Preparation method of 6061 catheter

The invention provides a preparation method of a 6061 conduit, which comprises the following steps: sequentially heating, extruding, primary annealing, primary rolling, secondary annealing, secondary rolling, quenching and aging a cast ingot to obtain the 6061 conduit. Researches show that appearance of orange peels on the surface of the pipe is related to textures generated in the material deformation process, generation of the textures is related to uneven grain deformation, large-size grains (coarse grains) deform, and small-size grains (fine grains) do not deform evenly; the further refining of pipe grains is an effective method for solving the problem of orange peel generated by bending and flaring. The method provided by the invention can solve the problems of bending and flaring orange peel of a T6-state conduit of 6061, and the prepared conduit material is relatively high in comprehensive performance. 本发明提供了一种6061导管的制备方法，包括：将铸锭依次进行加热、挤压、一次退火、一次轧制、二次退火、二次轧制、淬火和时效，得到6061导管。本发明经过研究发现，管材表面橘皮的出现与材料变形过程中产生的