CN107604265A - Wear-resisting dilval - Google Patents
Wear-resisting dilval Download PDFInfo
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- CN107604265A CN107604265A CN201711017928.0A CN201711017928A CN107604265A CN 107604265 A CN107604265 A CN 107604265A CN 201711017928 A CN201711017928 A CN 201711017928A CN 107604265 A CN107604265 A CN 107604265A
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- dilval
- resisting
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Abstract
The invention discloses a kind of wear-resisting dilval, it is made up of the raw material of following weight percentage：Ni28 30%, C6.4%, Si0.5 1.5%, Sr0.25%, Bi0.05%, Cr1 2.5%, Co0.5 1.0%, surplus are iron.The density and purity of the present invention is high, and intensity, toughness and abrasive resistance are good, and preparation method is simple, and production efficiency is high, and production cost is low, and effects of energy saving and emission reduction is notable.
Description
Technical field
The present invention relates to a kind of ferroalloy, particularly a kind of wear-resisting dilval.
Background technology
Dilval is a kind of important alloy material, and it is using quite varied.Nickel acting predominantly in stainless steel
The crystal structure of steel is changed in it, a main cause for increasing nickel in stainless steel is exactly to form austenitic crystal structure,
So as to improve the attribute of the stainless steels such as plasticity, weldability and toughness, so nickel is referred to as austenite former.Nickel
Ferroalloy is suitable in automobile, locomotive and machine-building.Most important nickeliferous steel grade and maximum user are stainless steel
With heat-resisting special steel.Nickel has slight graphitizing in cast iron, can stabilizing pearlite and reduction ferrite content.Therefore cast
Nickel in iron helps to obtain uniformly and the structure and good performance of one.The electrodeposition technology of current electroforming Ni-Fe alloy
Also many weak points, as concentration of metal ions is bigger than normal, production cost is higher, and electrolyte property is not sufficiently stable, inoxidizability
Can be relatively low, deposition layer hardness is high, poor toughness.
The content of the invention
It is an object of the present invention to provide a kind of wear-resisting dilval.The density and purity of the present invention is high, intensity, toughness
Good with abrasive resistance, preparation method is simple, and production efficiency is high, and production cost is low, and effects of energy saving and emission reduction is notable.
Technical scheme：Wear-resisting dilval, it is made up of the raw material of following weight percentage：Ni28-30%,
C6.4%, Si0.5-1.5%, Sr0.25%, Bi0.05%, Cr1-2.5%, Co0.5-1.0%, surplus are iron.
In foregoing wear-resisting dilval, it is made up of the raw material of following weight parts：Ni29%, C6.4%, Si1.2%,
Sr0.25%, Bi0.05%, Cr2%, Co0.75%, surplus are iron.
In foregoing wear-resisting dilval, the preparation method of the wear-resisting dilval comprises the following steps：
(1) it is 6-8mm nickel oxide ores to be crushed into granularity, then adds coal dust, 1.8% bonding of its weight 12%
Agent, 2% pulverized limestone, the mixing of 1.2% water cobaltous sulfate, are pressed into pelletizing, manufactured pelletizing are sent into rotary hearth furnace and gone back
Original obtains metallized pellet, and reduction temperature is 1450 DEG C, and the recovery time is 2.5 hours；
(2) metallized pellet is put into vacuum melting furnace, melting 5h under the conditions of being 890-910 DEG C in temperature；
(3) for Raise vacuum melting in-furnace temperature to 1120-1150 DEG C, keeping temperature is constant again, melting 1.5h；
(4) aluminium alloy is cast for dilval body, obtained alloy body is subjected to solution treatment and Ageing Treatment successively,
Obtain wear-resisting dilval.
In foregoing wear-resisting dilval, during the solution treatment, solid solubility temperature is 670 DEG C, and solution time is 1 hour,
The type of cooling is water cooling, and during Ageing Treatment, 480 DEG C of aging temp, aging time is 40 hours, and the type of cooling is air cooling.
Compared with prior art, density of the invention and purity are high, and intensity, toughness and abrasive resistance are good, preparation method letter
Single, production efficiency is high, and with technique pelletizings such as nickel oxide ores and coal dusts in raw material, the recovery time is short, and energy consumption is low, and dust is few,
The useful element rate of recovery is high, use two-step sintering method, deformation of the control dilval in melting, raising dilval during melting
Density, purity, the various performance requirements such as internal microstructure, production cost is low, and effects of energy saving and emission reduction is notable.Dilval is cast
State dense structure, fine grain is uniform, and fusing point is low, and diffusion is high, and deoxidation effect is good；By to as cast condition dilval carry out solid solution and
Ageing Treatment, precipitation hardened effect is played, and preparation method is simple, and cost is low.
Embodiment
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
Embodiment.Wear-resisting dilval, it is characterised in that be made up of the raw material of following weight percentage：Ni28-30%,
C6.4%, Si0.5-1.5%, Sr0.25%, Bi0.05%, Cr1-2.5%, Co0.5-1.0%, surplus are iron.
It is made up of the raw material of following weight parts：Ni29%, C6.4%, Si1.2%, Sr0.25%, Bi0.05%,
Cr2%, Co0.75%, surplus are iron.
The preparation method of the wear-resisting dilval comprises the following steps：
(1) it is 6-8mm nickel oxide ores to be crushed into granularity, then adds coal dust, 1.8% bonding of its weight 12%
Agent, 2% pulverized limestone, the mixing of 1.2% water cobaltous sulfate, are pressed into pelletizing, manufactured pelletizing are sent into rotary hearth furnace and gone back
Original obtains metallized pellet, and reduction temperature is 1450 DEG C, and the recovery time is 2.5 hours；
(2) metallized pellet is put into vacuum melting furnace, melting 5h under the conditions of being 890-910 DEG C in temperature；
(3) for Raise vacuum melting in-furnace temperature to 1120-1150 DEG C, keeping temperature is constant again, melting 1.5h；
(4) aluminium alloy is cast for dilval body, obtained alloy body is subjected to solution treatment and Ageing Treatment successively,
Obtain wear-resisting dilval.
During the solution treatment, solid solubility temperature is 670 DEG C, and solution time is 1 hour, and the type of cooling is water cooling, at timeliness
During reason, 480 DEG C of aging temp, aging time is 40 hours, and the type of cooling is air cooling.
The density and purity of the present invention is high, and intensity, toughness and abrasive resistance are good, and preparation method is simple, and production efficiency is high,
With technique pelletizings such as nickel oxide ores and coal dusts in raw material, the recovery time is short, and energy consumption is low, and dust is few, and the useful element rate of recovery is high,
Two-step sintering method is used during melting, controls deformation of the dilval in melting, improves the density, purity, inside of dilval
The various performance requirements such as microscopic structure, production cost is low, and effects of energy saving and emission reduction is notable.Dilval as-cast structure is fine and close, fine grain
Uniformly, fusing point is low, and diffusion is high, and deoxidation effect is good；By being dissolved to as cast condition dilval and Ageing Treatment, analysis is played
Go out the effect mutually strengthened, and preparation method is simple, and cost is low.
Claims (4)
1. wear-resisting dilval, it is characterised in that be made up of the raw material of following weight percentage：Ni28-30%, C6.4%,
Si0.5-1.5%, Sr0.25%, Bi0.05%, Cr1-2.5%, Co0.5-1.0%, surplus are iron.
2. wear-resisting dilval according to claim 1, it is characterised in that be made up of the raw material of following weight parts：
Ni29%, C6.4%, Si1.2%, Sr0.25%, Bi0.05%, Cr2%, Co0.75%, surplus are iron.
3. wear-resisting dilval according to claim 1 or 2, it is characterised in that the preparation side of the wear-resisting dilval
Method comprises the following steps：
(1) it is 6-8mm nickel oxide ores to be crushed into granularity, then add the coal dust of its weight 12%, 1.8% bonding agent,
2% pulverized limestone, the mixing of 1.2% water cobaltous sulfate, are pressed into pelletizing, manufactured pelletizing are sent into rotary hearth furnace and reduce
To metallized pellet, reduction temperature is 1450 DEG C, and the recovery time is 2.5 hours；
(2) metallized pellet is put into vacuum melting furnace, melting 5h under the conditions of being 890-910 DEG C in temperature；
(3) for Raise vacuum melting in-furnace temperature to 1120-1150 DEG C, keeping temperature is constant again, melting 1.5h；
(4) aluminium alloy is cast for dilval body, obtained alloy body is subjected to solution treatment and Ageing Treatment successively, obtained
Wear-resisting dilval.
4. wear-resisting dilval according to claim 3, it is characterised in that：During the solution treatment, solid solubility temperature 670
DEG C, solution time is 1 hour, and the type of cooling is water cooling, and during Ageing Treatment, 480 DEG C of aging temp, aging time is 40 hours,
The type of cooling is air cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017928.0A CN107604265A (en) | 2017-10-27 | 2017-10-27 | Wear-resisting dilval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017928.0A CN107604265A (en) | 2017-10-27 | 2017-10-27 | Wear-resisting dilval |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107604265A true CN107604265A (en) | 2018-01-19 |
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ID=61080106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711017928.0A Withdrawn CN107604265A (en) | 2017-10-27 | 2017-10-27 | Wear-resisting dilval |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630566A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Ferro-nickel alloy and preparation method thereof |
| CN105316559A (en) * | 2014-07-17 | 2016-02-10 | 匡永刚 | Manufacturing method of nickel-iron alloy |
| CN105648323A (en) * | 2016-01-13 | 2016-06-08 | 铜陵百荣新型材料铸件有限公司 | Ferronickel material and preparation technique thereof |
| CN106811668A (en) * | 2015-11-30 | 2017-06-09 | 侯霞 | Dilval manufacture method |
-
2017
- 2017-10-27 CN CN201711017928.0A patent/CN107604265A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316559A (en) * | 2014-07-17 | 2016-02-10 | 匡永刚 | Manufacturing method of nickel-iron alloy |
| CN104630566A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Ferro-nickel alloy and preparation method thereof |
| CN106811668A (en) * | 2015-11-30 | 2017-06-09 | 侯霞 | Dilval manufacture method |
| CN105648323A (en) * | 2016-01-13 | 2016-06-08 | 铜陵百荣新型材料铸件有限公司 | Ferronickel material and preparation technique thereof |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180119 |