Kev tiv thaiv kom tsis txhob tawg cov ntsia hlau uas tau khawb rau tus kheej
Qhov tawg rau lub hau tawg, tus tw tawg, thiab tus pas tawg feem ntau tshwm sim hauv cov hlau martensitic carbon steel self drilling screw, martensitic carbon steel self drilling screw los ntawm qhov kub siab carbonitriding nto hardness ncav cuag ≥560HV, nrog rau kev nkag mus zoo, tab sis kuj ua rau lub hau brittleness nce ntxiv. Thaum lub hau self drilling nyob rau hauv cov ntaub ntawv ntawm kev thauj khoom ntau dhau, torque ntau dhau, yooj yim vibration yuav tshwm sim brittle fracture phenomenon. Thaum lub self drilling tawg, nws yuav tsis tsuas yog cuam tshuam rau kev nce qib ntawm kev tsim kho, tsis zoo nkauj, tab sis kuj coj ntau yam kev phom sij kev nyab xeeb. Muaj cov ntsiab lus tseem ceeb hauv qab no los tiv thaiv kev tawg ntawm lub hau drilling:
1: Xaiv cov khoom zoo
a: Ua ntej siv, xyuas kom meej tias cov khoom siv kho tshuab ntawm cov khoom puas tuaj yeem ua tau raws li qhov yuav tsum tau siv
b: Kev xaiv qhov loj thiab ntev ntawm cov ntsia hlau tsim nyog
C: Nws raug pom zoo kom siv cov khoom ib nrab hniav lossis ob lub hniav hauv ib puag ncig interlayer
2: Siv tus lej
A: Siv 4-6 lub ntsia hlau rau ib square meter
B: Tus naj npawb ntawm lub ru tsev thiab lub phaj hnyav yuav tsum tau nce ntxiv kom haum
C: Thaj chaw cua loj dua yog qhov tsim nyog nce ntxiv koob tshuaj
3: Siv txoj kev kom raug
A: Coj mus rhaub perpendicular rau lub axis ntawm cov xov, tsis txhob qaij
B: Hauv cov txheej txheem nruj, lub zog yuav tsum sib xws, thiab lub zog nruj yuav tsum tsis pub tshaj qhov kev nyab xeeb torque
C: 12 #, 14 # cov khoom tshwj xeeb, lub zog hluav taws xob 1000-1800 tig tsis tuaj yeem ceev dhau
4: Lub zog tsis ua haujlwm (hauv qab no cov ntaub ntawv rau kev siv xwb) chav tsev:Nm
| cov lus qhia tshwj xeeb | Ua kom lub zog torque min puas tsuaj |
| 4# | 1.5 |
| 6# | 2.8 |
| 8# | 4.7 |
| 10# | 6.9 |
| 12# | 10.4 |
| 14# | 16.9 |