Volcanic rock glass welding and casting process

Abstract

The invention provides a vesuvianite glass welding casting process, which relates to the field of glass casting processes, and comprises the following steps: firing high borosilicate glass and vesuvianite at a constant temperature of 500 DEG C by using a fire gun of which the temperature is 1300 DEG C formed by combining oxygen and coal gas or firing or casting by using an electric kiln, and taking powder of crushed high borosilicate glass and crushed vesuvianite as welding auxiliary raw materials in the welding process; and after forming, putting the product into a low-temperature electric kiln at 500 DEG C all the time, stably cooling to the highest temperature of 30 DEG C for six hours, discharging from the kiln, standing in an environment at 20 DEG C or above for one hour, and checking whether the stress of the product is stably removed or not. The process has the beneficial effects that the heat stress generated by high temperature in the product can be released to the greatest extent through the six-hour stable cooling process from 500 DEG C to 30 DEG C and the subsequent stress inspection link, the probability of cracking, deformation and other defects of the product is remarkably reduced, and the yield and long-term use performance of the product are guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of glass casting processes, and particularly to a welding and casting process for volcanic stone glass. Background Art

[0002] With the pursuit of the aesthetic and unique properties of materials by people, products made by fusing volcanic stone and glass have gradually attracted attention in the fields of decoration, art, and some special industrial applications. However, due to the large differences in the material properties of volcanic stone and glass, there are many challenges in the fusion welding and casting of the two, such as how to ensure that the two can be fully fused during the high-temperature firing process and avoid problems such as cracking and uneven internal stress. Traditional conventional glass processing techniques are difficult to directly apply to the processing of this special composite material. Currently, there is a lack of effective process methods specifically for the welding and casting of glass and volcanic stone in the market, which restricts the quality improvement and wider application of such unique products. Therefore, it is necessary to develop a reliable and efficient welding and casting process for volcanic stone glass. Summary of the Invention

[0003] The purpose of the present invention is to provide a welding and casting process for volcanic stone glass, which improves the quality and wider application of such unique products.

[0004] In order to achieve the above invention purpose, the technical solution adopted by the present invention is as follows:

[0005] A welding and casting process for volcanic stone glass, characterized by comprising the following steps: Step 1, select volcanic stone and high-borosilicate glass, and clean the selected volcanic stone and high-borosilicate glass;

[0006] Step 2, crush the cleaned volcanic stone and high-borosilicate glass to facilitate mixing, and place the mixed volcanic stone and high-borosilicate glass in a container;

[0007] Step 3, perform firing and casting operations by using a torch combined with oxygen and gas or by placing a mold filled with raw materials in an electric kiln, and raise the ambient temperature to 500 °C and maintain a constant temperature state;

[0008] Step 4, raise the temperature to 1300 °C by using a torch or an electric kiln. In this high-temperature environment, gradually melt the high-borosilicate glass, and at the same time, some components in the volcanic stone can also better fuse with the high-borosilicate glass. During the welding and casting process, use pre-crushed high-borosilicate glass powder and crushed volcanic stone powder as welding auxiliary raw materials;

[0009] Step 5, when the product is completed in welding and casting at 1300 °C, keep the ambient temperature of the product at 500 °C, transfer it to a low-temperature electric kiln, start the cooling program, and make the temperature in the electric kiln smoothly drop from 500 °C to an environment with a maximum temperature of 30 °C within six hours;

[0010] Step 6: After the product is taken out of the kiln, it is left to stand in an environment above 20°C for one hour to check whether the stress of the product is stably removed.

[0011] As an improvement, the particle size of the fragments after the volcanic stone and borosilicate glass are broken is controlled within the range of 2-5 mm, which is convenient for better mixing of the volcanic stone and borosilicate glass.

[0012] As an improvement, in Step 3, the environmental temperature is raised to 500°C and maintained at a constant temperature for 30-60 minutes, so that the borosilicate glass and the volcanic stone raw materials are initially heated evenly in a relatively mild temperature environment, reducing the risk of cracking caused by rapid temperature rise in the subsequent process.

[0013] The beneficial effects of the present invention are as follows: In the six-hour steady cooling process of the present process from 500°C to 30°C and the subsequent stress inspection link, the thermal stress generated inside the product due to high temperature can be released to the greatest extent, significantly reducing the probability of defects such as cracking and deformation of the product, ensuring the yield rate and long-term service performance of the product, and being able to meet the different requirements for special materials in multiple fields such as tableware, tea sets, special furniture, house decoration, lamps, handicrafts, mixing of ceramic raw materials, and automotive parts, electrical parts, mechanical parts, etc., having a broad market application prospect. Description of the Drawings

[0014] Figure 1 It is a process framework diagram of a volcanic stone glass welding and casting process of the present invention. Detailed Embodiments

[0015] In order to make the content of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0016] Such as Figure 1As shown in the figure, a volcanic stone glass welding and casting process includes the following steps: Step 1: Select volcanic stone and high borosilicate glass, and clean the selected volcanic stone and high borosilicate glass; Step 2: Crush the cleaned volcanic stone and high borosilicate glass to facilitate mixing, and place the mixed volcanic stone and high borosilicate glass in a container; Step 3: Use a torch combined with oxygen and gas for firing or put the mold filled with raw materials into an electric kiln for firing and casting operations, raise the ambient temperature to 500°C and maintain a constant temperature state; Step 4: Raise the temperature to 1300°C through the torch or electric kiln. In this high-temperature environment, the high borosilicate glass gradually melts, and at the same time, some components in the volcanic stone can better fuse with the high borosilicate glass. According to the shape and size of the required tableware, customize a graphite mold. The inner wall of the mold needs to be polished to make its surface smooth, which is convenient for the product to demold and ensure the surface quality of the tableware. Put the mixed raw materials into the corresponding mold. During the welding and casting process, use the pre-crushed high borosilicate glass powder and crushed volcanic stone powder as welding auxiliary raw materials; Step 5: When the product is completed with welding and casting at 1300°C, keep the ambient temperature where the product is located at 500°C, transfer it to a low-temperature electric kiln, and start the cooling program to make the temperature in the electric kiln drop smoothly from 500°C to an environment with a maximum temperature of 30°C within six hours; Step 6: After the product comes out of the kiln, place it in an environment above 20°C and let it stand for one hour to check whether the stress of the product is stably removed.

[0017] Example Two

[0018] A volcanic stone glass welding and casting process, comprising the following steps: Step 1, select high borosilicate glass raw materials with rich colors and volcanic stone raw materials with unique textures and colors, and clean the selected volcanic stones and high borosilicate glass; Step 2, crush the cleaned volcanic stones and high borosilicate glass to facilitate mixing, and place the mixed volcanic stones and high borosilicate glass in a container; Step 3, use a torch combined with oxygen and gas for firing or put the mold containing the raw materials into an electric kiln for firing and casting operations, raise the ambient temperature to 500°C and maintain a constant temperature state; Step 4, raise the temperature to 1300°C through the torch or electric kiln. In this high-temperature environment, the high borosilicate glass gradually melts, and at the same time, some components in the volcanic stone can better fuse with the high borosilicate glass. According to the complex shape of the handicraft design, use 3D printing technology to make a high-temperature-resistant silicon carbide mold to ensure that the mold can accurately restore the design shape. Put the mixed raw materials into the corresponding mold. During the welding and casting process, use the pre-crushed high borosilicate glass powder and crushed volcanic stone powder as welding auxiliary raw materials; Step 5, when the product is completed with welding and casting at 1300°C, keep the ambient temperature of the product at 500°C, transfer it to a low-temperature electric kiln, and start the cooling program to make the temperature in the electric kiln drop smoothly from 500°C to an environment with a maximum temperature of 30°C within six hours; Step 6, after the product comes out of the kiln, place it in an environment above 20°C and let it stand for one hour to check whether the stress of the product is stably removed.

[0019] Example Three

[0020] A volcanic stone glass welding and casting process includes the following steps: Step 1: Select high borosilicate glass raw materials and wear-resistant volcanic stone raw materials, and clean the selected volcanic stone and high borosilicate glass; Step 2: Crush the cleaned volcanic stone and high borosilicate glass to facilitate mixing, and place the mixed volcanic stone and high borosilicate glass in a container; Step 3: Use a torch with a combination of oxygen and gas for firing or put the mold containing the raw materials into an electric kiln for firing and casting operations, raise the ambient temperature to 500 °C and maintain a constant temperature state; Step 4: Raise the temperature to 1300 °C through the torch or electric kiln. In this high-temperature environment, gradually melt the high borosilicate glass, and at the same time, some components in the volcanic stone can also better fuse with the high borosilicate glass. Make a high-temperature-resistant silicon carbide mold according to the shape of the auto parts to ensure that the mold can accurately restore the designed shape. Put the mixed raw materials into the corresponding mold. During the welding and casting process, use the pre-crushed high borosilicate glass powder and crushed volcanic stone powder as welding auxiliary raw materials; Step 5: When the product is completed in welding and casting at 1300 °C, keep the ambient temperature of the product at 500 °C, transfer it to a low-temperature electric kiln, start the cooling program, and make the temperature in the electric kiln drop smoothly from 500 °C to an environment with a maximum temperature of 30 °C within six hours; Step 6: After the product comes out of the kiln, place it in an environment above 20 °C and let it stand for one hour to check whether the stress of the product is stably removed.

[0021] In the actual use process of the present invention, Step 1: Select volcanic stone and high borosilicate glass, and clean the selected volcanic stone and high borosilicate glass; Step 2: Crush the cleaned volcanic stone and high borosilicate glass. After crushing, the particle size of the fragments of the volcanic stone and high borosilicate glass is controlled within the range of 2-5 mm to facilitate better mixing of the volcanic stone and high borosilicate glass, and place the mixed volcanic stone and high borosilicate glass in a container; Step 3: Use a torch with a combination of oxygen and gas for firing or put the mold containing the raw materials into an electric kiln for firing and casting operations, raise the ambient temperature to 500 °C and maintain a constant temperature state. This process lasts for 30-60 minutes to make the high borosilicate glass and volcanic stone raw materials be initially heated evenly in a relatively mild temperature environment and reduce the risk of cracking caused by rapid temperature rise in the subsequent process; Step 4: Raise the temperature to 1300 °C through the torch or electric kiln. In this high-temperature environment, gradually melt the high borosilicate glass, and at the same time, some components in the volcanic stone can also better fuse with the high borosilicate glass. During the welding and casting process, use the pre-crushed high borosilicate glass powder and crushed volcanic stone powder as welding auxiliary raw materials; Step 5: When the product is completed in welding and casting at 1300 °C, keep the ambient temperature of the product at 500 °C, transfer it to a low-temperature electric kiln, start the cooling program, and make the temperature in the electric kiln drop smoothly from 500 °C to an environment with a maximum temperature of 30 °C within six hours; Step 6: After the product comes out of the kiln, place it in an environment above 20 °C and let it stand for one hour to check whether the stress of the product is stably removed.

[0022] The above are only the preferred embodiments of the present invention patent and are not intended to limit the present invention patent. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. A volcanic stone glass welding and casting process, characterized in that, It includes the following steps: Step 1: Select volcanic stones and borosilicate glass, and clean the selected volcanic stones and borosilicate glass; Step 2: Crush the cleaned volcanic stones and borosilicate glass to facilitate mixing, and place the mixed volcanic stones and borosilicate glass in a container; Step 3: Perform firing using a blowtorch combined with oxygen and gas or put the mold containing the raw materials into an electric kiln for firing and casting operations, raise the ambient temperature to 500 °C and maintain a constant temperature state; Step 4: Raise the temperature to 1300 °C through a blowtorch or an electric kiln. In this high-temperature environment, gradually melt the borosilicate glass, and at the same time, some components in the volcanic stones can better fuse with the borosilicate glass. During the welding and casting process, use the pre-crushed borosilicate glass powder and the powder of crushed volcanic stones as welding auxiliary raw materials; Step 5: When the product is completed with welding and casting at 1300 °C, keep the ambient temperature where the product is located at 500 °C, transfer it to a low-temperature electric kiln, and start the cooling program to make the temperature in the electric kiln smoothly drop from 500 °C to an environment with a maximum temperature of 30 °C within six hours; Step 6: After the product is taken out of the kiln, place it in an environment above 20 °C and let it stand for one hour to check whether the stress of the product is stably removed.

2. The volcanic rock glass welding and casting process according to claim 1, characterized in that, The particle size of the fragments of the volcanic stones and borosilicate glass after crushing is controlled within the range of 2 - 5 mm.

3. A volcanic stone glass welding and casting process according to claim 1, characterized in that, In Step 3, the ambient temperature is raised to 500 °C and maintained at a constant temperature state, and this process lasts for 30 - 60 minutes.

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