JPS6487558A - Drill - Google Patents
DrillInfo
- Publication number
- JPS6487558A JPS6487558A JP62246521A JP24652187A JPS6487558A JP S6487558 A JPS6487558 A JP S6487558A JP 62246521 A JP62246521 A JP 62246521A JP 24652187 A JP24652187 A JP 24652187A JP S6487558 A JPS6487558 A JP S6487558A
- Authority
- JP
- Japan
- Prior art keywords
- drill
- al2o3
- pressure
- zro2
- ceramic obtained
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 230000002706 hydrostatic effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 238000000975 co-precipitation Methods 0.000 abstract 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE:To enhance the working precision of a material to be ground and to improve the resistance of the title drill to chipping and breakage by using a ceramic obtained by adding a specified amt. of Al2O3 to tetragonal ZrO2 as the drill material. CONSTITUTION:The drill is formed from the ceramic obtained by adding 10-50wt.% Al2O3 to the ZrO2 contg. 1-5mol.%, in total, one or two kinds between Y2O3 and Nd2O3. The drill has >=150kg/mm<2> flexual strength, >=about 5MN/m<1.5> breaking toughness, and >=about 1,200 Vickers hardness. The drill is preferably produced by the following process. Namely, the raw powder produced by wet coprecipitation is used, formed at the pressure of >=1ton/cm<2> by CIP (cold hydrostatic press), temporarily sintered at 1,300-1,500 deg.C in an atmospheric furnace, and further sintered at 1,300-1,500 deg.C and >=500atm. pressure by HIP (hot hydrostatic press).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62246521A JPS6487558A (en) | 1987-09-30 | 1987-09-30 | Drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62246521A JPS6487558A (en) | 1987-09-30 | 1987-09-30 | Drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6487558A true JPS6487558A (en) | 1989-03-31 |
Family
ID=17149634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62246521A Pending JPS6487558A (en) | 1987-09-30 | 1987-09-30 | Drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6487558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19703175C2 (en) * | 1997-01-29 | 2003-02-06 | Fraunhofer Ges Forschung | Process for the production of ceramic or powder metallurgical components with a helical outer contour |
-
1987
- 1987-09-30 JP JP62246521A patent/JPS6487558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19703175C2 (en) * | 1997-01-29 | 2003-02-06 | Fraunhofer Ges Forschung | Process for the production of ceramic or powder metallurgical components with a helical outer contour |
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