CN102031457A - Yttrium-containing low-alloy steel plate hammer - Google Patents
Yttrium-containing low-alloy steel plate hammer Download PDFInfo
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- CN102031457A CN102031457A CN 201010600993 CN201010600993A CN102031457A CN 102031457 A CN102031457 A CN 102031457A CN 201010600993 CN201010600993 CN 201010600993 CN 201010600993 A CN201010600993 A CN 201010600993A CN 102031457 A CN102031457 A CN 102031457A
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- yttrium
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Abstract
The invention relates to a yttrium-containing low-alloy steel plate hammer, which comprises the following chemical components in percentage by weight: 0.01 to 0.2 percent of Y, 0.1 to 1.3 percent of C, 0.1 to 2 percent of Si, 0.5 to 2 percent of Cr, 0.5 to 4 percent of Mn, 0.1 to 1 percent of Ti, 0.1 to 1 percent of Nb, 0.05 to 0.5 percent of B and the balance of Fe. A preparation method comprises the following steps of: preparing materials according to the weight percentage, namely preparing 0.7 to 4.0 percent of ferrochrome, 0.7 to 7.0 percent of ferromanganese, 0.3 to 4.0 percent of ferrotitanium, 0.3 to 3.5 percent of ferroniobium, 0.1 to 1.0 percent of ferroboron, 0 to 25 percent of cast iron and the balance of scrap steel; smelting the ingredients in a medium-frequency induction furnace to form molten steel, and modifying by adding a yttrium-base heavy rare earth steel modificator; and finally pouring in a water glass sand mould for forming. In the yttrium-containing low-alloy steel plate hammer, due to the addition of rare-earth element yttrium in raw materials, the abrasive resistance and impact resistance of the plate hammer are improved greatly.
Description
Technical field
The present invention relates to a kind of yttrium low alloy steel bar that contains.
Technical background
Rich chromium cast iron is one of important high-abrasive material, is widely used in machinery, metallurgy, mining and mineral products processing and other fields.Present high ferrochrome bar use range is wider, is exactly poor toughness but high ferrochrome bar has a shortcoming, easy fracture in the use, easier fracture under the HI high impact working condition especially.Therefore the price height of high ferrochrome cast panel hammer uses the unit cost of rich chromium cast iron bar also just high.
Technical background
Rich chromium cast iron is one of important high-abrasive material, is widely used in machinery, metallurgy, mining and mineral products processing and other fields.Present high ferrochrome bar use range is wider, is exactly poor toughness but high ferrochrome bar has a shortcoming, easy fracture in the use, easier fracture under the HI high impact working condition especially.Therefore the price height of high ferrochrome cast panel hammer uses the unit cost of rich chromium cast iron bar also just high.
Summary of the invention
Purpose of the present invention just provides that a kind of wear resistance is good, cost is low contains yttrium low alloy steel bar.
The yttrium low alloy steel bar that contains of the present invention, its Chemical Composition is (weight percent): Y 0.01～0.2%, C 0.1～1.3%, Si 0.1～2%, Cr 0.5～2%, Mn 0.5～4%, Ti 0.1～1%, Nb 0.1～1%, B 0.05-0.5%, Fe surplus.
The preparation method who contains yttrium low alloy steel bar of the present invention is, prepare burden by weight percentage: ferrochrome 0.7-4.0%, ferromanganese 0.7-7.0%, ferrotianium 0.3-4.0%, ferro-niobium 0.3-3.5%, ferro-boron 0.1-1.0%, pig iron 0-25%, all the other are steel scrap, batching is smelted into molten steel in medium-frequency induction furnace, adding Y content then is 30-90%, C content 0.01-0.5%, surplus is that the yttrium-base heavy rare earth steel alterant of Fe is made rotten processing the, casting in water glass sand mold at last, casting to contain yttrium low alloy steel bar be cast alloy, again through quenching, temper is salable product.
The yttrium low alloy steel bar that contains of the present invention owing to be added with rare earth element yttrium in the starting material, has improved the wear resistance and the shock resistance of bar greatly.
Summary of the invention
Purpose of the present invention just provides that a kind of wear resistance is good, cost is low contains yttrium low alloy steel bar.
The yttrium low alloy steel bar that contains of the present invention, its Chemical Composition is (weight percent): Y 0.01～0.2%, C 0.1～1.3%, Si 0.1～2%, Cr 0.5～2%, Mn 0.5～4%, Ti 0.1～1%, Nb 0.1～1%, B 0.05-0.5%, Fe surplus.
The preparation method who contains yttrium low alloy steel bar of the present invention is, prepare burden by weight percentage: ferrochrome 0.7-4.0%, ferromanganese 0.7-7.0%, ferrotianium 0.3-4.0%, ferro-niobium 0.3-3.5%, ferro-boron 0.1-1.0%, pig iron 0-25%, all the other are steel scrap, batching is smelted into molten steel in medium-frequency induction furnace, adding Y content then is 30-90%, C content 0.01-0.5%, surplus is that the yttrium-base heavy rare earth steel alterant of Fe is made rotten processing the, casting in water glass sand mold at last, casting to contain yttrium low alloy steel bar be cast alloy, again through quenching, temper is salable product.
The yttrium low alloy steel bar that contains of the present invention owing to be added with rare earth element yttrium in the starting material, has improved the wear resistance and the shock resistance of bar greatly.
Embodiment
Embodiment 1:
A kind of preparation method who contains yttrium low alloy steel bar,
1, melting equipment: 250 kilograms of medium-frequency induction furnaces.
2, raw material Chemical Composition and proportioning (weight %)
Table 1: embodiment two raw materials and proportioning
| Raw material | Main component content (%) | Weight (kg) |
| Yttrium-base heavy rare earth steel alterant | Y:65 | 1.25 |
| The pig iron | C:4.06、Si:1.20 | 35 |
| Steel scrap | C:0.35、Si:0.35 | 200 |
| Medium carbon ferrochrome | C:2.21、Cr:63.5 | 8.2 |
| Ferromanganese | Mn：80.2 | 2.2 |
| Ferrotianium | Ti:29 | 1.55 |
| Ferro-niobium | Nb：60.5 | 1.3 |
| Ferro-boron | B:18 | 0.75 |
3, moulding
Adopt CO2 petrifying water glass sand mold.
4, melting, cast, thermal treatment
Will table 1 raw material add fusing in the medium-frequency induction furnace, moltenly skim after clear, improve temperature and come out of the stove to 1450-1500 ℃, after composition chemical examination in stokehold is qualified, add yttrium-base heavy rare earth steel alterant in the ladle, the processing of going bad pours into die cavity then.After treating the foundry goods cooling, shake out sand removal, cutting dead head, the check foundry goods has zero defect, then the salable product shove charge is advanced stove and quenches, and tempering gets final product again.
5, mechanical property detects
| Title | Impact value a KJ/cm -2 | Hardness HRC |
| Rich chromium cast iron | 6.78 5.69 6.66 | 58 56 58 |
| The gadolinium-containing alloy steel | 18.78 19.21 18.56 | 56 55 58 |
From above-mentioned data, the performance that contains yttrium low alloy steel bar obviously is better than high ferrochrome bar.
6, result of use one: a kind of yttrium low alloy steel bar that contains uses in the building material industry installation.
Equipment: two PE1214 hammer mills.
Installation, use: adorn 8 for one and contain yttrium low alloy steel bar, another adorns 8 high chromium plate hammers, use the broken building stones of back statistics: amount to 14425 cubes of broken building stones with containing yttrium low alloy steel bar, amount to 10738 cubes of broken building stones with high chromium plate hammer, than all hammering 3687 cubes of how broken building stones into shape with high chromium plate, production efficiency improves 34.3%, obtains tangible economic benefit, and the unit cost ratio makes and rich chromium cast iron is saved 3000-5000 unit/ton.
7, result of use two: a kind of yttrium low alloy steel bar that contains uses in the mining machinery installation.
Equipment: two PE1210 hammer mills.
Installation, use: adorn 8 for one and contain yttrium low alloy steel bar, another adorns 8 high chromium plate hammers, use the broken iron ore of back statistics: amount to 8596 cubes of broken building stones with containing yttrium low alloy steel bar, amount to 6675 cubes of broken building stones with high chromium plate hammer bar, than all hammering 1921 cubes of how broken iron ores into shape with high chromium plate, production efficiency improves 28.8%, obtain tangible economic benefit, and the unit cost ratio makes and the rich chromium cast iron saving
Technical field
The present invention relates to a kind of yttrium low alloy steel bar that contains.
Embodiment
Embodiment 1:
A kind of preparation method who contains yttrium low alloy steel bar,
1, melting equipment: 250 kilograms of medium-frequency induction furnaces.
2, raw material Chemical Composition and proportioning (weight %)
Table 1: embodiment two raw materials and proportioning
| Raw material | Main component content (%) | Weight (kg) |
| Yttrium-base heavy rare earth steel alterant | Y:65 | 1.25 |
| The pig iron | C:4.06、Si:1.20 | 35 |
| Steel scrap | C:0.35、Si:0.35 | 200 |
| Medium carbon ferrochrome | C:2.21、Cr:63.5 | 8.2 |
| Ferromanganese | Mn：80.2 | 2.2 |
| Ferrotianium | Ti:29 | 1.55 |
| Ferro-niobium | Nb：60.5 | 1.3 |
| Ferro-boron | B:18 | 0.75 |
3, moulding
Adopt CO2 petrifying water glass sand mold.
4, melting, cast, thermal treatment
Will table 1 raw material add fusing in the medium-frequency induction furnace, moltenly skim after clear, improve temperature and come out of the stove to 1450-1500 ℃, after composition chemical examination in stokehold is qualified, add yttrium-base heavy rare earth steel alterant in the ladle, the processing of going bad pours into die cavity then.After treating the foundry goods cooling, shake out sand removal, cutting dead head, the check foundry goods has zero defect, then the salable product shove charge is advanced stove and quenches, and tempering gets final product again.
5, mechanical property detects
| Title | Impact value a KJ/cm -2 | Hardness HRC |
| Rich chromium cast iron | 6.78 5.69 6.66 | 58 56 58 |
| The gadolinium-containing alloy steel | 18.78 19.21 18.56 | 56 55 58 |
From above-mentioned data, the performance that contains yttrium low alloy steel bar obviously is better than high ferrochrome bar.
6, result of use one: a kind of yttrium low alloy steel bar that contains uses in the building material industry installation.
Equipment: two PE1214 hammer mills.
Installation, use: adorn 8 for one and contain yttrium low alloy steel bar, another adorns 8 high chromium plate hammers, use the broken building stones of back statistics: amount to 14425 cubes of broken building stones with containing yttrium low alloy steel bar, amount to 10738 cubes of broken building stones with high chromium plate hammer, than all hammering 3687 cubes of how broken building stones into shape with high chromium plate, production efficiency improves 34.3%, obtains tangible economic benefit, and the unit cost ratio makes and rich chromium cast iron is saved 3000-5000 unit/ton.
7, result of use two: a kind of yttrium low alloy steel bar that contains uses in the mining machinery installation.
Equipment: two PE1210 hammer mills.
Installation, use: adorn 8 for one and contain yttrium low alloy steel bar, another adorns 8 high chromium plate hammers, use the broken iron ore of back statistics: amount to 8596 cubes of broken building stones with containing yttrium low alloy steel bar, amount to 6675 cubes of broken building stones with high chromium plate hammer bar, than all hammering 1921 cubes of how broken iron ores into shape with high chromium plate, production efficiency improves 28.8%, obtains tangible economic benefit, and the unit cost ratio makes and rich chromium cast iron is saved 1500-3500 unit/ton.1500-3500 unit/ton.
Claims (2)
1. one kind contains yttrium low alloy steel bar, it is characterized in that: its Chemical Composition is (weight percent):
Y 0.01～0.2%, C 0.1～1.3%, Si 0.1～2%, Cr 0.5～2%, Mn 0.5～4%, Ti 0.1～1%, Nb 0.1～1%, B 0.05-0.5%, Fe surplus.
2. the yttrium low alloy steel bar that contains as claimed in claim 1, its preparation method is: prepare burden by weight percentage: ferrochrome 0.7-4.0%, ferromanganese 0.7-7.0%, ferrotianium 0.3-4.0%, ferro-niobium 0.3-3.5%, ferro-boron 0.1-1.0%, pig iron 0-25%, all the other are steel scrap, batching is smelted into molten steel in medium-frequency induction furnace, adding Y content then is that 30-90%, C content 0.01-0.5%, surplus are rotten processing of yttrium-base heavy rare earth steel alterant work of Fe, and casting in water glass sand mold is salable product through quenching, temper more at last.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010600993 CN102031457A (en) | 2010-12-23 | 2010-12-23 | Yttrium-containing low-alloy steel plate hammer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010600993 CN102031457A (en) | 2010-12-23 | 2010-12-23 | Yttrium-containing low-alloy steel plate hammer |
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| CN102031457A true CN102031457A (en) | 2011-04-27 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627978A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for niobium-containing mine hammerhead and preparation method thereof |
| CN103627981A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy material for crusher hammerhead and preparation method thereof |
| CN103627988A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for high-hardness anti-rupture hammerhead and preparation method thereof |
| CN103627992A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Wear-resistant medium-manganese steel hammerhead material and preparation method thereof |
| CN103628000A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for tungsten-containing mine hammerhead and preparation method thereof |
| CN103627993A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel hammerhead material for small-size crusher and preparation method thereof |
| CN103627995A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel hammerhead material for medium-size crusher and preparation method thereof |
| CN103627999A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Medium-manganese steel hammerhead material for mines and preparation method thereof |
| CN103627985A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for crushing hammerhead for tungsten/yttrium-containing ores and preparation method thereof |
| CN103627966A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | High-hardness medium-manganese steel hammerhead material and preparation method thereof |
| CN103627990A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Wear-resistant stainless steel hammerhead material for mines and preparation method thereof |
| CN103627998A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for plate hammer for yttrium-containing mines and preparation method thereof |
| CN103643162A (en) * | 2013-11-11 | 2014-03-19 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for hammerhead of pendulum for mine and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627978A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for niobium-containing mine hammerhead and preparation method thereof |
| CN103627981A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy material for crusher hammerhead and preparation method thereof |
| CN103627988A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for high-hardness anti-rupture hammerhead and preparation method thereof |
| CN103627992A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Wear-resistant medium-manganese steel hammerhead material and preparation method thereof |
| CN103628000A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for tungsten-containing mine hammerhead and preparation method thereof |
| CN103627993A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel hammerhead material for small-size crusher and preparation method thereof |
| CN103627995A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel hammerhead material for medium-size crusher and preparation method thereof |
| CN103627999A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Medium-manganese steel hammerhead material for mines and preparation method thereof |
| CN103627985A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for crushing hammerhead for tungsten/yttrium-containing ores and preparation method thereof |
| CN103627966A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | High-hardness medium-manganese steel hammerhead material and preparation method thereof |
| CN103627990A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Wear-resistant stainless steel hammerhead material for mines and preparation method thereof |
| CN103627998A (en) * | 2013-11-11 | 2014-03-12 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for plate hammer for yttrium-containing mines and preparation method thereof |
| CN103643162A (en) * | 2013-11-11 | 2014-03-19 | 马鞍山市恒毅机械制造有限公司 | Alloy steel material for hammerhead of pendulum for mine and preparation method thereof |
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Application publication date: 20110427 |