Thaum tus kheej tapping screws yog siv rau lub workpiece rau anti-corrosion txheej, tuab ntawm lub txheej yog inevitably tsis ncaj ncees. Qhov no muaj feem xyuam rau qhov loj ntawm txoj haujlwm thiab qhov txheej txheem. Uneven thickness yuav cuam tshuam rau antiseptic muaj nuj nqi ntawm lub workpiece nyob rau hauv cov tshuaj ntxuav ntsev. Hauv qhov teeb meem no, nyob ntawm seb hom khij nyhiab thiab cov duab ntawm lub khawm, nws txoj kev ua los tiv thaiv kev kub ntxhov yog qhov cuam tshuam loj heev los ntawm tus qauv ntawm tus kheej tapping screws. Nws yog feem ntau impractical rau insist on ntsev tshuaj tsuag sim ua ntej tus me nyuam vim lub sij hawm sim ntau zaus ntau tshaj li ob peb teev. Vim li no, qhov yuav tsum tau siv cov sij hawm tsim nyog ntawm kev tswj cov khoom tsim los tswj kom tiv thaiv kev tiv thaiv. Nws tseem tsis tau mus muab qhov kwv yees ntawm qhov ppm nqi ntawm qhov zoo ntawm qhov kev ua no. Qhov no kuj siv rau qhov teeb meem uas cov fasteners muaj lubricated kom tau raws li kev coefficient ntawm kev sib txhuam. Kev saib xyuas cov cai zoo (piv txwv li, μtot = 0.08 mus rau 0.14) tsuas yog siv tau los ntawm kev siv cov kev tswj cov khoom siv los tswj cov khoom tsim nyog, thiab pom tau los ntawm kev ntsuam xyuas random. Cov piv txwv no qhia txog kev sib raug zoo ntawm cov tuam ntxhab, cov lag luam, thiab cov neeg siv.
Tapping self-tapping los hloov lub ntim teeb meem
Kev kho dua tuaj yeem ua rau muaj kev pheej hmoo ntawm kev sib tov nyob rau lwm yam khoom lossis lwm yam thiab ua rau kev ua kom raug mob.
Lub hauv paus ntawm non-conformities thiab txoj kev ua tau raws li tus nqi ntawm cov kev cai ntawm ppm
Muaj peb qhov chaw ntawm kev tswj yus tus kheej ntawm tus kheej tapping:
- Fasteners nrog cov yam ntxwv tsis zoo;
- Nws muaj lwm yam khoom los sis lwm yam khoom siv (tsis yog tib lub sib tw);
- Mixed non-fasteners (nws yog xim hlau lossis tsis yog xim hlau)