CN107177790A - A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method - Google Patents
A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method Download PDFInfo
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- CN107177790A CN107177790A CN201710258308.XA CN201710258308A CN107177790A CN 107177790 A CN107177790 A CN 107177790A CN 201710258308 A CN201710258308 A CN 201710258308A CN 107177790 A CN107177790 A CN 107177790A
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- Prior art keywords
- pelletizing
- high intensity
- sea sand
- lateritic nickel
- ore deposit
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method, its chemical composition is by weight percentage：Fe 0.35~0.40；Si≤0.06；Al≤0.16；S≤0.05；P≤0.001；Ti 0.07~0.13；Ca 0.146；Co 0.0007~0.0019；Surplus is Fe and inevitable impurity.The pelletizing surface treatment of the present invention, the light that enters to drive a vehicle to finished pellet surface processing, eliminate surface defect and pelletizing size, shape, surface quality is met design requirement, finished product pelletizing, and with higher tensile strength, compression strength and appropriate extent of elasticity, cracking, the unfavorable condition of deformation are less prone in use, with good economic benefit and social benefit, are adapted to promote the use of.
Description
Technical field
The present invention relates to sea sand ore deposit and the preparation method of lateritic nickel ore pelletizing, more particularly to a kind of sea sand ore deposit and lateritic nickel ore
High intensity cold agglomerated pellet preparation method.
Background technology
In special chemical technology field, sea sand ore deposit and lateritic nickel ore pelletizing have good hardness, intensity, elasticity
Can, compared with the pelletizing that ferritic stainless steel and other steel are made, it both unlike the welding heat affected zone of ferritic stainless steel,
Because crystal grain is seriously roughened and plasticity and toughness are greatly reduced, also unlike other steel, in the case of hypertonia easily
Deformation.Sea sand ore deposit and lateritic nickel ore pelletizing are widely used in machine-building, construction material etc. due to its special advantage, near
Bridge bearing construction applications are also studied for over year, with good development prospect.
In general, the supply of special chemical environment is often restricted, price is also higher, how with the sea sand ore deposit of excellent performance
It is one of primary study direction of those skilled in the art with lateritic nickel ore pelletizing.
In summary, this area urgently seek that a kind of strength character is outstanding, elastic performance is good, on-deformable sea sand ore deposit and
Lateritic nickel ore pelletizing preparation method.
The content of the invention
The present invention technical solution be：A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method,
The technique includes step：
Element melting in non-vacuum induction furnace, 1500~1550 DEG C of smelting temperature needed for taking；Adjusted in fusion process
The content of each element, makes its weight ratio meet design requirement, and the content of control impurity element is as far as possible low, and solution is poured into from power consumption
Pole；
By consutrode in electroslag furnace remelting refining, further reduction impurity element content, comply with design will
Ask, remelting is into ESR ingot, and step and technological parameter are as follows：1 slag system：CaF2:Al2O3:CaO:MgO=60:25:10:5 (%)；Slag
Measure 35Kg；2 electric power systems：Voltage 55V ± 3V；7400 ± 200A of electric current.The processing of 3 cryogenic condensations, accelerates shaping.
It is preferred that, element melting in non-vacuum induction furnace, 1500~1550 DEG C of smelting temperature needed for being taken in step 1；
The content of each element is adjusted in fusion process, its weight ratio is met design requirement, controls the content of impurity element as far as possible low, it is molten
Liquid pours into consutrode.
It is preferred that, in step 2 by consutrode in electroslag furnace remelting refining, further reduction impurity element content,
Comply with design requirement, remelting is into ESR ingot.
It is preferred that, the pelletizing cryogenic condensation processing completed will be heated in step 3, accelerate shaping.
It is preferred that, pelletizing is made in ESR ingot heats forged in step 4, heat treatment step and technological parameter are as follows：By ball
Group is heated to 1000 ± 10 DEG C and is incubated 3~4 hours, starts forging.
It is preferred that, condensation process in step 5：Condensation process step and technological parameter are as follows：Subzero 100 ± 10 DEG C, insulation
≥0.5h。
It is preferred that, repeated the above steps in step 6, refining of quenching repeatedly, number of repetition is between 3~5.
Its chemical composition, by weight percentage for：
Fe 0.35~0.40；Si≤0.06；Al≤0.16；S≤0.05；P≤0.001；Ti 0.07~0.13；Ca
0.146；Co 0.0007~0.0019；Surplus is Fe and inevitable impurity.Impurity by mass percentage, including：Si≤
1.00, P≤0.030, S≤0.010.
The beneficial effects of the invention are as follows：The rod surface treatment of the present invention, the light that enters to drive a vehicle to finished pellet surface processing is eliminated
Surface defect simultaneously makes pelletizing size, shape, surface quality meet design requirement, finished product pelletizing, and pelletizing has higher resist
Tensile strength, yield strength and higher elastic performance, are less prone to cracking, the unfavorable condition of deformation, have in use
Good economic benefit and social benefit, is adapted to promote the use of.
Embodiment
Embodiment 1；Prepare raw material by following alloying components (mass percent)：Its chemical composition, by weight percentage
For：Fe 0.35~0.40；Si≤0.06；Al≤0.16；S≤0.05；P≤0.001；Ti 0.07~0.13；Ca0.146；
Co0.0007~0.0019；Surplus is Fe and inevitable impurity.
Element melting in non-vacuum induction furnace, 1500~1550 DEG C of smelting temperature needed for taking；Adjusted in fusion process
The content of each element, makes its weight ratio meet design requirement, and the content of control impurity element is as far as possible low, and solution is poured into from power consumption
Pole；
By consutrode in electroslag furnace remelting refining, further reduction impurity element content, comply with design will
Ask, remelting is into ESR ingot.
Cryogenic condensation processing, accelerates shaping.
Sample heats process step and technological parameter is as follows：
Pelletizing is heated to 1000 ± 10 DEG C and is incubated 3~4 hours, starts forging.
Sample condensation process step and technological parameter are as follows：
Subzero 100 ± 10 DEG C, insulation >=0.5h.
Repeat the above steps, refining of quenching repeatedly, number of repetition is between 3~5.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any mark in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (8)
1. a kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method, it is characterised in that the technique includes step
Suddenly：
Element melting in non-vacuum induction furnace, 1500~1550 DEG C of smelting temperature needed for taking；Each member is adjusted in fusion process
The content of element, makes its weight ratio meet design requirement, and the content of control impurity element is as far as possible low, and solution pours into consutrode；
By consutrode in electroslag furnace remelting refining, further reduction impurity element content, comply with design requirement, remelting into
ESR ingot；Cryogenic condensation processing, accelerates shaping.
2. a kind of sea sand ore deposit according to claim 1 and lateritic nickel ore high intensity cold agglomerated pellet preparation method, its feature
It is, ESR ingot heats forged is made into pelletizing, and step and technological parameter are as follows；Pelletizing is heated to 1000 ± 10 DEG C of insulations 3
~4 hours, start forging.
3. a kind of sea sand ore deposit according to claim 1 and lateritic nickel ore high intensity cold agglomerated pellet preparation method, its feature
It is, sample condensation process step and technological parameter are as follows：Condensation process：Subzero 100 ± 10 DEG C, insulation >=0.5h.
4. a kind of sea sand ore deposit according to claim 1 or 2 and lateritic nickel ore high intensity cold agglomerated pellet preparation method, it is special
Levy and be, the step of repeating claim 1 and claim 2, refining of quenching repeatedly, number of repetition is between 3~5.
5. a kind of sea sand ore deposit according to claim 1 and lateritic nickel ore high intensity cold agglomerated pellet preparation method, its feature
It is, the pelletizing surface treatment, the light that enters to drive a vehicle to finished pellet surface processing eliminates surface defect and makes pelletizing size, shape
Shape, surface quality meet design requirement, finished product pelletizing.
6. a kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method described in claim 1, it is characterised in that
The parcel processing of pelletizing surface, strengthens pelletizing elastic performance.
7. a kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method, it is characterised in that its chemical composition, by weight
Measuring percentages is：
Fe 0.35~0.40；
Si≤0.06；
Al≤0.16；
S≤0.05；
P≤0.001；
Ti 0.07~0.13；
Ca 0.146；
Co 0.0007~0.0019；
Surplus is Fe and impurity.
8. a kind of sea sand ore deposit according to claim 7 and lateritic nickel ore high intensity cold agglomerated pellet preparation method, its feature
It is, the impurity, by mass percentage, including：Si≤1.00；P≤0.030；S≤0.010.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258308.XA CN107177790A (en) | 2017-04-19 | 2017-04-19 | A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method |
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| CN201710258308.XA CN107177790A (en) | 2017-04-19 | 2017-04-19 | A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method |
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| CN107177790A true CN107177790A (en) | 2017-09-19 |
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| CN201710258308.XA Pending CN107177790A (en) | 2017-04-19 | 2017-04-19 | A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894313A (en) * | 2015-06-09 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method for vanadium titano-magnetite |
| CN105441668A (en) * | 2015-11-25 | 2016-03-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Sintering method for sea sand vanadium-titanium-iron concentrate |
| CN106319206A (en) * | 2016-08-31 | 2017-01-11 | 广西盛隆冶金有限公司 | Method for producing ferro-nickel alloy with nickel laterite ore |
| CN106521355A (en) * | 2016-11-25 | 2017-03-22 | 四川六合锻造股份有限公司 | Double-phase stainless steel as well as preparation method and application thereof |
-
2017
- 2017-04-19 CN CN201710258308.XA patent/CN107177790A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894313A (en) * | 2015-06-09 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method for vanadium titano-magnetite |
| CN105441668A (en) * | 2015-11-25 | 2016-03-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Sintering method for sea sand vanadium-titanium-iron concentrate |
| CN106319206A (en) * | 2016-08-31 | 2017-01-11 | 广西盛隆冶金有限公司 | Method for producing ferro-nickel alloy with nickel laterite ore |
| CN106521355A (en) * | 2016-11-25 | 2017-03-22 | 四川六合锻造股份有限公司 | Double-phase stainless steel as well as preparation method and application thereof |
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Application publication date: 20170919 |