Detailed description of professional solid density meter Solid density meter-definition of solid density meter Solid density meter is a new density developed by combining modern microelectronic technology with Archimedes principle test instrument. This instrument changes the tedious operation of traditional density testing, and realizes the rapid and accurate measurement of solid samples such as rubber solids, plastic solids, powder dust, precision ceramics, and magnetic materials. The new solid density meter can meet the requirements for accurate measurement of sample density in the process of modern product production and new material research. Solid density meter-the design principle of solid density meter Through the derivation and transformation of the buoyancy and density calculation formulas to form an equation, first use a high-precision solid analysis balance to calculate the weight of the sample to be tested in air (W1) and the weight in water (W2), and calculate W1-W2 Value, the density of water is Ï = 1 by default, and the equation is established by V sample = V drainage, the density value of the sample can be calculated: Ï = W1 / (W1-W2) xÏ water, this is the solid calculation formula. If the sample to be tested is a liquid, first use a standard block with a known volume and density as a reference, and obtain the calculation formula from the density of water Ï and the weight of the standard block in air (W1) and the weight in water (W2): Ï Liquid = (W1-W2) / standard block V xÏ standard Solid density meter-the basis of solid density meter: Basis: ASTM D792, GB / T 1033, HG4-1468, JIS-K-6268, ISO 2781, UL, IEC, CCC, VDE and other standard specifications Solid density meter——The application scope and field of solid density meter: Applicable to: rubber, plastic, wire and cable, tires, powder metallurgy, precision ceramics, magnetic materials, cemented carbide, glass products and other solids Suitable for quality management, cost control, on-site rapid density testing, new materials research laboratory, precious metal recycling, jewelry industry, cement manufacturing and other fields Solid density meter-the function of solid density meter â—† Quick detection, more efficient â—† With automatic zero tracking, buzzer alarm, overload alarm function â—† With the actual water temperature compensation function, it can adapt to the test environment changes â—† With solution compensation function, it can be used as a ring when in use, and other liquid media can also be used â—† It adopts one-piece large-capacity professional measuring platform, who is noisy with high transparency, wear-resistant and drop-resistant, as if it were â—† Equipped with a dedicated windproof and dustproof cover, easy to combine, durable â—† With the function of setting density on and off the line, it can automatically judge whether the style is qualified, and give an alarm prompt Solid density meter-classification of solid density meter â—† Solid density meter can be divided into: economic solid density meter and multifunctional solid density meter â—† Solid density meter can be divided according to its material; rubber solid density meter, plastic solid density meter, cemented carbide solid density meter, powder solid density meter, etc. â—† Solid density meter can be divided into: absorbent solid density meter and non-absorbent solid density meter according to whether it absorbs water Solid density meter-density meter test range The specific explanation is from the perspective of whether it absorbs water: (1) Non-absorbent product density meter (products with porosity less than 2% porous); Its defined volume does not include open pores, or open pores will not be infiltrated by water, which is called Apparent Density and is denoted by Da below. Measuring range: including the measured density of the closed pores in the sample object. Representative products: powder sintered products that rubber, plastic products, hard alloys, precious metals, etc. or external liquids cannot penetrate, or porous products with small pores. Calculation formula: apparent density = (weight of sample in air × water density) ÷ (weight of sample in air-weight of sample in water) That is: Da = (Wa × Ï) ÷ (Wa-ww) Note: Wa: weight of sample in air Ww: weight of sample in water Ï: water density value (2): Density tester for water-absorbing products (porous products with porosity greater than 2%): Its defined volume includes open pores and closed pores, which is generally referred to as sintered density in powder metallurgy, which is called bulk density (Bulk Density). Measuring range: includes the density measured by the closed pore and open pore density meter in the sample object. Representative products: powder metallurgy, precision ceramics, oxidized magnets, soil, water-absorbing materials, etc. or powder sintered products into which external liquid can penetrate or porous products with large pores Calculation formula: body density = (weight of unoiled sample in air × water density value) ÷ (weight of sample in air after waterproofing or oil penetration-weight of sample in water after waterproofing or oil penetration) Db = (Wa × Ï) ÷ (Wb-Ww) Note: Wa: weight of sample in air Wb: weight of sample in air after waterproofing or oil penetration Ww: weight of sample in water after waterproofing or oil penetration Ï: water density value
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