CH670159A5 - - Google Patents
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- Publication number
- CH670159A5 CH670159A5 CH5071/86A CH507186A CH670159A5 CH 670159 A5 CH670159 A5 CH 670159A5 CH 5071/86 A CH5071/86 A CH 5071/86A CH 507186 A CH507186 A CH 507186A CH 670159 A5 CH670159 A5 CH 670159A5
- Authority
- CH
- Switzerland
- Prior art keywords
- pearlite
- magnetic flux
- cast iron
- graphite cast
- residual
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 42
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 15
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 claims description 28
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 15
- 229910001562 pearlite Inorganic materials 0.000 abstract description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 4
- 239000010439 graphite Substances 0.000 abstract description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 4
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 description 18
- 238000011282 treatment Methods 0.000 description 18
- 230000029142 excretion Effects 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910001567 cementite Inorganic materials 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/202—Constituents thereof
- G01N33/2028—Metallic constituents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1985/000224 WO1986006485A1 (en) | 1985-04-22 | 1985-04-22 | Method of determining quality of nodular graphite cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH670159A5 true CH670159A5 (enrdf_load_stackoverflow) | 1989-05-12 |
Family
ID=13846444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH5071/86A CH670159A5 (enrdf_load_stackoverflow) | 1985-04-22 | 1986-04-22 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH670159A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3590683T1 (enrdf_load_stackoverflow) |
| WO (1) | WO1986006485A1 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116208A1 (de) * | 1991-05-17 | 1992-11-19 | Karlheinz Dr Ing Schiebold | Verfahren und einrichtung zur zerstoerungsfreien werkstoffpruefung |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2738732B2 (ja) * | 1988-09-16 | 1998-04-08 | 株式会社日立製作所 | 劣化度予測装置および方法 |
| CN103630463A (zh) * | 2013-11-29 | 2014-03-12 | 成都成工工程机械井研铸造有限责任公司 | 一种铸铁石墨化程度的检测方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265964A (en) * | 1961-09-14 | 1966-08-09 | Dayton Malleable Iron Co | Magnetic inspection of iron castings |
| JPS5682443A (en) * | 1979-12-11 | 1981-07-06 | Nippon Steel Corp | Transformation rate measuring apparatus of steel material |
| DE3015894A1 (de) * | 1980-04-24 | 1981-10-29 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und einrichtung zur kontinuierlichen, beruehrungslosen ueberwachung des gefuegezustandes von kaltband |
-
1985
- 1985-04-22 DE DE19853590683 patent/DE3590683T1/de not_active Ceased
- 1985-04-22 WO PCT/JP1985/000224 patent/WO1986006485A1/ja active Application Filing
-
1986
- 1986-04-22 CH CH5071/86A patent/CH670159A5/de not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116208A1 (de) * | 1991-05-17 | 1992-11-19 | Karlheinz Dr Ing Schiebold | Verfahren und einrichtung zur zerstoerungsfreien werkstoffpruefung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3590683T1 (enrdf_load_stackoverflow) | 1987-04-02 |
| WO1986006485A1 (en) | 1986-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |