CN101270433A - Method for producing alloy nodular cast iron material - Google Patents
Method for producing alloy nodular cast iron material Download PDFInfo
- Publication number
- CN101270433A CN101270433A CNA2008100159811A CN200810015981A CN101270433A CN 101270433 A CN101270433 A CN 101270433A CN A2008100159811 A CNA2008100159811 A CN A2008100159811A CN 200810015981 A CN200810015981 A CN 200810015981A CN 101270433 A CN101270433 A CN 101270433A
- Authority
- CN
- China
- Prior art keywords
- iron
- percent
- ferrochrome
- molybdenum
- molten 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.)
- Pending
Links
Abstract
The invention discloses a production method of alloy ductile iron. The components contain pig iron (Q12), waste steel, ferrochrome, ferromolybdenum, nodulizer and inoculant. The component proportion is: 83 to 92 percent of pig iron (Q12), 3.5 to 13.5 percent of waste steel, 0.5 percent of ferrochrome, 1 percent of ferromolybdenum, 1 to 2 percent of nodulizer and 0.5 to 1 percent of inoculant. The invention solves the problem of existing automobile die industry including the low wear resistance and the low tensile strength as well as not adapting the work situation for the ductile iron with low strength of cast-iron material and provides a production method of the ductile iron with high strength, is suitable for some application of including profile and having the requirement of high wear resistance such as drawing punch, binder, material-press plate of flanging and restriking die and punch of monobloc casting.
Description
Technical field
The present invention relates to vehicle mould cast material field, specifically a kind of production method of alloy nodular cast iron material.
Background technology
At present, in the vehicle mould industry, as the low strength spheroidal graphite cast iron of cast material, because wear resistance and tensile strength are low, inapplicable its working order.
Summary of the invention
The present invention uses low strength spheroidal graphite cast iron as cast material for solving in the present vehicle mould industry, because wear resistance and tensile strength are low, and the problem of inapplicable its working order, the production method of inventing a kind of high-strength alloy ductile cast iron material.
The present invention is for addressing the above problem, and the technical scheme of being taked is that a kind of production method of alloy nodular cast iron material comprises:
1, its moiety is: the pig iron (Q12), steel scrap, ferrochrome, molybdenum-iron, nodulizing agent, nucleating agent.
2, its component proportions is: the pig iron (Q12) 83-92%, steel scrap 3.5-13.5%, ferrochrome 0.5%, molybdenum-iron 1%, nodulizing agent 1-2%, nucleating agent 0.5-1%.
3, its production technique is:
(1) selects materials: choose above-mentioned six kinds of starting material in proportion.
(2) molten steel: the pig iron (Q12), the steel scrap got ready are added in the electric furnace, be heated to 1400 ℃.
(3) add alloy: in molten iron, add ferrochrome, ferro-molybdenum, the ebullient molten iron is continued to be heated to 1520-1550 ℃, and be incubated 30 minutes and make it full and uniform.
(4) add nodulizing agent, nucleating agent: nodulizing agent is added the bottom of hot metal ladle, and top covers nucleating agent, and adds the bushel iron compacting.
(5) come out of the stove: molten iron is poured in the pouring ladle, and in pouring process, breed, take off filter three times then.
(6) cast: when the molten iron temperature in the pouring ladle is reduced to 1450-1420 ℃, go out the bag cast.
Technical process is: (pig iron (Q12), steel scrap, ferrochrome, molybdenum-iron, nodulizing agent, the nucleating agent) → molten steel → adding alloy of selecting materials → add nodulizing agent, nucleating agent → come out of the stove → pour into a mould.
During use, when the molten iron temperature in the pouring ladle is reduced to 1450-1420 ℃, go out bag as required and pour into mould.
Technique effect
Technique effect of the present invention is, can realize a kind of high-wearing feature, high-tensile alloy nodular cast iron material, single poly-coupon tensile strength is pressed GB9439-88 respectively, GB977-84 carries out, HBS presses JBN3997-85 on mould, GB231-84 carries out, its tensile strength is more than 750Mpa, hardness is at HB220-320, metallographic examination is undertaken by GB216-87, its nodularization rate is 2 grades, the graphite size is the 5-6 level, matrix is perlite+ferrite+a small amount of cementite, perlite quantity is more than 85, its heat-treat condition technology is simple, only need anneal+flame surface quenching, is suitable for drawing punch, holding pad, the curring and sizing die holding pad, banding pattern face such as the big punch of cast-in-block and requirement possess the place of high-wearing feature and use.
Embodiment
Embodiment 1:
Get 83 kilograms of the pig iron (Q12), 13.5 kilograms of steel scraps, 0.5 kilogram in ferrochrome, 1 kilogram of molybdenum-iron, 1 kilogram of nodulizing agent, 1 kilogram of nucleating agent.
The pig iron (Q12), steel scrap are added in the electric furnace, be heated to 1400 ℃.
In molten iron, add ferrochrome, ferro-molybdenum, the ebullient molten iron is continued to be heated to 1520-1550 ℃, and be incubated 30 minutes and make it full and uniform.
Nodulizing agent is added the bottom of hot metal ladle, and top covers nucleating agent, and adds the bushel iron compacting.
Molten iron is poured in the pouring ladle, and in pouring process, breed, take off filter three times then.
When the temperature of molten iron in the pouring ladle is reduced to 1450-1420 ℃, go out the bag cast.
Embodiment 2:
Get 88 kilograms of the pig iron (Q12), 8 kilograms of steel scraps, 0.5 kilogram in ferrochrome, 1 kilogram of molybdenum-iron, 1.75 kilograms of nodulizing agents, 0.75 kilogram of nucleating agent.
The pig iron (Q12), steel scrap are added in the electric furnace, be heated to 1400 ℃.
In molten iron, add ferrochrome, ferro-molybdenum, the ebullient molten iron is continued to be heated to 1520-1550 ℃, and be incubated 30 minutes and make it full and uniform.
Nodulizing agent is added the bottom of hot metal ladle, and top covers nucleating agent, and adds the bushel iron compacting.
Molten iron is poured in the pouring ladle, and in pouring process, breed, take off filter three times then.
When the temperature of molten iron in the pouring ladle is reduced to 1450-1420 ℃, go out the bag cast.
Embodiment 3:
Get 92 kilograms of the pig iron (Q12), 3.5 kilograms of steel scraps, 0.5 kilogram in ferrochrome, 1 kilogram of molybdenum-iron, 2 kilograms of nodulizing agents, 1 kilogram of nucleating agent.
The pig iron (Q12), steel scrap are added in the electric furnace, be heated to 1400 ℃.
In molten iron, add ferrochrome, ferro-molybdenum, the ebullient molten iron is continued to be heated to 1520-1550 ℃, and be incubated 30 minutes and make it full and uniform.
Nodulizing agent is added the bottom of hot metal ladle, and top covers nucleating agent, and adds the bushel iron compacting.
Molten iron is poured in the pouring ladle, and in pouring process, breed, take off filter three times then.
When the temperature of molten iron in the pouring ladle is reduced to 1450-1420 ℃, go out the bag cast.
Claims (1)
1, a kind of production method of alloy nodular cast iron material is characterized in that moiety is: the pig iron (Q12), steel scrap, ferrochrome, molybdenum-iron, nodulizing agent, nucleating agent;
Its component proportions is: the pig iron (Q12) 83-92%, steel scrap 3.5-13.5%, ferrochrome 0.5%, molybdenum-iron 1%, nodulizing agent 1-2%, nucleating agent 0.5-1%;
Its production technique comprises:
(1) pig iron (Q12), the steel scrap of getting ready added in the electric furnace, be heated to 1400 ℃;
(2) in the fused molten iron, add ferrochrome, ferro-molybdenum, the ebullient molten iron is continued to be heated to 1520-1550 ℃, and be incubated 30 minutes and make it full and uniform;
(3) nodulizing agent is added the bottom of hot metal ladle, top covers nucleating agent, and adds the bushel iron compacting;
(4) molten iron is poured in the pouring ladle, and in pouring process, breed, take off filter three times then;
(5) when the temperature of molten iron in the pouring ladle is reduced to 1450-1420 ℃, go out the bag cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100159811A CN101270433A (en) | 2008-05-07 | 2008-05-07 | Method for producing alloy nodular cast iron material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100159811A CN101270433A (en) | 2008-05-07 | 2008-05-07 | Method for producing alloy nodular cast iron material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101270433A true CN101270433A (en) | 2008-09-24 |
Family
ID=40004656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100159811A Pending CN101270433A (en) | 2008-05-07 | 2008-05-07 | Method for producing alloy nodular cast iron material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101270433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935795A (en) * | 2010-08-17 | 2011-01-05 | 江铃汽车股份有限公司 | Diffusion and fusion method for ferromolybdenum and application thereof |
| CN102383027A (en) * | 2011-10-20 | 2012-03-21 | 宁波康发铸造有限公司 | Preparation method of nodular cast iron |
-
2008
- 2008-05-07 CN CNA2008100159811A patent/CN101270433A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935795A (en) * | 2010-08-17 | 2011-01-05 | 江铃汽车股份有限公司 | Diffusion and fusion method for ferromolybdenum and application thereof |
| CN102383027A (en) * | 2011-10-20 | 2012-03-21 | 宁波康发铸造有限公司 | Preparation method of nodular cast iron |
| CN102383027B (en) * | 2011-10-20 | 2014-04-16 | 宁波康发铸造有限公司 | Preparation method of nodular cast iron |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103352161B (en) | A kind of be applied to petroleum industry pump case, pump seat, impeller or pump cover iron casting and casting technique | |
| CN104120332B (en) | High-intensity high-tenacity spheroidal graphite cast-iron 600-10 and production technology thereof | |
| CN102965567B (en) | Casting thick large-section pearlite nodular cast iron and casting method thereof | |
| CN104233048B (en) | Cast state high-strength and high-toughness ball iron alloy for steering axle and preparation method of cast state high-strength and high-toughness ball iron alloy | |
| CN102337448A (en) | Raw material composition for producing high-performance nodular cast iron valve and production method thereof | |
| CN101886208A (en) | Medium silicon-molybdenum ductile iron material | |
| CN102220543A (en) | High-strength wear-resisting nodular cast iron applied on water pump | |
| CN101886209B (en) | Medium silicon-molybdenum vermicular iron material | |
| CN101956140A (en) | Lining plate for large ball mill and casting method thereof | |
| CN102690987A (en) | Microalloyed high-strength synthetic gray cast iron and casting method thereof | |
| CN102400032B (en) | Large-cross-section nodular cast iron | |
| CN101135021B (en) | Aluminium magnesium ferroalloy for molten steel deoxidization desulfuration and alloying and preparation method thereof | |
| CN103589965B (en) | A kind of Low-alloy high-strength cast steel and preparation method thereof | |
| CN105506442A (en) | Si-Mn alloying grinding ball iron grinding balls and preparation method thereof | |
| CN104726759A (en) | Production method of as-cast high-strength gray cast iron | |
| CN101988173B (en) | Cast steel material and preparation method thereof | |
| CN101736123B (en) | Boron-containing alloy smelting process with high yield | |
| CN106086682B (en) | A kind of high-strength die steel and its processing method | |
| CN102296246B (en) | Ultrahigh strength cast steel and preparation method as well as welding process thereof | |
| CN101270433A (en) | Method for producing alloy nodular cast iron material | |
| CN102352467B (en) | Superhigh strength cast steel, and preparation method and welding process thereof | |
| CN103146984A (en) | High-intensity gray pig iron inoculator and preparation method thereof | |
| CN101195889A (en) | CuCr low-alloy cast iron cylinder cover | |
| CN105695856A (en) | Nodular cast iron for high-toughness driving axle housing of high-end load-bearing forklift and production method thereof | |
| CN102373365B (en) | Large-section nodular cast iron |
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: 20080924 |