CN106282744A - A kind of preparation method of ball mill high manganese steel lining plate - Google Patents
A kind of preparation method of ball mill high manganese steel lining plate Download PDFInfo
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- CN106282744A CN106282744A CN201510274411.4A CN201510274411A CN106282744A CN 106282744 A CN106282744 A CN 106282744A CN 201510274411 A CN201510274411 A CN 201510274411A CN 106282744 A CN106282744 A CN 106282744A
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Abstract
The invention discloses the preparation method of a kind of ball mill high manganese steel lining plate, mainly include melting, skim, moulding, cast, sand removal, heat treatment, the step such as quenching.In the preparation method of the ball mill high manganese steel lining plate that the present invention provides, by processing technique such as rational melting, moulding, casting, allow abrasion-proof backing block have good mechanical performance, compared with high manganese steel lining plate of the prior art, there is longer service life.
Description
Technical field
The present invention relates to abrasion-proof backing block technical field, more specifically to a kind of ball mill high manganese steel lining plate
Preparation method.
Background technology
Ball mill is the key equipment carrying out again after material is broken pulverizing.It is widely used in cement, silicic acid
The production industries such as salt product, New Building Materials, refractory material, chemical fertilizer, glass ceramics, to various Ores
Dry type or wet type grinding is carried out with other grindability material.Ball mill by feed portion, discharging portion, rotating part,
Reductor, small transmission gear, motor, the major part such as automatically controlled composition.Quill shaft uses steel-casting, liner
Replaceable, revolution gear wheel uses foundry goods gear hobbing process, studs with abrasion-proof backing block in cylinder, has good resistance to
Mill property.
Abrasion-proof backing block, refers to that wear-resisting steel plate passes through cutting, roll bending deformation, punches and the processing of the production technology such as welding
Form various abrasion-proof backing block, such as conveyer liner plate, feeder base plate/cyclone separator back taper and liner plate, wear-resisting
Blades etc., improve more than 15 times than general steel plate friction durability.
China's lining board of grinder to be consumed about 200,000 tons, lining board of crusher about 200,000 tons, it is worth nearly 2,000,000,000
Unit, therefore, reduction lining material production cost, the service life of prolongation lining material have highly important
Economic implications.
Chinese patent 201310727251 discloses the preparation method of a kind of abrasion-proof backing block.Step is: step
One, the preparation of casting sand type；Step 2, fusion process, use smelting furnace to carry out fusion smelting so that molten
Melt metal to be made up of following component and mass percent thereof: C:3.0～3.2%, Si:0.3～0.4%, Mn:
0.5～0.7%, Cr:2～3%, Mo:2.8～3.1%, Cu:0.8～1.2%, V:8～9%, B:
0.002～0.003%, Sn:0.04～0.05%, Te:0.02～0.03%, Ce:0.01～0.02%, Zr:
0.03～0.04%, Y:0.004～0.005%, P:0.01～0.02%, S:0.001～0.002%, surplus
For the inevitable impurity of Fe, wherein: Cu/Sn=20～24；Step 3, casting cycle；Step 4,
Heat treatment, wherein: wind quenching processes and carries out on vibration work platforms.Component in this technical scheme still need to into
One step is improved to improve its service life, and alloy content is higher, adds cost, the reality of high-abrasive material
From eutectic point farther out, liquid-solid two-phase region is wide for composition, easily presents mushy freezing feature, easily blocks feeding and leads to
Road, easily produces the phenomenon of shrinkage porosite, shrinkage cavity, and this technical scheme haves much room for improvement.
Summary of the invention
In order to overcome the shortcoming of above-mentioned technology, the invention provides the preparation side of a kind of ball mill high manganese steel lining plate
Method, the high manganese steel lining plate prepared has good mechanical performance, shock resistance, anti-wear performance, and
Service life is longer.
The present invention solves technical problem and be the technical scheme is that the system of a kind of ball mill high manganese steel lining plate
Preparation Method, mainly comprises the steps that
Step 1: first select preferable waste and old manganese steel and steel scrap as raw material；
Step 2: melting, is melt into manganese steel water by above-mentioned waste and old manganese steel and steel scrap by electric furnace, and adds alloy unit
Element carries out analysis of components, fine setting, meets the mass fraction requirement of the chemical composition of above-mentioned potassium steel to composition,
Temperature is risen to 1600～1650 DEG C；
Step 3: take off Slag treatment: use aluminum strip to carry out final deoxidizing process；
Step 4: moulding, selects high-quality basic matterial sand as moulding sand, and type is coated after making, then
Carry out igniting baking, then mould assembling；
Step 5: cast, liquid steel temperature out controls to pour into a mould at 1550 DEG C～1600 DEG C, cast temperature
Degree controls at 1500 DEG C～1550 DEG C, and temperature retention time is 3 hours；
Step 6: sand removal, after casting complete, controls the sand removal time according to foundry goods size and thickness；Cleaning casting
Part burr, polishing inspection；
Step 7: heat treatment, puts well in the foundry goods cleared up is deposited into high temperature heat treatment furnace, seals fire door,
Heating up, after being incubated 3～4 hours at 1040 DEG C～1110 DEG C, quick tapping enters water quenching；
Step 8: again cleaning surface and product carry out an acceptance inspection, enter storehouse, stack, warehouse-in of classifying.
Further, described melting step uses intermediate frequency furnace, and described induction furnace inner bottom part is equipped with one layer
Calx and the mixture of fluorite.
Further, described in skim process step in, the weight of aluminum strip is the 0.3～0.35% of molten steel weight.
Further, in described step of overall modelling, moulding uses carbon dioxide to make cured after completing.
Further, the concrete operations of described heat treatment step are: less than 200 DEG C shove charges, make workpiece from room temperature
Under the conditions of being warming up to 1050 ± 10 DEG C, it is incubated 1.5～2h, then continues to heat up, 1100 ± 10 DEG C of conditions
Under, it is incubated 1.5～2h.
Further, the concrete operations of described quenching are: quickly being come out of the stove by foundry goods, tapping temperature controls 1000
About DEG C, casting temperature controls be in the aqueous medium of room temperature state not less than 950 DEG C of immersions, enters foundry goods
Row integral quenching 1 hour, in quenching process, aqueous medium temperature controls below 80 DEG C.
The invention has the beneficial effects as follows: compared with prior art, the ball mill potassium steel that the present invention provides serves as a contrast
In the preparation method of plate, by processing technique such as rational melting, moulding, casting, abrasion-proof backing block is allowed to have
Good mechanical performance, compared with high manganese steel lining plate of the prior art, has longer service life.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is only
For the present invention being described rather than limiting the scope of the present invention.
Embodiment 1
The preparation method of a kind of ball mill high manganese steel lining plate mainly comprises the steps that
Step 1: first select preferable waste and old manganese steel and steel scrap as raw material；
Step 2: melting, is melt into manganese steel water by above-mentioned waste and old manganese steel and steel scrap by electric furnace, and adds alloy unit
Element carries out analysis of components, fine setting, meets the mass fraction requirement of the chemical composition of above-mentioned potassium steel to composition,
Temperature is risen to 1600～1650 DEG C；Described electric furnace uses intermediate frequency furnace, and described induction furnace inner bottom part is laid
There are one layer of Calx and the mixture of fluorite；
Step 3: take off Slag treatment: using aluminum strip to carry out final deoxidizing process, the weight of aluminum strip is molten steel weight
0.3%；
Step 4: moulding, selects high-quality basic matterial sand as moulding sand, and type is made and consolidated with carbon dioxide afterwards
Change processes, and then coats, then carries out igniting baking, then mould assembling；
Step 5: cast, liquid steel temperature out controls to pour into a mould at 1550 DEG C～1600 DEG C, cast temperature
Degree controls at 1500 DEG C～1550 DEG C, and temperature retention time is 3 hours；
Step 6: sand removal, after casting complete, controls the sand removal time according to foundry goods size and thickness；Cleaning casting
Part burr, polishing inspection；
Step 7: heat treatment, puts well in the foundry goods cleared up is deposited into high temperature heat treatment furnace, charging temperature control
System, below 200 DEG C, seals fire door, makes workpiece under the conditions of room temperature to 1050 DEG C, is incubated 1.5h,
Then continue to heat up, under the conditions of 1100 DEG C, be incubated 1.5h；Quickly being come out of the stove by foundry goods, tapping temperature controls
At about 1000 DEG C, casting temperature controls be in the aqueous medium of room temperature state not less than 950 DEG C of immersions,
Foundry goods is carried out integral quenching 1 hour, and in quenching process, aqueous medium temperature controls below 80 DEG C.
Step 8: again cleaning surface and product carry out an acceptance inspection, enter storehouse, stack, warehouse-in of classifying.
Embodiment 2
The preparation method of a kind of ball mill high manganese steel lining plate mainly comprises the steps that
Step 1: first select preferable waste and old manganese steel and steel scrap as raw material；
Step 2: melting, is melt into manganese steel water by above-mentioned waste and old manganese steel and steel scrap by electric furnace, and adds alloy unit
Element carries out analysis of components, fine setting, meets the mass fraction requirement of the chemical composition of above-mentioned potassium steel to composition,
Temperature is risen to 1600～1650 DEG C；Described electric furnace uses intermediate frequency furnace, and described induction furnace inner bottom part is laid
There are one layer of Calx and the mixture of fluorite；
Step 3: take off Slag treatment: using aluminum strip to carry out final deoxidizing process, the weight of aluminum strip is molten steel weight
0.32%；
Step 4: moulding, selects high-quality basic matterial sand as moulding sand, and type is made and consolidated with carbon dioxide afterwards
Change processes, and then coats, then carries out igniting baking, then mould assembling；
Step 5: cast, liquid steel temperature out controls to pour into a mould at 1550 DEG C～1600 DEG C, cast temperature
Degree controls at 1500 DEG C～1550 DEG C, and temperature retention time is 3 hours；
Step 6: sand removal, after casting complete, controls the sand removal time according to foundry goods size and thickness；Cleaning casting
Part burr, polishing inspection；
Step 7: heat treatment, puts well in the foundry goods cleared up is deposited into high temperature heat treatment furnace, charging temperature control
System, below 200 DEG C, seals fire door, makes workpiece under the conditions of room temperature to 1060 DEG C, is incubated 1.5h,
Then continue to heat up, under the conditions of 1100 DEG C, be incubated 2h；Quickly being come out of the stove by foundry goods, tapping temperature controls
About 1000 DEG C, casting temperature controls be in the aqueous medium of room temperature state not less than 950 DEG C of immersions, to casting
Part carries out integral quenching 1 hour, and in quenching process, aqueous medium temperature controls below 80 DEG C.
Step 8: again cleaning surface and product carry out an acceptance inspection, enter storehouse, stack, warehouse-in of classifying.
Embodiment 3
The preparation method of a kind of ball mill high manganese steel lining plate mainly comprises the steps that
Step 1: first select preferable waste and old manganese steel and steel scrap as raw material；
Step 2: melting, is melt into manganese steel water by above-mentioned waste and old manganese steel and steel scrap by electric furnace, and adds alloy unit
Element carries out analysis of components, fine setting, meets the mass fraction requirement of the chemical composition of above-mentioned potassium steel to composition,
Temperature is risen to 1600～1650 DEG C；Described electric furnace uses intermediate frequency furnace, and described induction furnace inner bottom part is laid
There are one layer of Calx and the mixture of fluorite；
Step 3: take off Slag treatment: using aluminum strip to carry out final deoxidizing process, the weight of aluminum strip is molten steel weight
0.33%；
Step 4: moulding, selects high-quality basic matterial sand as moulding sand, and type is made and consolidated with carbon dioxide afterwards
Change processes, and then coats, then carries out igniting baking, then mould assembling；
Step 5: cast, liquid steel temperature out controls to pour into a mould at 1550 DEG C～1600 DEG C, cast temperature
Degree controls at 1500 DEG C～1550 DEG C, and temperature retention time is 3 hours；
Step 6: sand removal, after casting complete, controls the sand removal time according to foundry goods size and thickness；Cleaning casting
Part burr, polishing inspection；
Step 7: heat treatment, puts well in the foundry goods cleared up is deposited into high temperature heat treatment furnace, charging temperature control
System, below 200 DEG C, seals fire door, makes workpiece under the conditions of room temperature to 1060 DEG C, is incubated 2h, connects
Continuation to heat up, under the conditions of 1105 DEG C, be incubated 2h；Quickly being come out of the stove by foundry goods, tapping temperature controls 1000
About DEG C, casting temperature controls be in the aqueous medium of room temperature state not less than 950 DEG C of immersions, enters foundry goods
Row integral quenching 1 hour, in quenching process, aqueous medium temperature controls below 80 DEG C.
Step 8: again cleaning surface and product carry out an acceptance inspection, enter storehouse, stack, warehouse-in of classifying.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, relevant technical field
Those of ordinary skill, without departing from the spirit and scope of the present invention, it is also possible to make various change
Changing and modification, the technical scheme of the most all equivalents falls within scope of the invention, the patent protection of the present invention
Scope should be defined by the claims.
Claims (6)
1. the preparation method of a ball mill high manganese steel lining plate, it is characterised in that: described
Preparation method mainly comprises the steps that
Step 1: first select preferable waste and old manganese steel and steel scrap as raw material；
Step 2: melting, is melt into manganese steel water by above-mentioned waste and old manganese steel and steel scrap by electric furnace, and
Add alloying element and carry out analysis of components, fine setting, meet the chemistry one-tenth of above-mentioned potassium steel to composition
The mass fraction requirement divided, rises to 1600～1650 DEG C by temperature；
Step 3: take off Slag treatment: use aluminum strip to carry out final deoxidizing process；
Step 4: moulding, selects high-quality basic matterial sand as moulding sand, and type is carried out after making
Coat, then carry out igniting baking, then mould assembling；
Step 5: cast, liquid steel temperature out controls to water at 1550 DEG C～1600 DEG C
Note, pouring temperature controls at 1500 DEG C～1550 DEG C, and temperature retention time is 3 hours；
Step 6: sand removal, after casting complete, when controlling sand removal according to foundry goods size and thickness
Between；Cleaning hard edges, polishing inspection；
Step 7: heat treatment, puts well in the foundry goods cleared up is deposited into high temperature heat treatment furnace,
Seal fire door, heat up, after being incubated 3～4 hours at 1040 DEG C～1110 DEG C, quickly
Come out of the stove into water quenching；
Step 8: cleaning surface and product carry out an acceptance inspection, enter storehouse, stack, are classified into again
Storehouse.
The preparation method of ball mill high manganese steel lining plate the most according to claim 1, it is special
Levy and be: described melting step uses intermediate frequency furnace, and described induction furnace inner bottom part is equipped with one
Layer Calx and the mixture of fluorite.
The preparation method of ball mill high manganese steel lining plate the most according to claim 1, it is special
Levy and be: described in skim process step in, the weight of aluminum strip is the 0.3～0.35% of molten steel weight.
The preparation method of ball mill high manganese steel lining plate the most according to claim 1, it is special
Levying and be: in described step of overall modelling, moulding uses carbon dioxide to make cured after completing.
The preparation method of ball mill high manganese steel lining plate the most according to claim 1, it is special
Levy and be: the concrete operations of described heat treatment step are: less than 200 DEG C shove charges, make workpiece from
Room temperature, under the conditions of 1050 ± 10 DEG C, is incubated 1.5～2h, then continues to heat up,
Under the conditions of 1100 ± 10 DEG C, it is incubated 1.5～2h.
The preparation method of ball mill high manganese steel lining plate the most according to claim 1, it is special
Levy and be: the concrete operations of described quenching are: quickly being come out of the stove by foundry goods, tapping temperature controls
About 1000 DEG C, the water that casting temperature controls being in room temperature state not less than 950 DEG C of immersions is situated between
In matter, foundry goods being carried out integral quenching 1 hour, in quenching process, aqueous medium temperature controls
Less than 80 DEG C.
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| CN201510274411.4A CN106282744A (en) | 2015-05-26 | 2015-05-26 | A kind of preparation method of ball mill high manganese steel lining plate |
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| CN201510274411.4A CN106282744A (en) | 2015-05-26 | 2015-05-26 | A kind of preparation method of ball mill high manganese steel lining plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393469A (en) * | 2018-01-26 | 2018-08-14 | 济南韶欣耐磨材料有限公司 | A kind of manufacturing method of wear-resisting jaw crusher lining board |
-
2015
- 2015-05-26 CN CN201510274411.4A patent/CN106282744A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393469A (en) * | 2018-01-26 | 2018-08-14 | 济南韶欣耐磨材料有限公司 | A kind of manufacturing method of wear-resisting jaw crusher lining board |
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Application publication date: 20170104 |