JPS6394813A - Magnetic field orientation extruder - Google Patents
Magnetic field orientation extruderInfo
- Publication number
- JPS6394813A JPS6394813A JP61240792A JP24079286A JPS6394813A JP S6394813 A JPS6394813 A JP S6394813A JP 61240792 A JP61240792 A JP 61240792A JP 24079286 A JP24079286 A JP 24079286A JP S6394813 A JPS6394813 A JP S6394813A
- Authority
- JP
- Japan
- Prior art keywords
- carbide
- die
- magnetic field
- superhard material
- extrusion 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910039444 MoC Inorganic materials 0.000 claims abstract description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 4
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910003470 tongbaite Inorganic materials 0.000 claims abstract description 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims abstract 3
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910003468 tantalcarbide Inorganic materials 0.000 claims abstract 3
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 abstract description 11
- 230000005415 magnetization Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract 1
- -1 5LI3304 Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241001385733 Aesculus indica Species 0.000 description 1
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229910004533 TaB2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- GVEHJMMRQRRJPM-UHFFFAOYSA-N chromium(2+);methanidylidynechromium Chemical compound [Cr+2].[Cr]#[C-].[Cr]#[C-] GVEHJMMRQRRJPM-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000003008 phosphonic acid esters Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/142—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration using force fields, e.g. gravity or electrical fields
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は新規な磁場配向押出成形機に関し、更に詳しく
は、ダイの耐久性が改善され、寸法安定性及び（ＢＨ）
ｍａｘの向上した成形体を提供する磁場配向押出成形機
に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a novel magnetically oriented extrusion molding machine, and more particularly, it relates to a novel magnetically oriented extrusion molding machine with improved die durability, dimensional stability and (BH).
The present invention relates to a magnetically oriented extrusion molding machine that provides a molded product with improved max.
「従来技術と問題点」
従来、磁場配向押出成形により異方性樹脂磁石を製造す
るための成形機としては、例えば第１図に示す如く、磁
性材からなるヨーク（１）、（１′）及び非磁性材（２
）、（２′）とにより空隙（３）が形成され、その外側
に外部ヨーク（４）、（４′）が配され、該ヨーク（４
）、（４′）の周囲にはそれぞれ励磁コイル（５）、（
５′）が配設されている。"Prior Art and Problems" Conventionally, as a molding machine for manufacturing anisotropic resin magnets by magnetic field oriented extrusion molding, as shown in FIG. and non-magnetic material (2
), (2') form a gap (3), and external yokes (4), (4') are arranged outside the gap (3).
) and (4') are surrounded by excitation coils (5) and (4'), respectively.
5') are provided.
しかし乍ら、上記磁性材としては３５５Ｃ，Ｓ４５Ｃ，
５ＫＤ４．５ＫＤ５．５ＫＤ６．５ＫＤ１１、鉄コバル
トその他の各種合金が用いられるが、空隙の磁場を大き
くする目的でこれらの磁性材の飽和磁化（４πＩｓ）を
大きくせんとして該材料中の炭素量を減らすと材料が柔
らかくなり、該材料により形成されるダイの耐摩耗性が
低下し、その結果ダイの耐久性が低下するばかりでな（
、得られた成形体の寸法安定性が悪くなり、商品価値を
低下せしめることになる。これとは逆に、ダイの耐久性
、成形品の寸法安定性を高めようとして材料中の炭素量
を増加させると、飽和磁化が低下する結果となる。かく
して、従来の押出成形機においては、この二律背反する
２つの要請を満たすところに解決策を求めざるを得ず、
従来の成形機では飽和磁化は精々５０００ガウス程度ま
でであり、空隙の磁場は不十分であり、従って成形体の
磁気異方性（配向性）において必ずしも満足すべき状態
とは言い難い。However, the above magnetic materials include 355C, S45C,
5KD4.5KD5.5KD6.5KD11, iron cobalt and other various alloys are used, but in order to increase the magnetic field of the air gap, it is possible to increase the saturation magnetization (4πIs) of these magnetic materials and reduce the amount of carbon in the material. As the material becomes softer, the wear resistance of the die formed from the material decreases, which not only reduces the durability of the die (
, the dimensional stability of the obtained molded product deteriorates, resulting in a decrease in commercial value. On the contrary, if the amount of carbon in the material is increased in an attempt to improve the durability of the die and the dimensional stability of the molded product, the saturation magnetization will decrease. Therefore, with conventional extrusion molding machines, we have no choice but to seek a solution that satisfies these two contradictory requirements.
In conventional molding machines, the saturation magnetization is at most about 5000 Gauss, and the magnetic field in the air gap is insufficient, so it cannot be said that the magnetic anisotropy (orientation) of the molded product is necessarily in a satisfactory state.
「問題点を解決するための手段」
本発明はかかる実情に鑑み、上記問題点を解消すべく鋭
意研究の結果、本発明に到達したものである。"Means for Solving the Problems" In view of the above circumstances, the present invention was achieved as a result of intensive research to solve the above problems.
即ち、本発明の第１は磁場配向押出成形により磁気異方
性樹脂磁石を製造する押出成形機において、超硬材から
なるダイを用いたことを特徴とする磁場配向押出成形機
を、本発明の第２は磁場配向押出成形により磁気異方性
樹脂磁石を製造する押出成形機において、ダイの表面を
超硬材で被覆したことを特徴とする磁場配向押出成形機
をそれぞれ内容とするものである。That is, the first aspect of the present invention is an extrusion molding machine for producing magnetically anisotropic resin magnets by magnetic field oriented extrusion molding, which is characterized in that a die made of a superhard material is used. The second is an extrusion molding machine for producing magnetically anisotropic resin magnets by magnetic field oriented extrusion molding, each of which includes a magnetic field oriented extrusion molding machine characterized in that the surface of the die is coated with a superhard material. be.
本発明を図面に基づいて説明すると、第２図は本発明の
実施態様を示す要部断面図で、（６）は超硬材からなる
ダイ、（１）、（１′）は磁性材からなるヨーク、（２
）、（２′）は非磁性材、（３）は空隙である。To explain the present invention based on the drawings, Fig. 2 is a cross-sectional view of the main part showing an embodiment of the present invention, in which (6) is a die made of carbide material, (1) and (1') are made of magnetic material. Naru York, (2
), (2') are non-magnetic materials, and (3) is an air gap.
本発明に用いられる超硬材としては、クロム・カーバイ
ド、チタン・カーバイド、ニオブ・カーバイド、バナジ
ウム・カーバイド、タングステン・カーバイド、モリブ
デン・カーバイド、クンタル・カーバイドチタン・ナイ
トライド、その他が挙げられる。また、これらの中から
必要に応して耐蝕性の材料を選択することも容易である
。The superhard materials used in the present invention include chromium carbide, titanium carbide, niobium carbide, vanadium carbide, tungsten carbide, molybdenum carbide, quantal carbide titanium nitride, and others. Moreover, it is also easy to select a corrosion-resistant material from these materials as necessary.
本発明に用いられる磁性材は耐摩耗性や、あるいは耐蝕
性を考慮する必要がないので、飽和磁化の大きい磁性材
を使用することが出来、例えば５Ｓ４１、ＳＩ ＱＣ，
５２５Ｃ，５３０Ｃ，５４５Ｃ，５５５Ｃ及び鉄コバル
ト合金（鉄６０％、コバル）４０％を基準として、その
他少量のバナジウムを含むいわゆるパーメンジュール）
、その他を挙げることが出来る。Since the magnetic material used in the present invention does not require consideration of wear resistance or corrosion resistance, magnetic materials with high saturation magnetization can be used, such as 5S41, SI QC,
Based on 525C, 530C, 545C, 555C and iron-cobalt alloy (60% iron, 40% cobal), other so-called permendur containing small amounts of vanadium)
, and others can be mentioned.
本発明に用いられる非磁性材としては５ＬＩ３３０４等
のオーステナイト系ステンレス、銅ベリリウム合金、ハ
イマンガン鋼等が例示される。Examples of the nonmagnetic material used in the present invention include austenitic stainless steel such as 5LI3304, copper beryllium alloy, and high manganese steel.
ダイを構成する超硬材の厚さは余り厚くなると磁気回路
を乱す虞れがあり、また余り薄過ぎると耐摩耗性が不十
分となるので、１０μｍ〜１０ｍの範囲が好適である。If the thickness of the cemented carbide material constituting the die is too thick, there is a risk of disturbing the magnetic circuit, and if it is too thin, the wear resistance will be insufficient, so a range of 10 μm to 10 m is preferable.
該超硬材は該超硬材とは異なる材質のダイ表面に、例え
ばＣＶＤ、ＰＶＤ、イオンブレーティング法等によって
コーティングしてもよく、また、該超硬材であらかじめ
ダイを製作しておき、別途該超硬材とは異なる材質で製
作しておいたダイに挿入固定してもよい。特にコーティ
ングする超硬材としては、ＴｉＣ，ＴｉＮ、、Ｔｉ
（ＣＮ） 、ＴｉＢ、ＺｒＣ，ＺｒＮ、Ｚｒ （ＣＮ）
、ＴａＣ。The superhard material may be coated on the surface of a die made of a material different from the superhard material, for example, by CVD, PVD, ion blating, etc., or the die may be prepared in advance from the superhard material, It may be inserted and fixed into a die made separately from a material different from the carbide material. In particular, the carbide materials to be coated include TiC, TiN, Ti
(CN), TiB, ZrC, ZrN, Zr (CN)
, TaC.
ＴａＢ２、ＴａＮ、Ａｌｚ Ｏ：＋ 、Ｚｒｚ Ｏ＋
、Ｚｒｏｔ 、Ｓ ｉ、 Ｎ３、ＷＣ，、ＮｂＣ，、Ｎ
ｂＮ、その他の中から採用される。TaB2, TaN, Alz O:+, Zrz O+
,Zrot ,S i, N3,WC,,NbC,,N
bN, will be selected from among others.
第３図乃至第５図はそれぞれ本発明の他の実施態様を示
し、（６）（６’）は超硬材からなるダイ、（３）は空
隙である。FIGS. 3 to 5 each show other embodiments of the present invention, in which (6) and (6') are dies made of cemented carbide, and (3) is a void.
本発明に使用される樹脂としては公知のポリマーが用い
られ、例えばＥＶＡ、ポリアミド、ＰＰ、ＰＥ、ＰＶＣ
、アクリル樹脂、メタクリル樹脂、塩素化ポリエチレン
樹脂、ＰＥＴ、ＰＢＴ、ＰＰ５１ポリカーボネート等が
単独又は混合して用いられる。本発明に使用される磁性
粉としてはマグネトプラムバイト型のＳｒ又はＢａフェ
ライト及び希土類金属を含む金属間化合物磁性粉が好適
である。添加剤としては公知のものがその目的に応じて
用いられる。即ち、磁性粉の分散性については使用する
樹脂に応じて適当な表面処理剤が用いられ、例えばシラ
ン系カップリング剤、チタネート系カンプリング剤、ジ
ルコアルミネート系カップリング剤、高級脂肪酸及びそ
の金属塩、フォスフオン酸エステル等がこれに含まれる
。また安定性向上剤、抗酸化剤、紫外線吸収剤、滑剤等
の添加剤もその目的に応じて、また樹脂との関連に応じ
て適宜使用される。Known polymers are used as the resin used in the present invention, such as EVA, polyamide, PP, PE, PVC.
, acrylic resin, methacrylic resin, chlorinated polyethylene resin, PET, PBT, PP51 polycarbonate, etc. may be used alone or in combination. As the magnetic powder used in the present invention, an intermetallic compound magnetic powder containing a magnetoplumbite type Sr or Ba ferrite and a rare earth metal is suitable. Known additives can be used depending on the purpose. That is, for the dispersibility of magnetic powder, an appropriate surface treatment agent is used depending on the resin used, such as silane coupling agents, titanate camping agents, zircoaluminate coupling agents, higher fatty acids and their metals. These include salts, phosphonic acid esters, and the like. Additives such as stability improvers, antioxidants, ultraviolet absorbers, and lubricants are also used as appropriate depending on the purpose and the relationship with the resin.
「実施例」
以下、本発明を実施例に基づいて説明するが、本発明は
これらにより何ら制限されるものではない。"Examples" The present invention will be described below based on Examples, but the present invention is not limited to these in any way.
実施例１−３、比較例１〜２
鐘淵化学製軟質塩ビ「カネビニルコンパウンドＨ１８０
ＭＪに対して、ストロンチウムフェライトを体積含率で
６６％になるように加え、混線機にてペレット化した。Example 1-3, Comparative Examples 1-2 Soft PVC “Kane Vinyl Compound H180” manufactured by Kanebuchi Chemical Co., Ltd.
Strontium ferrite was added to MJ at a volume content of 66%, and pelletized using a mixer.
次いで、第１表に示す材質で作成した磁場配向押出成型
機を用い、該ベレットを約１６０℃で磁場配向押出成形
した。Next, the pellets were magnetically oriented extrusion molded at about 160° C. using a magnetically oriented extrusion molding machine made of the materials shown in Table 1.
ダイ部分の摩耗及び得られた成形体の最大エネルギー積
は第１表に示した通りであった。The abrasion of the die portion and the maximum energy product of the obtained compact were as shown in Table 1.
「作用・効果」
畝上の通り、本発明によればダイの耐摩耗性は大巾に高
められ、従ってダイの耐久性が改善されるとともに、成
形品の寸法安定性が向上する。更にはヨーク材料として
飽和磁化の大きい材料、例えば２００００ガウス以上の
ものも用いることができるので、非常に強い磁場を確保
でき、磁気異方性の大きい、従って（ＢＨ）ｍａｘの大
きい成形体を得ることができる。"Action/Effect" As mentioned above, according to the present invention, the wear resistance of the die is greatly increased, and therefore the durability of the die is improved, and the dimensional stability of the molded product is improved. Furthermore, since it is possible to use a material with a large saturation magnetization, for example, 20,000 Gauss or more, as the yoke material, a very strong magnetic field can be secured, and a molded product with a large magnetic anisotropy and therefore a large (BH)max can be obtained. be able to.
第１図は従来の押出成形機を示す概要図、第２図、第３
図、第４図及び第５図は、それぞれ本発明の押出成形機
の実施態様を示す要部断面図である。
１．１′・・・ヨーク（磁性材）
２．２′・・・非磁性材
３ ・・・空隙
４．４′・・・外部ヨーク
５．５′・・・励磁コイル
６．６′・・・超硬材からなるダイ
第４図
第５図
園擦Ａ・Figure 1 is a schematic diagram showing a conventional extrusion molding machine, Figures 2 and 3
Figures 4 and 5 are sectional views of essential parts, respectively, showing embodiments of the extrusion molding machine of the present invention. 1.1'... Yoke (magnetic material) 2.2'... Non-magnetic material 3... Air gap 4.4'... External yoke 5.5'... Excitation coil 6.6'・Die made of carbide material Figure 4 Figure 5 Garden scraping A・
Claims (1)
する押出成形機において、超硬材からなるダイを用いた
ことを特徴とする磁場配向押出成形機。 ２、超硬材がクロム・カーバイド、チタン・カーバイド
、ニオブ・カーバイド、バナジウム・カーバイド、タン
グステン・カーバイド、モリブデン・カーバイド、タン
タル・カーバイド及びチタン・ナイトライドから選択さ
れる特許請求の範囲第１項記載の成形機。 ３、磁場配向押出成形により磁気異方性樹脂磁石を製造
する押出成形機において、ダイの表面を超硬材で被覆し
たことを特徴とする磁場配向押出成形機。 ４、超硬材がクロム・カーバイド、チタン・カーバイド
、ニオブ・カーバイド、バナジウム・カーバイド、タン
グステン・カーバイド、モリブデン・カーバイド、タン
タル・カーバイド及びチタン・ナイトライドから選択さ
れる特許請求の範囲第３項記載の成形機。[Scope of Claims] 1. A magnetic field oriented extrusion molding machine for producing magnetically anisotropic resin magnets by magnetic field oriented extrusion molding, characterized in that a die made of a superhard material is used. 2. The superhard material is selected from chromium carbide, titanium carbide, niobium carbide, vanadium carbide, tungsten carbide, molybdenum carbide, tantalum carbide, and titanium nitride. molding machine. 3. A magnetically oriented extrusion molding machine for manufacturing magnetically anisotropic resin magnets by magnetically oriented extrusion molding, characterized in that the surface of the die is coated with a superhard material. 4. The cemented carbide is selected from chromium carbide, titanium carbide, niobium carbide, vanadium carbide, tungsten carbide, molybdenum carbide, tantalum carbide, and titanium nitride. molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61240792A JPS6394813A (en) | 1986-10-09 | 1986-10-09 | Magnetic field orientation extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61240792A JPS6394813A (en) | 1986-10-09 | 1986-10-09 | Magnetic field orientation extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6394813A true JPS6394813A (en) | 1988-04-25 |
Family
ID=17064756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61240792A Pending JPS6394813A (en) | 1986-10-09 | 1986-10-09 | Magnetic field orientation extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6394813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0352133U (en) * | 1989-09-27 | 1991-05-21 | ||
| JPH0388722U (en) * | 1989-11-24 | 1991-09-10 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178017A (en) * | 1984-02-25 | 1985-09-12 | Plus Eng Co Ltd | Push out pin excellent in anti-seizing property |
| JPS61143547A (en) * | 1984-12-13 | 1986-07-01 | Kobe Steel Ltd | Cylinder for plastic molding apparatus |
-
1986
- 1986-10-09 JP JP61240792A patent/JPS6394813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178017A (en) * | 1984-02-25 | 1985-09-12 | Plus Eng Co Ltd | Push out pin excellent in anti-seizing property |
| JPS61143547A (en) * | 1984-12-13 | 1986-07-01 | Kobe Steel Ltd | Cylinder for plastic molding apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0352133U (en) * | 1989-09-27 | 1991-05-21 | ||
| JPH0388722U (en) * | 1989-11-24 | 1991-09-10 |
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