Semi-automatic straightening method for high-purity aluminum rotating target welding end

Abstract

The invention discloses a semi-automatic straightening method for a high-purity aluminum rotating target welding end. The method includes the steps that after an aluminum alloy tail cover is fixed toa rotary clamping device, the rotary clamping device is started to rotate a high-purity aluminum rotating target, the straightness of an aluminum alloy end is measured through a straightening measurement device, and therefore the inner and outer straightening points and straightening values are determined; a heating device is used for heating the aluminum alloy end, the aluminum alloy end is heated to a specified temperature, a semi-automatic straightening device is placed at an outer straightening point and further abuts against the outer straightening point, the straightening measurement device is placed at an inner straightening point, and the semi-automatic straightening device is manually operated until the moving value of a pointer inside the straightening measurement device reachesa straightening value; and heating by the heating device is stopped, the high-purity aluminum rotating target is cooled to an indoor temperature, and straightening of the high-purity aluminum rotatingtarget is inspected until the straightening value is smaller than or equal to 0.3mm. By adoption of the straightening method, a high-purity target material tube is not deformed, the straightening effect is good and does not rebound, and the straightening precision and rate of finished products are high.

Description

technical field [0001] The invention relates to the technical field of high-purity rotating targets, in particular to a semi-automatic straightening method for welding ends of high-purity aluminum rotating targets. Background technique [0002] High-purity aluminum target refers to a target made of metallic aluminum material with a purity of 99.999%. High-purity aluminum rotating target refers to a tubular rotating target made of a target with a purity of 99.999%. It is used in cutting-edge fields such as electronics, communications, superconductivity, and aerospace. The rotating target is tubular, with high utilization efficiency, but it is not easy to process, and for some materials such as Al, Sn and Cu, etc., due to the poor strength of these metal materials, the tube is easy to bend and deform, and cannot be used directly as a target. It is necessary to install alloy ends made of hard alloys at both ends of the high-purity target tube, and then assemble and weld the al...

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Problems solved by technology

[0003] However, when welding and assembling the alloy end and the high-purity target tube, the welding temperature is high, and the material of the high-purity target tube is soft, which is easily affected by high temperature, causing the high-purity target tube and the alloy end to be relatively skewed or bent Deformation, straightness does not meet the requirements for use

[0004] When testing the straightness of high-purity target tubes, it is necessary to fix and rotate the high-purity target tubes. The fixture device in the existing detection alignment machine is directly clamped on the high-purity target tubes. Due to some metal The strength of the material is poor, and it is easy to squeeze and deform the high-purity target tube

Even when straightening, the straightening device is used to directly squeeze the high-purity rotating target, and the straightening is prone to excessive bending or excessive deformation. It is necessary to repeatedly squeeze and straighten the alloy end. The high-purity target tube susceptible to damage;

[0005] In addition, it is currently impossible to use fully automatic equipment to straighten the high-purity aluminum rotating target, because there must be detectors or sensors in the fully automatic straightening equipment, and the information of the detectors or sensors is received through the control unit (circuit), and then the calibration is controlled. The straightening mechanism produces the corresponding straightening displacement. The measurement results or correction values ​​of automatic straightening need to be transmitted, calculated and fed back through the circuit. There is also an action reaction time for the straightening mechanism to generate corresponding actions after the structure reaches the control command. Therefore, there must be a certain hysteresis in automatic straightening. This hysteresis will cause excessive pressure on the high-purity aluminum target tube during the straightening process, and the aluminum alloy end will be excessively bent or deformed relative to the high-purity aluminum rotating target.

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