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Palma TechnologyAbout productsPin Hole and Crack Detector

Pin-Hole and Crack Detector

▒ SPECIFICATIONSGeneral Description

Hole and crack is caused by the internal and external factors of a product during production process in steelmaking and other non-ferrous industry. Hole and crack detector is a device detecting this hole and crack.

The detector is designed to record the position and size of hole and crack in defective products, thus enabling us to observe the defects through the image for analysis of the cause, ultimately to increase product quality and efficiency in production.

It does not require any additional devices such as edge mask due to its using CCD camera, and help to extend product life time through using LED as a source of light, thus reducing maintenance and repair costs.

C - Frame Type High Brightness LED를 이용한 Light Source

Hole detection through using laser photopenetration

On-Line Hole 검출 화면

Principle & Method

Light transmission method

System Configuration

Optical Sensor(CCD camera module, Illuminator module)

Switch Panel(local)

Electrical Controller(electrical room or operation room)

Can be modified upon customer request

Special Features

Detection of porous defect(hole, crack, etc) Detection of all defects during photopenetration

Illuminant of 100,000 hours life time

Real time view of defect image size, and position.

Hansu..

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Actual Delivered

POSCO(Pohang) Electrical Steel Mill 2DRL

POSCO(Pohang) Electrical Steel Mill 3HCL

HYSCO(Sunchon) Cold Rolling Mill CGL

HYSCO(Sunchon) Cold Rolling Mill CAL

POSCO(Pohang) Electrical Steel Mill 2HCL

POSCO(Pohang) Electrical Steel Mill 3ACL

Applications

Strip hole and crack detection (CAL, APL, ACL, CPL, CSL, RCL, etc.)

Strip edge crack detection

Side trimmer defect detection

제지, Plastic, Film산업

SPECIFICATIONS

▒ System Specifications

System Performance	Accuracy	φ600 um at 1,000mpm(Real time Image Offer)
		φ100 um at 600mpm(Real time Image Offer)
		φ50 um at 300mpm(Real time Image Offer)
	Edge Dead Band	No dead band
	Permitable Vibration	<±2mm
	Permitable Side Shift	<±50.0mm
	Update Time	50ms to 30seconds(user selectable)
	Response Time	<50ms

Utility	Pure Air	5kg⁄㎠, Dry, Class 3, 2-25A pipe lines
Utility	Water	Non used
Environment	Ambient Temperature	0℃ to 40℃
	Relative Humidity	Non-condensing environment for sensors
	Signal Ground	Maximum 10Ω
	Frame Ground	Maximum 100Ω
	Power	220VAC, 60Hz, 1Phase

▒ Interface

TCP/IP(standard)	Hole information, Configuration
Digital Input	Line status(run, stop, fault), Coil change
Digital Output	Alarm for hole detected
Analog Input	4 to 20mA or DC 0V to 10V, Line speed

▒ Optical Sensor Specifications

Type	C-Frame, Heavy duty steel extrusion
Dimension(mm)	2,650(L) × 460(D) × 1,650(H)
Light Source	High Brightness Light Emit Diode
Detector Module	CCD Camera
Optical Lens	Camera mountable lens and optical band pass filter mounted
Required Cooling	Pure Air, Dry
Temperature Controller	PID Auto-Controller
Cooling Device	Cabinet Cooler
Relative Humidity	Non-condensing environment
Ambient Temperature Range	0℃ to 40℃
Power	220VAC, 60Hz, 1Phase

▒ Switch Panel Specifications

Type	Stand, Stainless steel extrusion
Dimension(mm)	300(W) × 300(D) × 400(H)
Front Functional Switch and Lamp	Power, Local⁄Remote, Detected, Position(OnLine,Parking), E-Stop

▒ Electrical Controller Specifications

Type	19″ Standard Rack Mount
Dimension(mm)	800(W) × 800(D) × 2,000(H)
Peripheral Interface	D⁄I, D⁄O, A⁄I, RS232 and TCP⁄IP(upon customer request)
Ambient Temperature Range	-5℃ to 45℃
Relative Humidity	Maximum 80%RH
Power	220VAC, 60Hz, 1Phase