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1、改性粉煤灰微珠摩擦材料摩擦磨損性能的研究*曲烈，楊久俊，樂俐（天津城市建設(shè)學院材料科學與工程系）孫金鵬，申坤瑞（河北省摩擦材料研究所）ResearchonFrictionalWearBehaviourofModifiedFlyAshBeadsFrictionMaterialLieQu,JiujunYang,LiYue(TianjinInstituteofUrbanConstruction,MaterialScienceandEngineeringDepartment)JinpengSun,KunruiShen(HebeiProvinceGraduate
2、SchoolofFrictionMaterial)摘要：通過定速摩擦試驗,研究了摻加工業(yè)固體廢棄物中提取的粉煤灰微珠的半金屬配方摩擦材料摩擦磨損性能。試驗表明：與未加粉煤灰的對照組比，小粒徑、大摻量的改性粉煤灰試樣摩擦系數(shù)變大，尤其是在低溫段（≤2000C）明顯變大；摻浮石和摻礦渣的試樣摩擦系數(shù)均明顯變小，但僅在2000C時摻礦渣試樣的摩擦系數(shù)稍有增加。與未加粉煤灰的對照組比，所有摻粉煤灰試件磨損率都明顯增加。粒徑小、摻量大的改性粉煤灰試樣相對磨損較小，但在高溫段磨損率變大。摻浮石的試樣比摻礦渣的試樣在高溫段（≥2000C）的磨損率更大。摻加改性粉煤灰
3、有類似摻加磨料的作用，但其高溫段磨損率明顯增大，其原因可能是由于硬度相差大而產(chǎn)生應(yīng)力集中的裂縫缺陷，建議在原配方的基礎(chǔ)上摻加復合填料來改變硬度匹配問題。關(guān)鍵詞：摩擦材料；摩擦磨損；粉煤灰微珠；偶聯(lián)劑。Abstract:Usingfixedspeedtesting，thefrictionalwearbehaviourofthesemimetalliccompoundfrictionmaterialwhichadulterateflyashbeadsfromindustrialsolidwastehasbeenresearched.Theexperimen
4、tshowed:Comparedwiththegroupwithoutflyash,thefrictionfactorofthegroupwithhighercontentandsmallsizemodifiedflyashismuchlarger,especiallyit’sobviouslylargerinthelowtemperaturepart(≤200℃);thefrictionfactorofthegroupwithfloatstoneandthegroupwithscoriaarebothobviouslysmaller,butthefr
5、ictionfactorofthegroupwithscoriaincreaseslittle,onlyinthe200℃.Comparedwiththegroupwithoutflyash,thewear-rateofalltheflyashgroupsincreaseobviously.Thewear-rateofthegroupwithhighercontentandsmallsizemodifiedflyashissamller,butit’slargerinthehigntemperaturepart.Inthehightemperature
6、part(≥200℃),thewear-rateofthegroupwithfloatstoneismuchlargerthanthegroupwithscoria.Adulteratingmodifiedflyashtakesthesimilarroleasaddingabrasive,butthewear-rateincreaseobviouslyinitshightemperaturepart,thereasonisthatbiggerdifferenceofhardnessmakesthestressofcrackdefectconcentra
7、ted,thesuggestiontosolvethisproblemisrecruitsmallhardnessfilling.Keywords:frictionmaterial；frictionalwear；flyashbeads；Couplingagent隨著現(xiàn)代工業(yè)的發(fā)展，人們對新型高性能摩擦材料的需求不斷增加，特別是對能源危機和環(huán)境保護呼聲的日益高漲，以節(jié)能和環(huán)保為目標，采用多學科技術(shù)的交叉，研究具有節(jié)能和環(huán)境保護特征，更高效更可靠的綠色摩擦材料是我國工業(yè)發(fā)展的必然趨勢。我國制備汽車制動器和離合器所用的摩擦材料，幾乎都是用樹脂或橡膠材料作為粘
8、合劑的，用無機、有機*本研究得到天津市科委科研項目基金資助。和金屬等作為增強劑，非金屬、金屬和
