CN101368245A - Low-alloy gray cast iron - Google Patents
Low-alloy gray cast iron Download PDFInfo
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- CN101368245A CN101368245A CNA2008101572553A CN200810157255A CN101368245A CN 101368245 A CN101368245 A CN 101368245A CN A2008101572553 A CNA2008101572553 A CN A2008101572553A CN 200810157255 A CN200810157255 A CN 200810157255A CN 101368245 A CN101368245 A CN 101368245A
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- cast iron
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- gray cast
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- alloy
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses low-alloy gray cast iron with the advantages of higher intensity, thermal fatigue resistance, anti-oxidation and capacity of anti-growing. The gray cast iron consists of the elements with the following weight percentage: 3.3 to 3.9 percent of carbon, 0.01 to -0.06 percent of sulphur, 1.8 to 2.4 percent of silicon, 1.2 to 1.6 percent of manganese, 0.01 to 0.08 percent of phosphor and the rest is iron. The low-alloy gray cast is mainly used on a metallurgical device.
Description
Technical field
The present invention relates to metallic substance, especially the low-alloy grey cast iron.
Background technology
The progress of Modern Manufacturing Technology has had higher requirement to the quality and the performance of foundry goods.In actual applications, the foundry goods of unlike material, different performance is fit to different working conditionss.
The cast iron characteristics of controlling golden mechanical means use are: envrionment temperature is higher, is heated repeatedly, cools off to the part irregularities, and general cast iron can not meet the demands.
Therefore be sought after that a kind of intensity is higher, the low-alloy cast iron of heat-resistant anti-fatigue performance, the anti-oxidant and long ability of antibiosis.
Summary of the invention
The objective of the invention is provides a kind of low-alloy grey cast iron for satisfying the needs of metallurgical equipment.
A kind of low-alloy grey cast iron is elementary composition by following weight percent: carbon 3.3-3.9%, and sulphur 0.01-0.06%, silicon 1.8-2.4%, manganese 1.2-1.6%, phosphorus 0.01-0.08%, all the other are iron.
In the low-alloy grey cast iron matrix of the present invention, content of pearlite in alloy 〉=98%, cementite content are 1%.Graphite form exists a small amount of C type and E type graphite based on the A type, and length is 4～5 grades.Eutectic cell quantity is 510-530 in the unit surface, according to standard code, belongs to 4 grades.
This material substitutes the spare and accessory parts that HT200 cast iron is used for metallurgical machinery, can obviously improve use properties and life-span, improves 26%-33% through test life.
Embodiment:
In 10 tons of coreless induction intermediate frequency furnaces, the raw material that adds following weight part ratio carries out melting, and tapping temperature is controlled at more than 1450 ℃.
Embodiment one, 15 parts on scrap iron, 0.1 part in 60 parts of steel scraps, 0.1 part of ferrosilicon and ferromanganese.
Embodiment two, 20 parts on scrap iron, 0.3 part in 50 parts of steel scraps, 0.3 part of ferrosilicon and ferromanganese.
Embodiment three, 30 parts on scrap iron, 0.2 part in 40 parts of steel scraps, 0.2 part of ferrosilicon and ferromanganese.
Claims (1)
1. a low-alloy grey cast iron is characterized in that, it is elementary composition by following weight percent: carbon 3.3-3.9%, and sulphur 0.01-0.06%, silicon 1.8-2.4%, manganese 1.2-1.6%, phosphorus 0.01-0.08%, all the other are iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101572553A CN101368245A (en) | 2008-09-27 | 2008-09-27 | Low-alloy gray cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101572553A CN101368245A (en) | 2008-09-27 | 2008-09-27 | Low-alloy gray cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101368245A true CN101368245A (en) | 2009-02-18 |
Family
ID=40412246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101572553A Pending CN101368245A (en) | 2008-09-27 | 2008-09-27 | Low-alloy gray cast iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101368245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051559A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wearable grey cast iron material and preparation method thereof |
| CN102071381A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Heat-resistance grey cast iron material and preparation method |
-
2008
- 2008-09-27 CN CNA2008101572553A patent/CN101368245A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051559A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wearable grey cast iron material and preparation method thereof |
| CN102071381A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Heat-resistance grey cast iron material and preparation method |
| CN102051559B (en) * | 2011-01-14 | 2012-07-04 | 南京信息工程大学 | Wearable grey cast iron material and preparation method thereof |
| CN102071381B (en) * | 2011-01-14 | 2012-08-22 | 南京信息工程大学 | Heat-resistance grey cast iron material and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090218 |