Ke tšepe ea mofuta ofe le tšepe e loketseng li-screw tsa 'nete tsa grade 12.9 hex

Sehlopha sa 12.9 liboutu le likurufubua ka li-screws tse matla tse phahameng tse entsoeng ka 35CrMo, 42CrMo, le lisebelisoa tsa tšepe tsa motsoako oa B7, tse nang le matla a fokolang a 1220Mpa le boima ba 39-44HRC. E sebelisoa haholo indastering ea masela, hydraulic, molding ea ente le mechini ea lapeng.

1. Sekurufu sa grade 12.9 se bua ka screw ea matla e phahameng haholo e entsoeng ka thepa ea tšepe ea SCM435 alloy, e nang le matla a fokolang a 1220Mpa le boima ba 39-44HRC. E sebelisoa haholo indastering ea masela, hydraulic, molding ea ente le mechini ea lapeng.

2. Ho ea ka ntlha, e ka aroloa ka mefuta e sa tšoaneng e kang12.9 liboutu tsa kantle tsa hexagonal, sehlopha sa 12,9li-screw tse ka hare tsa hlooho tsa hexagonal(senoelo hlooho), 10.9 sehlopheng countersunk hlooho ka hare hexagonal screws (senoelo se bataletseng), 10,9 sehlopha sa semi chitja hlooho ka hare hexagonal screws (chitja sekomiki), 12,9 sehlopheng sete screws (mochine mitha), 12.9 sehlopheng ka hare hexagonal plug screws, joalo-joalo Ho ea ka khoele, e arotsoe ka khoele e ntle ea Amerika, metric, joalo-joalo.

3. Kereiti ea 12.9 ke mefuta e mengata e holimo ea li-screw, tse nang le boima bo phahameng le matla a tsitsitseng. Rockwell ea eona e thata (HRC) e ka fihla ho 39-44, 'me matla a eona a thata a ka fihla ho 1220N / mm2. Leha ho le joalo, ka lebaka la libopeho tse fapaneng tsa tlhahiso ea li-screw, li-screw hex screws (likopi tse bataletseng) le li-sccrews tse nang le lihlooho tse halofo tsa hex (likopi tse chitja) tse hlahisoang ka thepa e tšoanang li ka fihlela matla a fokolang a grade 10.9. E ka boela ea kopana ka botlalo le litlhoko tse phahameng tsa likhoebo tsa indasteri le tsa merafo bakeng sa li-fasteners liketsahalong tse khethehileng le likarolo.

Ningbo Zhongli bolts industrial co.ltd e fana feela ka sehlopha sa 'nete sa 12.9Hex socket screws DIN912ISO4762, feme e na le boiphihlelo ba lilemo tse 21 ba tlhahiso.