Welders are divided into several grades to compete for samples.

According to their own welding skills, welders have obtained the technical titles of junior, intermediate, senior, technician and senior technician through the welding skill examination, and obtained the technical grade certificate issued by the state.

Fusion welding and hot cutting operations (electric welding, gas welding, arc welding, electric welding and gas cutting, etc. ) Also called work certificate. The issuing authority is the Administration of Work Safety, and due to the need of work. Certificates are divided into fusion welding and hot cutting operations, pressure welding operations and brazing operations. The certificate has a magnetic card, which is common throughout the country.

Scope of application: manual arc welding, submerged arc welding, gas shielded welding, electroslag welding, plasma arc cutting, carbon arc gouging, casting welding repair, etc.

Different levels have different levels of mastery of skills, and primary is the most basic. The skill requirements are also the lowest:

1. Use and maintenance of welding equipment and auxiliary equipment for personal use.

2. Use and maintain individual workers, fixtures, tires, measuring tools and protect, repair and replace electrode holders, gas shielded welding guns and gouging guns.

3. Use and storage of common instruments and gas cylinders.

4. Baking, use and storage of welding materials.

5. Understand the drawings of weldments and simple parts.

6. Select the welding and gouging process parameters and make preparations before welding.

7. When welding ordinary weldments of low carbon steel and low alloy steel, use carbon arc gouging to clean the welding roots.

8. Preheat and correctly measure the temperature of the welded parts.

9. Check the appearance quality of weld, identify the welding defects on the surface of weld, and measure the appearance dimensions of groove and weld.

10. Manual arc welding and gas shielded welding in plane and horizontal welding positions.

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With the growth of the level, the requirements for skills are higher.

12. It meets the requirements of post responsibility system and civilized production.