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Nepheline glass ceramic and metal powder composite material and preparation method thereof

A technology of glass-ceramic powder and glass-ceramic, applied in the field of new materials, can solve problems such as the inability to realize the combination of glass and metal, and achieve the effects of improving mechanical properties, reducing environmental damage, and reducing overproduction

Active Publication Date: 2013-01-02
赵凤宇
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a nepheline glass-ceramic and metal powder composite material and its preparation method, to solve the problem that the combination of glass and metal cannot be realized in the prior art

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  • Nepheline glass ceramic and metal powder composite material and preparation method thereof

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preparation example Construction

[0026] The preparation method of nepheline glass-ceramic and metal powder composite material of the present invention, concrete steps are as follows:

[0027] (1) Use a ball mill or other grinding equipment to grind nepheline glass-ceramic water-quenched granules into 100-300 mesh fine powder, and then mix 100-500 mesh metal powder and whiskers with glass-ceramic powder for 2- 3 hours;

[0028] (2) Cold-press the mixed powder uniformly mixed in step (1) with a 100-500-ton press, determine according to the specifications of the green body, pressure: 120-150MPa, and mold into a rectangular blank;

[0029] (3) Put the blank in step (2) into a roller kiln or bell crystallization kiln for sintering and crystallization at a temperature of 850-1400°C (850-950°C for aluminum-based composite materials, 900-1050°C for copper-based composite materials, Iron-based composite materials 1000-1400°C, time 60-240 minutes);

[0030] (4) Put the crystallized blank in step (3) into the hot extr...

Embodiment 1

[0035] In parts by weight, the composition of the present embodiment nepheline glass-ceramic and metal powder composite material is as follows:

[0036] 30 parts of glass-ceramic powder; 55 parts of iron powder; 10 parts of other metal powder (including 2 parts each of tungsten powder, chromium powder, lithium powder, nickel powder, and lead powder); 5 parts of whisker silicon. In the present invention, the whiskers are silicon whiskers (also known as short silicon fibers, with a length of 2-15 microns and a diameter of 0.001-0.002 microns).

[0037] The preparation method of nepheline glass-ceramic and metal powder composite material in this embodiment, the specific steps are as follows:

[0038] (1) Grind nepheline glass-ceramic water-quenched pellets into 150-mesh fine powder with a ball mill or other grinding equipment, and then mix and grind 100-300-mesh metal powder and whiskers with glass-ceramic powder for 2.5 hours;

[0039] (2) Mold the mixed powder uniformly mixed ...

Embodiment 2

[0046] The difference from Example 1 is:

[0047] In parts by weight, the composition of the present embodiment nepheline glass-ceramic and metal powder composite material is as follows:

[0048] 70 parts of glass-ceramic powder; 20 parts of iron powder; 10 parts of other metal powder (including 2 parts each of tungsten powder, chromium powder, lithium powder, nickel powder, and lead powder); 10 parts of whisker silicon.

[0049] The preparation method of nepheline glass-ceramic and metal powder composite material in this embodiment, the specific steps are as follows:

[0050] (1) Grind nepheline glass-ceramic water-quenched pellets into 150-mesh fine powder with a ball mill or other grinding equipment, and then mix and grind 100-300-mesh metal powder and whiskers with glass-ceramic powder for 2 hours;

[0051](2) Mold the mixed powder uniformly mixed in step (1) with a 300-ton press, determine according to the specifications of the green body, pressure: 180MPa, and mold into...

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Abstract

The invention relates to novel technology for producing novel silicon-based composite material by mixing nepheline glass ceramic and metal, in particular to a nepheline glass ceramic and metal powder composite material and a preparation method thereof. Nepheline glass ceramic powder and the selectively matched metal powder are prepared into novel iron-based, copper-based and aluminum-based composite materials. The glass ceramic powder is mixed with the metal powder, and a whisker is added to realize regrowth so as to improve the toughness; therefore, a novel high-strength composite material is obtained. The preparation method comprises the following steps of: crushing the selectively matched nepheline glass ceramic powder into fine powder with the particle size of 100 to 300 meshes, mixing with the selected metal powder, pressing into a blank, sintering and crystallizing in a crystallization furnace, forming by using a second hot extrusion mold, toughening by using a belt kiln, annealing, and finishing to prepare a high-strength product. The nepheline glass ceramic and metal powder composite material overcomes the defect of low physical and chemical properties of pure metal, and reduces the cost by 50 to 80 percent compared with a metallurgical product of pure metal powder.

Description

technical field [0001] The invention relates to the field of new materials, specifically a nepheline glass-ceramic and metal powder composite material and a preparation method thereof, in which glass-ceramic powder and metal powder are mixed and whiskers are added to achieve regrowth to improve toughness. In order to obtain a new type of high-strength composite material. Background technique [0002] In recent years, powder metallurgy technology has developed vigorously, but metal resources are limited. If nepheline glass-ceramic with silicon dioxide as the main raw material is mixed with metal, it can not only save a lot of metal, but also improve the performance of the product and greatly reduce cost. However, the combination of glass and metal cannot be realized with traditional methods and materials, because glass is an acidic oxide and metal is an alkaline oxide. Contents of the invention [0003] The purpose of the present invention is to provide a composite materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00C22C47/14
Inventor 赵凤宇
Owner 赵凤宇
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