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Ceramic material for grinding head

A technology of ceramic material and grinding head, applied in the field of ceramic grinding head material composition, can solve the problems of reducing production cost and the like

Active Publication Date: 2017-05-24
NINGBO CHEFSHERE KITCHEN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a ceramic material for grinding head, which can overcome the defects of existing ceramic materials, realize that both the outer grinding head material and the inner grinding material are made of ceramics, and reduce production costs

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, the material of the outer grinding head is composed of 82.5% of aluminum oxide, 8% of magnesium oxide, 6% of silicon oxide and 3.5% of titanium dioxide with a purity of ≥99%; the material of the inner grinding head is composed of 52% of alumina with purity ≥99%, 20% of zirconia with purity ≥94%, 7% of magnesium oxide, 8% of silicon oxide and 14% of titanium dioxide. The molding pressure used is 430MPa for the outer grinding head and 450MPa for the inner grinding head; the initial firing temperature is 700°C-800°C for the outer grinding head and 550°C-600°C for the inner grinding head; Then the final firing is carried out in two stages. The two stages here mean that the temperature rise process is carried out in two stages, and the final refining temperature is 1675°C-1685°C; the refining uses a hydrogen furnace. This embodiment is the optimal technical solution.

Embodiment 2

[0033] In this embodiment and subsequent embodiments, only the composition of each material and the molding pressure are changed, and the rest are the same as in Embodiment 1.

[0034]The material of the outer grinding head is composed of 80% of alumina, 12% of magnesium oxide, 5% of silicon oxide and 3% of titanium dioxide with a purity of ≥99%; the material of the inner grinding head is composed of 80% of purity ≥99% by weight. 50% of aluminum oxide, 25% of zirconia with purity ≥94%, 5% of magnesium oxide, 5% of silicon oxide and 15% of titanium dioxide. The molding pressure adopted is that the molding pressure of the outer grinding head is 410MPa, and the molding pressure of the inner grinding head is 430MPa.

Embodiment 3

[0036] The material of the outer grinding head is composed of 85% of alumina, 6% of magnesium oxide, 5% of silicon oxide and 4% of titanium dioxide with a purity of ≥99%; the material of the inner grinding head is composed of 85% of purity ≥99% by weight. 55% of alumina, 27% of zirconia with purity ≥94%, 3% of magnesia, 3% and 12% of silicon oxide. The molding pressure adopted is that the molding pressure of the outer grinding head is 420MPa, and the molding pressure of the inner grinding head is 440MPa.

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Abstract

The invention relates to a ceramic material for a grinding head. The ceramic material comprises an outer grinding head material and an inner grinding head material, wherein the outer grinding head material is prepared from the following raw materials in percentage by weight: 80-90% of aluminum oxide of which the purity is greater than or equal to 99%, 5-15% of magnesium oxide, 3-10% of silicon oxide and 3-5% of titanium dioxide; and the inner grinding head material is prepared from the following raw materials in percentage by weight: 50-60% of aluminum oxide of which the purity is greater than or equal to 99%, 20-30% of zirconium oxide of which the purity is greater than or equal to 94%, 5-15% of magnesium oxide, 3-10% of silicon oxide and 12-20% of titanium dioxide. Through the ceramic material, the defects of the existing ceramic material can be overcome, the aim that the outer grinding head material and the inner grinding head material are manufactured by ceramics is achieved, the dosage of the zirconium oxide is reduced, and thus the production cost is lowered.

Description

technical field [0001] The invention belongs to the field of kitchen utensils and ceramic materials, and specifically refers to a ceramic grinding head material for producing kitchen grinders. Background technique [0002] There are basically three ways to crush granular condiments: one is to grind the condiments in traditional ways such as crushing; the other is to grind a large amount of condiments and take them at any time; grind. Among these three methods, the traditional grinding method is time-consuming and laborious, and the mashing equipment is relatively large and inconvenient to use. The method of crushing a large amount of condiments and taking them at any time is relatively simple in use, but the disadvantage of this method is that when the condiments are crushed, the protection system of the original condiments is destroyed, resulting in accelerated oxidation reaction and easy Reduce or lose the efficacy of condiments. In order to change the shortcoming of ab...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/63A47J42/38
Inventor 张国平
Owner NINGBO CHEFSHERE KITCHEN TECH
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