Detection instrument for bonding strength of ferromagnetic coating of remanufactured parts

Abstract

The invention relates to a detection instrument for the bonding strength of a ferromagnetic coating of remanufactured parts. The detection instrument comprises a load driving mechanism, a control device, a detection device and a supporting mechanism, wherein the load driving mechanism comprises a servo motor as a power device, a transmission mechanism, and a pressure head assembly connected with the transmission mechanism, the servo motor is arranged on one end surface of a driving mechanism shell, the transmission mechanism comprises a screw and a nut moving sleeve, the screw is connected with the servo motor, and a pressure spring, a pressure-bearing annular washer and a force transducer are sequentially arranged on one side of the nut moving sleeve; one side of the force transducer is adjoined with a pressure head seat, the pressure head assembly is embedded in the pressure head seat, a pressure head is embedded in the tip end of the pressure head assembly, and the nut moving sleeve and the pressure-bearing annular washer are arranged in the driving mechanism shell in a peripheral fixed axial sliding manner; the detection device comprises the force transducer, a magnetic memory probe on a loading platform, and a magnetic memory signal acquisition device; the control device controls the servo motor to run. The detection instrument has the advantages of being simple in structure, and accurate and stable in detection.

Description

technical field [0001] This patent belongs to the detection technology field of remanufacturing, in particular to a ferromagnetic coating bonding strength detector for remanufacturing parts. Background technique [0002] Remanufacturing is the process of bringing old machinery and equipment back to life. It uses the old machinery and equipment as the blank (Core), adopts special technology and technology, and carries out a new manufacturing on the basis of the original manufacturing, and the remanufactured products are no less than the original new products in terms of performance and quality. Remanufacturing engineering is a series of technical measures that use surface engineering technology as the main method to repair waste parts, achieve new products, or even exceed the performance of new products. Coating technology is used in industrial production as a widely used surface engineering technology. The sprayed particles hit the surface of the substrate in a molten or s...

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Problems solved by technology

Existing non-destructive testing instruments such as acoustic emission are used to detect the indentation failure test of tough coatings. Due to the large plastic deformation of the coating, the fracture failure of the coating interface cannot be achieved even though the indentation depth is large, or even the substrate is crushed. Effective acquisition, therefore, it cannot be applied to the measurement of the bonding strength of ferromagnetic coatings on remanufactured parts under heavy loads

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