Against the backdrop of increasingly stringent requirements for equipment corrosion resistance and stability in high-end chemical and biopharmaceutical industries, composite plates made of TA2G industrial-grade titanium and Q345R vessel steel are emerging as the ideal material choice for critical process equipment in harsh environments, thanks to their superior corrosion resistance, excellent structural strength, and cost-effectiveness. However, the overall manufacturing process for large, complex equipment still faces a series of technical challenges: the titanium cladding is highly chemically active and reacts readily with oxygen, nitrogen, and hydrogen at high temperatures, necessitating continuous protection under high-purity inert gas throughout the process; the forming and welding of composite plates must balance the synergistic performance of the base metal’s strength and the cladding’s corrosion resistance; and the large-scale, thin-walled nature of the components, coupled with stringent sealing requirements, pose severe challenges for forming precision, deformation control, and non-destructive testing. Forming of Large Thin-Walled Structures and Control of Welding Distortion Equipment cylinders and heads are large-diameter, thin-walled components; composite plates are highly susceptible to buckling deformation under welding heat input. The concentrated distribution of multiple longitudinal and circumferential welds, combined with the welding of internal supports and accessories, results in complex superimposed welding stresses. If not properly controlled, this can easily lead to dimensional deviations, loss of roundness, or even wave-like deformation, directly affecting the assembly of internal components and operational stability. During the forming stage, precise plate rolling and rounding processes are employed to strictly control forming accuracy. During welding, deformation of the cylinder is effectively suppressed by optimizing the welding sequence and rationally distributing heat input, ensuring that overall dimensions meet design requirements. Quality Control for Composite Plate Welding Different welding processes must be used for the TA2G overlay and the Q345R base plate. Overlay welding is extremely sensitive to gas shielding; even slight deficiencies in shielding can lead to porosity and oxide inclusions. During base plate welding, care must be taken to prevent heat affect or contamination of the overlay. In thick-section multi-pass welding, inadequate control of interpass temperature and cleanliness can easily result in hidden defects such as lack of fusion and slag inclusions. Submerged arc welding is used for the base metal to ensure deposition efficiency and quality, while high-purity argon gas shielded welding is employed for the overlay. Interpass temperature and groove cleanliness are strictly controlled. Every circumferential and longitudinal weld undergoes multiple inspections, including visual inspection, dye penetrant testing, and radiographic testing, to ensure the high purity and mechanical properties of the weld metal. High Sealing Requirements and Prevention of Welding Defects As pressure vessels, all pressure-bearing welds must pass 100% non-destructive testing and must be free of any through-wall defects. The inspection of clad plate welds must account for both the base metal and the cladding, placing higher demands on inspection methods and sensitivity. Complex Assembly and Precision Assurance The equipment comprises numerous non-standard components, including nozzles, flanges, baffles, and supports, fabricated from TA2G pure titanium, carbon steel, and composite plates. These components require extensive fillet and load-bearing welds to connect them to the vessel shell. High precision is required for component alignment, as shrinkage and deformation caused by the heat of welding directly affect the final assembly dimensions and functionality. The project team simulated welding deformation trends in advance and scientifically allocated shrinkage allowances. During assembly, components were precisely positioned and welded in stages, ensuring accurate positioning of all internal components and reliable connections while controlling deformation. We understand that what we deliver is not merely a piece of equipment, but the confidence and assurance that will support the safe, stable, and optimal operation of our clients’ projects. With continuous improvements in manufacturing processes and the accumulation of engineering data, vessels made of titanium-steel composite plates are rapidly gaining traction in high-value-added applications due to their exceptional corrosion resistance, structural efficiency, and cost-effectiveness. Looking ahead, our company will continue to uphold the spirit of craftsmanship and pursue excellence, making forward-looking investments in areas such as intelligent forming and high-efficiency welding. We are committed to providing our customers with comprehensive solutions for composite-plate equipment that offer lower total lifecycle costs and enhanced reliability.          

近期，北钢承接了钛钢复合板（SB265 Gr11+SA516 Gr70）尾批项目。该业主是韩国重要客户。为确保项目进度和质量，业主来厂验收，对项目进行了全方位的验收，包括表面质量、结合质量、长度、宽度、厚度、平整度等，结果均高于项目及相关标准要求。为促进进一步合作，NBSM对公司生产能力、生产资质、生产环境等各方面进行了全方位的考察，包括安全、健康与环保、质量体系、程序文件、设备能力、过往业绩、合作供应商资质、日常培训等，为进一步合作奠定了良好的基础。北重股份是国内最大的爆炸复合板生产企业之一，也是高端板材制造基地。此次客户来访主要目的是围绕共同供应链、产业发展等领域，进一步深化合作，创新合作模式，拓展合作领域，推动更高质量、互利共赢的合作。经上述考察，双方已达成初步合作意向。

北重公司成功研发出钛合金链条拉伸机，有效缩短了生产周期，提高了生产效率。该机采用PLC控制，结合触摸屏人机界面，实现了操作自动化。运行过程中，通过触摸屏设定拉伸参数（如拉力上限、保持时间等），PLC接收指令，控制电机驱动链条拉伸装置，同时在触摸屏上显示链条张力、位移等信息。钛合金链条拉伸机支持一键启动和停止功能，在确保安全可靠的同时，大大降低了操作难度和劳动强度。该机具有历史数据查询、存储、截图功能，支持查看实时曲线，并支持数据下载。钛合金链条拉伸机提高了链条拉伸的效率和精度，降低了操作难度和强度，适用于不同规格、类型的链条拉伸需求。该设备自推出以来，性能稳定，运行可靠。

NBSM与欧美、东南亚等客户有着长期的合作。近日，东南亚重要客户来厂考察验收项目，以拓展进一步合作。他们重点考察了南京宝泰的生产能力、生产资质、现场环境以及产品质量。北重金属是国内最大的爆炸复合板生产企业之一，也是高端金属爆炸复合板制造基地。此次来访主要旨在加强双方在打造完整供应链、产业发展、拓展海外市场等方面的合作，进一步巩固合作关系，创新合作模式，拓展合作领域，推动双方在更高端领域的合作共赢。此次考察验收后，双方达成了全面合作协议。合作项目已全面验收，包括无损检测、材料尺寸、形状、表面、包装、理化性能等，均符合采购要求及相关标准规范。

在双方密切沟通配合下，通过严格的生产和质量管控措施，我公司提供的一批采用欧标SB-265 Gr.1+P355GH材质的钛钢复合板设备已顺利从客户现场发运，即将踏上发往南美的旅程。此次钛钢复合板最大板宽为2000mm×6900mm，共计100余张，板材采用SB-265 Gr.1钛材，厚度为3.5mm。目前市场上供应的板材宽度为1000/1219/1500mm（宽）×L。这些板材是通过在材料上铸造一个拼接焊缝制成的。现我司在景县工厂利用完整的材料产业链优势进行钛板复合，利用自身的熔炼、锻造、拉坯、轧制、酸洗等工艺，轧制出单张尺寸为3.5mm×2120mm×7000mm的SB-265 Gr.1钛板。这块单张复合板没有任何拼接焊缝，大大降低了后续腐蚀危害的风险。 从最初的板材设计沟通到成品交付，双方团队在每个环节都投入了巨大的精力。我公司深知设备对于客户拓展海外业务的重要性，始终秉持严谨专业的态度。在布局阶段，我们的工程师反复推敲每一个技术细节，力求最大程度地增加板材宽度、最大程度地减少焊缝、优化质量，高效稳定地满足客户的生产需求。通过反复沟通，我们深入了解了客户的需求和顾虑。我们将这些宝贵的信息融入到钛板制备设计和复合板尺寸设计中，赋予其独特的创新优势和实用功能。