직선왕복형 핀마모시험기(PWT-EDN100)

 

1. Test mode and specimen


a. Ejector pin-mold sliding test
- Real contact
- φ1∼16mm(O.D. 1mm step), L 150∼350mm ejector pin specimens
- φ1∼16mm(I.D. 1mm step), L 45∼105mm mold specimens



2. System components and specifications

A. Loading unit
- Lever arm type loading frame
- Automatic loading for 10∼1,000 N
- Loading fluctuation limit : ±1% for static and dynamic
- Load cell built-in for automatic pressure control

Fig. 1 Loading and specimen built-in unit

B. Test specimen built-in unit


- Test specimen holders for ejector pin and mold
- Alignment precision : ±0.05mm
- Convenient loading and unloading system
- Linear bearings for frictionless motion
- Real time friction force measurement : -1,000∼+1,000 N
- Heating block with cartridge type heating elements
- Temperature range available : ambient ∼ 500℃ (1℃ step)
- Real time specimen temperature measurement
- Proper heat insulation and water cooling for load cell
- Use of alignment guide

C. Motion translation unit


- Cam for 30∼70mm strokes (5 steps)
- High speed operation up to 3,000 rpm
- Anti-vibration mechanism
- Motion in lubricant condition
- Use of alignment pins

Fig. 2 Linear motion and Servo motor unit

D. Control motor unit


- Motor speed : 60∼3,000 rpm (1 rpm step)
- Precise speed control driver : ±1 rpm during 10min loaded test
- Real time speed measurement
- Motor capacity : 1 kW or higher
- AC or DC according to unit
- 10 : 1 Reduction gear box
- Anti-vibration mechanism
- Uses of alignment pins for motor

E. Control unit


- Standing type control box
- Precise controls for applied load, motor speed, temperature
- Power on/off switch
- Test start and emergency stop switches
- Auto-stop functions by timer and revolution counter
- Auto-stop functions by over-load and over-temperature sensing
- Data output ports for friction force, motor speed, temperature

F. Machine frame


- Built within 900×900mm table area (recommended)
- Anti-vibration structure and materials

G. Specimen jig and sample specimens for all test methods

3. Data acquisition unit

A. PC-base data acquisition system


- Automatic start and stop control (optional)
- Real time graphic display of applied load, motor speed, temperature data
- Real time recording of applied load, motor speed, temperature data
- Compatible data format with other programs


B. Computer System


- CPU : Pentium III 866MHz or higher
- RAM : PC133 256MB or higher
- M/B : i815E or higher
- VGA : 32MB AGP or higher
- LAN, SOUND cards
- HDD : 40GB or higher
- CD-ROM : 52X or higher
- FDD : 3.5"
- Monitor : 17" or higher
- Keyboard, mouse
- Laser Printer
- O/S : Windows 98SE or higher
- PC Table

 

Fig. 3 Data Acquisition Unit

4. Ejector pin experimental condition


 

▶ Documentation
- Operation manual
- Checkout list of system parts and accessories

▶ Warranty
- 12 months system warranty from the date of installation

▶ Installation
- Complete installation

▶ Set-up for anti-vibration
※ Operational checkout for system functions, rigidity and vibration tolerance
under the most severe conditions
- Vibration width measured at the specimen stage
- Vibration limit at low speed (600rpm) : less than 0.01mm
- Vibration limit at high speed (3,000rpm) : less than 0.03 mm

▶ Set-up condition linearly reciprocating ejector pin wear test machine
- φ3×20mm ejector pin, 60mm mold, 40mm stroke
- Test ① 100N, 30min, 2,000rpm with reduction gear box, RT
- Test ② 200℃, 2,000rpm, 30min, 100N, with reduction gear box