Tantalum pipe can be divided into welded tantalum pipe and seamless tantalum pipe, which are widely used in the fine chemical industry. Tantalum cannot be processed by the common method of processing ordinary metals. Generally, the initial process is forging and heat treatment, and the flat billet or circular medium and small billet are made by hammering and stamping. Seamless tantalum pipe is manufactured by extrusion, pipe diameter reduction, or deep drawing with the plate. The manufacturing method of welded tantalum pipe is to first form a plate strip, then make a pipe shape, and then weld the joint with gas tungsten arc (GTAW). Let me introduce the advantages and processing methods of tantalum pipe.

Here is the content list:

• Functions of tantalum pipe

• Blank opening process of tantalum pipe

• Heat treatment process of tantalum pipe

Advantages of tantalum pipe

Tantalum pipe is used in fine chemical equipment with its excellent corrosion resistance in some extremely harsh corrosive environments.Tantalum pipe has the advantages of uniform wall thickness, good internal surface quality, short production cycle, and easy product quality control in the fine chemical industry, so it has been widely praised in the industry. In addition, tantalum pipe also has high production efficiency. It has the advantages of low cost, easy production of large-diameter pipes and small-size pipes and capillary pipes, good flexibility, suitable for the production of products with small-batch and many specifications, and uniform performance of all parts of pipes.

Blank opening process of tantalum pipe

The blank opening process of tantalum pipe tantalum pipe cannot be processed by the common method of processing general metals. Generally, the initial process is forging and heat treatment. Different from ordinary metals, tantalum cannot be hot processed. The recrystallization temperature of tantalum exceeds 1000 ℃. If heated, excessive oxidation will occur even if a general protective layer is made. For the above reasons, tantalum is generally not hot worked. When hot working is necessary, a protective coating shall be made or carried out in an inert gas atmosphere.

Heat treatment process of tantalum pipe

Since the reaction between tantalum pipe and oxygen is active, it is necessary to avoid heat treatment in an atmosphere even in the presence of a little air. If it is not cleaned very clean, surface pollution caused by hydrogen, oxygen, nitrogen, and carbon will occur and become a brittle structure. Therefore, almost all annealing is carried out in a high vacuum, and the airtightness of the heating furnace must be very high. Tantalum and commonly used Tantalum Alloys do not undergo phase transformation in this temperature range, and the heat treatment is only used for annealing, so the heating temperature and cooling rate are not important. In order to produce complete recrystallization, it is better to heat treat a little longer.

The tantalum pipe independently produced and developed by Nanjing Suntech Metal Equipment Co., Ltd. fully includes the above-mentioned advantages. It has good quality, excellent workmanship, high quality, and low price, and has been widely praised by the production and processing industries related to fine chemicals.