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Chongqing Wanvei Instruments' Analysis of Common Problems with Metallographic Pure Iron Samples

2026-05-26
Source: Wanvei Editor

1、imagingdefect

current:

specimensurfacecurrentmanysurface,imaging、Profile,currentheavy。

reason

specimenprocessmiddleforcecompressiondeviationsurfacegrindingdegrees1,Heightlowmanysurfacestructure,mostfinalmicroscopicimaging。

measure

1alladoptsingle to grindingmethod, by lightspecimensurface,compression,avoid、heavy。

2if specimenfixedalreadycurrentmanysurface, can for for when increase by compressiondegrees,specimensurfacedegrees。


2、ruledefect

current

specimensurfacefew, to and currentlydirectionparallel,badsurfacedegrees。

reason

replacehour,upper1largenewsurface; or Glass、worktablesurfacehard,grindinghourspecimensurface。

measure

1replacenewfrontminutedust removal,Heightlowmethod,new。

2timescarry outfront,worktable and Glasssurface,、 etc.。

3if alreadyrule, can upper1low,verticaldirectiongrindingeliminate,again by currentlyprocess。


3、polishingafter

current

Lengthtimemechanicalpolishingafter,specimensurfaceold、,reachmetallographicsurfacerequirement。

reason

  1. 1polishingprocessmiddlepolishing(lapping),lubrication and grindingeffect。
  2. 2frontstageallgrindingeliminate,polishingdeep。

measure

  1. 1 1200 and heavynew,eliminatefrontdeep。
  2. 2when increasepolishing,LengthpolishinghourLength,completesurfacepolishing。

    4、aftersurfacepoint

    current

    specimencorrosionprocessingafter,surfacecurrentrule,impactmetallographic structure。

    reason

    specimencleaningaftersurface and hourprocessing,againfanspecimen,point。

    measure

  3. 1currentafter need heavynewpolishingsurface。
  4. 2specimencorrosionafterfirstflushing,againfast,allfan,avoidHigh Temperaturedamage。

    5、groupsminute

    current

    completeafter,microscopelowerminutemetallographic structure,side、,identificationdegreesextremelylow。

    reason

    specimencorrosiondegrees,time,metalmetallographic structure and minutecurrent。

    measure

    1can for specimenconducthourcorrosion,lightLengthtime,。

    2if corrosioneffect, need heavynewpolishingspecimensurface,againhourLengthagaintimesconductstandardprocessing。


    6、aftersurfacegroups

    current

    specimenafterbodysurface,all to metallographic structurestructure。

    reason

    corrosiondegrees、timeLength,specimen heavybad,metallographic structure degreescorrosioncovering。

    measure

    for specimenheavynewpolishing,againtimesconducthourcorrosionhourLength,precisecorrosiondegrees。


     

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