Commonly used stainless steel fusion welding methods include argon arc welding process, high frequency welding process, etc. Different welds will also bring unique properties and respective advantages and disadvantages to stainless steel pots.Topregal has a 15 years professional experience of producing welded steel pipe. We provide high-quality welding stainless steel pipe with daifferent process.We accept customized services to meet all your technical needs.
Working principle:
The principle of stainless steel pipe welding is gas shielded arc welding, referred to as gas shielded welding or gas electric welding. It uses arc as a heat source and gas as a protective medium for melting welding. During the welding process, the protective gas forms a gas protective layer around the arc, which separates the arc and molten pool. Isolated from the air to prevent the influence of harmful gases and ensure stable arc combustion.
Different welding processes and their advantages and disadvantages
Argon arc welding process
Welding stainless steel pipe argon arc welding refers to the process of connecting stainless steel pipes and joints through argon arc welding. This process uses inert gas (argon) to protect the welding area and prevent oxygen, nitrogen and other impurities from entering the weld, thereby ensuring welding quality.
Advantage:
1. High welding quality: The welded joint has high strength and good sealing.
2. Small welding deformation: Since the heat input of argon arc welding is relatively low, the thermal deformation generated during the welding process is small, which is beneficial to maintaining the shape and size of the workpiece.
3. Strong adaptability: Argon arc welding can weld stainless steel pipes of different thicknesses, and does not require high cleanliness of materials, making it suitable for on-site operations.
Shortcoming:
1. High cost: The cost of argon arc welding equipment and argon gas is high and is not suitable for mass production scenarios.
2. High technical requirements for operation.
High frequency welding process
High-frequency welding is a processing method that uses high-frequency current thermal energy to heat steel pipes to the melting point and weld them. It is a common processing method.
Advantage:
1. High production efficiency: fast welding speed and high production efficiency.
2. Stable welding quality: During the high-frequency welding process, the welds are formed uniformly and the welding quality is stable and reliable.
3. High degree of automation: High-frequency welding equipment can realize automated production and reduce labor costs.
Shortcoming:
1. Limited scope of application: High-frequency welding is mainly suitable for welding thin-walled stainless steel pipes. For thick-walled pipes or special materials, it may not meet the welding requirements.
2. Large investment in equipment
Gas metal arc welding
Gas metal arc welding is a method of welding under gas protection using meltable filler metal wire as an electrode. This method can achieve high-speed continuous welding and has high production efficiency.
Advantage:
1. High production efficiency;
2. Strong adaptability and can be used for welding a variety of materials;
3. The welding process is stable and easy to automate.
Shortcoming:
1. Due to the large splash, weld seam cleaning needs to be strengthened;
2. Need to accurately control welding parameters;
3. Equipment investment is high.
Laser welding technology
Laser welding is an advanced welding process suitable for welding stainless steel sheets. This process uses high-energy laser beam as the heat source, which has fast welding speed, small heat-affected zone and high weld quality.
Advantage:
1. Fast welding speed: Laser welding has extremely high energy density and can achieve fast welding.
2. High weld quality: The weld width of laser welding is narrow, the heat affected zone is small, the weld quality is high, and there is no need to add welding wire or solder during the welding process.
3. High degree of automation: Laser welding equipment can be combined with automated equipment such as robots.
Shortcoming:
1.High equipment cost: Laser welding equipment is expensive and the investment pressure is high.
2.Strict requirements on the operating environment: Laser welding has high requirements on the operating environment to avoid the impact of dust and moisture on the welding quality.
Arc welding technology
Advantage:
1. Wide scope of application: Arc welding technology can be applied to welding stainless steel pipes of different thicknesses and materials, and has a wide scope of application.
2. Simple equipment: Arc welding equipment is relatively simple, easy to operate, and suitable for on-site operations.
Shortcoming:
1. Welding quality fluctuates greatly: The welding quality of arc welding is affected by many factors such as the welder’s skill level and operating experience, and the welding quality fluctuates greatly.
2. Large welding deformation: The heat input generated during arc welding is large, which may lead to large welding deformation, and additional measures need to be taken to correct it.
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