CN101265556A - Method for producing ultra-high strength chromium series cast iron board band - Google Patents
Method for producing ultra-high strength chromium series cast iron board band Download PDFInfo
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- CN101265556A CN101265556A CNA2008100548580A CN200810054858A CN101265556A CN 101265556 A CN101265556 A CN 101265556A CN A2008100548580 A CNA2008100548580 A CN A2008100548580A CN 200810054858 A CN200810054858 A CN 200810054858A CN 101265556 A CN101265556 A CN 101265556A
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- cast iron
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- chromium series
- board band
- series cast
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Abstract
The invention relates to a method for producing an ultrahigh-strength chromium-based cast-iron slab band, which belongs to a method for producing an ultrahigh-strength chromium-based wearable cast-iron slab band by melt spun quenching, and the slab band can be folded in two by 180 DEG. The invention mainly solves the technical difficulties of low tensile strength, poor flexibility, and small range of use in the prior wearable material. In order to solve the technical difficulties, the invention adopts the technical proposal as follows: the method for producing the ultrahigh-strength chromium-based cast-iron slab band includes the following steps: 1) the ultrahigh-strength chromium-based cast-iron slab band contains principal contents by the weight percentages as follows: C: 2.4-3.6%, Cr: 5.0-28%, Si: 0.6-1.0%, Mn: 0.5-2.0%, Mo: 0.5-3.0%, Cu: 0.0-2.0%, Ni: 0.0-1.0%, and Fe, the rest; 2) the ultrahigh-strength chromium-based wearable cast-iron slab band is prepared by melt spun quenching; and 3) the ultrahigh-strength chromium-based wearable cast-iron slab band carries out vacuum heat treatment.
Description
Technical field
The present invention relates to a kind of production method of ultra-high strength chromium series cast iron board band, but it belongs to a kind of production method that adopts the melt-spun method to make the chromium family wear-resisting cast iron strip of 180 ° of superstrength and doublings.
Background technology
High-abrasive material commonly used at present has ordinary white cast iron, high mangaenese steel, ni-hard cast iron and Cr series white cast iron.Though these several high-abrasive material hardness height, wear resistance are good, because they belong to hard and fragile materials, its tensile strength is low, can only use as high-abrasive material, has limited use range.Therefore, they exist low, flexible difference of tensile strength and the little shortcoming of use range.
Summary of the invention
The chromium series cast iron board band that the objective of the invention is to solve above-mentioned technological difficulties and a kind of production is provided has the production method of the good ultra-high strength chromium series cast iron board band of superelevation tensile strength, high rigidity and flexibility.
The present invention for the technical scheme that solves above-mentioned technological difficulties and adopt is: the production method of ultra-high strength chromium series cast iron board band, it comprises the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:2.4～3.6%, Cr:5.0～28%, Si:0.6～1.0%, Mn:0.5～2.0%, Mo:0.5～3.0%, Cu:0.0～2.0%, Ni:0.0～1.0%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 100～200 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 1500～2000r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun chromium series cast iron plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment, promptly make ultra-high strength chromium series cast iron board band.
Vacuum heat treatment of the present invention is: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 200～600 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 10min～2h under argon shield.
Because the present invention has adopted technique scheme, therefore, compares with background technology, has following advantage.
1, use the melt-spun method to make the chromium family wear-resisting cast iron material of superstrength.
2, the chromium series cast iron board band of the present invention's production has the tensile strength of superelevation.Its tensile strength values is 3000-6000MPa after testing.
3, the chromium series cast iron board band of the present invention's production has very high rigidity.With its hardness of the overlapping back test of 10 laminate bands, its value is HRC60-67, far above the hardness of general high chromium series cast iron, and HRC50-58.
4, the chromium series cast iron board band of the present invention's production has good flexibility.Can beat joint with 180 ° of its doublings or as rope.
5, the chromium series cast iron board band of the present invention's production has the good corrosion energy as stainless steel.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
The production method of the ultra-high strength chromium series cast iron board band in the present embodiment, it comprises the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:2.4%, Cr:5.0%, Si:0.6%, Mn:0.5%, Mo:0.5%, Ni:1.0%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 100 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 1500r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 200 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 2h under argon shield, promptly makes ultra-high strength chromium series cast iron board band.
The thickness of the chromium series cast iron board band that obtains by aforesaid method is that 30 μ m～3mm, width are 2mm～1m.
Embodiment 2
The production method of the ultra-high strength chromium series cast iron board band in the present embodiment, it comprises the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:3.6%, Cr:28%, Si:1.0%, Mn:2.0%, Mo:3.0%, Cu:2.0%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 150 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 1800r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 400 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 1h under argon shield, promptly makes ultra-high strength chromium series cast iron board band.
The thickness of the chromium series cast iron board band that obtains by aforesaid method is that 30 μ m～3mm, width are 2mm～1m.
Embodiment 3
The production method of the ultra-high strength chromium series cast iron board band in the present embodiment, it comprises the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:3%, Cr:14%, Si:0.8%, Mn:1.2%, Mo:2.0%, Cu:1.0%, Ni:0.5%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 200 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 2000r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 600 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 10min under argon shield, promptly makes ultra-high strength chromium series cast iron board band.
The thickness of the chromium series cast iron board band that obtains by aforesaid method is that 30 μ m～3mm, width are 2mm～1m.
Embodiment 4
The production method of the ultra-high strength chromium series cast iron board band in the present embodiment, it comprises the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:2.8%, Cr:20%, Si:0.7%, Mn:1.0%, Mo:1.5%, Cu:1.5%, Ni:0.7%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 180 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 1700r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 300 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 1.5h under argon shield, promptly makes ultra-high strength chromium series cast iron board band.
The thickness of the chromium series cast iron board band that obtains by aforesaid method is that 30 μ m～3mm, width are 2mm～1m.
Claims (2)
1, a kind of production method of ultra-high strength chromium series cast iron board band is characterized in that: comprise the following steps:
1) main component of ultra-high strength chromium series cast iron board band is by weight percentage: C:2.4～3.6%, Cr:5.0～28%, Si:0.6～1.0%, Mn:0.5～2.0%, Mo:0.5～3.0%, Cu:0.0～2.0%, Ni:0.0～1.0%, and all the other are Fe;
2) make the fast quenching chromium series cast iron board band: at first use arc melting method to make alloy cast ingot, then alloy cast ingot is cut into small pieces and puts into the quartz crucible that has bottom outlet or end seam, then the two is placed in the vacuum chamber in the heat induced circle together, and the vacuum tightness of vacuum chamber is evacuated to 10
-5～10
-6Pa charges into rare gas element Ar then to normal pressure; By induction heating with alloy cast ingot fusing and be superheated to more than the liquidus line 100～200 ℃, with the argon gas of 1.065MPa pressure with alloy melt stitch from quartz crucible bottom bottom outlet or the end blow to rotating speed be on the cooling roller of 1500～2000r/min and with 10
5～10
6℃/solidification cooling of s makes melt-spun chromium series cast iron plate or band;
3) the fast quenching chromium series cast iron board band is carried out vacuum heat treatment, promptly make ultra-high strength chromium series cast iron board band.
2, the production method of ultra-high strength chromium series cast iron board band according to claim 1 is characterized in that: described vacuum heat treatment is: the melt-spun chromium series cast iron board band of making is placed in the vacuum heat treatment furnace, vacuum oven is evacuated to 3 * 10
-3Behind the Pa, applying argon gas then rises to vacuum oven 200～600 ℃ of required temperature to 0.1MPa, the melt-spun chromium series cast iron board band is carried out the thermal life processing of 10min～2h under argon shield.
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| CN2008100548580A CN101265556B (en) | 2008-04-18 | 2008-04-18 | Method for producing ultra-high strength chromium series cast iron board band |
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| CN2008100548580A CN101265556B (en) | 2008-04-18 | 2008-04-18 | Method for producing ultra-high strength chromium series cast iron board band |
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| CN101265556B CN101265556B (en) | 2010-04-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154584A (en) * | 2011-02-23 | 2011-08-17 | 周海龙 | Novel low-MnCrNi cast steel material and preparation method thereof |
| CN102296227A (en) * | 2010-06-22 | 2011-12-28 | 樊哲斌 | Novel material of low-chromium cast iron |
| CN102851570A (en) * | 2012-03-14 | 2013-01-02 | 宁波市圣盾机械制造有限公司 | High-carbon high-chromium refining plate casting of defibrator |
| CN104195420A (en) * | 2014-08-08 | 2014-12-10 | 安徽昱工耐磨材料科技有限公司 | High-chrome wear-resistant cast iron material and heat treatment method |
| CN105671416A (en) * | 2015-12-07 | 2016-06-15 | 铜陵市明诚铸造有限责任公司 | Low-density cast iron material for bearing of electric automobile |
| CN112126844A (en) * | 2020-09-22 | 2020-12-25 | 武汉科技大学 | High-chromium martensitic cast iron heat treatment method based on artificial aging |
| CN115537683A (en) * | 2021-06-30 | 2022-12-30 | 叶均蔚 | High-strength corrosion-resistant iron-chromium alloy block and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073639C (en) * | 1996-05-06 | 2001-10-24 | 广州有色金属研究院 | Medium-chrome silicone anti-corrosion wear-resisting cast iron and mfg. method thereof |
-
2008
- 2008-04-18 CN CN2008100548580A patent/CN101265556B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296227A (en) * | 2010-06-22 | 2011-12-28 | 樊哲斌 | Novel material of low-chromium cast iron |
| CN102154584A (en) * | 2011-02-23 | 2011-08-17 | 周海龙 | Novel low-MnCrNi cast steel material and preparation method thereof |
| CN102851570A (en) * | 2012-03-14 | 2013-01-02 | 宁波市圣盾机械制造有限公司 | High-carbon high-chromium refining plate casting of defibrator |
| CN104195420A (en) * | 2014-08-08 | 2014-12-10 | 安徽昱工耐磨材料科技有限公司 | High-chrome wear-resistant cast iron material and heat treatment method |
| CN105671416A (en) * | 2015-12-07 | 2016-06-15 | 铜陵市明诚铸造有限责任公司 | Low-density cast iron material for bearing of electric automobile |
| CN112126844A (en) * | 2020-09-22 | 2020-12-25 | 武汉科技大学 | High-chromium martensitic cast iron heat treatment method based on artificial aging |
| CN115537683A (en) * | 2021-06-30 | 2022-12-30 | 叶均蔚 | High-strength corrosion-resistant iron-chromium alloy block and application thereof |
| CN115537683B (en) * | 2021-06-30 | 2024-03-12 | 叶均蔚 | High-strength corrosion-resistant ferrochrome block and application thereof |
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|---|---|
| CN101265556B (en) | 2010-04-21 |
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Granted publication date: 20100421 Termination date: 20110418 |