Thick wall tube for pressure velssel                       20#steel     

Special steel plate for pressure vessel                  Q345R    

Special forgings for pressure vessel                     16MnⅡ   

Steel plate for structural parts such as swing part and saddles  

Materials must be chemically tested to determine its composition before storage.

Dimensional review and thickness inspection before storage.

The welding test plate shall be subjected to the pull-up and bending test, and the welding shall be carried out after the evaluation.

Autoclave shell plate use double fixed plate (only one welding line)

All parts of the autoclave are cut by CNC, which ensures smooth transition of the cut surface without burrs.

The autoclave shell is made of a large-scale thick-plate bending machine and can be rolled up to a thickness of 60 mm.

After the longitudinal weld of the shell is completed, the shell shall be rounded by the bending machine, and the ovality is guaranteed to be within 10% of the inner diameter of the shell.

Main pressure component welding wire :H10Mn2  flux :HJ431   

welding rod:J507

Automatic submerged arc welding machine 16 sets

Manual arc welding machine 58 sets

End dish and forging are X-ray inspected, , which meets the Class II qualification standard.

Forging flange(teeth) does magnetic particle inspection

The detection film is 100% tested by professional certified film reviewer, and can only enter the follow-up session after passing the test.

After the autoclave is completed, a water pressure test of 2.1 MPa must be performed.

The Special Equipment Inspection Institute tests all pressure parts during manufacturing.