Cause Analysis:1. Molding temperature is too high or the temperatures of the upper and lower molds are inconsistent.2. Venting is too open or venting time is too late.3. Rubber compound cures too quickly.4. Mold structure is unreasonable and lacks overflo

The quality of the welded pipe to control, to safety in production operation, but also to protect the inevitable elements of the personal safety of the operator. Applications mainly in the large span grid project, building steel structure engineering, pow

Large diameter hot-rolled seamless pipe, including: seamless steel pipe and welded pipe, straight seam welded pipe, seamless tube, thermal expansion seamless pipe, high pressure boiler tube.Large diameter hot rolled seamless pipe (kg / m) Density calculat

We all know that in the process of any product production, because of the technical deviation caused by a series of bad effects, just as large diameter seamless hair sickle bending and wave bending, are in the manufacturing process problems The Then the f

Thick steel pipe uneven is mainly reflected in the spiral wall uneven, linear wall thickness uneven and head and tail wall thickness thick, thin and so onThe cause of the uneven thickness of the spiral thick-walled steel pipe is that the centerline of the