CN107794476A - 一种耐腐蚀钢结构件 - Google Patents

一种耐腐蚀钢结构件 Download PDF

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CN107794476A
CN107794476A CN201710810368.8A CN201710810368A CN107794476A CN 107794476 A CN107794476 A CN 107794476A CN 201710810368 A CN201710810368 A CN 201710810368A CN 107794476 A CN107794476 A CN 107794476A
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steel construction
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薛红军
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Shuan Yutong Industry Co Ltd Of Changshu City
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    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C09D5/103—Anti-corrosive paints containing metal dust containing Al
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract

本发明公开了一种耐腐蚀钢结构件，所述钢结构件包括钢结构件本体、热浸镀形成在所述钢结构件本体表面的锌膜层、喷涂在所述锌膜层表面的复合铝膜层；所述钢结构件的耐腐蚀处理包括如下步骤：1）预处理；2）热镀锌；3）喷涂复合防护涂料。通过上述方式，本发明在钢结构件表面依次附着有锌膜层和复合铝膜层，即采用双层防护处理，使钢结构件具有优异的抗海水及盐雾大气腐蚀性，能满足高端海洋钢结构机械设备的使用要求。

Description

一种耐腐蚀钢结构件
技术领域
本发明涉及钢结构件制备技术领域，特别是涉及一种耐腐蚀钢结构件。
背景技术
钢结构件为了提高其耐腐蚀性能，通常采用喷锌、喷铝涂层防护，但国内外大量的实验研究表明，喷锌、喷铝涂层防护处理，都不能保证钢铁在海水、海洋大气中十多年不腐蚀，即现有的钢结构件的耐腐蚀性能还存在一定的缺陷，不能满足高端海洋钢结构机械设备的使用要求。
发明内容
本发明主要解决的技术问题是提供一种耐腐蚀钢结构件，具有双层防护层，能够解决现有钢结构件在耐腐蚀性能上存在的缺陷。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种耐腐蚀钢结构件，所述钢结构件包括钢结构件本体、热浸镀形成在所述钢结构件本体表面的锌膜层、喷涂在所述锌膜层表面的复合铝膜层；
所述钢结构件的耐腐蚀处理包括如下步骤：
1）预处理：对所述钢结构件本体进行酸洗和脱脂处理，然后用清水冲洗并烘干；
2）热镀锌：将步骤1）处理后的钢结构件本体置于镀锌锅内进行热镀锌处理，常温干燥后在所述钢结构本体表面形成锌膜层；
3）喷涂复合防护涂料：对步骤2）处理后的钢结构件本体喷涂铝基复合防护涂料，高温烘干后在锌膜层外形成复合铝膜层，即得到所述耐腐蚀性钢结构件。
在本发明一个较佳实施例中，所述铝基复合防护涂料包括的原料及各原料的质量百分比为：铝粉40%-45%、改性环氧树脂32%-38%、磷酸盐12%-18%、固化剂10%-15%。
在本发明一个较佳实施例中，所述固化剂为多异氰酯预聚物。
在本发明一个较佳实施例中，所述步骤3）中所述的高温烘干温度为180-200℃。
本发明的有益效果是：本发明在钢结构件表面依次附着有锌膜层和复合铝膜层，即采用双层防护处理，使钢结构件具有优异的抗海水及盐雾大气腐蚀性，能满足高端海洋钢结构机械设备的使用要求。
具体实施方式
下面结合对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
本发明实施例包括：
一种耐腐蚀钢结构件，所述钢结构件包括钢结构件本体、热浸镀形成在所述钢结构件本体表面的锌膜层、喷涂在所述锌膜层表面的复合铝膜层；
所述钢结构件的耐腐蚀处理包括如下步骤：
1）预处理：对所述钢结构件本体进行酸洗和脱脂处理，然后用清水冲洗并烘干；
2）热镀锌：将步骤1）处理后的钢结构件本体置于镀锌锅内进行热镀锌处理，常温干燥后在所述钢结构本体表面形成锌膜层；
3）喷涂复合防护涂料：对步骤2）处理后的钢结构件本体喷涂铝基复合防护涂料，然后在180-200℃高温下进行烘干，最后在锌膜层外形成复合铝膜层，即得到所述耐腐蚀性钢结构件。
其中，所述铝基复合防护涂料包括的原料及各原料的质量百分比为：铝粉42%、改性环氧树脂35%、磷酸盐13%、多异氰酯预聚物11%。
本发明揭示了一种耐腐蚀钢结构件，在钢结构件表面依次附着有锌膜层和复合铝膜层，即采用双层防护处理，使钢结构件具有优异的抗海水及盐雾大气腐蚀性，能满足高端海洋钢结构机械设备的使用要求。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (4)

1.一种耐腐蚀钢结构件，其特征在于，所述钢结构件包括钢结构件本体、热浸镀形成在所述钢结构件本体表面的锌膜层、喷涂在所述锌膜层表面的复合铝膜层；
所述钢结构件的耐腐蚀处理包括如下步骤：
1）预处理：对所述钢结构件本体进行酸洗和脱脂处理，然后用清水冲洗并烘干；
2）热镀锌：将步骤1）处理后的钢结构件本体置于镀锌锅内进行热镀锌处理，常温干燥后在所述钢结构本体表面形成锌膜层；
3）喷涂复合防护涂料：对步骤2）处理后的钢结构件本体喷涂铝基复合防护涂料，高温烘干后在锌膜层外形成复合铝膜层，即得到所述耐腐蚀性钢结构件。
2.根据权利要求1所述的耐腐蚀钢结构件，其特征在于，所述铝基复合防护涂料包括的原料及各原料的质量百分比为：铝粉40%-45%、改性环氧树脂32%-38%、磷酸盐12%-18%、固化剂10%-15%。
3.根据权利要求2所述的耐腐蚀钢结构件，其特征在于，所述固化剂为多异氰酯预聚物。
4.根据权利要求1所述的耐腐蚀钢结构件，其特征在于，所述步骤3）中所述的高温烘干温度为180-200℃。
CN201710810368.8A 2017-09-11 2017-09-11 一种耐腐蚀钢结构件 Pending CN107794476A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109161300A (zh) * 2018-08-20 2019-01-08 常州市天安特种涂料有限公司 舰船水线以下用的水性环氧防腐涂料及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031724A (zh) * 1987-09-01 1989-03-15 马克斯艾歇尔钢铁冶炼公司 提高轧制钢材耐腐蚀性的处理方法
CN1259553A (zh) * 1999-01-05 2000-07-12 赵鸿 防护涂料
JP4266524B2 (ja) * 2000-12-22 2009-05-20 Ｊｆｅスチール株式会社 塗装鋼板およびその製造方法
CN105315834A (zh) * 2014-07-11 2016-02-10 江苏欣安新材料技术有限公司 钢结构用单组份环氧富铝涂料及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031724A (zh) * 1987-09-01 1989-03-15 马克斯艾歇尔钢铁冶炼公司 提高轧制钢材耐腐蚀性的处理方法
CN1259553A (zh) * 1999-01-05 2000-07-12 赵鸿 防护涂料
JP4266524B2 (ja) * 2000-12-22 2009-05-20 Ｊｆｅスチール株式会社 塗装鋼板およびその製造方法
CN105315834A (zh) * 2014-07-11 2016-02-10 江苏欣安新材料技术有限公司 钢结构用单组份环氧富铝涂料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109161300A (zh) * 2018-08-20 2019-01-08 常州市天安特种涂料有限公司 舰船水线以下用的水性环氧防腐涂料及其制备方法

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