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Heat-resistant ceramic utensil and preparation method thereof

A technology for ceramics and utensils, applied in the field of heat-resistant ceramic utensils and their preparation, can solve problems such as easy burning and cracking, and achieve the effect of wide application space

Inactive Publication Date: 2022-03-22
重庆天戈陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the thermal shock resistance of spodumene casserole has been improved, it is still easy to burn.

Method used

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  • Heat-resistant ceramic utensil and preparation method thereof

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preparation example Construction

[0016] A kind of preparation method of heat-resistant ceramic utensil provided by the present invention, comprises the following steps:

[0017] S1. Pretreatment of various raw materials for preparing ceramic utensils: manual selection and crushing of raw materials.

[0018] S2. Add purple wood, hard clay, soft clay, quartz, calcined talc and alumina that have been pretreated in S1 into the ball mill. Lithium feldspar is divided into four parts and then added in stages. Add the first portion of lithium petalite into the ball mill, grind finely for 1 hour, add the second portion of lithium petalite, and add the third portion of lithium petalite after fine grinding for 2 hours. In the invention, the petalite feldspar is finely ground three times to ensure the rationality of raw material particle distribution. When the fineness of lithium feldspar in the ball mill is 0.3-0.5%, pour the raw materials in the ball mill into the mud pool, add the fourth part of lithium feldspar, st...

Embodiment 1

[0038] The raw materials of the embryo body are: petalite feldspar 50%, purple wood knot 10%, hard clay 15%, soft clay 10%, quartz 10%, calcined talc 3% and alumina 2%. Additional additives were added at 5%.

[0039] S1. Carry out manual preliminary selection of the above-mentioned raw materials, test burn and select them, and use a ball mill to grind them finely by wet method.

[0040] S2. Add 10% of purple wood knots pretreated by S1, 15% of hard clay, 10% of soft clay, 10% of quartz, 3% of burnt talc, and 2% of alumina into the ball mill. Lithium feldspar is divided into four parts and then added in stages. Add the first portion of lithium petalite into the ball mill, grind finely for 1 hour, add the second portion of lithium petalite, and add the third portion of lithium petalite after fine grinding for 2 hours. When the fineness of lithium feldspar in the ball mill is 0.3-0.5%, pour the raw materials in the ball mill into the mud pool, add the fourth part of lithium fel...

Embodiment 2

[0053] The raw materials of the embryo body are: 45% petalite feldspar, 14% purple wood knot, 15% hard clay, 10% soft clay, 10% quartz, 3% burnt talc and 3% alumina, and add 8% additives.

[0054] Glaze formula: petalite 50%, spodumene 10%, quartz 16%, bovine bone 3%, kaolin 7%, barium carbonate 2%, calcite 3%, talc 5%, zinc oxide 3%, oxide Nickel 1%. In addition, 0.5% of rare earth and 13.5% of additives are added.

[0055] The method for preparing ceramic casserole is the same as embodiment 1.

[0056] Heat the 6L ceramic casserole produced in Example 1 and Example 2 to 1100°C in a high-temperature electric furnace, open the furnace door suddenly, and quickly put the reddened casserole into cold water with iron clips. No cracks are seen, and the products produced continuously are stable in thermal shock resistance.

[0057] The existing casserole pots with spodumene as the main raw material on the market generally have thermal shock resistance not exceeding 600°C-20°C wit...

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Abstract

The invention discloses a preparation method of a heat-resistant ceramic utensil, which comprises the following steps: pretreating raw materials for preparing a blank body, the raw materials comprising 45-50% by mass of a low-expansion lithium material; finely grinding the pretreated low-expansion lithium-based material by several times and preparing mud; after mud preparation, pugging, blank preparation and biscuiting are carried out, and the biscuiting temperature is 850-900 DEG C; the thermal shock resistance of the prepared heat-resistant ceramic utensil can reach 1100-20 DEG C, and the heat-resistant ceramic utensil does not crack after being quenched.

Description

technical field [0001] The invention relates to a heat-resistant ceramic utensil and a preparation method thereof, belonging to the technical field of ceramic utensil manufacturing. Background technique [0002] Traditional ceramic casserole is regarded as healthy cooking utensils by the world because it is far away from metal, authentic, non-toxic and harmless. However, the traditional earthen casserole is gradually abandoned by modern families because of its rough production and low price. And using a large amount of mineral resources is also a kind of waste, and a large amount of waste casserole has seriously affected the urban environment. [0003] The spodumene casserole introduces lithium oxide into the material, which reduces the thermal expansion coefficient of the material, thereby appropriately improving the thermal stability of the material, and basically solving the problem that the traditional casserole is easy to crack when it is fired. However, although the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04C04B33/13C04B33/16C04B33/34C04B41/86C03C8/00
CPCC04B33/04C04B33/13C04B33/16C04B33/34C03C8/00C04B41/86C04B41/5022C04B2235/6567C04B2235/661C04B2235/9607C04B41/4539C04B41/0072
Inventor 梁波
Owner 重庆天戈陶瓷有限公司
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