JPS63234508A - Manufacture of rare-earth plastic magnet ringlike molded body - Google Patents
Manufacture of rare-earth plastic magnet ringlike molded bodyInfo
- Publication number
- JPS63234508A JPS63234508A JP6793687A JP6793687A JPS63234508A JP S63234508 A JPS63234508 A JP S63234508A JP 6793687 A JP6793687 A JP 6793687A JP 6793687 A JP6793687 A JP 6793687A JP S63234508 A JPS63234508 A JP S63234508A
- Authority
- JP
- Japan
- Prior art keywords
- core
- molded body
- ringlike
- mold
- injection molding
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910052761 rare earth metal Inorganic materials 0.000 title 1
- 150000002910 rare earth metals Chemical class 0.000 title 1
- 238000001746 injection moulding Methods 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 238000000465 moulding Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 1
Abstract
PURPOSE: To make it possible to easily form a nondeformed molded body using a simple and low-priced injection molding metal mold by a method wherein, using the injection molding metal mold provided with a specific strip groove on the circumferential surface of a core member, a ringlike molding body is fixed to the core memory, and after the mold has been released, the molding body is picked out by projecting it from the core member.
CONSTITUTION: A strip groove 16 of 0.001W1 mm in depth is provided on the circumferential surface of an injection molding metal mold whereon the cavity of the core 10 will be formed. When a plastic magnetic ringlike molded body is formed, material is injected from the nozzle of an injection molding machine, it is filled up in a ring- shaped cavity 17 and molded in a magnetic field. When the molding is completed, a movable metal mold member is separated from a fixed mold member by moving a movable mold supporting plate, and then an ejector rod 14 is thrusted up, the knockout plate 6 coupled with the ejector bars 15 and 16 is pushed up and the ringlike molded body left around a core 8 is picked out from the core 10. As a result, the molded body can be formed easily using an uncomplicated structure and low-priced mold without deformation.
COPYRIGHT: (C)1988,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6793687A JPH0727834B2 (en) | 1987-03-24 | 1987-03-24 | Manufacturing method of rare earth plastic magnet ring-shaped compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6793687A JPH0727834B2 (en) | 1987-03-24 | 1987-03-24 | Manufacturing method of rare earth plastic magnet ring-shaped compact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63234508A true JPS63234508A (en) | 1988-09-29 |
| JPH0727834B2 JPH0727834B2 (en) | 1995-03-29 |
Family
ID=13359312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6793687A Expired - Lifetime JPH0727834B2 (en) | 1987-03-24 | 1987-03-24 | Manufacturing method of rare earth plastic magnet ring-shaped compact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0727834B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925778A (en) * | 2015-12-30 | 2017-07-07 | 上海三环磁性材料有限公司 | A kind of anisotropic bonded magnet planar orientation mould |
-
1987
- 1987-03-24 JP JP6793687A patent/JPH0727834B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925778A (en) * | 2015-12-30 | 2017-07-07 | 上海三环磁性材料有限公司 | A kind of anisotropic bonded magnet planar orientation mould |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0727834B2 (en) | 1995-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5630841A (en) | Plastic molding method and metallic mold therefor | |
| JPS63234508A (en) | Manufacture of rare-earth plastic magnet ringlike molded body | |
| JPS5952632A (en) | Production of synthetic resin stamp member | |
| JPS63182115A (en) | Molding method for pad for gas bag and mold to be used for its molding | |
| JPS60220722A (en) | Mold for injection molding | |
| JPH0382350A (en) | Electric motor field rotor and manufacture thereof | |
| JPS60141518A (en) | Method of molding lens | |
| JPS59190825A (en) | Insert molding | |
| JPS6391212A (en) | Preparation of injection molded product partly with stuck fabric | |
| JPS61273920A (en) | Injection molding of molded product embedded with insert | |
| JPS63111023A (en) | Mold for plastic | |
| JPS5678956A (en) | Preparation of wheel made of high molecular material having high central portion around ground engaging surface | |
| JPH0339220A (en) | Molding method for resin product | |
| JPH02243103A (en) | Manufacture of slider with automatic stopper | |
| JPH01228817A (en) | Injection molding machine of anisotropic plastic magnet | |
| JPH0470313A (en) | Injecting, baking and molding method by use of multimaterials-molding machine | |
| JPS61277416A (en) | Injection molding method for molded article into which insert is buried | |
| JPH0494515A (en) | Manufacture of u-shaped core | |
| JPH0449017A (en) | Manufacture of insulated case for push-button switch | |
| JPS57105331A (en) | Metal mold device for injection compression molding | |
| JPS5487760A (en) | Method of injection molding of synthetic resin | |
| JPS56101837A (en) | Injection molding method for product | |
| JPH04140120A (en) | Injection molding device | |
| JPS63130315A (en) | Injection molding machine for plastic magnet | |
| JPS62238720A (en) | Injection mold for annular molded product |