CN1059170A - Quenching and quick heating resistant nodular cast iron for coke quenching car - Google Patents
Quenching and quick heating resistant nodular cast iron for coke quenching car Download PDFInfo
- Publication number
- CN1059170A CN1059170A CN 90107163 CN90107163A CN1059170A CN 1059170 A CN1059170 A CN 1059170A CN 90107163 CN90107163 CN 90107163 CN 90107163 A CN90107163 A CN 90107163A CN 1059170 A CN1059170 A CN 1059170A
- Authority
- CN
- China
- Prior art keywords
- cast iron
- coke
- side plate
- nodular cast
- quenching
- 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.)
- Pending
Links
- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 15
- 238000010791 quenching Methods 0.000 title claims abstract description 15
- 230000000171 quenching effect Effects 0.000 title claims abstract description 15
- 239000000571 coke Substances 0.000 title abstract description 15
- 238000010438 heat treatment Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 238000000137 annealing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 238000005087 graphitization Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000003245 working effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The invention discloses a nodular cast iron material for a coke quenching car side plate (comprising a bottom plate) which is particularly used for cooling coke by water spray in coke production, and the nodular cast iron material comprises the following components (by weight percentage) of 3.0-3.8C, 2.5-3.7 Si, 0.25-0.50 Mn, less than or equal to 0.02S, less than or equal to 0.08P, 0.02-0.05 Re0.05 Mg0.03-0.045 and the balance Fe. The coke quenching car side plate made of the quenching and quick heating resistant nodular cast iron material can be obtained by putting the furnace burden of the components into a furnace for smelting, casting and molding according to the prior method, and then carrying out graphitization and annealing treatment at the high temperature of 900-960 ℃, wherein the service life of the coke quenching car side plate is as long as 5-8 months.
Description
The invention discloses a kind of especially at quenching car side plate (the comprising base plate) ductile cast iron material that adopts the water spray cooling coke in the coke production.
Before this, adopt the quenching car of water spray cooling coke all to adopt the QT40-10 spheroidal graphite cast iron among the former Chinese mechanical industry ministerial standard JB298-62 to do the side plate material in the Chinese coke production, also adopt similar spheroidal graphite cast iron side plate material under the external same case.The quenching car side plate that adopts above-mentioned materials to make, meet water coolant in a short period of time sharply under the mal-condition of cooling at the high temperature when packing oven-fresh coke into, generally only use about one month and can't use with regard to embrittlement occurring, factory has only often leans on the replacing side plate to keep production, not only maintenance capacity is big, and the time is long, has also wasted a large amount of metallic substance, production efficiency reduces, and coke cost increases.
Purpose of the present invention is intended to according to the problems referred to above water spray cooling coke quenching car side plate in the existing coke production be improved with material, to obtain a kind of the maintenance under the constant situation of side plate mechanical property, ductile cast iron material that can anti-rapid heat cycle is to prolong the work-ing life of side plate.
For achieving the above object, the present invention proposes a kind of quenching car side plate of new ductile cast iron material, its composition (weight percent) is C3.0～3.8, Si2.5～3.7, Mn0.25～0.50, S≤0.02, P≤0.08, Re0.02～0.05, Mg0.03～0.045, all the other are Fe.By traditional method the furnace charge of said components is gone into the molten refining of stove, cast form makes it do graphitizing annealing afterwards under 900～960 ℃ of high temperature and handles, and can obtain a kind of quenching car side plate of the ductile cast iron material of anti-the rapid heat cycle.
Compared with prior art, because the present invention has adopted the spheroidal graphite cast iron side plate of reasonable composition proportion, mechanical property is identical, but under the mal-condition identical with original technology, can reach 5～8 months its work-ing life, and heat impact strength significantly strengthens, and significantly reduced side plate repair and replacement number of times, can save a large amount of metallic substance, production efficiency significantly improves.
Optimal components proportioning of the present invention (weight percent) is: C3.12, and Si2.76, Mn0.475, S0.014, P0.068, Re0.041, Mg0.04, all the other are Fe.Be 8 months spheroidal graphite cast iron side plate work-ing life of optimal components proportioning, is 8 times of original side plate life-span, the economic benefit highly significant.
Claims (2)
1, a kind of quenching car side plate is characterized in that its composition (weight percent) is with the spheroidal graphite cast iron of anti-the rapid heat cycle: C3.0～3.8, and Si2.5～3.7, Mn0.25～0.5, S≤0.02, P≤0.08, Re0.02～0.05, Mg0.03～0.045, all the other are Fe.
2, according to the quenching car side plate described in the claim 1 with the spheroidal graphite cast iron of anti-the rapid heat cycle, it is characterized in that its optimal components (weight percent) is: C3.12, Si2.76, Mn0.475, S0.014, P0.068, Re0.041, Mg0.04, all the other are Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107163 CN1059170A (en) | 1990-08-24 | 1990-08-24 | Quenching and quick heating resistant nodular cast iron for coke quenching car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107163 CN1059170A (en) | 1990-08-24 | 1990-08-24 | Quenching and quick heating resistant nodular cast iron for coke quenching car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1059170A true CN1059170A (en) | 1992-03-04 |
Family
ID=4880419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107163 Pending CN1059170A (en) | 1990-08-24 | 1990-08-24 | Quenching and quick heating resistant nodular cast iron for coke quenching car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059170A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100156C (en) * | 1999-01-25 | 2003-01-29 | 吉林工业大学 | New brake hub material |
| CN101773989B (en) * | 2010-01-29 | 2011-11-09 | 迁安市津唐球墨铸管有限公司 | Process for producing ductile cast iron by short-flow melting and sodium silicate sand molding |
| CN105838979A (en) * | 2016-06-14 | 2016-08-10 | 福建省德赛泵业有限公司 | Ductile iron and manufacturing method thereof |
-
1990
- 1990-08-24 CN CN 90107163 patent/CN1059170A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100156C (en) * | 1999-01-25 | 2003-01-29 | 吉林工业大学 | New brake hub material |
| CN101773989B (en) * | 2010-01-29 | 2011-11-09 | 迁安市津唐球墨铸管有限公司 | Process for producing ductile cast iron by short-flow melting and sodium silicate sand molding |
| CN105838979A (en) * | 2016-06-14 | 2016-08-10 | 福建省德赛泵业有限公司 | Ductile iron and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |