Fireproof bus groove and preparation process thereof
A technology of fire-resistant busway and busway, which is applied in the installation of busway, epoxy resin glue, adhesive type, etc., which can solve the problems of shortened service life of busway, poor temperature resistance of insulating partitions, and reduced work efficiency , to achieve the effect of prolonging service life, good fire performance and simple structure
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Embodiment 1
[0053] A fire-resistant bus duct provided in this embodiment has a structure such as Figure 1-2 As shown, an insulating partition is used in the busway, and the insulating partition is arranged between adjacent conductive sheets. The insulating partition is slid and set in the chute of the busway through the sliding seat at the bottom of the insulating partition. The insulating partition includes Make the upper partition and the lower partition of the same material, wherein:
[0054] The layered materials of the upper partition and the lower partition are the same, mainly including the main base material layer 1 and the glass fiber cloth layer 2. The main base material layer 1 is set up and down to form a hollow structural main board. Fiber cloth layer 2, the glass fiber cloth layer 2 placed on the upper side of the main body base material layer 2 is provided with an inorganic layer 3, and the glass fiber cloth layer 2 placed on the lower side of the main body base material l...
Embodiment 2
[0061] This embodiment provides the preparation process of the refractory bus duct in Example 1, wherein the preparation process of the insulating partition specifically includes the following steps:
[0062] (1) Preparation of water-based epoxy insulating adhesive, the specific steps are:
[0063] a. Synthesis of waterborne epoxy resin: put bisphenol A epoxy resin and propylene glycol methyl ether into a 500ml four-neck flask with agitator, reflux condenser, constant pressure dropping funnel and thermometer, then add 80% Polyethylene glycol and 25% anhydride, in N 2 Under protection, heat to 150°C, react for 1 hour, then cool down to 100°C, add all the remaining polyethylene glycol and acid anhydride, raise the temperature to 140°C and stir for 10 minutes, then add the neutralizing agent trialkylolamine, stir for 20 minutes and adjust the pH The value is 7, finally add deionized water, control the temperature at 35°C, stir for 30min and discharge to obtain water-based epoxy ...
Embodiment 3
[0080] This embodiment provides the preparation process of the refractory bus duct in Example 1, wherein the preparation process of the insulating partition specifically includes the following steps:
[0081] (1) Preparation of water-based epoxy insulating adhesive, the specific steps are:
[0082]a. Synthesis of waterborne epoxy resin: put bisphenol A epoxy resin and propylene glycol methyl ether into a 500ml four-neck flask with agitator, reflux condenser, constant pressure dropping funnel and thermometer, then add 80% Polyethylene glycol and 25% anhydride, in N 2 Under protection, heat to 170°C, react for 3 hours, cool down to 110°C, add all the remaining polyethylene glycol and acid anhydride, raise the temperature to 160°C and stir for 13 minutes, then add the neutralizing agent trialkylolamine, stir for 20-30 minutes and Adjust the pH value to 8, finally add deionized water, control the temperature at 50°C, stir for 50 minutes and discharge to obtain a water-based epoxy...
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