How is foam glass made?
Foam glass is a high-performance building material, which has many functions such as heat preservation, heat insulation, sound absorption, fire prevention, etc. It is widely used in the fields of construction, chemical industry, petroleum, etc. This article will introduce the preparation method of foam glass, and mention the contribution of Hebei Lanxuan Energy saving Building Materials Co., Ltd.
Preparation method of foam glass
The preparation of foam glass mainly includes the steps of raw material treatment, mixing, foaming, molding and annealing. The following are common preparation processes:
1. Raw material selection and processing
The main raw materials of foam glass include waste glass, diatomite, foaming agent (such as silicon carbide and graphite) and foam stabilizer (such as trisodium phosphate). Waste glass needs to undergo steps such as cleaning, crushing, and ball milling to produce glass powder with a particle size of less than 300 microns.
2. Mixing and ingredients
Mix glass powder evenly with foaming agent, stabilizer, etc. in a certain proportion. For example, glass powder accounts for 68% -74%, diatomaceous earth accounts for 18% -28%, and foaming agent accounts for 0.5% -3%.
3. Foaming and Forming
After the mixture is loaded into the mold, it is sent into the kiln for high-temperature foaming. The foaming temperature is usually 800 ℃ -1000 ℃, and the insulation time is 30-60 minutes. During the foaming process, the foaming agent decomposes to produce gas, forming a uniform pore structure.
4. Cooling and Annealing
The foamed sample needs to be rapidly cooled to 450 ℃ -500 ℃, and then annealed to eliminate internal stress and improve the strength and stability of the material.
Contribution of Hebei Lanxuan Energy saving Building Materials Co., Ltd
Hebei Lanxuan Energy saving Building Materials Co., Ltd. is an enterprise focusing on the research, development and production of energy saving building materials, and has rich experience in the field of foam glass. The company adopts the advanced "two-step" firing process, and produces foam glass products with low density, high strength and low thermal conductivity by precisely controlling the foaming temperature and holding time.
In addition, Lanxuan Company is committed to utilizing waste glass resources to promote the development of green building materials. The foam glass produced by the company not only has excellent thermal insulation performance, but also has sound absorption, fire prevention, waterproof and other functions. It is widely used in building exterior wall, roof insulation, industrial equipment insulation and other fields.
conclusion
The preparation process of foam glass is complex but efficient. Its excellent properties make it an important material in modern architecture and industry. Hebei Lanxuan Energy saving Building Materials Co., Ltd. has made important contributions to the development of foam glass industry and promoted the popularization and application of green building materials through technological innovation and resource reuse.
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