ball indentation hardness

ball indentation hardness
твердость, определяемая вдавливанием шарика

English-russian plastics terminology dictionary. 2013.

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  • hardness tester — ▪ device       device that indicates the hardness of a material, usually by measuring the effect on its surface of a localized penetration by a standardized rounded or pointed indenter of diamond, carbide, or hard steel.       Brinell hardness is …   Universalium

  • Vickers hardness test — A Vickers hardness tester The Vickers hardness test was developed in 1924 by Smith and Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials.[1] The Vickers test is often easier to use than other… …   Wikipedia

  • Brinell hardness — (HB or BHN)    a measure of the hardness of a metal introduced by J. A. Brinell in 1900.    In the Brinell test (generally used for metals of uniform hardness), a hard object such as a steel ball is pressed into the material being tested. The… …   Dictionary of units of measurement

  • Rockwell hardness — (RH )    a measure of the hardness of a metal introduced by Rockwell in 1922. In a Rockwell hardness test, a penetrator makes an indentation in the metal under two constant loads, a minor load (generally 10 kilograms) and then a major load. The… …   Dictionary of units of measurement

  • Billiard ball — Cueball redirects here. For the video game, see Jimmy White s 2: Cueball. Cue balls from (left to right): Russian pool and kaisa 68 mm (2 11⁄16 …   Wikipedia

  • brinell hardness — brə̇ˈnel , ˈbriˌn noun Usage: usually capitalized B Etymology: after Johann A. Brinell died 1925 Swedish engineer : the hardness of a metal or alloy measured by a manually operated vertical hydraulic press in which a hard steel or carbide ball of …   Useful english dictionary

  • Brinell scale — The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test piece. It is one of several definitions of hardness in materials science.Proposed by Swedish engineer …   Wikipedia

  • Rockwell scale — The Rockwell scale is a hardness scale based on the indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a… …   Wikipedia

  • Operational definition — The operational definition of a peanut butter sandwich might be simply the result of putting peanut butter on a slice of bread with a butter knife and laying a second equally sized slice of bread on top An operational definition defines something …   Wikipedia

  • solids, mechanics of — ▪ physics Introduction       science concerned with the stressing (stress), deformation (deformation and flow), and failure of solid materials and structures.       What, then, is a solid? Any material, fluid or solid, can support normal forces.… …   Universalium

  • определение твёрдости по Бринелю — Определение твёрдости вдавливанием шарика [ russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN Brinell hardness testball (indentation) test …   Справочник технического переводчика