Kwintsimi yokwenziwa ngokuchanekileyo kunye nokuhlolwa, ukusebenza kwe-thermal deformation yezinto eziphathekayo yinto ephambili ekunqumeni ukuchaneka kunye nokuthembeka kwezixhobo. I-Granite kunye nentsimbi etyhidiweyo, njengezinto ezimbini ezisetyenziswa ngokuqhelekileyo kwimizi-mveliso, ziye zatsala ingqalelo enkulu kumahluko wokusebenza kwazo kwiindawo ezinobushushu obuphezulu. Ukubonisa ngokubonakalayo iimpawu zoguquko lwe-thermal yazo zombini, sisebenzise umfanekiso wobushushu obuchwephesha ukwenza uvavanyo oluqhubekayo lweeyure ezi-8 zokusebenza kwigranite kunye namaqonga entsimbi enziwe ngendlela efanayo, etyhila umahluko wokwenyani ngedatha kunye nemifanekiso.
Uyilo lovavanyo: Linganisa iimeko zokusebenza ezinzima kwaye ubambe ngokuchanekileyo umahluko
Kolu vavanyo, iiplatifti ze-granite kunye nentsimbi ephosiweyo ezinemilinganiselo ye-1000mm×600mm×100mm ziye zakhethwa. Kwimeko yeworkshop yoshishino efanisiweyo (iqondo lobushushu 25±1℃, ukufuma 50% ±5%), ngokusabalalisa ngokulinganayo imithombo yobushushu kumphezulu weqonga (ukulinganisa ukuveliswa kobushushu ngexesha lokusebenza kwezixhobo), iqonga lisebenza ngokuqhubekayo kumandla we-100W kwiiyure ze-8. I-FLIR T1040 yomfanekiso we-thermal (enesisombululo sokushisa kwe-0.02 ℃) kunye ne-high-precision laser displacement sensor (ngokuchaneka kwe-± 0.1μm) yayisetyenziselwa ukubeka esweni ukuhanjiswa kweqondo lokushisa kunye nokuguqulwa kwendawo yeqonga ngexesha langempela, kwaye idatha yabhalwa kanye ngemizuzu ye-30.
Iziphumo ezilinganisiweyo: Bona ngeso lengqondo umahluko weqondo lokushisa kwaye ulinganise i-gap deformation
Idatha evela kumfanekiso we-thermal ibonisa ukuba emva kokuba iqonga lentsimbi etyhidiweyo lisebenze iyure enye, ubushushu bomphezulu ophezulu bufikelele kwi-42 ℃, eyi-17 ℃ ephezulu kunobushushu bokuqala. Kwiiyure ezisibhozo emva koko, iqondo lobushushu lenyuka laya kutsho kuma-58 ℃, kwaye kwavela ukwabiwa kweqondo lobushushu okwahlukileyo, umahluko wobushushu obuyi-8℃ phakathi komphetho kunye neziko. Inkqubo yokufudumala kweqonga legranite lithambile ngakumbi. Ubushushu bunyuka kuphela ukuya ku 28℃ emva kweyure enye kwaye buzinza ku 32℃ emva kweyure ezisi 8. Umahluko womphezulu wobushushu ulawulwa ngaphakathi kwe-2℃.
Ngokutsho kwedatha ye-deformation, kwiiyure ze-8, i-deformation ethe nkqo kwindawo ephakathi kwendawo yentsimbi yentsimbi yafikelela kwi-0.18mm, kwaye i-warping deformation emphethweni yayingu-0.07mm. Ngokwahlukileyo, i-deformation ephezulu ye-platform ye-granite yi-0.02mm kuphela, ngaphantsi kwe-1/9 ye-iron cast. Ijika lexesha lokwenyani le-laser displacement sensor nayo iyasiqinisekisa esi siphumo: Igophe loguqulo lweqonga lentsimbi etyhidiweyo liguquguquka kabukhali, ngelixa igophe leqonga legranite liphantse lazinza, libonisa uzinzo olomeleleyo olushushu.
Uhlalutyo lomgaqo: Iimpawu zezinto eziphathekayo zinquma ukuhlukana kwe-thermal deformation
Ingcambu ye-deformation ebalulekileyo ye-thermal deformation ye-iron cast ilele kwi-coefficient yayo ephezulu yokwandiswa kwe-thermal (malunga ne-10-12 × 10⁻⁶/℃), kunye nokusabalalisa okungafaniyo kwegraphite ngaphakathi, okubangela ukungahambi kakuhle kwe-heat conduction velocities kunye nokuqulunqwa koxinzelelo loxinzelelo lwe-thermal yendawo. Ngeli xesha, i-iron inomlinganiselo ophantsi wobushushu obuthile, kwaye ubushushu bayo bunyuka ngokukhawuleza xa bufunxa ubushushu obulinganayo. Ngokwahlukileyo, i-coefficient yokwandiswa kwe-thermal ye-granite kuphela (4-8) × 10⁻⁶/℃. Ubume bayo bekristale buxinene kwaye bufana, kunye nomgangatho ophantsi kunye nokuhanjiswa ngokulinganayo kokuqhuba ubushushu. Idityaniswe neempawu zayo eziphezulu zobushushu obukhethekileyo, isenokugcina uzinzo lwe-dimensional kwindawo ezinobushushu obuphezulu.
Ukukhanya kwesicelo: Ukhetho lumisela ukuchaneka, ukuzinza kudala ixabiso
Kwizixhobo ezifana nezixhobo zomatshini ezichanekileyo kunye noomatshini bokulinganisa abathathu, ukuguqulwa kwe-thermal yeziseko zentsimbi kunokukhokelela ekuqhubeni okanye ekuhloleni iimpazamo, ezichaphazela isivuno seemveliso ezifanelekileyo. Isiseko se-granite, kunye nokuzinza kwayo okumangalisayo kwe-thermal, kunokuqinisekisa ukuba izixhobo zigcina ukuchaneka okuphezulu ngexesha lokusebenza kwexesha elide. Emva kokuba ishishini elithile elivelisa iinxalenye zeenqwelo-mafutha lithathe indawo yeqonga lentsimbi kunye neqonga legranite, izinga leempazamo zedimensional lamalungu achanekileyo lehle ukusuka kwi-3.2% ukuya kwi-0.8%, kwaye ukusebenza kakuhle kwemveliso kunyuke nge-15%.
Ngomboniso ocacileyo kunye nomlinganiselo ochanekileyo womfanekiso we-thermal, umahluko kwi-thermal deformation phakathi kwegranite kunye nentsimbi etyhidiweyo ibonakala ngokukhawuleza. Kwishishini lanamhlanje elilandela ukuchaneka kokugqibela, ukukhetha imathiriyeli yegranite enozinzo olomeleleyo lwe-thermal ngokungathandabuzekiyo linyathelo lobulumko lokuphucula ukusebenza kwesixhobo kunye nokuqinisekisa umgangatho wemveliso.
Ixesha lokuposa: May-24-2025