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A low sintering temperature glass-ceramic bond and its preparation method

A low sintering temperature, glass-ceramic technology, applied in the manufacture of tools, metal processing equipment, abrasives, etc., can solve the problems of diamond grinding wheel performance impact, reduce strength and refractoriness, glass-ceramic structure impact, etc., to achieve the sintering process Easy, lower sintering temperature, high roundness effect

Active Publication Date: 2018-10-16
郑州锐力超硬材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods introduce non-glass-based materials into the finished glass-ceramic products, which often have a certain impact on the structure of the sintered glass-ceramic, eventually reducing its strength and refractoriness, and affecting the performance of the diamond grinding wheel.

Method used

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  • A low sintering temperature glass-ceramic bond and its preparation method
  • A low sintering temperature glass-ceramic bond and its preparation method
  • A low sintering temperature glass-ceramic bond and its preparation method

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Embodiment 1

[0034] The low sintering temperature glass-ceramic bonding agent of the present embodiment is made up of the following mass percent components: SiO 2 50%, B 2 o 3 3%, Al 2 o 3 25%, Na 2 O 2%, MgO 5%, Li 2 O 5%, ZrO 2 5%, TiO 2 1%, La 2 o 3 3%, Sb 2 o 3 1%.

[0035] The preparation method of the low sintering temperature glass-ceramics bonding agent of the present embodiment comprises the following steps:

[0036] 1) After mixing the raw materials according to the above formula, melt them at 1200°C, water quench, dry and grind to obtain glass powder;

[0037]2) Sintering and crystallizing the glass powder obtained in step 1) at 830° C., crushing the obtained glass-ceramic and passing it through a 100-mesh sieve to obtain a glass-ceramic powder with a particle size below 150 μm;

[0038] 3) Put 10 g of the obtained glass-ceramic powder in the ball milling tank of a high-energy ball milling instrument, add 100 g of zirconia balls with a diameter of 8 mm (mass r...

Embodiment 2

[0043] The low sintering temperature glass-ceramic bonding agent of the present embodiment is made up of the following mass percent components: SiO 2 55%, B 2 o 3 10%, Al 2 o 3 10%, Na 2 O 5%, MgO 7%, Li 2 O 8%, ZrO 2 1%, TiO 2 2%, La 2 o 3 1%, Sb 2 o 3 1%.

[0044] The preparation method of the low sintering temperature glass-ceramics bonding agent of the present embodiment comprises the following steps:

[0045] 1) After mixing the raw materials according to the above formula, melt them at 1300°C, water quench, dry and grind to obtain glass powder;

[0046] 2) Sinter and crystallize the glass powder obtained in step 1) at 840°C, crush the obtained glass-ceramic and pass through a 100-mesh sieve to obtain a glass-ceramic powder with a particle size below 150 μm; 10 g of the obtained glass-ceramic Put the glass powder in the ball mill jar of a high-energy ball mill, add 100g of zirconia balls with a diameter of 8mm (mass ratio of ball to material: 10:1), and...

Embodiment 3

[0050] The low sintering temperature glass-ceramic bonding agent of the present embodiment is made up of the following mass percent components: SiO 2 70%, B 2 o 3 3%, Al 2 o 3 15%, Na 2 O 0.5%, MgO 2%, Li 2 O 1%, ZrO 2 2.5%, TiO 2 1%, La 2 o 3 2%, Sb 2 o 3 3%.

[0051] The preparation method of the low sintering temperature glass-ceramics bonding agent of the present embodiment comprises the following steps:

[0052] 1) After mixing the raw materials according to the above formula, melt them at 1500°C, water quench, dry and grind to obtain glass powder;

[0053] 2) Sinter and crystallize the glass powder obtained in step 1) at 850°C, crush the obtained glass-ceramic and pass through a 100-mesh sieve to obtain a glass-ceramic powder with a particle size below 150 μm; 10 g of the obtained glass-ceramic Put the glass powder in the ball mill jar of a high-energy ball mill, add 100g of zirconia balls with a diameter of 8mm (mass ratio of ball to material: 10:1), a...

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Abstract

The invention discloses a low-sintering-temperature microcrystalline glass binding agent and a preparation method thereof. The microcrystalline glass binding agent is prepared from the following components by mass percent: 50-70% of SiO2, 3-10% of B2O3, 10-25% of Al2O3, 0.5-5% of Na2O, 2-8% of MgO, 1-10% of Li2O, 1-5% of ZrO2, 1-5% of TiO2, 1-3% of La2O3 and 1-3% of Sb2O3; the preparation method comprises the step of carrying out high energy ball milling on the prepared microcrystalline glass powder. The obtained microcrystalline glass binding agent has the particle size of 80-300nm and the crystallization temperature of about 780 DEG C; when the microcrystalline glass binding agent is used for preparing a diamond grinding wheel, the sintering temperature is only 780 DEG C; the low-sintering-temperature microcrystalline glass binding agent greatly reduces the oxidation degree of diamond in the air so as to be capable of well enabling the structure and grinding performance of the diamond not to be damaged.

Description

technical field [0001] The invention belongs to the technical field of glass-ceramic bond diamond grinding wheel manufacturing technology, specifically relates to a low-sintering temperature glass-ceramic bond, and also relates to a preparation method of the low-sintering temperature glass-ceramic bond. Background technique [0002] Diamond is the hardest substance known in the world. Grinding tools and grinding wheels made of diamond have a good grinding effect on cemented carbide and superhard materials except iron, and have higher grinding efficiency than traditional silicon carbide grinding wheels. High, high grinding precision, long service life and other advantages. Due to the small size of synthetic diamond particles, in order to use diamond for high-efficiency and high-precision processing, people use bonding agents to consolidate diamond abrasive particles into molds with certain specifications and shapes, which are installed on various grinding machines to achieve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03B32/02B24D3/16B24D3/34
CPCB24D3/16B24D3/342C03B32/02C03C10/0027C03C10/0045
Inventor 王海龙赵仕敬张锐李剑赵笑统马尧邵刚范冰冰陈德良许红亮卢红霞
Owner 郑州锐力超硬材料有限公司