Due to the strong activity of titanium tube, in the implementation of titanium tube welding, the control of welding temperature, gas protection effect and welding environment have strict requirements. A little carelessness will have a great impact on the quality of welding, and in serious cases, it will lead to product obsolescence. Practice has proved that by analyzing the main factors affecting the quality of welding, determining the key process of welding, and strengthening the control of the environment, personnel, welding parameters and methods in the welding process, the welding quality of titanium tube materials can be further improved to prevent the emergence of welding waste.
In recent years, a new titanium pipe tubing is widely used. Titanium alloy because of its light weight, high strength, corrosion resistance and other characteristics, in addition to being widely used in aerospace, petrochemical, machinery manufacturing and other fields, but also used in the construction of the tube system of surface ships. However, because titanium alloy is an active metal, it has a great affinity for oxygen, hydrogen, nitrogen and other gases at high temperatures, i.e., it has a strong ability to absorb and dissolve gases, which is especially strong in the welding process as the welding temperature rises. Practice has shown that if the titanium alloy and oxygen, hydrogen, nitrogen and other gases in the welding process of absorption and dissolution is not controlled, the product will be scrapped. Therefore, the welding of titanium pipe joints must be effectively prevented and controlled to meet the quality requirements of welding.
Welding requirements for titanium pipe joints:
Welding personnel should wear clean work clothes, there can be no oil present. Welding gloves should be selected from white gauze gloves, and it is strictly prohibited to wear cotton thread and other fabric gloves.
Welding platform layout, welding joints welding area wire brush and other materials should be stainless steel materials, is strictly prohibited to use carbon steel and other polluting materials.
Welding site should be set up as far as possible indoors or in a dedicated welding studio. Smoking is strictly prohibited indoors. The environment should be kept clean and dry. The room temperature should not be lower than 5℃, and air convection should be strictly controlled.
In order to obtain good welding quality, the end of the receiver should be processed into a V-bevel as far as possible, and the surface of the welding area and wire should be degreased with acetone.
