A square ruler is usually simply referred to as a square ruler. It is a measuring tool often used in inspection and scribing work. It is used to detect the verticality of the workpiece and the verticality of its relative position. It is a professional measuring tool. The inspection of the verticality of the components, the positioning of the crossed lines of the installation, etc. are important measuring tools in the machinery industry. So what are the specifications of the square ruler?
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Square ruler specifications
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The specifications of the square ruler are: 750 × 40, 1000 × 50, 1200 × 50, 1500 × 60, 2000 × 80, 2500 × 80, 3000 × 100, 3500 × 100, 4000 × 100, etc. The alias of cast iron flat ruler product: square ruler , Cast iron square ruler, inspection square ruler, rectangular square ruler, square square ruler, parallel square ruler, equilateral square ruler angle flat ruler and special flat ruler are used for machine tool guide rail, precision inspection of worktable, geometric accuracy measurement, precision component measurement, scraping research Processing, etc., is the benchmark for precision measurement.
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　　 Square ruler classification
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1. Cast iron square
It is made of high-quality stone through mechanical processing and manual fine grinding. Black gloss, precise structure, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load and general temperature, and has no rust, acid and alkali resistance, wear resistance, no magnetization, and no change Etc. Used for testing, measuring, marking, equipment installation, industrial engineering construction. The cast iron flat rule is manufactured according to GB / 6318-85 standard, material HT250, the working surface adopts scraping or precision grinding process, used to measure the straightness and flatness of the workpiece and equipment installation, the use temperature (20 ± 5 ℃).
2. Granite square
It is made of high-quality "Jinan Green" stone by mechanical processing and manual fine grinding. Black gloss, precise structure, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load and general temperature, and has no rust, acid and alkali resistance, wear resistance, no magnetization, and no change Etc. Used for testing, measuring, marking, equipment installation, industrial engineering construction.
3. Magnesium aluminum square
Magnesium aluminum square ruler is also called magnesium aluminum alloy square ruler. It is light in weight and easy to handle, not easy to deform, and the yield point exceeds the general steel cast iron. Refers to the measurement surface and the base surface are perpendicular to each other, used to check the right angle, perpendicularity and parallelism of the measuring instrument, also known as curved ruler, ruler, 90 degree angle ruler. It is simple in structure and easy to use. It is one of the commonly used measuring instruments in equipment installation, adjustment, scribing and platform measurement.
The above is about the specifications and classification of the square ruler. The square ruler has at least one right angle and two straight sides. It is a tool used to draw right angles or check right angles. Sometimes it is also used to draw lines. It is often used in the verticality inspection of mechanical equipment and parts, and in the positioning of installation lines, it is an important measurement tool in many industries.
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