Matanho ekudzivirira kutyoka kwezvikushi zvekuzviboorera
Kutyoka kwechivharo chakatyoka, muswe wakatyoka, tsvimbo yakatyoka, zvinowanzoitika mu screw ye martensitic carbon steel self drilling, martensitic carbon steel self drilling screw kuburikidza nekuoma kwe carbonitriding pamusoro pekupisa kwakanyanya kusvika ≥560HV, nekupinza kwakasimba, asi zvakare kwakawedzera brittleness ye screw. Kana screw ye self drilling iine mutoro wakawandisa, torque yakawandisa, vibration iri nyore inoitika. Kana screw ye self drilling ikatyoka, hazvizongokanganisi kufambira mberi kwekuvaka, kwete kunaka, asiwo zvinounza njodzi dzakawanda dzekuchengetedza. Pane zvinhu zvinotevera zvinodzivirira breakage ye screw ye drilling:
1: Sarudza chigadzirwa chakakodzera
a: Usati washandisa, simbisa kana hunhu hwemuchina hwechigadzirwa huchikwanisa kuzadzisa zvinodiwa zvekushandisa
b: Sarudzo ine musoro yehukuru hwesikuruu nehurefu
C: Zvinokurudzirwa kushandisa mushonga wehalf tooth kana double tooth munzvimbo ine layer
2: Shandisa nhamba yacho
A: Shandisa screws 4-6 pa square mita
B: Huwandu hwedenga nepuratifomu inorema hunofanira kuwedzerwa nemazvo
C: Nzvimbo yemhepo yakakura zvakakodzera kuwedzera chiyero
3: Nzira yekushandisa nemazvo
A: Bata tambo yakatwasuka kusvika padivi peshinda, usatsveyama
B: Mukuita kwekusunga, simba rinofanira kunge rakafanana, uye simba rekusunga harifanirwe kudarika simba rekuchengetedza
C: 12#, 14# zvigadzirwa zvemhando yepamusoro, kumhanya kwechibooreso chemagetsi 1000-1800 revolution hakugone kukurumidza zvakanyanya
4: Torque yekukundikana (pasi pedata chete) chikamu:Nm
| tsanangudzo | Paradza torque min |
| 4# | 1.5 |
| 6# | 2.8 |
| 8# | 4.7 |
| 10# | 6.9 |
| 12# | 10.4 |
| 14# | 16.9 |