200403360 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種定義於申請專利範圍獨立項中之用 於改良由銅基金屬合金製成物品之品質的方法及配置。 【先前技術】 在由銅或銅合金製成之物品的表面上在製造過程中，例 如在鑄造及各種退火處理中，會產生干擾其進一步加工的 氧化物層。因此，通常必需將累積於表面上之氧化物層清 除。在銅表面上很難觀察或測量氧化物層，其若無特殊設 備的話將不一定可辨別。要將厚的氧化物層自銅表面移除 相當簡單，但另一方面，最後之分子層的移除則更為麻煩。 然而，即使係在視覺上不明顯的氧化物層亦會使銅產品的 品質造成瑕疯。在銅表面上之氧化物層會干擾，例如擠製， 以致當移除氧化物層時，會產生有害的擠製廢料。擠製廢 料之處理及再循環需要額外的費用。當利用擠製製造銅線 時，完全不含氧化物的供給線料可確保較佳的操作，且可 使產品得到幾近完美的品質。 在清潔銅金屬表面時，一般應用蝕刻，即以化學方式利 用溶解將金屬表面上的氧化物層清除。一般知曉在蝕刻之 前應將所有的油脂及油自產品表面移除。銅金屬之蝕刻一 般係於硫酸-水溶液中進行，且其將於表面上所產生之大部 分的氧化物移除。在習知的硫酸蝕刻中，於蝕刻方法後立 即達到低的氧化物層值，但實際上，酸的溶氧及最終洗滌 的緩慢性於乾燥之後會使氧化物層加倍。 5 312/發明說明書(補件)/92-10/92119934 200403360 機械程序，諸如表面敲擊（surface pealing)或研磨， 會損傷待清潔物品的表面，且其並不一定適合於需要精密 度的表面清潔方法。 防止於銅物品之表面上產生氧化物的一種方式係利用 保護性大氣隔絕銅物品，以防止氧化。 由公告W 0 0 2 / 3 2 5 9 5知曉一種可據以藉機械方式將表面 層自鋁或銅物品之表面刮除，以致可將產生於表面上之不 純物，諸如氧化物層除去之機構。然而，表面之機械清潔 會導致關於铭或銅的顯著材料損耗。此外，材料表面會因 機械摩擦而受損。經摩擦表面層之回復及進一步加工亦會 造成額外的麻煩。 【發明内容】 本發明之目的為避免先前技藝之缺失，及引介一種改良 由銅基金屬合金製成物品之品質的新穎辦法。本發明之一 特殊目的為經由藉由陰極還原自表面移除氧化物，而改良 由銅基金屬合金製成物品之品質。 本發明之特徵記述於申請專利範圍獨立項之特徵部 分。本發明之其他較佳具體例的特徵記述於其他之申請專 利範圍中。 根據本發明之方法具有許多優點。本發明係關於一種改 良由銅基金屬合金製成物品之品質的方法，根據此方法， 使物品至少於氧化物移除單元中進行處理，以致在氧化物 移除單元中，藉由陰極還原而將氧化物自物品表面移除。 經由施行陰極還原，存在於銅表面上之氧化物經還原成 6 312/發明說明書(補件)/92-10/92119934 200403360 銅，以致將氧化物層自銅物 一較佳具體例，於陰極還原 液。根據本發明之另一較佳 之電解質為硫酸溶液。根據 極還原中所使用之陰極係由 所使用之陽極係不溶解材料 極。其他適當的陽極材料例 陰極還原中，於陽極上產生 極設置至少一排氣孔隙，以 較佳具體例，在陰極還原中 薄膜。最好將薄膜置於陽極 轉移至陰極。氧隨同溶液循 薄膜之間的空間排出。根據 極對稱設置，以致其環繞整 原反應平順地進行，且電壓 根據本發明之一較佳具體 物品在陰極還原之前進行初 由銅基金屬合金製成之物品 蝕刻。因此，在陰極還原之 除。當需要時，經由機械乾 明之一較佳具體例，於陰極 水洗條。 根據本發明，於在氧化物 留的氧化物層係以0 . 0 0 1 - 0 · 品之表面除去。根據本發明之 中所使用之電解質為碳酸鈉溶 具體例，於陰極還原中所使用 本發明之一較佳具體例，於陰 銅基金屬合金製成之物品，及 ，諸如鉑陽極或塗佈鉑之鈦陽 如為鉛或塗佈氧化銥之鈦。在 氧，而於陰極上產生銅。對陽 使氧可排出。根據本發明之一 使用不可透過氧之離子選擇性 與陰極之間，以防止氧自陽極 環或經由氧排氣孔隙自陽極與 一較佳具體例，薄膜係環繞陰 個陰極。以此方式使氧化及還 均勻地分佈於整個電池中。 例，使由銅基金屬合金製成之 步洗條。根據另一具體例，使 在陰極還原之前利用硫酸進行 前將最厚的氧化物膜快速地移 燥將硫酸薄膜移除。根據本發 還原之後使物品進行快速加壓 移除單元中進行之處理後之殘 0 1奈米之程度殘留較佳，即最 312/發明說明書(補件)/92-10/92119934 7 200403360 好將氧化物膜幾近完全地移除。根據本發明之一較佳 例，使物品於氧化物移除單元之後進行諸如連續操作 處理之加工方法。氧化物移除單元及加工方法藉由保 氣體而與環境隔絕。 本發明亦關於一種用於實行如申請專利範圍第1項 良由銅基金屬合金製成物品之品質之方法的配置，該 包括至少一氧化物移除單元及用於實行陰極還原之元 諸如陽極、陰極及電解質，以致藉由不可透過氧之薄 防止於陽極上產生之氧到達陰極。 一般而言，經由利用本發明，可促進及加速銅之連 作擠製，且當將存在於表面上之氧化物除去時，可改 法的回收率。擠製廢料的產生可被避免，且設備的工 命可延長。當將有害的氧化物層移除時，銅產品的品 得較佳。 【實施方式】 圖1以方塊圖之形式說明根據本發明之方法。將由 成之圓線狀物品1引導至氧化物移除單元3。氧化物 單元3包括陰極還原配置。由氧化物移除單元製得之 氧化物之銅線2被引導至加工處理，諸如連續操作擠 理4。氧化物移除單元及加工處理單元藉由保護性氣 與環境隔絕。 圖2顯示於氧化物移除單元中進行之陰極還原方法 剖面。根據此例子，在適當移除氧之前洗條銅線。其 用硫酸使銅線進行初步蝕刻，以致將最厚的氧化物層 312/發明說明書(補件)/92-10/92119934 具體 擠製 護性 之改 配置 件， 膜而 續操 良方 作壽 質變 銅製 f多除 不含 製處 豐而 的橫 後利 移 8 200403360 除。經由例如機械乾燥，將於蝕刻之後殘留的硫酸薄 除。接著進行陰極還原。將銅線5置於含有碳酸鈉溶 之室9中，及將電流傳導至該室。銅線5提供作為陰 氧化銅於其上還原成銅，因此將氧化物幾近完全地自 面除去。所使用之陽極6為不溶解的鉑陽極，於其上 氧。溶液11填充於室9之各處。利用不可透過氧之離 擇性薄膜8 (其以環繞整個陰極較佳）防止於陽極上產： 氧的通達。薄膜之所使用的框罩為絕緣的穿孔管1 0， 持液體的連接。薄膜最好係環繞陰極對稱設置，其有 還原及氧化反應的均勻進行。連接陽極6設置氧排氣 7，藉以使於陽極上產生之氧自系統移除。 熟悉技藝人士當明白本發明之各種具體例並不限於 明於上的例子，而係可在隨附申請專利範圍之範圍内 變 〇 【圖式簡單說明】 本發明已參照附圖更詳細說明於上。 圖1根據本發明方法之原理的圖式。 圖2陰極還原之橫剖面。 (元件符號說明） 1 圓線狀物品 2 不含氧化物之銅線 3 氧化物移除單元 4 連續操作擠製處理（加工處理） 5 銅線（陰極） 312/發明說明書(補件)/92-10/92119934 膜移 液1 1 極， 銅表 產生 子選 t之 以維 助於 孔隙 說 作改 200403360200403360 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method and arrangement for improving the quality of an article made of a copper-based metal alloy, which is defined in the independent item of the scope of patent application. [Prior art] On the surface of an article made of copper or copper alloy, during the manufacturing process, such as in casting and various annealing processes, an oxide layer that interferes with its further processing will be generated. Therefore, it is usually necessary to remove the oxide layer accumulated on the surface. It is difficult to observe or measure the oxide layer on the copper surface, which will not necessarily be discernable without special equipment. Removal of the thick oxide layer from the copper surface is relatively simple, but on the other hand, the removal of the final molecular layer is more troublesome. However, even an oxide layer that is not visually apparent can cause madness in the quality of copper products. The oxide layer on the copper surface can interfere with, for example, extrusion, so that when the oxide layer is removed, harmful extrusion waste can be generated. Processing and recycling of extruded waste requires additional costs. When copper wires are made by extrusion, a feed wire that is completely free of oxides ensures better operation and results in products with near-perfect quality. When cleaning the surface of copper metal, etching is generally used, that is, the oxide layer on the metal surface is chemically removed by dissolution. It is generally known that all grease and oil should be removed from the product surface before etching. The etching of copper metal is generally performed in a sulfuric acid-water solution, and it will remove most of the oxides produced on the surface. In the conventional sulfuric acid etching, a low oxide layer value is reached immediately after the etching method, but in reality, the dissolved oxygen of the acid and the slowness of the final washing double the oxide layer after drying. 5 312 / Invention Specification (Supplement) / 92-10 / 92119934 200403360 Mechanical procedures, such as surface pealing or grinding, will damage the surface of the item to be cleaned, and it may not be suitable for surfaces requiring precision Cleaning method. One way to prevent the formation of oxides on the surface of copper articles is to protect the copper articles with a protective atmosphere to prevent oxidation. From the publication W 0 0 2/3 2 5 9 5 is known a mechanism by which the surface layer can be mechanically scraped from the surface of an aluminum or copper article so that impurities such as oxide layers can be removed from the surface . However, mechanical cleaning of the surface can result in significant material loss with regard to copper or copper. In addition, the material surface can be damaged by mechanical friction. Recovery and further processing of the rubbed surface layer will cause additional trouble. [Summary of the Invention] The purpose of the present invention is to avoid the lack of prior art and introduce a novel method for improving the quality of articles made of copper-based metal alloys. A special object of the present invention is to improve the quality of articles made of copper-based metal alloys by removing oxides from the surface by cathodic reduction. The features of the present invention are described in the features of the independent item in the scope of patent application. The features of other preferred embodiments of the present invention are described in the scope of other patent applications. The method according to the invention has many advantages. The invention relates to a method for improving the quality of an article made of a copper-based metal alloy. According to this method, the article is processed at least in an oxide removing unit, so that in the oxide removing unit, the cathode is reduced by The oxide is removed from the surface of the article. Through the implementation of the cathode reduction, the oxides present on the copper surface are reduced to 6 312 / Invention Specification (Supplement) / 92-10 / 92119934 200403360 copper, so that the oxide layer is made from a copper material. Reducing solution. Another preferred electrolyte according to the present invention is a sulfuric acid solution. According to the cathode used in electrode reduction, the anode used is an insoluble material electrode. Other suitable examples of anode materials In cathode reduction, at least one vent hole is provided on the anode electrode. In a preferred embodiment, a thin film is used in the cathode reduction. The film is preferably transferred from the anode to the cathode. Oxygen is expelled with the solution through the space between the films. According to the extremely symmetrical arrangement, the reaction proceeds smoothly around the integrator, and the voltage according to one of the preferred embodiments of the present invention is an etching of an article originally made of a copper-based metal alloy before cathode reduction. Therefore, the reduction is performed at the cathode. When necessary, the strips are washed with water at the cathode through one of the preferred embodiments of mechanical drying. According to the present invention, the oxide layer remaining on the oxide is removed with a surface of 0.0 0 1-0 · product. The electrolyte used in the present invention is a specific example of sodium carbonate dissolution, and one of the preferred embodiments of the present invention used in cathode reduction is an article made of an anionic copper-based metal alloy, and such as a platinum anode or coating Platinum titanium oxide is lead or titanium coated with iridium oxide. At the oxygen, copper is produced on the cathode. Oxygen can be expelled from the sun. According to one aspect of the present invention, the ion selectivity between the impermeable oxygen and the cathode is used to prevent oxygen from passing from the anode ring or from the anode through the oxygen exhaust pores. A preferred embodiment is that the film surrounds the cathode. In this way, the oxidation and also are evenly distributed throughout the battery. For example, a step washing bar made of a copper-based metal alloy is used. According to another specific example, the thickest oxide film is quickly dried before the cathode reduction is performed using sulfuric acid to remove the sulfuric acid film. After the reduction according to the present invention, the article is subjected to rapid pressurization to remove the residue in the processing unit. The residual degree is better than 1 nanometer, that is, the most 312 / invention specification (Supplement) / 92-10 / 92119934 7 200403360 The oxide film was almost completely removed. According to a preferred embodiment of the present invention, the article is subjected to a processing method such as a continuous operation process after the oxide removing unit. The oxide removal unit and processing method are insulated from the environment by maintaining a gas. The present invention also relates to a configuration for implementing a method for quality of an article made of a copper-based metal alloy as described in claim 1 of the scope of the patent application. , Cathode, and electrolyte, so that the oxygen generated on the anode is prevented from reaching the cathode by the thinness of the impermeable oxygen. In general, by using the present invention, continuous extrusion of copper can be promoted and accelerated, and the recovery rate can be modified when the oxides present on the surface are removed. The production of extrusion waste can be avoided and the life of the equipment can be extended. When harmful oxide layers are removed, copper products perform better. [Embodiment] FIG. 1 illustrates a method according to the present invention in the form of a block diagram. The completed round-shaped article 1 is guided to the oxide removing unit 3. The oxide unit 3 includes a cathode reduction configuration. The copper copper wire 2 of the oxide produced by the oxide removal unit is guided to a processing process such as continuous operation extrusion 4. The oxide removal unit and processing unit are isolated from the environment by a protective gas. Figure 2 shows a cross section of a cathodic reduction method performed in an oxide removal unit. According to this example, the copper wire was washed before the oxygen was properly removed. It uses sulfuric acid to make the copper wire preliminary etch, so that the thickest oxide layer 312 / Invention Specification (Supplement) / 92-10 / 92119934 is used to modify the protective properties of the specific extrusion, and the film is continued to be used as a life-changing copper f more than the division without the abundance of the horizontal and sharp shift 8 200403360 division. The residual sulfuric acid after the etching is thinned out by, for example, mechanical drying. Cathodic reduction is then performed. The copper wire 5 is placed in a chamber 9 containing a sodium carbonate solution, and an electric current is conducted to the chamber. The copper wire 5 is provided thereon as anodized copper oxide to be reduced thereon to copper, so that the oxide is almost completely removed from the surface. The anode 6 used was an insoluble platinum anode on which oxygen was applied. The solution 11 is filled throughout the chamber 9. An oxygen-impermeable selective film 8 (which preferably surrounds the entire cathode) is used to prevent production on the anode: the passage of oxygen. The frame cover of the film is an insulated perforated tube 10, which holds the liquid connection. The thin film is preferably arranged symmetrically around the cathode, which has a uniform reduction and oxidation reaction. An oxygen exhaust gas 7 is connected to the anode 6 to remove oxygen generated on the anode from the system. Those skilled in the art should understand that the specific examples of the present invention are not limited to the examples described above, but can be changed within the scope of the accompanying patent application. [Simplified illustration of the drawing] The present invention has been described in more detail with reference to the accompanying drawings. on. Fig. 1 is a diagram of the principle of the method according to the invention. Figure 2 Cross section of cathode reduction. (Description of component symbols) 1 Round wire-like article 2 Copper wire without oxide 3 Oxide removal unit 4 Continuous operation extrusion processing (processing treatment) 5 Copper wire (cathode) 312 / Invention Specification (Supplement) / 92 -10/92119934 Membrane pipetting 1 1 pole, copper surface generating sub-selection t to support the porosity theory 200302360
6 陽 極 7 氧 排 氣 孔 隙 8 離 子 選 擇 性薄膜 9 室 10 穿 孔 管 11 碳 酸 鈉 溶 液（電解 312/發明說明書(補件)/92-10/92119934 106 Anode 7 Oxygen exhaust pore gap 8 Ion selective membrane 9 Chamber 10 Perforated tube 11 Sodium carbonate solution (Electrolysis 312 / Invention Specification (Supplement) / 92-10 / 92119934 10