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合理选择钢桥防腐涂装体系的研究与应用

发布时间:2011.09.13    点击数: 104032

直接在车间底漆上涂富锌底漆,漆.往往达不到预期的防腐蚀效果。因此,如果采用富锌底漆或金属喷涂的防腐体系,一定要喷砂清除车间底漆,靠电动工具打磨大面积清除车间底漆既不现实又不可靠。按此原则,钢桥防腐应遵循“长效、便利、经济、环保”原则.从4个方面论述了钢桥防腐体系的选择。预处理是对钢材的临时维护措施,因钢桥的制造周期短,不应明确要求对钢板进行预处理,不建议在复杂结构和施工条件受限等情况下采用,因金属喷涂体系具有施工难度大、速度慢、能耗高、利息高及有明火等缺点.可采用富锌涂层体系。氟碳面漆和聚硅氧烷面漆宜在高原地区使乡村、平原及丘陵地区宜采用丙烯酸聚氨酯面漆。无机富锌防锈防滑涂料的抗滑移系数能够满足钢桥的装置需求,用.涂装效率、成应推广使用。关键词:钢桥;防腐;防锈;金属喷涂 中图分类号:U445.73文献标志码:A 文章编号概述 桥梁的惯例荷载有自重、车辆、风力本、难易程度、环保、节能及平安等方面均优于电弧喷铝。

桥梁的承载能力一定要大于最不利的荷载组合才干保证其安全。腐蚀是另一种荷载,及地震等.时刻侵蚀钢桥,降低了桥梁的承载能力。钢桥防腐的目的使钢桥免受或大幅度减轻腐蚀荷载造成的损伤。设计荷载条件下,防腐是保证钢桥耐久性的主要措施之一。桥梁因腐蚀而毁坏的实例不止一次地发生过。设计、施工、维护的全过程,防止再发生悲剧。近些年,对钢桥防腐蚀应给以足够的重视.国钢桥建设数量增多,继《铁路钢桥保护涂装》TB/T1527-2004,以下简称铁路钢桥防腐规范)之后,公路部门推出了公路桥梁钢结构防腐涂装技术条件,以下简称公路钢桥防腐规范),JT/T722-2008[2].因此,确定钢桥防腐方案时有了更多的选择。本文根据多年的钢桥防腐实践及思考,确定防腐方案时,从钢板预处理、金属喷涂、氟碳面漆及抗滑移涂料4个方面,论述了钢桥防腐体系的选择。2钢板预处理设计 钢通常会采取钢板预处理的临时维护措施,桥在分段制造前.一般情况下多为对钢板进行抛丸并喷涂约20μm厚的无机硅酸锌车间底漆,以保证钢桥在分段制造过程中不发生严重锈蚀。钢桥的预处理是从船舶制造工艺中逐渐钢桥分段的制造时间较短,演变而来的相对于船舶制造.分段涂装前钢板暴露在腐蚀环境下的时间一般不作预处理是可行的进行钢结构防腐蚀体系设计时,60d左右.可考虑不将钢材预处置作为强制性的配套体系写入设计文件。可将其作为工艺设计的一部分,将决定权交给钢桥制造方。监理的监管下,制造方可根据制造周期、工艺特点、钢材原始状态及防腐蚀体系的特殊要求等因素来综合考虑预处。

若在制造周期相对较短且采用高外表处置等级要求的金属喷涂及富理的必要性。铁路钢桥保护涂装》TB/T1527-2004对预处置没有特别要求。对最终防腐质量而言,进行预处置不一定比不进行预处理更好。

        关于QY千亿国际智能 About Liangshi InteRobot:
        上海QY千亿国际智能科技股份有限公司(股票代码:837430 厚积薄发 持续创新),为全球客户提供智能制造和表面处理系统解决方案,从业30多年,是一个集研发、设计、制造、工程安装、工程咨询于一体的专业化制造及自动化智能控制系统集成公司,能为客户解决:
        Shanghai Liangshi InteRobot Technology Corporation (Stock Code: 837430 Accumulate richly and break forth vastly; innovate continuously) provides surface treatment sandblasting system solution for global customers. By engaging in this industry for more than twenty years, we're a professional manufacturing and automatic intelligent control system corporation, which integrates researching, designing, manufacturing, project installation and project consulting. We can provide our customers with:
        1、化学表面处理喷抛丸、喷丸强化设备、热喷涂和涂装设备工艺系统解决方案和工艺装备;
              We provide process system solution and process equipments of surface treatment sandblasting shot blasting, shot peening, enameling, thermal spraying, coating equipment.
        2、智能制造自动化机器人应用工艺系统解决方案和工艺装备;
              We provide professional system solution and process equipments of automation and robot technology application.
        3、食品乳品、制药、生物、制冷、石油化工、船舶制造、能源、造纸、纺织系统领域承压系统集成整体解决方案;
              We provide professional integrated solution for pressure bearing system in fields of food dairy, biopharmaceutical, refrigerating, petrochemical, marine engineering, energy, paper-making, fabrics, etc.
        4、涂装环保设备:VOC废气、废水、粉尘处理和噪音治理系统工艺解决方案和工艺装备。
              We provide environment protection blasting and painting equipment: process solution and equipment of VOCs waste gas, waste water, dust, noise treatment system.
         5、专业提供压力容器设计制造:为食品乳品、生物制药、水处理、制冷、石油化工、船舶海工、电力能源、造纸纺织、有色金属等领域提供承压系统集成整体解决方案。
              Professionally provide the design and manufacture of pressure vessels: providing overall solutions for pressure system integration in the fields of food and dairy, biopharmaceutical, water treatment, refrigeration, petrochemical, shipbuilding and marine engineering, power and energy, paper and textile, non-ferrous metals and other fields.
        企业主导产品如下 The leading products of our company are as follows:
        主营业务:智能制造和表面处理工程系统集成的设计、研发、生产和销售。
        Main business: design, research, production and sales of surface treatment engineering system integration.
        六类主要产品:自动化涂装生产线、智能机器人喷涂系统、自动化喷抛丸生产线、智能机器人喷抛丸强化系统、自动化热喷涂系统、涂装节能环保设备。
        Six main product categories are: automatic painting production line, intelligent robot painting system, automatic shot/wheel blasting production line, intelligent robot shot peening system, automatic thermal spraying system, energy saving and environmental protection equipment for painting.
        产品主要应用于:新材料、新能源、工程机械、汽车制造、集装箱、船舶海洋工程、航空航天、港口桥梁、电子电气、环保工程、印刷造纸机械、医疗机械、纺织机械等领域。
        The products are mainly applied in: new materials, new energy, engineering machinery, automobile manufacturing, containers, marine engineering, aeronautics and astronautics, port bridges, electronic and electrical, environmental protection engineering, printing and papermaking machinery, medical machinery, textile machinery and so on.
        公司生产的表面工程系统集成具备智能、自动化的特点,可实现工业生产过程自动化控制,因而属于自动化装备。根据《高端装备制造业“十二五”规划》中对高端装备的定义“主要包括传统产业转型升级和战略性新兴产业发展所需的高技术高附加值装备”,公司产品属于高端装备,是为国民经济其他行业提供技术装备的战略性产业。
        The surface engineering system of our company integrates the characteristics of intelligence and automation, it can realize the automatic control of industrial production process, so it belongs to automatic equipment. According to the definition of premium-end equipment of 《The 125th programme of premium-end equipment manufacturing industry》, “it mainly includes the high technology and high value-added equipment required by traditional industrial transformation upgrading and the development of strategic new-emerging industries”. The company's products belong to the premium-end equipment, which is a strategic industry that provides technical equipment for the other industries of the national economy.
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