How many points did the welder get?

Welder's certificate passed 80 points.

A, welder introduction:

Welder is a type of work that uses proper welding method, reasonable welding technology, suitable welding equipment, filler made of the same material or different materials as the base metal, or even does not use filler, and closely connects metal or nonmetal workpieces by heating or pressurizing or both.

On July 2, 20201day, it ranked eighth among the jobs in short supply in the second quarter of 2020 100 released by Ministry of Human Resources and Social Security.

Second, according to the needs of the market, there are the following seven common types of welders:

1, argon arc welding: it is harmful to the body, with high technical requirements and easy fatigue;

2, CO2 gas shielded welding, manual welding machine;

3. Special welder: gas welding,

4. Resistance welding machine and spot welding;

5. Underwater welding and pressure vessel welding. There are two main welding methods, namely, self-welding and fusion welding. There are five common types of jobs. Ordinary welding method (fusion welding; Pressure welding and brazing).

6. Manual arc welding, gas welding and gas cutting, argon arc welding and co2 gas shielded welding.

7. Selection and storage of covered electrode types, types and use of welding equipment and forms of welding joints.

8, the formation principle of weld.

9. Selection of welding position (horizontal welding, vertical welding, horizontal welding and overhead welding) and welding process parameters (welding current, arc voltage, welding polarity, welding speed, etc.). ), weld layout and weldment structure, gas welding technology and cutting technology, gas welding and gas cutting of common metal materials, argon arc welding principle, equipment use and welding technology.

10, welding deformation and stress and their generation and prevention methods.

1 1. Causes and preventive measures of common welding defects.

12, welding inspection.

13, safety regulations for electric welding and gas welding.

14, understand the welding characteristics and operation points of cast iron, copper, aluminum, titanium and other metals.

Third, the welder's responsibilities

1, welding the products arranged by the supervisor every day;

2. Maintain the machine before and after work every day, and arrange 5s on site;

3. Operate according to mcg process standard; Check the quality of input parts to ensure the quality of output components or subassemblies; Report product defects to department head;

4. Report the failure of equipment and tools to the section chief; Responsible for the cleaning and lubrication of fixtures and fixtures, and ensure the correct storage every day.