Countersunk Head Phillips Self Drilling Screws

Ho na le mefuta e mengata ea li-screws tse nang le mapheo tsa ho itšeha, empa kaofela li na le litšobotsi tse tšoanang. Ho na le litšobotsi tse hlano tse ka sehloohong. Lisebelisoa tse latelang li qaqisa lintlha tse hlano tsa li-screw tse nang le mapheo:

1. Hangata e entsoe ka tšepe ea carburized (99% ea lihlahisoa tsohle). E ka boela ea sebelisoa ka tšepe e sa hloekang kapa litšepe tse se nang ferrous.

2. Li-screws tsa ho itšeha tse nang le mapheo li tlameha ho phekoloa ka mocheso. Hardware e u joetsa hore li-screw tsa carbon steel self-tapping screws li tlameha ho etsoa carburized, 'me li-stainless steel self-tapping screws tse nang le lipekere tsa mapheo li tlameha ho ba tharollo e tiileng e thatafalitsoeng. E le ho etsa li-screws tsa ho iketsetsa li-screws li kopana le thepa ea mochine le ts'ebetso e hlokahalang ka mokhoa o tloaelehileng.

3. Lihlahisoa tse nang le mapheo a ho iketsetsa li-screw li na le boima bo phahameng ba holim'a metsi le boima bo botle ba mantlha. Ke hore, "bonolo ka hare mme bo matla kantle". Thepa ea thepa e u bolella hore ena ke tšobotsi e kholo ea litlhoko tsa ts'ebetso ea ho itšeha lipekere tsa mapheo. Haeba boima ba bokaholimo bo le tlase, bo ke ke ba phunyeletsoa ka har'a matrix; haeba mokokotlo o e-na le boima bo fokolang, o tla robeha hang ha o phunyeletsoa 'me o ke ke oa sebelisoa. Ka hona, "bonolo ka hare le bo thata ka ntle" ke li-screws tsa ho itšeha tse nang le lipekere tsa mapheo ho finyella litlhoko tsa ts'ebetso.

4. Sebaka sa Best Self Drilling Screw With Wings lihlahisoa se hloka phekolo ea tšireletso ea holim'a metsi, hangata phekolo ea electroplating. Lisebelisoa li u bolella hore bokaholimo ba lihlahisoa tse ling bo hloka ho phekoloa ka phosphate (phosphating). Mohlala: Likurufu tsa ho ithupa tse nang le lipekere tse mapheo holim'a mabota hangata li na le phosphated