Silicon carbide honeycomb ceramic pug and pugging method
A technology of silicon carbide honeycomb and ceramic mud, which is applied to ceramic products, other household appliances, household appliances, etc., can solve the problems of easy formation of dust, easy precipitation, uneven mixing of stirring powder, etc., to improve the quality and number of channels, The effect of increasing the density and improving the technical indicators
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Embodiment 1
[0025] Weigh 70 grams of silicon carbide with a particle size of 6-20 μm, 10 grams of silicon carbide with a particle size of 15-40 μm, and 20 grams of silicon carbide with a particle size of 0.5-1.5 μm. Taking the above raw powder as the counterweight base, weigh 4 grams of hydroxypropyl methylcellulose, 6 grams of carbon powder, 20 grams of tung oil, 5 grams of high polymer release agent, 30 grams of water, and 5 grams of glycerin for later use. Mix with water and stir to form glycerol aqueous solution.
[0026] The mud refining steps are as follows:
[0027] 1) Mixing: Add the above-mentioned silicon carbide main materials of three different particle size ranges into the mixer, and stir for 5 minutes to make it evenly mixed;
[0028] 2) After the silicon carbide main ingredients are fully mixed, add the above-mentioned weighed hydroxypropyl methylcellulose and carbon powder and stir for 30 minutes, add tung oil and mold release agent and stir for 40 minutes, then add glyce...
Embodiment 2—4
[0032] On the basis of Example 1, the proportioning relationship of the main material and the auxiliary material is changed as shown in the table below, and the rest of the conditions are unchanged.
[0033] Ratio table of main ingredients Unit: gram
[0034] Example 6-20μm silicon carbide 15-40μm silicon carbide 0.5-1.5μm silicon carbide Example 2 90 4 6 Example 3 86 8 16 Example 4 78 9 13
[0035] Ratio Table of Excipients Unit: Gram
[0036] Example Hydroxypropylmethylcellulose toner Tung oil polyethylene glycol water glycerin Example 2 11 10 4 0.5 15 1 Example 3 8 8 10 3 20 4 Example 4 6 9 15 2 18 3
[0037] The two stale processes in the above mud refining step are to place the mud on a light-proof indoor shelf, keep the indoor temperature at about 25°C, and let the air humidity stand at about 70% for 3 days.
Embodiment 5—6
[0039] On the basis of Example 2, the proportioning relationship of auxiliary materials is changed as shown in the table below, and all the other conditions remain unchanged.
[0040] Ratio Table of Excipients Unit: Gram
[0041] Example binder Porogen lubricant silicone oil water plasticizer Example 5 Methylcellulose: 11 Graphite: 10 Ethanol: 4 0.5 15 Polyol: 1 Example 6 Polyvinyl alcohol: 7 Coal powder: 7 Oil: 8 4 26 Ammonium ethyl methyl sulfate: 4
[0042] The two stale processes in the above mud refining step are to place the mud on a light-proof indoor shelf, keep the indoor temperature at about 20°C, and let the air humidity stand at about 60% for 4 days.
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