All issues
Volume 14, Issue 4
Displaying 1-6 of 6 articles from this issue
- |<
- <
- 1
- >
- >|
-
[in Japanese]1963 Volume 14 Issue 4 Pages 129-134
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSDownload PDF (992K) -
Rintaro TAKAHASHI1963 Volume 14 Issue 4 Pages 135-140
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSA method, first to activate and then sulphurize iron and steel surface layer was invented. This layer, sulphurized in molten sulphur of low temperature (120-175°C), has special features hard to be broken away and of almost the same hardness and resistance to abrasion as those obtained by quenching.
By this method, which can be applied to almost all kinds of iron and steel and is more economical than other surface treatments, their hardness and resistance to abrasion and corrosion are increased, as well as water and soil are prevented from sticking to the surface.
If higher hardness is required, it is better to keep the temperature higher (175-450°C) so as to change the surface of iron and steel to FeS2.View full abstractDownload PDF (1476K) -
Hideo TEZUKA1963 Volume 14 Issue 4 Pages 140-144
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSDry sliding Wear of titanium cast iron of eutectic graphite structure was studied.
The wear resistance was found to increase as the eutectic cell number and hardness of matrix increase. Boron inoculation (0.1, 0.3, 0.5% B) with Fe-B (20% B) was found to increase eutectic cell number and hardness of matrix, and also to improve the sliding wear resistance.View full abstractDownload PDF (2059K) -
Saburo KONISHI1963 Volume 14 Issue 4 Pages 145-146
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSWhen ammonium persulphate is added to copper cyanide plating solution, the latter is, without heating, decomposed into copper sulphate, ammonia and carbondioxide, according to the following equation.
2Na2Cu(CN)3+7(NH4)2S2O8+12H2O→2CuSO4+2 Na2SO4+10(NH4)2SO4+6CO2↑
The solution is alkalized with ammonia, and then titrated by EDTA standard solution using PAN as indicator. Thus the copper content in the copper cyanide baths is easily and rapidly analyzed, yet without being affected by the iron content in the bath.View full abstractDownload PDF (289K) -
Osamu CHIBA, Tsutomu MIYAJIMA1963 Volume 14 Issue 4 Pages 147-148
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSDownload PDF (236K) -
[in Japanese]1963 Volume 14 Issue 4 Pages 149-163
Published: April 20, 1963
Released on J-STAGE: October 30, 2009
JOURNAL FREE ACCESSDownload PDF (3046K)
- |<
- <
- 1
- >
- >|