High-strength wear-resistant engineering microcrystalline glass prepared by using granite waste materials and preparation method thereof

A technology of glass-ceramic and granite, which is applied in the field of high-strength and wear-resistant engineering glass-ceramic and its preparation, can solve problems such as difficulty in adapting to the working environment, and achieve the effects of small grain size, simple production process and excellent physical and mechanical properties.

Inactive Publication Date: 2013-02-27
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, marble, cast stone, cast iron, manganese steel and other products currently on the market are difficult to adapt to the above-mentioned working environment in practical applications due to various congenital defects of their own materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Crush granite waste and various mineral auxiliary materials, and then pass through a 40-mesh sieve, accurately weigh 21.0-25.0 kg of granite waste, 84.0-88.0 kg of quartz sand or silica powder (SiO 2 ), 12.0-14.0 kg of soda ash (Na 2 CO 3 ), 20.0-25.0 kg of limestone or calcite (CaCO 3 ), 0-3.0 kg of zinc oxide (ZnO), 16.0-19.0 kg of potassium carbonate (K 2 CO 3 ), 15.0-18.0 kg fluorite (CaF 2 ), 3.0-5.0 kg of sodium nitrate (NaNO 3 ), 1.0-3.0 kg ammonium nitrate (NH 4 NO 3 ), 2.5-3.5 kg of sodium sulfate (Na 2 SO 4 ). Fully mix the granite waste, auxiliary raw materials and flux clarifying agent, and add 4.0% water of the total weight of the raw materials during the mixing process, and stir for 10 minutes to mix evenly to form the basic glass batch.

[0039] The basic glass batch material is sent into the melting furnace through the conveyor belt or the unit tank, the melting temperature is controlled at 1460-1490 ° C for 2.0-6.0 hours, homogenized and clari...

Embodiment 2

[0044] Crush the granite waste and various mineral auxiliary materials, then pass through a 40-mesh sieve, accurately weigh 45.0-55.0 kg of granite waste, 18.0-26.0 kg of quartz sand or silica powder (SiO 2 ), 15.0-20.0 kg of soda ash (Na 2 CO 3 ), 20.0-26.0 kg of limestone or calcite (CaCO 3 ), 1.0-4.0 kg of zinc oxide (ZnO), 2.0-4.0 kg of barium carbonate (BaCO 3 ), 0-3.0 kg fluorite (CaF 2 ), 0.5-2.0 kg magnesium oxide (MgO), 1.0-3.0 kg ammonium nitrate (NH 4 NO 3 ). Fully mix the granite waste, auxiliary raw materials and flux clarifying agent, add 3.0-4.0% water of the total weight of the raw materials, stir for 10-15min and mix evenly to form the basic glass batch.

[0045] The basic glass batch material is sent into the melting furnace through the conveyor belt or the unit tank, the melting temperature is controlled at 1470-1530 ° C for 2.0-6.0 hours, homogenized and clarified to make qualified glass liquid; the clarified glass liquid flows through the liquid The...

Embodiment 3

[0050] Crush the granite waste and various mineral auxiliary materials, then pass through a 40-mesh sieve, accurately weigh 36.0-41.0 kg of granite waste, 29.0-33.0 kg of quartz sand or silica powder (SiO 2 ), 7.0-9.0 kg of soda ash (Na 2 CO 3 ), 27.0-31.0 kg of limestone or calcite (CaCO 3 ), 1.0-6.0 kg of zinc oxide (ZnO), 1.0-5.0 kg of barium carbonate (BaCO 3 ), 2.0-4.0 kg potassium carbonate (K 2 CO 3 ), 1.0-2.0 kg ammonium nitrate (NH 4 NO 3 ). Fully mix the granite waste, auxiliary raw materials and flux clarifying agent, add 3.0-4.0% water of the total weight of the raw materials, stir for 10-15min and mix evenly to form the basic glass batch.

[0051] The basic glass batch material is sent into the melting furnace through the conveyor belt or the unit tank, the melting temperature is controlled at 1470-1530 ° C for 2.0-6.0 hours, homogenized and clarified to make qualified glass liquid; the clarified glass liquid flows through the liquid The hole enters the wo...

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Abstract

The invention discloses high-strength wear-resistant engineering microcrystalline glass prepared by using granite waste materials and a preparation method thereof. The microcrystalline glass disclosed herein comprises 10.0-55.0wt% of granite waste materials as the main raw material, and comprises SiO2, CaF2, CaCO3, ZnO, K2CO3, etc. as the auxiliary raw materials. The preparation method comprises the following steps: crushing the granite waste materials, uniformly mixing the crushed granite waste materials with other raw materials in a mixer to obtain a base mixed batch, using a tank furnace to carry out high temperature melting on the base mixed batch to obtain qualified liquid glass, carrying out calendaring, casting or water quenching on the liquid glass to form a base glass plate (or pellets), and carrying out crystallization heat treatment on the base glass plate (or pellets) to obtain the microcrystalline glass. The microcrystalline glass has a density of 2.5-2.8g/cm<3>, a flexural strength of 30.0-103.5MPa, a compressive strength of 70.0-903.0MPa, a Moh's hardness of 5-8, and a wear resistance of 0.063-0.15g/cm<2>, has the advantages of high strength, good toughness, strong wear resistance and corrosion resistance, and excellent cutting machinability, and an be widely applied in the fields of chemical industry, metallurgy, building decoration, petroleum, etc.

Description

technical field [0001] The invention relates to a glass-ceramic, in particular to a high-strength wear-resistant engineering glass-ceramic prepared from granite waste and a preparation method thereof. Background technique [0002] Granite is one of the most widely distributed and abundant rocks. As the demand for granite continues to increase, a large number of waste rocks, waste stone edges, waste stone powder, and waste mud also follow, which not only causes serious pollution to the environment, but is actually a resource waste. In recent years, people have paid more and more attention to the use of circular economy to develop the stone industry, and began to pay attention to the comprehensive utilization of granite waste, which provides a broad application space for the resource utilization of granite waste. [0003] At present, the application of granite waste in building bricks is mainly as raw materials for the production of ordinary fired bricks, ceramic bricks, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/04
CPCC03C10/00C03C1/002
Inventor 曹建尉王志公旭中
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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