WO2016106524A1 - 铝材表面处理用的出光剂 - Google Patents

铝材表面处理用的出光剂 Download PDF

Info

Publication number
WO2016106524A1
WO2016106524A1 PCT/CN2014/095431 CN2014095431W WO2016106524A1 WO 2016106524 A1 WO2016106524 A1 WO 2016106524A1 CN 2014095431 W CN2014095431 W CN 2014095431W WO 2016106524 A1 WO2016106524 A1 WO 2016106524A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
agent
aluminum
emitting agent
nitric acid
Prior art date
Application number
PCT/CN2014/095431
Other languages
English (en)
French (fr)
Inventor
刘国平
Original Assignee
深圳市恒兆智科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市恒兆智科技有限公司 filed Critical 深圳市恒兆智科技有限公司
Priority to PCT/CN2014/095431 priority Critical patent/WO2016106524A1/zh
Publication of WO2016106524A1 publication Critical patent/WO2016106524A1/zh

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00—Brightening metals by chemical means
    • C23F3/02—Light metals
    • C23F3/03—Light metals with acidic solutions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12—Light metals

Definitions

  • the invention relates to the technical field of metal surface treatment, in particular to a light-emitting agent for surface treatment of aluminum materials.
  • Metal surface treatment techniques are often used to improve surface properties or appearance.
  • the surface treatment of aluminum-magnesium and its alloys is well-established in a wide range of industries.
  • the surface of aluminum and its alloys is firstly subjected to acid etching or alkali etching, and acid-base degreasing or deburring is performed, and as a result, black ash is formed on the surface of aluminum and its alloy.
  • the surface of the aluminum with black ash is not adjusted, affecting the subsequent passivation. Therefore, light treatment is usually performed on aluminum materials with black ash.
  • the current light-emitting agent generally uses nitric acid. However, for some black ash-heavy aluminum surfaces, that is, after the light treatment with nitric acid, the aluminum surface will still be There is black ash residue and the removal is not complete.
  • a light-emitting agent for surface treatment of aluminum which has no residue and which makes the surface of the aluminum bright and environmentally friendly.
  • a light-emitting agent for surface treatment of aluminum comprising the following components according to a mass ratio: 8-15% nitric acid, 1-2% Iron sulphate, 1-3% hydrochloric acid and 80-90% water.
  • the light-emitting agent for the surface treatment of the aluminum material contains nitric acid, iron sulfate, and hydrochloric acid, and the components are combined.
  • the black ash can be removed more completely than the nitric acid or sulfuric acid alone.
  • the aluminum material treated by the light-emitting agent has a bright appearance and is convenient for subsequent processing of the aluminum material.
  • the light-emitting agent does not contain chromium, it is a safe and environmentally friendly reagent.
  • FIG. 1 is a photograph showing the product of a light-treating agent treated in Example 1 of the present invention.
  • Fig. 2 is a photograph showing the product of the light-treating agent treated in Example 2 of the present invention.
  • Fig. 3 is a photograph showing the product of the light-treating agent treated in Example 3 of the present invention.
  • Figure 4 is a photograph of the product after the treatment of the light-emitting agent of Comparative Example 1.
  • Figure 5 is a photograph of the product after the treatment of the light-emitting agent of Comparative Example 2.
  • Figure 6 is a photograph of the product after the treatment of the light-emitting agent of Comparative Example 3.
  • Figure 7 is a photograph of the surface of the product that has not been treated with a light agent.
  • Embodiments of the present invention provide a light-emitting agent for surface treatment of aluminum materials, which comprises the following components according to a mass ratio: 8-15% of nitric acid, 1-2% ferric sulfate, 1-3% hydrochloric acid and 80-90% water.
  • the nitric acid has a mass percentage of 8-10%.
  • the mass percentage of the hydrochloric acid is preferably from 1.5 to 2%, more preferably 2%.
  • the mass percentage of the iron sulfate is preferably from 1.5 to 2%, more preferably 2%.
  • the light-emitting agent further includes 0 to 2% of sulfuric acid, and the mass percentage of the sulfuric acid is preferably 1-2%. In each of the above acids, a dilute acid raw material is used.
  • the nitric acid raw material ie, the solute concentration in the nitric acid raw material, the same below
  • the sulfuric acid raw material content is 98%
  • the hydrochloric acid raw material content is 33%
  • the light-emitting treatment is mainly for the workpiece product with black ash on the aluminum surface.
  • the dust on the surface of the material can be quickly removed, the workpiece can be restored to the original color, and the subsequent surface treatment effect can be improved, for example, light-emitting.
  • the passivation treatment is performed, the adhesion of the passivation film can be improved.
  • the treatment of the light-emitting agent can also be used for the pretreatment of the plating treatment or the anodizing treatment.
  • the light-emitting treatment is usually immersed or sprayed with a light-emitting agent, wherein the immersion treatment time is preferably 0.5-2 minutes, more preferably 1-2.
  • the spray treatment time is preferably 0.5 to 1 minute.
  • aluminum When aluminum is treated by degreasing, it usually forms black ash on the surface, as shown in Figure 2. As shown, the surface of the aluminum material was a layer of black ash, and the black ash on the surface of the aluminum material was removed by using the mixed acid form of this example. If the concentration of nitric acid and sulfuric acid is too high, a dense oxide film will be formed on the surface of the aluminum.
  • Figure 1 As shown, the surface of the aluminum that has been light-treated is very bright, bright in color, and free of impurities, while the surface of the aluminum that has not been exposed to light is ash-filled and has a dark color.
  • Appearance comparison Take ALCOA7075 aluminum profile as an example, soak it in 5% sodium hydroxide for 5 minutes after neutral degreasing, then clean it 2 After all, the light comparison is compared, and the results before and after the light are compared.
  • Figure 1-3 is a photograph of the surface of the aluminum material after the light-receiving agent of Examples 1-3
  • Figure 4-6 shows the comparative example 4-6. Photograph of the surface of the aluminum after the treatment of the light agent. As can be seen from the figure, after the light-emitting treatment of the light-emitting agent of Example 1-3, the surface of the aluminum-shaped aluminum-like material became bright, and the original metallic luster was restored, and Comparative Example 4-6 was used.
  • Figure 7 is a photograph of the surface of an aluminum material that has not been exposed to light. Figure 7 shows that the surface of the aluminum that has not been exposed to light has a large amount of black ash.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

一种铝材表面处理用的出光剂，其包括按照质量百分配比的下列成分：8-15％的硝酸，1-2％的硫酸铁，1-3％的盐酸和80-90％的水。该出光剂含有硝酸、硫酸铁和盐酸，各成分配合作用，比起单独采用硝酸或硫酸，能够更加彻底去除黑灰，无残留。经过该出光剂处理后的铝材，外观光亮，方便铝材的后续加工处理。另外，由于该出光剂中不含铬，是一种安全环保型试剂。

Description

铝材表面处理用的出光剂 技术领域
本发明涉及金属表面处理技术领域，具体涉及一种铝材表面处理用的出光剂。
背景技术
为提高表面性能或者外观，通常对金属表面处理技术。例如，铝镁及其合金的表面处理工艺深入各行各业中。通常会先对铝及其合金表面进行酸蚀或碱蚀，以及进行酸碱除油或去毛刺，结果在铝及其合金表面形成黑灰。具有黑灰的铝材表面得不到调整，影响后面钝化。因此，通常对于有黑灰的铝材再作出光处理，目前的出光剂一般使用硝酸，然而，对于一些黑灰较严重的铝材表面，即使用硝酸液进行出光处理后，铝材表面仍会有黑灰残留，去除不彻底。
技术问题
有鉴于此，提供一种无残留、使铝材表面光亮、环保型的铝材表面处理用的出光剂。
技术解决方案
一种铝材表面处理用的出光剂，其包括按照质量百分配比的下列成分： 8-15% 的硝酸， 1-2% 的硫酸铁， 1-3% 的盐酸和 80-90% 的水。
有益效果
上述铝材表面处理用的出光剂含有硝酸、硫酸铁和盐酸，各成分配合作用，比起单独采用硝酸或硫酸，能够更加彻底去除黑灰，无残留。经过该出光剂处理后的铝材，外观光亮，方便铝材的后续加工处理。另外，由于该出光剂中不含铬，是一种安全环保型试剂。
附图说明
图 1 是本发明实施例 1 的出光剂处理后的产品实物照片。
图 2 是本发明实施例 2 的出光剂处理后的产品实物照片。
图 3 是本发明实施例 3 的出光剂处理后的产品实物照片。
图 4 是对比例 1 的出光剂处理后的产品实物照片。
图 5 是对比例 2 的出光剂处理后的产品实物照片。
图 6 是对比例 3 的出光剂处理后的产品实物照片。
图 7是未经出光剂处理的产品表面的照片。
 本发明的实施方式
以下将结合具体实施例和附图对本发明进行详细说明。
本发明实施例提供一种铝材表面处理用的出光剂，其包括按照质量百分配比的下列成分： 8-15% 的硝酸， 1-2% 的硫酸铁， 1-3% 的盐酸和 80-90% 的水。
优选地，所述硝酸的质量百分含量为 8-10% 。所述盐酸的质量百分含量优选为 1.5-2% ，更优选为 2% 。所述硫酸铁的质量百分含量优选为 1.5-2% ，更优选为 2% 。所述出光剂还包括 0-2% 的硫酸，所述硫酸的质量百分含量优选为 1-2% 。上述各酸中都是采用稀酸原料，优选地，硝酸原料（即硝酸原料中溶质浓度，下同）含量为 68% ，硫酸原料含量为 98% ，盐酸原料含量为 33% ，出光剂总酸度控制在 50-200pt 范围， 1pt=0.01mol/L 的 H+ 。
出光处理主要是针对铝表面有黑灰的工件产品而做的，通过出光处理，能够快速清除掉材料表面的杂灰，使工件恢复到原本的色泽，可以提高后续表面处理的效果，例如，出光后进行钝化处理时，可提高钝化膜的附着力。另外，出光剂的处理还可以用在电镀处理或阳极氧化处理的预处理。
出光处理通常是用出光剂浸泡或喷淋铝材，其中，浸泡处理时间优选为 0.5-2 分钟，更优选为 1-2 ，喷淋处理时间优选为 0.5-1 分钟。铝材在经过除油等处理时，通常会在表面形成黑灰，即如图 2 所示，铝材表面一层黑灰，通过采用本实施例的混合酸形式将铝材表面的黑灰去除。如果采用的硝酸和硫酸浓度过高，铝材表面将形成致密的氧化膜，仅仅采用硝酸和硫酸，很难彻底去除黑灰，而盐酸能够不断溶解黑灰，即使硝酸或硫酸有氧化铝产生，也能不在溶解，从而可彻底去除黑灰，不会有残留，还原出铝材的金属光泽。
如图 1 所示，经过出光处理的铝表面非常光亮，色泽明亮，无杂质，而未经出光处理的铝表面有挂灰，色泽灰暗。
以下通过具体实例说明本发明实施例的铝材表面处理用的出光剂。
实施例 1 ～ 3 和对比例 4 ～ 6
按照表 1 的质量配比配制出光剂，将有黑灰的铝材浸泡于出光剂中，在常温下，浸泡 1 分钟，用工业自来水清洗 1-2 次，彻底去除黑灰，观察铝材表面。
外观比较：以 ALCOA7075 铝型材为例，中性除油后在 5% 氢氧化钠中浸泡 5 分钟，再清洗 2 遍后，出光比较，将出光前后比较结果如图。图 1-3 分别是实施例 1-3 的出光剂处理后的铝材表面照片，图 4-6 分别是用对比例 4-6 的出光剂处理后的铝材表面照片。从图上可知，用实施例 1-3 出光剂出光处理后，原来有黑灰的铝型材表面变得光亮，还原出原有金属光泽，而采用比较例 4-6 的出光剂处理后，铝材表面灰暗，还有黑灰残留。图 7 是未经出光处理的铝材表面照片，图 7 中显示，未经出光处理的铝材表面有大量黑灰。
表 1 各实施例中的出光剂质量配比和测试结果
序号 实施例 1 实施例 2 实施例 3 对比例 4 对比例 5 对比例 6
硝酸 (%) 9 11 13 12 10 8
硫酸铁 (%) 3 2 1 3 5 7
盐酸 (%) 3 2 1 0 0 0
水 (%) 85 85 85 85 85 85
铝材表面外观 光亮 光亮 光亮 灰暗 灰暗 灰暗
需要说明的是，本发明并不局限于上述实施方式，根据本发明的创造精神，本领域技术人员还可以做出其他变化，这些依据本发明的创造精神所做的变化，都应包含在本发明所要求保护的范围之内。

Claims (9)

  1. 一种铝材表面处理用的出光剂，其包括按照质量百分配比的下列成分： 8-15% 的硝酸， 1-2% 的硫酸铁， 1-3% 的盐酸和 80-90% 的水。
  2. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述硝酸的质量百分含量为 8-10% 。
  3. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述盐酸的质量百分含量为 1.5-2% 。
  4. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述盐酸的质量百分含量为 2% 。
  5. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述硫酸铁的质量百分含量为 1.5-2% 。
  6. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述硫酸铁的质量百分含量为 2% 。
  7. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述出光剂还包括 0-2% 的硫酸。
  8. 如 权利要求 7 所述的铝材表面处理用的出光剂，其特征在于，所述硫酸的质量百分含量为 1-2% 。
  9. 如权利要求 1 所述的铝材表面处理用的出光剂，其特征在于，所述出光剂总酸度控制在 50-200pt 范围内。
PCT/CN2014/095431 2014-12-29 2014-12-29 铝材表面处理用的出光剂 WO2016106524A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/095431 WO2016106524A1 (zh) 2014-12-29 2014-12-29 铝材表面处理用的出光剂

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/095431 WO2016106524A1 (zh) 2014-12-29 2014-12-29 铝材表面处理用的出光剂

Publications (1)

Publication Number Publication Date
WO2016106524A1 true WO2016106524A1 (zh) 2016-07-07

Family

ID=56283809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/095431 WO2016106524A1 (zh) 2014-12-29 2014-12-29 铝材表面处理用的出光剂

Country Status (1)

Country Link
WO (1) WO2016106524A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312739A (en) * 1976-07-22 1978-02-04 Nippon Keikinzoku Sougou Kenki Desmutting method in electrolytic roughing treatment for aluminum
JPH0657461A (ja) * 1991-03-29 1994-03-01 Rasa Ind Ltd スマット除去液
CN1271652A (zh) * 1999-04-22 2000-11-01 富士摄影胶片株式会社 制做用于金属印刷板的铝支座的方法
US20020162990A1 (en) * 2001-02-09 2002-11-07 Henkel Corporation Composition and process for etching and desmutting aluminum and its alloys
JP2003103954A (ja) * 2001-09-28 2003-04-09 Fuji Photo Film Co Ltd 平版印刷版用アルミニウム支持体の製造方法、平版印刷版用アルミニウム支持体、および平版印刷原版
JP2005097735A (ja) * 2003-08-27 2005-04-14 Denka Himaku Kogyo Kk アルミニウム及びアルミニウム合金の製造方法
CN101609747A (zh) * 2009-07-07 2009-12-23 吴江飞乐天和电子材料有限公司 一种超级电容器电级箔的生产方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312739A (en) * 1976-07-22 1978-02-04 Nippon Keikinzoku Sougou Kenki Desmutting method in electrolytic roughing treatment for aluminum
JPH0657461A (ja) * 1991-03-29 1994-03-01 Rasa Ind Ltd スマット除去液
CN1271652A (zh) * 1999-04-22 2000-11-01 富士摄影胶片株式会社 制做用于金属印刷板的铝支座的方法
US20020162990A1 (en) * 2001-02-09 2002-11-07 Henkel Corporation Composition and process for etching and desmutting aluminum and its alloys
JP2003103954A (ja) * 2001-09-28 2003-04-09 Fuji Photo Film Co Ltd 平版印刷版用アルミニウム支持体の製造方法、平版印刷版用アルミニウム支持体、および平版印刷原版
JP2005097735A (ja) * 2003-08-27 2005-04-14 Denka Himaku Kogyo Kk アルミニウム及びアルミニウム合金の製造方法
CN101609747A (zh) * 2009-07-07 2009-12-23 吴江飞乐天和电子材料有限公司 一种超级电容器电级箔的生产方法

Similar Documents

Publication Publication Date Title
CN104593793B (zh) 一种铝和铝合金表面预处理中和液
JPS6167770A (ja) マグネシウムおよびマグネシウム合金のめつき法
CN104357849B (zh) 一种有色金属表面处理剂
CN103695976A (zh) 一种铜产品电镀镍前的处理方法
US2458661A (en) Process of cleaning metal surfaces and compositions therefor
US2654701A (en) Plating aluminum
CN108624933A (zh) 一种成本低的铝制品表面处理工艺
WO2016106524A1 (zh) 铝材表面处理用的出光剂
CN104278281A (zh) 一种含复配钝化剂的酸洗液及其制备方法
US2224245A (en) Protection of magnesium-rich alloys
US4070193A (en) Corrosion resistant metal sealing formulation
JPS60181282A (ja) アルミニウム合金の表面処理法
JPH0734254A (ja) アルミニウム系材料への無電解めっき方法
WO2017214781A1 (zh) 无铬免洗皮膜剂、铝材及其表面皮膜化处理方法
WO2017219254A1 (zh) 钝化剂、铜件及其钝化处理方法
US2403706A (en) Metallic coating
KR101181421B1 (ko) 마그네슘 합금의 표면처리 방법
CN110205618B (zh) 一种短流程制备镁合金表面高硬度膜层的方法
DE1291169C2 (de) Verwendung eines beizbades zur reinigung von gusstuecken aus aluminiumlegierungen
CN112593221A (zh) 一种抗氧化的铝合金表面处理剂
US2233422A (en) Method of coating copper and its alloys
JPS6213563A (ja) ステンレス鋼の着色処理方法
WO2016106526A1 (zh) 用于铝材拉伸的成膜剂
US2457480A (en) Blackening copper alloys
KR20210113636A (ko) 구리 표면 상에 구리 산화물을 형성하는 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14909336

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14909336

Country of ref document: EP

Kind code of ref document: A1