JPS62198419A - Mold for resin injection molding - Google Patents
Mold for resin injection moldingInfo
- Publication number
- JPS62198419A JPS62198419A JP3916786A JP3916786A JPS62198419A JP S62198419 A JPS62198419 A JP S62198419A JP 3916786 A JP3916786 A JP 3916786A JP 3916786 A JP3916786 A JP 3916786A JP S62198419 A JPS62198419 A JP S62198419A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- ceramics
- composite material
- metal film
- molds
- 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
- 229920005989 resin Polymers 0.000 title claims description 10
- 239000011347 resin Substances 0.000 title claims description 10
- 238000001746 injection moulding Methods 0.000 title claims description 5
- 239000002184 metal Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000010953 base metal Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 239000004568 cement Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 239000011701 zinc Substances 0.000 abstract description 3
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 239000002075 main ingredient Substances 0.000 abstract 2
- 229910001069 Ti alloy Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/06—Concrete
Abstract
Description
【発明の詳細な説明】
ＬＬＬ立皿■且１
本発明は、加熱溶融した樹脂材を金型内に射出充填し、
冷却硬化させた後、成形品を取出す各工程より成る射出
成形法を実施するために使用される金型に関するもので
ある。[Detailed Description of the Invention] LLL Standing Plate ■1 The present invention involves injecting and filling a heated and melted resin material into a mold,
The present invention relates to a mold used for carrying out an injection molding method, which consists of steps of taking out a molded product after cooling and hardening.
−ゝ び の１Ｊ−
真空成形用金型、あるいはブロー成形用金型として、皮
殻状金属膜を使用したものが知られている。金甲の型彫
込み部として使用されるこの皮殻状金属膜は、下記の電
鋳法、溶射法によって製造される。-1J- 2. Description of the Related Art Molds using a shell-like metal film are known as vacuum molding molds or blow molding molds. This shell-like metal film used as the engraving part of the gold shell is manufactured by the electroforming method and thermal spraying method described below.
（１）電訪法：導電性を付与ザるためにカーボン、水銀
等で表面処理した原型の表面に、電気メッキと同じ原理
で、銅、ニッケル、鉄等の金属を膜状に析出させ、肉厚
２〜３Ｉｌｌ＃Ｉの皮殻状金属膜として取出し、その背
面に、低融点合金、あるいは熱硬化性樹脂を溶場鋳造方
式で複合一体化せしめて補強することにより、型彫込み
部を形成する方法。(1) Electroplating method: Using the same principle as electroplating, metals such as copper, nickel, and iron are deposited in the form of a film on the surface of a prototype that has been surface-treated with carbon, mercury, etc. to impart conductivity. It is taken out as a shell-like metal film with a wall thickness of 2 to 3 Ill#I, and the back surface is reinforced with a low-melting point alloy or thermosetting resin using a melt-field casting method to form a mold-engraved part. How to form.
（２）溶射法：原型の表面に溶融金属（例、Ｚｎ −Ｔ
工合金等の亜鉛系合金）を溶射して金属膜を得る方法で
あり、その丁順を第″１図により説明する。(2) Thermal spraying method: Spraying molten metal (e.g., Zn-T
This is a method of obtaining a metal film by thermally spraying a zinc-based alloy (such as zinc alloy), and its procedure will be explained with reference to FIG. 1.
■原型（木型）０１の表面に、スプレーガン０２を用い
て離型剤（例、ＡｆＪ粉末、ラッカー、シンナを混合比
１：１：４で混合した６の）を塗布する。(2) Apply a mold release agent (eg, No. 6, a mixture of AfJ powder, lacquer, and thinner at a mixing ratio of 1:1:4) to the surface of the master mold (wooden mold) 01 using the spray gun 02.
■離型剤が塗布された原型０１の上に鋳鉄製基体金属０
３を設定する。■ Cast iron base metal 0 is placed on the master mold 01 coated with mold release agent.
Set 3.
■、■溶射ガン０５を用いて、間口０４を有する基体金
属０３の表面、および原型０１の型穴表面に肉厚７〜１
０ｍの溶射金属膜０６を形成した摸、該金屈膜０６と共
に基体金属０３を原型０１から引き離す。■、■ Using the thermal spray gun 05, the surface of the base metal 03 having the frontage 04 and the mold hole surface of the prototype 01 are coated with a thickness of 7 to 1 mm.
After forming the sprayed metal film 06 with a thickness of 0 m, the base metal 03 is separated from the master mold 01 together with the metal film 06.
■基体金属０３に対して一体化された金属膜０６の凹陥
状背面に、低融点合金（例、活字合金）の溶ｉ０７を流
し込んで凝固させて、金属膜０６を背面から支える補強
体とする。■ Pour molten i07 of a low melting point alloy (e.g. type alloy) into the concave back surface of the metal film 06 that is integrated with the base metal 03 and solidify it to form a reinforcing body that supports the metal film 06 from the back surface. .
■基体金属０３の背面よりも突出する補強体０８を、フ
ライス１０９で切削除去する。(2) Cut and remove the reinforcing body 08 that protrudes from the back surface of the base metal 03 using a milling cutter 109.
以上■〜■の１稈で得られた金型と対をなす金型を同様
にして製作し、両者を合せて完成された射出成形用金型
とする。A pair of molds to the molds obtained for one culm in (1) to (2) above are manufactured in the same manner, and the two molds are combined to form a completed injection mold.
斯様な皮殻状金属膜を用いた金型製造法は、原型の形状
を忠実に再現することができ、表面仕上りが良いという
特徴の他、型彫込み部を機械加工で形成する方法に比し
て大幅な経費節減を計り得る利点がある。The mold manufacturing method using such a shell-like metal film can faithfully reproduce the shape of the original mold and has a good surface finish. It has the advantage of being able to significantly reduce costs.
ところが、補強体として使用される低融点合金は熱変形
邑が大きいのみならず耐圧強度が低く、また熱硬化性樹
脂は耐圧強度が低いため、これ等の材料を型内圧力の大
きな（数１１００Ｎ／ｃｉを越える）射出成形用金型に
適用した場合、射出圧力によって金属膜が比較的大きく
変形して損傷を受は易く、耐久性が著しく低かった。However, low melting point alloys used as reinforcing bodies not only have large thermal deformation but also have low pressure resistance, and thermosetting resins have low pressure resistance, so these materials are used under high mold pressure (several 1100 N). When applied to injection molds (exceeding /ci), the metal film was relatively largely deformed by the injection pressure and was easily damaged, resulting in extremely low durability.
ｔ 直す ための一
本発明の目的は、皮殻状金属膜を使用した射出成形用金
型の耐久性を向上させる点にある。An object of the present invention is to improve the durability of an injection mold using a shell-like metal film.
この目的は、ｆｉｌ、ｌ彫込み部として使用される皮殻
状金属膜と、該金属膜を担持する基体金属と、金ＲＨを
背面から支える補強体とを主体部として形成され、対を
成して使用される射出成形用金型において、前記補強体
をセラミックスまたはセラミックスを主成分とする複合
材、で形成することによって達成される。The purpose of this is to form a main body consisting of a shell-like metal film used as the fil and l engravings, a base metal supporting the metal film, and a reinforcing body supporting the gold RH from the back side, forming a pair. This is achieved by forming the reinforcing body from ceramics or a composite material containing ceramics as a main component in an injection mold used as a mold for injection molding.
見」Ｌ旦
以）、第２図に示した本発明の一実施例について説明す
る。An embodiment of the present invention shown in FIG. 2 will now be described.
射出成形用金型ＩＡ、ＩＢは、その一方が固定側金型と
して、他方が移動側金型として、対を成して使用される
。金型１Ａ、ＩＢは、いずれも第１図に示す方法と同様
にして製造されたものであり、鋳鉄製基体金属２Ａ、２
Ｂ （モールド・ベース）と、Ｚｎ −ＴＬ金合金如き
亜鉛系合金で形成された皮殻状溶射金属膜３Ａ、３Ｂと
、該溶射金属膜３Ａ、３Ｂを背面から支えるセメント複
合材製補強体４Ａ、４Ｂとで形成されている。The injection molds IA and IB are used as a pair, with one of them serving as a stationary mold and the other serving as a movable mold. Both molds 1A and IB were manufactured in the same manner as shown in FIG.
B (mold base), shell-like sprayed metal films 3A, 3B made of a zinc-based alloy such as Zn-TL gold alloy, and a reinforcing body 4A made of cement composite material that supports the sprayed metal films 3A, 3B from the back side. , 4B.
補強体４Ａ、４Ｂを形成するためのセメント複合材とし
ては、一般に知られているコンクリートの他、特に高い
圧縮強度を有するｏｅｎｓ ｔ ｔＨＥＴＡＲＯＣに（
商標名：電気化学工業■製）が好適に使用される。As the cement composite material for forming the reinforcing bodies 4A and 4B, in addition to the generally known concrete, there is also a cement composite material that has a particularly high compressive strength.
Trade name: Denki Kagaku Kogyo ■) is preferably used.
次表は、一般コンクリ−１〜、ＤｅｎＳｉｔ ＨＦＴＡ
ＩＩＯＣに、および鉄の圧縮強度を示したものである。The following table shows general concrete 1~, DenSit HFTA
IIOC and the compressive strength of iron.
金型１Ａ、１Ｂは前記の様に構成されており、補強体４
Ａ、４Ｂをセメント複合材で形成したため、補強体を低
融点合金、あるいは熱硬化性樹脂で形成する場合に比し
て、その製造を容易に行うことができ、型彫込み部を機
械加工によって形成する場合に比して簡易に得ることの
できる溶射金属膜３Ａ、３Ｂを用いたこととも相俟って
、十分低廉な経費で該金型１Ａ、ＩＢを製造することが
可能である。The molds 1A and 1B are constructed as described above, and the reinforcing body 4
Since A and 4B are made of a cement composite material, they can be manufactured more easily than when the reinforcing body is made of a low melting point alloy or a thermosetting resin, and the molded parts can be formed by machining. Coupled with the use of the thermally sprayed metal films 3A and 3B, which can be obtained more easily than in the case of forming the molds 1A and IB, it is possible to manufacture the molds 1A and IB at a sufficiently low cost.
また、セメント複合材製補強体４Ａ、４Ｂは、その耐圧
強度が十分大きいため、射出圧力によって金属膜３Ａ、
３Ｂに過度の変形が生ずることはなく、金属１！１３Ａ
、３Ｂの耐久性が大幅に向上する。In addition, since the cement composite reinforcing bodies 4A and 4B have sufficiently high pressure strength, the metal membrane 3A and 4B are
3B does not undergo excessive deformation, and metal 1!13A
, the durability of 3B is greatly improved.
なお、本実施例では、補強体４Ａ、４Ｂをセメント複合
材で形成したが、セメントに限らす：他の高耐圧強度の
セラミックスを用いても良く、例えばセラミックス粉末
を樹脂製結合剤（バインダ４≠・）で硬めたものを用い
ることができる。In this embodiment, the reinforcing bodies 4A and 4B are made of a cement composite material, but the material is limited to cement. Other ceramics with high pressure resistance may also be used. For example, ceramic powder is mixed with a resin binder (binder 4 ≠・) can be used.
免立立１皿
以上の説明から明らかな様に、本発明の樹脂射出成形用
金型では、皮殻状金属をその背面から支える補強体をセ
ラミックスまたはヒラミックスを主成分とする複合材で
形成したため、機械加工によって型彫込み部を形成した
金型に比して、製造経費が十分低廉であり、耐圧強度の
大きなセラミックスまたはセラミックスを主成分とする
複合材製補強体で支えられた金属膜の射出圧力による変
形が少なく（それ故、損傷を受けＭ＜”）、ｋ４久性が
極めて良好である。As is clear from the explanation of the free standing plate or more, in the resin injection mold of the present invention, the reinforcing body that supports the shell-like metal from the back is formed of a composite material mainly composed of ceramics or Hiramix. Therefore, compared to molds with carved parts formed by machining, manufacturing costs are sufficiently low, and metal membranes supported by reinforcements made of ceramics or composite materials mainly composed of ceramics with high pressure resistance are used. There is little deformation due to the injection pressure (therefore, there is no damage M<''), and the k4 durability is extremely good.
第１図は皮殻状溶射金属膜を用いた公知に係る樹脂射出
成形用金型の製造手順を示す工程図、第２図は本発明の
一実施例に係る樹脂射出成形用金型の断面図である。
１Ａ、ＩＢ・・・金型、２Ａ、２Ｂ・・・基体金属、３
Ａ。
３Ｂ・・・溶射金属膜、４Ａ、４Ｂ・・・補強体。Fig. 1 is a process diagram showing the manufacturing procedure of a known resin injection mold using a shell-like sprayed metal film, and Fig. 2 is a cross section of a resin injection mold according to an embodiment of the present invention. It is a diagram. 1A, IB... Mold, 2A, 2B... Base metal, 3
A. 3B... thermal sprayed metal film, 4A, 4B... reinforcing body.
Claims (1)
を担持する基体金属と、金属膜を背面から支える補強体
とを主体部として形成され、対を成して使用される射出
成形用金型において、前記補強体がセラミックスまたは
セラミックスを主成分とする複合材で形成されているこ
とを特徴とする樹脂射出成形用金型。An injection molding machine that is formed as a main body consisting of a shell-like metal film used as a mold engraving part, a base metal that supports the metal film, and a reinforcing body that supports the metal film from the back, and is used in pairs. 1. A mold for resin injection molding, wherein the reinforcing body is made of ceramic or a composite material containing ceramic as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3916786A JPS62198419A (en) | 1986-02-26 | 1986-02-26 | Mold for resin injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3916786A JPS62198419A (en) | 1986-02-26 | 1986-02-26 | Mold for resin injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62198419A true JPS62198419A (en) | 1987-09-02 |
Family
ID=12545559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3916786A Pending JPS62198419A (en) | 1986-02-26 | 1986-02-26 | Mold for resin injection molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62198419A (en) |
-
1986
- 1986-02-26 JP JP3916786A patent/JPS62198419A/en active Pending
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