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Sintering device

a technology of sintering device and sintering chamber, which is applied in the direction of lighting and heating apparatus, furnace types, furnaces, etc., can solve the problems of increasing manufacturing costs and structure complexity, and achieve the effect of preventing oxidization

Inactive Publication Date: 2017-07-20
DENSTAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention describes a way to prevent oxidation on a metallic workpiece during a sintering process. A cylindrical member is placed on the base part of the tray and sintering chamber to keep oxygen away from the workpiece. This results in better quality and prevents damage to the workpiece.

Problems solved by technology

However, there is a problem in the conventional sintering devices mentioned above that an oxygen in the residual gas in the cavity formed by the cover 20 oxidize the sintering material in the cavity surrounded by the cover member 30 in the sintering process.
Furthermore, in the conventional sintering devices, a sintering chamber should be formed by a least two elements arranged on the base plate, thereby causing an increase of manufacturing costs and complexity of structure.

Method used

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Embodiment Construction

[0024]The present invention will be hereafter described in detail with reference to the accompanying drawings.

[0025]The sintering device according to the first embodiment of the present invention FIGS. 3, 4, 5 includes a tray comprising a tray part 330 and a base part 331 integrally formed therewith and a sintering chamber 340 covering the tray part 330, the upper portion of the tray part 330 being opened. That is, the tray part and the base part are different from a tray and a base plate in the FIGS. 1 and 2 in that the tray part and base part are integrally formed in one piece.

[0026]The tray part 330 is provided with a cylindrical side wall 332 formed upwardly on the bottom surface to form an inner space for accommodating workpieces therein and the base part 331 is formed with through holes 334 in horizontal and longitudinal directions for gas inflowing and discharging, and a hole 335 at crossover point of the through holes 334 for penetrating the center portion of the base plate ...

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Abstract

A sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part;wherein the tray part and base part are integrally formed; wherein the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and wherein the lower end of the sinter chamber is disposed on the lowered and stepped surface of the base part and the stepped portion formed in the middle of the side wall of the sintering chamber is supported by the upper end of the side wall of the tray for allowing the gas to flow.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority to Korean Patent Application No. 10-2016-0005990 filed Jan, 18, 2016, the entirety of the disclosure of which is expressly incorporated herein by reference.STATEMENT RE: FEDERALLY SPONSORED RESEARCH / DEVELOPMENT[0002]Not ApplicableBACKGROUND[0003]The present invention relates to a sintering device, and more particularly to a sintering device comprising a cylindrical member formed of titanium or titanium alloy to restrain oxidation of metallic workpieces to be sintered in the sintering device. Furthermore, the present invention relates to a sintering device in which a tray may be arranged on a base plate in a chamber member in a gas-tight manner without using any separate cover.[0004]A conventional sintering device of the above-mentioned type comprises a base part, a tray placed on the base part, a cover for covering the tray accommodating the sinter product and a tray chamber surrounding the tray and...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22F3/00B22F3/10
CPCB22F3/101B22F3/003B22F3/1007B22F2003/1014F27B21/04
Inventor CHA, JONGDAE
Owner DENSTAR