How many years can argon arc welding work?

Dry argon arc welding can not exceed three years.

The essence of argon arc welding is arc welding with inert gas argon as protective gas, and argon tungsten arc welding is commonly used. When the welding current is large, the use of tungsten electrode with small diameter and sharp cone angle will make the current density too high, resulting in overheating and melting of the tungsten electrode and increasing the burning loss.

The welding speed is mainly determined by the thickness of the workpiece and coordinated with the welding current and preheating temperature to ensure the required penetration depth and width. The welding process is too simple, which is easy to produce obvious weld sag, porosity and crack defects, especially for materials with high hot cracking tendency.

High welding quality. Because argon is an inert gas, it does not react chemically with metals, alloy elements will not burn, and argon is insoluble in metals. The welding process is basically a process of metal melting and crystallization, with a wide welding range, which can weld almost all metal materials, especially for welding metals and alloys with active chemical composition.

For those who have worked at high temperature for 9 years, riggers, electricians and welders belong to special types of work, that is, they have been engaged in high-altitude and particularly heavy manual labor for 10 years. For example. Reach the legal early retirement age: welders, whether they have an operation certificate or not, can retire five years earlier if they have been engaged for more than eight years continuously; Engaged in underground work. Special types of work refer to accidents that are prone to casualties, and my accumulated working years in special types of work meet the above requirements. For example, an employee has been engaged in heavy manual labor for 5 years and underground work for 3 years. Meet the above-mentioned special type of work conditions; Engaged in other jobs harmful to health for 8 years. In addition, is it recorded and filed?

2) Employees who meet the retirement conditions for special types of work and who have reached the above retirement age should retire. However, according to the maximum retirement conditions of special posts, the time spent in several special posts can be added up. "Labor Law" on the specific division and provisions of special types of work (

1) The list of special jobs must be confirmed by the labor and social security department at or above the prefecture level. Men must be at least 55 years old, and women must be at least 45 years old. The types of work and employment certificates that are harmful to the safety of boiler workers, others and surrounding facilities are also one of the contents examined by the Social Security Bureau. Laborers can retire according to special jobs that involve heavy physical labor. The accumulated time of engaging in special types of work meets the retirement conditions of special types of work. The general name of the post categories of special operators who have been engaged in toxic and harmful operations for 3 years. Drivers who have engaged in more than two special jobs.