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Rack for firing

A rack and setter technology, applied to furnaces, electric charge control, lighting and heating equipment, etc., can solve problems such as gas flow obstruction, poor product yield, hindering energy efficiency and mass production efficiency, etc., to achieve uniformity Excellent thermal performance, large heat radiation rate, and the effect of realizing energy efficiency and mass production efficiency

Active Publication Date: 2013-05-08
NGK INSULATORS LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the setters are stacked, the flow of gas in the furnace is hindered by the protrusion 8, and the entire surface under the lowermost setter is in contact with the furnace body directly or through the tray, so it is greatly affected by the heat conduction from the furnace body. The influence of each layer, so the uniform heating of each layer is difficult
For example, compared with the electronic ceramic components that have been heat-treated in the lowermost setter, there is a problem of poor product yield
[0005] In addition, as in Patent Document 2, when the dish-shaped setters are laminated around, there is a problem that the flow of the gas in the furnace is hindered by the peripheral wall, and the peripheral wall formed to ensure the strength of the lamination is opposite to each other. The weight and volume occupied by the setter plate as a whole hinder the efficiency of energy efficiency and mass production efficiency

Method used

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Experimental program
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Effect test

no. 1 approach ）

[0038] figure 1 and figure 2It is a figure which shows the 1st Embodiment of this invention. The firing frame 1 of the present embodiment has a roughly cubic shape, and the setter holding device includes: 4 vertical pillars 2 at the corners, which form the vertical sides of the 4 corners; a substantially mouth-shaped lower end support frame 4, which For supporting the lower end of these 4 corner vertical pillars 2 (2a, 2b, 2c, 2d); the upper end support frame 3 of roughly mouth shape, it is used for supporting the upper end of these 4 vertical pillars 2. Such as figure 1 As shown, this firing frame 1 is a device used by inserting a flat setter 7 .

[0039] Horizontal grooves 21 are formed on the inner surfaces of the vertical pillars 2 at each corner in parallel to the insertion direction of the flat setter 7, thereby constituting a setter holding mechanism. The flat setter 7 is inserted into the position of this horizontal groove part 21, and is held. A plurality of h...

no. 2 approach ）

[0055] Figure 5 and Figure 6 It is a figure which shows the 2nd Embodiment of this invention. The firing frame 1 of the present embodiment is a device in which the setter holding device is constituted by a frame-shaped flat plate member 10 having a plurality of stacking protrusions 11 in the peripheral portion. exist Figure 5 In the preferred embodiment, the rectangular flat member 10 has quadrangular holes 12 on the left and right sides, and the flat setter 7 is placed on this part. At the left and right ends of one side of the plate member 10 and the central part of the side opposite to the side, respectively protrudingly provided with a stacking protrusion 11, protrudingly provided with a layer lower than the stacking protrusion 11 at a position around the hole 12. Protrusion 13 is used for positioning.

[0056] Figure 6 It is a side view of the state in which the flat setter 7 was hold|maintained by this setter holding apparatus and laminated|stacked in multiple l...

no. 3 approach ）

[0058] Figure 7 and Figure 8It is a figure which shows the 3rd embodiment of this invention. The firing frame 1 setter holding device of this embodiment includes a pair of linear members 16 and a beam 18 arranged opposite to each other, wherein the pair of linear members 16 has a plurality of stacking protrusions 15; the beam 18 is erected on between the upper concave surfaces 17 of the respective stacking protrusions 15 . The stacking protrusion 15 is a mountain-shaped protrusion, and a recess 19 is formed on the lower side thereof. The beam 18 is a rod-shaped body with an angled cross section, and both ends thereof are fitted into the upper concave surface 17 of the stacking protrusion 15, and the flat setter 7 is placed thereon.

[0059] Figure 8 It is a side view of the state laminated|stacked multilayer after holding the flat setter 7 on these beams 18, and the flat setter 7 is shown by the dotted line. Such as Figure 8 As shown, the lower recess 19 fits into th...

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Abstract

Provided is a rack for firing which holds a plurality of flat board-like setters at multiple levels in the perpendicular direction by means of a setter holding means, and fires electronic ceramic elements at multiple levels. The setter holding means is composed of a material composed of Si-SiC containing 0.01-30 % of Si or recrystallized SiC or Si3N4-SiC, and the setter holding means holds each of the flat board-like setters with 70-100 % of the outer circumferential side surface thereof exposed. Consequently, the rack has excellent energy efficiency, mass-production efficiency, and uniform heating characteristics at each of the multiple levels in the multiple-level firing.

Description

technical field [0001] The invention relates to a firing frame mainly suitable for multi-layer firing of electronic ceramic components. Background technique [0002] Generally, electronic ceramic components are manufactured by adding and mixing sintering auxiliary materials and forming auxiliary agents to ceramic powder as the main raw material, forming green parts by molding, and placing the green parts on a so-called The ceramic plate of the setter is placed in a firing furnace, and firing is carried out while controlling the inside of the furnace under predetermined temperature and atmosphere conditions. [0003] Setter boards are usually used in a multi-layer stacked manner, as a structure that forms spaces between multi-layered setter boards, for example, the following structure is disclosed: Figure 9 As shown, the tray which formed the protrusion 8 on the upper surface peripheral edge was fitted and laminated|stacked with the plate-shaped setter (patent document 1). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D3/12C04B35/565C22C29/06
CPCF27D5/0031B22F3/003B22F2003/1042C04B2235/3873C04B2235/963C04B2235/80C04B2235/428C04B2235/72C04B2235/9623C04B2235/77C04B2235/9607C04B2235/96C04B35/573F27D5/0037F27D2005/0081
Inventor 古宫山常夫崛田启之松本信宏
Owner NGK INSULATORS LTD
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