DJW666 magnetic particle testing machine is applicable to the crack detection equipment of bars, pipes, castings, bearings and various kinds of workpieces of ferromagnetic materials. It can conduct circumferential, longitudinal, composite magnetization and demagnetization for workpieces, and the circumferential, longitudinal and composite are all equipped with power-off phase control. The continuous method is used for flaw detection to display magnetic traces in all directions. This machine is controlled by PLC, with all-round magnetism and programmable function. It can automatically realize workpiece rotation → spray magnetic suspension → stop rotation → stop spraying liquid → workpiece clamping → coil moving → section magnetization → observe magnetic trace → demagnetization → manual blanking.
Specification of DJW666 Magnetic particle inspection equipment
1.Equipment composition
--One set of control center (human-machine interface touch screen operation, digital display)
--One set of main machine (including: circumferential and longitudinal transformer, longitudinal magnetizer, circumferential clamping magnetizing mechanism, screw nut pole spacing adjustment mechanism, etc.)
--one set of magnetic suspension spray recovery system
--Darkroom system
--Two sets of coil extension mechanism
--one set of LED UV light system
--One set of rotating observation mechanism
2.Tested workpiece: shaft type (φ 400mm, length 2000mm).
3.Equipment capacity:
Detection efficiency: 15-25 seconds / piece (except observation time).
4.The design standard of this machine:
National standard of magnetic particle testing machine (JB / t8290-2011).
5.Main technical indicators
--The circumferential magnetizing current AC: 0-6000a (effective value) is continuously adjustable, with power-off phase control (no missing detection).
--Longitudinal magnetization magnetic potential AC: 0-18000at (effective value) continuously adjustable, with power-off phase control (no missing inspection).
--Electrode spacing: 0-2000mm.
--Magnetization principle: power on, coil method.
--Magnetization mode: circumferential magnetization, longitudinal magnetization and composite magnetization can be selected flexibly.
--Operating environment: - 10 ℃ - + 40 ℃, relative humidity ≤ 80%.
--Storage environment: temperature - 20 ℃ - 60 ℃, relative humidity ≤ 70%. No corrosive gas dust and strong high frequency electromagnetic pollution.
--Ultraviolet intensity: the ultraviolet intensity at 380mm away from the workpiece shall not be less than 4000 μ w / cm2.
--Sensitivity test: according to the provisions of JB / t6065-92 standard test piece for magnetic particle testing of the mechanical industry of the people's Republic of China, test with Standard No. 2 type a test piece, with clear display.
--Power supply: three phase four wire, 380V ± 20%, 50Hz, about 200A.
--Inspection surface: cracks and other defects on all surfaces of the workpiece.
--Demagnetization: AC: 18000-0 (effective value) attenuation type automatic demagnetization.
--Remanence: br ≤ 0.2Mt.
--Observation speed of workpiece rotation: 4-6rpm.
--Magnetizing coil: inner diameter 450mm. The air cylinder automatically extends when the coil moves.
--Pneumatic clamping: clamping stroke 0-100mm. The stroke of the coil extending out of the cylinder is 0-350mm
--Air supply pressure: 0.4-0.8mp.
--Size of magnetizing power cabinet: 620 * 800 * 1800, size of clamping device: 3200 * 800 * 1400 (excluding darkroom)
--Equipment weight: 2.0T.
6、 Running program: manual and automatic.
The automatic program is: feeding - clamping (magnetizing coil forward) - spraying - magnetizing - (magnetizing coil retracted) - rotating observation (magnetizing coil forward) - demagnetizing - unclamp - blanking. The whole process is controlled by a small industrial PC. The automatic program can be carried out continuously.
