Qhov zoo ntawm ntau yam khoom ntawm cov rooj tog, tsheb, kev tsim kho kev lag luam thiab lwm yam kev lag luam ncaj qha nyob ntawm qhov muaj zog thiab zoo fastening ntawm tus kheej qhov chaw ntawm cov qauv. Lub countersunk taub hau kho ntsia liaj qhov rooj yog ib qho ntawm cov khoom siv thoob ntiaj teb uas ruaj ntseg txuas ntau yam hauv ib yam khoom.
Bolt Appears
Nyob rau hauv Russia thaum ub, bolts tau hu ua arrowheads rau crossbow xub, muaj ntau yam duab. Tom qab ntawd, txhua yam khoom elongated ntawm ib lub cylindrical zoo pib hu ua li no. Thiab tsuas yog nrog kev txhim kho ntawm lub tsev thev naus laus zis, cov ntsia hlau txuas ntawm qhov chaw hloov tag nrho lwm cov ntsiab lus ntawm lo lus no.
Hnub no, threaded bolts tau siv ntau qhov chaw, ob qho tib si hauv lub neej txhua hnub thiab kev tsim khoom lag luam.
Kev piav qhia ntawm lub taub hau ntsia liaj qhov rooj
Lub fastener no tau txais nws lub npe rau lub ntsej muag peculiar ntawm lub taub hau. Smooth pas nrig nrog threaded ntsia hlaucov xov yog crowned nrog lub tiaj tus lub khob hliav qab lub kaus mom nrog ib lub qhov - ib tug turnkey recess los yog ib tug ntswj ntsia hlau.
Lub taub hau taub hau taub hau nkag mus rau tag nrho lub qhov ntawm cov khoom fastened. Lub taub hau nkag mus rau hauv cov khoom tsis muaj protruding los ntawm nws nto. Ntau qhov ntau thiab tsawg ntawm countersunk bolts, lawv qhov yooj yim ntawm kev siv, lub zog ntawm kev sib txuas thiab muaj peev xwm tiv taus cov khoom hnyav heev nthuav dav lawv cov peev txheej.
Kev faib cov bolt fasteners
Xov suab thiab qhov tob, ntsia hlau ntev, taub hau txoj kab uas hla thiab ntau lwm yam ntxwv yog txiav txim los ntawm GOST. Countersunk taub hau bolts tau muab faib raws li lawv lub hom phiaj ua ob peb pawg:
- Cov khoom siv ntawm cov tshuab ua liaj ua teb tau kho nrog ploughshare countersunk bolts.
- Rooj tog fasteners yog siv rau hauv kev tsim kho thiab rooj tog kev lag luam.
- Txoj kev tsheb ciav hlau txuas cov hlau txoj kev thaiv thiab cov qauv tshwj xeeb.
- Engineering yog siv los txuas cov khoom hauv lub tsheb, tshuab thiab ntsuas ntsuas.
Cov qib tsim nyog ntawm cov hlau tsis sib xws lossis alloyed carbon steel thiab cov tshuab tsim khoom txiav txim siab lub zog ntawm fasteners, qhia nyob rau hauv nominal tensile lub zog thiab tawm los lub zog. Raws li lub zog txhua yam, countersunk taub hau bolts tau muab faib ua 11 chav kawm. Cov cim lub zog yog siv rau lub kaus mom thiab zoo li ob tus lej nrog ib qho chaw nruab nrab ntawm lawv (piv txwv li, 3.6 lossis 12.9). Uniform labeling simplifieskev siv cov ntsia hlau zoo sib xws hauv ntau qhov kev lag luam. Thaum xam cov load ntawm lub fastener, ua ntej ntawm tag nrho cov, cov ntsiab lus tawm los yog coj mus rau hauv tus account, vim hais tias nws yog tshaj, irreversible deformations tshwm sim thiab siv xws li ib tug ntsia liaj qhov rooj nrog ib tug countersunk taub hau yog txwv tsis pub.
Steels thiab Alloys
Feem ntau yog siv rau kev tsim cov bolts, cov pa roj carbon tsawg yog siv, nrog cov ntsiab lus tsis pub ntau tshaj 0.4% carbon. Kev kho cua sov tom qab los tiv thaiv decarburization ntawm fasteners, txias lossis kub txheej txheem thiab cov txheej txheem tiv thaiv tuaj yeem siv kom tau txais cov khoom ntawm ntau chav kawm muaj zog.
Dhau li ntawm cov hlau, bolts yog tsim los ntawm lwm cov alloys:
- Alloyed steel qib tau txais los ntawm kev ntxiv nitrogen, chromium, npib tsib xee, vanadium, tooj liab thiab lwm yam khoom ntxiv uas txhim kho lub zog thiab corrosion tsis kam ntawm cov khoom. Raws li qhov xav tau ntawm lub cev lossis cov khoom siv kho tshuab, tus nqi ntawm cov khoom sib ntxiv sib txawv.
- Cold-resistant steels withstand kub mus txog -75 0 C.
- Stainless hlau tiv taus corrosion hauv huab cua lossis ib puag ncig hnyav vim muaj cov ntsiab lus siab ntawm chromium hauv nws cov muaj pes tsawg leeg.
- Heat-resistant (scaling-resistant, heat-resistant) steel tsis vau nyob rau hauv cov pa ib puag ncig ntawm qhov kub siab tshaj +550 0 C. Nickel, chromium, molybdenum, titanium thiab silicon yog siv los ua additives.
- Kub-resistant alloys withstand kub ntev ntev yam tsis deforming los yog tawg. Cov alloying ntxiv ntawm cov cua sov-resistant steels yog chromium thiabsilicon.
Tsis tshua muaj cov hlau tsis tshua muaj hlau siv rau kev tsim cov ntswj ntswj: titanium, tooj dag, tooj liab, txhuas thiab polymers. High-strength carbon alloys muaj ib tug tsawg ntawm corrosion kuj. Yog tias tsim nyog kom tau txais cov fasteners ntawm lub zog siab thiab tiv taus qhov hnyav, cov khoom tiav yog coated nrog cov hlau tiv thaiv, inorganic, enamel lossis yas txheej siv cov txheej txheem electrolytic lossis galvanic.
Yuav ua li cas countersunk bolts tau ruaj ntseg
Txhawm rau siv qhov sib txuas bolted, nws yog ib qho tsim nyog los npaj cov thev naus laus zis qhov. Txij li thaum lub ntsia liaj qhov rooj qhov txawv feature yog hais tias nws tsis muaj ib tug taw tes, nws yuav tsis ntsia hlau rau hauv cov khoom. Thaum fastening qhov chaw los ntawm, ib lub qhov yog drilled yam tsis muaj ib tug xov li ze li sai tau rau qhov luaj li cas ntawm lub ntsia liaj qhov rooj. Lub fastening yog nruj nrog ib tug txiv ntseej. Lub fixation ntawm lub ntsia liaj qhov rooj nyob rau hauv cov khoom yog muab los ntawm ib tug internal thread. Lub qhov ntsug yog drilled 0.1-0.2 hli me dua lub ntsia liaj qhov rooj txoj kab uas hla thiab 1 hli luv. Ib tug xov yog txiav nrog ib tug tes kais thiab ib tug ntsia liaj qhov rooj yog screwed rau hauv. Lub taub hau countersunk tau nruj kom txog thaum nws nres, yaug nrog qhov chaw ntawm cov khoom.
Ntawm lub tiaj tiaj ntawm lub taub hau, lub qhov tuaj yeem ua tau nyob rau hauv daim ntawv ntawm tus ntoo khaub lig, ib lub qhov ncaj los yog hexagonal so. Nyob ntawm qhov zoo ntawm lub rub lub qhov, siv lub tiaj tus los yog Phillips ntsia hlau los yog tus yuam sij hex.
Hex slot
Qhov siv dav tshaj plaws hauv txhua daim ntawv thov kev lag luam yog countersunk taub hau hexagon bolts. Ceev thiab yooj yimkev teeb tsa nrog lub cuab yeej hluav taws xob lossis pneumatic muab lub zog muaj zog ntawm threaded fastening ntawm qhov chaw. Conveyor los ua ke ntawm lub zog siab zog, cov khoom siv thiab cov khoom sib dhos yog nqa tawm nrog hexagon countersunk taub hau bolts.
Tshwj xeeb L-shaped hex wrenches yog compact thiab yooj yim rau siv. Qhov ntev thiab lub zog siab ntawm hexagons tso cai rau koj kom nruj nruj cov bolts thiab, yog tias tsim nyog, yooj yim dismantle qhov txuas txuas.
txiaj ntsig ntawm kev sib txuas bolted
- Kev ntseeg tau ntawm kev nrawm yog muab los ntawm kev kos duab metric thiab universal profile. Cov chav kawm zoo xaiv lub zog ntawm lub qhov rooj xauv ntsia liaj qhov rooj thiab nws cov kev ua haujlwm zoo nruj muab kev tiv thaiv kev ruaj ntseg ntawm cov khoom tiv thaiv tus kheej xoob thiab lav lub peev xwm siab.
- Ua los ntawm cov qib hlau tsim nyog, cov bolts tiv taus axial thiab lateral loads.
- Nrog kev pab los ntawm countersunk bolts, kev teeb tsa ntawm txhua tus qauv yog sai dua thiab yooj yim dua.
- Tus nqi ntawm kev sib dhos ua haujlwm yog qis dua tus nqi ntawm, piv txwv li, vuam. Ntau lub tsev tsim los yog cov khoom siv tsheb niaj hnub no tau txuas nrog cov bolts countersunk, vim tias cov haujlwm no yuav tsum tau siv sijhawm tsawg thiab lub cev muaj zog.
Hauv kev lag luam engineering thiab tsheb, lub taub hau taub hau nrog lub hwj txwv rau sab nraub qaum yog siv los tiv thaiv untwisting. Daim duab peb sab protrusion muab kev kho kom ruaj khov ntawm cov ntsia liaj qhov rooj hauv cov khoom. Feem ntau, lub ntsia liaj qhov rooj nrog lub hwj txwv yog siv los ntawm kev sib txuas ntawm qhov chaw thiab ua haujlwm raws li tus nres thaum tuav cov txiv ntoo.
Daim ntawv thov thaj chaw rau kev sib txuas zais zais
Countersunk taub hau bolts yog siv dav hauv txhua qhov kev lag luam thiab hauv lub neej txhua hnub. Kev sib txuas meej thiab ruaj khov ntawm cov khoom siv hauv kev ntsuas, kev vibration-resistant fastening ntawm lub tsheb thiab dav hlau qhov chaw, txhim khu kev qha screeding hlau thav duab ntawm cov khoom nyob rau hauv kev tsim kho, rooj tog sib dhos, lub tsev kho kom zoo nkauj thiab ntau lwm yam kev sib txuas yog muab nrog countersunk bolts. Ua los ntawm cov khoom siv ruaj khov thiab tiv taus qhov hnyav ib puag ncig steel alloys, zais fasteners tsis tsuas yog muab kev sib txuas txhim khu kev qha, lawv nyiam nrog kev yooj yim thiab zoo nkauj tsos.
Flush lub taub hau recessed rau hauv cov khoom tsis cuam tshuam nrog lub txav ntawm ntau yam mechanisms. Cov rooj tog lossis cov khoom siv kho kom zoo nkauj sab hauv sib sau ua ke nrog cov fasteners zais tsis muaj lub taub hau ntsia hlau muaj qhov zoo nkauj heev.
