ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector

ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector

ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector Introduction

The eddy current testing machine consists of an instrument system, rotating probe system, probe servo system (including probe floating device), detection and positioning system, electrical control system, etc. In order to adapt to the possible large tolerance of shape and position, the device is designed with a probe guiding device, collision avoidance device and probe floating device. This device allows the position tolerance of cylinder bore to the positioning pin bore up to plus or minus 5mm. At the same time, the collision avoidance device can automatically start the stop procedure when the comprehensive tolerance between the position of the cylinder block and the positioning of the cylinder block exceeds this range, so as to avoid damaging the cylinder block and the equipment.


Technology core_Rotating Probe System

It is the technical core of this equipment. Automatic eddy current testing requires a stable relative motion (scanning motion) between the probe and the surface of the product to be inspected. The effective detection area of the probe is 1 mm*1 mm when the front end of the probe passes through the product to be inspected. Therefore, in order to achieve full coverage detection of cylinder inner surface, it is necessary to make the probe screw scanning on the cylinder's inner surface. The rotating probe system of BKN can be used in conjunction with the eddy current equipment system of BKN, which can bring the equipment efficiency into full play to a great extent. The BKN rotating probe system has the characteristics of high speed, stable operation, reliable signal transmission and zero maintenance.

Technology Overview of ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector

Cylinder specificationF1A:φ88mm*100mm(cylinder diameter * cylinder center distance)
F1C:φ95.8mm*110mm(cylinder diameter * cylinder center distance)
Detection accuracyStandard parts 0.5mm*0.5mm (deep* diameter) flat bottom hole
Cylinder number4
Detection methodProbe Rotator + Servo System
Charging wayManual tray Charging
Detection methodAutomatic manual switchable
Blanking methodManual
Missing detection rate0%
False alarm rate5%
Inspection head distance0.5mm
from cylinder bore inner wall
Probe rotator radial runout<0.05mm
Detection cycle<300 seconds (feeding 5 seconds + positioning 3 seconds + scanning 140 seconds + moving between probe cylinder holes for 100 seconds + positioning returning for 3 seconds + cutting 5 seconds + other time 44 seconds)

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