WO2017219371A1 - Passivator, zinc plated workpiece and passivation treatment method therefor - Google Patents
Passivator, zinc plated workpiece and passivation treatment method therefor Download PDFInfo
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- WO2017219371A1 WO2017219371A1 PCT/CN2016/087143 CN2016087143W WO2017219371A1 WO 2017219371 A1 WO2017219371 A1 WO 2017219371A1 CN 2016087143 W CN2016087143 W CN 2016087143W WO 2017219371 A1 WO2017219371 A1 WO 2017219371A1
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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
- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/44—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 molybdates, tungstates or vanadates containing also fluorides or complex fluorides
Definitions
- the present invention relates to the technical field of surface treatment of galvanized workpieces, and in particular to a passivating agent, a galvanized workpiece and a passivation treatment method thereof.
- the surface treatment technology of the workpiece is usually applied.
- the surface treatment of galvanized, aluminum, iron and their alloys goes deep into all walks of life.
- most workpieces require pre-treatment before surface treatment, for example, cleaning, decontamination and degreasing, and metal parts for some applications require passivation.
- passivation is often performed after galvanizing to protect the galvanized film. If the passivation treatment is not performed, the galvanized workpiece is easily reoxidized to lose its luster.
- Most of the existing passivating agents contain hexavalent chromium or trivalent chromium, which cannot meet environmental protection requirements. Chromium-free is rare and immature, has a poor passivation effect, has poor corrosion resistance, and is easily oxidized.
- a passivating agent which is easy to use, safe and environmentally friendly, has good passivation effect, and a passivation method of a galvanizing workpiece and a galvanized workpiece obtained by passivation treatment are provided.
- a passivating agent comprising 100 parts by weight, including the following parts by weight: 0.8-2 parts of sodium molybdate or potassium molybdate, 1-4 parts of phosphoric acid, 0.33-2 parts of ammonium hydrogen fluoride, 0.5- 2 parts of phytic acid and the balance of water.
- a method for passivating a galvanized workpiece comprising the steps of: formulating a passivating agent as described above; dissolving the passivating agent in water to form a passivating agent solution, and dissolving the passivating agent in the passivating agent solution The ratio is 5 ⁇ 3 ⁇ 4-8 wt%; the galvanized workpiece is immersed in the passivating solution, and after a predetermined daytime treatment, the galvanized workpiece is washed with water and dried.
- the galvanized workpiece is not easily oxidized, and the gloss is preserved for a long time.
- the passivating agent has a small dosage, low energy consumption, simple operation, good corrosion resistance, and is non-toxic and environmentally friendly.
- An embodiment of the present invention provides a passivating agent for surface pretreatment of a galvanized workpiece, comprising 100 parts by weight, including the following parts by weight: 0.8-2 parts of sodium molybdate or potassium molybdate, 1 - 4 parts phosphoric acid, 0.33-2 parts ammonium hydrogen fluoride, 0.5-2 parts phytic acid and the balance water.
- the sodium molybdate or potassium molybdate is in an amount of from 1 to 1.5 parts by weight, more preferably sodium molybdate.
- the parts by weight of the phosphoric acid is preferably 2-3 parts
- the parts by weight of the ammonium hydrogen fluoride is preferably 0.5-1.5 parts
- the parts by weight of the phytic acid are preferably 1-1.5 parts
- the rest is water, passing through water.
- the passivating agent is used in an amount of from 5% to 8% by weight.
- Embodiments of the present invention also provide a galvanizing workpiece passivation method, comprising the steps of: formulating a passivating agent as described above; dissolving the passivating agent in water to form a passivating agent solution, in a passivating agent The ratio of the passivating agent in the solution is 5 ⁇ 3 ⁇ 4-8 wt%; the galvanized workpiece is immersed in the passivating solution, and after the predetermined inter-turn treatment, the galvanized workpiece is washed with water and dried.
- the ratio of the passivating agent in the passivating agent solution is 6%-7 wt ⁇ 3 ⁇ 4, and the predetermined turn is 5-10 minutes.
- the surface of the galvanized workpiece is clean and bright, does not oxidize for a long time, does not change color, and the whole passivation treatment method is simple, environmentally friendly, convenient to operate, and low in use cost.
- Embodiments of the present invention also provide a galvanized workpiece which is processed by the galvanizing workpiece passivation method as described above, so that the galvanized workpiece forms a clean and bright surface, which does not oxidize for a long time and does not change color.
- the ingredients are mixed in the following parts by weight: 0.8 parts of sodium molybdate, 1 part of phosphoric acid, 0.33 parts of ammonium hydrogen fluoride, 0.5 parts of phytic acid, and the balance water.
- Processing method preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 5%; immersing the galvanized workpiece into the passivating agent In the solution, after 5 minutes of treatment, the galvanized workpiece was washed with water and dried.
- ingredients are mixed in the following parts by weight (total 100 parts by weight): 1 part sodium molybdate, 1.5 parts phosphoric acid,
- Processing method preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 6%; immersing the galvanized workpiece into the passivating agent In the solution, after 8 minutes of treatment, the galvanized workpiece was washed with water and dried.
- ingredients are mixed in the following parts by weight (total amount is 100 parts by weight): 1.5 parts of sodium molybdate, 2 parts of phosphoric acid
- Processing method preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 7%; immersing the galvanized workpiece into the passivating agent In the solution, after 6 minutes of treatment, the galvanized workpiece was washed with water and dried.
- the ingredients were mixed in the following parts by weight: 2 parts of sodium molybdate, 4 parts of phosphoric acid, 2 parts of ammonium hydrogen fluoride, 2 parts of phytic acid, and the balance water.
- Treatment method preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 8%; immersing the galvanized workpiece into the passivating agent In the solution, after 10 minutes of treatment
Abstract
Provided is a passivator, comprising the following ingredients in parts by weight: 0.8-2 parts of sodium molybdate or potassium molybdate, 1-4 parts of phosphoric acid, 0.33-2 parts of ammonium hydrogen fluoride, 0.5-2 parts of phytic acid and the balance of water. Also provided are a method for performing a passivation treatment on a zinc plated workpiece using the passivator and the zinc plated workpiece obtained therefrom.
Description
发明名称：钝化剂、 镀锌工件及其钝化处理方法 技术领域 Title: Passivation agent, galvanized workpiece and passivation treatment method
[0001] 本发明涉及镀锌工件表面处理技术领域， 具体涉及一种钝化剂、 镀锌工件及其 钝化处理方法。 [0001] The present invention relates to the technical field of surface treatment of galvanized workpieces, and in particular to a passivating agent, a galvanized workpiece and a passivation 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， 镀锌、 铝、 铁及其合金的表面处理工艺深入各行各业中。 而且， 大多数工件在进行表面处 理前还需要经过预处理， 例如， 进行清洗， 除污除油， 某些用途的金属工件还 需要进行钝化处理。 [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 galvanized, aluminum, iron and their alloys goes deep into all walks of life. Moreover, most workpieces require pre-treatment before surface treatment, for example, cleaning, decontamination and degreasing, and metal parts for some applications require passivation.
[0003] 一般在机械加工及电子电气行业， 在镀锌后经常进行钝化处理， 以保护镀锌膜 。 如果不进行钝化处理， 镀锌后的工件很容易重新氧化而失去光泽。 现有钝化 剂大多含六价铬或者三价铬， 不能满足环保要求。 不含铬的极少且不成熟， 钝 化效果不好， 防腐性能不佳， 容易氧化。 [0003] Generally in the machining and electrical and electronics industries, passivation is often performed after galvanizing to protect the galvanized film. If the passivation treatment is not performed, the galvanized workpiece is easily reoxidized to lose its luster. Most of the existing passivating agents contain hexavalent chromium or trivalent chromium, which cannot meet environmental protection requirements. Chromium-free is rare and immature, has a poor passivation effect, has poor corrosion resistance, and is easily oxidized.
技术问题 technical problem
[0004] 有鉴于此， 提供一种使用简便， 安全环保， 钝化效果好的钝化剂， 以及镀锌工 件钝化方法和经过钝化处理后制得的镀锌工件。 [0004] In view of the above, a passivating agent which is easy to use, safe and environmentally friendly, has good passivation effect, and a passivation method of a galvanizing workpiece and a galvanized workpiece obtained by passivation treatment are provided.
问题的解决方案 Problem solution
技术解决方案 Technical solution
[0005] 一种钝化剂， 以 100重量份计， 包括如下重量份数的成分： 0.8-2份钼酸钠或钼 酸钾， 1-4份磷酸， 0.33-2份氟化氢铵， 0.5-2份植酸和余量水。 [0005] A passivating agent, comprising 100 parts by weight, including the following parts by weight: 0.8-2 parts of sodium molybdate or potassium molybdate, 1-4 parts of phosphoric acid, 0.33-2 parts of ammonium hydrogen fluoride, 0.5- 2 parts of phytic acid and the balance of water.
[0006] 一种镀锌工件钝化方法， 其包括下列步骤： 配制如上所述的钝化剂； 将钝化剂 溶于水中配制成钝化剂溶液， 在钝化剂溶液中钝化剂配比为 5<¾-8 wt%; 将镀锌 工件浸入钝化剂溶液中， 经过预定吋间处理后， 水洗镀锌工件， 干燥。 [0006] A method for passivating a galvanized workpiece, comprising the steps of: formulating a passivating agent as described above; dissolving the passivating agent in water to form a passivating agent solution, and dissolving the passivating agent in the passivating agent solution The ratio is 5<3⁄4-8 wt%; the galvanized workpiece is immersed in the passivating solution, and after a predetermined daytime treatment, the galvanized workpiece is washed with water and dried.
[0007] 以及， 一种镀锌工件， 其表面通过如上所述的镀锌工件钝化方法进行处理。 [0007] Also, a galvanized workpiece whose surface is treated by a galvanizing workpiece passivation method as described above.
发明的有益效果 Advantageous effects of the invention
有益效果
[0008] 经过上述钝化剂处理后， 镀锌工件不容易被氧化， 长久保存光泽。 此钝化剂配 比用量少， 能耗低， 操作简便， 耐蚀性能好， 无毒环保。 Beneficial effect [0008] After the above passivating agent treatment, the galvanized workpiece is not easily oxidized, and the gloss is preserved for a long time. The passivating agent has a small dosage, low energy consumption, simple operation, good corrosion resistance, and is non-toxic and environmentally friendly.
[0009] 本发明的实施方式 Embodiments of the invention
[0010] 以下将结合具体实施例对本发明进行详细说明。 [0010] Hereinafter, the present invention will be described in detail in conjunction with specific embodiments.
[0011] 本发明实施例提供一种钝化剂， 用于镀锌工件表面预处理， 以 100重量份计， 包括如下重量份数的成分： 0.8-2份钼酸钠或钼酸钾， 1-4份磷酸， 0.33-2份氟化 氢铵， 0.5-2份植酸和余量水。 [0011] An embodiment of the present invention provides a passivating agent for surface pretreatment of a galvanized workpiece, comprising 100 parts by weight, including the following parts by weight: 0.8-2 parts of sodium molybdate or potassium molybdate, 1 - 4 parts phosphoric acid, 0.33-2 parts ammonium hydrogen fluoride, 0.5-2 parts phytic acid and the balance water.
[0012] 具体地， 所述钼酸钠或钼酸钾的重量份数为 1-1.5份， 更优选采用钼酸钠。 所述 磷酸的重量份数优选为 2-3份， 所述氟化氢铵的重量份数优选为 0.5-1.5份， 所述 植酸的重量份数优选为 1-1.5份， 其余为水， 通过水来配制合适浓度的试剂。 优 选地， 钝化剂使用吋配比为 5%-8 wt%。 [0012] Specifically, the sodium molybdate or potassium molybdate is in an amount of from 1 to 1.5 parts by weight, more preferably sodium molybdate. The parts by weight of the phosphoric acid is preferably 2-3 parts, the parts by weight of the ammonium hydrogen fluoride is preferably 0.5-1.5 parts, and the parts by weight of the phytic acid are preferably 1-1.5 parts, and the rest is water, passing through water. To prepare a suitable concentration of reagents. Preferably, the passivating agent is used in an amount of from 5% to 8% by weight.
[0013] 在上述钝化剂中， 通过控制各成分配比平衡， 以达到较佳钝化效果。 钼酸钠或 钼酸钾、 植酸为主要钝化成分， 磷酸控制及稳定 PH值， 氟化氢铵作为催化成分 [0013] In the above passivating agent, a better passivation effect is achieved by controlling the balance of the respective distribution ratios. Sodium molybdate or potassium molybdate, phytic acid as the main passivation component, phosphoric acid control and stabilization of pH, ammonium bifluoride as catalytic component
[0014] 本发明实施例还提供一种镀锌工件钝化方法， 其包括下列步骤： 配制如上所述 的钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶液中钝化剂配比 为 5<¾-8 wt%; 将镀锌工件浸入钝化剂溶液中， 经过预定吋间处理后， 水洗镀锌 工件， 干燥。 [0014] Embodiments of the present invention also provide a galvanizing workpiece passivation method, comprising the steps of: formulating a passivating agent as described above; dissolving the passivating agent in water to form a passivating agent solution, in a passivating agent The ratio of the passivating agent in the solution is 5<3⁄4-8 wt%; the galvanized workpiece is immersed in the passivating solution, and after the predetermined inter-turn treatment, the galvanized workpiece is washed with water and dried.
[0015] 具体地， 在钝化剂溶液中钝化剂配比为 6%-7wt<¾， 所述预定吋间为 5-10分钟。 [0015] Specifically, the ratio of the passivating agent in the passivating agent solution is 6%-7 wt<3⁄4, and the predetermined turn is 5-10 minutes.
进一步地， 在清洗后， 再钝化， 然后水洗， 干燥。 钝化处理吋， 温度控制在 20°C Further, after washing, it is passivated, then washed with water and dried. Passivation treatment, temperature control at 20 ° C
-25°C， 即常温下进行处理处理。 -25 ° C, that is, treatment at room temperature.
[0016] 经过上述钝化剂处理后， 镀锌工件表面清洁光亮， 长久不氧化， 不变色， 而且 整个钝化处理方法工艺简单、 环保， 操作方便， 使用成本低。 [0016] After the above passivation agent treatment, the surface of the galvanized workpiece is clean and bright, does not oxidize for a long time, does not change color, and the whole passivation treatment method is simple, environmentally friendly, convenient to operate, and low in use cost.
[0017] 本发明实施例还提供一种镀锌工件， 其通过如上所述的镀锌工件钝化方法进行 处理， 使镀锌工件形成清洁光亮的表面， 长久不氧化， 不变色。 [0017] Embodiments of the present invention also provide a galvanized workpiece which is processed by the galvanizing workpiece passivation method as described above, so that the galvanized workpiece forms a clean and bright surface, which does not oxidize for a long time and does not change color.
[0018] 实施例 1 Embodiment 1
[0019] 按照下列重量份数混合各成分 （总量为 100重量份） ： 0.8份钼酸钠， 1份磷酸， 0.33份氟化氢铵， 0.5份植酸， 余量水。
[0020] 处理方法： 配制好钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶 液中钝化剂质量配比为 5%; 将镀锌工件浸入钝化剂溶液中， 经过 5分钟处理后， 水洗镀锌工件， 干燥。 [0019] The ingredients (the total amount is 100 parts by weight) are mixed in the following parts by weight: 0.8 parts of sodium molybdate, 1 part of phosphoric acid, 0.33 parts of ammonium hydrogen fluoride, 0.5 parts of phytic acid, and the balance water. [0020] Processing method: preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 5%; immersing the galvanized workpiece into the passivating agent In the solution, after 5 minutes of treatment, the galvanized workpiece was washed with water and dried.
[0021] 经过上述钝化剂溶液处理后， 观察工件表面， 整个表面清洁光亮， 无水斑、 水 印， 工件中性盐雾测试 72小吋以上。 [0021] After the above-mentioned passivating agent solution treatment, the surface of the workpiece was observed, and the entire surface was clean and bright, with no water spots, water marks, and the neutral salt spray test of the workpiece was more than 72 hours.
[0022] 实施例 2 Embodiment 2
[0023] 按照下列重量份数混合各成分 （总量为 100重量份） ： 1份钼酸钠， 1.5份磷酸， [0023] The ingredients are mixed in the following parts by weight (total 100 parts by weight): 1 part sodium molybdate, 1.5 parts phosphoric acid,
0.5份氟化氢铵， 1份植酸， 余量水。 0.5 parts ammonium hydrogen fluoride, 1 part phytic acid, balance water.
[0024] 处理方法： 配制好钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶 液中钝化剂质量配比为 6%; 将镀锌工件浸入钝化剂溶液中， 经过 8分钟处理后， 水洗镀锌工件， 干燥。 [0024] Processing method: preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 6%; immersing the galvanized workpiece into the passivating agent In the solution, after 8 minutes of treatment, the galvanized workpiece was washed with water and dried.
[0025] 经过上述钝化剂溶液处理后， 经过上述钝化剂溶液处理后， 观察工件表面， 整 个表面清洁光亮， 无水斑、 水印， 工件中性盐雾测试 82小吋以上。 [0025] After the above passivation agent solution is treated, after the passivation agent solution is treated, the surface of the workpiece is observed, and the entire surface is clean and bright, water-free spots, watermarks, and the neutral salt spray test of the workpiece is more than 82 hours.
[0026] 实施例 3 Embodiment 3
[0027] 按照下列重量份数混合各成分 （总量为 100重量份） ： 1.5份钼酸钠， 2份磷酸 [0027] The ingredients are mixed in the following parts by weight (total amount is 100 parts by weight): 1.5 parts of sodium molybdate, 2 parts of phosphoric acid
， 1份氟化氢铵， 1.5份植酸， 余量水。 , 1 part ammonium hydrogen fluoride, 1.5 parts phytic acid, balance water.
[0028] 处理方法： 配制好钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶 液中钝化剂质量配比为 7%; 将镀锌工件浸入钝化剂溶液中， 经过 6分钟处理后， 水洗镀锌工件， 干燥。 [0028] Processing method: preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 7%; immersing the galvanized workpiece into the passivating agent In the solution, after 6 minutes of treatment, the galvanized workpiece was washed with water and dried.
[0029] 经过上述钝化剂溶液处理后， 经过上述钝化剂溶液处理后， 观察工件表面， 整 个表面清洁光亮， 无水斑、 水印， 工件中性盐雾测试 86小吋以上。 [0029] After the above passivation agent solution is treated, after the passivation agent solution is treated, the surface of the workpiece is observed, and the entire surface is clean and bright, water-free spots, watermarks, and the neutral salt spray test of the workpiece is more than 86 hours.
[0030] 实施例 4 Embodiment 4
[0031] 按照下列重量份数混合各成分 （总量为 100重量份） ： 2份钼酸钠， 4份磷酸， 2 份氟化氢铵， 2份植酸， 余量水。 [0031] The ingredients (total amount of 100 parts by weight) were mixed in the following parts by weight: 2 parts of sodium molybdate, 4 parts of phosphoric acid, 2 parts of ammonium hydrogen fluoride, 2 parts of phytic acid, and the balance water.
[0032] 处理方法： 配制好钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶 液中钝化剂质量配比为 8%; 将镀锌工件浸入钝化剂溶液中， 经过 10分钟处理后[0032] Treatment method: preparing a passivating agent; dissolving the passivating agent in water to prepare a passivating agent solution, the passivating agent mass ratio in the passivating agent solution is 8%; immersing the galvanized workpiece into the passivating agent In the solution, after 10 minutes of treatment
， 水洗镀锌工件， 干燥。 , Wash the galvanized workpiece, dry.
[0033] 经过上述钝化剂溶液处理后， 经过上述钝化剂溶液处理后， 观察工件表面， 整
个表面清洁光亮， 无水斑、 水印， 工件中性盐雾测试 80小吋以上。 [0033] After the above passivating agent solution is treated, after the passivating agent solution is processed, the surface of the workpiece is observed, and The surface is clean and bright, with no water spots, watermarks, and the neutral salt spray test of the workpiece is more than 80 hours.
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 can be made by those skilled in the art according to the inventive spirit of the present invention. These changes according to the inventive spirit of the present invention should be included in the present invention. Within the scope of the claimed invention.
Claims
[权利要求 1] 一种钝化剂， 其特征在于， 以 100重量份计， 包括如下重量份数的成 分： 0.8-2份钼酸钠或钼酸钾， 1-4份磷酸， 0.33-2份氟化氢铵， 0.5-2份 植酸和余量水。 [Claim 1] A passivating agent comprising, by weight of 100 parts by weight, of the following components: 0.8-2 parts of sodium molybdate or potassium molybdate, 1-4 parts of phosphoric acid, 0.33-2 Ammonium hydrogen fluoride, 0.5-2 parts phytic acid and balance water.
[权利要求 2] 如权利要求 1所述的钝化剂， 其特征在于， 所述钼酸钠或钼酸钾的重 量份数为 1-1.5份。 [Claim 2] The passivating agent according to claim 1, wherein the sodium molybdate or potassium molybdate is in an amount of from 1 to 1.5 parts by weight.
[权利要求 3] 如权利要求 1所述的钝化剂， 其特征在于， 所述磷酸的重量份数为 2-3 份。 [Claim 3] The passivating agent according to claim 1, wherein the phosphoric acid is in a part by weight of 2-3 parts.
[权利要求 4] 如权利要求 1所述的钝化剂， 其特征在于， 所述氟化氢铵的重量份数 为 0.5-1.5份。 [Claim 4] The passivating agent according to claim 1, wherein the ammonium hydrogen fluoride is in an amount of 0.5 to 1.5 parts by weight.
[权利要求 5] 如权利要求 1所述的钝化剂， 其特征在于， 所述植酸的重量份数为 1-1. [Claim 5] The passivating agent according to claim 1, wherein the phytic acid has a weight fraction of 1-1.
5份。 5 servings.
[权利要求 6] 如权利要求 1所述的钝化剂， 其特征在于， 所述钝化剂选用 1-1.5份的 钼酸钠。 [Claim 6] The passivating agent according to claim 1, wherein the passivating agent is selected from 1-1.5 parts of sodium molybdate.
[权利要求 7] 如权利要求 1所述的钝化剂， 其特征在于， 所述钝化剂使用吋的配比 为 5<¾-8 wt<¾。 [Claim 7] The passivating agent according to claim 1, wherein the passivating agent has a rhodium ratio of 5 < 3⁄4 - 8 wt < 3⁄4.
[权利要求 8] 一种镀锌工件钝化方法， 其包括下列步骤： 配制如权利要求 1-6任一 项所述的钝化剂； 将钝化剂溶于水中配制成钝化剂溶液， 在钝化剂溶 液中钝化剂配比为 5%-8 wt<¾; 将镀锌工件浸入钝化剂溶液中， 经过 预定吋间处理后， 水洗镀锌工件， 干燥。 [Claim 8] A galvanizing workpiece passivation method, comprising the steps of: formulating the passivating agent according to any one of claims 1 to 6; dissolving the passivating agent in water to prepare a passivating agent solution, The ratio of the passivating agent in the passivating solution is 5%-8 wt<3⁄4; the galvanized workpiece is immersed in the passivating solution, and after a predetermined daytime treatment, the galvanized workpiece is washed with water and dried.
[权利要求 9] 如权利要求 8所述的镀锌工件钝化方法， 其特征在于， 镀锌工件预先 经过清洗后， 再钝化， 然后水洗干燥， 所述预定吋间为 5-10分钟。 [Claim 9] The method of passivating a galvanized workpiece according to claim 8, wherein the galvanized workpiece is previously cleaned, then passivated, and then washed with water, and the predetermined turn is 5-10 minutes.
[权利要求 10] 一种镀锌工件， 其特征在于， 所述镀锌工件表面通过如权利要求 8所 述的镀锌工件钝化方法进行处理。
[Claim 10] A galvanized workpiece, characterized in that the galvanized workpiece surface is treated by the galvanizing workpiece passivation method according to claim 8.
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| PCT/CN2016/087143 WO2017219371A1 (en) | 2016-06-24 | 2016-06-24 | Passivator, zinc plated workpiece and passivation treatment method therefor |
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| PCT/CN2016/087143 WO2017219371A1 (en) | 2016-06-24 | 2016-06-24 | Passivator, zinc plated workpiece and passivation treatment method therefor |
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