We forming the Conventional heads and Segmental heads by Cold forming, Hot forming and Spinning as well as the extensive machinery according to users' requirements.

Testing & Inspection

• Radiography test

• Charpy V-notch Tests

• Ultrasonic Soundness

• Magnetic Particle

• Penetrant test

• Brinell Hardness

• Bend Test under room temperature and high temperature

Heat Treatment

• Annealing

• Normalizing and Quenching

• Stress Relieving

• Solid solution

• Tempering

Welding

• Stick-electrode Semiautomatic Gas shielded Submerged-arc

Surface Treatment and Edge Preparation

Upon request of customer, we polish or acid-pickling both the interior and exterior surface of the dished heads in stainless steel and sand blasting of the dished heads in carbon steel; Sand Blasting

• Acid-pickling

• Polishing

• Sand Blasting

The dished heads edge preparation can be machining as following shape or based on the special requirements;

• Without Taper

• With Inside Conical Taper

• With Outside Conical Taper