The production process of hni65-5 nickel brass tube with heavy plate
A production process, nickel brass technology, applied in the field of metal rolling, can solve problems such as pipe cracking, drawn coil annealing, etc., and achieve the effect of simple manufacturing process, smooth surface and uniform pitch
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Embodiment 1
[0026] For example: the finished product outer diameter Φ19mm, wall thickness 1mm, the production process of HNi65-5 nickel brass coil tube in the annealed soft state includes the following steps:
[0027] (1) Preparation of hollow ingot: According to the mass ratio of electrolytic copper: electrolytic nickel: zinc ingot is 64.5:30:5.5, according to this ratio, put it into the melting furnace for melting at 1130℃±20℃, refining for 15min, and then continuously casting the outer diameter The hollow ingot is Φ90mm, the inner hole is Φ40mm, and the weight of a single ingot is 300kg;
[0028] (2) Preparation of coil: Step (1) Prepare the hollow ingot on the surface milling machine to mill the outer single side of 0.5mm, and carry out planetary rolling to form a completely recrystallized state with an outer diameter of Φ48mm and a wall thickness of 2.2mm. The pipe is wound into a Φ2000mm HNi65-5 nickel brass coil, the planetary rolling temperature is controlled at 780±20°C, the cool...
Embodiment 2
[0034] For example: the finished product outer diameter Φ16mm, wall thickness 1.2mm, the production process of HNi65-5 nickel brass coil tube in the annealed soft state includes the following steps:
[0035] (1) Preparation of hollow ingot: According to the mass ratio of electrolytic copper: electrolytic nickel: zinc ingot is 64.5:30:5.5, according to this ratio, put it into the melting furnace for melting at 1130℃±20℃, refining for 15min, and then continuously casting the outer diameter The hollow ingot is Φ90mm, the inner hole is Φ40mm, and the weight of a single ingot is 300kg;
[0036] (2) Preparation of coil: Step (1) Prepare the hollow ingot on the surface milling machine to mill the outer single side of 0.5mm, and carry out planetary rolling to form a completely recrystallized state with an outer diameter of Φ48mm and a wall thickness of 2.2mm. The pipe is wound into a Φ2000mm HNi65-5 nickel brass coil, the planetary rolling temperature is controlled at 780±20°C, the co...
Embodiment 3
[0042] The technique of the heavy HNi65-5 nickel-brass tube of described large plate, concrete steps are as follows:
[0043] For example: the finished product outer diameter is Φ20mm, the wall thickness is 1.2mm, and the HNi65-5 nickel brass coil in the state of annealed soft state includes the following steps:
[0044] (1) Preparation of hollow ingot: According to the mass ratio of electrolytic copper: electrolytic nickel: zinc ingot is 64.5:30:5.5, according to this ratio, put it into the melting furnace for melting at 1130℃±20℃, refining for 15min, and then continuously casting the outer diameter The hollow ingot is Φ90mm, the inner hole is Φ40mm, and the weight of a single ingot is 300kg;
[0045] (2) Preparation of coil: Step (1) Prepare the hollow ingot on the surface milling machine to mill the outer single side of 0.5mm, and carry out planetary rolling to form a completely recrystallized state with an outer diameter of Φ48mm and a wall thickness of 2.2mm. The pipe is...
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