鑄鐵の分析試料採取法に關する研究
スポンサーリンク
概要
- 論文の詳細を見る
In order to decide the most suitable method to take the samples of cast iron used for chemical analysis, we prepared six square bars which were cast in sand mould of various sizes (10×10×100∿100×100×100mm). Each bars were cut from the center and twelve analytical samples taken from the outer and inner layers of them by drilling. Investigation was made on the influence of the particle size and of the rate of cooling on chemical composition of cast iron. We further made a metallurgical consideration from the relation between microscopic structure and mechanical properties. The results were : (1) The difference of chemical composition between the bars with the largest cross section and the bars with the smallest cross section is remakable. Namely, it is obvious that the chemical composition of cast iron is much effected in the structure of it. In other words, the rate of solidification as well as the rate of cooling after solidification play on important part in the change of structure. (2) Therefore, the white cast iron on which the change in the structure is very small indicates the standard value of chemical analysis. (3) In the gray cast iron, results of chemical analysis are much effected by the sampling method. However in any way, the coarse particles nearly indicate average value for chemical analysis, and the fine particles indicate marked defference. From the results of above experiments, it was found that the analytical results of each compositions of cast iron is much influenced by the particle sizes of shavings as well as the structure of specimens, and the coarser particle size than the particle size of 20 mesh indicates the standard values of chemical analysis. Further as a result of the comparative studies on the various methods of sampling of cast iron, it was confirmed that the most simple method of would be to analyse the coarse particles which were obtained by drilling with a 1-in. dia large-angle-edge (about 150°) drill at about 80 r.p.m.
- 社団法人日本鉄鋼協会の論文
- 1954-07-25
著者
関連論文
- 44 13% Cr 鑄鋼に關する二, 三の實驗(日本鐵鋼協會第 46 囘講演大會講演大要)
- 鑄鋼に關する研究 (I) : 高温に於ける各種性質並びにオーステナイト粒度に關する二, 三の實驗
- 熔銑爐熔解に關する二, 三の實驗 II
- 熔銑爐熔解に關する二, 三の實驗 I
- 32. 熔銑爐熔解に關する二, 三の實驗
- 鑄鐵の分析試料採取法に關する研究
- 鐵鋼の分光分析用試料採取並に調製法の研究
- 91 分光分析に依る銑及び鑄鐵定量法の研究〔附〕積算電力計による露出調節(日本鐵鋼協會第 46 囘講演大會講演大要)
- 14 酸性平爐酸化期に於ける酸素の擧動に就て(日本鐵鋼協會第 46 囘講演大會講演大要)
- 鋼の結晶粒度に關する二, 三の研究 : 酸性及び鹽基性兩平爐鋼精錬過程に於ける結晶粒度の差異について
- 造塊作業の研究 (III) : 取鍋内に於ける酸性及び鹽基性兩平爐鋼中の非金属介在物の變化
- 115 鑄鐵の分析試料採取法に關する研究(日本鐵鋼協會第 45 回講演大會講演大要)
- 112 鐵鋼の分光分析用試料採取並に調製法の研究(日本鐵鋼協會第 45 回講演大會講演大要)
- 73 熔鋼によるシヤモツト煉瓦の侵蝕に關する研究 (I) : 爐種, 鋼種並に熔鋼中の Mn 及び Si の影響(日本鐵鋼協會第 45 回講演大會講演大要)
- 43 造塊作業の研究 (IV) : 取鍋内に於ける酸性及び鹽基性兩平爐鋼中の非金屬介在物の變化(日本鐵鋼協會第 44 回講演大會講演大要)
- 延性鑄鐵中の亞鉛定量法 : 亞鉛添加による
- グクチル鑄鐵中の Mg 定量法
- 酸性鋼滓中の全鐵迅速定量法に就て : Fe^ 及び Cr^ の存在に就て
- HClO_4 によるフ***マンガン中のマンガン迅速定量法
- パーライト可鍛鑄鐵の研究
- 鑄鐵に及ぼすガスの影響
- 銑鐵の性質に關する研究
- 鐵鋼中の砒素迅速定量法に就て
- 82. 砒素を含む鐵鋼中の燐迅速分析法
- 鑄鐵中のサンド分析法(第 2 報) : 〔附〕熔銑中の FeO 分析法
- 鑄鐵中のサンド分析法(第 1 報) : 〔附〕熔銑中の FeO 分析法
- 33. 鑄鐵中のサンド分析法
- 砒素を含む鐵鋼中の燐迅速定量法 (II) : (附)吸引濾過による鋼中の燐迅速定量法
- 砒素を含む鐵鋼中の燐迅速定量法 (I) : (附)吸引濾過による鋼中の燐迅速定量法