Marble square ruler is an important marble gauge. It is a combination of vertical and parallel frames. It is suitable for inspection of high-precision machinery and equipment and non-perpendicularity between machine tools. It is an important tool for checking the non-perpendicularity between various parts in the machine tool. Marble square is very flexible and is a convenient measurement tool. Many measurement tools need to go through the cooperation of other auxiliary tools to complete the measurement process, but the marble square can be directly measured, simple and convenient, no additional Operation, so it is relatively quick to use, but also very convenient to carry, the marble square foot has a certain casting standard, the following will introduce the characteristics of the marble square feet .
What is the square ruler of marble?
Square ruler, also known as granite square ruler, is a precision marble gauge that measures the parallelism and verticality of the straightness of the workpiece.
The square ruler of marble adopts precision benchmarking tools such as “Jinan Qingâ€, “Taishan Qingâ€, “Taishan Qingbai Granules†and other natural stones that have been machined and hand-polished. These stones have the features of precise structure, good stability, uniform texture, and high strength. The characteristics of high hardness and also has the advantages of no rust, acid and alkali, wear resistance, no magnetization, the same type, easy maintenance, easy to clean.
Marble ruler is mainly used to detect the straightness parallelism and verticality of high-precision components. It is an ideal detection reference surface. And its supporting products are: marble square, marble flat feet, marble and other rules. The square ruler of marble has a vertical parallel frame combination for the inspection of right angles, and is suitable for inspection of high-precision machinery and instruments and inspection of non-perpendicularity between machine tools.
Second, the characteristics of marble square feet
1. The main mineral components of marble square rule are escaping stone, plagioclase, a small amount of olivine, biotite and trace magnetite, black color, structural precision code, aging through hundreds of millions of years, uniform texture, good stability and strength. Large, high hardness, can maintain high precision under heavy load Marble square is processed using natural marble, marble is recrystallized limestone, the main component is CaCO3, manufacturing standards according to GB6092-85 standard manufacturing.
2. The marble square rule has dense structure, smooth surface and wear-resistance, and the roughness value is small; the marble raw material granite has long-term natural aging, the internal stress completely disappears, the material is stable, and it will not be deformed. The marble square is resistant to acid, alkali and alkali. Corrosion, anti-magnetic, will not rust rust, easy to use, easy maintenance, linear expansion coefficient is small, affected by temperature. Marble squares are suitable for industrial production and laboratory measurements. The physical properties are the specific gravity of 2970-3070 kg/m3, the compressive strength of 2500-2600 kg/cm3, the elasticity of 1.27-1.47 x 106 N/mm2, the water absorption rate of 0.13% and the Shore hardness of HS70 or higher.
3, the use of marble is many, in general, there are many kinds of tools used for the measurement of precision instruments, generally require different auxiliary tools to complete the measurement of mechanical equipment, but the marble square rule is It can independently complete the measurement tasks for many devices. The marble square ruler plays an important role in measuring the parallel pair of two pieces, and can undertake the work of equal height blocks. The speciality of the marble square rule is to check the non-perpendicularity among various parts of the machine tool, and has good applicability in practical operation. The process is a very useful tool.
There are many characteristics of marble square rule, mainly reflected in its physical characteristics and practical functions, marble square ruler can be used to measure the verticality of various instruments, which is crucial in industrial casting, because many instruments for precision The requirements are very high, so only the precise measurement of the marble square can make the use of the instrument meaningful.
Third, the formation of marble square feet stone
The marble ruler is made of natural marble. Marble is a recrystallized limestone and its main component is CaCO3. Limestone softens at high temperatures and pressures and recrystallizes to form marble when the contained minerals change.
Marble is the metamorphic rock formed by the original rock in the crust through the high temperature and high pressure in the earth's crust. The internal force of the earth's crust promotes the qualitative change of all kinds of original rocks, ie the structure, structure and mineral composition of the original rock are changed. The new rock formed through qualitative change is called metamorphic rock. Marble is mainly composed of calcite, limestone, serpentine and dolomite. Its main component is calcium carbonate, accounting for more than 50%. Because marble generally contains impurities, and calcium carbonate in the atmosphere by the role of carbon dioxide, carbides, water, but also easy to weathering and erosion, and make the surface lose luster quickly. Marble is mainly used for processing into various shapes and plates. Therefore, the marble square has the characteristics of high deformation resistance, high wear resistance, abrasion resistance, and high temperature resistance.
Fourth, marble square feet daily maintenance
1. Although the marble square ruler will not affect the precision due to the impact or impact of hard objects, the marble square ruler will drop the gravel and cause pits when the hard object impacts the working surface, and the working surface pits will affect the marble too much or too much. The accuracy of the square rule, so usually in the measurement of the workpiece or use should be careful to take care to avoid excessive pits, affecting its use also affect its appearance.
2. In the case of long-term non-use of marble, square ruler should be wiped with special lubricating oil. If there is no special lubricating oil, it can be replaced with edible oil. When using it again, use a soft cloth to dry it. When the surface is contaminated, it should be lighter. Corrosive agents such as lemon juice or vinegar should be used to clean the stains. Do not use materials such as soap or baking soda that are sensitive to the nature of marble.
Editor's summary: The relevant information about the marble ruler and the characteristics of the marble ruler was introduced here. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
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