Vision Localization/CCD Series
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   Drill-based ceramic pigments are ceramic pigments based on ZrSiO 4 crystals. They have excellent properties, such as stable color development, bright color, high temperature stability, chemical resistance, and many other types. The color matching of color materials, good miscibility and so on. According to the different states of the color elements in the ZrSiO 4 matrix, they can be classified into solid solution type such as chrome vanadium blue, zirconium yellow and encapsulated type such as zirconium iron red. The zircon pigment is formed based on the mechanism by which ZrO 2 and SiO 2 synthesize ZrSiO 4 . The traditional method is based on zirconia and quartz . The use of expensive zirconia as a raw material makes zircon pigments costly. This experiment directly zircon this cheaper raw materials to replace zirconium oxide and quartz, zircon direct synthesis based pigment - zirconium vanadium blue, zirconium praseodymium yellow, zirconium iron red.
Second, the principle
   Zirconium vanadium blue and zirconium yellow are formed by V 4+ and Pr 4+ in the formation of ZrSiO 4 , respectively. Occupies Zr 4+ in ZrSiO4. The position, entering the ZrSiO 4 lattice and coloring. The ferrochrome red is a crystal in which the crystal of ZrSiO 4 is wrapped with Fe 2 O 3 . In order to lower the synthesis temperature and allow more colored ions to enter the ZrSiO 4 lattice, an appropriate amount of sodium chloride and sodium fluoride are used as mineralizers.
   Since the chemical bond of ZrSiO 4 in zircon is very strong, the crystal structure is very stable, and the colored ions cannot directly enter into it to develop color. In order to allow the colored ions to enter the zircon crystal, ZrO 2 and SiO 2 must be separated, and then the colored ions enter the crystal to be colored during the re-synthesis of zircon.
   In this experiment, NaCO 3 and zircon were used as raw materials to decompose zircon at high temperature, and then the decomposition products were neutralized with sulfuric acid. The chemical reaction was as follows : ZrSi0 4 + Na 2 CO 3 , = Na 2 SiZrO 5 + CO 2 (1) A part of Na 2 SiO 5 is treated with sulfuric acid to form ZrO 2 xSO 3 . Na 2 SiZrO 5 +ZrO 2 xSO 3 +SiO 2 =(X+1)ZrSiO 4 +Na 2 SO 4 (2), and the colored ions pr 4+ and V 4+ are added to the process of (2) to produce yttrium and sky blue.
Third, the experimental process
   1. The milled zircon is about 300M and approximately equivalent of Na 2 CO 3 , (the equivalent ratio is 11.0-2.0, the mixture is uniformly mixed, and the mixture is calcined to 1050-110.
   2. The calcined decomposition product was placed in water to prepare a suspension, followed by the addition of 98% sulfuric acid to the suspension. The mixture, which was originally free-flowing after the addition of the acid, slowly hardens and finally solidifies completely. In order to ensure the quality, the acid must be uniformly mixed, and an appropriate amount of each component may be introduced continuously or intermittently, and mixed in a time to minimize turbulence.
   3. After pre-drying the above cured product, add appropriate amount of NaF, V 2 O 3 , NH 4 VO 3 to make sky blue, and calcination temperature is 900-115.
Fourth, experimental results and discussion
   l, the fineness of zircon sand has a great influence on the synthesis of sky blue and yellow, and the ratio of zircon sand to Na 2 CO 3 is also the best ratio of 11.2 to 1.5.
   2. The ratio of NaF to colored oxide added to the cured product, through experiment, the best is
   Sky blue NaF5wt% V 2 O 5 3wt%
   镨Yellow NaF5wt% Pr 11 O 5 3.5wt%
   Zirconium iron red NaF 6wt% Fe 2 O 3 8wt%
V. Conclusion
   1. Zircon sand can be used to synthesize zircon-based ceramic pigments with excellent properties. The effect of zirconium-vanadium blue and zirconium-yellow yellow color is basically the same as that of traditional products, and the effect of zirconium iron red is slightly poor.
   2. Through the experiment, the process system of synthesizing zircon-based ceramic pigments using zircon sand was determined.
   3. Compared with ZrO 2 and SiO 2 synthesis methods, the method of synthesizing zirconium-based ceramic pigments with zircon can reduce the cost per ton of pigment by 4000-5000 yuan, which has good economic benefits.
   references
   l, Ceramic Technology, South China University of Technology, Beijing, China Construction Industry Press, 1981.
   2, Yu Kangtai, "Modern Ceramic Glaze and Decorative Technology Manual", 1999.
Visual inspection is widely used in industrial manufacturing product assembly and quality inspection. According to customer needs, the whole package generally includes the following parts:
A. Camera (take picture) selection According to customer needs, choose different models of camera
B. Lens (with camera) select different focal lengths according to product size and object distance
C. Light source (the part that needs to be detected when the light is filled and illuminated)
D. Software (analytical program)
E. Industrial computer (running detection software and input and output)
F. Output part (IO control card, serial port, network port)
Performance characteristics:
Process for synthesizing zircon-based ceramic pigments from zircon powder
I. Introduction 0 °C Keep warm for 1 to 2 hours. 0 °C Add appropriate amount of NaF, Pr 6 O 11 to make yttrium, calcination temperature is 900-115 0 °C Add appropriate amount of NaF, Fe 2 O 3 to make zirconium iron red, calcination temperature is 900-115 0 °C .