A coating for auxiliary electrodes of silicon-fixed sensors and its preparation method
A technology for auxiliary electrodes and sensors, applied in the direction of alkali metal silicate coatings, coatings, etc., can solve the problems that the stability of auxiliary electrodes cannot be guaranteed, so as to improve the working efficiency of blast furnaces, improve stability, and excellent high-temperature adhesion performance Effect
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[0034] Example 1
[0035] A paint used for an auxiliary electrode of a fixed silicon sensor and a preparation method thereof. The composition and content of the paint used to fix the auxiliary electrode of the silicon sensor in this embodiment are:
[0036] Ethanol 35~40wt%;
[0037] Triethanolamine 0.5~0.7wt%;
[0038] Butyl benzyl phthalate 0.5~0.7wt%;
[0039] Water glass 4~6wt%;
[0040] Polyvinyl butyral 0.5~0.7wt%;
[0041] Silica 30~36.5wt%;
[0042] Calcium fluoride powder 20~26.5wt%.
[0043] The preparation method of this embodiment is: according to the composition and content of the coating, firstly, ethanol and triethanolamine are mixed in a ball mill for 15 to 18 minutes to obtain a premix. Then, silica powder and calcium fluoride powder are added to the premix, and ball milled for 8-10 hours to obtain slurry I. Then add water glass to the slurry I and ball mill for 4 to 5 hours to obtain slurry II. Finally, polyvinyl butyral and butyl benzyl phthalate are added to the slur...
Example Embodiment
[0048] Example 2
[0049] A paint used for an auxiliary electrode of a fixed silicon sensor and a preparation method thereof. The composition and content of the paint used to fix the auxiliary electrode of the silicon sensor in this embodiment are:
[0050] Ethanol 34~39wt%;
[0051] Triethanolamine 0.6~0.8wt%;
[0052] Butyl benzyl phthalate 0.6~0.8wt%;
[0053] Water glass 4.8~6.8wt%;
[0054] Polyvinyl butyral 0.6~0.8wt%;
[0055] Silica 30.5~37wt%;
[0056] Calcium fluoride powder 20.5~27wt%.
[0057] The preparation method of this embodiment is: according to the composition and content of the coating, firstly, ethanol and triethanolamine are mixed in a ball mill for 18-22 minutes to obtain a premix. Then add silica powder and calcium fluoride powder to the premix, and ball mill for 10-12 hours to obtain slurry I. Then add water glass to the slurry I and ball mill for 5-6 hours to obtain slurry II. Finally, polyvinyl butyral and butyl benzyl phthalate are added to the slurry II, and...
Example Embodiment
[0062] Example 3
[0063] A paint used for an auxiliary electrode of a fixed silicon sensor and a preparation method thereof. The composition and content of the paint used to fix the auxiliary electrode of the silicon sensor in this embodiment are:
[0064] Ethanol 33~38wt%;
[0065] Triethanolamine 0.7~0.9wt%;
[0066] Butyl benzyl phthalate 0.7~0.9wt%;
[0067] Water glass 5.4~7.4wt%;
[0068] Polyvinyl butyral 0.7~0.9wt%;
[0069] Silica 31~37.5wt%;
[0070] Calcium fluoride powder 21~27.5wt%.
[0071] The preparation method of this embodiment is: according to the composition and content of the coating, first mix ethanol and triethanolamine in a ball mill for 22~26 minutes to obtain a premix; then add silica powder to the premix , Calcium fluoride powder, ball mill for 12-14h to obtain slurry Ⅰ. Then add water glass to the slurry I and ball mill for 6-7 hours to obtain slurry II. Finally, polyvinyl butyral and butyl benzyl phthalate were added to the slurry II, and the coating was pr...
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