of deformation disturbance layer.

Alumina. The hardness is very high, and there is generally no chemical reaction with the material being polished. Alumina polishing abrasives are commonly used for general steel specimens. However, it should not be used for polishing aluminum and aluminum alloys, because alumina abrasives tend to dull the surface of aluminum and create corrosion pits.

Chromium oxide. The polishing ability is weaker than that of alumina and can be used as the final polish of steel specimens.

Iron oxide. Aurora bright surface can be obtained, but at the same time, it is easy to produce deformation disturbance layers, and non-metallic inclusions will be dragged out of the metal matrix of the sample, so it is rarely used.

Magnesium oxide. Low hardness, extremely fine particles, sharp profile and good grinding edge. It is suitable for the final polishing of aluminum, magnesium and other non-ferrous metals and alloys.

It has a small effect on the traction of non-metallic inclusions in steel samples, so it is particularly suitable for inclusion inspection and polishing of cast iron graphite specimens.

What is the difference between rough polishing and fine polishing in a vibratory grinding polisher.

Hello, pro rough throwing generally with diamond. Extremely high hardness, sharp and sharp particle shape, has a good grinding effect on materials of different hardness, and has a good polishing effect for alloy samples with different phases with great difference in softness and hardness. In addition, the diamond polishing abrasive has a long grinding life and high cutting capacity, so the abrasive consumption is low, and at the same time, the surface of the sample can be basically free of deformation disturbance layer.

Alumina. The hardness is very high, and there is generally no chemical reaction with the material being polished. Alumina polishing abrasives are commonly used for general steel specimens.

However, it should not be used for polishing aluminum and aluminum alloys, because alumina abrasives tend to dull the surface of aluminum and create corrosion pits. Chromium oxide. The polishing ability is weaker than that of alumina and can be used as the final polish of steel specimens.

Iron oxide. Aurora bright surface can be obtained, but at the same time, it is easy to produce deformation disturbance layers, and non-metallic inclusions will be dragged out of the metal matrix of the sample, so it is rarely used. Magnesium oxide.

Low hardness, extremely fine particles, sharp profile and good grinding edge. It is suitable for the final polishing of aluminum, magnesium and other non-ferrous metals and alloys. It has a small effect on the traction of non-metallic inclusions in steel samples, so it is particularly suitable for inclusion inspection and polishing of cast iron graphite specimens.

Do you need to use polishing liquid for rough polishing?

Rough polishing needs to be used according to your own situation.

<> "The working principle is different: the polishing machine is to control the wool wheel by high-speed rotation and complete the polishing with the cooperation of the polishing agent, while the angle grinder is to use high-speed rotation to control the wire wheel and thin piece grinding wheel to complete the grinding and cutting. <&list> is used for different purposes:

The purpose of the polishing machine is polishing, and the main purpose of the angle grinder is cutting, grinding the base, removing rust and so on. <&list> The scope of application is different: the polisher is suitable for materials with delicate surfaces, while the grinding machine is suitable for materials with rough surfaces.

A lot of equipment needs to be used in the decoration process, among which polishing machine and angle grinder are more common, many people don't know how to distinguish, in this regard, what is the difference between polishing machine and angle grinder? Let's take a look.

1. What are the differences between polishing machines and angle grinders?

1. The working principle is different: the polishing machine controls the wool wheel by high-speed rotation, and with the cooperation of the polishing agent, the surface of the material is rubbed and polished, while the angle grinder uses high-speed rotation to control the wire wheel and thin slice grinding wheel to complete the grinding and cutting of the material.

2. Different uses: The purpose of the polishing machine is polishing, and the main purpose of the angle grinder is cutting, grinding, rust removal and so on.

3. The scope of application is different: the polishing machine is suitable for materials with delicate surfaces, while the grinding machine is suitable for materials with rough surfaces.

2. What problems should be paid attention to when operating an angle grinder?

1. Before starting to operate the angle grinder, it is necessary to conduct a comprehensive inspection of the equipment, and once the abnormality is found, it must be dealt with immediately to avoid unnecessary accidents during the operation.

2. The use of angle grinder needs to be connected to the power supply, pay attention to the power supply, the socket must have a reliable grounding, so that when the equipment leakage, the large current can be introduced into the ground in time to avoid electric shock accidents.

3. The personnel who operate the angle grinder must be professionals and have the operation qualifications, otherwise the safety can not be guaranteed, in addition, when operating the angle grinder, it is necessary to set up the corresponding protective net according to the site situation, and the construction personnel also need to wear long sleeves and trousers, and are required to wear goggles to avoid material splashing and damage.

Summary: The above differences between polishing machine and angle grinder, as well as what problems should be paid attention to when operating angle grinder, are introduced here, I hope it will help you. Polishing machine and angle grinder are two different equipment, users need to understand the difference between the two in detail, in order to choose the right equipment when needed.

1. The working principle is different: the working principle of the polishing machine is to use the sponge or wool on the polishing disc to rotate at high speed, and rub the surface to be thrown under the joint action of the polishing disc and the polishing agent to achieve the purpose of polishing. The working principle of angle grinder is to use high-speed rotating thin disc grinding wheels, rubber grinding wheels, and steel wire wheels to grind, cut, remove rust, and polish metal components.

2. Different uses: the polishing machine is actually a kind of angle grinder, which is a machine that is differentiated from the angle grinder and specializes in polishing operations. Angle grinders are widely used, such as carpenters, bricklayers, and welders, and can cut and polish small rubber metal parts.

3. Different applicable materials: the materials suitable for processing by the polishing machine are relatively delicate and difficult to see with the naked eye; Angle grinders are usually suitable for working with materials that are coarse and visible to the naked eye.