Method used for centrifugation deposition coating of booster output screen with fluorescent powder layer
A technology of centrifugal precipitation and phosphor layer, which is applied in luminescent coatings, alkali metal silicate coatings, etc., can solve the problems affecting the yield and production efficiency of the output screen of the intensifier, and cannot guarantee the uniformity of phosphor precipitation, etc. Density and Flatness, Cost Savings, Yield Improvement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0060] Ultrasonic cleaning machine is used for ultrasonic homogenization treatment in the preparation process of phosphor slurry;
[0061] The detection and selection steps of the phosphor slurry are as follows: first, use the phosphor slurry photometric detector to detect the concentration of the prepared phosphor slurry, select the phosphor slurry with a concentration range of 10-14mg / L, and then select Phosphor powder slurry using a phosphor slurry particle counter to detect the particle size and particle size distribution, and further select the phosphor powder slurry whose particle size is concentrated in the range of 2 to 4 μm, wherein:
[0062] Such as figure 1 As shown, the phosphor paste photometric detector 1 includes a light source 11, a first light transmission slit 12, a sample cell 13, a second light transmission slit 15, a detector 16, a data processor 17 and a first light transmission slit arranged in sequence. A display 18, a colorless and transparent cuvette...
Embodiment 1
[0072] S01, preparation of phosphor paste
[0073] S01-1. Prepare binder blending solution and electrolyte blending solution
[0074] Pour 36L of deionized water into the mixing tank, and measure 20L of the binder stock solution with a concentration of 28%. The binder is potassium silicate, filter and inject it into the mixing tank, and stir for 30 minutes to obtain a binder solution with a concentration of 10%. ;
[0075] Pour 4g of electrolyte and 500mL of deionized water into a measuring cup, stir to dissolve, then stir in a screen roller for 20 minutes, then filter through a 300-mesh filter, and prepare an electrolyte reconciliation solution with a concentration of 0.8%, in which strontium nitrate is selected as the electrolyte;
[0076] S01-2. Preparation of Phosphor Powder Solution and Ultrasonic Homogenization Treatment
[0077] Measure 125g chemical formula is (Gd 1-x Yb x ) 2 Zr 2 o 3 , where the fluorescent powder of x=0.03 is added in a plastic measuring cup,...
Embodiment 2
[0096] Compared with Example 1, this embodiment is the same except that the process parameters related to the preparation of the phosphor powder slurry in step S01 and the speed of the driving motor and the centrifugal sedimentation time in step S03-2 are different, and the other steps are the same, as follows:
[0097] S01, preparation of phosphor paste
[0098] S01-1. Prepare binder blending solution and electrolyte blending solution
[0099] Pour 32L of deionized water into the mixing tank, and measure 15L of the binder stock solution with a concentration of 28%. The binder is sodium silicate, filter it into the mixing tank, and stir for 25 minutes to obtain a binder solution with a concentration of 8.94%. ;
[0100] Pour 3g of electrolyte and 450mL of deionized water into a measuring cup, stir to dissolve, then stir in a screen roller for 20 minutes, then filter through a 300-mesh filter, and prepare an electrolyte reconciliation solution with a concentration of 0.67%. Th...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More