We continue to improve our innovation and management capabilities, introduce advanced technology, and strictly monitor the production process.
Establishment of workshop level industrial Internet, customized production line manufacturing execution system (MES), to achieve production process management,
production resource management, production process management and fully integrated quality management.
The dried electrolytic copper is added to the core power frequency melting furnace to heat and melt, and the casting begins at about 1180℃. The copper liquid solidifies and forms in the graphite mold of the crystallizer. The drawing machine of horizontal continuous casting continuously draws ingots according to the set casting frequency and speed, and the tube blank is measured by the flying saw.
The cast tube billet is sent to the cyclone milling machine by the feeding mechanism, and the oxide layer and minor defects on the surface of the cast tube billet are removed by milling.
After milling, the billet is sent to the planetary mill and rolled to the required specifications. Under the action of high rolling force, the casting billet is processed with large deformation, and the deformation heat makes the rolling tube temperature above the recrystallization temperature, so as to realize the transformation of as-cast structure -- processed structure -- soft structure in one processing. The tube blank with bright surface and fine uniform internal structure was obtained by
Drawing adopts double series technology, two drawing machines are connected in series, the intermediate transition compensation device is used to achieve real-time matching of the speed of two devices, and the floating core head is used to achieve two drawing of the first time to improve production efficiency.
The tube blank is drawn repeatedly by the inverted coil drawing machine in multiple passes to reach the finished product specification. Coil drawing adopts the method of drawing the floating core head to further draw the copper pipe, the finished outer diameter can reach φ4mm, and the length can reach more than 20000m.
Before forming, the tube billet of the internal thread needs to be annealed in intermediate passes, and the production process of on-line continuous induction annealing is adopted in this project. This process can ensure the consistency of the structure and properties of each part of the entire copper coil, and the online annealing of the metallographic structure is finer, high tensile strength, high elongation.
The forming process of internal thread adopts the planetary steel ball die spinning process, the processing principle is to use the steel ball die spinning head. During the drawing process, the steel ball placed in the spinning head does high-speed planetary rotation outside the tube blank, and drives the inner thread core head fixed in the spinning deformation area in the tube to rotate, the rotation speed is up to 35000r/min. A tooth groove with the same tooth shape as the core head is machine
According to the customer's requirements, the horizontal winding machine is used to finish and wind the coil drawn light tube or the internal thread tube formed by spinning and winding into tightly arranged small coil. At the same time of horizontal winding, eddy current testing, marking, drying and outer surface cleaning of the copper pipe are performed.
After cleaning, the small coil is sent to the continuous roll bottom bright annealing furnace for finished annealing, and through high temperature recrystallization, the hard state is changed to a soft state, that is, the finished bright coil is produced, which is suitable for users to expand and bend.
After passing the inspection, the finished product is packaged according to different user requirements and transportation conditions to prevent bumps and oxidation during transportation.
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Contact: James Zhang
Mobile: +86-18052528902
Tel/Fax: +86-0519-68020500
Whatsapp: +86-18052528902
Skype: james.pcb888
E-mail: james.zhang@enreach.com.cn
