2026-03-08T18:25:30Z https://jaxa.repo.nii.ac.jp/oai

oai:jaxa.repo.nii.ac.jp:00034742 2023-06-20T23:35:34Z 1887:1890 1896:1898:1899:1908

可削性黄銅板(時計齒車用黄銅板)(金屬學) Machinable Brass Sheets for Watch Gears(Metallurgy) 村川, 潔 Murakawa, Kiyoshi The heat-treatment of leaded brass sheets has been studied in order to enhance the machinability for the case in which they are used as watch gear materials. It has been found that the machinability is considerably improved when the sheets are given an anneal at about 700℃, followed by a 78-82% reduction by rolling. The sheet prepared :by-this process has a microstructure very similar to Fig.2a or b. 資料番号: SA3406582000 東京大学理工学研究所 1950-01-20 jpn departmental bulletin paper https://jaxa.repo.nii.ac.jp/records/34742 0371-6090 AN00162611 東京大學理工學研究所報告 3 7/8 218 222 https://jaxa.repo.nii.ac.jp/record/34742/files/SA3406582.pdf application/pdf 1.3 MB 2020-01-24