High-performance daily-use ceramic for dishwashing machine and preparation method of daily-use ceramic

A high-performance, dishwasher-safe technology, applied in the field of ceramic materials, can solve the problems of poor dishwasher-resistant performance, and achieve the effects of improving safety, easy industrial application and promotion, and improving strength

Active Publication Date: 2020-02-07
JINGDEZHEN CERAMIC INSTITUTE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As we all know, prestressed reinforced design is widely used in the field of concrete structures and tempered glass (prestressed glass), but due to the complexity of ceramic materials, how to use prestressed technology to improve the resistance of daily ceramics under the conditions of specific dishwashers? Thermal shock performance and service life, solving the problem of poor dishwasher resistance of daily-use ceramic products is a problem that still needs to be solved in the field of daily-use ceramics

Method used

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  • High-performance daily-use ceramic for dishwashing machine and preparation method of daily-use ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. The present embodiment is a high-performance daily-use ceramics for dishwashers, which is composed of a daily-use ceramic body and a coating covering its surface.

[0026] The raw materials of the ceramic body for daily use are 30 wt% of Jiepai soil, 27 wt% of quartz, 20 wt% of Datong soil, and 23 wt% of feldspar.

[0027] The slurry of coating is made up of base material and binder solution according to weight ratio base material: binder solution=1: 1.2; 1200 mesh) 50 wt%, MgO 15 wt%, zirconium silicate 5 wt%, spodumene 10 wt%, binder solution is PVA solution, its concentration is 0.5 wt%.

[0028] 2. The preparation method of the above-mentioned high-performance household ceramics for dishwashers in this embodiment, the steps are as follows:

[0029] (1) Preparation of daily-use ceramic body: According to the ingredients of the raw materials of the above-mentioned daily-use ceramic body, wet ball milling (ingredients: ball: water = 1:2:0.5), sieving to remove iron...

Embodiment 2

[0035] The present embodiment is a kind of high-performance daily-use ceramics for dishwashers and a preparation method thereof, which differs from Embodiment 1 in that:

[0036] (1) The slurry of the coating in this example, the raw material composition of the base material is 22 wt% of nano-alumina, 53 wt% of quartz micropowder (with a particle size of 800-1200 mesh), 15 wt% of MgO, and 3 wt% of zirconium silicate %, spodumene 7 wt%; the binder solution is a PVB solution with a concentration of 0.9 wt%.

[0037] (2) In step (3) of the preparation method of this embodiment, the coating thickness of the coating is 0.15 mm.

[0038] (3) In step (4) of the preparation method of this embodiment, the heating rate is 4°C / min, the holding time is 30min, and the calcination temperature is 1320°C.

Embodiment 3

[0040] The present embodiment is a kind of high-performance daily-use ceramics for dishwashers and a preparation method thereof, which differs from Embodiment 1 in that:

[0041] (1) The raw materials of the daily-use ceramic body in this example are 25 wt% of Jiepai soil, 25 wt% of quartz, 25 wt% of Datong soil, and 25 wt% of feldspar.

[0042] (2) The slurry of the coating in this example, the raw material composition of the base material is 17 wt% of nano-alumina, 52 wt% of quartz micropowder (with a particle size of 800-1200 mesh), 11 wt% of MgO, and 8 wt% of zirconium silicate %, spodumene 12 wt%; the binder solution is a PVB solution with a concentration of 0.9 wt%.

[0043] (3) In step (1) of the preparation method of this embodiment, the bisque firing temperature is 800°C.

[0044] (4) In step (3) of the preparation method of this embodiment, the coating thickness of the coating is 0.25 mm.

[0045] (5) The high-performance daily-use ceramics for dishwashers prepared...

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Abstract

The invention discloses a high-performance daily-use ceramic for a dishwashing machine. The daily-use ceramic is composed of a daily-use ceramic green body and a coating layer completely covering thesurface of the ceramic green body; slurry of the coating layer is composed of a base material and a binder solution according to the weight ratio of the base material to the binder solution of 1:(1.1-1.5); the base material comprises the following raw materials: 10-25 wt% of nano aluminum oxide, 30-55 wt% of quartz micropowder, 10-30 wt% of MgO, 2-10 wt% of zirconium silicate, and 4-12 wt% of spodumene; and the binder solution is one or a combination of CMC, PVA, and PVB solutions, and the concentration of the binder solution is 0.5-2 wt%. In addition, the invention discloses a preparation method of the high-performance daily-use ceramic for the dishwashing machine. According to the method, through formula design, the coating material is enhanced by dual effects of pre-stress applied to the surface of daily-use ceramic green body and dispersion strengthening, so that the strength, thermal shock resistance and alkali resistance of the daily-use ceramic are significantly improved, and the service life of the daily-use ceramic is significantly improved.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a high-performance household ceramic for dishwashers and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, dishwashers have become one of the important components of modern kitchen appliances. It increases the degree of cleanliness and sanitation, and is deeply loved by people. However, dishwashers not only have high requirements on the strength and thermal stability of daily-use ceramics, but also the special alkaline washing liquid for dishwashers is extremely corrosive to daily-use ceramics, thus seriously shortening the service life of daily-use ceramics . [0003] There are thousands of daily-use ceramics manufacturers in my country, with an output value exceeding 100 billion yuan, occupying an important position in the national economy. As we all know, prestressed reinforced design is widely used in...

Claims

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Application Information

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IPC IPC(8): C04B33/16C04B33/13C04B33/24C04B41/87
CPCC04B33/16C04B33/131C04B33/24C04B41/87C04B41/009C04B41/5035C04B2235/3463C04B2235/6562C04B2235/6567C04B2235/96C04B2235/9692C04B2235/9607C04B41/4539Y02B40/00
Inventor 孙熠包亦望李月明沈宗洋
Owner JINGDEZHEN CERAMIC INSTITUTE
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