JPS5630646A - Pretreatment method of chromium analysis of iron alloy - Google Patents
Pretreatment method of chromium analysis of iron alloyInfo
- Publication number
- JPS5630646A JPS5630646A JP10652479A JP10652479A JPS5630646A JP S5630646 A JPS5630646 A JP S5630646A JP 10652479 A JP10652479 A JP 10652479A JP 10652479 A JP10652479 A JP 10652479A JP S5630646 A JPS5630646 A JP S5630646A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- chromium
- carbon
- iron alloy
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
PURPOSE: To accurately analyze chromium through simple operation, by charging a sample alloy into a carbon burner and supplying oxygen at a prescribed temperature to burn off the carbon in the alloy and oxidize its chromium and iron.
CONSTITUTION: A sample alloy S is charged into a carbon burner A. Oxygen is supplied as the temperature of the alloy is maintained at 650W700°C. As a result, the carbon in the alloy is burned off and its chromium and iron are oxidized. It is preferable to previously pulverize the alloy to about 250W350 mesh. According to this method, even an alloy containing 2% or more by weight of carbon and 3% or more by weight of chromium, some of which is present in the form of a carbide which cannot be dissolved by acid, alkali and a melting agent, can be easily molten by the melting agent after the treatment as mentioned above. Accurate analysis is thus enabled.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10652479A JPS5630646A (en) | 1979-08-20 | 1979-08-20 | Pretreatment method of chromium analysis of iron alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10652479A JPS5630646A (en) | 1979-08-20 | 1979-08-20 | Pretreatment method of chromium analysis of iron alloy |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5630646A true JPS5630646A (en) | 1981-03-27 |
JPS6343709B2 JPS6343709B2 (en) | 1988-09-01 |
Family
ID=14435781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10652479A Granted JPS5630646A (en) | 1979-08-20 | 1979-08-20 | Pretreatment method of chromium analysis of iron alloy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5630646A (en) |
-
1979
- 1979-08-20 JP JP10652479A patent/JPS5630646A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6343709B2 (en) | 1988-09-01 |
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