JPH0343708Y2 - - Google Patents
Info
- Publication number
- JPH0343708Y2 JPH0343708Y2 JP1986047892U JP4789286U JPH0343708Y2 JP H0343708 Y2 JPH0343708 Y2 JP H0343708Y2 JP 1986047892 U JP1986047892 U JP 1986047892U JP 4789286 U JP4789286 U JP 4789286U JP H0343708 Y2 JPH0343708 Y2 JP H0343708Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- stainless steel
- mold
- magnetic
- magnetic stainless
- 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.)
- Expired
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、プラスチツク磁石の成形金型に関
するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a mold for forming a plastic magnet.
プラスチツク磁石は、フエライト粉等の磁性材
料を含む熱可塑性樹脂を金型で成形し、成形品を
磁場中に置いて着磁するか、金型を磁場中に置い
て成形と同時に着磁して製造されている。
Plastic magnets are made by molding thermoplastic resin containing magnetic materials such as ferrite powder in a mold, and placing the molded product in a magnetic field to magnetize it, or by placing the mold in a magnetic field and magnetizing it at the same time as molding. Manufactured.
ところで、金型を磁場中に置いて成形と同時に
着磁を行う場合、金型の成形空間を通過する磁束
密度を高くしなければ成形品の磁場特性を強くす
ることができない。 By the way, when a mold is placed in a magnetic field and magnetized simultaneously with molding, the magnetic field characteristics of the molded product cannot be strengthened unless the magnetic flux density passing through the molding space of the mold is increased.
このため、従来は、金型の固定側型板と可動側
型板の対向面に、成形空間の周囲を覆うように非
磁性ステンレス鋼を貼り付けて、成形空間に磁束
が集中するようにしている。 For this reason, in the past, non-magnetic stainless steel was attached to the opposing surfaces of the fixed side template and movable side template of the mold so as to cover the periphery of the molding space, so that magnetic flux was concentrated in the molding space. There is.
この金型の型板表面に貼り付けられる非磁性ス
テンレス鋼の厚みは、成形品の厚みが薄い場合に
はそれに伴なつて薄くしなければならないが、従
来、上記非磁性ステンレス鋼は型板にボルト、あ
るいは熔接によつて取付けられるので、その厚み
を薄くすることができないと共に、取付け精度、
耐久性にも問題があつた。 If the thickness of the molded product is thin, the thickness of the non-magnetic stainless steel attached to the template surface of this mold must be reduced accordingly. Since it is attached by bolts or welding, it is not possible to reduce the thickness, and the accuracy of the installation is poor.
There were also problems with durability.
そこで、この考案は、かかる問題点を解消する
ことを目的とする。 Therefore, this invention aims to solve such problems.
この考案は、上記の問題点を解決するために、
固定側型板と可動側型板の少なくとも一方を、鋼
板と非磁性ステンレス鋼板とを接合したステンレ
スクラツド鋼板によつて、非磁性ステンレス鋼板
側を相手方の型板に向けて形成し、非磁性ステン
レス鋼板に成形空間を設けたものである。
In order to solve the above problems, this idea
At least one of the stationary side template and the movable side template is formed of a stainless clad steel plate made by joining a steel plate and a non-magnetic stainless steel plate, with the non-magnetic stainless steel plate side facing the other template, and the non-magnetic A molding space is provided in a stainless steel plate.
この考案の金型においては、上記のように、ス
テンレスクラツド鋼板の非磁性ステンレス鋼板に
成形空間を設けたので、成形空間の周囲が非磁性
ステンレス鋼で覆われる。上記ステンレスクラツ
ド鋼板は、鋼板と非磁性ステンレス鋼板とを熱間
圧延法により密着接合させたものであるから、非
磁性ステンレス鋼板の厚みを極めて薄くすること
ができ、しかも非磁性ステンレス鋼板と鋼板との
取付け精度、耐久性に優れている。
In the mold of this invention, as described above, since the molding space is provided in the non-magnetic stainless steel plate of the stainless clad steel plate, the periphery of the molding space is covered with the non-magnetic stainless steel. The above-mentioned stainless clad steel plate is made by closely joining a steel plate and a non-magnetic stainless steel plate by hot rolling, so the thickness of the non-magnetic stainless steel plate can be made extremely thin, and the thickness of the non-magnetic stainless steel plate and the steel plate can be made extremely thin. Excellent installation accuracy and durability.
以下、この考案の実施例を添付図面に基づいて
説明する。
Hereinafter, embodiments of this invention will be described based on the accompanying drawings.
図面に示す金型は、固定側型板１と可動側型板
２とから成る。この固定側型板１は、鋼板３に非
磁性ステンレス鋼板４を熱間圧延法により密着接
合させたステンレスクラツド鋼板によつて形成さ
れ、非磁性ステンレス鋼板４が可動側型板２に向
けられている。この非磁性ステンレス鋼板４には
成形空間５が設けられ、この成形空間５にはゲー
ト６が連通するように設けられている。図面中、
７，８は、取付け板を示している。 The mold shown in the drawings consists of a stationary mold plate 1 and a movable mold plate 2. This stationary side template 1 is formed of a stainless clad steel plate in which a non-magnetic stainless steel plate 4 is tightly bonded to a steel plate 3 by hot rolling, and the non-magnetic stainless steel plate 4 is directed toward the movable side template 2. ing. This non-magnetic stainless steel plate 4 is provided with a molding space 5, and a gate 6 is provided so as to communicate with this molding space 5. In the drawing,
7 and 8 indicate mounting plates.
図面に示す金型は、上記のように、固定側型板
１をステンレスクラツド鋼板によつて形成した
が、可動側型板２をステンレスクラツド鋼板によ
つて形成してもよい。 In the mold shown in the drawings, the fixed side mold plate 1 is formed of a stainless clad steel plate as described above, but the movable side mold plate 2 may be formed of a stainless steel clad steel plate.
この考案は、以上のように、鋼板と非磁性ステ
ンレス鋼板とを熱間圧延法により密着接合させた
ステンレスクラツド鋼板によつて型板を形成する
ので、成形空間の周囲を極めて厚みの薄い非磁性
ステンレス鋼板で覆うことが可能となる。
As described above, in this invention, the mold plate is formed from a stainless clad steel plate made by closely joining a steel plate and a non-magnetic stainless steel plate by hot rolling, so the periphery of the molding space is surrounded by an extremely thin non-magnetic plate. It becomes possible to cover it with a magnetic stainless steel plate.
第１図はこの考案に係る金型の一実施例を示す
概略図である。
１……固定側型板、２……可動側型板、３……
鋼板、４……非磁性ステンレス鋼板、５……成形
空間。
FIG. 1 is a schematic diagram showing an embodiment of a mold according to this invention. 1... Fixed side template, 2... Movable side template, 3...
Steel plate, 4... Non-magnetic stainless steel plate, 5... Molding space.
Claims (1)
鋼板と非磁性ステンレス鋼板とを接合したステン
レスクラツド鋼板によつて、非磁性ステンレス鋼
板側を相手方の型板に向けて形成し、非磁性ステ
ンレス鋼板に成形空間を設けて成るプラスチツク
磁石の成形金型。 At least one of the fixed side template and the movable side template,
A molding mold for a plastic magnet made of a stainless clad steel plate made by joining a steel plate and a non-magnetic stainless steel plate, with the non-magnetic stainless steel plate side facing the other mold plate, and a molding space provided in the non-magnetic stainless steel plate. Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986047892U JPH0343708Y2 (en) | 1986-03-29 | 1986-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986047892U JPH0343708Y2 (en) | 1986-03-29 | 1986-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62158817U JPS62158817U (en) | 1987-10-08 |
| JPH0343708Y2 true JPH0343708Y2 (en) | 1991-09-12 |
Family
ID=30868916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986047892U Expired JPH0343708Y2 (en) | 1986-03-29 | 1986-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343708Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216453A (en) * | 1983-05-20 | 1984-12-06 | Hitachi Metals Ltd | Manufacture of cylindrical permanent magnet |
-
1986
- 1986-03-29 JP JP1986047892U patent/JPH0343708Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62158817U (en) | 1987-10-08 |
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