• - Cold Forming Elbow Machine
• - Hot Forming Elbow Machine

• - Pipe End Expanding Machine
• - Full Length Pipe Expander

• - Single-Head Pipe Fittings Beveling Machine
• - Automatic Double-Head Elbow Beveling Machine
• - Automatic Triple-Head Tee Beveling Machine
• - Large Steel Pipes Beveling Machine

According to the "elastoplastic mechanics" textbook knowledge.

This is a torque equilibrium equation, the one on the left is the external force torque, the one on the right is the internal force torque, and it is equal to the integral over the whole section of the torque generated by the stress on the neutral axis.When bending, the axis of the pipe is the central axis.

If the outer diameter of the pipe is D, the inner diameter is D, and the yield limit is OS, the bending deformation is carried out on the mold with the curvature radius of R, therefore, the inner ring radius of the pipe is R.If the distance between the bending deformation point and the force applied point is L and the material is not hardened, then the whole clean surface will enter the plastic state when the bending deformation occurs.

Reason: L = 2 P * * Integral {2 * * DY * OS x * y 0, D / 2} - 2 * Integral {2 * * DY * OS x * y 0, D / 2}

={D^3-d^3}*OS/6

P={D^3-d^3}*OS/[6*L]

This is the strength of the bend when the material is not hardened.

The pipe bender and the metal circular saw machine and other machine tool industry intelligent development, the pipe bender mold affects the stable quality of the finished product is one of the important components, because of the different pipe fittings material, the mold requirements are also different.This company has carried on the research and development and the design to the pipe bender mold.Make the pipe bender mold in the quality greatly improve the quality.Can meet the requirements of each customer in the production process.At the same time, it ensures the quality of the pipe bender in the process of bending, reduces the time of mold change and improves the production efficiency.At present, our company is also increasing scientific research technology and improving the design of pipe bender.In order to waste customers' time by changing the mold in the production process, our company has developed the automatic pipe bender. The automatic pipe bender is simple in the operation process. When wearing the new noiseless intermediate frequency developed by us, the automatic pipe bender is more perfect in the production process.

1305-14015.