Indlela yokukhetha i-Hardness Tester kwiinxalenye eziphathwa ngobushushu

Zonke iindawo eziphathwe ngobushushu kufuneka zivavanye ubulukhuni ngokuhambelana nemigaqo yobugcisa kwimizobo kunye neemfuno zamaxwebhu enkqubo. Umvavanyi wobulukhuni kufuneka alinganiswe ngeebhloko zesalathiso sobulukhuni ezisemgangathweni ngaphambi kovavanyo, kwaye uvavanyo lobulukhuni lunokwenziwa kuphela emva kokudlula umlinganiselo.

Ngaphambi kokuhlolwa kobulukhuni, umphezulu wovavanyo lwamalungu kufuneka ucocwe kakuhle ukuze kususwe ngokupheleleyo isikali, iileya ezisusiweyo kwikhabhoni, ii-burrs kunye nezinye izinto ezingcolisayo. Akukho zimpawu zesixhobo somatshini ezicacileyo eziya kuhlala kumphezulu wovavanyo. Iindawo mazivavanywe kubushushu begumbi njengemeko eqhelekileyo. Ukuba ubushushu besixhobo somsebenzi buphezulu kancinci kunobushushu be-ambient, uvavanyo aluyi kuqhubeka de isixhobo somsebenzi sibanjwe ngokuthe chu ngesandla.

Iindawo zovavanyo lokuqina kufuneka zicwangciswe njengoko kuchaziwe kumaxwebhu enkqubo. Xa kungekho migaqo icacileyo, iindawo zovavanyo kufuneka zimiselwe kunye ziinjineli zenkqubo kunye nabahloli.

Indlela yokukhetha isiVavanyi soBulukhuni esifanelekileyo kwiinxalenye eziphathwa ngobushushu

1. Abavavanyi bobulukhuni beBrinell basetyenziselwa iindawo eziqhelekileyo eziqhelekisiweyo, ezifakwe i-anneal, ezicinyiweyo nezithambileyo. Izinto zokusebenza zale hlobo zinobulukhuni obuphantsi, ukuguguleka okuhle kunye nesakhiwo sangaphakathi esifanayo. I-indenter ye-carbide eqinisiweyo enobubanzi obukhulu yabavavanyi beBrinell idala indawo ebanzi yokugoba egubungela izakhiwo ezininzi ze-metallographic. Ukufundwa kobulukhuni okuqhelekileyo okufunyenweyo kuzinzile ngakumbi kwaye kunokubonakalisa ngokwenene iipropati ezipheleleyo zoomatshini zezinto.

I-SCB-3.2 (Imodeli yoqobo i-ZHB-3000A) yokuvavanya ubunzima beBrinell iyacetyiswa kuvavanyo lwakho lweBrinell. Cofa ngezantsi ukuze uyijonge.

2. Abavavanyi bobunzima beBrinell bohlobo lwesando bangasetyenziswa kwiindawo zokusebenza ezinkulu ezingenakufakelwa kwiindawo zokuvavanya ibhentshi, nto leyo evumela ukuhlolwa ngokukhawuleza kwendawo ngaphandle kokusika iisampulu.

Kucetyiswa ukuba uvavanyo lwakho lweBrinell lube yi-SCP-1P hardness tester. Cofa apha ngezantsi ukuze uyijonge.

3.Izixhobo zokuvavanya ubulukhuni beRockwell zisetyenziswa kwiindawo ezicinyiweyo. Ezi zixhobo zokusebenza ezicinyiweyo zinobulukhuni obuphezulu kunye nokuqhekeka okuphezulu. I-Rockwell diamond cone indenter inokumelana namandla ovavanyo oluphezulu kwaye ilinganise ngokulula ububanzi bobulukhuni obuphezulu. Ukuxinana kwayo okuncinci akuyi konakalisa iindawo ezigqityiweyo kakuhle. Ibandakanya uvavanyo olukhawulezayo kunye nokufundwa ngokuthe ngqo, ifanelekile ukuhlolwa ngobuninzi kweemveliso ezigqityiweyo kubandakanya imingxunya, iimold kunye neegiya. Ixhotyiswe ngetafile yokusebenza yohlobo lwe-V, ingazibamba ngokuzinzileyo izinto zokusebenza zebha ezijikelezileyo.

Kucetyiswa uvavanyo lokuqina kweRockwell lwe-HRS-150S. Cofa ngezantsi ukuze uyijonge.

4.Abavavanyi bokuqina beVickers kufuneka basetyenziswe kwiindawo ezifakwe i-carburing kunye neendawo zokusebenza ezineeleya ezibhityileyo eziqinileyo. Ii-workpieces ezifakwe i-carburing kunye ne-nitrided zinomgangatho obhityileyo oqinileyo kunye ne-substrate ethambileyo ngaphantsi. Abavavanyi beVickers baxhasa amandla amancinci ovavanyo kwaye bavelisa ukuxinana okunzulu kakhulu okusebenza kuphela kumphezulu oqinisiweyo ngaphandle kokungena kwi-substrate. Oku kuvumela ukulinganiswa ngokuchanekileyo kobunzima bokwenyani bomphezulu.

Isivavanyeli sobulukhuni be-HVS-50A Vickerskuyacetyiswa kuvavanyo lwakho lweRockwell. Cofa apha ngezantsi ukuze uyijonge.

Ezi zingentla zizikhokelo nje eziqhelekileyo zokukhetha umvavanyi wobunzima. Iimeko zovavanyo zokwenyani ziyinkimbinkimbi, kwaye ukhetho lwezixhobo luchaphazeleka bubungakanani bezinto zokusebenza, ubukhulu beleya eqinileyo, kunye nemeko yomatshini wokugaya. Ukhetho lokugqibela luya kugqitywa ngokusekwe kwimeko yokwenyani yezinto zokusebenza. Ukuba uhlangabezana nobunzima ekukhetheni imodeli, zive ukhululekile ukuqhagamshelana nathi.Laizhou LaihuaSibonelela ngezisombululo zezixhobo zovavanyo lobulukhuni ezenzelwe wena umntu ngamnye.