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热喷涂应用

发布时间:2015.05.29    点击数: 126897

        1.200m³球罐喷涂修复

        该罐用16MnR制作,壁厚24mm,贮存介质为含H2较高的液化石油气,使用5年后在焊接头区出现开裂。为此在焊缝及熔合区及热影响区喷涂铜合金。预处理先在焊缝及热影响区用砂轮打磨宽度为150~170mm,用蘸丙酮的棉纱擦洗2~3次。用液化石油气火焰将喷涂部位预热到250~350℃。喷涂镍包铝欺复合粉末作为底层。喷涂铜合金工作层,氧气压力为0.6~8MPa、乙炔压力为0.05~0.1MPa,喷涂宽度为120~150 mm,喷涂距离150~200mm。经过120天运行考核,未发现H2S应力腐蚀开裂,效果良好。

 

        2.气缸体的喷涂修复

        汽缸体用合金铸铁制作,其主轴承座孔常因磨损与拉伤而失效。处理前先将主轴承孔座进行整体加工,消除椭圆。用氧-乙炔焰将喷涂部位加热到300~350℃,烧掉其表面微孔和石墨中油污,先用三氯乙烯清洗干净,用石英砂进行表面粗化处理后再在座孔表面每隔2~3mm打一个三角形洋冲眼。在上、下半环栽植四只高度与涂层厚度一致的M3螺钉,以提高涂层与基体的结合力。喷涂前再用丙酮擦洗一次。用氧-乙炔焰将座孔预热到160~180℃。喷涂0.1 mm厚的镍包铝底层。用钢丝刷除去沉积物后,喷涂镍基粉末工作层。氧气压力0.6~0.8MPa,乙炔压力0.05~0.03MPa,喷涂距离150~200mm。喷涂时涂层表面温度不能超过300℃。喷涂后将主轴承座孔下半环埋入250℃左右的石棉中冷却到室温,上半环座外表面用水冷,以避免涂层脱落。喷涂后座孔的耐磨性和润滑性好,使用寿命长,经济效益好。

 

        3.原子炉炉心构成元件的喷涂

        原子炉炉心构成元件是奥氏本不锈钢制成小直径管件,外径110 mm,内径80mm,长度120mm,采用小型喷枪的非转移型等离子自动喷涂,氩气中加8%氢气,电流为100A,用氦气送74Ni-13Cr-4Si-3B自熔性合金粉末喷涂材料。靠管件旋转实现自动喷涂,工作效率高,成本低。

 

        4.喷气发动机迷宫环密封件边缘喷涂修复

        喷气发动机运转时,要求旋转部件与静止部件间的间隙保持不变,因而要求迷宫环密封件用镍封件边缘家具有优良的耐磨性和耐热性。B-747客机GF6-46AZ发动机的迷宫环密封件用镍基合金55.5Ni-19Cr-11Co-10Mo-3Ti-5Al制作。喷涂前用细氧化铝喷丸和硝酸侵蚀交替处理,除去原有涂层后,再用细氧化铝喷丸处理。用耐热带遮蔽不喷涂部位。采用N2、H2等离子喷涂0.1mm厚工作层,合金粉末为94Al2O3-2.5TiO2-2.0SiO2-1.5其他。电流500A,电压75V,粉末流量3kg/h。预热温度66~121℃,允许温度250℃,喷涂距离100mm。喷涂后去年遮蔽带,用专用机械对边缘加工。

        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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