Is the argon arc welding certificate the same as the welding certificate?

Need to apply for welding certificate.

Argon arc welding is a welding technology using argon as shielding gas. Also known as argon shielded welding. Argon shielding gas is introduced around arc welding to isolate the air in the welding zone and prevent the welding zone from oxidation.

Argon arc welding technology is a kind of welding technology developed on the basis of ordinary arc welding principle. Argon gas is used to protect metal welding materials, and the welding materials are melted into liquid on the welded substrate by large current to form a molten pool, so that the welded metal and welding materials can achieve metallurgical bonding.

Fusion welding and hot cutting operations (electric welding, gas welding, arc welding, electric welding and gas cutting, etc. ) also called work permit. The issuing agency-Work Safety Supervision Administration has the necessary employment certificate. You don't work without a certificate. It is divided into fusion welding and hot cutting operations, pressure welding operations and brazing operations. The certificate is a magnetic card, which is common throughout the country.

The operation certificate of special operations personnel is a certificate issued by the State Administration of Work Safety to implement the access filing system for special industries according to the requirements of the Regulations on the Administration of Work Safety in Construction Projects, which can prove that the holder has been trained in professional safety technology, laws and regulations and professional ethics, and registered in the local work safety bureau.

Special operators include: electricians, metal welding and cutting operators, lifting machinery operators, drivers of special motor vehicles in the field (factory), climbing and erection operators, boiler operators (including water quality tests), pressure vessel operators and refrigeration operators.

Vertical transport machinery operators, installers, signalmen, etc. , as well as other operations proposed by the comprehensive management department of production safety of provinces, autonomous regions and municipalities directly under the Central Government or the competent department of industry in the State Council and approved by the former State Economic and Trade Commission.

Extended data:

According to the difference of covered electrode, argon arc welding can be divided into two types: melting argon arc welding and non-melting argon arc welding.

Non-melting electrode for argon arc welding;

Working principle and characteristics: Non-melting electrode argon arc welding is that the arc burns between the non-melting electrode (generally tungsten electrode) and the workpiece, and inert gas (generally argon gas) which does not react with the metal flows around the welding arc to form a protective gas cover, so that the tungsten electrode, the arc, the molten pool and the high-temperature metal near the heat affected zone do not contact with air, which can prevent oxidation and absorb harmful gases. So as to form a dense welded joint with excellent mechanical properties.

Argon arc welding melting electrode;

Working principle and characteristics: the welding wire is fed through the wire wheel, and the conductive nozzle conducts electricity, so that an arc is generated between the base metal and the welding wire, and the welding wire and the base metal are melted. The inert gas argon is used to protect the arc and melt the metal for welding.

Different from TIG welding: one is that the welding wire is used as the electrode, which is continuously melted and filled into the molten pool, and then condensed to form a weld; The other is to use protective gas. With the application of MIG welding technology, shielding gas has developed from a single argon gas to a variety of mixed gases. For example, when argon or helium is used as the shielding gas, it is called MIG welding.

When the mixed gas of inert gas and oxidizing gas (O2 and CO2) is used as shielding gas, or CO2 gas or CO2+O2 mixed gas is used as shielding gas, it is collectively called MIG welding (internationally referred to as MAG welding for short). Judging from its operation mode, semi-automatic MIG welding and argon-rich gas shielded welding are the most widely used at present, followed by automatic MIG welding.

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