CN105803309B - Ball grinding machine lining board - Google Patents

Ball grinding machine lining board Download PDF

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Publication number
CN105803309B
CN105803309B CN201610170639.3A CN201610170639A CN105803309B CN 105803309 B CN105803309 B CN 105803309B CN 201610170639 A CN201610170639 A CN 201610170639A CN 105803309 B CN105803309 B CN 105803309B
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Prior art keywords
grinding machine
ball grinding
lining board
machine lining
temperature
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CN201610170639.3A
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CN105803309A (en
Inventor
吕仁杰
赵会琴
吉鹏辉
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Zhongtiao Mountain Mechanical & Electronic Equipment Corp Ltd
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Zhongtiao Mountain Mechanical & Electronic Equipment Corp Ltd
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • 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
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

Abstract

The present invention relates to a kind of ball grinding machine lining board, include the chemical composition of following percentage by weight：C0.45~0.55%, Si0.8~1.2%, Mn0.8~1.2%, Cr1.7~2.0%, Ni0.30~0.50%, Mo0.20~0.50%, RE0.03~0.06%, Al0.02~0.05%, P≤0.025%, S≤0.025%, remaining is Fe.Present invention also offers the preparation method of ball grinding machine lining board.Alloying element and rare earth element proportion optimizing are added in molten steel by the present invention, and carry out LF stove refinings, improve Molten Steel Cleanliness, refined crystalline strengthening effect is played to liner plate, obtained tempered martensite is while wearability is improved, liner plate service life length, also improve impact flexibility and intensity, reduce the frequency that factory changes liner plate, reduce labor intensity, raw material of the present invention is easy to get, preparation method is simple, using ordinary scrap steel etc. as raw materials for production, recycle, be effectively saved the energy.

Description

Ball grinding machine lining board
Technical field
The present invention relates to plant equipment Material Field, specifically a kind of lining sheet for ball mill.
Background technology
Ball mill is the key equipment for crushing mineral aggregate, and it is widely used among industrial and mining enterprises.Ball mill is mainly logical Between overground Jie and its with cylinder contact zone caused by extruding and mill stripping power material is ground, therefore ball grinding machine lining board is rushed Hit, wear larger, ball grinding machine lining board occurs obvious fracture, worn out phenomenon, it is necessary to constantly be changed in use.One As time used about 6-8 months or so of ball grinding machine lining board, it is expired then need progress lining plate replacing, with 5.03 × 8.5 meters Exemplified by overflow type large-size ball mill, for liner plate weight at 83.5 tons or so, changing a liner plate needs substantial amounts of manpower and materials.Cause This, extends the cycle for changing liner plate, reduces the consuming cost of liner plate, and then the service life for improving liner plate is one and important ground Study carefully problem.
The content of the invention
The purpose of the present invention is to solve the deficiency of above-mentioned technical problem, there is provided a kind of high intensity, high tenacity, high abrasion Ball grinding machine lining board and preparation method thereof.
The present invention is that technical scheme is used by solving above-mentioned technical problem：Ball grinding machine lining board includes following weight percent The chemical composition of ratio：C0.45~0.55%, Si0.8~1.2%, Mn0.8~1.2%, Cr1.7~2.0%, Ni0.30~ 0.50%, Mo0.20~0.50%, RE0.03~0.06%, Al0.02~0.05%, P≤0.025%, S≤0.025%, its Remaining is Fe.
The preparation method of ball grinding machine lining board of the present invention comprises the steps of：
Step 1: dispensing：It is raw material according to the ball mill using steel scrap, ferrosilicon, ferromanganese, ferrochrome, ferronickel, molybdenum-iron, alloy The proportioning of liner plate carries out dispensing；
Step 2: melting：By the raw material prepared in step 1 insert electric arc furnaces carry out melting, smelting temperature be 1600~ 1640℃ ；
Step 3: allotment：Row element check analysis is entered to the molten steel in step 2, member is carried out to molten steel according to assay The secondary proportioning of element；
Step 4: refining：Examine qualified molten steel to be placed in LF refining furnace element in step 3 to be refined, when molten steel temperature Degree reach 1580~1600 DEG C, chemical composition reached target proportioning when, start buggy ladle to LF refining furnace feed silk station fortune OK, carry out feeding silk, soft blow, thermometric sampling, input coverture operation；
Step 5: cast：Molten steel in qualified step four is come out of the stove, carries out rare earth Dy ions with stream when coming out of the stove, so After pour into casting ladle and poured into a mould, pouring temperature is 1520~1540 DEG C；
Step 6: finishing：Die sinking obtains ball grinding machine lining board blank after being cooled to room temperature, and finishing processing is carried out to it；
Step 7: annealing：Ball grinding machine lining board after step 6 is handled is placed in annealing furnace and heated, temperature liter To 840~860 DEG C, 4~6 hours are incubated, cools to room temperature with the furnace；
Step 8: Quenching Treatment：Ball grinding machine lining board after step 7 is handled is placed in glowing furnace and heated, temperature liter To 860~920 DEG C, 3~4 hours are incubated, water quenching or oil quenching are cooled to room temperature；
Step 9: temper：Ball grinding machine lining board after step 8 is handled is placed in tempering furnace and heated, is being tempered 240~260 DEG C of tempering insulations 4~6 hours in stove, coming out of the stove is air-cooled to room temperature and obtains liner plate finished product.
Preferably, annealing is incubated 4 hours for 860 DEG C in step 7, furnace cooling.
Preferably, Quenching Treatment can be incubated 3~4 hours for 860 DEG C in step 8, water quenching cooling to room temperature.
Preferably, Quenching Treatment can also be incubated 3~4 hours for 880 DEG C in step 8, and oil quenching is cooled to room temperature.
Preferably, Quenching Treatment can also be incubated 4 hours for 920 DEG C in step 8, and oil quenching is cooled to room temperature.
Preferably, the holding temperature of temper is 250 DEG C in step 9.
The beneficial effects of the invention are as follows：Alloying element and rare earth element proportion optimizing are added in molten steel by the present invention, and LF stove refinings are carried out, improve Molten Steel Cleanliness, refined crystalline strengthening effect is played to liner plate, obtained tempered martensite is carrying While high-wearing feature, impact flexibility and intensity are also improved, extends the service life of liner plate, reduces enterprise and changes liner plate Frequency, reduce labor intensity；Reach liner plate gross thickness without fracture, worn out phenomenon, thinnest part after the liner plate use of the present invention 1/3, thin and thick is more uniform after military service, and liner plate active time is more than 1 year, and anti-wear performance is good, and using effect is preferable；This hair Bright preparation method is simple, using ordinary scrap steel etc. as raw material, recycles, is effectively saved the energy, molten steel is gone bad Processing, alterant is set to form largely scattered made non-spontaneous nucleation in molten metal, so as to obtain tiny casting Crystal grain, improve tissue, increase the toughness and intensity of liner plate, improve service life.
Embodiment
Embodiment 1
Ball grinding machine lining board, include the chemical composition of following percentage by weight：C0.54%, Si0.82%, Mn0.93%, Cr1.89%, Ni0.48%, Mo0.46%, RE0.032%, Al0.03%, P0.023%, S0.021%, remaining is Fe.
The preparation method of ball grinding machine lining board of the present invention comprises the steps of：
Step 1: dispensing：It is raw material according to the ball mill using steel scrap, ferrosilicon, ferromanganese, ferrochrome, ferronickel, molybdenum-iron, alloy The proportioning of liner plate carries out dispensing；
Step 2: melting：The raw material prepared in step 1 is inserted into electric arc furnaces and carries out melting, smelting temperature is 1630 DEG C；
Step 3: allotment：Row element check analysis is entered to the molten steel in step 2, member is carried out to molten steel according to assay The secondary proportioning of element；
Step 4: refining：Examine qualified molten steel to be placed in LF refining furnace element in step 3 to be refined, as needed Add a small amount of alloy and be particularly oxidizable alloy and be finely adjusted, when liquid steel temperature and chemical composition have reached desired value, open Dynamic buggy ladle feeds the operation of silk station to LF refining furnace, carries out feeding silk, soft blow, thermometric sampling, input coverture operation, addition is few Amount alloy, which is adjusted, can accurately control liquid steel temperature and component content, it is easy to accomplish narrower composition range, improve product Stability；
Step 5: cast：Molten steel in qualified step four is come out of the stove, carries out rare earth Dy ions with stream when coming out of the stove, so After pour into casting ladle and poured into a mould, pouring temperature is 1540 DEG C；
Step 6: finishing：Die sinking obtains ball grinding machine lining board blank after being cooled to room temperature, and finishing processing is carried out to it；
Step 7: annealing：Ball grinding machine lining board after step 6 is handled is placed in annealing furnace and annealed, temperature liter To 840 DEG C, 6 hours are incubated, cools to room temperature with the furnace；
Step 8: Quenching Treatment：Ball grinding machine lining board after step 7 is handled is placed in glowing furnace and quenched, temperature liter To 860 DEG C, 3.5 hours are incubated, water quenching cooling to room temperature；
Step 9: temper：Ball grinding machine lining board after step 8 is handled is placed in tempering furnace and is tempered, is being tempered 260 DEG C of tempering insulations 4 hours in stove, coming out of the stove is air-cooled to room temperature and obtains liner plate finished product.
Liner plate made from the present embodiment has good toughness plasticity.
Embodiment 2
Ball grinding machine lining board, include the chemical composition of following percentage by weight：C0.50%, Si0.97%, Mn1.12%, Cr1.81%, Ni0.39%, Mo0.35%, RE0.046%, Al0.034%, P0.024%, S0.021%, remaining is Fe.
The preparation method of ball grinding machine lining board of the present invention comprises the steps of：
Step 1: dispensing：It is raw material according to the ball mill using steel scrap, ferrosilicon, ferromanganese, ferrochrome, ferronickel, molybdenum-iron, alloy The proportioning of liner plate carries out dispensing；
Step 2: melting：The raw material prepared in step 1 is inserted into electric arc furnaces and carries out melting, smelting temperature is 1640 DEG C；
Step 3: allotment：Row element check analysis is entered to the molten steel in step 2, member is carried out to molten steel according to assay The secondary proportioning of element；
Step 4: refining：Examine qualified molten steel to be placed in LF refining furnace element in step 3 to be refined, as needed Add a small amount of alloy and be particularly oxidizable alloy and be finely adjusted, when liquid steel temperature and chemical composition have reached desired value, open Dynamic buggy ladle feeds the operation of silk station to LF refining furnace, carries out feeding silk, soft blow, thermometric sampling, input coverture operation, addition is few Amount alloy, which is adjusted, can accurately control liquid steel temperature and component content, it is easy to accomplish narrower composition range, improve product Stability；
Step 5: cast：Molten steel in qualified step four is come out of the stove, carries out rare earth Dy ions with stream when coming out of the stove, so After pour into casting ladle and poured into a mould, pouring temperature is 1530 DEG C；
Step 6: finishing：Die sinking obtains ball grinding machine lining board blank after being cooled to room temperature, and finishing processing is carried out to it；
Step 7: annealing：Ball grinding machine lining board after step 6 is handled is placed in annealing furnace and annealed, temperature liter To 850 DEG C, 5 hours are incubated, cools to room temperature with the furnace；
Step 8: Quenching Treatment：Ball grinding machine lining board after step 7 is handled is placed in glowing furnace and quenched, temperature liter To 880 DEG C, 3.5 hours are incubated, oil quenching is cooled to room temperature；
Step 9: temper：Ball grinding machine lining board after step 8 is handled is placed in tempering furnace and is tempered, is being tempered 240 DEG C of tempering insulations 6 hours in stove, coming out of the stove is air-cooled to room temperature and obtains liner plate finished product.
Liner plate made from the present embodiment has good comprehensive mechanical property.
Embodiment 3
Ball grinding machine lining board, include the chemical composition of following percentage by weight：C0.46%, Si0.82%, Mn1.15%, Cr1.95%, Ni0.45%, Mo0.32%, RE0.037%, Al0.036%, P0.02%, S0.021%, remaining is Fe.
The preparation method of ball grinding machine lining board of the present invention comprises the steps of：
Step 1: dispensing：It is raw material according to the ball mill using steel scrap, ferrosilicon, ferromanganese, ferrochrome, ferronickel, molybdenum-iron, alloy The proportioning of liner plate carries out dispensing；
Step 2: melting：The raw material prepared in step 1 is inserted into electric arc furnaces and carries out melting, smelting temperature is 1620 DEG C；
Step 3: allotment：Row element check analysis is entered to the molten steel in step 2, member is carried out to molten steel according to assay The secondary proportioning of element；
Step 4: refining：Examine qualified molten steel to be placed in LF refining furnace element in step 3 to be refined, as needed Add a small amount of alloy and be particularly oxidizable alloy and be finely adjusted, when liquid steel temperature and chemical composition have reached desired value, open Dynamic buggy ladle feeds the operation of silk station to LF refining furnace, carries out feeding silk, soft blow, thermometric sampling, input coverture operation, addition is few Amount alloy, which is adjusted, can accurately control liquid steel temperature and component content, it is easy to accomplish narrower composition range, improve product Stability；
Step 5: cast：Molten steel in qualified step four is come out of the stove, carries out rare earth Dy ions with stream when coming out of the stove, so After pour into casting ladle and poured into a mould, pouring temperature is 1540 DEG C；
Step 6: finishing：Die sinking obtains ball grinding machine lining board blank after being cooled to room temperature, and finishing processing is carried out to it；
Step 7: annealing：Ball grinding machine lining board after step 6 is handled is placed in annealing furnace and annealed, temperature liter To 860 DEG C, 4 hours are incubated, cools to room temperature with the furnace；
Step 8: Quenching Treatment：Ball grinding machine lining board after step 7 is handled is placed in glowing furnace and quenched, temperature liter To 920 DEG C, 4 hours are incubated, oil quenching is cooled to room temperature；
Step 9: temper：Ball grinding machine lining board after step 8 is handled is placed in tempering furnace and is tempered, is being tempered 250 DEG C of tempering insulations 4 hours in stove, coming out of the stove is air-cooled to room temperature and obtains liner plate finished product.
Liner plate made from the present embodiment has higher intensity and hardness.
Alloying element and rare earth element proportion optimizing are added in molten steel by the present invention, and carry out LF stove refinings, are improved Molten Steel Cleanliness, refined crystalline strengthening effect is played to liner plate, and obtained tempered martensite also carries while wearability is improved High impact flexibility and intensity, extend the service life of liner plate, reduce the frequency that enterprise changes liner plate, it is strong to reduce work Degree.
It is right if making dry sample according to the preparation method of the present invention in order to further illustrate the performance of the liner plate of the present invention Sample carries out mechanical property and quenching degree detection.Such as following table：
Table 1
Table 1
Table 2
Table 3
Test block sample + 250 DEG C of tempering of 860 DEG C of water quenchings + 250 DEG C of tempering of 840 DEG C of water quenchings
Tensile strength MPa ＞ 1707 ＞ 1592
Impact flexibility（J/cm2） 37 43
It is 56-58HRC that the hardenability test result of sample, which can be seen that specimen surface hardness, from table 1, and centre hardness is 54-56HRC, material quenching degree of the present invention are excellent.From Table 2, it can be seen that the table of 860 DEG C of oil quenching experiments of liner plate sample of the present invention Surface hardness 55-58HRC, the case hardness 52-55.5HRC of 830 DEG C of water quenching experiments, illustrates to obtain using the Quenching Treatment of the present invention Liner plate sample hardenability it is preferable, and rear lining plate flawless of quenching.As can be seen from Table 3, the tensile strength of material of the present invention More than 1707Mpa can be reached, and have preferable impact flexibility.
It is quenching degree experiment below：Quenching degree is determined with the end quenching hardenability test of standard.Experimental sample is through 860 DEG C Annealing, 840 DEG C of austenitizings carry out end quenching experiment, and end water quenching curve is shown in Fig. 2-1.Experiment quenching degree uses φ 50 × 100mm, 100 × 150mm of φ, 150 × 150mm of φ, tri- kinds of turriform samples, sample are poured into a mould in 5 tons of electric arc furnace smeltings, Sample is heat-treated with castings production, and dissection sample hardness is shown in Fig. 2-2.As seen from the figure, inside and outside the hardness of sample uniformly, Quenching degree ＞ 150mm.
Fig. 2-1 ends water quenching curve map 2-2 turriforms dissect sample hardness
Described above is only the preferred embodiment of the present invention, for those skilled in the art, On the premise of not departing from the technology of the present invention principle, some changes or replacement can also be made, these also should be regarded as the guarantor of the present invention Protect scope.

Claims (6)

1. ball grinding machine lining board, it is characterised in that：Include the chemical composition of following percentage by weight：C0.5~0.54%, Si0.82 ~0.97%, Mn0.8~1.2%, Cr1.7~2.0%, Ni0.30~0.50%, Mo0.39~0.50%, RE0.03~ 0.06%, Al0.02~0.05%, P≤0.025%, S≤0.025%, remaining is Fe;
The preparation method of described ball grinding machine lining board, is comprised the steps of：
Step 1: dispensing：It is raw material according to the ball grinding machine lining board using steel scrap, ferrosilicon, ferromanganese, ferrochrome, ferronickel, molybdenum-iron, alloy Proportioning carry out dispensing；
Step 2: melting：The raw material prepared in step 1 is inserted into electric arc furnaces and carries out melting, smelting temperature is 1600~1640 DEG C ；
Step 3: allotment：Row element check analysis is entered to the molten steel in step 2, row element is entered to molten steel according to assay Secondary proportioning；
Step 4: refining：Examine qualified molten steel to be placed in LF refining furnace element in step 3 to be refined, when liquid steel temperature reaches When having reached target proportioning to 1580~1600 DEG C, chemical composition, start buggy ladle and feed the operation of silk station to LF refining furnace, enter Row feeds silk, soft blow, thermometric sampling, input coverture operation；
Step 5: cast：Molten steel in qualified step four is come out of the stove, rare earth Dy ions is carried out with stream when coming out of the stove, then falls Enter casting ladle to be poured into a mould, pouring temperature is 1520~1540 DEG C；
Step 6: finishing：Die sinking obtains ball grinding machine lining board blank after being cooled to room temperature, and finishing processing is carried out to it；
Step 7: annealing：Ball grinding machine lining board after step 6 is handled is placed in annealing furnace and heated, temperature rises to 840~860 DEG C, 4~6 hours are incubated, cools to room temperature with the furnace；
Step 8: Quenching Treatment：Ball grinding machine lining board after step 7 is handled is placed in glowing furnace and heated, temperature rises to 860~920 DEG C, 3~4 hours are incubated, water quenching or oil quenching are cooled to room temperature；
Step 9: temper：Ball grinding machine lining board after step 8 is handled is placed in tempering furnace and heated, in tempering furnace 240~260 DEG C of tempering insulations 4~6 hours, coming out of the stove is air-cooled to room temperature and obtains liner plate finished product.
2. ball grinding machine lining board as claimed in claim 1, it is characterised in that：Annealing is small for 860 DEG C of insulations 4 in step 7 When, furnace cooling.
3. ball grinding machine lining board as claimed in claim 1, it is characterised in that：Quenching Treatment can be 860 DEG C of insulations 3 in step 8 ~4 hours, water quenching cooling to room temperature.
4. ball grinding machine lining board as claimed in claim 1, it is characterised in that：Quenching Treatment can also be 880 DEG C of guarantors in step 8 Temperature 3~4 hours, oil quenching is cooled to room temperature.
5. ball grinding machine lining board as claimed in claim 1, it is characterised in that：Quenching Treatment can also be 920 DEG C of guarantors in step 8 Temperature 4 hours, oil quenching is cooled to room temperature.
6. ball grinding machine lining board as claimed in claim 1, it is characterised in that：The holding temperature of temper is 250 in step 9 ℃。
CN201610170639.3A 2016-03-24 2016-03-24 Ball grinding machine lining board Active CN105803309B (en)

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CN106282823A (en) * 2016-08-25 2017-01-04 中建材宁国新马耐磨材料有限公司 A kind of wear resistant corrosion resistant multicomponent alloy steel liner plate
CN107502828A (en) * 2017-08-25 2017-12-22 洛阳博林合金材料有限公司 A kind of high-wear-resistant alloy material and preparation method thereof
CN108817320A (en) * 2018-07-09 2018-11-16 徐州鑫华耐磨材料有限公司 The manufacturing method of carbon chrome molybdenum nickel alloy steel liner plate
CN108796378A (en) * 2018-07-16 2018-11-13 遵义金业机械铸造有限公司 A kind of distribution improving ZG40Mn2 mechanical properties
CN109127009B (en) * 2018-08-31 2021-02-02 贺州市骏鑫矿产品有限责任公司 Ball mill for grinding potash-sodalite
CN109778068B (en) * 2019-03-11 2020-07-17 上海大学 Niobium-vanadium composite reinforced wear-resistant cast steel and preparation method thereof
CN111996433A (en) * 2020-07-07 2020-11-27 云南昆钢耐磨材料科技股份有限公司 Chromium-molybdenum alloy steel lining plate and production process thereof

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CN1060535C (en) * 1997-03-19 2001-01-10 山东省东方特种钢厂 Iron based, rare earth containing, low chromium content antiwear alloy steel
CN102140612A (en) * 2011-02-23 2011-08-03 上海三一重机有限公司 Multi-component alloy cast steel bucket tooth and production process thereof
CN103981449B (en) * 2014-05-28 2015-10-21 河南理工大学 A kind of method utilizing electric arc furnace to prepare low-alloy high-ductility abrasion-proof cast steel

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