Qonda inkqubo yomatshini wokuqhushumba kwesanti ingqiqo yokusebenza elula (Ⅲ)

Ukunciphisa uxinzelelo kunye nokomelezwa komphezulu

Ngokubetha umphezulu we-workpiece nge-sand shot, uxinzelelo luyasuswa kwaye amandla angaphezulu kwendawo yokusebenza ayanda, njengokunyangwa kwendawo yokusebenza efana nemithombo, izixhobo zomatshini kunye neentambo zeenqwelo-moya.

Ibakala lokucoca umatshini wokuqhunyiswa kwesanti

Kukho imigangatho emibini emele amazwe ngamazwe yococeko: enye yi "SSPC-" eyasekwa yi-United States ngo-1985; Okwesibini yi "Sa-" eyenziwe yiSweden kwi-76, eyahlulahlulwe ngamabakala amane, angala, Sa1, Sa2, Sa2.5 kunye neSa3, kwaye ngumgangatho oqhelekileyo wamazwe ngamazwe. Iinkcukacha zezi zilandelayo:

I-Sa1 - ilingana ne-US SSPC - SP7. Ukusebenzisa ibhrashi yezandla elula ngokubanzi, indlela yokugaya ilaphu le-emery, ezi ntlobo zine zococeko ziphantsi ngokuphakathi, ukhuseleko lokugquma lungcono kancinane kunomsebenzi ngaphandle kokucubungula. Umgangatho wobugcisa bonyango lwenqanaba le-Sa1: umphezulu we-workpiece akufanele ube yioli ebonakalayo, igrisi, i-oxide eseleyo, i-rust, ipeyinti eseleyo kunye nolunye ukungcola. I-Sa1 ikwabizwa ngokuba yi-Manual brush cleaning. (okanye iklasi yokucoca)

Inqanaba le-Sa2 - elilingana ne-US SSPC - inqanaba le-SP6. Ukusetyenziswa kwendlela yokucoca i-sandblasting, eyona nto iphantsi kunyango lwe-sandblasting, oko kukuthi, iimfuno eziqhelekileyo, kodwa ukukhuselwa kwengubo kunokucoca ibhulashi ye-manual ukuphucula ezininzi. Umgangatho wobugcisa bonyango lwe-Sa2: umgangatho womsebenzi awuyi kukhululeka kwigrisi, ukungcola, i-oxide, umhlwa, ipeyinti, i-oxide, i-corrosion, kunye nezinye izinto zangaphandle (ngaphandle kweziphene), kodwa iziphene aziyi kudlula i-33% yomhlaba kwisikwere ngasinye. imitha, kubandakanywa izithunzi ezincinci; Umlinganiselo omncinci wokutshintsha kwebala okubangelwa ziziphene okanye umhlwa; Ulusu lwe-oksidi kunye neziphene zepeyinti. Ukuba kukho i-dent kwindawo yokuqala ye-workpiece, i-rust encinci kunye nepeyinti iya kuhlala isezantsi kwe-dent. Ibakala le-Sa2 likwabizwa ngokuba libakala lokucoca imveliso (okanye ibakala loshishino).

I-Sa2.5 - eli lizinga eliqhelekileyo elisetyenziswa kwishishini kwaye linokwamkelwa njengemfuno yobugcisa kunye nomgangatho. I-Sa2.5 ikwabizwa ngokuba kufuphi nokucoca okuMhlophe (kufuphi nomhlophe okanye ngaphandle komhlophe). I-Sa2.5 umgangatho wobugcisa: iyafana nenxalenye yokuqala ye-Sa2, kodwa isiphene sinqunyelwe ukuba singabi ngaphezu kwe-5% yobuso kwimitha yesikwere, kubandakanywa nomthunzi omncinci; Umlinganiselo omncinci wokutshintsha kwebala okubangelwa ziziphene okanye umhlwa; Ulusu lwe-oksidi kunye neziphene zepeyinti.

I-Class Sa3 - Ilingana ne-US SSPC - SP5, iklasi yonyango ephezulu kwishishini, eyaziwa ngokuba yiKlasi yokuCoca emhlophe (okanye iklasi emhlophe). Inqanaba le-Sa3 lokuqhuba umgangatho wobugcisa: ngokufanayo nenqanaba le-Sa2.5, kodwa i-5% yesithunzi, iziphene, i-rust kunye nokunye kufuneka kube khona.