Litaba tsa indasteri

Cold forging, eo hape e tsejoang e le ho forging volume e batang, ke mokhoa oa ho etsa thepa hammoho le mokhoa oa ho lokisa. Ha e le hantle e ts'oanang le ts'ebetso ea setempe, mokhoa o batang oa ho forging o entsoe ka thepa, hlobo le lisebelisoa. Empa thepa ea ho sebetsa ka setempe ke haholo-holo poleiti, 'me thepa e sebelisoang ka mokhoa o batang ke terata ea disk. Japane (JIS) e bitsoang cold forging (cold forging), China (GB) e bitsoang cold heading, outside screw factory like to call head.

Tšepe sebopeho bolt ha e sebelisoa e tla ba e fapaneng ho ea ka matla a tšebeliso e fapaneng ea sebaka e boetse e fapane, kahoo ho ahlola kereiti ea matla joang? Mohaho oa tšepe oa liboutu kereiti ea matla: Matla a matla a bolt ea sebopeho sa tšepe bakeng sa khokahano ea sebopeho sa tšepe ke 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, joalo-joalo. linomoro, tseo ka ho latellana li emelang boleng ba matla a tensile le karo-karolelano ea flexion ea thepa ea bolt ea sebopeho sa tšepe.

Bakeng sa tlhahiso ea li-screw fasteners, kalafo ea holim'a metsi ke ts'ebetso e ke keng ea qojoa, barekisi ba bangata ba botsa ka li-screw fasteners, mokhoa oa ho phekola holim'a metsi, marang-rang a tloaelehileng ho ea ka boitsebiso bo akaretsang mabapi le holim'a li-screw fasteners tse tloaelehileng ho na le mefuta e robeli. ea mefuta e kang: e ntšo (e putsoa), phosphating, hot dip zinc, dacromet, galvanized galvanized, chrome plating, nickel le zinc impregnation. The fastener screw surface treatment ke ka mokhoa o itseng oa ho etsa lesela le koahelang holim'a sebaka sa mosebetsi, sepheo sa sona ke ho etsa hore bokaholimo ba sehlahisoa bo be ntle, bo khahlanong le kutu.