In the 1st century ad, ntoo ntsia hlau tau siv rau hauv cawv thiab txiv ntseej-roj presses, thiab cutters (kais) rau txiav cov xov sab hauv tau siv. Txawm hais tias Archimedes tau txais txiaj ntsig nrog kev tsim cov ntsia hlau hauv xyoo pua 3 bce, nws cov ntsia hlau…
Thaum twg cov ntsia hlau siv thawj zaug hauv rooj tog?
Hlau ntoo screws - rau fastening rau hauv ntoo - zoo li muaj keeb kwm nyob rau hauv lub xyoo pua 15th century Cov ntsia hlau yog cov neeg tuaj tshiab rau kev tsim cov rooj tog thiab tsis tau dhau los ua cov khoom siv ntoo kom txog thaum Cov cuab yeej siv tau zoo dua tau tsim nyob ib ncig ntawm qhov kawg ntawm lub xyoo pua 18th.
Thaum twg Phillips taub hau ntsia hlau pib siv hauv rooj tog?
Philips taub hau screws tau qhia hauv the lig 1930's. Txhua lub rooj tog uas muaj Philips lub taub hau ntsia hlau yuav qhia tau hais tias cov khoom tau tsim tom qab xyoo 1930's lig, los yog nws tsis yog cov ntsia hlau qub.
Thaum twg tib neeg pib siv Phillips screws?
In thaum 1930s, Phillips taub hau ntsia hlau tau tsim los ntawm Oregon tus neeg lag luam Henry Phillips (1889-1958). Automobile manufacturers tam sim no siv lub tsheb sib dhos kab. Lawv xav tau cov ntsia hlau uas tuaj yeem siv lub zog ntau dua thiab tuaj yeem muab kev nrawm dua.
Vim li cas peb tseem siv Phillips screws?
Vim li cas peb tseem siv Phillips ntsia hlau? Philips lub taub hau tau tsim tshwj xeeb kom koj tsis tuaj yeem hla lawv, yog vim li cas. Lub hau ntswj plam tawm yog qhov tsim ua haujlwm zoo. … Peb siv Phillips tshwj xeeb kom cov ntsia hlau tsis tuaj yeem dhau torqued.
