MITECH MH180 User Manual

Hardness tester

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MITECH CO., LTD.
www.mitech-ndt.com
www.ponpe.com

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Summary of Contents for MITECH MH180

  • Page 1 MITECH CO., LTD. www.mitech-ndt.com www.ponpe.com...
  • Page 2: Table Of Contents

    CONTENTS ............................2 1 Overview 1.1 Advantages..............................2 1.2 Main Application &Testing Range......................2 1.3 Technical Specifications...........................2 1.4 Configuration............................. 3 1.5 Working Conditions...........................3 2 Structure Feature &Testing Principle......................6 2.1.1 D Type Impact Device........................... 4 2.1.2 Different Types of Impact Device......................5 2.2 Main Screen...............................5...
  • Page 3: Overview

    1 Overview 1.1 Advantages Wide measuring range. Based on the principle of Leeb hardness testing theory. It can measure the  Leeb hardness of all metallic materials. Large screen LCD, showing all functions and parameters. With EL background light.
  • Page 4: Configuration

    725±30HLE ±12 HLE 12 HLE 508±40HLE 822±30HLC ±12 HLC 12 HLC 590±40HLC Measuring range:HLD(170~960)HLD  Measuring direction:0°~360°  Hardness Scale:HL、HB、HRB、HRC、HRA、HV、HS  Display:segment LCD  Data memory:max. 100 groups(relative to impact times 32~1)  Working power:3V(2 AA size alkaline batteries)...
  • Page 5: D Type Impact Device

    2 Structure Feature &Testing Principle 2.1 Structure Feature HARDNESS GAUGE POWER : 2 X 1.5V 4- Nodular Cast Iron Material Option: 5- Cast Aluminum Alloys 6- Copper-Zinc Alloys 0- Steel and Cast Steel 1- Cold Work Tool Steel...
  • Page 6: Different Types Of Impact Device

    2.1.2 Different Types of Impact Device D+15 2.2 Main Screen Below is the main display screen: Average Icon Memory Icon Battery Info Measured Value Hardness Scale Impact Times Direction Material No Instruction of the Main Display Screen: Material:The present presetting material.
  • Page 7: Structure Feature &Testing Principle

    Material Selection Hardness/Strength Plus or Up switch Hardness Scale Direction change Minus or Down Selection Print data Impact Times set Data logging or Enter Press key to store present group of measured value into memory. This operation is only valid ...
  • Page 8: Impact Device Selection

    3.2 Impact Device Selection Refer to Appendix Table 1 and Table 3 for selection of impact device. 3.3 Preparation of the Sample Surface Preparation for sample surface should conform to the relative requirement in Appendix Table 3. In the preparation processing for sample surface, the hardness effect of being heated or cold ...
  • Page 9: Testing Program

    4 Testing Program 4.1 Start-Up Insert the plug of the impact device into the socket of impact device on the instrument.  Press the key,now power is on. The instrument is in working mode.  4.2 Loading Pushing the loading-tube downwards until contact is felt.
  • Page 10: Notification

    After 2 seconds, the buzzer will alert a short howl, and display the mean measured value. NOTE:HL values tested by different impact devices are different,eg.780HLD≠780HLC 4.6 Notification Replacing the impact device must be done during Power off. Otherwise the main body could not ...
  • Page 11: Hardness/Strength Testing

    Table 5-2 Material No Material Material No Material Mild steel Cr-Mo steel High carbon steel Cr-Ni-Mo steel Cr steel Cr-Mn-Si steel Cr-V steel Super strength steel Cr-Ni steel Stainless steel 5.3 Hardness/Strength testing Press key to switch between hardness testing and strength testing (бb) .
  • Page 12: System Reset

    Press the key on the desired file. It will automatically delete the file, and display “-DEL”. Press the key, at any time, to exit the data logging function and return to measurement mode. Note : Do not shut down the instrument while deleting data. It could lead to unpredicted consequence if shutting down while deleting.
  • Page 13: Maintenance & Servicing

    6 Maintenance & Servicing 6.1 Impact Device Maintenance After the impact device has been used for 1000--2000 times, please use the nylon brush provided to  clean the guide tube and impact body. When cleaning the guide tube, unscrew the support ring first, then take out the impact body, spiral the nylon brush in counter-clock direction into the bottom of guide tube and take it out for 5 times, and then install the impact body and support ring again.
  • Page 14: Table

    131~ 127~364 19~164 23~210 32~168 Cast aluminum 23.8~ 22.7~ 23.8~ alloys 84.6 85.0 85.5 40~173 BRASS(copper- zinc alloys) 13.5~ 95.3 BRONZE(coppe r-aluminum/tin 60~290 alloys) Wrought copper 45~315 alloys Table 2 Material Strength σ (MPa) Mild steel 350~522 374~780 High-Carbon steel 500~710...
  • Page 15: Table

    Table 3 Type of impact device DC(D)/DL D+15 Impacting energy 11mJ 11mJ 2.7mJ 90mJ 11mJ Mass of impact body 5.5g/7.2g 7.8g 3.0g 20.0g 5.5g Test tip hardness: 1600HV 1600HV 1600HV 1600HV 5000HV Dia. Test tip: Material of test tip:...
  • Page 16: Table

    Table 4 Type Sketch of non-conventional Remarks Supporting ring For testing cylindrical outside surface Z10-15 R10~R15 For testing cylindrical outside surface Z14.5-30 R14.5~R30 For testing cylindrical outside surface Z25-50 R25~R50 For testing cylindrical inside surface HZ11-13 R11~R13 For testing cylindrical inside surface HZ12.5-17...
  • Page 17: User Notes

    Warranty : The product is guaranteed for one year since purchased. Log www.mitech-ndt.com or follow our company official public platform to register for maintenance. Please fill the blanks as required, if the product is not registered for maintenance, it will follow the date of manufacturer.

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