Titanium alloy plate expansion joint manufacturing method
The technology of a titanium alloy plate and a production method is applied in the production field of titanium alloy plate expansion joints to achieve the effects of prolonging the service life, ensuring the use performance and reasonable process.
Inactive Publication Date: 2012-11-21
NANJING DUBLE METAL EQUIP ENG
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Problems solved by technology
[0004] The purpose of the present invention is to solve the defects that are easily produced in the production process of the titanium alloy plate (such as TA10 plate) expansion joint, the present invention provides a TA10 expansion joint Material selection method and production process
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[0014] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. figure 1 The bellows are pressed by conventional mechanical means. In the figure, hydraulic press 1, forming mold upper mold 2, TA10 half-wave blank 3, forming mold lower mold 4, and mobile operation platform 5. Left half-wave 6 of TA10 expansion joint unit, right half-wave 7 of TA10 expansion joint unit.
[0015] It is particularly important to select the billet material in the early stage of TA10 expansion joint production. Select large-scale non-ferrous metal manufacturers and good quality tube blank materials to ensure the use of low iron oxide (recognized in the industry) TA10 plate or B-type explosive composite plate clad TA10 plate, the key The content of impurity elements is Fe%≤0.10%, O%≤0.10%, the elongation rate of TA10 plate is ≥35%, and the delivery state is hot-rolled, the scale is removed by mechanical processing, and the surface has ...
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Abstract
The invention discloses a titanium alloy plate expansion joint manufacturing method. Half-waves of an expansion joint are integrally stamped, and joint welding is performed according to sections, namely a forming mode that two half-wave blanks are welded to form a unit is adopted. A process of two-time heat treatment is adopted, the first heat treatment includes that integral stress relieving heat treatment is adopted after the half-wave blanks are welded to form the unit, and the second heat treatment includes that integral heat treatment is adopted after the expansion joint half-waves are installed and welded to form multiple independent units which are welded to form the expansion joint, and a process of integral material performance recovery heat treatment is adopted after welding joints are qualified in nondestructive testing. Therefore, quality of expansion joints, especially quality of welding seams can be guaranteed, and usability of the expansion joints is guaranteed.
Description
technical field [0001] The present invention relates to The production of titanium alloy plate expansion joints, especially the material selection and production process of TA10 expansion joints. Background technique [0002] As a pipeline compensation component, bellows expansion joints are widely used in fields such as electric power, petrochemical, heating, steel, and urban construction. Its function is to play a compensating role in the connection between power or heat pipe network, equipment and pipeline, equipment and equipment. The bellows expansion joint compensates the position movement of the piping system or equipment due to temperature difference (or mechanical movement) by its axial expansion or angle change; eliminates the vibration of the equipment when it is started, parked or under normal operating conditions. Therefore, the stress distribution of the bellows must be uniform, and there should be no stress concentration. The non-ferrous metal TA10 expansion...
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IPC IPC(8): B23P15/00C22F1/18
Inventor 高利霞周景蓉李永远沈小斌陶娟
Owner NANJING DUBLE METAL EQUIP ENG