Screws thiab cov rau tes yog ob lub fasteners siv los ua kom nrawm dua ntau yam khoom ua ke. Txawm hais tias cov ntsia hlau muaj keeb kwm ntev nyob rau hauv keeb kwm, raws sijhawm thiab thev naus laus zis tau maj mam dhau los ua kev xaiv ntau dua. Kab lus no yuav tshawb txog cov txheej txheem keeb kwm ntawm cov ntsia hlau hloov ntsia hlau.
1. Lub hauv paus chiv keeb thiab kev txhim kho ntawm cov ntsia hlau
Kev tsim muaj ntawm cov ntsia hlau tuaj yeem taug qab mus rau lub sijhawm Roman thaum ub ntau dua 2, {1}} xyoo dhau los. Tom qab tib neeg mastered cov txuj ci ntawm casting cov kev sib nraus thiab cov hlau ua cov hlau pib ua kom dav siv hauv kev tsim kho thiab Woodworking. Tus thawj ntsia hlau tau los ntawm txhais tes, uas ua rau lawv kim thiab tsawg. Nws tsis yog mus txog rau 18th thiab thaum ntxov 19th pua xyoo ntawm cov ntsia hlau tau zoo heev thiab tus nqi tau txo nrog cov kev taw qhia ntawm kev tsim mechanized.
2. Kev tsim muaj thiab siv cov screws
The origin of screws can be traced back to 2000 BC, but nails with threads did not appear until thousands of years later. Thawj tus neeg los piav txog Spirals yog Greek cov kws tshawb fawb archimedes. Raws li cov ntaub ntawv, cov ntoo kws pom tias cov ntsia hlau yooj yim ua rau cov ntsia hlau, uas ua rau lawv nrhiav cov hau kev yooj yim dua. Nyob rau hauv lub xyoo pua 16, Ntsia thawv pib tsim cov ntsia hlau nrog muab kauv kab, thiab maj mam hloov kho mus rau hauv cov screats niaj hnub.
3. Luag muaj cov ntsia hlau
Xyoo 1797, Kws Tsim Lus Maudser Maudsley tsim lub tshuab dhos precision ntsia hlau tshuab ua los ntawm txhua tus hlau nyob rau London. Cov nram qab no xyoo, Wilkinson ua ib lub txiv ntoo thiab ntsia liaj qhov rooj raug hauv Tebchaws Meskas. Qhov tsim muaj ntawm ob lub tshuab ua tau ntau lawm cov ntsia hlau ntau dua thiab pheej yig, yog li txhawb cov screws. Thaum lub xyoo pua puv 19, nrog kev nrawm nrawm ntawm kev lag luam, cov screws tau nrov heev raws li kev kho kom zoo vim tias txoj kev lag luam tsis muaj peev xwm tau pom nyob rau lub sijhawm ntawd.
4. Qhov zoo ntawm screws
Piv nrog rau tes, screws muaj qhov tseem ceeb hauv qab no:
- Muaj zog ua kom nrawm nrawm: Screws tuaj yeem muab ntau dua cov zog ceev dua los ntawm kev hloov mus rau hauv cov khoom, tshwj xeeb tshaj yog nyob rau hauv cov khoom tawv thiab lwm yam khoom siv.
- Zoo dua stability: xov cov xov uas ua rau nws nyuaj rau kev txiav tawm tom qab zawm, muab cov khoom ruaj khov ntau dua.
- Yooj yim rau disassemble thiab rov siv dua tshiab disassembed nrog lub hau ntswj thiab tuaj yeem siv ntau zaus, thaum ntsia hlau nyuaj kom tshem tawm ib zaug lawv tau tsav mus rau hauv.
5. Niaj hnub nim thov ntawm screws
Nrog kev txhim kho kev txuas ntxiv ntawm cov thev naus laus zis, daim ntawv thov tau ntawm cov ntsia hlau kuj tseem nthuav dav. Los ntawm kev tsim kho, tshuab rau cov khoom siv hluav taws xob, screws yog yuav luag txhua qhov chaw. Tshwj xeeb tshaj yog nyob rau hauv cov sij hawm uas meej nruj thiab nquag disassembly thiab nquag disassembly thiab kev sib dhos ntawm cov ntsia hlau yog pom tseeb. Tsis tas li ntawd, screws ntawm cov ntaub ntawv sib txawv thiab cov duab kuj tau tsim los ua kom tau raws li ntau yam kev cai tshwj xeeb.
Tag
Cov txheej txheem ntawm cov ntsia hlau hloov cov ntsia hlau yog ntev thiab kawm tiav keeb kwm txheej txheem. Los ntawm thawj qhov tsim tawm rau cov ntawv thov thoob plaws tom ntej, cov ntsia hlau tau maj mam dhau los ua cov kab ke ntawm cov fasteners nrog lawv cov txiaj ntsig tshwj xeeb. Niaj hnub no, cov screws tau dhau los ua ib feem tseem ceeb ntawm peb lub neej txhua hnub thiab txuas ntxiv mus ua lub luag haujlwm tseem ceeb.