JPH0592434A - Surface treatment of mold for resin molding - Google Patents
Surface treatment of mold for resin moldingInfo
- Publication number
- JPH0592434A JPH0592434A JP12822191A JP12822191A JPH0592434A JP H0592434 A JPH0592434 A JP H0592434A JP 12822191 A JP12822191 A JP 12822191A JP 12822191 A JP12822191 A JP 12822191A JP H0592434 A JPH0592434 A JP H0592434A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- mold
- film
- molding
- treatment
- 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
Landscapes
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は樹脂成形用型の表面処理
方法の改良に関するものである。さらに詳しくいえば、
本発明は、耐食性、耐摩耗性、耐熱性、離型性及び樹脂
付着防止性などに優れた樹脂成形用型を得るための樹脂
成形用型の表面処理方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a surface treatment method for a resin molding die. More specifically,
TECHNICAL FIELD The present invention relates to a surface treatment method of a resin molding die for obtaining a resin molding die having excellent corrosion resistance, abrasion resistance, heat resistance, mold releasability, and resin adhesion preventing property.
【0002】[0002]
【従来の技術】合成樹脂は、一般に硬さや柔軟性を適度
に有する、比較的耐熱性が良好で、かつ燃えにくい、耐
水性、耐薬品性、耐候性に優れる、電気的に絶縁性に富
む、軽量で錆が発生しない、成形加工性に優れ、かつ着
色も自由で透明のものが得られ、外観が美麗である、な
どの特徴を有することから、工業材料として種々の分野
において幅広く用いられている。2. Description of the Related Art Synthetic resins generally have appropriate hardness and flexibility, have relatively good heat resistance and are difficult to burn, have excellent water resistance, chemical resistance, and weather resistance, and are highly electrically insulating. It is widely used in various fields as an industrial material because of its features such as: light weight, no rust, excellent moldability, free coloring, transparent product, and beautiful appearance. ing.
【0003】また、近年、合成樹脂製品においては高精
密化や高機能化が要求され、成形用型も複雑化してきて
おり、そのため製作費が高くつき、型の寿命が樹脂製品
のコストに大きく影響を及ぼすようになってきている。In recent years, synthetic resin products are required to be highly precise and highly functional, and molding dies are becoming more complicated. Therefore, the manufacturing cost is high and the life of the dies is large for the cost of the resin products. It is starting to have an impact.
【0004】現在多く利用されている樹脂は型に対する
付着性や腐食性が強く、かつ強度や機能を向上させる目
的で、硬質の炭化ケイ素やガラスファイバーなどが混入
されるなど、型の損耗を激しくする要因が多く、そのま
までは型の寿命が短いために、通常型になんらかの表面
処理が施されている。例えば付着力の強い高粘度のエボ
キシ樹脂、ポリブタジエン樹脂、ウレタン樹脂などのコ
ンパウンドを成形する場合には、一般に型にシリコーン
系やフッ素系などの離型剤を塗布するなどの手段がとら
れている。そして、これらの離型剤はその特性として低
エネルギー表面を形成するが、型材に対する密着性に劣
り、そのため、型材表面に該離型剤を強固に密着させる
目的で、通常型材表面にシランカップリング剤による処
理などを施したのち、該離型剤が塗布されている。[0004] Resins which are widely used at present have strong adhesion and corrosiveness to molds, and hard silicon carbide and glass fibers are mixed therein for the purpose of improving strength and function, resulting in severe wear of the molds. There are many factors that cause the mold to have a short life, and therefore the surface of the mold is usually subjected to some kind of surface treatment. For example, when molding a compound of highly viscous epoxy resin, polybutadiene resin, urethane resin, etc., which has a strong adhesive force, it is common practice to apply a mold release agent such as silicone or fluorine to the mold. . And, these release agents form a low energy surface as their property, but have poor adhesion to the mold material, and therefore, for the purpose of firmly adhering the mold release agent to the mold material surface, silane coupling is usually applied to the mold material surface. The release agent is applied after treatment with the agent.
【0005】しかしながら、このような表面処理方法に
おいては、離型性や樹脂の付着防止性は必ずしも満足し
うるものではなく、しかも耐摩耗性、耐食性、耐熱性な
ども十分ではないという欠点がある。However, in such a surface treatment method, the releasability and the resin adhesion preventive property are not always satisfactory, and further, the abrasion resistance, the corrosion resistance and the heat resistance are not sufficient. .
【0006】[0006]
【発明が解決しようとする課題】本発明はこのような従
来の樹脂成形用型の表面処理方法が有する欠点を克服
し、離型性や樹脂の付着防止性に優れる上、耐食性、耐
摩耗性、耐熱性などが良好な高寿命の樹脂成形用型を提
供することを目的としてなされたものである。DISCLOSURE OF THE INVENTION The present invention overcomes the drawbacks of the conventional surface treatment methods for resin molding dies, and is excellent in mold releasability and resin adhesion preventing property, as well as in corrosion resistance and abrasion resistance. The purpose of the present invention is to provide a long-life resin molding die having good heat resistance and the like.
【0007】[0007]
【課題を解決するための手段】本発明者は離型性や樹脂
の付着防止性に優れる高寿命の樹脂成形用型について鋭
意研究を重ねた結果、樹脂成形用型の表面に、まず型材
より硬質の皮膜を形成させたのち、この皮膜に特定の処
理を施し、次いで表面低エネルギー樹脂の被覆層を設け
ることにより、前記目的を達成しうることを見い出し、
この知見に基づいて本発明を完成するに至った。Means for Solving the Problems The present inventor has conducted earnest research on a long-life resin molding die which is excellent in mold releasability and resin adhesion preventing property. After forming a hard coating, the coating is subjected to a specific treatment, and then by providing a coating layer of a surface low energy resin, it is found that the above object can be achieved,
The present invention has been completed based on this finding.
【0008】すなわち、本発明は、樹脂成形用型の表面
に型材より硬質の皮膜を形成させ、この皮膜に場合によ
り化成処理を施したのち、シランカップリング剤による
処理を施し、次いで表面低エネルギー樹脂の被覆層を設
けることを特徴とする樹脂成形用型の表面処理方法を提
供するものである。That is, according to the present invention, a film harder than a mold material is formed on the surface of a resin molding die, the film is optionally subjected to a chemical conversion treatment, a treatment with a silane coupling agent, and then a surface low energy treatment. The present invention provides a method for surface treatment of a resin molding die, which is characterized by providing a resin coating layer.
【0009】本発明方法においては、樹脂成形用型の表
面に、まず、型材より硬質の皮膜を形成させることが必
要である。この硬質皮膜の材料としては、例えばニッケ
ル、クロム、モリブデン、タングステンなどの金属又は
これらの合金、ニッケル−リン、鉄−リン、コバルト−
リンなどの複合材、さらには窒化チタンなどの金属セラ
ミックスなどが挙げられる。In the method of the present invention, it is necessary to first form a film harder than the mold material on the surface of the resin molding mold. Examples of the material of this hard coating include metals such as nickel, chromium, molybdenum, and tungsten or alloys thereof, nickel-phosphorus, iron-phosphorus, cobalt-
Examples thereof include composite materials such as phosphorus, and metal ceramics such as titanium nitride.
【0010】これらの硬質材料から成る皮膜の形成方法
については特に制限はなく、公知の方法、例えば電解め
っき法、無電解めっき法、真空蒸着法、スパッタリング
法、イオンプレーディング法、CVD法などの中から、
使用する材料に応じて適宜選び用いることができる。こ
の皮膜の厚さは、通常数μm〜数100μmの範囲で選
ばれる。There is no particular limitation on the method of forming the film made of these hard materials, and known methods such as electrolytic plating method, electroless plating method, vacuum deposition method, sputtering method, ion plating method and CVD method can be used. From the inside
It can be appropriately selected and used according to the material to be used. The thickness of this film is usually selected in the range of several μm to several 100 μm.
【0011】本発明方法においては、このようにして形
成された硬質皮膜に、まず場合により化成処理が施され
る。この化成処理方法としては、従来公知の方法、例え
ばリン酸塩、クロメート又はこれらの複合剤による処理
方法、あるいは黒色クロムめっき処理方法などを用いる
ことができる。次に、シランカップリング剤による処理
が施されるが、このシランカップリング剤としては、例
えばメチルトリメトキシシラン、ビニルトリエトキシシ
ラン、ビニルトリス(β−メトキシエトキシ)シラン、
γ−メタクリロキシプロピルトリメトキシシラン、γ−
グリシドキシプロピルトリメトキシシラン、β−(3,
4−エポキシシクロヘキシル)エチルトリメトキシシラ
ン、N−β−(アミノエチル)γ−アミノプロピルトリ
メトキシシラン、N−β−(アミノエチル)γ−アミノ
プロピルメチルジメトキシシラン、γ−アミノプロピル
トリエトキシシラン、N−フェニル−γ−アミノプロピ
ルトリメトキシシラン、γ−メルカプトプロピルトリメ
トキシシラン、γ−クロロプロピルトリメトキシシラ
ン、さらにはパーフルオロアルキル官能シランなどが挙
げられる。これらのシランカップリング剤は1種用いて
もよいし、2種以上を組み合わせて用いてもよい。In the method of the present invention, the hard coating thus formed is first subjected to chemical conversion treatment, if necessary. As the chemical conversion treatment method, a conventionally known method, for example, a treatment method with a phosphate, a chromate or a composite agent thereof, a black chrome plating treatment method, or the like can be used. Next, a treatment with a silane coupling agent is performed. Examples of the silane coupling agent include methyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane,
γ-methacryloxypropyltrimethoxysilane, γ-
Glycidoxypropyltrimethoxysilane, β- (3,
4-epoxycyclohexyl) ethyltrimethoxysilane, N-β- (aminoethyl) γ-aminopropyltrimethoxysilane, N-β- (aminoethyl) γ-aminopropylmethyldimethoxysilane, γ-aminopropyltriethoxysilane, Examples thereof include N-phenyl-γ-aminopropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane, and further perfluoroalkyl functional silane. These silane coupling agents may be used alone or in combination of two or more.
【0012】本発明方法においては、これらのシランカ
ップリング剤により処理を施したのち、表面低エネルギ
ー樹脂から成る被覆層を形成する。この表面低エネルギ
ー樹脂としては、耐摩耗性、耐食性、耐熱性などに優れ
る点から、例えば四フッ化エチレン樹脂、四フッ化エチ
レン−六フッ化プロピレン共重合樹脂、フッ化黒鉛樹脂
[(CF)n,(C2F2)nなど]などが好ましく用
いられ、これらは1種用いてもよいし、2種以上を組み
合わせて用いてもよい。In the method of the present invention, after treatment with these silane coupling agents, a coating layer made of low surface energy resin is formed. The surface low energy resin is, for example, tetrafluoroethylene resin, tetrafluoroethylene-hexafluoropropylene copolymer resin, fluorinated graphite resin [(CF)] from the viewpoint of excellent wear resistance, corrosion resistance, heat resistance and the like. n, (C 2 F 2 ) n] and the like are preferably used, and these may be used alone or in combination of two or more.
【0013】この表面低エネルギー樹脂から成る被覆層
を形成させる方法については特に制限はなく、従来公知
の方法の中から使用する樹脂の種類に応じて適宜選ば
れ、例えば前記のフッ素系樹脂を用いる場合には、通常
粉末ライニング法、例えば粉末溶射法、粉末流動浸せき
法、浸せき焼着法などが用いられる。また、この被覆層
は単層構造であってもよいし、多層構造であってもよ
く、使用目的に応じて適宜選ばれる。多層構造の被覆層
を形成させる場合は、例えば前記のようにしてシランカ
ップリング剤による処理を施したのち、該樹脂から成る
第1の被覆層を前記の方法により形成させ、次いでこれ
にシランカップリング剤による処理を施したのち、同様
にして第2の被覆層を形成させ、これを所望回数繰り返
すことにより、多層構造とすることができる。The method for forming the coating layer made of this low surface energy resin is not particularly limited, and is appropriately selected from conventionally known methods depending on the type of resin used, and for example, the above-mentioned fluorine-based resin is used. In this case, a powder lining method, for example, a powder spraying method, a powder fluidized dipping method, a dip baking method, or the like is usually used. The coating layer may have a single-layer structure or a multi-layer structure, and is appropriately selected according to the purpose of use. When a coating layer having a multi-layer structure is formed, for example, after the treatment with a silane coupling agent is performed as described above, the first coating layer made of the resin is formed by the method described above, and then the silane coupling agent is formed on the first coating layer. After the treatment with the ring agent is performed, the second coating layer is formed in the same manner, and this is repeated a desired number of times to form a multilayer structure.
【0014】このようにして形成された表面低エネルギ
ー樹脂から成る被覆層の厚さは、通常数μm〜数100
0μmの範囲で選ばれる。The thickness of the coating layer formed of the low surface energy resin thus formed is usually several μm to several hundreds.
It is selected in the range of 0 μm.
【0015】[0015]
【発明の効果】本発明によると、離型性や樹脂の付着防
止性に優れる上、耐食性、耐摩耗性、耐熱性などの良好
な高寿命の樹脂成形用型が得られる。EFFECTS OF THE INVENTION According to the present invention, a resin molding die having excellent mold releasability and resin adhesion-preventing property and having excellent corrosion resistance, abrasion resistance, heat resistance and the like can be obtained.
【0016】[0016]
【実施例】次に実施例により本発明をさらに詳細に説明
するが、本発明はこれらの例によってなんら限定される
ものではない。The present invention will be described in more detail by way of examples, which should not be construed as limiting the invention thereto.
【0017】実施例1 金型用成形材料のSKD11材に、イオンプレーティン
グにより、窒化チタンから成る厚さ1〜2μmの硬質皮
膜を形成させた。エポキシ系樹脂を溶融状態でその表面
に滴下させ、その付着強度を求めたところ、5kg/c
m2以上であり、また、樹脂のむくれ現象が認められ
た。なお、窒化チタンの硬質皮膜を形成させる前のSK
D11材との付着強度は同様に5kg/cm2以上であ
った。Example 1 A hard coating having a thickness of 1 to 2 μm made of titanium nitride was formed on SKD11 material, which is a molding material for molds, by ion plating. The epoxy resin was dropped onto the surface in a molten state, and the adhesion strength was determined to be 5 kg / c.
m 2 or more, and a resin swelling phenomenon was observed. SK before forming a hard film of titanium nitride
Similarly, the adhesion strength with the D11 material was 5 kg / cm 2 or more.
【0018】次いで、前記窒化チタン皮膜をメチルメト
キシシランで処理したのち、同様に付着強度を求めたと
ころ、600g/cm2を示し、ややその値が低下し
た。Then, the titanium nitride film was treated with methylmethoxysilane, and the adhesion strength was similarly measured. As a result, it was 600 g / cm 2 , and the value was slightly lowered.
【0019】さらに、パーフルオロアルキル官能シラン
を用いて、四フッ化エチレン樹脂を焼付け厚さ50μm
の被覆層を形成させ、同様に付着強度を求めたところ、
20g/cm2の値を示し、付着強度はさらに低下し
た。Further, using a perfluoroalkyl functional silane, a tetrafluoroethylene resin is baked to a thickness of 50 μm.
When the coating strength of the coating layer of
The value was 20 g / cm 2 , and the adhesive strength was further reduced.
【0020】次に、このものについて繰り返し付着性を
調べたところ、200回繰り返しても付着強度はほぼ同
様の値を示し、離型樹脂の表面も良好で優れた付着防止
性を示した。Next, when the adhesive property of this product was repeatedly examined, the adhesive strength showed almost the same value even after repeating 200 times, and the surface of the release resin was also good and showed excellent anti-adhesive property.
【0021】この性能は、硬質皮膜として、窒化チタン
皮膜の代りにNi−P,Ni−Co,Fe−P,Co−
P及びCrのそれぞれの皮膜を電解めっき法、無電解め
っき法で設けたもの、上述のそれぞれの皮膜を蒸着法で
設けたもの、Mo及びWそれぞれの皮膜をCVD法で設
けたものについても前記と同様な効果を示した。This performance is obtained by using Ni--P, Ni--Co, Fe--P, Co-- as a hard coating instead of the titanium nitride coating.
The P and Cr coatings provided by the electrolytic plating method and the electroless plating method, the above coatings provided by the vapor deposition method, and the Mo and W coatings provided by the CVD method are also described above. It showed the same effect as.
【0022】実施例2 型材として、精密化に有効で、実用されている電鋳材料
について、化成処理の有無による樹脂との付着強度を求
めた。Example 2 As a mold material, an electroformed material which is effective in refinement and which is in practical use was evaluated for adhesion strength with a resin depending on the presence or absence of chemical conversion treatment.
【0023】電鋳材としては、多用されている硬質Ni
−Co皮膜(Hv約500)を厚さ500μmに形成さ
せたものに更に1μmのCrめっきを施し、かつ実施例
1と同様にエポキシ系樹脂を用いて付着強度を求めた。Hard Ni, which is widely used as an electroformed material,
A Co film (Hv of about 500) having a thickness of 500 μm was further plated with 1 μm of Cr, and the adhesive strength was determined using an epoxy resin as in Example 1.
【0024】Ni−Co合金めっきにCrめっきした皮
膜は付着強度は5kg/cm2以上であり、また、この
皮膜に、実用亜鉛用やアルミニウム用のクロメート、リ
ン酸−クロム酸塩、リン酸亜鉛をそれぞれ用いて化成処
理を施したものは、いずれも1kg/cm2の付着強度
を示し、若干の低下が認められたが、数回の繰り返しで
皮膜の剥離が認められた。また、樹脂剥離面はいずれも
むしり取られた状態が観察された。The Ni-Co alloy plating film plated with Cr has an adhesion strength of 5 kg / cm 2 or more, and this film also has chromate for practical zinc or aluminum, phosphoric acid-chromate, zinc phosphate. Each of the samples subjected to the chemical conversion treatment showed a bond strength of 1 kg / cm 2 , and a slight decrease was observed, but peeling of the film was observed after repeating several times. Further, it was observed that the resin peeled surface was peeled off.
【0025】次に、前記の化成処理したものにシランカ
ップリング剤のオクタデシルシラン処理を施したもの
は、いずれも600g/cm2程度の付着強度を示し、
また繰り返しが50回程度までは離型樹脂表面も良好で
あったが、それ以上の回数では、化成皮膜の一部が樹脂
面に付着するのが認められた。Next, each of the above-mentioned chemical conversion-treated and octadecylsilane-containing silane coupling agent shows an adhesion strength of about 600 g / cm 2 .
The surface of the release resin was also good up to about 50 times, but it was confirmed that a part of the chemical conversion film adhered to the resin surface after the repetition was repeated up to about 50 times.
【0026】さらに、このシランカップリング剤処理し
たものに、四フッ化エチレン−六フッ化プロピレン共重
合樹脂を焼付け、厚さ500μmの被覆層を設けたもの
は、20g/cm2の付着強度を示し、著しい低下が認
められた。Further, this silane coupling agent-treated product was baked with a tetrafluoroethylene-hexafluoropropylene copolymer resin and provided with a coating layer having a thickness of 500 μm, and an adhesive strength of 20 g / cm 2 was obtained. , And a remarkable decrease was observed.
【0027】また、このものについて、繰り返し付着防
止性を求めたところ、実施例1と同様に200回以上で
もその性能の低下はなく、約500回程度で400g/
cm2の付着強度を示し、コーティング皮膜の特性が失
われた。Further, when the anti-adhesion property was repeatedly determined for this product, the performance did not deteriorate even after 200 times or more as in Example 1, and about 400 g / 400 g
It showed an adhesion strength of cm 2 and lost the properties of the coating film.
【0028】この原因について調べたところ、コーティ
ング皮膜が薄くなっていることが確認されたので、この
皮膜に前記と同様のシランカップリング剤による処理を
施したのち、エチレン−六フッ化プロピレン共重合樹脂
の皮膜を設けて、2層から成る厚さ1000μmの皮膜
を形成させ、その付着防止性を求めたところ、1000
回繰り返しても付着防止性の低下は認められず、離型樹
脂表面も良好であった。As a result of investigating the cause, it was confirmed that the coating film was thin. Therefore, after the film was treated with the same silane coupling agent as described above, ethylene-hexafluoropropylene copolymerization was carried out. When a resin film was formed to form a film having a thickness of 1000 μm and the anti-adhesion property thereof was calculated,
No decrease in adhesion preventive property was observed even after repeated times, and the release resin surface was also good.
【0029】実施例3 SKD11材に厚さ10μmのNi−Co皮膜を設けた
のち、その表面に黒色クロムめっき処理を電解法で施
し、さらにシランカップリング剤のオクタデシルシラン
による処理を施し、次いで厚さ500μmのフッ化黒鉛
樹脂皮膜を焼付法で設けた。Example 3 A SKD11 material was provided with a Ni—Co film having a thickness of 10 μm, black chrome plating was applied to the surface by electrolysis, and treatment with octadecylsilane as a silane coupling agent was performed. A fluorinated graphite resin film having a thickness of 500 μm was provided by a baking method.
【0030】このものについて、エポキシ系樹脂の付着
強度を求めたところ、約800回まで20g/cm2の
低付着強度を示し、離型樹脂表面も良好であった。ま
た、黒色めっき皮膜そのものはシランカップリング剤的
効果があり、フッ化黒鉛樹脂や四フッ化エチレン樹脂、
四フッ化エチレン−六フッ化プロピレン共重合樹脂と懸
架作用を有し、密着性があるが、表面処理効果を十分に
発揮させるには、シランカップリング剤による処理を行
うことが必要である。When the adhesive strength of the epoxy resin was determined for this product, it showed a low adhesive strength of 20 g / cm 2 up to about 800 times, and the release resin surface was also good. In addition, the black plating film itself has the effect of a silane coupling agent, such as fluorinated graphite resin or tetrafluoroethylene resin,
Although it has a suspending action with the tetrafluoroethylene-hexafluoropropylene copolymer resin and has adhesiveness, it is necessary to perform treatment with a silane coupling agent in order to sufficiently exert the surface treatment effect.
【0031】また、これらの処理を施さないNi−Co
皮膜の付着強度は実施例2の場合と同じく、約5kg/
cm2の高い値を示し、しかも離型樹脂表面はむしり取
られた痕跡が認められた。Further, Ni-Co which has not been subjected to these treatments
The adhesive strength of the film is about 5 kg / similar to that of Example 2.
It showed a high value of cm 2 , and the trace of peeling off the release resin surface was recognized.
【0032】なお、黒色クロムめっき皮膜はNi−Co
皮膜の表面上に金属クロム層、次いでmCrO3・nC
rO3・xH2Oの酸化物層、さらに最上部は通常のク
ロメートに類似した層から構成され、耐食性に優れたも
のである。The black chrome plating film is Ni-Co.
Metal chrome layer on the surface of the coating, then mCrO 3 · nC
The oxide layer of rO 3 .xH 2 O, and the uppermost layer is composed of a layer similar to ordinary chromate, and has excellent corrosion resistance.
【0033】このように、耐食性に優れた皮膜をあらか
じめ設け、さらに表面低エネルギーの樹脂から成る被覆
層を設けたものは、母材の耐食性改善には著しく有効で
あった。As described above, the film having the excellent corrosion resistance previously provided with the coating layer made of the resin having the low surface energy was remarkably effective in improving the corrosion resistance of the base material.
Claims (2)
膜を形成させ、この皮膜に場合により化成処理を施した
のち、シランカップリング剤による処理を施し、次いで
表面低エネルギー樹脂の被覆層を設けることを特徴とす
る樹脂成形用型の表面処理方法。1. A resin-molding die has a surface on which a film harder than a mold material is formed, and the film is subjected to a chemical conversion treatment, optionally a silane coupling agent, and then a surface low energy resin coating layer. A surface treatment method for a resin molding die, comprising:
樹脂、四フッ化エチレン−六フッ化プロピレン共重合樹
脂及びフッ化黒鉛樹脂の中から選ばれた少なくとも1種
である請求項1記載の樹脂成形用型の表面処理方法。2. The resin according to claim 1, wherein the low surface energy resin is at least one selected from tetrafluoroethylene resin, tetrafluoroethylene-hexafluoropropylene copolymer resin and fluorinated graphite resin. Surface treatment method for molding die.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03128221A JP3124785B2 (en) | 1991-05-02 | 1991-05-02 | Surface treatment method for resin mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03128221A JP3124785B2 (en) | 1991-05-02 | 1991-05-02 | Surface treatment method for resin mold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0592434A true JPH0592434A (en) | 1993-04-16 |
JP3124785B2 JP3124785B2 (en) | 2001-01-15 |
Family
ID=14979495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03128221A Expired - Lifetime JP3124785B2 (en) | 1991-05-02 | 1991-05-02 | Surface treatment method for resin mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3124785B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996014200A1 (en) * | 1994-11-07 | 1996-05-17 | Mark Alexander Jenkins | Method of manufacturing resilient tubing |
WO2009069594A1 (en) * | 2007-11-30 | 2009-06-04 | Zeon Corporation | Method for electrophotographic image formation |
-
1991
- 1991-05-02 JP JP03128221A patent/JP3124785B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996014200A1 (en) * | 1994-11-07 | 1996-05-17 | Mark Alexander Jenkins | Method of manufacturing resilient tubing |
GB2309005A (en) * | 1994-11-07 | 1997-07-16 | Mark Alexander Jenkins | Method of manufacturing resilient tubing |
GB2309005B (en) * | 1994-11-07 | 1998-06-17 | Mark Alexander Jenkins | Manufacture of resilient corrugated or convoluted tubing |
WO2009069594A1 (en) * | 2007-11-30 | 2009-06-04 | Zeon Corporation | Method for electrophotographic image formation |
Also Published As
Publication number | Publication date |
---|---|
JP3124785B2 (en) | 2001-01-15 |
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