Sintering jig

Patent metadata

Field	Value
Publication number	US-11858860-B2
Application number	US-201916391767-A
Country	US
Kind code	B2
Filing date	Apr 23, 2019
Priority date	Dec 3, 2018
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A sintering jig according to the disclosure includes a first plate including a plurality of protrusions and a second plate stacked on the first plate and including through holes corresponding to the protrusions. The through hole includes a cylindrical portion through which the protrusion enter and exit and a conical portion widening towards an upper surface of the second plate from the cylindrical portion.

First claim

What is claimed is:

1. A sintering jig comprising:
a first plate comprising a plurality of protrusions on an upper surface thereof; and
a second plate stacked on the first plate and comprising a plurality of through holes corresponding to the plurality of the protrusions,
wherein each of the plurality of through holes comprises a cylindrical portion configured such that a corresponding one of the plurality of protrusions enters and exits from beneath the second plate, and a conical portion widening from the cylindrical portion towards an upper surface of the second plate.

2. The sintering jig of claim 1 , wherein the plurality of protrusions of the first plate occupy a portion of a corresponding one of the plurality of cylindrical portions when the first plate is combined with the second plate.

3. The sintering jig of claim 1 , wherein the first plate and the second plate comprise zirconia.

4. The sintering jig of claim 1 , wherein an upper surface of each of the plurality of protrusions has a surface roughness of 0.2 μm or less.

5. The sintering jig of claim 1 , wherein an upper surface of each of the plurality of protrusions is a convex surface in which a central portion of the convex surface protrudes upwards.

6. The sintering jig of claim 1 , wherein the cylindrical portion and the conical portion are contiguous.

7. The sintering jig of claim 1 , wherein the plurality of protrusions is configured such that, upon entering, from beneath, a corresponding one of the through holes, the corresponding protrusion does not enter the conical portion of the corresponding through hole.

8. The sintering jig of claim 1 , wherein a shape of each of the plurality of protrusions matches with a corresponding one of the plurality of through holes when viewed in a plan view.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jo Giyoung
• Kwak Chan
• Jeong Taewon

Classifications

• C04B35/64 Primary

  Burning or sintering processes (C04B33/32 takes precedence {; powder metallurgy B22F}) · CPC title

• B29C33/0022

  Multi-cavity moulds (B29C33/301 takes precedence) · CPC title

• B29C35/02

  Heating or curing, e.g. crosslinking or vulcanizing {during moulding, e.g. in a mould}(cold vulcanisation B29C35/18 {; vulcanising tyres, presses therefor B29D30/0601}) · CPC title

• B30B15/022

  Moulds for compacting material in powder, granular of pasta form · CPC title

• C04B35/48

  based on zirconium or hafnium oxides, zirconates, {zircon} or hafnates · CPC title