Faham habka mashiinka qarxinta ciidda dareenka caadiga ah hawlgalka ku habboon (Ⅲ)

Cadaadiska cadaadiska iyo xoojinta dusha sare

Ku garaacida dusha sare ee workpiece shot ciid, stress waa la baabi'iyaa iyo xoogga dusha workpiece waa la kordhiyo, sida daaweynta dusha shaqada workpiece sida ilo, machining qalabka iyo daab diyaaradaha.

Darajada nadiifinta mashiinka qarxinta ciidda

Waxaa jira laba heer oo caalami ah oo ka wakiil ah nadaafadda: mid waa "SSPC-" ee uu aasaasay Maraykanku 1985; Midda labaad waa “Sa-” oo ay Iswiidhan samaysay 76, kaas oo loo qaybiyay afar fasal oo kala ah Sa1, Sa2, Sa2.5 iyo Sa3, waana halbeegga caalamiga ah ee caadiga ah. Faahfaahinta waa sida soo socota:

Sa1 - oo u dhiganta US SSPC - SP7. Isticmaalka buraashka buug-gacmeedka guud ee fudud, habka wax lagu shiido maro emery, tani waa afarta nooc ee nadaafaddu waa mid dhexdhexaad ah, ilaalinta dahaarka ayaa ka yara fiican oo keliya workpiece iyada oo aan la farsameyn. Heerka farsamada ee daaweynta heerka Sa1: dusha sare ee workpiece waa inaysan noqon saliid muuqata, dufan, oxide haraaga, miridhku, rinjiga hadhaaga ah iyo wasakh kale. Sa1 waxa kale oo loo yaqaan nadiifinta burushka gacanta. (ama fasalka nadiifinta)

Heerka Sa2 - oo u dhiganta US SSPC - heerka SP6. Isticmaalka habka nadiifinta ciidda, kaas oo ah kan ugu hooseeya ee daawaynta ciidda, taas oo ah, shuruudaha guud, laakiin ilaalinta dahaarka marka loo eego nadiifinta burushka buug-gacmeedka si loo hagaajiyo qaar badan. Heerka farsamada ee daawaynta Sa2: dusha workpiece waa inay xor ka ahaadaan dufan, wasakh, oksaydh, miridhku, rinji, oksaydh, daxal, iyo walxaha kale ee ajnabiga ah (marka laga reebo cilladaha), laakiin cilladuhu waa inaanay ka badnaan 33% dusha labajibbaaran mitir, oo ay ku jiraan hooska yar; Qadar yar oo midab yar ah oo ay keento cillado ama miridhku; Maqaarka oxide iyo cilladaha rinjiga. Haddii uu jiro dalool dusha asalka ah ee qaybta shaqada, miridh yar iyo rinji ayaa ku sii jiraya xagga hoose ee ilkeed. Darajada Sa2 waxa kale oo loo yaqaan darajada nadiifinta alaabta (ama fasalka warshadaha).

Sa2.5 - tani waa heerka inta badan loo isticmaalo warshadaha waxaana loo aqbali karaa shuruud farsamo iyo heer. Sa2.5 waxa kale oo loo yaqaan meel u dhow Nadiifinta Caddaan (u dhow cad ama ka baxsan). Heerka farsamada Sa2.5: waxay la mid tahay qaybta hore ee Sa2, laakiin cilladdu waxay ku kooban tahay wax aan ka badnayn 5% dusha sare ee mitir labajibbaaran, oo ay ku jiraan hooska yar; Qadar yar oo midab yar ah oo ay keento cillado ama miridhku; Maqaarka oxide iyo cilladaha rinjiga.

Fasalka Sa3 - U dhiganta US SSPC - SP5, waa fasalka daawaynta sare ee warshadaha, oo sidoo kale loo yaqaan Fasalka Nadiifinta cad (ama fasalka cad). Heerka farsamaynta heerka Sa3 heerka farsamada: la mid ah heerka Sa2.5, laakiin 5% hooska, cilladaha, miridhku iyo wixii la mid ah waa inay jiraan.