Mfundo Yogwira Ntchito Yakupukuta Nkhungu Ndi Njira Yake.

Popanga nkhungu, gawo lopanga nkhungu nthawi zambiri limayenera kupukutidwa pamwamba.Kudziwa ukadaulo wopukutira kumatha kupititsa patsogolo moyo wabwino ndi ntchito ya nkhungu motero kumapangitsa kuti chinthucho chikhale chabwino.Nkhaniyi ifotokoza ndondomeko yogwirira ntchito ndi ndondomeko ya kupukuta nkhungu.

1. Njira yopukutira nkhungu ndi mfundo yogwirira ntchito

Kupukuta nkhungu nthawi zambiri kumagwiritsa ntchito miyala yamtengo wapatali, mawilo a ubweya, sandpaper, ndi zina zotero, kotero kuti pamwamba pa zinthuzo ndi pulasitiki yopunduka ndipo gawo lalikulu la pamwamba pa workpiece limachotsedwa kuti lipeze malo osalala, omwe nthawi zambiri amachitidwa ndi manja. .Njira yoperekera bwino kwambiri komanso kupukuta imafunika kuti ikhale yapamwamba kwambiri.Kupukuta ndi kupukuta kwapamwamba kwambiri kumapangidwa ndi chida chapadera chopera.Mumadzi opukuta omwe ali ndi abrasive, amapanikizidwa ndi makina opangidwa ndi makina kuti azitha kuyenda mothamanga kwambiri.Kupukuta kumatha kukwaniritsa makulidwe apamwamba a Ra0.008μm.

2. Njira yopukutira

(1) kupukuta mwaukali

Makina abwino, EDM, akupera, etc. akhoza kupukutidwa ndi opukuta pamwamba pa 35 000 mpaka 40 000 r / min.Kenako pali kugaya mafuta mwala pamanja, chingwe cha mwala wamafuta kuphatikiza palafini ngati mafuta opaka kapena ozizira.Dongosolo la ntchito ndi 180#→240#→320#→400#→600#→800#→1 000#.

(2) Kupukuta pang’ono

Semi-finishing makamaka amagwiritsa ntchito sandpaper ndi palafini.Nambala ya sandpaper ili motere:

400#→600#→800#→1000#→1200#→1500#.M'malo mwake, #1500 sandpaper imangogwiritsa ntchito chitsulo cha nkhungu choyenera kuuma (pamwamba pa 52HRC), ndipo sichoyenera chitsulo chowumitsidwa chisanayambe, chifukwa chikhoza kuwononga pamwamba pa chitsulo chowumitsidwa kale ndipo sichingakwaniritse zomwe mukufuna kupukuta.

(3) Kupukuta bwino

Kupukuta bwino kumagwiritsa ntchito phala la diamondi.Ngati akupera ndi gudumu kupukuta nsalu kusakaniza diamondi abrasive ufa kapena abrasive phala, mwachizolowezi akupera dongosolo ndi 9 μm (1 800 #) → 6 μm (3 000 #) → 3 μm (8 000 #).Phula la diamondi la 9 μm ndi gudumu la nsalu lopukuta lingagwiritsidwe ntchito kuchotsa zizindikiro za tsitsi ku 1 200 # ndi 1 50 0 # sandpaper.Kupukuta kumachitidwa ndi phala ndi diamondi mu dongosolo la 1 μm (14 000 #) → 1/2 μm (60 000 #) → 1/4 μm (100 000 #).

(4) Malo ogwirira ntchito opukutidwa

The kupukuta ndondomeko ayenera kuchitidwa payokha pa awiri ntchito malo, ndiko kuti, akhakula akupera processing malo ndi chabwino kupukuta processing malo olekanitsidwa, ndi chisamaliro ayenera kumwedwa kuyeretsa mchenga particles otsala pamwamba pa workpiece m'mbuyomu. ndondomeko.

Nthawi zambiri, pambuyo kupukuta akhakula ndi mafuta mwala kuti 1200 # sandpaper, workpiece ayenera opukutidwa kuyeretsa popanda fumbi, kuonetsetsa kuti palibe fumbi particles mu mpweya kutsatira nkhungu pamwamba.Zofunikira zolondola pamwamba pa 1 μm (kuphatikiza 1 μm) zitha kuchitidwa muchipinda chopukutira choyera.Kuti mupukutire bwino kwambiri, iyenera kukhala pamalo aukhondo, chifukwa fumbi, utsi, dandruff ndi madontho amadzi amatha kutaya malo opukutidwa kwambiri.

Pambuyo kupukuta kumalizidwa, pamwamba pa workpiece iyenera kutetezedwa ku fumbi.Njira yopukutira ikayimitsidwa, ma abrasives ndi mafuta onse ayenera kuchotsedwa mosamala kuti awonetsetse kuti pamwamba pa chogwiriracho ndi choyera, ndiyeno wosanjikiza wa nkhungu anti- dzimbiri ❖ ayenera kupopera pamwamba pa workpiece.