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Industrial diamonds
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
Crystalline and/or cryptocrystal-line diamonds having color, shape, size, crystal form, imperfections, or other physical characteristics that make them unfit for use as gems. industrial diamonds usually are grouped as toolstones, drill diamonds, fragmented bort, ballas, and carbons. also called industrials, industrial stones. see diamond.
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Industrial stones, английский
Industrials, английский
General term used in the financial markets to refer to companies manufacturing, producing, or distributing goods and services.
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Diamond, английский
- Брильянт - конфигурация головы и плеч, в которой воротник “разорван”, поэтому конфигурация имеет ромбовидный вид;
- Mineral composed essentially of carbon crystallized at extremely high temperatures and pressures; in nature, diamonds form 150 to 200km (93 to 124 miles) or more below the earth`s surface. diamond is the hardest of all known natural substances (10 on the mohs scale); its refractive index is 2.417, dispersion 0.044, specific gravity 3.52, and its lustre is adamantine. diamond ranges from colourless to yellow, brown, gray, orange, green, blue, white, black, purple, pink and extremely rarely, red. transparent and near-colourless is a desirable colour, diamond is a highly valued gemstone.
- A diamond is a precious gem, comprised of a crystalline form of pure carbon, the hardest naturally occurring substance.
- The hardest known substance composed of carbon crystallized in the isometric system, the more common crystal forms being the octahedron and rhombic dodecahedron. the cube and some com¬plex and combination forms of the isometric system are found, as well as rounded, distorted, twinned, and cryptocrystalline forms. although very hard, diamond has excellent cleavage and breaks readily under a blow, yielding flat surfaces parallel to the octahedral planes. diamonds usually are classified as either "gems" or "industrials" on the basis of color, shape, size, crystal form, and the size and location of inclusions or other imperfections. dia¬monds sometimes also are classified on a geographical basis, such as angolas, brazilians, congos, sierra leones, or west africans. this does not strictly mean that diamonds so classed come from that specific geographical area but that they are similar to stones characteristically produced by mines in that locality. a method for synthesizing diamonds has been developed, and small industrial diamonds have been produced on a commercial scale. these synthetic diamonds are commonly called "manmade" and/or "mm diamonds."
- Ore drill manufacturers association. see dcdma.
Diamond (impregnated) wire, английский
Diamond - shaped lattice, английский
Diamond ashlar, английский
A rectangular building stone having a face that is pyramidal rather than flat.
Diamond ballas, английский
Diamond bit, английский
- Any bit having diamonds inset in its crown, which serve as the cutting points or media. commonly also called boart bit, boart-set bit, bort bit, bort-set bit, bortz bit, bortz-set bit.
- A drill bit that has small industrial diamonds embedded in its cutting surface. cutting is performed by the rotation of the very hard diamonds over the rock surface.
Diamond bit core head, английский
Алмазная головка колонкового снаряда набора со съемным керноприемником
Diamond boring, английский
Diamond broker, английский
A person who buys packets of diamonds from the marketing agency of the diamond syndicate or other source, re-sorts the diamonds, and acts as a retail agent selling directly to consumers. compare diamond buyer, diamond dealer. 32 a glossary of the diamond-drilling industry
Diamond buyer, английский
A person who buys diamonds directly from the producer at or near the site where the diamonds are found or mined. not to be confused with diamond broker who is sometimes miscalled a diamond buyer. diamond chip. a fragment of a diamond crystal. also called chip, chip diamond.
Diamond chip, английский
Diamond chisel, английский
Diamond cleavage, английский
The plane along which a diamond crystal can be split easily. the four planes parallel¬ing the faces of an octahedron are those generally referred to as the cleavage planes, or diamond cleav¬age. all crystalline diamonds are more or less brittle and will be fractured by a sufficiently violent blow, but the irregular surface of a fracture cannot be mistaken for the brilliant flat surface produced by cleaving. the carbon has no cleavage, and in ballas cleavage is absent or very poorly defined. diamond cleaving. the act or process of splitting dia¬monds into smaller pieces, which may be more readily used as tool points, gems, or drill diamonds. diamond concentration. the ratio of the area of a single-layer bit face covered by the inset diamonds or, in an impregnated bit, the bulk proportion of the crown occupied by diamonds.
Diamond cleaving, английский
Diamond compact bit, английский
Буровое долото, армированное синтетическими алмазами, применяемое для бурения мягких пород и пород средней плотности
Diamond compact coring bit, английский
Буровая коронка, армированная поликристаллическими синтетическими алмазами
Diamond compact cutters, английский
Самозатачивающиеся поликристаллические синтетические алмазы, применяемые для армирования буровых долот
Diamond concentration, английский
Diamond content, английский
The number of carats of diamonds inset in the crown of a diamond bit. also called stone content, stone weight.
Diamond core drill, английский
A rotary-type drill machine using equipment and tools designed to recover rock samples in the form of cylindrical cores from rocks penetrated by boreholes. see core drill, diamond drill.
Diamond core drilling machine, английский
Установка колонкового бурения алмазным инструментом
Crystalline, английский
- A substance or rock composed largely or wholly of mineral crystals.
- Transparent, clear, or pure.
- Made up of crystals. the term crystalline applies to sections of all chemical fibers, which consists of alternate crystalline and amorphous (noncrystalline) regions. these regions are influenced by manufacturing conditions and to some extent can be controlled. the degree of crystallinity influences the physical properties of fibers.
Characteristics, английский
- The distinguishing qualities of a navigation aid or buoy, including shape and color, whether fixed or flashing, and flashing sequence.
- A high-performance fiber with high chemical resistance that does not burn in air. it has no melting point and does not drip when exposed to flame. the fiber and fabrics from pbi retain their flexibility, dimensional stability, and significant strength without embrittlement even when exposed to flame or extreme heat. the fiber emits little smoke in extreme conditions. it processes well on conventional textile equipment, having processing characteristics similar to polyester. it can be used in 100% form or blended with other fibers. it has a high moisture regain and low modulus with comfort properties similar to cotton. the natural color of pbi is a gold-khaki shade, but it can be dyed to almost any medium to dark shade with conventional basic dyes.
- Acetate fabrics are in appearance fast-drying, wrinkle and shrinkage resistant, crisp or soft in hand depending upon the end use.
- Although modacrylics are similar to acrylics in properties and application, certain important differences exist. modacrylics have superior resistance to chemicals and combustion, but they are more heat sensitive (lower safe ironing temperature) and have a higher specific gravity (less cover).
- Although the properties of the nylons described above vary in some respects, they all exhibit excellent strength, flexibility, toughness, elasticity, abrasion resistance, washability, ease of drying, and resistance to attack by insects and microorganisms.
- Because acrylic fibers are thermoplastic, fabrics may be heat-set for wrinkle resistance and to provide permanency to pleats. acrylic fabrics have low moisture absorbency and dry relatively quickly. in general, acrylic fibers are resistant to the degrading effects of ultraviolet rays in sunlight and to a wide range of chemicals and fumes. they provide warmth in fabrics that are lightweight, soft, and resilient. acrylic fibers have relatively poor flame resistance compared with other fibers. some acrylic fabrics, particularly knit types, approximate the hand of fine wool. because of the composition and cross section of the fiber, fabrics made therefrom have a high bulk to weight ratio. this is further enhanced with the so-called “high bulk” spun yarns.
- Glass fiber is incombustible and will tolerate heat up to 1000°f without material damage. potential strength is not realized in woven fabrics or even in yarns, because the fiber is brittle and fracture points may develop, but nevertheless, very high tensile strength is obtained in woven fabrics, and is retained at elevated temperatures. the fiber originally was difficult to color but methods have been developed to accomplish this. moisture absorption is low. electrical and insulation resistance is high.
- Polychlal fibers have a soft, lamb’s wool-like hand and moderate moisture regain. the fibers are also characterized by high flame resistance and high abrasion resistance.
- Polyester fibers have high strength and are resistant to shrinking and stretching. fabrics are quick drying and tend to have wrinkle resistance and crease retention, wet and dry. polyester is used alone and in blends. it has been one of the first fibers to be developed in fabrics with durable-press features.
- Polyethylene fibers have a low specific gravity, extremely low moisture regain, the same tensile strength wet and dry, and are resistant to attack by mildew and insects. these qualities have made polyethylene fiber suitable for industrial applications, geotextiles, outdoor furniture, and similar applications. polyethylene fiber does not dye, and in most cases, it is colored by the addition of pigments and dyes to the material prior to spinning. it has a low melting point, a property that has restricted its use in apparel.
- Polypropylene fibers have a number of advantages over polyethylene fibers in the field of textile applications. the degree of crystallinity, 72 to 75%, results in a fiber that is strong and resilient, and does not fibrillate like high-density polyethylene. polypropylene has a high work of rupture, which indicates a tough fiber, and may be made with tenacities as high as 8.0 to 8.5 grams per denier. the melting point of polypropylene is 165°c, which is low by comparison with nylon or polyester, but is high enough to make it suitable for most textile applications. so light that it actually floats, polypropylene fiber provides greater coverage per pound than any other fiber. it is highly resistant to mechanical abuse and chemical attack.
- Rayon yarns are made in a wide range of types in regard to size, physical characteristics, strength, elongation, luster, handle, suppleness, etc. they may be white or solution dyed. strength is regulated by the process itself and the structure of the yarn. (also see polynosic fiber.) luster is reduced by including delustering materials, such as titanium dioxide pigments, in the fiber when it is extruded. the suppleness of the yarn is controlled by the number of filaments in the yarn, the denier or gauge of the individual filaments or fibers, and the fiber cross-section.
- Spandex is lighter in weight, more durable, and more supple than conventional elastic threads and has between two and three times their restraining power. spandex is extruded in a multiplicity of fine filaments which immediately form a monofilament. it can be repeatedly stretched over 500% without breaking and still recover instantly to its original length. it does not suffer deterioration from oxidation as is the case with fine sizes of rubber thread, and it is not damaged by body oils, perspiration, lotions, or detergents.
Industrial, английский
- Промышленный
- One of the music genres that appears under genre classification in windows media player library. based on id3 standard tagging format for mp3 audio files. id3v1 genre id # 19.
Toolstones, английский
Industrial diamonds used for wire-drawing dies, indeintor points, shaped-diamond tools, glaziers, and dressers. toolstones approach gem diamonds in perfection, although not in color. the finer grades may be identical with diamonds sold as low-grade gems. the lower grade toolstones are also sometimes used as drill diamonds.
Fragmented, английский
Фрагментированный
Characteristic, английский
- Property that helps to distinguish between items of a given population (3)
- A quality which allows something to be recognised as different cancer destroys the cell’s characteristics. adjective being a typical or distinguishing quality symptoms characteristic of anaemia the inflammation is characteristic of shingles.
- N характеристика (см. тж. portrayal) articulatory ~ артикуляторная характеристика perceptual ~ перцептивная характеристика, характеристика восприятия
- Характерная особенность, признак; характеристика, особенность ~s of the loading особенности [параметры] нагружение (конструкции)
- The characteristic dimension dc
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Industrials, английский
General term used in the financial markets to refer to companies manufacturing, producing, or distributing goods and services.
Industrial stones, английский
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