CN102051557A - High chromium cast iron-high manganese steel composite liner plate and manufacturing method thereof - Google Patents
High chromium cast iron-high manganese steel composite liner plate and manufacturing method thereof Download PDFInfo
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- CN102051557A CN102051557A CN 201010583542 CN201010583542A CN102051557A CN 102051557 A CN102051557 A CN 102051557A CN 201010583542 CN201010583542 CN 201010583542 CN 201010583542 A CN201010583542 A CN 201010583542A CN 102051557 A CN102051557 A CN 102051557A
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Abstract
The invention relates to a high chromium cast iron-high manganese steel composite liner plate. The high chromium cast iron-high manganese steel composite liner plate is a metal plate which has the structure that a low-carbon high manganese steel wire mesh is embedded in high chromium cast iron. The manufacturing method mainly comprises the following steps: knitting a wire mesh by using low-carbon high manganese steel wires; putting the wire mesh in a 1-3% hydrochloric acid tank at room temperature, soaking for 5-10 minutes, taking out, and naturally drying in the air; putting the low-carbon high manganese steel wire mesh in a casting mold cavity, and casting a composite liner plate according to a conventional casting technique of high chromium cast iron; and heating the high chromium cast iron-high manganese steel composite liner plate to 1000-1100 DEG C, keeping the temperature for 3-5 hours, putting the high chromium cast iron-high manganese steel composite liner plate in a quenching oil at room temperature so as to cool the high chromium cast iron-high manganese steel composite liner plate to room temperature, heating the high chromium cast iron-high manganese steel composite liner plate to 250-320 DEG C, keeping the temperature for 4-6 hours, and cooling in the air to room temperature. The high chromium cast iron-high manganese steel composite liner plate provided by the invention has the advantages of high hardness [higher than HRC (Rockwell hardness) 65], favorable toughness (higher than 30J/cm<2>), excellent wear resistance and favorable shock resistance. The manufacturing method of the high chromium cast iron-high manganese steel composite liner plate is simple, and has the advantages of high yield and stable performance.
Description
Technical field the present invention relates to a kind of metal-base composites and manufacture method thereof, particularly rich chromium cast iron matrix material and manufacture method thereof.
The background technology rich chromium cast iron is because the hardness height has been proved to be one of classic high-abrasive material.In the mine, sector application such as cement, electric power, building materials and metallurgy is very extensive.This is because the tissue of rich chromium cast iron is made up of matrix and hard point, and hard point is given prominence to working-surface, is bearing the task of main opposing wearing and tearing, and matrix then provides support to the hard point and protects.But crisp, hard carbide has weakened the shock proof ability of rich chromium cast iron foundry goods matrix in the rich chromium cast iron, and its application under middle and high shock load condition is restricted, and the toughness that therefore improves rich chromium cast iron is the target that the researchist pursues for many years always.Around this problem, done a large amount of work both at home and abroad, its common ground is to attempt to change the shape of eutectic carbides, waits the toughness that improves rich chromium cast iron by changing aspects such as graphite form in the cast iron, refining eutectic carbide, raising crystal boundary metallurgical quality, choose reasonable matrix.From present result of study, the impact toughness of rich chromium cast iron is generally at 3-6J/cm
2Even, to dose rare earth, titanium, nickel etc. in a large number and improve the flexible noble element, its toughness does not have raising by a relatively large margin yet.Therefore, in order effectively to improve the toughness of rich chromium cast iron, in recent years, the matrix material that some rich chromium cast irons and other material have occurred, wherein, mainly being rich chromium cast iron and soft steel matrix material, is the patent of CN1099075A as publication number, and a kind of rich chromium cast iron/Mild Steel Wire composite abrasion resistance material is provided.Yet, because the fusing point higher (about 1520 ℃) of soft steel, and rich chromium cast iron fusing point itself lower (about 1230 ℃), both defective usually occurs fusing, and success ratio is reduced.Simultaneously, because after soft steel and the rich chromium cast iron fusion, it is organized as perlite, the general (25J/cm of toughness
2About), therefore, it is not a lot of that the toughness of this matrix material improves with respect to rich chromium cast iron.
Summary of the invention the object of the present invention is to provide a kind of rich chromium cast iron-high mangaenese steel composite liner and manufacture method thereof that has high rigidity and high tenacity concurrently.The present invention mainly is: composite liner is the metal sheet that is inlaid with the low-carbon high-manganese woven wire in the rich chromium cast iron; Its preparation method is: the low-carbon high-manganese woven wire is placed in the abrasion-proof backing block casting mold die cavity, the rich chromium cast iron molten iron is poured in the die cavity again, then foundry goods is carried out oil quenching and low-temperaturetempering processing.
Technical scheme of the present invention is as follows:
Rich chromium cast iron of the present invention-high mangaenese steel composite liner is the metal sheet that is inlaid with the low-carbon high-manganese woven wire in the rich chromium cast iron; Preferably the steel wire diameter of this high mangaenese steel woven wire is Φ 2-3mm, and grid is the square of length of side 30-40mm, whole silk screen undulate, and the distance between its crest and the trough is 10-20mm.
The preparation method of above-mentioned rich chromium cast iron-high mangaenese steel composite liner is as follows:
1, with low-carbon high-manganese braided steel wire silk screen, preferably the chemical ingredients of steel wire is (weight percent): C0.5-0.8, Mn 12.0-14.0, and all the other are iron and total amount less than 0.5% impurity.
2, above-mentioned silk screen is carried out surface activation process with the lower concentration acid solution, being about to silk screen, to put into the concentration of room temperature be the salt acid tank of 1-3%, soaked 5-10 minute, takes out seasoning in air then.
3, above-mentioned low-carbon high-manganese woven wire is placed in the casting mold die cavity, presses the conventional casting casting composite liner of rich chromium cast iron.The chemical ingredients of rich chromium cast iron is (wt%): C 2.5-3.5, and Cr 25.1-28.0, W2.0-3.0, Ni 2.1-3.0, Re-Mg 1.0-3.0, Si＜0.5, P＜0.04, S＜0.04, all the other are iron.
4, above-mentioned rich chromium cast iron-high mangaenese steel composite liner is heated to 1000-1100 ℃, is incubated after 3-5 hour, put into the quenching oil cool to room temperature of room temperature; After then the liner plate reheat being incubated 4-6 hour to 250-320 ℃, air cooling is to room temperature.The metal sheet that final acquisition low-carbon high-manganese woven wire and outside rich chromium cast iron fuse together.
The present invention compared with prior art has the following advantages:
1, the matrix material of rich chromium cast iron of the present invention and high mangaenese steel, the fusing point of high mangaenese steel are about 1360 ℃, and be suitable with the fusing point (about 1230 ℃) of rich chromium cast iron, and both are easier to be fused together when casting.
2, netted low-carbon high-manganese steel and rich chromium cast iron metallurgical melting together, rich chromium cast iron has higher hardness (more than the HRC65), and the fine (200J/cm of low-carbon high-manganese steel toughness
2More than), both mutual supplement with each other's advantages makes composite abrasion-proof inner plate have excellent wear-resisting and shock resistance, has avoided rich chromium cast iron foundry goods embrittlement phenomenon in use, and improve 80～600% than like product work-ing life.
3, this composite liner manufacturing process is simple, yield rate is high, stable performance, can be widely used in making the wear-resisting spare part of industries such as mine, coal, building materials and metallurgy.
Description of drawings
Fig. 1 is that rich chromium cast iron-high mangaenese steel composite liner master looks sectional schematic diagram.
Fig. 2 is that synoptic diagram cuts open in the three-dimensional office of rich chromium cast iron-high mangaenese steel composite liner.
Embodiment
In the synoptic diagram of rich chromium cast iron illustrated in figures 1 and 2-high mangaenese steel composite liner, rich chromium cast iron-high mangaenese steel composite liner is the metal sheet that is inlaid with low-carbon high-manganese woven wire 1 in the rich chromium cast iron 2; The steel wire diameter of this high mangaenese steel woven wire is Φ 2-3mm, and grid is the square of length of side 30-40mm, and whole silk screen undulate, and the distance between its crest and the trough is 10-20mm.
Embodiment 1:
With diameter is that the low-carbon high-manganese steel wire of Φ 3mm is weaved into silk screen, the chemical ingredients of steel wire (wt%) be C0.58 and Mn12.1, all the other for iron and total amount less than 0.5% impurity.The silk screen grid is the square of length of side 30mm, the silk screen undulate, and the distance between its crest and the trough is 12mm.The concentration that above-mentioned low-carbon high-manganese woven wire is put into room temperature is that 3% salt acid tank soaks 5min and carries out activation treatment, takes out seasoning in air then.Again above-mentioned silk screen is put into casting mold cavity, with chemical ingredients (wt%) is C 3.4, Cr 28.0, W 2.8, Ni 2.2, Re-Mg 1.3, the rich chromium cast iron water of Si 0.45, P 0.038, S 0.022, conventional casting by rich chromium cast iron is poured into a mould, and obtains being of a size of the casting composite liner of 200mm * 300mm * 20mm.Above-mentioned rich chromium cast iron/high mangaenese steel compound casting liner plate is heated to 1030 ℃, is incubated after 3.5 hours, put into the quenching oil cool to room temperature of room temperature; With liner plate reheat to 310 ℃ insulation after 5 hours, air cooling is to room temperature then.Final low-carbon high-manganese woven wire and the fused metal sheet together of outside rich chromium cast iron of obtaining.Above-mentioned composite liner uses in the equipment of ore system is carried at the harbour, Qinhuangdao, and compares with famous Sweden's Hardox500 liner plate, and improve 80% than Hardox500 liner plate the work-ing life of this composite abrasion-proof inner plate of result, obtains good result of use.
Embodiment 2:
With diameter dimension is that the low-carbon high-manganese steel wire of Φ 2mm is weaved into silk screen, the chemical ingredients of steel wire (wt%) be C0.77 and Mn13.8, all the other for iron and total amount less than 0.5% impurity.The silk screen grid is the square of length of side 35mm, the silk screen undulate, and the distance between its crest and the trough is 20mm.The concentration that above-mentioned low-carbon high-manganese woven wire is put into room temperature is that 1.5% salt acid tank soaks 10min and carries out activation treatment, takes out seasoning in air then.Again above-mentioned silk screen is put into casting mold cavity, with chemical ingredients (wt%) is C 2.8, Cr25.8, W 2.1, Ni 2.5, Re-Mg 2.0, the rich chromium cast iron water of Si 0.4, P 0.03, S 0.04, conventional casting by rich chromium cast iron is poured into a mould, and obtains being of a size of the casting composite liner of 400mm * 400mm * 30mm.Rich chromium cast iron/high mangaenese steel compound casting liner plate is heated to 1050 ℃, is incubated after 5 hours, put into the quenching oil cool to room temperature of room temperature; With liner plate reheat to 300 ℃ insulation after 4.5 hours, air cooling is to room temperature then.Final low-carbon high-manganese woven wire and the fused metal sheet together of outside rich chromium cast iron of obtaining.Above-mentioned composite liner uses in the equipment of harbour, Huanghua conveying coal system, and compares with 16Mn steel plate liner plate, and improve 6 times than 16Mn steel plate liner plate the work-ing life of this composite abrasion-proof inner plate of result, obtains good result of use.
Embodiment 3: with diameter dimension is that the low-carbon high-manganese steel wire of Φ 3mm is weaved into silk screen, the chemical ingredients of steel wire (wt%) be C0.7 and Mn13.1, all the other for iron and total amount less than 0.5% impurity.The silk screen grid is the square of length of side 35mm, the silk screen undulate, and the distance between its crest and the trough is 15mm.The concentration that above-mentioned low-carbon high-manganese woven wire is put into room temperature is that 2% salt acid tank soaks 8min and carries out activation treatment, takes out seasoning in air then.Again above-mentioned silk screen is put into casting mold cavity, with chemical ingredients (wt%) is C 3.1, Cr 26.5, W 2.5, Ni 2.9, Re-Mg 2.7, the rich chromium cast iron water of Si 0.33, P 0.038, S 0.037, conventional casting by rich chromium cast iron is poured into a mould, and obtains being of a size of the casting composite liner of 200mm * 200mm * 25mm.Rich chromium cast iron/high mangaenese steel compound casting liner plate is heated to 1080 ℃, is incubated after 4 hours, put into the quenching oil cool to room temperature of room temperature; With liner plate reheat to 260 ℃ insulation after 6 hours, air cooling is to room temperature then.Final low-carbon high-manganese woven wire and the fused metal sheet together of outside rich chromium cast iron of obtaining.Above-mentioned composite liner uses in the ball mill of manufacture of cement factory, and compares with casting high mangaenese steel (ZGMn13) liner plate, and improve 2.2 times than ZGMn13 steel liner plate the work-ing life of this composite abrasion-proof inner plate of result, obtains good result of use.
Claims (8)
1. rich chromium cast iron-high mangaenese steel composite liner, it is characterized in that: rich chromium cast iron-high mangaenese steel composite liner is the metal sheet that is inlaid with the low-carbon high-manganese woven wire in the rich chromium cast iron.
2. rich chromium cast iron according to claim 1-high mangaenese steel composite liner is characterized in that: above-mentioned whole silk screen undulate.
3. rich chromium cast iron according to claim 1 and 2-high mangaenese steel composite liner is characterized in that: the crest of silk screen and the distance between the trough are 10-20mm.
4. rich chromium cast iron according to claim 3-high mangaenese steel composite liner is characterized in that: the steel wire diameter of this high mangaenese steel woven wire is Φ 2-3mm.
5. rich chromium cast iron according to claim 4-high mangaenese steel composite liner is characterized in that: above-mentioned grid is the square of length of side 30-40mm.
6. aforesaid right requires the manufacture method of rich chromium cast iron-high mangaenese steel composite liner of 1, it is characterized in that:
(1) with low-carbon high-manganese braided steel wire silk screen,
(2) concentration of silk screen being put into room temperature is the salt acid tank of 1-3%, soaks 5-10 minute, takes out seasoning in air,
(3) above-mentioned low-carbon high-manganese woven wire is placed in the casting mold die cavity, presses the conventional casting casting composite liner of rich chromium cast iron,
(4) above-mentioned rich chromium cast iron-high mangaenese steel composite liner is heated to 1000-1100 ℃, is incubated after 3-5 hour, put into the quenching oil cool to room temperature of room temperature, and then with the liner plate reheat to 250-320 ℃ of insulation
After 4-6 hour, air cooling is to room temperature.
7. the manufacture method of rich chromium cast iron according to claim 6-high mangaenese steel composite liner is characterized in that: the weight percent of low-carbon high-manganese steel steel wire chemical ingredients is as follows: C 0.5-0.8, and Mn 12.0-14.0,
All the other are iron and total amount less than 0.5% impurity.
8. the manufacture method of rich chromium cast iron according to claim 6-high mangaenese steel composite liner, it is characterized in that: the weight percent of rich chromium cast iron chemical ingredients is as follows: C 2.5-3.5, Cr 25.1-28.0, W2.0-3.0, Ni 2.1-3.0, Re-Mg 1.0-3.0, Si＜0.5, P＜0.04, S＜0.04, all the other are iron.
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| CN2010105835428A CN102051557B (en) | 2010-12-10 | 2010-12-10 | High chromium cast iron-high manganese steel composite liner plate and manufacturing method thereof |
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| CN2010105835428A CN102051557B (en) | 2010-12-10 | 2010-12-10 | High chromium cast iron-high manganese steel composite liner plate and manufacturing method thereof |
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| CN102051557B CN102051557B (en) | 2012-11-21 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303212A (en) * | 2011-06-24 | 2012-01-04 | 成都申信达机械有限公司 | Process for manufacturing lining board of wet-spraying machine |
| CN104087848A (en) * | 2014-06-26 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Compound type wear-resisting lining plate |
| CN104098045A (en) * | 2014-07-10 | 2014-10-15 | 安徽通润汽车零部件有限公司 | Crane boom of hydraulic jack |
| CN106555926A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The square wave foam web steel plate lighter than water |
| CN106555924A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The light connecting leg foam web steel plate of resistance Lapie's water |
| CN106555927A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The string ripple foam web steel plate lighter than water |
| CN106555925A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The light company's bubble foam web steel plate of resistance Lapie's water |
| CN110077878A (en) * | 2019-03-28 | 2019-08-02 | 无锡市广润金属制品有限公司 | A kind of GR460 hot-galvanized steel band |
| CN114395666A (en) * | 2021-12-31 | 2022-04-26 | 安徽华聚新材料有限公司 | Quenching process of bimetal composite lining plate |
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| CN2579515Y (en) * | 2002-09-29 | 2003-10-15 | 河南科技大学 | Double metal composite jaw plate |
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Patent Citations (4)
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| JPS52103324A (en) * | 1976-02-26 | 1977-08-30 | Kawasaki Heavy Ind Ltd | Compound material of antiiabrasion and shockkresisting |
| CN2579515Y (en) * | 2002-09-29 | 2003-10-15 | 河南科技大学 | Double metal composite jaw plate |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303212A (en) * | 2011-06-24 | 2012-01-04 | 成都申信达机械有限公司 | Process for manufacturing lining board of wet-spraying machine |
| CN104087848A (en) * | 2014-06-26 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Compound type wear-resisting lining plate |
| CN104098045A (en) * | 2014-07-10 | 2014-10-15 | 安徽通润汽车零部件有限公司 | Crane boom of hydraulic jack |
| CN106555926A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The square wave foam web steel plate lighter than water |
| CN106555924A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The light connecting leg foam web steel plate of resistance Lapie's water |
| CN106555927A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The string ripple foam web steel plate lighter than water |
| CN106555925A (en) * | 2015-09-29 | 2017-04-05 | 廖树汉 | The light company's bubble foam web steel plate of resistance Lapie's water |
| CN110077878A (en) * | 2019-03-28 | 2019-08-02 | 无锡市广润金属制品有限公司 | A kind of GR460 hot-galvanized steel band |
| CN110077878B (en) * | 2019-03-28 | 2020-11-03 | 无锡市广润金属制品有限公司 | GR460 hot-dip galvanized steel strip |
| CN114395666A (en) * | 2021-12-31 | 2022-04-26 | 安徽华聚新材料有限公司 | Quenching process of bimetal composite lining plate |
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| Publication number | Publication date |
|---|---|
| CN102051557B (en) | 2012-11-21 |
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