Carbon Steel Pipe Fittings Manufacturer shares with you.
The forming process of a large diameter 90-degree seamless elbow is a process that adopts special elbow pusher, core mold, and heating device to make the blank on the mold move forward under the push of pusher, and then it is heated, expanded and bent during the movement. The tube billet is placed on the lower die, the inner core and end die are loaded into the tube billet, the upper die moves downward and begins to press, and the elbow is formed by the constraint of the outer die and the support of the inner die.
Compared with the hot-push process, the appearance quality of stamping is inferior to that of the former. In addition to the three common forming processes mentioned above, seamless elbow forming also adopts the forming process of extruding the tube blank to the outer die and then passing the ball through the tube blank. But this kind of craft is relatively complex, the operation is troublesome, and the forming quality is inferior to the afore-mentioned craft, reason USES less. Method for manufacturing high-pressure carbon steel elbows. Cut the two sections of the pipe into oblique slits, the length of which is equal to the length of the elbow with a straight section. Insert an inner core die when the pipe reaches a creep deformation. The diameter of the inner core die is equal to the inner diameter of the pipe.
Scope of use: a common connection fitting used in pipeline installation, which connects two pipes of the same or different nominal sizes to make the pipes turn at a certain Angle. This is a difference between a long radius and a short radius elbow in the national standard. R= 1.5d is a long radius bend, which is also a common product, while R=1D is a short radius bend. In the usual design, if only said elbow, did not mention the length radius, is the long radius should be applied to the long gauge elbow.
And the difference between these two kinds of the bend is that the bend is always slow, while the other is more urgent. Apply to a few more when installation place is restricted place, be like too close to the wall, etc. And use that is to say for the overall aesthetic of the equipment and other reasons. This is a difference between a long radius and a short radius elbow in the national standard.
Our company provides Malleable Iron 90°Degree Elbow.
