Kev Sib Tham Txog Kev Tshuaj Xyuas Txog Cov Khoom Txiav Txim Siab

Kev Sib Tham Txog Kev Tshuaj Xyuas Txog Kev Kuaj Cov Machinery

Mechanical casting zoo, nrog rau qhov zoo tshaj plaws zoo ntawm mechanical casting, pom ntawm zoo, kev siv ntawm zoo. Nws cov kev cai, feem ntau nyob rau hauv qhov chaw thiab cov ntaub ntawv hais txog cov ntaub ntawv tau muab teev meej meej. Yuav kom ua tau zoo ntawm cov neeg kho tshuab casting, casting txhua yam ntawm cov khoom, tshwj xeeb tshaj yog tom qab tu, yuav tsum tau nqa tawm kev soj ntsuam zoo. Txhua yam tsis raug kho, tom qab kho kom ua tau raws li cov kev cai, tsis cuam tshuam rau tus neeg siv yuav tsum tau muab ua patched.

1, kev soj ntsuam ntawm kev ua tsis ncaj

1) Soj ntsuam ntawm qhov muag pom tseeb Thaum kuaj xyuas cov teeb meem xws li kab nrib pleb, qhov tob hauv qhov ntswg thiab qhov ntswg, nplaum xuab zeb thiab lwm yam teeb meem tshwm sim rau qhov pom ntawm Machinery Castings nrog lub qhov muag liab qab los yog los ntawm kev siv magnifying iav thiab hau rauj, thiab lwm yam. ntsuas cov cuab yeej, pwm thiab ua haujlwm Platform, thiab lwm yam los xyuas seb qhov loj ntawm cov khoom siv kos duab kos tau zoo li cas, muaj ntau yam kev ntsuas kev ntsuas seb qhov nyhav li cas ntawm qhov kev ua haujlwm ntawm qhov kev sib tw.

2) Kev txheeb ntom ntom ntws deg

① Fluorescent Detection method: cov khoom siv fais fab ntawm lub cev ua kua fluorescent, vim yog lub plawv ua rau lub plawv, cov kua fluorescent nkag mus rau hauv qhov chaw ua hauj lwm casting qhov teeb meem, ces tshem tawm cov khoom siv dag thiab so, muab tso rau hauv ultraviolet (mercury quartz teeb) irradiation. Kev siv fluorescent kua los ntawm ultraviolet lub teeb txoj kev ntxhib ntxoo, tuaj yeem txiav txim siab cov kab tawg thiab lwm yam kev txhawj xeeb hauv lub vev xaib.

② kev thim xim: kev siv cov permeability ntawm cov kua, qhov ntom ntawm cov neeg kho tshuab raug casting coated nrog ib txheej ntawm cov kab permeability ntawm cov xim coloring (xws li kerosene, acetone, pleev xim thiab lwm yam sib tov), kom txog thaum cov kua nkag mus rau hauv so ntog Ntawm qhov xim ntawm cov xim kua xim, nws txau nrog ib txheej zinc dawb thiab dawb zaub hmoov, ces qhov seem ntawm qhov xim ntawm tus neeg sawv cev ntawm cov xim thaij no tau muab ntxais rau qhov chaw ua kom pom cov hmoov, uas ua rau pom zoo.

3) Tshawb fawb sab hauv

① duab tshav dav hlau: pom kev kho qhov teeb meem tuaj yeem pom hauv lub castings, xws li pores, shrinkage, kab nrib pleb, cov pob tw thiab lwm yam. Daim duab 2-10 qhia tau hais tias daim duab radiographic. Rau cov Machinery Castings tseem ceeb, xws li kev tiv thaiv kev lag luam nrog Class I Machinery Castings, feem ntau yuav tsum tau mus txog 100% txoj kev tshawb xyuas txoj kev tshav ntuj. Feem ntau yog siv rays: X-ray thiab g-rays. Qhov nkag mus ntawm lub qub tshaj tom kawg, tab sis lub rhiab heev siab tshaj qhov kawg, cov rays tau nkag mus rau hlau, yog li hais tias zaj duab xis rhiab. Thaum lub tshav tawm mus rau qhov khoom, nws nrog lub atoms hauv qhov khoom, thiab lub zog ntawm txoj kab yog tsis tu ncua kev nqus thiab ua kom tawg mus qis. Qhov ntau dua qhov ceev ntawm qhov khoom, ceev lub zog lwj, qhov ceev ntawm cov qhov thiab cov thawv ntuag hauv Machinery Castings yog ntau tsawg tshaj qhov ceev ntawm cov hlau. Thaum cov rays thiab cov teeb meem no ua, qhov attenuation me dua thiab lub zog ntawm zaj duab xis yog loj tshaj qhov ntawm tus defect- Qhia tau tus duab ntawm tus kho raws nyob rau hauv zaj duab xis.

② ultrasonic soj ntsuam: mechanical casting kuj tuaj yeem pom muaj nyob hauv cov kev tsis haum, xws li pores, kab nrib pleb, pob tw, xws li xoob. Rau steel castings, siv hom no los xyuas txog qhov siab tshaj plaws phab ntsa thickness (1000mm) ntawm ib txoj kev. Ultrasonic kuaj nrog kev khiav hauj lwm zaus ntau dua 1MHz. Ultrasonic tsis propagate ntawm ib nrab mus rau lwm tus interface, tshwj xeeb tshaj yog thaum ultrasound kis tau los ntawm cov hlau mus rau saum huab cua, yuav luag 99% ntawm lub reflection ntawm lub interface rov qab. Ultrasonic kuaj yog daim ntawv thov ntawm no feature kom nrhiav tau cov tsis xws nrog cov neeg kho tshuab casting. Thaum txoj kev sojntsuam maj mam txav ntawm cov neeg ua haujlwm, yog tias tsis muaj kev kho rau hauv kev kho tsheb, tsuas yog cov T dej ua piv txwv ntawm qhov kev sojntsuam thiab lub B uas ua rau hauv qab ntu yog pom ntawm qhov tshuaj ntsuam oscilloscope. Yog hais tias muaj ib qho kev txhim kho nyob rau hauv ib feem ntawm cov neeg ua hauj lwm casting Nws tseem muaj F-wave reflected los defect, ntau dua qhov defect, qhov siab dua qhov siab ntawm F-nthwv dej, uas tuaj yeem txiav txim siab qhov chaw thiab qhov phem ntawm qhov kho cov neeg kho tshuab casting.

③ kev kuaj siab: lub siab, kev xau nrog cov Machinery Castings, xws li cov twj, cov khoom siv, thiab lwm yam., Yuav tsum tau ua kev sim siab los xyuas seb puas muaj qhov nyob hauv cov khoom siv dag kho qhov teeb meem. Thaum qhov kev kuaj ntawd yuav muaj ib feem ntawm huab cua (lossis dej, roj, thiab lwm yam) rau hauv kev sib xyaw cov cav tov uas raug kaw, xws li cov khoom sib txuas ntawm cov kab nrib, qhov, thiab lwm yam. . Kev ntsuam xyuas siab feem ntau yog ntau dua 30 txog 50% ntawm kev ua haujlwm ntawm kev ua hauj lwm siab, uas yog ib qho kev ntsuam xyuas pom kev nrig txhua yam. Thaum cov neeg kho tshuab casting tsis yoojyim rau ib lub khoob khoob khov, uas tsis tuaj yeem nqa tau tawm kev sim siab, txoj kev yuav siv los kuaj cov neeg ua haujlwm nkag mus ntawm kerosene compact.