CN101708666A - Alloy steel composite material and preparation method and application thereof - Google Patents
Alloy steel composite material and preparation method and application thereof Download PDFInfo
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- CN101708666A CN101708666A CN200910102276A CN200910102276A CN101708666A CN 101708666 A CN101708666 A CN 101708666A CN 200910102276 A CN200910102276 A CN 200910102276A CN 200910102276 A CN200910102276 A CN 200910102276A CN 101708666 A CN101708666 A CN 101708666A
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Abstract
The invention relates to an alloy steel composite material which comprises ferrovanadium alloy steel and medium carbon alloy steel, wherein the ferrovanadium alloy steel is used as a cladding covered on a basal body made of the medium carbon alloy steel. The high-vanadium Fe-V alloy cladding is firstly carburized so as to improve the rigidity and the wearing resistance of the cladding, and then the medium carbon alloy steel basal body is covered, so that the strength of the material basal body can be ensured, and the material has toughness. Particularly, the rigidity of the cladding Fe-V alloy of a composite mould material after subsequent heat treatment is more than HRC 65, and the rigidity of the medium carbon alloy steel is about HRC 55. Proved by repeated researches and practices, the service life of the material is more than two times longer than that of conventional cold working mould steel (Cr12).
Description
Technical field
The present invention relates to a kind of metallic composite, relate in particular to a kind of material that is composited by two kinds of steel alloys, and the preparation method of this composite and application.
Background technology
Mould is important shaping process unit, and die forming has characteristics such as high efficiency, high accuracy, high uniformity and low consumption, is that other processing method is incomparable.In industrial circles such as machinery, electronics, light industry, automobile, building and Aero-Space, there are 60%-90% product parts, assembly and parts to utilize the mould production and processing.Now, " mould is exactly a product quality ", the idea of " mould is exactly an economic benefit " is familiar with by increasing people and is accepted.
Vanadium and carbon can form vanadium carbon carbide, have high hardness, give stronger wearability of alloy and resistance to impact.Be called in a kind of Chinese patent application of low-carbon low-alloy steel (02113061.2) in name, the composition percetage by weight of the high vanadium high-wear-resistant alloy that relates to is: C:2.0-3.2; Si:1.0-1.5; Cr:7.0-12.0; Mn:0.8-1.2; V:8.0-15.0; S :≤0.05; Mo:0.8-1.5; P :≤0.07; All the other are Fe and impurity.
Be the key that guarantees mould high efficiency, high-quality the service life of mould.The failure mode of diel mainly is wearing and tearing, and therefore, on the basis that guarantees the mould obdurability, the hardness, the wearability that how to improve mould have become the constantly target of pursuit of researcher.
Summary of the invention
An object of the present invention is to provide a kind of alloy steel composite material, use the steel alloy of two kinds of different qualities, the hardness of reinforced composite and wearability.
Another object of the present invention provides a kind of preparation method of alloy steel composite material.
Another object of the present invention provides a kind of alloy steel composite material that is used for the high rigidity and the high-wearing feature of mould.
A kind of alloy steel composite material of the present invention comprises ferrovanadium (Fe-V) steel alloy and medium carbon alloy steel.With the ferrovanadium steel is coating, and being covered in the medium carbon alloy steel is on the matrix of material.
Preferably, described ferrovanadium steel is a high vanadium ferroalloy vanadium alloy steel, and wherein the mass percent content of element V is 5.80-6.00, and other chemical composition (mass percent) is: C:0.08-0.10; Si:0.030-0.034; Cr:0.010-0.015; Mn:0.20-0.25; V:5.80-6.00; S :≤0.01; P :≤0.008; All the other are Fe and impurity; Described medium carbon alloy steel is 40CrMnMo, and its chemical composition (mass percent) is: C:0.37-0.45; Si:0.17-0.37; Mn:0.90-1.20; Mo:0.20-0.30; Cr:0.90-1.20; Hardness: HB 285-341.
Preferably, described ferrovanadium steel is a cementite vanadium alloy steel, the preferred 6.0wt% of its v element.
Alloy steel composite material of the present invention, its preparation method is as follows:
1) the ferrovanadium steel finally is rolled into the sheet material that thickness is 0.83-0.85mm after smelting and forging;
2) sheet material that step 1) is obtained places gas carbruizing furance, under 915-920 ℃, and carburizing 4 hours, the carburizing carbon potential is 1.05-1.15%C, afterwards air cooling rapidly;
3) with step 2) the high vanadium cementite vanadium alloy steel of gained is overlying on the supply attitude 40CrMnMo medium carbon alloy steel that thickness is 100-120mm, and welding;
4) after the welding, be 1100-1120 ℃ in temperature, insulation 10min, rolling drafts is 4.5-5.5mm;
5) afterwards, be 1100-1120 ℃ in temperature again, insulation 30min, rolling drafts is 4.5-5.5mm, the air cooling of rolling back;
6) last, earlier behind 840-850 ℃ of oil quenching, again through 190-200 ℃ of tempering 2h.
When alloy steel composite material of the present invention, have certain relevance between each parameter of its preparation method, when the wearability and the hardness of the composite that adopts following method to make reaches desirable requirement, step is as follows:
1) the ferrovanadium steel finally is rolled into the sheet material that thickness is 0.83-0.85mm after smelting and forging;
2) sheet material that step 1) is obtained places gas carbruizing furance, under 920 ℃, and carburizing 4 hours, the carburizing carbon potential is 1.1%C, afterwards air cooling rapidly;
3) with step 2) the high vanadium cementite vanadium alloy steel of gained is overlying on the supply attitude 40CrMnMo medium carbon alloy steel that thickness is 100-120mm, and welding;
4) after the welding, be 1100 ℃ in temperature, insulation 10min, rolling drafts is 5mm;
5) afterwards, be 1100 ℃ in temperature again, insulation 30min, rolling drafts is 5mm, the air cooling of rolling back;
6) last, earlier behind 850 ℃ of oil quenchings, again through 200 ℃ of tempering 2h.
The surperficial Fe-V alloy rigidity of the alloy steel composite material that is made by said method is more than the HRC65, the hardness of medium carbon alloy steel is about HRC55, material use as mould has very strong wearability and very high hardness, and be more than 2 times of conventional cold work die steel (Cr12) service life.
The beneficial effect that the present invention realizes:
The present invention is a coating with the Fe-V alloy of the high vanadium of carburizing, utilizes tiny even carbide a large amount of in the tissue to improve the hardness and the wearability of coating, is matrix again with the medium carbon alloy steel, promptly guarantees the intensity of material matrix, makes material have toughness again.Especially the coating Fe-V hardness of alloy through the composite die material of subsequent heat treatment is more than the HRC65, and the hardness of medium carbon alloy steel is about HRC55.Through the research of repeated multiple times with facts have proved that be more than 2 times of conventional cold work die steel (Cr12) service life of this material, has good application prospects.
The specific embodiment
Below describe technical scheme of the present invention in detail.Only for the explanation concrete grammar, its scale of this method is not subjected to the restriction of embodiment to the embodiment of the invention.
Embodiment
The ferrovanadium steel that with content of vanadium is 6.0wt% finally is rolled into the sheet material that thickness is 0.8mm after smelting and forging.Then sheet material is placed gas carbruizing furance, under 920 ℃, carburizing 4 hours, the carburizing carbon potential is 1.1%C, afterwards air cooling rapidly.Then the high vanadium cementite vanadium alloy steel with gained is overlying on the supply attitude 40CrMnMo medium carbon alloy steel that thickness is 100mm, and welding.After the welding, be 1100 ℃ in temperature, insulation 10min, rolling drafts is 5mm.Afterwards, be 1100 ℃ in temperature again, insulation 30min, rolling drafts is 5mm, the air cooling of rolling back.At last, earlier through 850 ℃ of oil quenchings, again through 200 ℃ of tempering 2h.
After measured, the coating Fe-V hardness of alloy of composite die material is more than the HRC65, and the hardness of medium carbon alloy steel is about HRC55.Through the research of repeated multiple times with facts have proved that be more than 2 times of conventional cold work die steel (Cr12) service life of this material.
Claims (8)
1. an alloy steel composite material comprises ferrovanadium steel and medium carbon alloy steel, and wherein the ferrovanadium steel is a coating, and being covered in the medium carbon alloy steel is on the matrix of material.
2. alloy steel composite material according to claim 1, the content of vanadium that it is characterized in that described ferrovanadium steel is 6.0wt%.
3. alloy steel composite material according to claim 1 is characterized in that described ferrovanadium steel is a cementite vanadium alloy steel.
4. alloy steel composite material according to claim 1 is characterized in that described medium carbon alloy steel is 40CrMnMo.
5. the preparation method of an alloy steel composite material, its step is as follows:
1) the ferrovanadium steel finally is rolled into the sheet material that thickness is 0.83-0.85mm after smelting and forging;
2) sheet material that step 1) is obtained places gas carbruizing furance, under 915-920 ℃, and carburizing 4 hours, the carburizing carbon potential is 1.05-1.15%C, afterwards air cooling rapidly;
3) with step 2) the high vanadium cementite vanadium alloy steel of gained is overlying on the supply attitude 40CrMnMo medium carbon alloy steel that thickness is 100-120mm, and welding;
4) after the welding, be 1100-1120 ℃ in temperature, insulation 10min, rolling drafts is 4.5-5.5mm;
5) afterwards, be 1100-1120 ℃ in temperature again, insulation 30min, rolling drafts is 4.5-5.5mm, the air cooling of rolling back;
6) last, earlier behind 840-850 ℃ of oil quenching, again through 190-200 ℃ of tempering 2h.
6. the preparation method of alloy steel composite material according to claim 5, the content of vanadium that it is characterized in that described ferrovanadium steel is 6.0wt%.
7. alloy steel composite material that makes according to the preparation method of claim 5 or 6 described alloy steel composite materials.
8. claim 1-4 and one of 7 described alloy steel composite materials, its application in mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102276A CN101708666A (en) | 2009-09-10 | 2009-09-10 | Alloy steel composite material and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910102276A CN101708666A (en) | 2009-09-10 | 2009-09-10 | Alloy steel composite material and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173118A (en) * | 2010-12-09 | 2011-09-07 | 嘉兴学院 | Composite material for refractory brick mold and preparation method thereof |
| CN110801907A (en) * | 2019-10-11 | 2020-02-18 | 常熟市电力耐磨合金铸造有限公司 | High-wear-resistance composite casting hammer disc and preparation process thereof |
| CN115058572A (en) * | 2022-06-13 | 2022-09-16 | 北京科技大学 | Stainless steel/carbon steel laminated composite board with interlayer and preparation method thereof |
-
2009
- 2009-09-10 CN CN200910102276A patent/CN101708666A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173118A (en) * | 2010-12-09 | 2011-09-07 | 嘉兴学院 | Composite material for refractory brick mold and preparation method thereof |
| CN110801907A (en) * | 2019-10-11 | 2020-02-18 | 常熟市电力耐磨合金铸造有限公司 | High-wear-resistance composite casting hammer disc and preparation process thereof |
| CN110801907B (en) * | 2019-10-11 | 2021-05-04 | 常熟市电力耐磨合金铸造有限公司 | High-wear-resistance composite casting hammer disc and preparation process thereof |
| CN115058572A (en) * | 2022-06-13 | 2022-09-16 | 北京科技大学 | Stainless steel/carbon steel laminated composite board with interlayer and preparation method thereof |
| CN115058572B (en) * | 2022-06-13 | 2023-07-04 | 北京科技大学 | Stainless steel/carbon steel layered composite board added with intermediate layer and preparation method thereof |
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Application publication date: 20100519 |