Adhesive for insulator

Abstract

The invention relates to the technical field of insulator production materials, and particularly discloses an adhesive for insulators. The adhesive comprises the following raw materials in parts by weight: 1-2 parts of Portland cement, 0.5-1.5 parts of cementing sand, 0.03-0.06 part of silica fume and 0.2-0.4 part of a mixed solution, and the mixed solution comprises a defoaming agent, a water reducing agent and water. By adopting the adhesive obtained according to the proportion in the patent, the problems that in the prior art, the breaking strength of an insulator is reduced and the breakdown rate is increased due to the fact that the shrinkage rate is increased while high breaking strength is generated by increasing the lime-sand ratio are solved.

Description

technical field

[0001] The invention relates to the technical field of insulator production materials, in particular to an adhesive for insulators. Background technique

[0002] Electrical ceramics are referred to as electric ceramics, and electric ceramics refer to a type of porcelain insulators that are fired at high temperature with bauxite, kaolin, feldspar and other natural minerals as the main raw materials and are used in power industry systems, including various line insulators and insulators for power station appliances. , and other insulating parts for isolation or support of charged bodies. Electric porcelain insulators are important basic devices in the power industry. They are used in power systems for support and insulation, and sometimes as containers for other electrical components. Therefore, there are higher requirements for its mechanical properties, electrical properties, and environmental resistance (hot and cold, anti-pollution, aging, etc.).

[0003] ...

Examples

Embodiment 1

[0030] An adhesive for insulators, including 1kg of Portland cement, 0.5kg of colloidal sand, 0.03kg of silica fume and 0.2L of mixed solution, wherein the mixed solution is made of pure water, defoamer and water reducer ; Portland cement chooses brand PI52.5, which is an ultrafine powder material, and the particles with a fineness of ≤0.09mm are 100%; the cementitious sand includes SiO with a mass fraction of 95% 2 and 5% Fe 2 o 3 , the fineness of 0.3-1mm particles in the colloidal sand is more than 80%, the pH value of the pure water in the mixed solution is 7.0-7.2, and the fineness of the silica fume is greater than 250 mesh.

[0031] The preparation method of the above-mentioned adhesive for insulators comprises the following steps:

[0032] S1: Weigh 1kg Portland cement, 0.5kg gelatinous sand and 0.03kg silica fume and mix them evenly;

[0033] S2: Mix the defoamer, water reducer and water to obtain a mixed solution. In this example, when preparing the mixed solution...

Embodiment 2～6

[0035] Embodiment 2~6 and comparative example 1~5:

[0036] The difference from Example 1 is that the proportions of raw materials are different, and the proportions are shown in Table 1.

[0037] Table 1 is the raw material proportion table of embodiment 2~6 and comparative example 1~5

[0038]

[0039]

Embodiment 7

[0041] The difference with Example 1 is that an improved cement mixer is used in step S3 of Example 7, and the cement mixer combines figure 1 with figure 2 As shown, a mixing bucket is included, a supporting foot 11 is set at the bottom of the mixing bucket, and the top of the mixing bucket is closed, and a stirring mechanism is arranged in the mixing bucket, wherein the stirring mechanism includes a motor 12, a stirring shaft 13 and a stirring paddle 14, wherein the motor 12 is fixed on the mixing bucket, the stirring shaft 13 is connected to the top of the mixing bucket in rotation, the stirring shaft 13 is fixedly connected with the output shaft of the motor 12, and the stirring paddle 14 is fixed on the stirring shaft 13.

[0042] The top of the mixing bucket is provided with a feed inlet 15, a liquid inlet 16 and a cleaning port, and the bottom of the mixing bucket is provided with a discharge valve 17, wherein a feed hopper 18 is fixed at the feed inlet 15, in order to ...

technical field

[0001] The invention relates to the technical field of insulator production materials, in particular to an adhesive for insulators. Background technique

[0002] Electrical ceramics are referred to as electric ceramics, and electric ceramics refer to a type of porcelain insulators that are fired at high temperature with bauxite, kaolin, feldspar and other natural minerals as the main raw materials and are used in power industry systems, including various line insulators and insulators for power station appliances. , and other insulating parts for isolation or support of charged bodies. Electric porcelain insulators are important basic devices in the power industry. They are used in power systems for support and insulation, and sometimes as containers for other electrical components. Therefore, there are higher requirements for its mechanical properties, electrical properties, and environmental resistance (hot and cold, anti-pollution, aging, etc.).

[0003] ...

Examples

Embodiment 1

[0030] An adhesive for insulators, including 1kg of Portland cement, 0.5kg of colloidal sand, 0.03kg of silica fume and 0.2L of mixed solution, wherein the mixed solution is made of pure water, defoamer and water reducer ; Portland cement chooses brand PI52.5, which is an ultrafine powder material, and the particles with a fineness of ≤0.09mm are 100%; the cementitious sand includes SiO with a mass fraction of 95% 2 and 5% Fe 2 o 3 , the fineness of 0.3-1mm particles in the colloidal sand is more than 80%, the pH value of the pure water in the mixed solution is 7.0-7.2, and the fineness of the silica fume is greater than 250 mesh.

[0031] The preparation method of the above-mentioned adhesive for insulators comprises the following steps:

[0032] S1: Weigh 1kg Portland cement, 0.5kg gelatinous sand and 0.03kg silica fume and mix them evenly;

[0033] S2: Mix the defoamer, water reducer and water to obtain a mixed solution. In this example, when preparing the mixed solution...

Embodiment 2～6

[0035] Embodiment 2~6 and comparative example 1~5:

[0036] The difference from Example 1 is that the proportions of raw materials are different, and the proportions are shown in Table 1.

[0037] Table 1 is the raw material proportion table of embodiment 2~6 and comparative example 1~5

[0038]

[0039]

Embodiment 7

[0041] The difference with Example 1 is that an improved cement mixer is used in step S3 of Example 7, and the cement mixer combines figure 1 with figure 2 As shown, a mixing bucket is included, a supporting foot 11 is set at the bottom of the mixing bucket, and the top of the mixing bucket is closed, and a stirring mechanism is arranged in the mixing bucket, wherein the stirring mechanism includes a motor 12, a stirring shaft 13 and a stirring paddle 14, wherein the motor 12 is fixed on the mixing bucket, the stirring shaft 13 is connected to the top of the mixing bucket in rotation, the stirring shaft 13 is fixedly connected with the output shaft of the motor 12, and the stirring paddle 14 is fixed on the stirring shaft 13.

[0042] The top of the mixing bucket is provided with a feed inlet 15, a liquid inlet 16 and a cleaning port, and the bottom of the mixing bucket is provided with a discharge valve 17, wherein a feed hopper 18 is fixed at the feed inlet 15, in order to ...

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