WO2018006274A1 - 铸铝工件除垢洗白剂、铸铝工件及其表面除垢洗白方法 - Google Patents

铸铝工件除垢洗白剂、铸铝工件及其表面除垢洗白方法 Download PDF

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WO2018006274A1
WO2018006274A1 PCT/CN2016/088706 CN2016088706W WO2018006274A1 WO 2018006274 A1 WO2018006274 A1 WO 2018006274A1 CN 2016088706 W CN2016088706 W CN 2016088706W WO 2018006274 A1 WO2018006274 A1 WO 2018006274A1
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parts
cast aluminum
descaling
aluminum workpiece
whitening agent
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PCT/CN2016/088706
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English (en)
French (fr)
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王饶玲
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深圳市恒兆智科技有限公司
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Priority to PCT/CN2016/088706 priority Critical patent/WO2018006274A1/zh
Publication of WO2018006274A1 publication Critical patent/WO2018006274A1/zh

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    • 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 present invention relates to the technical field of metal surface treatment, and in particular relates to a descaling whitening agent for a cast aluminum workpiece, a cast aluminum workpiece, and a surface descaling method.
  • the surface treatment technology of the workpiece is usually applied.
  • the surface treatment of aluminum and iron alloys goes deep into all walks of life.
  • most of the work needs to be pretreated before entering the surface of the line, for example, cleaning, descaling and degreasing.
  • die-cast aluminum alloys have a large amount of black ash which is generated by strong acid-base treatment due to high silicon content.
  • the commonly used chemical treatment method is concentrated nitric acid hydrofluoric acid, which is highly reactive and produces a large amount of yellow smoke, which is highly toxic.
  • a descaling and whitening agent for a cast aluminum workpiece with good descaling and cleaning effect, no yellow smoke, and a method for removing and whitening the cast aluminum workpiece and the surface thereof can effectively remove the surface of the cast aluminum workpiece.
  • the stain, the release agent, the black skin and the acid etch, and the black ash generated by the alkali corrosion, produce a clean and bright surface, providing excellent adhesion for subsequent spraying and plating.
  • a cast aluminum workpiece descaling whitening agent used for surface treatment of cast aluminum workpieces, comprising the following parts by weight
  • a method for descaling and whitening a surface of a cast aluminum workpiece comprising the steps of: preparing a descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, and washing the white
  • the cast aluminum workpiece is treated by a solution, and after a predetermined daytime treatment, it is washed with water.
  • a cast aluminum workpiece whose surface is subjected to surface treatment by a surface descaling treatment of the surface of the cast aluminum workpiece as described above, and then a protective film is formed by spraying and electroplating.
  • the above descaling whitening agent can effectively remove the stain on the surface of the cast aluminum workpiece, the release agent, the black skin and the black ash generated by the acid etching and the alkali corrosion, and produce a clean and bright surface for subsequent spraying and electroplating. Provides excellent bonding. It is produced without nitrogen oxides and yellow smoke, which is beneficial to the environment and the health of the operators.
  • the above descaling and whitening agent is suitable for various cast aluminum workpieces, for example, high silicon die-cast aluminum materials such as ADC12, ADC10, and A356.
  • Embodiments of the present invention provide a cast aluminum workpiece descaling whitening agent for surface pretreatment of cast aluminum, comprising the following parts by weight: 10-20 parts of nitric acid, 10-20 parts of ammonium hydrogen fluoride 2-5 parts of nonylphenol ethoxylate, 30-40 parts of phosphoric acid, 5-10 parts of potassium permanganate, 1-2 parts of citric acid, 5-10 parts of ethylene glycol, 30-60 parts of water.
  • the parts by weight of the nitric acid are preferably 12-15 parts, and the parts by weight of the ammonium hydrogen fluoride is preferably 12-16 parts.
  • the parts by weight of the phosphoric acid are 32-36 parts, and the parts by weight of the potassium permanganate are 6-8 parts.
  • the nonylphenol ethoxylate has a weight fraction of from 2 to 3 parts.
  • the weight fraction of ethylene glycol is preferably 6-8 parts by weight.
  • the descaling whitening agent is preferably used in a dilution volume concentration of from 700 to 100 ml/liter and a pH of not more than 2.
  • nitric acid, potassium permanganate provides oxidative properties.
  • Fluorine in ammonium hydrogen fluoride provides the primary reaction, and phosphoric acid helps provide acidity and acts as a buffer.
  • Ethylene glycol, nonylphenol ethoxylate, and citric acid make the reaction uniform without pitting corrosion.
  • the descaling whitening agent of the present embodiment is suitable for various cast aluminum workpieces. Since the die-cast aluminum workpiece such as die-cast aluminum alloy has high silicon content, the descaling whitening agent can effectively remove black ash and whitewash.
  • An embodiment of the present invention further provides a method for descaling and whitening the surface of a cast aluminum workpiece, which comprises the following steps: preparing a descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a washing White solution, the cast aluminum workpiece is treated with a whitewashing solution, and after a predetermined daytime treatment, it is washed with water.
  • the cast aluminum workpiece is degreased and then washed.
  • the cast aluminum workpiece is solution-treated, and the cast aluminum workpiece is washed with water, and then the surface of the cast aluminum workpiece is passivated, and then washed and dried.
  • the whitening solution is treated by immersing the cast aluminum workpiece with a whitening solution at a treatment temperature of 10-30 ° C, and the immersion cast aluminum workpiece is between 10 and 120 seconds.
  • the descaling whitening agent is preferably used in an amount of from 700 to 1000 ml/liter, preferably from 800 to 950 ml/liter, and a pH of less than 2.
  • the whitewashing solution may be prepared in a cleaning tank, which adopts an acid-resistant plastic tank, a glass steel tank or a low carbon steel, and the glass fiber reinforced plastic tank or the low carbon steel is lined with a PVC plastic, and the treated concrete will be treated.
  • the cast aluminum workpiece is immersed in the bath to wash the white solution.
  • the embodiment of the invention further provides a cast aluminum workpiece, the surface of which is subjected to surface treatment by the surface descaling and whitening treatment method of the cast aluminum workpiece as described above, and then the protective film is formed by spraying and electroplating.
  • the cast aluminum workpiece is preferably a cast aluminum alloy workpiece, and of course can be used for other metal workpieces that require descaling and whitening treatment.
  • the above descaling whitening agent can effectively remove the stain on the surface of the cast aluminum workpiece, the release agent, the black skin and the black ash generated by the acid etching and the alkali corrosion, and produce a clean and bright surface for subsequent spraying and electroplating. Provides excellent bonding. It is produced without nitrogen oxides and yellow smoke, which is beneficial to the environment and the health of the operators.
  • the above descaling and whitening agent is suitable for various cast aluminum workpieces, for example, high silicon die-cast aluminum materials such as ADC12, ADC10, and A356.
  • the components are mixed according to the following parts by weight: 10 parts of nitric acid, 10 parts of ammonium hydrogen fluoride, 2 parts of nonylphenol ethoxylate, 30 parts of phosphoric acid, 5 parts of potassium permanganate, 1 part of citric acid, 5 parts Ethylene glycol, 37 parts water, stirred, evenly mixed, formulated into a descaling whitening agent.
  • Treatment method preparing the descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, the volume concentration of the whitening agent is 700 ml / liter, and the control PH value is less than 2, Then, the cast aluminum workpiece was treated with a whitewashing solution, and after 1 minute of treatment, it was washed with water.
  • the components are mixed according to the following parts by weight: 12 parts of nitric acid, 12 parts of ammonium hydrogen fluoride, 3 parts of nonylphenol ethoxylate, 35 parts of phosphoric acid, 6 parts of potassium permanganate, 2 parts of citric acid, 5 parts Ethylene glycol, 35 parts water, stirred, mixed Evenly, it is formulated into a descaling and whitening agent.
  • Treatment method preparing the descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, the volume concentration of the whitening agent is 800 ml / liter, and the control PH value is less than 2, Then, the cast aluminum workpiece was treated with a whitewashing solution, and after 1 minute of treatment, it was washed with water.
  • the ingredients are mixed according to the following parts by weight: 15 parts of nitric acid, 15 parts of ammonium hydrogen fluoride, 3 parts of nonylphenol ethoxylate, 36 parts of phosphoric acid, 8 parts of potassium permanganate, 1 part of citric acid, 6 parts Ethylene glycol, 46 parts water, stirred, evenly mixed, formulated into a descaling whitening agent.
  • Processing method preparing the descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, the volume concentration of the whitening agent is 900 ml / liter, and the control PH value is less than 2, Then, the cast aluminum workpiece was treated with a whitewashing solution, and after 1 minute of treatment, it was washed with water.
  • the components are mixed according to the following parts by weight: 18 parts of nitric acid, 18 parts of ammonium hydrogen fluoride, 4 parts of nonylphenol ethoxylate, 38 parts of phosphoric acid, 9 parts of potassium permanganate, 1.5 parts of citric acid, 7.5 parts Glycol, 54 parts water, stirring
  • Treatment method preparing the descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, the volume concentration of the whitening agent is 900 ml / liter, and the control PH value is less than 2, Then, the cast aluminum workpiece was treated with a whitewashing solution, and after 1 minute of treatment, it was washed with water.
  • the components are mixed according to the following parts by weight: 20 parts of nitric acid, 20 parts of ammonium hydrogen fluoride, 5 parts of nonylphenol ethoxylate, 40 parts of phosphoric acid, 10 parts of potassium permanganate, 2 parts of citric acid, 10 parts Ethylene glycol, 60 parts water, stirred, evenly mixed, formulated into a descaling whitening agent.
  • Treatment method preparing the descaling whitening agent as described above; dissolving the descaling whitening agent in water to prepare a whitening solution, the volume concentration of the whitening agent is 1000 ml / liter, and the control PH value is less than 2, Then, the cast aluminum workpiece was treated with a whitewashing solution, and after 1 minute of treatment, it was washed with water.

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  • 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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract

一种铸铝工件除垢洗白剂，用于铸铝工件表面处理，其包括如下重量份数的成分：10-20份硝酸，10-20份的氟化氢铵，2-5份壬基酚聚氧乙烯醚，30-40份磷酸，5-10份高锰酸钾，1-2份柠檬酸，5-10份乙二醇，30-60份水。以及一种铸铝工件表面除垢洗白处理方法和一种铸铝工件。

Description

发明名称:铸铝工件除垢洗白剂、 铸铝工件及其表面除垢洗白方法 技术领域
[0001] 本发明涉及金属表面处理技术领域， 具体涉及一种铸铝工件除垢洗白剂、 铸铝 工件及其表面除垢洗白方法。
背景技术
[0002] 为提高产品表面性能或者外观， 通常对工件表面处理技术。 例如， 铝、 铁合金 的表面处理工艺深入各行各业中。 而且， 大多数工作在进及其行表面处理前还 需要经过预处理， 例如， 进行清洗， 除垢除油等表面处理
[0003] 通常， 压铸铝合金因含硅量高， 经过强酸碱处理会产生的大量黑灰。 通常用的 化学处理方法是浓硝酸加氢氟酸， 这种方法反应激烈， 产生大量黄烟， 剧毒。 技术问题
[0004] 有鉴于此， 提供一种除垢清洗效果好、 不产生黄烟的铸铝工件除垢洗白剂， 以 及铸铝工件及其表面除垢洗白处理方法， 能有效去除铸铝工件表面的污斑、 脱 模剂、 黑皮和经酸蚀， 碱腐蚀后产生的黑灰， 产生清洁光亮之表面， 为后续喷 涂、 电镀提供优异的结合力。
问题的解决方案
技术解决方案
[0005] 一种铸铝工件除垢洗白剂， 用于铸铝工件表面处理， 包括如下重量份数的成分
： 10-20份硝酸， 10-20份的氟化氢铵， 2-5份壬基酚聚氧乙烯醚， 30-40份磷酸， 5
-10份高锰酸钾， 1-2份柠檬酸， 5-10份乙二醇， 30-60份水。
[0006] 一种铸铝工件表面除垢洗白处理方法， 其包括下列步骤： 配制如上所述的除垢 洗白剂； 将除垢洗白剂溶于水中配制成洗白溶液， 用洗白溶液处理铸铝工件， 经过预定吋间处理后， 水洗。
[0007] 以及， 一种铸铝工件， 其表面经过如上所述的铸铝工件表面除垢洗白处理方法 进行表面处理， 再通过喷涂、 电镀形成保护膜。
发明的有益效果 有益效果
[0008] 上述除垢洗白剂能有效去除铸铝工件表面的污斑、 脱模剂、 黑皮和经酸蚀， 碱 腐蚀后产生的黑灰， 产生清洁光亮之表面， 为后续喷涂、 电镀提供优异的结合 力。 操作吋无氮氧化物和黄烟气体产生， 有利于环保和操作员身体健康。 上述 除垢洗白剂适合于各种铸铝工件， 例如， ADC12、 ADC10、 A356等高硅压铸铝 材质。
本发明的实施方式
[0009] 以下将结合具体实施例对本发明进行详细说明。
[0010] 本发明实施例提供一种铸铝工件除垢洗白剂， 用于铸铝的工件表面预处理， 包 括如下重量份数的成分： 10-20份硝酸， 10-20份的氟化氢铵， 2-5份壬基酚聚氧 乙烯醚， 30-40份磷酸， 5-10份高锰酸钾， 1-2份柠檬酸， 5-10份乙二醇， 30-60份 水。
[0011] 具体地， 所述硝酸的重量份数优选为 12-15份， 所述氟化氢铵的重量份数优选 为 12-16份。 优选地， 所述磷酸的重量份数为 32-36份， 所述高锰酸钾的重量份数 为 6-8份。 优选地， 所述壬基酚聚氧乙烯醚的重量份数为 2-3份。 乙二醇的重量份 数优选为 6-8份。 在使用吋， 所述除垢洗白剂使用吋稀释体积浓度优选为 700-100 0毫升 /升， PH值不大于 2。
[0012] 在上述除垢洗白剂中， 通过控制各成分配比平衡， 以达到较佳除垢洗白效果。
例如， 硝酸， 高锰酸钾提供氧化性。 氟化氢铵中的氟提供主要反应， 磷酸帮助 提供酸度并且作为缓冲剂。 乙二醇、 壬基酚聚氧乙烯醚、 柠檬酸使反应均匀不 产生点腐蚀。
[0013] 本实施例的除垢洗白剂适用于各种铸铝工件， 由于压铸铝工件如压铸铝合金因 含硅量高， 采用该除垢洗白剂能有效去除黑灰和洗白。
[0014] 本发明实施例还提供一种铸铝工件表面除垢洗白处理方法， 其包括下列步骤： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶液， 用洗白 溶液处理铸铝工件， 经过预定吋间处理后， 水洗。
[0015] 具体地， 在用洗白溶液处理铸铝工件前， 先对铸铝工件作除油处理， 再用洗白 溶液处理铸铝工件， 并水洗铸铝工件， 然后再钝化铸铝工件表面， 再水洗干燥 。 优选地， 所述洗白溶液处理吋用洗白溶液浸泡铸铝工件， 处理温度为 10-30°C ， 所述浸泡铸铝工件吋间为 10-120秒。 另外， 除垢洗白剂使用吋稀释体积浓度优 选为 700- 1000毫升 /升， 优选为 800-950毫升 /升， PH值小于 2。
[0016] 使用吋， 可将洗白溶液在清洗槽配制好， 所述清洗槽采用耐酸塑料槽、 玻璃钢 槽或低碳钢， 所述玻璃钢槽或低碳钢采用 PVC塑料内衬， 处理吋将铸铝工件浸入 槽内洗白溶液中。
[0017] 本发明实施例还提供一种铸铝工件， 其表面经过如上所述的铸铝工件表面除垢 洗白处理方法进行表面处理， 再通过喷涂、 电镀形成保护膜。 铸铝工件优选为 铸铝合金工件， 当然还可以用于其他需要进行除垢洗白处理的金属工件。
[0018] 上述除垢洗白剂能有效去除铸铝工件表面的污斑、 脱模剂、 黑皮和经酸蚀， 碱 腐蚀后产生的黑灰， 产生清洁光亮之表面， 为后续喷涂、 电镀提供优异的结合 力。 操作吋无氮氧化物和黄烟气体产生， 有利于环保和操作员身体健康。 上述 除垢洗白剂适合于各种铸铝工件， 例如， ADC12、 ADC10、 A356等高硅压铸铝 材质。
[0019] 以下通过具体实例说明本发明实施例的除垢洗白剂及其钝化处理方法等方面。
[0020] 实施例 1
[0021] 按照下列重量份数混合各成分： 10份硝酸， 10份的氟化氢铵， 2份壬基酚聚氧 乙烯醚， 30份磷酸， 5份高锰酸钾， 1份柠檬酸， 5份乙二醇， 37份水， 搅拌， 混 合均匀， 配成除垢洗白剂。
[0022] 处理方法： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶 液， 洗白剂的体积浓度为 700毫升 /升， 控制 PH值小于 2， 然后， 用洗白溶液处理 铸铝工件， 经过 1分钟处理后， 水洗。
[0023] 经过上述洗白溶液处理后， 观察工件表面， 发现工件表面洁白干净， 无黑灰， 无斑点， 工件水膜均匀， 无油污。
[0024] 实施例 2
[0025] 按照下列重量份数混合各成分： 12份硝酸， 12份的氟化氢铵， 3份壬基酚聚氧 乙烯醚， 35份磷酸， 6份高锰酸钾， 2份柠檬酸， 5份乙二醇， 35份水， 搅拌， 混 合均匀， 配成除垢洗白剂。
[0026] 处理方法： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶 液， 洗白剂的体积浓度为 800毫升 /升， 控制 PH值小于 2， 然后， 用洗白溶液处理 铸铝工件， 经过 1分钟处理后， 水洗。
[0027] 经过上述洗白溶液处理后， 观察工件表面， 发现工件表面洁白干净， 无黑灰， 无斑点， 工件水膜均匀， 无油污。
[0028] 实施例 3
[0029] 按照下列重量份数混合各成分： 15份硝酸， 15份的氟化氢铵， 3份壬基酚聚氧 乙烯醚， 36份磷酸， 8份高锰酸钾， 1份柠檬酸， 6份乙二醇， 46份水， 搅拌， 混 合均匀， 配成除垢洗白剂。
[0030] 处理方法： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶 液， 洗白剂的体积浓度为 900毫升 /升， 控制 PH值小于 2， 然后， 用洗白溶液处理 铸铝工件， 经过 1分钟处理后， 水洗。
[0031] 经过上述洗白溶液处理后， 观察工件表面， 发现工件表面洁白干净， 无黑灰， 无斑点， 工件水膜均匀， 无油污。
[0032] 实施例 4
[0033] 按照下列重量份数混合各成分： 18份硝酸， 18份的氟化氢铵， 4份壬基酚聚氧 乙烯醚， 38份磷酸， 9份高锰酸钾， 1.5份柠檬酸， 7.5份乙二醇， 54份水， 搅拌
， 混合均匀， 配成除垢洗白剂。
[0034] 处理方法： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶 液， 洗白剂的体积浓度为 900毫升 /升， 控制 PH值小于 2， 然后， 用洗白溶液处理 铸铝工件， 经过 1分钟处理后， 水洗。
[0035] 经过上述洗白溶液处理后， 观察工件表面， 发现工件表面洁白干净， 无黑灰， 无斑点， 工件水膜均匀， 无油污。
[0036] 实施例 5
[0037] 按照下列重量份数混合各成分： 20份硝酸， 20份的氟化氢铵， 5份壬基酚聚氧 乙烯醚， 40份磷酸， 10份高锰酸钾， 2份柠檬酸， 10份乙二醇， 60份水， 搅拌， 混合均匀， 配成除垢洗白剂。 [0038] 处理方法： 配制如上所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗白溶 液， 洗白剂的体积浓度为 1000毫升 /升， 控制 PH值小于 2， 然后， 用洗白溶液处 理铸铝工件， 经过 1分钟处理后， 水洗。
[0039] 经过上述洗白溶液处理后， 观察工件表面， 发现工件表面洁白干净， 无黑灰， 无斑点， 工件水膜均匀， 无油污。
[0040] 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

权利要求书
一种铸铝工件除垢洗白剂， 用于铸铝工件表面处理， 其特征在于， 包 括如下重量份数的成分： 10-20份硝酸， 10-20份的氟化氢铵， 2-5份壬 基酚聚氧乙烯醚， 30-40份磷酸， 5-10份高锰酸钾， 1-2份柠檬酸， 5-1 0份乙二醇， 30-60份水。
如权利要求 1所述的除垢洗白剂， 其特征在于， 所述硝酸的重量份数 为 12- 15份。
如权利要求 1所述的除垢洗白剂， 其特征在于， 所述氟化氢铵的重量 份数为 12-16份。
如权利要求 1所述的除垢洗白剂， 其特征在于， 所述磷酸的重量份数 为 32-36份。
如权利要求 1所述的除垢洗白剂， 其特征在于， 所述高锰酸钾的重量 份数为 6-8份。
如权利要求 1所述的除垢洗白剂， 其特征在于， 所述除垢洗白剂使用 吋稀释体积浓度为 700- 1000毫升 /升， 所述除垢洗白剂使用吋 PH值不 大于 2。
一种铸铝工件表面除垢洗白处理方法， 其包括下列步骤： 配制如权利 要求 1-6任一项所述的除垢洗白剂； 将除垢洗白剂溶于水中配制成洗 白溶液， 用洗白溶液处理铸铝工件， 经过预定吋间处理后， 水洗。 如权利要求 7所述的铸铝工件表面除垢洗白处理方法， 其特征在于， 在用洗白溶液处理铸铝工件前， 先对铸铝工件作除油处理， 在洗白溶 液处理铸铝工件吋， 采用超声波水洗铸铝工件， 然后再钝化铸铝工件 表面。
如权利要求 7所述的铸铝工件表面除垢洗白处理方法， 其特征在于， 所述洗白溶液处理吋用洗白溶液浸泡或喷淋铸铝工件， 处理温度为 10 -30°C， 所述浸泡铸铝工件吋间为 10- 120秒。
一种铸铝工件， 其特征在于， 所述铸铝工件表面经过如权利要求 7所 述的铸铝工件表面除垢洗白处理方法进行表面处理， 再通过喷涂、 电 镀形成保护膜。
PCT/CN2016/088706 2016-07-05 2016-07-05 铸铝工件除垢洗白剂、铸铝工件及其表面除垢洗白方法 WO2018006274A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1152632A (zh) * 1996-10-17 1997-06-25 周国桢 铝材氧化预处理的一步法前处理液
CN101230465A (zh) * 2007-01-24 2008-07-30 天津市华阳新兴科技有限公司 铝材专用清洗剂
JP2009179860A (ja) * 2008-01-31 2009-08-13 Isobe Toso Kk 素地調整工法
CN104746091A (zh) * 2015-04-28 2015-07-01 深圳市崇辉表面技术开发有限公司 一种铸造铝合金洗白除垢溶液
CN105483718A (zh) * 2016-01-19 2016-04-13 博罗县东明化工有限公司 洗白除垢液及压铸铝合金前处理方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1152632A (zh) * 1996-10-17 1997-06-25 周国桢 铝材氧化预处理的一步法前处理液
CN101230465A (zh) * 2007-01-24 2008-07-30 天津市华阳新兴科技有限公司 铝材专用清洗剂
JP2009179860A (ja) * 2008-01-31 2009-08-13 Isobe Toso Kk 素地調整工法
CN104746091A (zh) * 2015-04-28 2015-07-01 深圳市崇辉表面技术开发有限公司 一种铸造铝合金洗白除垢溶液
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