Diamond product use and classification
bourne
Boreway machinery
2015-11-03 16:02:29
Diamond product classification is very complex, can be divided into hundreds
grades, is according to the size of diamond products, crystal shape, color and
quality classification, quality "in order to achieve the purpose of economic
evaluation on the right. Generally divided into two categories: decorative
diamond and diamonds used in industry.
1. Decorate with diamond High-quality
natural diamond (diamond) require luster bright, transparent and clear, no
inclusions. Therefore, the diamond color and transparency and crystal size is as
the main quality grade standard of diamond. Colorless, transparent and pure
person are of high quality fine quality; For pure and transparent with blue and
yellow; Some color is very thick, dark like "blue diamond", "diamond", "black
diamond" for rare treasures. Granularity of standard is: gem grade one is
greater than 6.00 ct/grain, gem second is greater than 3.00 ct/grains. With the
development of science and technology, all kinds of artificial gems (such as
cubic zirconia) appeared, its products reach the level of real ones, often need
to be with the aid of various test instruments to verify its authenticity.
2. Industrial diamond products Ⅰ type of natural diamond, the main advantage of
the characteristics of their high hard, high wear resistance, the diamond Ⅱ
type, mainly use their good thermal conductivity and the semiconductor
properties of the production of various kinds of diamond products (products).
Due to China's natural diamond production rarely, industrial USES of diamond,
the vast majority of synthetic diamond, scribe lines used in wire drawing die,
lathe tool, knife, indenter, geology and petroleum drill bit, grinding wheel knife,
glass cutter, diamond pen, dresser, abrasive tool etc. Synthetic diamond
varieties according to the national standard (GB/T6405-94) is divided into six
types: RVD used for resin, ceramic bond products; MBD used in metal bond
grinding tools, sawing, drilling tools and electroplated products; SCD used for
resin bond grinding wheels; SMD tools used for cutting, drilling and repair; DMD
is used to trimming tools; M - SD for hard brittle materials fine grinding,
lapping, polishing, etc.
