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Inert composite setter plate and preparation method thereof

A setter, inert technology, used in lighting and heating equipment, furnaces, charging support, etc., can solve problems such as inability to meet isolation requirements, high porosity, cracking, etc. Longevity, the effect of reducing manufacturing costs

Pending Publication Date: 2018-06-05
江苏三恒高技术窑具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the thin coating, the coating is attached to the surface of the sandwich setter with low density and high porosity, which cannot meet the requirements of electronic components with high isolation requirements.
If the zirconia material is directly compounded on the sandwich setter, it is necessary to solve the problem of shedding or cracking due to the difference in linear expansion coefficient between the zirconia material and the alumina material

Method used

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  • Inert composite setter plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] An inert composite setter plate is a five-layer structure composite plate consisting of alumina layer 1, silicon carbide layer 2, alumina layer 1, alumina and zirconia mixed layer 3 and zirconia layer 4 from bottom to top. The mass percentages of raw materials for each component of each layer of the burner plate are as follows: alumina layer: 30% corundum 24-60 mesh, 40% corundum 60-100 mesh, 20% corundum 325 mesh, 10% kaolin; silicon carbide layer: carbonized Silicon 16~36 mesh 30%, silicon carbide 60~100 mesh 40%, silicon carbide 325 mesh 20%, kaolin 10%; alumina and zirconia mixed layer: corundum 24~60 mesh 10%, corundum 60~100 mesh 30 %, corundum 325 mesh 10%, calcium stabilized zirconia or yttrium stabilized zirconia 24~60 mesh 20%, calcium stabilized zirconia or yttrium stabilized zirconia 60~100 mesh 10%, calcium stabilized zirconia or yttrium stabilized zirconia 325 Mesh 10%, kaolin 10%; calcium stabilized zirconia or yttrium stabilized zirconia 24~60 mesh 20%, ...

Embodiment 2

[0014] An inert composite setter plate is a five-layer structure composite plate consisting of alumina layer 1, silicon carbide layer 2, alumina layer 1, alumina and zirconia mixed layer 3 and zirconia layer 4 from bottom to top. The mass percentages of the raw materials for each layer of the setter plate are as follows: alumina layer: 45% corundum 24-60 mesh, 38% corundum 60-100 mesh, 12% corundum 325 mesh, 5% kaolin; silicon carbide layer: carbonized Silicon 16~36 mesh 42%, silicon carbide 60~100 mesh 36%, silicon carbide 325 mesh 15%, kaolin 7%; alumina and zirconia mixed layer: corundum 24~60 mesh 22%, corundum 60~100 mesh 18 %, corundum 325 mesh 12%, calcium stabilized zirconia or yttrium stabilized zirconia 24~60 mesh 8%, calcium stabilized zirconia or yttrium stabilized zirconia 60~100 mesh 20%, calcium stabilized zirconia or yttrium stabilized zirconia 325 Mesh 15%, kaolin 5%; calcium stabilized zirconia or yttrium stabilized zirconia 24~60 mesh 30%, calcium stabilized...

Embodiment 3

[0016] An inert composite setter plate is a five-layer structure composite plate consisting of alumina layer 1, silicon carbide layer 2, alumina layer 1, alumina and zirconia mixed layer 3 and zirconia layer 4 from bottom to top. The mass percentages of raw materials for each component of each layer of the setter plate are as follows: alumina layer: 50% of corundum 24-60 mesh, 37% of corundum 60-100 mesh, 5% of corundum 325 mesh, 8% of kaolin; silicon carbide layer: carbonized Silicon 16~36 mesh 50%, silicon carbide 60~100 mesh 20%, silicon carbide 325 mesh 20%, kaolin 10%; alumina and zirconia mixed layer: corundum 24~60 mesh 30%, corundum 60~100 mesh 10 %, corundum 325 mesh 20%, calcium stabilized zirconia or yttrium stabilized zirconia 24~60 mesh 3%, calcium stabilized zirconia or yttrium stabilized zirconia 60~100 mesh 12%, calcium stabilized zirconia or yttrium stabilized zirconia 325 Mesh 20%, kaolin 5%; calcium stabilized zirconia or yttrium stabilized zirconia 24~60 me...

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Abstract

The invention discloses an inert composite setter plate. The inert composite setter plate is a five-layer composite board sequentially comprising an aluminum oxide layer, a silicon carbide layer, an aluminum oxide layer, an aluminum oxide and zirconium oxide mixed layer and a zirconium oxide layer from bottom to top. The invention further discloses a preparation method of the inert composite setter plate. Compared with the conventional technology, the inert composite setter plate provided by the invention has the advantages as follows: on the basis of sufficient understanding of using environmental requirements and main damage reasons of the setter plate, through arrangement of the aluminum oxide and zirconium oxide mixed layer as a transition layer and improvement on particle graduation and a manufacturing technology, the bonding strength between layers of the composite setter plate is improved, the isolating function of the composite setter plate is reflected relatively effectively,the service life of the composite setter plate is prolonged and the manufacturing cost of a using unit is reduced.

Description

technical field [0001] The invention belongs to the field of refractory kiln furniture preparation, and in particular relates to an inert composite setter and a preparation method thereof. Background technique [0002] Composite setter is a kiln furniture for sintering electronic components, generally with a composite structure of silicon carbide as the middle layer and alumina as the wrapping layer. Electronic components represented by magnetic materials contain elements such as iron, oxygen, manganese, and zinc, which are more likely to react with elements such as silicon and aluminum during high-temperature sintering, causing pollution to magnetic materials. Therefore, the requirements for the atmosphere of the kiln are very high. The most common method is to lay a layer of zirconia backing plate on the setter. The stability and inertness of zirconia can play a good role in isolation. However, the cost of zirconium plate is relatively high, which has a greater impact on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/48C04B35/565C04B35/622C04B35/66F27D5/00
CPCF27D5/00C04B35/10C04B35/48C04B35/565C04B35/622C04B35/66C04B2235/349C04B2235/3246F27M2003/04
Inventor 王立平王理达
Owner 江苏三恒高技术窑具有限公司