WO2017214780A1 - Phosphating coating agent, iron piece and method for coating treatment of surface thereof - Google Patents

Phosphating coating agent, iron piece and method for coating treatment of surface thereof Download PDF

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Publication number
WO2017214780A1
WO2017214780A1 PCT/CN2016/085509 CN2016085509W WO2017214780A1 WO 2017214780 A1 WO2017214780 A1 WO 2017214780A1 CN 2016085509 W CN2016085509 W CN 2016085509W WO 2017214780 A1 WO2017214780 A1 WO 2017214780A1
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parts
film
weight
phosphating
sodium
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PCT/CN2016/085509
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French (fr)
Chinese (zh)
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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/CN2016/085509 priority Critical patent/WO2017214780A1/en
Publication of WO2017214780A1 publication Critical patent/WO2017214780A1/en

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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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/46—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates
    • C23C22/47—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates containing also phosphates

Definitions

  • the present invention relates to the field of iron surface treatment technology, and in particular, to a phosphating film agent, an iron member, and a surface film treatment method thereof.
  • Iron film treatment generally uses a film agent to pretreat the iron member to form a film layer on the surface of the iron member for subsequent surface treatment, thereby increasing the bonding force and corrosion resistance of the subsequent film.
  • the current zinc-based bismuth agent needs to be tuned to the iron parts before treatment, and the accelerator is added during the treatment, which is complicated and troublesome to use.
  • a phosphating film agent which is easy to use, does not require a surface adjustment and an accelerator, has low energy consumption, a fine structure, and strong adhesion, and a surface treatment method of iron parts and a film-forming process are provided.
  • the iron pieces that are obtained.
  • a phosphating coating agent for forming a film on the surface of an iron member comprising 1000 parts by weight of the following components by weight: 50-150 parts of phosphoric acid, 100-300 parts of sodium dihydrogen phosphate, 1 - 10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, 0.2-2 parts of sodium oxalate and/or sodium carbonate.
  • a method for treating a surface of a steel member comprising the steps of: formulating the phosphating film agent according to any one of claims 1 to 8; dissolving the phosphating film agent in water to prepare a film solution, In the film solution, the mass percentage of the film agent is 4-6%; the iron piece is immersed in the film agent solution, and the total acidity of the film solution is controlled to be 6-20 pt. After a predetermined time of treatment, the iron piece is washed and dried. .
  • the phosphating film agent has a fine film structure, does not require a surface adjustment and an accelerator, has low energy consumption, and has strong adhesion, and can form a colored film with good corrosion resistance on the surface of the iron piece, and can prevent the iron piece workpiece. Rust after washing.
  • the embodiment of the present invention provides a phosphating film agent for surface treatment of iron parts, comprising 1000 parts by weight, including the following parts by weight: 50-150 parts of phosphoric acid, 100-300 parts of phosphoric acid Sodium hydrogenate, 1-10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, 0.2-2 parts of sodium oxalate and/or sodium carbonate.
  • the parts by weight of the phosphoric acid are 80-100 parts, more preferably 80-90 parts.
  • the parts by weight of sodium dihydrogen phosphate are preferably 150-180 parts, and the parts by weight of the sodium tripolyphosphate is preferably 2-5 parts, and the parts by weight of the sodium fluoride is preferably 10-15 parts.
  • the parts by weight of ammonium heptamolybdate are preferably 8 to 15 parts, and the parts by weight of the oxalic acid are preferably 1 to 3 parts.
  • the sodium oxalate is preferably 0.5 to 1 part by weight, and the sodium carbonate is preferably 0.2 to 1 part by weight.
  • the solution has a total acidity of 6-20 pt when applied.
  • a preferable film forming effect is achieved by controlling the balance of the respective distribution ratios. For example, when the phosphoric acid content is low, the film formation is too slow and too thin, and even film formation is not possible. On the contrary, if the reaction is too fast, the film formation is too fast, the formed film is dissolved again, and the film is not strong enough, so the phosphoric acid is preferred in this embodiment. Parts by weight. Sodium dihydrogen phosphate and ammonium heptamolybdate are the main components of the coating layer, and other components are used as auxiliary components to maintain the balance of the bath.
  • the film formed by the phosphating film agent has fine structure, low energy consumption, firm adhesion, and can form a colored film with good anti-corrosion on the surface of the iron piece, which can prevent the rust after the workpiece is cleaned. .
  • An embodiment of the present invention further provides a method for treating a surface of an iron member, comprising the steps of: preparing a phosphating film agent as described above; dissolving the phosphating film agent in water to prepare a film agent solution, in the film Dissolving agent
  • the liquid medium coating agent has a mass percentage of 4-6%; the iron member is immersed in the coating agent solution to control the total acidity of the coating agent solution to be 6-20 pt, and after a predetermined period of treatment, the iron member is washed with water and dried.
  • the mass percentage of the coating agent in the coating agent solution is preferably 6 ⁇ 3 ⁇ 4, and the total acidity of the coating agent solution is 6-20 pt when the iron member is immersed in the coating agent solution.
  • the phosphating workpiece drying temperature is controlled at 70 ° C - 85 ° C, preferably controlled at about 80 ° C. It is preferred that the iron member is immersed in the coating agent solution for 3 to 10 minutes.
  • the total acidity measurement method is as follows: Pipette lOmL test solution into a 250mL Erlenmeyer flask with pipette, and add 2-3 drops of phenolphthalein indicator solution. Use 0.1 single-dose sodium hydroxide standard droplets until the solution is pink, that is, the final point, the number of milliliters of sodium hydroxide standard solution consumed is the total acidity of the bath.
  • Embodiments of the present invention also provide an iron member which is processed by a surface treatment method of an iron member as described above to form a film on the surface of the iron member.
  • the film protects the iron and has a strong adhesion.
  • the peculiar film agent of the embodiment of the present invention, a treatment method thereof and the like will be described by way of specific examples.
  • the ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 50 parts of phosphoric acid, 100 parts of sodium dihydrogen phosphate, 1 part of sodium tripolyphosphate, 5 parts of sodium fluoride, 5 parts of heptamolybdic acid Ammonium, 1 part oxalic acid, 0.2 parts sodium carbonate
  • Treatment method preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 4% in the film agent solution; and immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 70 degrees to prevent cracks in the film.
  • the components are mixed in the following parts by weight (total amount is 1000 parts by weight): 60 parts of phosphoric acid, 120 parts of sodium dihydrogen phosphate, 2 parts of sodium tripolyphosphate, 6 parts of sodium fluoride, 6 parts of heptamolybdic acid Ammonium, 1 part oxalic acid, 0.2 parts sodium carbonate
  • Treatment method preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 5% in the film agent solution; immersing the iron piece in the film agent solution
  • the total acidity of the coating agent solution is 6-20 pt, and after being treated for 6 minutes at normal temperature, the iron member is washed with water and dried.
  • the film drying temperature should not be too high, should be controlled at about 75 degrees to prevent cracks in the film.
  • the ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 100 parts of phosphoric acid, 200 parts of sodium dihydrogen phosphate, 3 parts of sodium tripolyphosphate, 12 parts of sodium fluoride, 10 parts of heptamolybdic acid Ammonium, 1.2 parts oxalic acid, 0.5 parts sodium carbonate.
  • Treatment method preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 5% in the film agent solution; and immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 80 degrees to prevent cracks in the film.
  • the ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 140 parts of phosphoric acid, 260 parts of sodium dihydrogen phosphate, 8 parts of sodium tripolyphosphate, 20 parts of sodium fluoride, 18 parts of heptamolybdic acid Ammonium, 3 parts oxalic acid, 1 part sodium carbonate
  • Treatment method preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 6% in the film solution; immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 80 degrees to prevent cracks in the film.

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A phosphating coating agent for the pretreatment of the surface of an iron piece, comprising the following components in parts by weight based on 1000 parts by weight: 50-150 parts of phosphoric acid, 100-300 parts of sodium dihydrogen phosphate, 1-10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, and 0.2-2 parts of sodium oxalate and/or sodium carbonate. An iron piece and a method for the coating treatment of the surface thereof are further comprised.

Description

发明名称:磷化皮膜剂、 铁件及其表面皮膜化处理方法 技术领域  Title: Phosphating film agent, iron part and surface film treatment method thereof
[0001] 本发明涉及铁表面处理技术领域， 具体涉及一种磷化皮膜剂、 铁件及其表面皮 膜化处理方法。  [0001] The present invention relates to the field of iron surface treatment technology, and in particular, to a phosphating film agent, an iron member, and a surface film treatment method thereof.
背景技术  Background technique
[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、 铁及其 合金的表面处理工艺深入各行各业中。 而且， 大多数工作在进行表面处理前还 需要经过预处理， 例如， 进行清洗， 除污除油， 某些用途的铁件还需要进行皮 膜化处理。  [0002] In order to improve the surface properties or appearance of a product, the surface treatment technology of the workpiece is usually applied. For example, the surface treatment of aluminum, iron and their alloys goes deep into all walks of life. Moreover, most of the work needs to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and some applications of iron parts need to be filmed.
[0003] 铁皮膜化处理一般釆用皮膜剂对铁件进行预处理， 以在铁件表面形成膜层， 以 便进行后续的表面处理， 增加后续膜的结合力和防腐力。 例如， 现在的锌系轔 化剂处理前需要对铁件进行表调， 处理时需要添加促进剂， 使用起来复杂和麻 烦。  [0003] Iron film treatment generally uses a film agent to pretreat the iron member to form a film layer on the surface of the iron member for subsequent surface treatment, thereby increasing the bonding force and corrosion resistance of the subsequent film. For example, the current zinc-based bismuth agent needs to be tuned to the iron parts before treatment, and the accelerator is added during the treatment, which is complicated and troublesome to use.
技术问题  technical problem
[0004] 有鉴于此， 提供一种使用简便， 无需表调和促进剂， 能耗低、 结构细致、 附着 力牢固的磷化皮膜剂， 以及铁件表面皮膜化处理方法和经过皮膜化处理后制得 的铁件。  [0004] In view of the above, a phosphating film agent which is easy to use, does not require a surface adjustment and an accelerator, has low energy consumption, a fine structure, and strong adhesion, and a surface treatment method of iron parts and a film-forming process are provided. The iron pieces that are obtained.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0005] 一种磷化皮膜剂， 用于在铁件表面形成皮膜， 以 1000重量份计， 包括如下重量 份数的成分： 50-150份磷酸， 100-300份的磷酸二氢钠， 1-10份三聚磷酸钠， 5-30 份氟化钠， 5-20份七钼酸铵， 1-5份草酸， 0.2-2份草酸钠和 /或碳酸钠。  [0005] A phosphating coating agent for forming a film on the surface of an iron member, comprising 1000 parts by weight of the following components by weight: 50-150 parts of phosphoric acid, 100-300 parts of sodium dihydrogen phosphate, 1 - 10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, 0.2-2 parts of sodium oxalate and/or sodium carbonate.
[0006] 一种铁件表面皮膜化处理方法， 其包括下列步骤： 配制如权利要求 1-8任一项 所述的磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在皮膜剂溶液 中皮膜剂的质量百分含量为 4-6%; 将铁件浸入皮膜剂溶液中， 控制皮膜剂溶液 的总酸度为 6-20pt, 经过预定时间处理后， 水洗铁件， 干燥。 [0007] 以及， 一种铁件， 其表面具有通过如上所述的铁件表面皮膜化处理方法形成的 皮膜。 [0006] A method for treating a surface of a steel member, comprising the steps of: formulating the phosphating film agent according to any one of claims 1 to 8; dissolving the phosphating film agent in water to prepare a film solution, In the film solution, the mass percentage of the film agent is 4-6%; the iron piece is immersed in the film agent solution, and the total acidity of the film solution is controlled to be 6-20 pt. After a predetermined time of treatment, the iron piece is washed and dried. . [0007] Also, an iron member having a surface having a film formed by a surface treatment method of an iron member as described above.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0008] 上述磷化皮膜剂形成的膜层结构细致， 无需表调和促进剂， 能耗低、 附着力牢 固， 能在铁件表面上生成具有良好防腐性的彩色的皮膜， 能防止铁件工件清洗 之后返锈。  [0008] The phosphating film agent has a fine film structure, does not require a surface adjustment and an accelerator, has low energy consumption, and has strong adhesion, and can form a colored film with good corrosion resistance on the surface of the iron piece, and can prevent the iron piece workpiece. Rust after washing.
发明实施例  Invention embodiment
本发明的实施方式  Embodiments of the invention
[0009] 以下将结合具体实施例对本发明进行详细说明。 The present invention will be described in detail below with reference to specific embodiments.
[0010] 本发明实施例提供一种磷化皮膜剂， 用于铁件表面预处理， 以 1000重量份计， 包括如下重量份数的成分： 50-150份磷酸， 100-300份的磷酸二氢钠， 1-10份三 聚磷酸钠， 5-30份氟化钠， 5-20份七钼酸铵， 1-5份草酸， 0.2-2份草酸钠和 /或碳 酸钠。  [0010] The embodiment of the present invention provides a phosphating film agent for surface treatment of iron parts, comprising 1000 parts by weight, including the following parts by weight: 50-150 parts of phosphoric acid, 100-300 parts of phosphoric acid Sodium hydrogenate, 1-10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, 0.2-2 parts of sodium oxalate and/or sodium carbonate.
[0011] 具体地， 所述磷酸的重量份数为 80-100份， 更优选为 80-90份。 所述磷酸二氢钠 的重量份数优选为 150-180份， 所述三聚磷酸钠的重量份数优选为 2-5份 所述氟 化钠的重量份数优选为 10-15份， 所述七钼酸铵的重量份数优选为 8-15份， 所述 草酸的重量份数优选为 1-3份。 所述草酸钠的重量份数优选为 0.5-1份， 所述碳酸 钠的重量份数优选为 0.2-1份。 优选地， 皮膜剂应用时的溶液的总酸度为 6-20pt。  Specifically, the parts by weight of the phosphoric acid are 80-100 parts, more preferably 80-90 parts. The parts by weight of sodium dihydrogen phosphate are preferably 150-180 parts, and the parts by weight of the sodium tripolyphosphate is preferably 2-5 parts, and the parts by weight of the sodium fluoride is preferably 10-15 parts. The parts by weight of ammonium heptamolybdate are preferably 8 to 15 parts, and the parts by weight of the oxalic acid are preferably 1 to 3 parts. The sodium oxalate is preferably 0.5 to 1 part by weight, and the sodium carbonate is preferably 0.2 to 1 part by weight. Preferably, the solution has a total acidity of 6-20 pt when applied.
[0012] 在上述磷化皮膜剂中， 通过控制各成分配比平衡， 以达到较佳成膜效果。 例如 , 当磷酸含量低， 成膜则过慢过薄， 甚至不能成膜， 反之则反应过快导致成膜 过快， 刚成的膜又会被溶解， 膜不够牢固， 所以本实施例优选磷酸的重量份数 。 磷酸二氢钠和七钼酸铵作为皮膜层的主要成分， 其他成分作为辅助成分， 共 同维护槽液的平衡。  [0012] In the above phosphating film agent, a preferable film forming effect is achieved by controlling the balance of the respective distribution ratios. For example, when the phosphoric acid content is low, the film formation is too slow and too thin, and even film formation is not possible. On the contrary, if the reaction is too fast, the film formation is too fast, the formed film is dissolved again, and the film is not strong enough, so the phosphoric acid is preferred in this embodiment. Parts by weight. Sodium dihydrogen phosphate and ammonium heptamolybdate are the main components of the coating layer, and other components are used as auxiliary components to maintain the balance of the bath.
[0013] 本发明实施例中， 磷化皮膜剂形成的皮膜结构细致， 能耗低， 附着力牢固， 能 在铁件表面上生成具有良好防腐性的彩色的皮膜， 能防止工件清洗之后返锈。  [0013] In the embodiment of the invention, the film formed by the phosphating film agent has fine structure, low energy consumption, firm adhesion, and can form a colored film with good anti-corrosion on the surface of the iron piece, which can prevent the rust after the workpiece is cleaned. .
[0014] 本发明实施例还提供一种铁件表面皮膜化处理方法， 其包括下列步骤： 配制如 上所述的磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在皮膜剂溶 液中皮膜剂的质量百分含量为 4-6% ; 将铁件浸入皮膜剂溶液中， 控制皮膜剂溶 液的总酸度为 6-20pt， 经过预定时间处理后， 水洗铁件， 干燥。 [0014] An embodiment of the present invention further provides a method for treating a surface of an iron member, comprising the steps of: preparing a phosphating film agent as described above; dissolving the phosphating film agent in water to prepare a film agent solution, in the film Dissolving agent The liquid medium coating agent has a mass percentage of 4-6%; the iron member is immersed in the coating agent solution to control the total acidity of the coating agent solution to be 6-20 pt, and after a predetermined period of treatment, the iron member is washed with water and dried.
[0015] 具体地， 皮膜剂溶液中皮膜剂的质量百分含量优选为 6<¾， 在铁件浸入皮膜剂 溶液时， 控制皮膜剂溶液的总酸度为 6-20pt。 表面处理吋， 磷化后的工件干燥温 度控制在 70°C-85°C， 优选为控制在 80度左右。 铁件浸入皮膜剂溶液的吋间优选 为 3-10分钟。 总酸度计量方式为： 用移液管吸取 lOmL试液于 250mL锥形烧瓶中 , 加 2-3滴酚酞指示液。 用 0.1单量氢氧化钠标准液滴定至溶液呈粉红色， 即为终 点， 所消耗氢氧化钠标准液毫升数即为该槽液的总酸度。  [0015] Specifically, the mass percentage of the coating agent in the coating agent solution is preferably 6<3⁄4, and the total acidity of the coating agent solution is 6-20 pt when the iron member is immersed in the coating agent solution. After the surface treatment, the phosphating workpiece drying temperature is controlled at 70 ° C - 85 ° C, preferably controlled at about 80 ° C. It is preferred that the iron member is immersed in the coating agent solution for 3 to 10 minutes. The total acidity measurement method is as follows: Pipette lOmL test solution into a 250mL Erlenmeyer flask with pipette, and add 2-3 drops of phenolphthalein indicator solution. Use 0.1 single-dose sodium hydroxide standard droplets until the solution is pink, that is, the final point, the number of milliliters of sodium hydroxide standard solution consumed is the total acidity of the bath.
[0016] 本发明实施例还提供一种铁件， 其通过如上所述的铁件表面皮膜化处理方法进 行处理， 在铁件表面形成皮膜。 皮膜可对铁件进行保护， 且附着力牢固。 以下 通过具体实例说明本发明实施例的憐化皮膜剂及其处理方法等方面。  [0016] Embodiments of the present invention also provide an iron member which is processed by a surface treatment method of an iron member as described above to form a film on the surface of the iron member. The film protects the iron and has a strong adhesion. Hereinafter, the peculiar film agent of the embodiment of the present invention, a treatment method thereof and the like will be described by way of specific examples.
[0017] 实施例 1  [0017] Embodiment 1
[0018] 按照下列重量份数混合各成分 （总量为 1000重量份） ： 50份磷酸， 100份的磷 酸二氢钠， 1份三聚磷酸钠， 5份氟化钠， 5份七钼酸铵， 1份草酸， 0.2份碳酸钠  [0018] The ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 50 parts of phosphoric acid, 100 parts of sodium dihydrogen phosphate, 1 part of sodium tripolyphosphate, 5 parts of sodium fluoride, 5 parts of heptamolybdic acid Ammonium, 1 part oxalic acid, 0.2 parts sodium carbonate
[0019] 处理方法： 配制好磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在 皮膜剂溶液中皮膜剂的质量百分含量为 4%; 将铁件浸入皮膜剂溶液中， 控制皮 膜剂溶液的总酸度为 6-20pt， 在常温下， 经过 5分钟处理后， 水洗铁件， 干燥。 皮膜干燥温度不宜过高， 应控制在 70度左右， 防止膜层出现裂痕。 [0019] Treatment method: preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 4% in the film agent solution; and immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 70 degrees to prevent cracks in the film.
[0020] 经过上述皮膜剂溶液处理后， 观察工件表面， 发现铁件表面生成一层彩色皮膜 层， 放置在干燥处可以保证 3月不生锈， 可做铁件涂装的良好中间层。  [0020] After the treatment of the above-mentioned film agent solution, the surface of the workpiece is observed, and a layer of colored film is formed on the surface of the iron piece, and placed in a dry place can ensure no rust in March, and can be used as a good intermediate layer for iron part coating.
[0021] 实施例 2  Embodiment 2
[0022] 按照下列重量份数混合各成分 （总量为 1000重量份） ： 60份磷酸， 120份的磷 酸二氢钠， 2份三聚磷酸钠， 6份氟化钠， 6份七钼酸铵， 1份草酸， 0.2份碳酸钠  [0022] The components are mixed in the following parts by weight (total amount is 1000 parts by weight): 60 parts of phosphoric acid, 120 parts of sodium dihydrogen phosphate, 2 parts of sodium tripolyphosphate, 6 parts of sodium fluoride, 6 parts of heptamolybdic acid Ammonium, 1 part oxalic acid, 0.2 parts sodium carbonate
[0023] 处理方法： 配制好磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在 皮膜剂溶液中皮膜剂的质量百分含量为 5%; 将铁件浸入皮膜剂溶液中， 控制皮 膜剂溶液的总酸度为 6-20pt， 在常温下， 经过 6分钟处理后， 水洗铁件， 干燥。 皮膜干燥温度不宜过高， 应控制在 75度左右， 防止膜层出现裂痕。 [0023] Treatment method: preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 5% in the film agent solution; immersing the iron piece in the film agent solution In the control, the total acidity of the coating agent solution is 6-20 pt, and after being treated for 6 minutes at normal temperature, the iron member is washed with water and dried. The film drying temperature should not be too high, should be controlled at about 75 degrees to prevent cracks in the film.
[0024] 经过上述皮膜剂溶液处理后， 观察工件表面， 发现铁件表面生成一层彩色皮膜 层 （颜色比实施例 1较深） ， 放置在干燥处可以保证 4月不生锈， 可做铁件涂装 的良好中间层。 [0024] After the treatment of the above-mentioned film agent solution, the surface of the workpiece was observed, and it was found that a color film layer was formed on the surface of the iron piece (the color was darker than in Example 1), and it was placed in a dry place to ensure no rust in April, and iron could be made. A good intermediate layer for painting.
[0025] 实施例 3 Embodiment 3
[0026] 按照下列重量份数混合各成分 （总量为 1000重量份） ： 100份磷酸， 200份的磷 酸二氢钠， 3份三聚磷酸钠， 12份氟化钠， 10份七钼酸铵， 1.2份草酸， 0.5份碳 酸钠。  [0026] The ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 100 parts of phosphoric acid, 200 parts of sodium dihydrogen phosphate, 3 parts of sodium tripolyphosphate, 12 parts of sodium fluoride, 10 parts of heptamolybdic acid Ammonium, 1.2 parts oxalic acid, 0.5 parts sodium carbonate.
[0027] 处理方法： 配制好磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在 皮膜剂溶液中皮膜剂的质量百分含量为 5%; 将铁件浸入皮膜剂溶液中， 控制皮 膜剂溶液的总酸度为 6-20pt， 在常温下， 经过 5分钟处理后， 水洗铁件， 干燥。 皮膜干燥温度不宜过高， 应控制在 80度左右， 防止膜层出现裂痕。  [0027] Treatment method: preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 5% in the film agent solution; and immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 80 degrees to prevent cracks in the film.
[0028] 经过上述皮膜剂溶液处理后， 观察工件表面， 发现铁件表面生成一层彩色皮膜 层 （颜色比实施例 2较深） ， 放置在干燥处可以保证 5月不生锈， 可做铁件涂装 的良好中间层。  [0028] After the treatment of the above-mentioned film agent solution, the surface of the workpiece was observed, and it was found that a color film layer was formed on the surface of the iron piece (the color was darker than in Example 2), and it was placed in a dry place to ensure no rust in May, and iron could be made. A good intermediate layer for painting.
[0029] 实施例 4  Embodiment 4
[0030] 按照下列重量份数混合各成分 （总量为 1000重量份） ： 140份磷酸， 260份的磷 酸二氢钠， 8份三聚磷酸钠， 20份氟化钠， 18份七钼酸铵， 3份草酸， 1份碳酸钠  [0030] The ingredients are mixed in the following parts by weight (total amount 1000 parts by weight): 140 parts of phosphoric acid, 260 parts of sodium dihydrogen phosphate, 8 parts of sodium tripolyphosphate, 20 parts of sodium fluoride, 18 parts of heptamolybdic acid Ammonium, 3 parts oxalic acid, 1 part sodium carbonate
[0031] 处理方法： 配制好磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶液， 在 皮膜剂溶液中皮膜剂的质量百分含量为 6%; 将铁件浸入皮膜剂溶液中， 控制皮 膜剂溶液的总酸度为 6-20pt， 在常温下， 经过 5分钟处理后， 水洗铁件， 干燥。 皮膜干燥温度不宜过高， 应控制在 80度左右， 防止膜层出现裂痕。 [0031] Treatment method: preparing a phosphating film agent; dissolving the phosphating film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 6% in the film solution; immersing the iron piece in the film agent solution In the control solution, the total acidity of the solution is 6-20 pt. After the treatment at room temperature for 5 minutes, the iron is washed and dried. The film drying temperature should not be too high, should be controlled at about 80 degrees to prevent cracks in the film.
[0032] 经过上述皮膜剂溶液处理后， 观察工件表面， 发现铁件表面生成一层彩色皮膜 层 （颜色比实施例 3较深， 颜色几乎呈全蓝色） ， 放置在干燥处可以保证 6月不 生锈， 可做铁件涂装的良好中间层。  [0032] After the above-mentioned film solution treatment, the surface of the workpiece was observed, and it was found that a color film layer was formed on the surface of the iron piece (the color was darker than that of Example 3, and the color was almost blue), and it was placed in a dry place to ensure June. It does not rust and can be used as a good intermediate layer for iron painting.
[0033] 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。 It should be noted that the present invention is not limited to the above embodiments, and other changes may be made by those skilled in the art according to the inventive spirit of the present invention, and the changes made according to the inventive spirit of the present invention, All should be included in the scope of the claimed invention.

Claims

一种磷化皮膜剂， 用于在铁件表面形成皮膜， 其特征在于， 以 1000重 量份计， 包括如下重量份数的成分： 50-150份磷酸， 100-300份的磷 酸二氢钠， 1-10份三聚磷酸钠， 5-30份氟化钠， 5-20份七钼酸铵， 1-5 份草酸， 0.2-2份草酸钠和 /或碳酸钠。 A phosphating filming agent for forming a film on a surface of an iron member, characterized by comprising, by weight of 1000 parts by weight, of the following components by weight: 50-150 parts of phosphoric acid, 100-300 parts of sodium dihydrogen phosphate, 1-10 parts of sodium tripolyphosphate, 5-30 parts of sodium fluoride, 5-20 parts of ammonium heptamolybdate, 1-5 parts of oxalic acid, 0.2-2 parts of sodium oxalate and/or sodium carbonate.
如权利要求 1所述的磷化皮膜剂， 其特征在于， 所述磷酸的重量份数 为 80- 100份。 The phosphating film agent according to claim 1, wherein the phosphoric acid is in an amount of from 80 to 100 parts by weight.
如权利要求 1所述的憐化皮膜剂， 其特征在于， 所述磷酸二氢钠的重 量份数为 150-180份。 The peculiar coating agent according to claim 1, wherein the sodium dihydrogen phosphate is in an amount of from 150 to 180 parts by weight.
如权利要求 1所述的磷化皮膜剂， 其特征在于， 所述三聚磷酸钠的重 量份数为 2-5份。 The phosphating coating agent according to claim 1, wherein the sodium tripolyphosphate has a weight fraction of 2 to 5 parts.
如权利要求 1所述的憐化皮膜剂， 其特征在于， 所述氟化钠的重量份 数为 10- 15份 The pity filming agent according to claim 1, wherein the sodium fluoride is 10-15 parts by weight
如权利要求 1所述的磷化皮膜剂， 其特征在于， 所述七钼酸铵的重量 份数为 8- 15份。 The phosphating coating agent according to claim 1, wherein the ammonium heptamolybdate is in an amount of from 8 to 15 parts by weight.
如权利要求 1所述的磷化皮膜剂， 其特征在于， 所述草酸的重量份数 为 1-3份。 The phosphating coating agent according to claim 1, wherein the oxalic acid is in an amount of from 1 to 3 parts by weight.
如权利要求 1所述的磷化皮膜剂， 其特征在于， 所述草酸钠的重量份 数为 0.5-1份， 所述碳酸钠的重量份数为 0.2-1份。 The phosphating coating agent according to claim 1, wherein the sodium oxalate has a weight fraction of 0.5 to 1 part, and the sodium carbonate has a weight fraction of 0.2 to 1 part.
一种铁件表面皮膜化处理方法， 其包括下列步骤： 配制如权利要求 1- 8任一项所述的磷化皮膜剂； 将磷化皮膜剂溶于水中配制成皮膜剂溶 液, 在皮膜剂溶液中皮膜剂的质量百分含量为 4-6%; 将铁件浸入皮 膜剂溶液中， 控制皮膜剂溶液的总酸度为 6-20pt, 经过预定时间处理 后， 水洗铁件， 干燥。 。 A method for treating a surface of an iron member, comprising the steps of: formulating the phosphating film agent according to any one of claims 1 to 8; dissolving the phosphating film agent in water to prepare a film agent solution, in a film agent The mass percentage of the coating agent in the solution is 4-6%; the iron member is immersed in the coating agent solution, and the total acidity of the coating agent solution is controlled to be 6-20 pt. After the predetermined time treatment, the iron member is washed with water and dried. .
一种铁件， 其特征在于， 所述铁件表面通过如权利要求 9所述的铁件 表面皮膜化处理方法形成有皮膜。 An iron member characterized in that the surface of the iron member is formed with a film by the surface treatment method of the iron member according to claim 9.
PCT/CN2016/085509 2016-06-12 2016-06-12 Phosphating coating agent, iron piece and method for coating treatment of surface thereof WO2017214780A1 (en)

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Citations (2)

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CN103422082A (en) * 2012-05-17 2013-12-04 中化化工科学技术研究总院 Neodymium-iron-boron magnetic material zinc-series phosphatization liquid and application method thereof
CN103469191A (en) * 2013-09-23 2013-12-25 无锡阳工机械制造有限公司 Phosphating liquor for surface treatment before automobile coating

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CN103422082A (en) * 2012-05-17 2013-12-04 中化化工科学技术研究总院 Neodymium-iron-boron magnetic material zinc-series phosphatization liquid and application method thereof
CN103469191A (en) * 2013-09-23 2013-12-25 无锡阳工机械制造有限公司 Phosphating liquor for surface treatment before automobile coating

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