The panel line is the main production line for ship construction, which is usually divided into main processes such as butt welding, marking, cutting and polishing, stiffener assembly and welding, T-beam assembly and welding, outfitting, etc. Through this production line, all processes from raw material steel plates to the entire ship section are automated.
The panel line greatly improves production efficiency in ship construction. Through standardized operating procedures and mechanized equipment, each link is closely connected, reducing waiting time between processes and significantly increasing the manufacturing speed of the panel line, shortening the overall construction cycle of ships. In terms of quality control, the precise craftsmanship and stable equipment operation of the panel line ensure the accuracy and consistency of the products, reducing quality fluctuations caused by differences in manual operations.
Our complete construction solutions for thin panel production line include service of workshop planning, efficiency calculation, overall layout of production line, detailed design of production line equipment, manufacturing, installation and commissioning, training and after-sales service. There are different process options for different ship types. The processes usually include joint plate welding, line cutting and grinding, stiffener assembly, stiffener welding, parts (T-row, ribbed plate, casing) assembly, parts (T-row, ribbed plate, casing) welding, outfitting, lifting and delivery etc.
The laser-arc hybrid welding technology is widely used in Engineering machinery application, such as crane jib, excavator hydraulic jib, excavator shaft axle seat, and port stacking machine etc.
In the construction of medium-thick plates, high-quality welding seam can be obtained by using the double-sided SAW or MIG/MAG welding process. Using hydraulic mechanical method to roll over or travelling crane to roll over depends on budget and layout for which we have relatively rich experience.
The core technology of thin plate welding is very clear —achieving good productivity with the minimum deformation. Based on long-term experience and continuous innovation, DIG has several effective single-sided and double-sided molding or double-sided welding solutions. The application of laser MIG composite welding, double-wire MIG/MAG, thin-wire submerged arc welding and other processes and the coverage of fully automatic control and informatization have brought more accurate quality and higher efficiency to shipbuilding.
The application of FCB or FAB method in the construction of medium-thick plates can accomplish double-side molding by single-side welding. In the construction of thick plate, it is also a good choice. Compared with double-sided welding, double-side molding by single-side welding requires no turning process; however, it usually requires a maintenance pit to repair the reverse side which requires sufficient negotiation and communication between both parties.
The joint butting of fuel storage tank cylinder section of carrier rocket is mainly based on friction stir welding process, and large gantry structure is used to cooperate with corresponding tooling to complete the welding action. The equipment is customized according to the size of welding object with maximum cylinder section diameter up to 10m and cylinder wall thickness up to 25mm. The system adopts CNC control and supports "constant pressure-constant position" control mode which can accurately control welding seam quality. According to different requirements, the equipment can choose mechanical spindle and motorized spindle drive. Pumpback spindle can be selected to weld circular seam and eliminate welding tail holes. In order to improve the accuracy of welding formation, milling handpiece can be used for edge milling on the welding seam edges of workpiece. Customized internal support and external pressure tooling is available according to product characteristics.
The T-Beam Production Line is a specialized automatic assembly and welding production line dedicated for T-beams, which are commonly used in construction, shipbuilding, and engineering projects for their structural strength and versatility.
With a series of automated and semi-automated processes to ensure high precision, efficiency, and consistent quality, our system can efficiently handle loading, edge beveling, edge primer removal, assembly, welding, and straightening, all in a single operation.
A Set of Various Workstations
The T-Beam Production Line consists of the following workstations:
1. Chamfering Station
2. Edge Shot Blasting Station
3. Assembly, Welding, and Straightening Station
DIG Benefits
· Consistency and Accuracy: Automated processes ensure consistent and accurate production of T-beams.
· Productivity: High-speed automation reduces production time, increases output, and minimizes human error and enhances overall efficiency.
· Cost-Effective: Reduces labor costs by automating manual tasks, also minimizes material waste through precise cutting and assembly.
· Safety: Automation reduces the need for manual handling of heavy materials, protecting operators from hazards.
We provide complete sets of automatic assembly, welding, and cutting solutions for the volume production of all welded parts and accessories in all kinds of engineering machinery, including excavators, wheel loaders, cranes, bulldozers, shield tunneling machines, mining machines, and port machines.
Intelligent robots based on parametric programming, VI (visual identity), automatic error correction, automatic positioning deviation rectification, and multi-machine collaboration will be widely used in engineering machinery.
DIG can undertake complete set of service covering overall scheme design, equipment design, manufacturing, installation, commissioning, and after-sales service of automatic stereoscopic warehouse.
The solution for vertical-type of circumferential welding of large nuclear capacitor products has the process ability of welding by one side and molding by both sides, able to complete the backing welding of single-sided welding and both-sided molding. Front-sided filling is welded by narrow gap hot-wire TIG welding on transverse welding position. It is able to satisfy the welding of low alloy steel such as SA508-3, SA533-B and 12Cr2Mo1.The equipment uses four-welding gun narrow gap hot-wire TIG welding on transverse welding position, U-profile slope welding, and welding by one side and molding by both sides. The workstation is equipped with workpiece clamping and position adjustment, workpiece rotation, pre-heating, post heating, intermediate heat treatment (induction heating), lifting operation platform and welding installation arm, water/ electricity/gas supply and control for platform, supporting elevator for platform, and other auxiliary systems; able to realize specialized, automated and informationalized welding.
