
Tataiso ena e fana ka kakaretso e felletseng ea ntho e 'ngoe le e' ngoe eo u hlokang ho e tseba mabapi le ho reka likhoele tsa screw, tse koahelang mefuta e fapaneng, lisebelisoa, lits'ebetso, le menahano ea ho etsa liqeto tse nepahetseng tsa ho reka. Re tla hlahloba liprofaele tse fapaneng tsa likhoele, boholo, le lisebelisoa, ho u thusa ho khetha tse nepahetseng khoele ea sekoti bakeng sa litlhoko tsa hau tse khethehileng. Ithute mokhoa oa ho hlakisa litlhoko tsa hau le ho fumana barekisi ba tšepahalang ho netefatsa hore o fumana boleng bo holimo khoele ea sekoti lihlahisoa.
Likhoele tsa metric ke mofuta o atileng haholo lefatšeng ka bophara, o hlalosoang ka bophara le bophahamo ba ona (sebaka se pakeng tsa likhoele). Li sebelisoa haholo lits'ebetsong tse fapaneng ka lebaka la moralo oa tsona o tloaelehileng le boiketlo ba tšebeliso. Ha u reka metric khoele ea sekoti li-fasteners, etsa bonnete ba hore u bolela bophara, bophahamo le bolelele ka nepo. Barekisi ba bangata, joalo ka bao u ka ba fumanang ho bona Hebei Muyi Import&Export Trading Co.,Ltd, ba tla khona ho thusa.
Likhoele tsa lisenthimithara, tse atileng Amerika Leboea le libakeng tse ling, li ipapisitse le mokhoa oa ho metha oa inch. Ho na le litekanyetso tse 'maloa, ho kenyelletsa le Unified National Coarse (UNC), Unified National Fine (UNF), le tse ling. Ho khetholla se nepahetseng khoele ea sekoti mofuta ka har'a sistimi ena ke oa bohlokoa bakeng sa ho lekana le ts'ebetso e nepahetseng. Litlhaloso tse nepahetseng li bohlokoa, haholo ha ho nahanoa ka litekanyo tse thehiloeng ho inch.
Ka ntle ho likhoele tsa metric le inch, mefuta e ikhethileng e teng bakeng sa lits'ebetso tse ikhethileng. Tsena li kenyelletsa likhoele tsa trapezoidal (tse sebelisoang bakeng sa phetisetso ea matla), likhoele tsa buttress (bakeng sa lits'ebetso tse matla haholo), le likhoele tsa sawtooth (bakeng sa mekhoa ea ho notlela). Khetho e tla itšetleha haholo ka litlhoko le litlhoko tsa morero.
Thepa ea hau khoele ea sekoti e ama matla a eona haholo, ho tšoarella ha eona, le ho hanyetsa kutu. Lisebelisoa tse tloaelehileng li kenyelletsa:
| Lintho tse bonahalang | Thepa | Lisebelisoa |
|---|---|---|
| Tšepe | Matla a phahameng, ho tšoarella hantle | Morero o akaretsang, likopo tse matla haholo |
| Tšepe e Hloekileng | E thibela ho bola, e matla haholo | Tšebeliso ea kantle, tikoloho ea leoatle |
| Koporo | Corrosion resistivity, conductivity e ntle ea motlakase | Lisebelisoa tsa motlakase, lipeipi tsa metsi |
| Aluminium | E bobebe, e thibela ho bola | Aerospace, lisebelisoa tsa likoloi |
Ho fumana boleng ba boleng bo holimo khoele ea sekoti lihlahisoa ke tsa bohlokoa. Nahana ka lintlha tse kang botumo ba barekisi, setifikeiti (ka mohlala, ISO 9001), le bokhoni ba bona ba ho fihlela litlhoko tsa hau tse ikhethileng. Limmaraka tsa Marang-rang le barekisi ba khethehileng ba indasteri e ka ba lisebelisoa tse ntle haholo. Se ke oa tsilatsila ho bapisa litheko le litlhaloso ho tsoa ho barekisi ba bangata pele u reka. Hopola ho hlahloba lintlha ka hloko le ho netefatsa hore li lumellana le litlhoko tsa hau hantle. Bakeng sa mefuta e mengata e fapaneng ea likhetho, hlahloba lethathamo le pharaletseng le fumanehang ho barekisi ba tsebahalang.
P: Phapano ke efe lipakeng tsa likhoele tsa UNC le UNF?
A: Likhoele tsa UNC (Unified National Coarse) li na le molumo o moholo ho feta likhoele tsa UNF (Unified National Fine) tsa bophara bo lekanang. UNC e fana ka matla a maholo bakeng sa thepa e teteaneng, athe UNF e fana ka litokiso tse ntle 'me e loketse lisebelisoa tse tšesaane. Khetho e itšetlehile ka litlhoko tse khethehileng tsa kopo.
P: Ke tseba joang boholo bo nepahetseng bakeng sa ka khoele ea sekoti?
A: Lekanya tse teng ka nepo khoele ea sekoti bophara le sekontiri. Haeba u sa tiisehe, sheba bukana ea tataiso kapa u batle thuso ho setsebi sa hardware kapa mofani oa thepa.
Tataiso ena e fana ka motheo oa ho utloisisa le ho khetha se nepahetseng likhoele tsa screw. Hopola ho beha pele boleng le ho nepahala ha lintlha tsa hau ho netefatsa projeke e atlehileng.
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