微噴帶激光打孔機的試驗研究.pdf

1、中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文微噴帶激光打孔機的試驗研究姓名：王永濤申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)機械化工程指導(dǎo)教師：封俊曾愛軍20030601AbstractAkindofpunchedthinsoftspraytape，introducedintoourcountryasanewwater—savingtechniquein90s，hasbeenpopularizedwidelyforitsadvantageofanticloggingan

2、dlowerpriceThemechanicaldrillingisatraditionalwayintheproductionofthetapeTherearemanyproblemsaboutthemechanicaldrillingtape，oneofthemostimpoaantissuesisthatitcannotbesuitableinthethickerorhardertape，theotheristheirregula

3、rshapeandton曲edgeonthehole，whichleadstobadflowuniformityInthispaper，alaserdrillingmachineforthetapehasbeendevelopedbyauthorwhichwasintegratedthelasertech，themechanictechandtheelectronic—tech，andcanproducehighquailtyspray

4、ingtapeTherelationshipsbetweenthelaserperformanceindex，suchaslaserpowerdensities，pulseenergyandenergydensities，andthediameterofholeshavebeensetup，andaexperienceformulabetweentheenergydensityandthediameterofholeshasbeenes

5、tablishedbytheregressionmethod，basedontheexperimentresultsOntheotherhandt11ehydraulicperformanceofthehole，includingflowratecoefficientanduniformityofflowrate，havebeentestedasstandardstoevaluatethequailtyofholespunchedbyl

6、aserdrillingmachine』vithmuchbetterresultsthanthatpunchedbymechanicaldrillingmachineTheshapeofholestakenbyamicroscopephotographcarlalsogivedetailandwellexplanationsforthistestresultsItisnodoubtthatsuccessfuldevelopmentoft

7、helaserdrillingmachinewillbecomeasymboloftheproductiontechnologyofthetapefrommechanicaltechnologytolaserage，andwillendthetechnicalmonopolizationoverseasinthisfieldandwillpromotethepunchedthinsoftspraytapeproductionandapp