JPH079071B2 - Partially plated plastic moldings - Google Patents
Partially plated plastic moldingsInfo
- Publication number
- JPH079071B2 JPH079071B2 JP2191005A JP19100590A JPH079071B2 JP H079071 B2 JPH079071 B2 JP H079071B2 JP 2191005 A JP2191005 A JP 2191005A JP 19100590 A JP19100590 A JP 19100590A JP H079071 B2 JPH079071 B2 JP H079071B2
- Authority
- JP
- Japan
- Prior art keywords
- plating
- good
- plated
- difficult
- molded product
- 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 - Lifetime
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は部分的にメッキされたプラスチック成形品、
例えば部分的にメッキされた自動車用ウインドモールに
関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field This invention relates to partially plated plastic moldings,
For example, it relates to a partially plated automotive wind molding.
［従来の技術］ 最近ではプラスチック成形品の表面の一部に金属光沢を
付与して意匠効果を向上させたプラスチック成形品が多
用され、とくに自動車用ウインドモールにおいては部分
的に金属光沢を有するウインドモールか不可欠となって
いる。[Prior Art] Recently, plastic moldings that have a metallic luster on a part of the surface of the plastic molding to improve the design effect are often used. Especially, a window having a partial metallic luster in an automobile window molding. Malls have become essential.
部分的に金属光沢を有するプラスチック成形品のうち、
押出成形されたプラスチック成形品は一般にプラスチッ
ク材と金属箔乃至金属蒸着フィルムとを同時に押出成形
して作成される。Among the plastic molded products that have a metallic luster partially,
An extrusion-molded plastic molded product is generally produced by simultaneously extrusion-molding a plastic material and a metal foil or a metal vapor deposition film.
なお、従来の技術としては例えば特開昭55−36270号公
報、特開昭56−112939号公報がある。As conventional techniques, there are, for example, JP-A-55-36270 and JP-A-56-112939.
［発明が解決しようとする課題］ 金属箔乃至金属蒸着フィルムとプラスチック材とが複合
されたプラスチック成形品では金属膜の剛性が大きい場
合には成形品の曲げ加工が困難となる問題点や、曲げ角
度を大きくすると金属膜が白化したり、破損したり、亀
裂が起生するので曲げ変形可能な曲げ角度が制限されて
曲げ形状が制約される問題点がある。[Problems to be Solved by the Invention] In a plastic molded product in which a metal foil or a metal vapor-deposited film and a plastic material are compounded, when the rigidity of the metal film is large, it is difficult to bend the molded product. When the angle is increased, the metal film is whitened, broken, or cracks occur, so that the bending angle at which bending deformation is possible is limited and the bending shape is restricted.
本発明は上記問題点を解消することを課題とするもので
ある。The present invention aims to solve the above problems.
［課題を解決するための手段］ 本発明のプラスチック成形品はメッキ処理し易い良メッ
キ処理性プラスチック材を押出成形して形成された良メ
ッキ処理部と、メッキ処理し難い難メッキ処理性プラス
チック材を押出成形して形成された難メッキ処理部と
が、前記良メッキ処理部の一部が露出された状態で断面
方向において接合され、前記良メッキ処理部の露出面に
は押出成形品の曲げ加工後のメッキ処理によって形成さ
れたメッキ層が被覆された構成を有する。[Means for Solving the Problems] The plastic molded article of the present invention is a good plating treatment part formed by extrusion-molding a good plating treatment plastic material that is easy to plate, and a difficult plating treatment plastic material that is difficult to plate. And a difficult-plated portion formed by extrusion molding are joined in the cross-sectional direction with a part of the good-plated portion exposed, and the exposed surface of the good-plated portion is bent into an extruded product. It has a configuration in which a plating layer formed by a plating process after processing is covered.
［作 用］ メッキ処理し易い良メッキ処理性プラスチックで形成さ
れた良メッキ処理部と、メッキ処理し難い難メッキ処理
性プラスチック材で形成された難メッキ処理部とが断面
方向において接合されかつ前記良メッキ処理部の一部が
露出された押出成形品を成形し、この押出成形品を曲げ
加工してから、曲げ加工された中間成形品をメッキ処理
して前記良メッキ処理部の露出面のみにメッキ層を被覆
する。[Operation] A good plating treatment part formed of a good plating treatment plastic that is easy to perform a plating treatment and a difficult plating treatment portion formed of a difficult plating treatment plastic material that is difficult to perform a plating treatment are joined in the cross-sectional direction, and Only the exposed surface of the good-plated part is formed by molding an extruded product with a part of the good-plated part exposed and bending the extruded product and then plating the intermediate product that has been bent The plating layer is coated on.
［発明の効果］ 本発明は前記したように構成してあるので、メッキ層を
曲げ加工された中間成形品のメッキ処理によって形成す
ることができ、メッキ処理する以前の段階で押出成形品
を曲げ加工するので、押出成形品を曲げ変形させたとき
の自由度の大幅に拡張して広範囲にわたる曲げ形状を有
するプラスチック成形品の作成が可能となり、金属膜の
白化や、破損や亀裂の発生等の品質低下を排除すること
ができる。EFFECTS OF THE INVENTION Since the present invention is configured as described above, the plating layer can be formed by the plating process of the bent intermediate molded product, and the extrusion molded product can be bent before the plating process. Since it is processed, the degree of freedom when bending and deforming extruded products is greatly expanded, making it possible to create plastic molded products with a wide range of bending shapes, such as whitening of metal films, occurrence of damage and cracks, etc. It is possible to eliminate quality deterioration.
［実施例］ 次に、本発明がプラスチック成形品として自動車の窓枠
に装着されるウインドモールに適用された一実施例を図
面に従って説明する。[Embodiment] Next, an embodiment in which the present invention is applied as a plastic molded product to a wind molding mounted on a window frame of an automobile will be described with reference to the drawings.
ウインドモールＭは、メッキ処理し易い良メッキ処理性
プラスチック材と、メッキ処理し難い難メッキ処理性プ
ラスチック材との２種のプラスチック材を２色押出成形
機によって直線状に押出成形してから、押出成形された
押出成形品１を切断加工及び曲げ加工し、次に曲げ加工
された中間成形品２に部分的にメッキ処理を施して作成
される。The wind molding M is formed by linearly extruding two kinds of plastic materials, that is, a good plating processable plastic material that is easily plated and a difficult plating processable plastic material that is difficult to plate by a two-color extrusion molding machine. The extruded extrusion molded article 1 is cut and bent, and then the bent intermediate molded article 2 is partially plated.
ウインドモールＭはメッキ処理し易い良メッキ処理性プ
ラスチック材を押出成形して形成された良メッキ処理部
４と、メッキ処理し難い難メッキ処理性プラスチック材
を押出成形して形成された難メッキ処理部５とが押出成
形時に一体状に接合されて形成され、良メッキ処理部４
及び難メッキ処理部５はウインドモールＭの全長にわた
って断面方向において接合されている。The window molding M is formed by extruding a good plating processable plastic material that is easy to plate, and a good plating process formed by extruding a difficult plating processable plastic material that is difficult to plate. The part 5 and the part 5 are integrally joined at the time of extrusion molding, and the good plating process part 4 is formed.
The difficult-plated portion 5 is joined in the cross-sectional direction over the entire length of the wind molding M.
難メッキ処理部５は外表面の断面形状が円弧状の飾装部
5aと、この飾装部5aの中央部付近に連接されて断面形状
がほぼ鈎形状の取付部5bとを有し、良メッキ処理部４は
難メッキ処理部５の飾装部5aの中央部付近の反取付部5b
側に一部が露出された状態で接合され、良メッキ処理部
４には飾装部5aの外表面に整合された露出面4aがウイン
ドモールＭの全長にわたって形成され、この露出面4aに
はメッキ層６が曲げ加工後のメッキ処理によって被覆さ
れている。The hard-to-plate portion 5 is an ornamental portion whose outer surface has an arc-shaped cross section.
5a and a mounting portion 5b connected in the vicinity of the central portion of the decorative portion 5a and having a substantially hook-shaped cross section. The good plating treatment portion 4 is the central portion of the decoration portion 5a of the difficult plating treatment portion 5. Anti-mounting part 5b near
The exposed surface 4a, which is joined to the side in a partially exposed state and is aligned with the outer surface of the decorative portion 5a, is formed in the good plating processing portion 4 over the entire length of the wind molding M. The plating layer 6 is covered by the plating process after bending.
良メッキ処理性プラスチック材としては例えばABS樹脂
が適用されるが、ABS樹脂の外に酸処理による多孔質層
の生成が可能な複合プラスチック材、例えば酸処理が可
能な炭酸カルシウムの粉末と各種プラスチック材とをブ
レンドした複合プラスチック材等が適用される。For example, ABS resin is applied as the good plating plastic material, and a composite plastic material capable of forming a porous layer by acid treatment in addition to the ABS resin, for example, acid treatable calcium carbonate powder and various plastics. A composite plastic material or the like blended with a material is applied.
難メッキ処理性プラスチック材としては良メッキ処理性
プラスチック材に対するメッキ処理によってメッキ層の
生成が不能な樹脂、例えば良メッキ処理性プラスチック
材をABSとした場合には塩化ビニール樹脂が適用され
る。As the plastic material difficult to plate, a resin in which a plated layer cannot be formed by plating the plastic material having good plating property, for example, vinyl chloride resin is used when the plastic material having good plating property is ABS.
押出成形品１をほぼ形状に曲げ加工するに際し、例え
ば押出成形品１を蒸気によって加熱して軟化させ、成形
型にセットして曲げ変形させてから急冷する方法が適用
される。When the extrusion-molded product 1 is bent into a substantially shape, for example, a method of heating the extrusion-molded product 1 with steam to soften it, setting it in a molding die to cause bending deformation, and then rapidly cooling is applied.
曲げ加工された中間成形品２は通常のABSメッキ工程に
よってメッキ処理される。すなわち、曲げ加工された中
間成形品２を硫酸クロム酸混液でエッチングしてから、
中間成形品２に無電解銅メッキ処理を施し、次に、硫酸
銅浴でストライクメッキ処理を施し、さらに水洗後ニッ
ケルメッキ処理を施し、最後にクロムメッキ処理を施す
メッキ工程によって中間成形品２がメッキ処理され、良
メッキ処理部４の露出面4aのみがメッキ処理されてメッ
キ層６で被覆され、難メッキ処理部５の全表面にはメッ
キ層は被着されない。The bent intermediate product 2 is plated by a normal ABS plating process. That is, after the bent intermediate molded product 2 is etched with a mixed solution of chromic acid sulfate,
The intermediate molded product 2 is subjected to electroless copper plating, then strike plated in a copper sulfate bath, washed with water, then nickel plated, and finally subjected to chrome plating. Only the exposed surface 4a of the good plating processing portion 4 is plated and coated with the plating layer 6, and the plating layer is not deposited on the entire surface of the difficult plating processing portion 5.
続いて、上記した構成をもつ実施例の作用と効果を説明
する。Next, the operation and effect of the embodiment having the above-mentioned configuration will be described.
本例のウインドモールＭではメッキ処理し易い良メッキ
処理性プラスチック材を押出成形して形成された良メッ
キ処理部４と、メッキ処理し難い難メッキ処理性プラス
チック材を押出成形して形成された難メッキ処理部５と
が、良メッキ処理部４の一部が露出された状態で断面方
向において接合され、良メッキ処理部４の露出面4aには
押出成形品１の曲げ加工後のメッキ処理によって形成さ
れたメッキ層６が被覆されている。The window molding M of this example is formed by extruding a good-plating plastic part that is easy to plate, and a good-plating plastic part that is hard to plate, and a good-plating plastic material that is difficult to plate. The difficult-plated portion 5 is joined in the cross-sectional direction with a part of the good-plated portion 4 exposed, and the exposed surface 4a of the good-plated portion 4 is subjected to the plating treatment after bending of the extrusion-molded product 1. The plated layer 6 formed by is covered.
このため、メッキ層６を曲げ加工された中間成形品２の
メッキ処理によって形成することができ、メッキ処理す
る以前の段階で押出成形品１を曲げ加工するので、押出
成形品１を曲げ変形させるときの自由度を大幅に拡張し
て広範囲にわたる曲げ形状を有するウインドモールＭの
作成が可能となり、金属膜の白化や、破損や、亀裂の発
生等の品質低下を排除することができる。Therefore, the plated layer 6 can be formed by plating the bent intermediate molded product 2, and the extrusion molded product 1 is bent before the plating process, so that the extrusion molded product 1 is bent and deformed. The degree of freedom at this time can be greatly expanded, and it becomes possible to create the wind molding M having a wide range of bending shapes, and it is possible to eliminate deterioration in quality such as whitening of the metal film, breakage, and cracking.
図面は本発明の一実施例を示すもので、第１図は自動車
用ウインドモールの斜視図、第２図は第１図のＸ−Ｘ線
拡大断面図、第３図は第２図のＹ部拡大断面図、第４図
は押出成形品の斜視図、第５図は中間成形品の斜視図で
ある。 １……押出成形品 ２……中間成形品 ４……良メッキ処理部 ５……難メッキ処理部 ６……メッキ層 Ｍ……ウインドモール（プラスチック成形品）The drawings show one embodiment of the present invention. Fig. 1 is a perspective view of an automobile window molding, Fig. 2 is an enlarged cross-sectional view taken along line X-X of Fig. 1, and Fig. 3 is Y of Fig. 2. FIG. 4 is a perspective view of an extrusion molded product, and FIG. 5 is a perspective view of an intermediate molded product. 1 …… Extrusion molded product 2 …… Intermediate molded product 4 …… Good plating treated part 5 …… Difficult plating treated part 6 …… Plated layer M …… Wind molding (plastic molded product)
Claims (1)
ック材を押出成形して形成された良メッキ処理部と、メ
ッキ処理し難い難メッキ処理性プラスチック材を押出成
形して形成された難メッキ処理部とが、前記良メッキ処
理部の一部が露出された状態で断面方向において接合さ
れ、前記良メッキ処理部の露出面には押出成形品の曲げ
加工後のメッキ処理によって形成されたメッキ層が被覆
されていることを特徴とする部分的にメッキされたプラ
スチック成形品。1. A good-plating portion formed by extrusion-molding a good-plating plastic material that is easily plated, and a hard-plating portion formed by extruding a hard-plating plastic material that is difficult to plate. Part is joined in the cross-sectional direction in a state where a part of the good plating treatment part is exposed, and a plating layer formed on the exposed surface of the good plating treatment part by the plating treatment after bending of the extrusion molded product. Partially plated plastic molded article characterized by being coated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191005A JPH079071B2 (en) | 1990-07-19 | 1990-07-19 | Partially plated plastic moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191005A JPH079071B2 (en) | 1990-07-19 | 1990-07-19 | Partially plated plastic moldings |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8018993A Division JPH08238680A (en) | 1996-02-05 | 1996-02-05 | Molding method for partly plated plastic molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480380A JPH0480380A (en) | 1992-03-13 |
| JPH079071B2 true JPH079071B2 (en) | 1995-02-01 |
Family
ID=16267289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191005A Expired - Lifetime JPH079071B2 (en) | 1990-07-19 | 1990-07-19 | Partially plated plastic moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079071B2 (en) |
-
1990
- 1990-07-19 JP JP2191005A patent/JPH079071B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0480380A (en) | 1992-03-13 |
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