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Related Manuals for BAQ kaloMAX NT II
Summary of Contents for BAQ kaloMAX NT II
- Page 1 High-precision wear resistance tester kaloMAX NT II Manual...
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Page 2: Table Of Contents
1 GENERAL INFORMATION ABOUT MEASURING WEAR RESISTANCE ON THIN LAYERS.........................4 1.1 O ...........................4 VERVIEW 1.2 C ...............5 LIMATIC INFLUENCES ON TRIBOLOGICAL PROCESSES 1.3 A ........................5 BRASIVE SLURRY 1.4 P .......................6 LACE OF INSTALLATION 1.5 H ..................6 ANDLING THE ABRASIVE SLURRY 2 TEST PREPARATIONS.....................7 2.1 S ).....7... - Page 3 5.1.2 T ..........................16 HE MENUS 5.1.3 T ..........................16 EXT INPUT 5.1.4 I ....................17 NPUT OF NUMERICAL VALUES 5.2 G ......................17 RINDING PARAMETERS 5.2.1 I ........................... 18 NPUT RANGE 5.3 S ........................18 TART 5.4 M ........................19 AIN SCREEN 5.5 M ..........................19 5.6 M...
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Page 4: General Information About Measuring Wear Resistance On Thin
In a collaboration between the Fraunhofer Institute for Surface Engineering and thin films (IST) and the company BAQ GmbH, the method of ball cratering tests according to DIN EN 1071-2 has been adapted to tests of thin layers. A method for testing the wear resistance of thin layers (µm range) has been developed. -
Page 5: Climatic Influences On Tribological Processes
BAQ kaloMAX NT II Manual Furthermore the device can be used for tests according to the cap grinding method (DIN EN 1071-2). Climatic influences on tribological processes As in every other tribological process, the ambient temperature and humidity affects the abrasion process. Naturally, this applies also to the determination of wear resistance by means of a high-precision wear resistance tester. -
Page 6: Place Of Installation
BAQ kaloMAX NT II Manual homogeneous wear craters (free from deep furrows) are obtained on thin layers. This is a basic condition for the quantification of the wear volume (Vv). Furthermore, the low abrasiveness of the slurry allows measurements in the range of µm. Because of the viscosity, the slurry does not spread out on the ball during the grinding process, but adheres on the grinding trace around the ball. -
Page 7: Test Preparations
BAQ kaloMAX NT II Manual Do not keep the abrasive slurry near by heat sources (e.g. radiators, solar heat). Most suitable would be a drawer near by the tester. It is recommendable to use a reference sample (e.g. standard layer) to check the ... -
Page 8: Grinding Speed Ball Or Shaft Revolutions Per Minute
BAQ kaloMAX NT II Manual grinding path will be done automatically. The ball diameter must be entered. The geometrical values of the device (distance between the supporting points, diameter of the shaft at the supporting points) will automatically be taken into the calculation. -
Page 9: Cleaning The Shaft
BAQ kaloMAX NT II Manual Cleaning the shaft The contact surfaces of the rubber rings on the shaft must be cleaned with ethyl alcohol before the test. If the contact surfaces of the rubber rings are contaminated with abrasive slurry, this will decrease the friction. Furthermore, the rubber rings may not be damaged. -
Page 10: Filling The Cartige With Abrasive Slurry
BAQ kaloMAX NT II Manual Filling the cartige with abrasive slurry Take care that the slurry has as few air bubbles as possible, when filling the cartidge. Close the cartidge with a blind plug and then fill it maximum half-full. -
Page 11: Test Execution
BAQ kaloMAX NT II Manual stirring rod. The slurry should not be drawn up from the bottom of the bottle but from the middle of the filling quantity. Clean the outside of the pipette. Then place the pipette into the holder. -
Page 12: Further Tests
BAQ kaloMAX NT II Manual After a running-in period of about 0.5 min, the abrasive slurry should be evenly spread around the ball (see figure). Picture 2: Evenly spread abrasive slurry Further tests Remove the ball from the shaft and clean it with ethyl alcohol. Also clean the specimen. -
Page 13: Analysis By Surface Profiler
BAQ kaloMAX NT II Manual Analysis by surface profiler For an analysis by a surface profiler (determination Grinding Stylus of the depth of the wear crater), the scan should be direction Wear taken at right angle to the grinding direction and... -
Page 14: Analysis By Microscope
BAQ kaloMAX NT II Manual The formula for the wear coefficient is: ( 4 ) = Wear coefficient [m = Wear volume [m = grinding path [m] = Bearing strength [N] A bearing strength (F ) of 0.54 N can be adjusted by means of the provided gauge. -
Page 15: Handling
BAQ kaloMAX NT II Manual Handling General operating instructions 5.1.1 Key functions By pressing this key the user exits the current function and enters the superordinate menu item. Changed settings are not imported. Using this key completes the editing in one field or selects a subordinate menu item. -
Page 16: The Menus
BAQ kaloMAX NT II Manual 5.1.2 The menus A menu consists of a list of available menu items the highlighted one of which is the active menu item. With the ▲ and ▼ cursor keys you select the active menu item. ENTER selects the active menu item and either opens a screen or sub menu. -
Page 17: Input Of Numerical Values
BAQ kaloMAX NT II Manual 5.1.4 Input of numerical values Open the number input screen to enter numerical values. In the field highlighted in white the entered number is displayed. The ◄ and ► cursor keys are used to shift the cursor in the field. -
Page 18: Input Range
BAQ kaloMAX NT II Manual The pre-pressure for pneumatic dosage can be adjusted by using the rotary knob on the back of the device. The setting is shown on the upper left part of the main screen. 5.2.1 Input range... -
Page 19: Main Screen
BAQ kaloMAX NT II Manual Main screen Press the START button on the main screen to start the grinding process. The current parameters are displayed and can be changed after pressing the corresponding function key. If a set of parameters is loaded, the data record name is indicated in lower left corner of the screen. -
Page 20: Manage Grinding Parameters
BAQ kaloMAX NT II Manual Manage grinding parameters 5.6.1 Change parameters Grinding speed, grinding path, dosage time and ball diameter can be changed in the main screen by pressing the corresponding function key or – by selecting the appropriate menu item in the sub-menu Grinding parameter / –... -
Page 21: Clean Valve
BAQ kaloMAX NT II Manual Use the ▲ and ▼ cursor keys to select the required data record from the list of available grinding parameters and delete it by pressing ENTER. Clean valve For valve cleaning, the valve has to be open for the duration of dosage. There are two options: 1. -
Page 22: Language
License (GPL) or under the GNU Lesser General Public License (LGPL). The free software source code can at least for a period of 3 years be requested from BAQ GmbH. However, please be noted that we cannot provide guarantee with the source code, and there is also no technical support for the source code from us. - Page 23 BAQ GmbH Hermann-Schichting-Str. 14 38 110 Braunschweig Germany Tel. +49 5307 / 95102-0 Fax +49 5307 / 95102-20...