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Grinding crack
| Глоссарий по визуальному контролю и осмотру |
- Shallow crack formed in the surface of relatively hard materials because of excessive grinding heat or the brittleness of the material. grinding cracks typically are oriented 90 degrees to the direction of grinding.4 h hadfield’s steel: austenitic manganese specialty steel, easily work hardened.
- Shallow crack formed in the surface of relatively hard materials because of excessive grinding heat or the high sensitivity of the material. grinding cracks typically are oriented 90degrees to the direction of grinding.4 h half-wave current: power waveform rectified from single-phase alternating current to produce a pulsating unidirectional field.
- Shallow crack formed in the surface of relatively hard materials because of grinding heat. grinding cracks typically are 90 degrees to the direction of grinding.10
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Шлифовальная трещина, русский
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Crack, английский
- Fissure
- Трещина
- A building defect consisting of complete or incomplete separation within a single element or between contiguous elements of constructions. crack-control reinforcement steel reinforcement in concrete construction to prevent cracks or to limit them to small, uniformly distributed ones.
- A thin break there’s a crack in one of the bones in the skull. verb to make a thin break in something, or become split she cracked a bone in her leg. cracked lip a lip where the skin has split because of cold or dryness
- “in a crack,” immediately.
- First-class or excellent (e.g., a crack ship is uncommonly smart in evolutions or discipline).
- Трещина о ~s caused by creep трещинообразование от ползучести; ~s
- Visible breakage of the powder coating, usually caused by insufficient cross-linking
- A snare drum sound in which the sharp attack of the stick on the head of the snare has been boosted for emphasis at around 5 to 10 khz.
- A defect in a woven fabric consisting of an open fillingwise streak extending partly or entirely across the fabric.
- A small, partial or incomplete defect.
- A discontinuity that has a relatively large cross-section in one direction and a small or negligible crosssection when viewed in a direction perpendicular to the first.
- (1) break, fissure, or rupture, sometimes v shaped and relatively narrow and deep. discontinuity that has a relatively large cross section in one direction and a small or negligible cross section when viewed in a direction perpendicular to the first. (2) propagating discontinuity caused by applied stresses such as mechanical flexing (fatigue crack). difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance). crack, fatigue: progressive crack that usually is initiated at a free surface such as a fastener hole and is caused by the repeated mechanical loading and unloading of the object.
- (1) разрыв, трещина или разрыв, иногда v-образной формы, относительно узкий и глубокий. разрыв, который имеет относительно большое поперечное сечение в одном направлении и маленькое или незначительное поперечное сечение, если смотреть в направлении, перпендикулярном первому. (2) распространяющаяся несплошность, вызванная приложенными напряжениями, например, механическим изгибом (усталостная трещина). трудно обнаружить без посторонней помощи из-за тонкости линий и рисунка (может иметь радиальный или решетчатый вид). трещина, усталость: прогрессирующая трещина, которая обычно возникает на свободной поверхности.
- Stress induced break, fissure or rupture, sometimes v shaped in cross section and relatively narrow. by convention, a crack is called linear if it is at least three times longer than it is wide.
- Propagating discontinuity caused by fatigue, corrosion or stresses such as heat treating or grinding. may be difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance).
- (1) stress induced break, fissure or rupture, sometimes v shaped in cross section and relatively narrow. by convention, a crack is called linear if it is at least three times longer than it is wide. (2) propagating discontinuity caused by fatigue, corrosion or stresses such as heat treating or grinding. may be difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance). compare fracture. crack, cold: (1) discontinuity that forms near room temperature while a casting cools due to stresses caused during nonuniform cooling. (2) discontinuity that may form in a weld either as it cools or later, if stress, hydrogen contamination and microstructural conditions allow. crack, crater: multisegment crack in a weld crater. segments radiate from a common point, often called star cracks. crack, fatigue: see fatigue. crack, forging: stress induced discontinuity formed during mechanical shaping of metal; see crack; discontinuity, primary processing. crack, grinding: shallow discontinuity formed in the surface of relatively hard materials because of excessive grinding heat or the brittleness of the material. grinding cracks typically are oriented perpendicular (90 degree rotation) to the direction of the grinding wheel. see also grinding burn. crack, hot: (1) discontinuity formed in a weldment caused by the segregation at grain boundaries of low melting constituents in the weld puddle. (2) postsolidification casting discontinuity caused by internal stresses.
- (1) a break, fissure or rupture, usually v shaped and relatively narrow and deep. a discontinuity that has a relatively large cross section in one direction and a small or negligible cross section when viewed in a direction perpendicular to the first.1 (2) propagating discontinuities caused by stresses such as heat treating or grinding. difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance).1
- (1) stress induced break, fissure, or rupture, sometimes v shaped in cross section and relatively narrow. by convention, a crack is called linear if it is at least three times longer than it is wide. (2) propagating discontinuity caused by corrosion, fatigue, grinding, stress (mechanical or thermal), welding, or working. may be difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance). compare fracture. crack, cold: (1) discontinuity that forms near room temperature while a casting cools due to stresses caused during nonuniform cooling. (2) discontinuity that may form in a weld either as it cools or later, if stress, hydrogen contamination, and microstructural conditions allow. compare crack, hot. crack, crater: multiple-segment crack in a weld crater. segments radiate from a common point, often called star cracks. crack, fatigue: see fatigue crack propagation. crack, forging: stress induced discontinuity formed during mechanical shaping of metal. see also burst; crack; discontinuity, primary processing. crack, grinding: clustered shallow surface cracks formed in relatively hard materials because of excessive grinding heat, thermal cycling, or the brittleness of the material. grinding cracks typically are oriented perpendicular (90 degree rotation) to the direction of the grinding wheel. see also grinding burn. crack, hot: (1) discontinuity formed in a weldment caused by the segregation at grain boundaries of low melting constituents in the weld puddle. (2) postsolidification casting discontinuity caused by internal stresses. compare crack, cold; hot tear. crack, quenching: rupture produced during quenching of hot metal because of more rapid cooling and contraction of one portion of test object than occurs in adjacent portions.
- Break, fissure or rupture, sometimes v shaped in cross section and relatively narrow. by convention, a discontinuity is called a crack if it is at least three times longer than it is wide. (2) propagating discontinuity caused by fatigue, corrosion or stresses such as heat treating or grinding. may be difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance).5,6 curie point (tc): temperature at which a phase transformation causes ferromagnetic materials to lose their magnetic properties. ? ? = 1 g r = 1 378 magnetic testing
- (1) break, fissure or rupture, sometimes v shaped in cross section and relatively narrow. by convention, a discontinuity is called a crack if it is at least three times longer than it is wide. (2) propagating discontinuity caused by fatigue, corrosion or stresses such as heat treating or grinding. may be difficult to detect unaided because of fineness of line and pattern (may have a radial or latticed appearance).10 crack, cold: crack that occurs after solidification, because of high stresses from nonuniform cooling.10 crack, cooling: crack resulting from uneven cooling after heating or hot rolling. cooling cracks are usually deep and lie in a longitudinal direction but are usually not straight.10 crack, fatigue: progressive growth of a crack that usually develops on the surface and is caused by the repeated loading and unloading of the object.10 crack, forging: crack developed by forging at too low a temperature, resulting in rupturing of the material.10 also called burst. crack, hot: crack that develops before the material has completely cooled, as contrasted with cold cracks that develop after solidification.10 crack, quenching: during quenching of hot metal, rupture produced by more rapid cooling and contraction of one portion of a test object than occur in adjacent portions.10
Crack, английский
Crack, английский
Crack, английский
Crack, немецкий
Crack -, английский
Трещинообразование; раскрытие трещин
Crack 47, английский
Crack climbing, английский
To ascend on a rock face by wedging body parts into cracks, i.e. not face climbing. see jamming and chimney.
Crack cocaine, английский
Crack, cocaína en base, basuco
Crack contaminant, английский
Material which fills a crack and which may prevent penetrants from entering.
Crack detection by holography, английский
Crack dressing out, английский
Crack extension, английский
Crack formation, английский
Crack growth, английский
Crack healing, английский
Crack length (depth), английский
Crack mark, английский
A sharp break or crease in the surface of a coated or laminated fabric.
Crack officer, английский
One of the best class.
Crack on, английский
Add sail to the limit of masts, yards, and rigging.
Crack on, to, английский
To carry all sail.
Relatively, английский
Brittleness, английский
- Уязвимость (сети передачи данных)
- Хрупкость acid ~ кислотная хрупкость (стали)
- 1) a material condition characterised by reduced ability to carry load
- The quality of a material that leads to crack propagation without appreciable plastic deformation.
- Characteristic of a material that leads to crack propagation without appreciable plastic deformation.
- Характеристика материала, которая приводит к незаметному распространению трещин.
- Quality of material that leads to crack propagation without appreciable plastic deformation. compare ductility. 521
- Quality of material that leads to crack propagation without appreciable plastic deformation. compare ductility.
- Material characteristic that leads to crack propagation without appreciable plastic deformation.10
Austenitic, английский
Sensitivity, английский
- Change in the response of a measuring instrument divided by the corresponding change in the stimulus (1)
- The ratio of the output of an instrument to the input (i.e. -gain).
- Defines the smallest signal detectable in the presence of systems noise
- In television, a factor expressing the incident illumination upon a specified scene required to produce a specified picture signal at the output terminals of a television camera.
- For a camera usually specified in lux to provide indication of light level required to gain a full video signal from the camera.
- A measure of the amount of light required to provide a standard video signal. sensitivity values are stated in lux (see lux) or foot-candles.
- Lens iris aperture required to provide a video output signal of standard level at a specified light input. in general, sensitivity is measured using an 89.9% reflectance grey scale chart illuminated by a 3200? k illuminance at 2000 lux (color camera) or 400 lux (b/w camera), for a video output level of 100%.
- 1. the fact of being able to detect and respond to an outside stimulus 2. the rate of positive responses in a test from persons with a specific disease. a high rate of sensitivity means a low rate of people being incorrectly classed as negative. compare specificity
- Чувствительность; сенситивность; восприимчивость специфически измененная реактивность. вероятность возникновения реакции на введение антигенов. ср. susceptibility (восприимчивость (к болезни)).
- The sensitivity of classification rule is a measure of its ability to correctly classify observations into a particular category. it is defined to be the ratio of the number of true positives to the number of positives in a test set. this value is usually inversely related to the specificity of the test for a given set of data and a particular classification rule. note that this measure is different from the positive predictive value of a rule, which is a measure of the probability that a positive is a true positive. if multiple classification categories exist, each category will have its own sensitivity, specificity, and positive predictive value. see also: positive predictive value, specificity.
- Чувствительность: a) различие в концентрации аналита, соответствующее наименьшему обнару-живаемому различию в реакции метода. представляется наклоном калибровоч-ной кривой. иногда ошибочно используется для обозначения предела обнаружения. b) частота истинно положительных результатов, полученных при испытании проб, в которых, насколько известно, содержится аналит [55]. c) отношение изменения показаний измерительного прибора к соответствую-щему изменению измеряемой величины. измеряемой величиной может быть, например, количество исследуемого вещества, содержащееся в пробе.
- Чувствительность. в сенсорном анализе — способность различать, идентифицировать и/или дифференцировать (качественно и/или количественно) один или более раздражителей с помощью органов чувств (предварительный стандарт мос, 12). в аналитической химии — чувствительность метода, которая (для простого-метода)- характеризуется наклоном калибровочной кривой, т. е. является дифференциалом измеряемой величины по отношению к концентрации dx/dc. чувствительность не следует путать с наименьшим количеством или наиболее низкой концентрацией, которые можно обнаружить с помощью данного метода; правильный термин для обозначения этого понятия — предел чувствительности (см. limit of detection).
- The output of a microphone in volts for a given input in sound pressure level. sensitivity can also mean the sound pressure level (spl) a loudspeaker produces at one meter when driven with one watt of pink noise.
- The degree of confidentiality of an e-mail message or calendar item, ranging from normal to confidential.
- The significance level that must be reached before a notification is sent.
- Чувствительность:
- Measure of a sensor’s ability to detect small signals. see resolution.
- Ability of a sensor or system to distinguish a signal or indication from background noise. see also probability of detection.
- Ability of a sensor or system to distinguish a signal or indication from background noise. see also probability of detection. si (international system of units): international measurement system in which the following seven
- (1) performance characteristic of a penetrant system, of a developer, or of an entire penetrant process that provides a relative measure of the ability to detect discontinuities. (2) enumerated level of performance of a penetrant system determined by applying standardized processing procedures on reference standards with known defects. (3) ability of a sensor or system to distinguish a signal or indication from background noise. compare probability of detection.
- Probability of detection.
- Ability of signal to change with small changes of measured quantity.
Alternating, английский
- Current, synchronous на переменном токе, синхронный
- Current, volt напряжение переменного тока в вольтах
- Flemish bond a brickwork pattern which is produced by laying alternate
- Переменный; знакопеременный; альтернативный
- Знакопеременный (о силе, напряжении)`, чередующийся
Unidirectional, английский
- Allowing for normal travel in one direction according to the infrastructure and system of safeworking in use.
- Однонаправленный
- Operating in one direction only.
- Having one direction only.
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Halitation, английский
Rings of light visible around a spot on a video screen where an electron scanning beam is held.
Gray body, английский
- Radiator whose spectral emissivity is uniform for all wavelengths.
- See graybody.
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