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Brinell hardness
| Англо-русский глоссарий по металлургии |
- A system to measure the hardness of metals by indentation. a hardened steel ball is pressed into a smooth surface of the metal under a fixed load and the resulting indentation is microscopically measured. with a conversion chart, this number can also be used to determine the approximate tensile strength of the same metal.
- A measure of the hardness of a metal, as determined by pressing a hard steel ball into the smooth surface under standard conditions. for aluminum, the steel ball is 10 millimeters in diameter and total load is 500 kilograms. results are calculated as the ratio of applied load to total surface area of indentation and are referred to in terms of brinell hardness number or bhn.
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Твердость по бринелю, русский
Твердость по бринеллю, русский
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Brinell, английский
Brinell hardness number, английский
Число твердости по бринеллю внр brake horsepower полезная мощность (воздушного винта); тормозная [эффективная] мощность (двигателя) внрс brake horsepower corrected приведенный к эффективной мощности
Brinell hardness test, английский
Brinell hardness tester, английский
Brinell hardness testing, английский
- Evaluation method for determining the hardness of a material by forcing a hard steel or carbide ball of specified diameter (often 10 mm) into it under a specified load. the diameter of the indent is measured, and the result is reported as the material’s brinell hardness number. compare rockwell hardness testing.
- Evaluation technique for determining the hardness of a material by forcing a tungsten carbide ball of specified diameter (often 10 mm) into it under a specified load. the diameter of the indent is measured and the result is reported as the material’s brinell hardness number with tungsten carbide (hbw; as “w” is the chemical symbol for tungsten). previously a hardened steel ball indenter was used. compare rockwell hardness testing.
Brinelling, английский
- Permanent deformation of the bearing surfaces where the rollers (or balls) contact the races. brinelling results from excessive load or impact on stationary bearings. it is a form of mechanical damage in which metal is displaced or upset without attrition.
- Repeated stripe indentations made by a spherical object. false brinelling refers to a type of surface wear.
- Permanent surface deformation caused by contact stress above the material’s limit. compare false brinelling.
- Permanent surface deformation caused by contact stress above the material’s limit. compare wear, fretting.
Hardness, английский
- Dureté
- A property of wood that enables it to resist indentation. it is measure in kn and is often determined by the janka hardness test.
- The resistance of a substance to surface abrasion.
- Твердость
- A property of wood that enables it to resist indentation.
- A diamond’s ability to resist scratches
- Generally measured using the mohs scale. resistance a material offers to scratching or abrasion.
- As used by individuals associated with the drilling and bit-setting industry, the relative ability of a mineral to scratch another mineral or to be penetrated by a knoop indenter; also, the relative ability of a metal to resist being penetrated by the indenter point of a vickers, brinnell, or eockwell hardness-testing apparatus.
- Твёрдость; жёсткость; стойкость ~ of water жёсткость воды
- 1. when used in reference to water, hardness is the total parts per million (ppm) of calcium an caco3 plus the magnesium expressed as equivalent caco3 [ppm hardness (as caco3) = (ppm ca x 2.497 + ppm mg x 4.116)]. 2. used in reference to pulp to denote the degree of delignification.
- Resistance of a material to indentation or scratching
- A measure of the ability of a material to withstand penetration by a hard pointed object. regarding thermal interface materials, this property is usually inversely proportional to the ability of a material to conform to uneven surfaces. hardness shore a (shore d, shore )
- Resistance of metal to plastic deformation, usually by indentation. however, the term may also refer to stiffness or temper or to resistance to scratching, abrasion, or cutting.
- In materials science, the resistance of a material to deformation, scratching, abrasion, or cutting. see also brinell hardness; rockwell hardness.
- Resistance of metal to denting, to plastic deformation by bending or to mechanical deformation by scratching, abrasion or cutting. typically measured by indentation.
Hardness, английский
Hardness conversion, английский
Перевод твердости (изменение числа твердости, определенного одним методом, на эквивалентное число твердости по другой шкале)
Hardness gage, английский
Hardness number (hb) — число твер-дости по бринеллю., русский
Hardness of water, английский
Hardness pencils, английский
Hardness penetration curve, английский
Кривая прокаливаемости, кривая глубины закалки
Hardness plates, английский
Hardness points, английский
Hardness scale, английский
Quantitative units by means of which the relative hardness of minerals and metals can be determined, which for convenience is expressed in mohs, knoop, or scleroscope units for minerals and vickers, brinnell, or rockwell units for metals.
Hardness scale units, английский
Ohs knoop 1 (?) 2 32 3 135 4 163 5 395 6 560 7 710-790 8 1,250 9 1, 700-2, 200 >9 2,800 >9 3,200 >9 3,500 10 8, 000-8, 500
Hardness table, английский
Hardness test, английский
A determination of the relative hardness of a mineral, as made on a specimen, using appropriate hardness-testing apparatus and techniques. see hardness and hardness scale.
Indentation, английский
- Сдвиг; введение отступов; структурированное расположение текста; структурирование текста
- Displacement of the left or right edge of a block of text in relation to the margin or to other blocks of text.
- In a spot, seam or projection weld, the depression on the exterior surface of the base metal.
Conversion, английский
- Transformation of a forest from one forest type to another, favoring a particular species or group of species through practices such as cutting, planting, or weeding.
- The wrongful assumption of ownership over the goods or personal property belonging to another
- Пересчет
- Преобразование, переход
- The process of changing one thing into another the conversion of nutrients into tissue
- Модернизация (напр., станка)
- N преобразование; кон- версия4 system speech to text ~ распознавание речи5 text to speech ~ синтез речи6 conversive a конверсивный transformation cooing n воркование 1 семантико-синтаксическая фигура речи, предполагающая пропуск среднего звена в трехзвенной цепочке с последовательным подчине- нием, например: зеленый шум вместо зеленого леса шум. 2 слово, значения которого противоположны друг другу; “aloha” – 1. hello 2. goodbye. 3 определенный договором или соглашением. 4 изменение частеречной принадлежности слова, производимая лишь изменением парадигмы; в языках с отсутствием склонения или спря- жения проявляется просто как употребление слова в функции другой части речи. 5 преобразование речи (произнесенных слов) в письменный текст. 6 преобразование письменного текста в речь, автоматическое звуко- вое воспроизведение компьютером потока текста. cooperative: ~ principle принцип кооперации7 coordinate a 1 сочиненный (о предложении ); 2 однородный coordinated a сочиненный construction, structure coordinating a сочинительный (ант. subordinating) conjunction
- Reducing a vessel by a deck, thereby converting a line-of-battle ship into a frigate, or a crank three-decker into a good two-decker; or a serviceable vessel into a hulk, resembling a prison or dungeon, internally and externally, as much as possible.
- An action by which a subscription (the source subscription) is replaced by a new subscription, both owned by the same billing account, along a preconfigured conversion path. the source subscription is canceled and the destination subscription is the new subscription.
- An action taken by a visitor to your public web site that results in a desired customer response, such as requesting more information or signing up for a newsletter.
- The process of changing from one form or format to another; where information is concerned, a changeover that affects form but not substance. types of conversion include data (changing the way information is represented), file (changing a file from one format to another), hardware (changing all or part of a computer system), media (transferring data from one storage media to another), software (changing a program designed for one platform so that it runs on another), and system (changing from one operating system to another).
- In the context of securities, refers to the exchange of a convertible security such as a bond into stock. in the context of mutual funds, refers to the free exchange of mutual fund shares from one fund to another in a single family.
- Изменение
- Energy shows itself in numerous ways, with transformations from one type to another called energy conversions. for example, kinetic energy in wind fl ows is captured as rotating shaft work further converted to electricity; solar light is converted into electricity by photovoltaic cells. also, electric currents of given characteristics (e.g., direct/ alternating, voltage level) are converted to currents with other characteristics. a converter is the equipment used to realize the conversion.
- When a user completes a desired action on a website. examples of conversions include:
- A conversion is any desired action taken on a website like a purchase, the completion of a contact form, and so on. unique conversions can be set up and tracked in google analytics for a website so one can see how many times these actions have been taken.
Approximate, английский
- Приблизительный ар-ps ammonium perchlorate-poly- styrene (propellant) полистирол- перхлоратаммониевое ракетное топливо
- Приблизительный
- Приблизительно
Determined, английский
- A предопределённый
- Определенный
Conditions, английский
- The terms of surrender.
- Обстоятельства; условия; режим
- Грузовая устойчивость ~ of crane during lifting operations грузовая устойчивость крана ~ of geometrical shape геометрическая неизменяемость ~ of slope устойчивость откоса ~ of volume постоянство объёма
- Наблюдения за работой сооружений в условиях эксплуатации
- Работа конструкции в условиях эксплуатационных нагрузок
- A set of specified constraints and parameters that are part of the rights group bundled into a rights label. these are enforced at the time of consumption.
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Твердость по бринелю, русский
Светлый отжиг, русский
Отжиг в защитной среде, чтобы предотвратить изменение цвета блестящей поверхности.
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