Hydraulic tube bending is one of the most popular and useful tube bending equipment in market. Because it can bend colored or black metal pipes, it is widely used in shipbuilding, chemical industry, metallurgy, electric power and heavy machinery manufacturing sector, especially suitable for small batch and single or maintenance, etc.
When bending, hydraulic tube bending machine has many problems to solve: 1. Pipe material is in plastic state under the high temperature condition of 800 ~ 1 000 ℃, so it can be easily bent, but cooling the pipe material needs much time, and it can be out of shape in cooling.
2. The guide rail may made the radial deformation to the heating pipe, which can impact the overall of tube.
For question 1, we can be folded in half after bending of steel pipe for rapid cooling, such as the use of cooling water or air to the forming of rapid cooling to finalize the design of curved pipe.
For question 2, can be used to steel pipe before heating, give it a reverse deformation, the elliptical facilities.