2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
Many home craftsmen have an electric machine, which is popularly called "emery". It requires emery stones (circles). On this machine, you can sharpen individual parts or grind any product, tools. Such equipment is convenient to have on hand if repairs are to be made. An emery stone will be indispensable for sharpening knives.
Shops offer a wide range of grinding wheels. Sometimes they are replaced by diamond counterparts. For metal, it is good to use an abrasive wheel. This article discusses in detail the classes and data types of elements.
What is the classification of stones for the machine?
One of the most common are white emery stones for a grinder. The marking of such a circle is 25A. These stones can be used to process non-solid metal products. They are great for homework. For example, it is convenient to sharpen knives and scissors with a white circle. They are even suitable for sharpening axes. You can select the desired circle size and takeback to work.
There are blue or orange stones with the same marking: 25A. They are distinguished by high quality sharpening. Numerous reviews testify to this.
Aluminum corundum circles are most suitable for homework, in which it is important not to overheat the metal. The size of the stone must be selected based on the model of the machine. The most common are circles of 32 millimeters. They are used for home devices.
There are stone diameters of 125, 150 and 175 millimeters. The largest can be 200 millimeters. Thickness available from 10 to 25 millimeters.
Wheels come in silicon carbide. They are labeled 64C. Produced in green. This model is designed for machining hard alloys. Work with tool steel is possible. For example, you can grind them with soldering for a punch element.
High temperature can be noted during turning. The stone material is durable. It does not wear out for a long time and is not erased. You need to understand that you cannot sharpen knives with this circle, as there is a high probability of spoiling the kitchen appliance.
The desired stone can be used on steel marked P6M, P18. It is allowed to work with VK8, T5K10 alloys. For harder alloys, a diamond wheel should be used. On the shelves of hardware stores you can see grinding wheels of large sizes. The large stone diameter is designed for serious machines.
How is labeling done?
Many buy emery stones, but not allknow how labeling works. Grain is usually marked.
The grain of the emery stone can be from 8 to 25, the maximum is 40N. The eighth is considered the smallest, and the fortieth is the largest.
In addition to numbers, the marking of emery stones must contain a letter value. SM is placed on circles of medium hardness, and ST on a stone of medium hardness. The cost of the CT circle is usually higher than the CM. The advantage of medium hard stones is their resistance to abrasion. Some people make their own sanding stones, but they won't last.
Which marking is better to choose?
If a person has a goal to make an accurate sharpening, then it is better to choose a circle of fine grit: from 12 to 16. For example, to sharpen figure skates, you need an emery stone of 12 grit. It is better to take the marking SM. The diameter of the circle in this case will be 150 millimeters. It will be relatively small thickness, only 8 millimeters. Landing is usually taken 32 millimeters. Since the grain of the circle is small, a perfectly even sharpening of the skates is obtained. The size of the emery stones must be selected depending on the work ahead.
Which stone to choose for a 150 mm machine?
If you need to pick up an element for a machine with a diameter of 150 millimeters, then you should pay attention to standard CM circles. They will be 150 by 20 by 32. The emery stone setting will be 32 millimeters. Its width will be 20 millimeters. It is better to take the average grain size of the circle - 25. They are great forsharpen small tools and parts (for example, knives). Easy to sharpen scissors. With these circles, you can sharpen such large tools as an ax. The average softness of SM circles allows them to be used in household needs at home. Even a beginner can use such a stone. The cost of the circle starts from 120 rubles.
Which manufacturer is better to choose?
There is a wide range of manufacturers of grinding wheels on the market. Products that are produced in the city of Volzhsk have proven themselves well. These emery stones are of high quality, judging by the reviews. They don't break and last a long time. Another plus of these circles is the price affordable for the average consumer. It is convenient that the company delivers its products throughout Russia.
What kind of stones are used to sharpen knives?
Everyone has faced the need to sharpen knives at home. This process usually takes a long time if there is no machine or grindstone at hand.
Grinding wheels are natural and artificial. The natural ones include the following:
- Vashita.
- Arkansas.
Artificial whetstones include aluminum, ceramic, and diamond grinding wheels. People are divided into supporters of natural stones and lovers of artificial ones. Nowadays, artificial emery elements are becoming very popular. They are more affordable and are versatile for most jobs.
Sandstoneknife sharpener is a useful item in every home.
The difference between water stones and oil stones
Few people know that emery stones are divided into water and oil. Water before starting work must be soaked in water for about fifteen minutes. Oils differ in that they do not require water. They need to put a drop of special oil on them. Additional lubrication is needed for the stones so that the gaps between the grains do not clog. Otherwise, the gaps will be filled with steel filings, causing the machine to malfunction.
Recommendations and reviews
Based on the feedback from people who use different stones, many people like Naniwa Combo 1000 to 3000. The series is advised to choose Economical. This stone is inexpensive and perfectly fulfills the task assigned to it.
Some people like to use a Lansky sharpener. With it, it is even easy to restore the angle of the knife sting. With the desired device, it became possible even to change the angle.
The Lansky is marked with 17, 20 and 30 markings. Five different sharpening stones are sold with the device. They differ in different grain sizes. You can polish a variety of edges without fear of chipping or damage.
People who often work with grinding wheels recommend using the Lansky Crock Stick for home sharpening. It is a plastic stand with two different stones. They are different in grain size. Each stone is inserted into a hole in the stand. The work surface is on top. Pricethis device is much higher than the price of its counterparts.
Some people think that it is better to take stones of medium hardness, which are suitable for most household tasks. Such circles will be inexpensive, which will save money on buying an expensive grinder.
Conclusion
So, now it's clear what an emery stone is. As you can see, it is divided into several types and categories. Everyone chooses what exactly is best suited for certain goals.
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