Compared with other common heads, the aluminum elliptical head has stronger corrosion resistance, good thermal conductivity, lighter material and convenient use. With the development of the economy, it has gradually replaced some materials with poor material quality. The elliptical head is actually a seal, which is mainly used to seal some pipes, especially some medium and low pressure containers. The head is available in a variety of shapes and materials, but the aluminum elliptical head is a head that is made tough in the manufacturing process. It can’t be manufactured as easy as a hemisphere head and is not as difficult as a dish head.
When it comes to the application field of aluminum elliptical heads, anyone who knows it knows that it can be widely used in boilers, pressure vessels, rocket housings, nuclear reactors, artificial satellites, etc. It is a relatively important component on these equipments. An irreplaceable role.
The standard elliptical head is one of the most important pressure components in the pressure vessel. When selecting, we usually choose according to the required standard, but in many cases some workers use the standard elliptical head in difficult processing. It is not advisable to spin the elliptical head for replacement.
On the one hand, the standard elliptical head and the spinning elliptical head are different in the manufacturing method, so that they cannot be effectively replaced when used. The shape of the standard elliptical head is determined by the stamping die, so that the stamping die can be machined according to the standard elliptical head shape, which is a standard elliptical head.
The manufacturing process of the spinning elliptical head generally includes blanking, drum pressing and flanging. The flange is the flange portion of the head that is machined by the flanger, and the radius of the flange portion of the head is pressed by the inner forming wheel. After the flange is formed, the elliptical head is spun, which is actually a specific geometric shape. Dish-shaped head.
On the other hand, the standard elliptical head and the spinning elliptical head are also different in pressure distribution. The circumferential stress of the spinning elliptical head has a higher stress standard at the common tangent point than the standard elliptical head.