Sintering jig

Patent metadata

Field	Value
Publication number	US-2020172445-A1
Application number	US-201916391767-A
Country	US
Kind code	A1
Filing date	Apr 23, 2019
Priority date	Dec 3, 2018
Publication date	Jun 4, 2020
Grant date	—

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 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 through which a corresponding one of the plurality of protrusions enter and exit 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 . A sintering jig comprising:
a first plate comprising a plurality of through holes, a first surface, and a second surface, wherein the first surface and the second surface face each other; and a plurality of bolts entering and exiting a corresponding one of the plurality of through holes from the second surface of the first plate for screw-coupling and blocking a lower side of each of the plurality of through holes.

7 . The sintering jig of claim 6 , wherein each of the plurality of through holes comprises a cylindrical portion and a conical portion widening from the cylindrical portion towards the first surface of the first plate.

8 . The sintering jig of claim 7 , wherein each of the plurality of cylindrical portions of the first plate comprises a screw groove, and each of the plurality of bolts comprises a screw thread that combine with a corresponding one of the plurality of screw grooves.

9 . The sintering jig of claim 7 , further comprising a rim on each of the plurality of cylindrical portions of the first plate,
wherein an upper surface of each of the plurality of bolts and an upper surface of a corresponding one of the plurality of rims forms a coplanar plane when each of the plurality of bolts is screw-combined with the first plate.

10 . The sintering jig of claim 7 , wherein the first plate and each of the plurality of bolts comprise zirconia.

11 . The sintering jig of claim 7 , wherein an upper surface of each of the plurality of bolts has a surface roughness of 0.2 μm or less.

12 . A sintering jig comprising:
a flat first plate; a second plate on the flat first plate and comprising a plurality of through holes; and a plurality of hollow guide molds insertable into a corresponding one of the plurality of through holes of the second plate.

13 . The sintering jig of claim 12 , wherein each of the plurality of hollow guide molds comprises an upper portion and a handle portion extending outwards from the corresponding upper portion.

14 . The sintering jig of claim 12 , further comprising a plurality of presses each comprising a cylindrical portion that enters and exits through an inner side of a corresponding one of the plurality of hollow guide molds.

15 . The sintering jig of claim 14 , wherein the first plate and the second plate comprise zirconia, and the plurality of hollow guide molds and the plurality of presses comprise plastic.

16 . The sintering jig of claim 12 , wherein an upper surface of the first plate has a surface roughness of 0.2 μm or less.

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

• C04B35/48

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

• C04B41/87

  Ceramics · CPC title

• B32B18/00

  Layered products essentially comprising ceramics, e.g. refractory products · CPC title

• B30B15/022

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