Microwave heating body and method for manufacturing same

A heating element and microwave technology, which is applied in microwave heating, clay products, and other household appliances, etc., can solve the problem that the heating temperature cannot be too high, and achieve the effect of improving production efficiency.

Inactive Publication Date: 2010-07-28
陈潮通 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the heating body uses organic resin as a binder, the heating temperature cannot be too high, so it can only be used in the heated item

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] formula:

[0024] Microwave active granular material: the selected particle size specification is 80 mesh silicon carbide 50Kg, 300 mesh iron oxide 5.5Kg;

[0025] Binder: Particle specifications are 80 mesh fused silica 15Kg, 200 mesh potassium feldspar 6Kg, 200 mesh albite 5.5Kg, 325 mesh kaolin 8Kg, 325 mesh soft clay 10Kg, sodium silicate 6Kg.

[0026] Dissolve sodium silicate in water to form a sodium silicate solution, put silicon carbide, fused quartz, potassium feldspar and albite into a mixing container and stir and mix, add sodium silicate solution under constant stirring, and the granular material is fully wetted , add kaolin, soft clay and iron oxide, mix evenly, sieve, and press mold to make a round green body with a thickness of 0.8-2cm and a diameter of 15-30cm. Calcined for 8 hours to obtain a microwave heating element.

[0027] Take several microwave heating elements and heat them in a microwave oven with a rated power of 900-1300W. After 2 minutes, t...

Embodiment 2

[0032] formula:

[0033] Microwave active granular material: the selected particle size specification is 80 mesh silicon carbide 45Kg, 300 mesh iron oxide 10Kg;

[0034] Binder: Particle specifications are 30Kg of 120-mesh fused silica, 5Kg of 325-mesh kaolin, 5Kg of 325-mesh soft clay, and 5Kg of sodium silicate.

[0035] Put silicon carbide and fused quartz into a mixing container and stir to mix. Add sodium silicate solution formed by dissolving sodium silicate in water while stirring. After the granular material is fully wetted, add kaolin, soft clay and iron oxide and mix well Afterwards, it is sieved and molded to form a round green body with a thickness of 0.8-1.5 cm and a diameter of 15-30 cm. After the green body is dried, it is calcined in a kiln at 1190°C for 8 hours to obtain a microwave heating element.

[0036] Take several microwave heating elements and heat them in a microwave oven with a rated power of 900-1300W. After 2 minutes, the surface temperature will ...

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PUM

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Abstract

The invention discloses a high temperature-resistance, safe and nontoxic microwave heating body and a method for manufacturing the same. The microwave heating body comprises a microwave active particle material and a bonding agent by which the microwave active particle material is bonded into a usable shape, wherein the microwave active particle material is silicon carbide, ferrite or a combination of the silicon carbide and the ferrite; and the bonding agent is a combination of fused quartz, talcpowder, spodumene, cordierite, mullite, feldspar, kaolin, soft clay and silicic acid. The preparation method comprises the following steps that: the raw materials are uniformly mixed and moulded; and a blank is dried and then sintered at the temperature of between 900 and 1,280 DEG C to form the microwave heating body. The microwave heating body does not burst when the microwave heating body is chilled from nearly 500 DEG C to room temperature, a good linear relationship is established between the microwave heating time and the surface temperature of the heating body, and the use performance requirements on cooking devices and industrial ovens are met.

Description

technical field [0001] The invention relates to absorbing microwaves to emit heat, and thus can be applied to a microwave heating device as a heat source and a manufacturing method thereof. Background technique [0002] Microwave heating devices, such as microwave ablation, extraction, synthesis and other equipment, have been widely used in scientific research and production. Microwave ovens are also indispensable household appliances for people's home life. However, due to the poor molecular polarity and low microwave absorption rate of many heated items, the heating rate in the microwave heating process is slow. At the same time, there are surplus microwaves in the microwave oven. The overheating of components will affect the service life of microwave ovens. Therefore, in the use of household microwave ovens, foods with low water content such as bread and grilled foods cannot be heated in microwave ovens due to their poor microwave absorption ability. [0003] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B35/565C04B35/26C04B35/622H05B6/64
Inventor 陈潮通任建平江涛
Owner 陈潮通
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