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Superhigh temperature refractory pyrometric cone and preparation method thereof

A temperature measuring cone and ultra-high temperature technology, applied in thermometers, measuring devices, measuring heat and other directions, can solve the problems of difficult to accurately measure, cannot reflect the ambient temperature of the kiln well, and achieve intuitive and clear test results, filling the measurement gap. , the effect of rich source of raw materials

Inactive Publication Date: 2011-01-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to accurately measure the temperature higher than 1800 ℃ for other temperature measurement methods. Only infrared temperature measurement can be involved. However, infrared temperature measurement only measures the temperature of a certain point of the entity, which cannot reflect the overall ambient temperature in the kiln well.

Method used

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  • Superhigh temperature refractory pyrometric cone and preparation method thereof

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Effect test

Embodiment 1

[0026] Preparation of 1820℃ temperature measuring cone

[0027] Mix clay, quartz sand and alumina according to the mass ratio of 80:3:17, use 1% water glass solution as an additive, and use a triangular pyramid mold to form it by hand; The high-temperature furnace is pre-fired at 1000-1200°C for 6-10 hours and then cooled to obtain the product.

[0028] The composition of the temperature measuring cone is 47-50wt.%Al 2 o 3 , 49~52wt.% SiO 2 , Fe 2 o 3 0.01~1wt.%, K 2 O+Na 2 O is 0-1wt.%, and CaO is 0.01-0.5wt.%. After measuring and comparing with the 1800°C national standard temperature measuring cone and the 1820°C German standard temperature measuring cone, its refractoriness is 1820°C.

Embodiment 2

[0030] Preparation of 1820℃ temperature measuring cone

[0031] Mix clay, quartz sand and alumina according to a mass ratio of 93:2:5, use 2% water glass solution as an additive, and use a triangular pyramid mold for hand molding; after molding, dry in an oven at 60°C for 30 to 60 hours, and then enter The high-temperature furnace is pre-fired at 1000-1200°C for 6-10 hours and then cooled to obtain the product.

[0032] The composition of the temperature measuring cone is 47-50wt.%Al 2 o 3 , 49~52wt.% SiO 2 , Fe 2 o 3 0.01~1wt.%, K 2 O+Na 2 O is 0-1wt.%, and CaO is 0.01-0.5wt.%. After measuring and comparing with the 1800°C national standard temperature measuring cone and the 1820°C German standard temperature measuring cone, its refractoriness is 1820°C.

Embodiment 3

[0034] Preparation of 1880℃ temperature measuring cone

[0035] Mix clay, quartz sand and alumina according to the mass ratio of 50:2.5:47.5, use 3% water glass solution as an additive, and use a triangular pyramid mold to form it by hand; The high-temperature furnace is pre-fired at 1000-1200°C for 6-10 hours and then cooled to obtain the product.

[0036] The composition of the temperature measuring cone is 66 ~ 69wt.% Al 2 o 3 , 30~33wt.% SiO 2 , Fe 2 o 3 0.01~0.6wt.%, K 2 O+Na 2 O is 0-0.8wt.%, and CaO is 0.01-0.3wt.%. After comparing with the 1880°C German standard temperature measuring cone, its refractoriness is 1880°C.

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Abstract

The invention relates to a superhigh temperature refractory pyrometric cone and a preparation method thereof, and belongs to the field of pyrometric cones and preparation thereof. The pyrometric cone comprises the following components in percentage by weight: 47-97% of Al2O3, 2-52% of SiO2, 0.01-1% of Fe2O3, 0-1% of K2O and Na2O, and 0.01-0.5% of CaO. The preparation method comprises the following steps: mixing clay, quartz sand and alumina, adding 1-3% water glass solution, and forming; after forming, drying, and presintering in a high temperature furnace to obtain the pyrometric cone. The pyrometric cone is used for stable measurement at 1820-2000 DEG C. The test result is visual and clear and can truly reflect the temperature of the hot environment; and the invention has the advantagesof simple preparation method and low cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of temperature measuring cone and its preparation, in particular to an ultra-high temperature refractory temperature measuring cone and its preparation method. Background technique [0002] Ceramics, refractory materials, glass and other industries all require high-temperature firing, so how to accurately measure the temperature is necessary for the control of firing and other temperature systems. [0003] At present, the commonly used temperature control includes thermocouple, thermal resistance, optical pyrometer and infrared pyrometer. Each of these testing methods has advantages and disadvantages. In addition, there is a commonly used industrial temperature measurement method, that is, the use of refractory temperature measuring cones for temperature measurement, [0004] The temperature measuring cone was created by the German Segel in 1885 and has been used since 1886. This one-time use, cheap and easy-to-ope...

Claims

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Application Information

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IPC IPC(8): C04B35/66G01K5/48
Inventor 宁伟汪庆卫沈玉君陈维迪徐道行朱国荣吴月明
Owner DONGHUA UNIV
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