High Speed Automatic Aluminum Tube End Spinning Machine for seamless cylinder
Product Description
Step1: Tube strong spinning
Before spinning
Before spinning, the inner and outer surfaces of the blanks are required to be smooth and free of defects such as bumps and bumps. General blank weight = finished product weight + 80mm length blank is appropriate
After spinning
After spinning, the pipe material is required to have no defects such as slag inclusion, peeling, and no internal scratches.
1. The inner and outer surfaces of the strong coil blank should be smooth, and no defects such as cracks, corrosion, inclusions, peeling, bubbles, abrasions, bumps, scratches, folds, straights, pits, etc. are allowed.
2. Internal surface quality requirements: roughness Ra2.0, the surface has no defects such as cracks, pits, heavy skin, bumps, scratches, etc., and the grinding lines on the inner wall are consistent (circumferential).
3. The straightness of the strong coil is not more than 0.15%.
Step2: Tube closing
Technical drawing
Spinning is to heat and spin both ends of the pipe material. Since the inside of the small mouth needs to be threaded after spinning, and at the same time to ensure the strength of the mouth, the thickness of the small mouth after spinning should be about 20, so the thickness of the closing section of the billet is also relatively thick.
It adopts the hot spinning process, and the temperature of the closing part needs to be kept relatively uniform during spinning, and the temperature is generally controlled at about 350-450. It is not advisable to keep the temperature too high for a long time to prevent the grains of the material from being coarse and affecting the strength and performance of the gas cylinder.
Specification
Tube strong spinning
| Technical requirements | Related parameters |
| Spinning equipment | Three-wheel CNC spinning machine |
| Diameter of spinning machine | 600mm/800mm |
| Length of spinning machine | max. 3200mm |
| Spinning method | Three-wheel spinning |
| Spinning temperature | Room temperature, special coolant |
Tube closing
| Technical requirements | Related parameters |
| Spinning equipment | Special CNC closing and spinning machine |
| Maximum closing diameter | 460、640 |
| Maximum length | 3500mm |
| Spinning temperature | ~450 |
| heating method | flame heating |
| single cylinder time | 12min*2ends |
| Loading and unloading method | Optional manipulator |