TW202235833A - Method for finding the properest kilning temperature of ceramics by laser sintering - Google Patents

Abstract

The present invention related to a method for finding the properest kilning temperature of ceramics by laser sintering. Its procedure including allocating the ingredients formula of the ceramics first. Next, using laser to illuminate the ingredients with different light point moving speed to find the highest speed which can sinter the ingredients. Afterwards, calculating a energy value by the acquired speed. Then matching the energy value with a relation curve of the light point moving speed and the energy value to find the necessary real kilning temperature of the ingredients.

Description

Method of Measuring the Optimum Kiln Firing Temperature of Ceramics Using Laser Firing

The invention relates to a method for measuring the optimum kiln firing temperature of ceramics by using laser firing, and is an industrial manufacturing technique.

When making ceramic works, the ceramic raw materials of different formulas may need to be kilned several times before the suitable kiln temperature can be determined. If the kiln temperature is not suitable, the glaze may melt or not be sintered, and Need to adjust the temperature next time;

However, in addition to consuming a lot of ceramic raw materials and heating fuel during kiln firing, each kiln firing also takes at least ten hours or more. If it fails, it must be cleaned up, so trial and error with actual kiln firing is quite uneconomical and wasteful. .

In view of the above shortcomings, the inventor believes that it is necessary to correct it. Based on his many years of experience in related technologies and product design and manufacturing, and adhering to the excellent design concept, he researched and created the above shortcomings. After continuous efforts, he finally achieved Introduced the method of measuring the optimum kiln firing temperature of ceramics by using laser firing in the present invention, hoping to correct the product structure and improve the excellent efficacy of the product.

The main purpose of the present invention for measuring the optimum kiln firing temperature of ceramics by laser sintering is to provide a method that can calculate the actual kiln firing temperature required by ceramics by laser sintering.

In order to achieve the purpose disclosed above, the method for measuring the optimum kiln firing temperature of ceramics by using laser firing in the present invention includes the following steps:

Raw material blending, that is, the blending of ingredients and raw materials to be made into ceramic products;

Laser sintering, the prepared raw materials are irradiated with laser light generated by a laser device, and the raw materials are irradiated with different light spot moving speeds in sequence, and the state of the raw materials is observed after irradiation to find out the fastest way to sinter the raw materials. Speed of spot movement;

The comparison program calculates an energy value based on the obtained fastest light spot moving speed, and then compares the energy value with a light spot moving speed-energy value curve to obtain the actual kiln burning time of the raw material. desired temperature.

Compared with the past, which required a large amount of cost to carry out actual kiln firing trial and error, to find out the suitable kiln temperature of raw materials with different formulas, the present invention uses laser sintering and matching comparison method to obtain the required kiln temperature for raw materials. The possible actual kiln firing temperature, and then achieve the effect of cost saving, which has great potential to help the future development of ceramic production, and it can be seen that the progress of the present invention.

In the preceding experiment for completing the method of the present invention, a laser device is used to carry out sintering experiments on a variety of ceramic raw materials with known required kiln firing temperatures. The laser light power used is 20W, and the light spot radius is 0.2mm. Starting from the light spot moving speed of 1mm/sec, the raw material is irradiated successively by increasing the speed of 1mm/sec each time, and then observing the raw material to find out the fastest light spot moving speed that can cause the sintering phenomenon of the raw material, and these experimental raw materials The required kiln firing temperatures are respectively 1240-1280°C for china clay, 1210-1260°C for pottery clay, 1100-1245°C for transparent glaze, and 600-800°C for kiln firing temperature cones, [please refer to the first and second pictures] For one of the experimental results, please refer to the first and second pictures, which are the laser sintering test results of the transparent glaze. It can be seen that the fastest light spot moving speed that can produce wave patterns on the transparent glaze surface is 14mm/sec. Because the light spot moves too fast, it cannot provide enough energy to irradiate to cause sintering;

After knowing the moving speed of the fastest light spot, calculate its energy value. The formula for calculating the energy value is as follows:

Where W is the laser power (W), r is the spot radius (mm), V is the moving speed of the spot (mm/sec), and after completing the experiment and calculation of the above raw materials, [please also refer to the third figure ] A light spot moving speed-energy value curve can be drawn with the moving speed of the light spot on the horizontal axis and the energy value on the vertical axis, as shown in the third figure, and the vertical axis values of the coordinate points of various raw materials such as porcelain clay also represent The minimum kiln firing temperature required by itself, so before kilning a raw material with a new formula, laser sintering can be performed on the raw material to find out the fastest light spot moving speed that can produce sintering phenomenon, and then use this The energy value is calculated by the fastest moving speed of the light spot, and then the coordinate value of the raw material on the above curve is found by the energy value, and the actual kiln firing temperature required by the raw material can be obtained.

[Please refer to the fourth picture] Therefore, the present invention uses laser firing to measure the optimum firing temperature of ceramics. The steps include:

Raw material blending (1), that is, the blending of ingredients and raw materials to be made into finished ceramic products;

Laser sintering (2): The prepared raw materials are irradiated with laser light generated by a laser device, and the raw materials are irradiated with different moving speeds of light spots in sequence, and the state of the raw materials is observed after irradiation to find out the materials that can be sintered. The fastest light spot moving speed;

Comparing procedure (3), after calculating the energy value based on the obtained fastest light spot moving speed, and then comparing the energy value with a light spot moving speed-energy value curve, it can be obtained that the raw material is actually used in the kiln. The temperature required for burning.

Raw material preparation (1) is the routine work of ordinary ceramic workers when they want to make ceramic works, so I won’t repeat them here;

In the laser sintering (2) step, the laser light power generated by the laser device here is 20W, the light spot diameter is 0.2mm, and the moving speed of the light spot starts from 1mm/sec, and the speed is increased by 1mm/sec each time. To irradiate the raw material successively to find out the fastest light spot moving speed of the sinterable raw material.

The present invention first sinters with laser to find out the fastest moving speed of the light spot that can sinter the raw material, and then calculates the energy value and compares the light spot moving speed-energy value curve, then the raw material can be obtained. The actual kiln firing temperature required, instead of the need to go through multiple trial and error kiln firing to find out the appropriate kiln firing temperature, which can save a lot of manpower, material and time costs.

What is described above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. That is to say, all equivalent changes and modifications made according to the scope of the patent application should still fall within the scope covered by this creation patent.

To sum up, if the invention is novel and progressive, and the invention has not been published in any publication, it shall comply with the provisions of Article 22 of the Patent Law.

1: Raw material deployment 2: Laser sintering 3: Comparison program

The first picture is the experimental result picture of the transparent glaze in the laser sintering experiment. The second picture is an enlarged picture of the group whose moving speed of the light spot is 14mm/sec in the first picture. The third figure is a schematic diagram of the light spot moving speed-energy value curve. Figure 4 is a flow chart of the steps of the method of measuring the optimum firing temperature of ceramics by using laser firing in the present invention.

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1: Raw material deployment

2:Laser sintering

3: Comparison program

Claims (2)

A method for measuring the optimum kiln firing temperature of ceramics by using laser firing, the steps of which include: Allocation of raw materials, the allocation of raw materials to be made into ceramic products; Laser sintering, the prepared raw materials are irradiated with laser light generated by a laser device, and the raw materials are irradiated with different light spot moving speeds in sequence, and the state of the raw materials is observed after irradiation to find out the fastest way to sinter the raw materials. Speed of spot movement; The comparison program calculates an energy value based on the obtained fastest light spot moving speed, and then compares the energy value with a light spot moving speed-energy value curve to obtain the actual kiln burning time of the raw material. the desired temperature. The method of using laser sintering to measure the optimum kiln firing temperature of ceramics as described in claim 1, wherein, in the laser sintering step, the laser light power is 20W, the light spot diameter is 0.2mm, and the temperature is increased from 1mm/sec Starting from the moving speed of the light spot, the raw material is irradiated successively by increasing the speed by 1mm/sec each time to find out the fastest moving speed of the light spot that can sinter the raw material.

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