Ceramic binder, ceramic metal composite material and preparing method of ceramic metal composite material and composite material load bearing board

A technology of ceramic bonding agent and composite material, which is applied in the field of superhard material product manufacturing, can solve the problems of large temperature difference between the top and bottom of the ceramic setter plate, uneven product performance, inability to guarantee accuracy, etc., and achieves enhanced bonding strength, small deformation, Reasonable effect

Active Publication Date: 2017-03-22
FUNIK ULTRAHARD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Graphite plate has good thermal conductivity, but it is easy to oxidize at high temperature, the accuracy cannot be guaranteed, and its service life is short. At the same time, it is easy to generate carbon monoxide, carbon dioxide and other gases in the sintering furnace, which is not conducive to sintering
[0004] The corundum-mullite setter plate is currently the most used ceramic setter plate, which has the advantage of not being easily oxidized. For example, the Chinese invention patent with the publication number CN102674864A discloses a corundum-mullite setter plate formula: it is made of electrofused Mollite Come stone, fused white corundum, tabular corundum, a-A1 2 o 3 It is composed of fine powder, kaolin, activator, and binder, but its thermal conductivity is poor, and the temperature difference between the upper and lower ceramic setters is large, which makes the performance of the product uneven.

Method used

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  • Ceramic binder, ceramic metal composite material and preparing method of ceramic metal composite material and composite material load bearing board

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Experimental program
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Embodiment 1

[0030] The vitrified bond in this embodiment is composed of the following components by mass: 60% SiO 2 , 20% Al 2 O 3 , 7% H 3 BO 3 , 8% MgO, 4% Na 2 CO 3 , 1% CaF 2 .

[0031] The ceramic-metal composite material in this embodiment is made of the following raw materials by mass percentage: 32% of the above-mentioned ceramic binder, 8% of nickel-chromium alloy, 58% of white corundum, and 2% of water glass.

[0032] The ceramic metal composite material is a composite setter plate.

[0033] The preparation method of the composite setter plate in the present embodiment includes the following steps:

[0034] 1) Mix the formula amount of ceramic binder, nickel-chromium alloy, white corundum, and water glass to obtain a mixture, put the mixture into the mold, and put the mixture into the mold at a rate of 100kg / cm 2 The pressure-holding pressure for 30s is pressed and formed, and after demoulding, it is put into an oven for drying at 80°C for 24h to obtain a blank; the par...

Embodiment 2

[0038] The vitrified bond in this embodiment is composed of the following components by mass: 50% SiO 2 , 25% Al 2 O 3 , 10% H 3 BO 3 , 6% MgO, 8% Na 2 CO 3 , 1% CaF 2 .

[0039] The ceramic metal composite material in this embodiment is made of the following raw materials by mass percentage: 25% of the above-mentioned ceramic bond, 10% of nickel-chromium alloy, 60% of alumina, and 5% of water glass.

[0040]The preparation method of the ceramic metal composite material in this embodiment includes the following steps:

[0041] 1) Mix the formula amount of ceramic binder, nickel-chromium alloy, alumina, and water glass to obtain a mixture, put the mixture into the mold, and put the mixture into the mold at a rate of 50kg / cm 2 The pressure-holding pressure for 20s is pressed and formed, and after demoulding, it is put into an oven for drying at 100°C for 20h to obtain a blank; the particle size of the nickel-chromium alloy is 300 mesh, and the particle size of alumina is...

Embodiment 3

[0044] The vitrified bond in this embodiment is composed of the following components by mass: 65% SiO 2 , 15% Al 2 O 3 , 8% H 3 BO 3 , 5% MgO, 5% Na 2 CO 3 , 2% CaF 2 .

[0045] The ceramic metal composite material in this embodiment is made of the following raw materials by mass percentage: 35% of the above-mentioned ceramic bond, 5% of nickel-chromium alloy, 59% of white corundum, and 1% of water glass.

[0046] The preparation method of the ceramic metal composite material in this embodiment includes the following steps:

[0047] 1) Mix the formula amount of ceramic bond, nickel-chromium alloy, white corundum, and water glass to obtain a mixture, put the mixture into the mold, and put the mixture into the mold at a rate of 75kg / cm 2 The pressure-holding pressure for 45s is pressed and formed, and after demoulding, it is put into an oven for drying at 90°C for 22h to obtain a blank; the particle size of the nickel-chromium alloy is 400 mesh, and the particle size of ...

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Abstract

The invention discloses a ceramic binder, a ceramic metal composite material and a preparing method of the ceramic metal composite material and a composite material load bearing board, and belongs to the technical field of super-hard material product manufacturing. The ceramic binder is prepared from, by mass, 50%-70% of SiO2, 15%-25% of Al2O3, 5%-10% of H3BO3, 5%-10% of MgO, 3%-8% of Na2CO3 and 1%-2% of CaF2, the raw materials are simple in ingredients, the binding strength is high, and the ceramic binder is stable at high temperature. The composite material load bearing board is prepared from, by mass, 25%-35% the ceramic binder, 5%-10% of metal binder, 55%-65% of aluminium oxide or white corundum and 1%-5% of sodium silicate. The composite material load bearing board well matches ceramic inorganic substances with metal, achieves ideal heat transfer speed, and stabilizes performance of a sintered product.

Description

technical field [0001] The invention relates to a ceramic bond, a ceramic-metal composite material and a preparation method thereof, and a composite material setter, belonging to the technical field of manufacturing superhard material products. Background technique [0002] The sintering process of superhard materials is divided into hot-pressing sintering and cold-pressing sintering. Hot-pressing sintering is carried out at the same time during sintering by heating up and applying pressure. Low production efficiency and high production cost. Cold-pressed sintering is free sintering in a pressureless state. Cold-pressed sintered products have the advantages of high porosity, good sharpness, large number of sintering at one time, low production cost, and are suitable for the production and processing of special-shaped products. favored by manufacturers. [0003] However, in the process of cold pressing and sintering, the raw materials of the formula will gradually undergo p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16C22C29/12C22C1/05C22C1/10
CPCC03C10/16C22C1/051C22C29/005C22C29/12
Inventor 杨德涛
Owner FUNIK ULTRAHARD MATERIAL
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