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TheRearchforPreparationandPerformancesof BMIResinCBNPrecisionWhetstone WANLong,ZHANGGuo—wei,HUWei—da,LIUXiao—pan,ZHANGHong一1ei (CollegeofMaterialsScienceandEngineering,HunanUniv,Changsha.Hunan410082.China) Abstract:BMIresinsolutionsynthesizedbyusingBMIresinandthesolventofacetonewasmixedwith CBNabrasiveinproperproportiontoprepareslurry,andthenthewhetstonewaspreparedwiththe processofcasting,acetoneevaporatingandresincuring.Thebestdosageoftheacetonewasanalyzedwith themicrostructureofthewhetstone.Experimentresultshaveshownthat,whenthecontentofacetoneis under16.9,theCBNabrasiveisnotwell— distributedintheBMIresin.However,whenthecontentof acetoneiS23.4， 29.0,theCBNabrasivedistributesuniformly.Nevertheless,asthecontentoface— tonewasupto33.8%,theCBNabrasivedepositsintheBMIresin.Inaddition.whenthecontentoface— toneis23.4andtheBMIresincontentisintheregionof79/6， 169/6,theflexurestrengthandhardness ofthewhetstonearereinforcedwiththeincreaseofthecontentofBMIresin.IfthecontentofBMIresiniS beyond16,itisdifficulttovolatilizetheacetoneastheviscosityofslurriesincreases,whichresultsin theincreaseoftheporosityandthedecreaseoftheflexuralstrengthandthehardnessofthewhetstone. Keywords:resin;casting;CBNabrasive;precisionwhetstone 超精油石主要用于轴承内外圈等零部件的精密磨削加工工序,相对于其他种类的 |
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