CN110257697A - A kind of grate-cooler grate plate high abrasion heat resistance casting and its casting technique - Google Patents
A kind of grate-cooler grate plate high abrasion heat resistance casting and its casting technique Download PDFInfo
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- CN110257697A CN110257697A CN201910640531.XA CN201910640531A CN110257697A CN 110257697 A CN110257697 A CN 110257697A CN 201910640531 A CN201910640531 A CN 201910640531A CN 110257697 A CN110257697 A CN 110257697A
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- casting
- grate
- sand
- heat resistance
- sand core
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention discloses a kind of grate-cooler grate plate high abrasion heat resistance casting and its casting techniques, it is related to the technical field of heat-resisting alloy material, the chemical element component and its mass percent that the casting contains are as follows: C:2.3~2.8%, Si:0.6~1.2%, Mn:0.5~1.5%, P :≤0.06%, S :≤0.04%, Cr:23~28%, Ni:0.2~0.7%, Mo:0.2~0.5%, Cu:0.1~0.5%, Ti:0.2~0.5%, Y:0.1~0.3%, surplus are Fe and inevitable impurity.The casting technique of the casting includes: technological design, coremaking, moulding, melting and casting, knockout and cleaning, heat treatment and grinding process.Grate-cooler grate plate high abrasion heat resistance casting and its casting technique provided by the invention, cast structure are fine and close, and presentation quality is good, the hole defects such as no sand holes, and wearability is strong under grate plate casting hot conditions of the present invention, antioxygenic property is strong.
Description
Technical field
The present invention relates to the technical fields of heat-resisting alloy material, and in particular to a kind of grate-cooler grate plate high abrasion heat resistance
It can casting and its casting technique.
Background technique
Grate-cooler is the critical host equipment in the sinter leaching system of cement plant, and major function is carried out to clinker
Cooling and conveying, meanwhile, hot-air is provided for rotary kiln and dore furnace etc., is the capital equipment of firing system recuperation of heat.Cooling
Owner will have upper housing, lower case, braced frame, driving stringer, grate, chamotte crusher, hydraulic system, cooling blower, sky
The composition such as gas big gun.Wherein, grate plate is the important component in grate, and the slit of specific structure conducts cooling wind between grate plate, through height
Warm material layer gap gently takes the particulate being mixed in coarse grain clinker to bed of material surface, plays the role of cooling clinker.Together
When, grate plate causes its service life limited because the factor by high temperature abrasive wear is influenced.Chromium, nickel is widely used in industry at present
It is heat resisting cast steel as main material, combs using ZG40Cr25Ni20Si2, ZG40Cr25Ni12Si2, ZG30Cr26Ni5 are corresponding
High temperature section, middle-temperature section, the low-temperature zone grate plate of cold.The service life of usual high temperature section grate plate is shorter, and only 12 months or so.
The advantages of conventional steel-casting sand casting process is divided into phenolic sand molding, green sand molding, phenolic sand molding technique
It is sand mold intensity height, mould surface good security, the probability for the casting flaws such as sand holes, burning into sand occur is lower, but cost is relatively
It is high；The main advantage of green sand molding technique is that its is at low cost, high-efficient, and efficient, inexpensive with automatic molding is wanted
It asks and mutually agrees with, but because molding sand uses bentonite, starch as binding material, even if producing cast steel under conditions of high pressure moulding
Casting flaw caused by not occurring because of reasons such as sand mold intensity, surface stabilitys is still relatively difficult to guarantee when part.In addition, ordinary sand casting
Product usually passes through mold principal mode and sand mold straight forming, and dimensional accuracy will be wanted in production high-precision, apperance quality to lower
When the product asked, often scrappage is excessively high.
Summary of the invention
The purpose of the present invention is to provide a kind of grate-cooler grate plate high abrasion heat resistance casting and its casting technique, with
Solve drawbacks described above caused by the prior art.
A kind of grate-cooler grate plate high abrasion heat resistance casting, the chemical element component and its quality hundred which contains
Divide ratio as follows: C:2.3~2.8%, Si:0.6~1.2%, Mn:0.5~1.5%, P :≤0.06%, S :≤0.04%, Cr:23
~28%, Ni:0.2~0.7%, Mo:0.2~0.5%, Cu:0.1~0.5%, Ti:0.2~0.5%, Y:0.1~0.3%,
Surplus is Fe and inevitable impurity.
In conclusion a kind of grate-cooler grate plate casting technique of high abrasion heat resistance casting, includes the following steps:
Step 1: technological design:
Sandbox is designed using horizontal parting, is arranged 8 further according to one type of sandbox size, casting type chamber is connected two-by-two, then leads to
Cross gate series winding is crossed, complete running gate system is formed；Casting ontology uses packaging type sand core, the shrinkage coefficient of external form and sand core
For 20-22 ‰, use the riser necking down position of cast top as ingate, ingate 8~10mm of thickness, in running gate system, running channel
Section ratio are as follows: ∑ sprue: ∑ cross gate: ∑ ingate=1: (1.2-1.5): (1.2-1.5)；
Step 2: coremaking:
Sand core is formed by hot box, and single sand core is arranged in proportion, it is ensured that and it is complete, and coremaking operation is made using core shooter
Industry uses high temperature resistant model in the selection of precoated sand type；
Step 3: moulding:
Mo(u)lding equipment uses horizontal parting static pressure molding line, and moulding rhythm is set as 30 types/hour, and sand core is complete before moulding
At cleaning and assembling, combination sand core and running channel sand core are placed on type chamber by way of normally playing core after principal mode completes moulding
In, mould assembling is completed eventually by closing machine；
Step 4: melting and casting:
Melting is carried out using medium-frequency induction furnace, is adjusted control by specific component requirements, ingredient goes out after the assay was approved
Steel, 1550 ± 10 DEG C of tapping temperature, pouring temperature is controlled at 1480~1500 DEG C；
Step 5: knockout and cleaning:
There are biggish heat sensitivitys for the material casting, thus need to more than sand mold inside holding 6h, to reduce its crackle tendency,
It is cleared up after knockout using catenary suspension type continuous vulcanization shot-blasting machine；
Step 6: heat treatment:
Casting is heated to 950~1000 DEG C, keeps the temperature 3h or more, cool to the furnace later 300 DEG C come out of the stove it is air-cooled, to improve
The impact resistance of product；
Step 7: grinding process:
Grinding process is carried out to casting pressing port position and edge using suspension type sander, angle grinder, goes deburring, hair
Thorn.
Preferably, in technological design, riser is arranged on casting top, plays a dual role of feeding and cast gate, riser
Necking down is arranged in root and casting link position, is convenient for subsequent cleaning.
Preferably, in technological design, when single casting type chamber is arranged, the tough mouth position of casting is arranged in mo(u)ld bottom half, and with
It is vented stick to be connected, plays the role of exhaust and cold steel overflow, it is ensured that casting molding is good.
Preferably, in technological design, using precoated sand sand core packing technology, product section is designed as combination sand core,
Running channel position is formed using sand core, is avoided filling fashioned iron water and is directly contacted with green-sand, so that it is scarce effectively to avoid sand holes, burning into sand
Sunken generation.
Preferably, after the completion of coremaking, to molding sand core position dip-coating zircon flour coating is participated in, to avoid casting appearance
Scab defect.
Advantages of the present invention: the present invention provides a kind of grate-cooler grate plate high abrasion heat resistance casting and its founder
Skill, cast structure are fine and close, and presentation quality is good, the hole defects such as no sand holes, under grate plate casting hot conditions of the present invention wearability it is strong,
Antioxygenic property is strong.Casting dimension is accurate, can meet a group reload request without processing.Casting tensile strength up to 490MPa with
On, impact flexibility 4J/cm2More than.Grate plate casting of the present invention is bearing high temperature, abrasive wear and object by prolonged use
Casting is not in the extraordinary failures situation such as cracking, fragmentation in the case where material impact, grate plate long service life, and market prospects are wide
It is wealthy.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
A kind of grate-cooler grate plate high abrasion heat resistance casting, the chemical element component and its mass percent contained
It is as follows: C:2.3%, Si:0.6%, Mn:0.5%, P :≤0.01%, S :≤0.01%, Cr:23%, Ni:0.2%, Mo:
0.2%, Cu:0.1%, Ti:0.2%, Y:0.15%, surplus are Fe and inevitable impurity.
According to the weight percent of each chemical constituent in the present embodiment raw material, casting method the following steps are included:
S1, C, Si, Mn, Cr, Ni, Mo, Cu and Fe are weighed by the weight percent of constitutive material, by raw material melt blending,
It obtains molten iron, before tapping, Y ferroalloy, Ti iron is placed in the reactive tank of ladle bottom, molten iron completes reaction after pouring；?
After tapping, during calmness, Argon processing is carried out to molten iron；
S2, prepare casting molds, produce type chamber using automatic static-pressure mo(u)lding line, then combine sand core used in product shaping
After be put into type chamber；
S3, it will be formed in molten iron casting to sand mold obtained in step S1, keep pouring temperature control at 1480 ± 5 DEG C,
Obtain casting；
S4, casting after knockout is carried out to dead head separation and polishes, clear up；
S5, the obtained casting of step S4 is heated to 950 ± 5 DEG C, keeps the temperature 3~4h, then be furnace-cooled to 300 ± 5 DEG C, sky of coming out of the stove
It is cold, obtain casting.
Embodiment 2
A kind of grate-cooler grate plate high abrasion heat resistance casting, the chemical element component and its mass percent contained
It is as follows: C:2.55%, Si:0.9%, Mn:1.0%, P :≤0.03%, S :≤0.02%, Cr:25.5%, Ni:0.45%, Mo:
0.35%, Cu:0.3%, Ti:0.3%, Y:0.2%, surplus are Fe and inevitable impurity.
According to the weight percent of each chemical constituent in the present embodiment raw material, casting method the following steps are included:
S1, C, Si, Mn, Cr, Ni, Mo, Cu and Fe are weighed by the weight percent of constitutive material, by raw material melt blending,
It obtains molten iron, before tapping, Y ferroalloy, Ti iron is placed in the reactive tank of ladle bottom, molten iron completes reaction after pouring；?
After tapping, during calmness, Argon processing is carried out to molten iron；
S2, prepare casting molds, produce type chamber using automatic static-pressure mo(u)lding line, then combine sand core used in product shaping
After be put into type chamber；
S3, it will be formed in molten iron casting to sand mold obtained in step S1, keep pouring temperature control at 1490 ± 5 DEG C,
Obtain casting；
S4, casting after knockout is carried out to dead head separation and polishes, clear up；
S5, the obtained casting of step S4 is heated to 975 ± 5 DEG C, keeps the temperature 4~5h, then be furnace-cooled to 300 ± 5 DEG C, sky of coming out of the stove
It is cold, obtain casting.
Embodiment 3
A kind of grate-cooler grate plate high abrasion heat resistance casting, the chemical element component and its mass percent contained
It is as follows: C:2.8%, Si:1.2%, Mn:1.5%, P :≤0.06%, S :≤0.04%, Cr:28%, Ni:0.7%, Mo:
0.5%, Cu:0.5%, Ti:0.35%, Y:0.25%, surplus are Fe and inevitable impurity.
According to the weight percent of each chemical constituent in the present embodiment raw material, casting method the following steps are included:
S1, C, Si, Mn, Cr, Ni, Mo, Cu and Fe are weighed by the weight percent of constitutive material, by raw material melt blending,
It obtains molten iron, before tapping, Y ferroalloy, Ti iron is placed in the reactive tank of ladle bottom, molten iron completes reaction after pouring；?
After tapping, during calmness, Argon processing is carried out to molten iron；
S2, prepare casting molds, produce type chamber using automatic static-pressure mo(u)lding line, then combine sand core used in product shaping
After be put into type chamber；
S3, it will be formed in molten iron casting to sand mold obtained in step S1, keep pouring temperature control at 1500 ± 5 DEG C,
Obtain casting；
S4, casting after knockout is carried out to dead head separation and polishes, clear up；
S5, the obtained casting of step S4 is heated to 1000 ± 5 DEG C, keeps the temperature 5~6h, then be furnace-cooled to 300 ± 5 DEG C, comes out of the stove
It is air-cooled, obtain casting.
In summary: the key element and its effect in matrix are as follows:
(1) Cr element: the raising of Cr constituent content can obviously reduce material oxidation weight gain in a high temperauture environment in matrix,
Cr content oxidation resistance when being greater than 8% is excellent in matrix.M7C3 type carbide oxidation resistance is strong in rich chromium cast iron simultaneously
In other types carbide.This ingredient design, it is ensured that material is in hypoeutectic ingredient, and it is unfavorable to material mechanical performance to avoid the formation of
Primary carbie, while Cr content is within this range, under 1000 DEG C of working environment, it is ensured that Cr constituent content in matrix
Effectively play the role of between 10%~12% oxidation resistant.
(2) Ti element: Ti element forms dystectic carbide, plays heterogeneous shape when molten steel solidification crystallizes in matrix
The effect of core improves that material is wear-resisting, heat resistance to refine crystal grain.
(3) Y element: the one kind of Y element as rare earth element in matrix, effect are purifying molten iron, Y can with O in molten iron,
The harmful elements such as S combine the oxide and sulfide slag for forming Y, and the density of slag is less than molten iron, therefore can float up to molten iron surface, and
Pass through slag making, slagging-off process removal；Improve carbide morphology and distribution in high chromium white iron, so that carbide was evenly distributed
Granular and nodular, and primary austenite can be refined, large dendritic crystal shape tissue is eliminated, material capability is improved；Y is rich in material crystal boundary
Collection forms the oxide of Y under the high temperature conditions, effectively reduces grain boundary oxidation, corrosion, improves product service life.
Advantages of the present invention: the present invention provides a kind of grate-cooler grate plate high abrasion heat resistance casting and its founder
Skill, cast structure are fine and close, and presentation quality is good, the hole defects such as no sand holes, under grate plate casting hot conditions of the present invention wearability it is strong,
Antioxygenic property is strong.Casting dimension is accurate, can meet a group reload request without processing.Casting tensile strength up to 490MPa with
On, impact flexibility 4J/cm2More than.Grate plate casting of the present invention is bearing high temperature, abrasive wear and object by prolonged use
Casting is not in the extraordinary failures situation such as cracking, fragmentation in the case where material impact, grate plate long service life, and market prospects are wide
It is wealthy.
Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.It is all
It is included in the invention within the scope of the present invention or in the change being equal in the scope of the present invention.
Claims (6)
1. a kind of grate-cooler grate plate high abrasion heat resistance casting, it is characterised in that: the chemical element component that the casting contains
And its mass percent is as follows: C:2.3~2.8%, Si:0.6~1.2%, Mn:0.5~1.5%, P :≤0.06%, S :≤
0.04%, Cr:23~28%, Ni:0.2~0.7%, Mo:0.2~0.5%, Cu:0.1~0.5%, Ti:0.2~0.5%, Y:
0.1~0.3%, surplus is Fe and inevitable impurity.
2. a kind of casting technique of the grate-cooler grate plate according to claim 1 with high abrasion heat resistance casting, feature
It is: includes the following steps:
Step 1: technological design:
Sandbox is designed using horizontal parting, is arranged 8 further according to one type of sandbox size, casting type chamber is connected two-by-two, then passes through cross
Running channel series winding, forms complete running gate system；Casting ontology uses packaging type sand core, and the shrinkage coefficient of external form and sand core is
20-22 ‰ uses the riser necking down position of cast top as ingate, ingate 8~10mm of thickness, and in running gate system, running channel is cut
Face ratio are as follows: ∑ sprue: ∑ cross gate: ∑ ingate=1: (1.2-1.5): (1.2-1.5)；
Step 2: coremaking:
Sand core is formed by hot box, and single sand core is arranged in proportion, it is ensured that and it is complete, and coremaking operation uses core shooting machine operation,
High temperature resistant model is used in the selection of precoated sand type；
Step 3: moulding:
Mo(u)lding equipment uses horizontal parting static pressure molding line, and moulding rhythm is set as 30 types/hour, and sand core is completed clearly before moulding
Combination sand core and running channel sand core are placed in type chamber by way of normally playing core by reason and assembling after principal mode completes moulding,
Mould assembling is completed eventually by closing machine；
Step 4: melting and casting:
Melting is carried out using medium-frequency induction furnace, is adjusted control by specific component requirements, ingredient is tapped after the assay was approved, out
1550 ± 10 DEG C of steel temperature, pouring temperature is controlled at 1480~1500 DEG C；
Step 5: knockout and cleaning:
There are biggish heat sensitivitys for the material casting, therefore need to be more than sand mold inside holding 6h, to reduce its crackle tendency, knockout
It is cleared up afterwards using catenary suspension type continuous vulcanization shot-blasting machine；
Step 6: heat treatment:
Casting is heated to 950~1000 DEG C, keeps the temperature 3h or more, cool to the furnace later 300 DEG C come out of the stove it is air-cooled, to improve product
Impact resistance；
Step 7: grinding process:
Grinding process is carried out to casting pressing port position and edge using suspension type sander, angle grinder, goes deburring, burr.
3. a kind of casting technique of the grate-cooler grate plate according to claim 2 with high abrasion heat resistance casting, feature
Be: in technological design, riser is arranged on casting top, plays a dual role of feeding and cast gate, riser root and casting
Necking down is arranged in link position, is convenient for subsequent cleaning.
4. a kind of casting technique of the grate-cooler grate plate according to claim 2 with high abrasion heat resistance casting, feature
It is: in technological design, when single casting type chamber is arranged, the tough mouth position of casting is arranged in mo(u)ld bottom half, and is connected with exhaust stick,
Play the role of exhaust and cold steel overflow, it is ensured that casting molding is good.
5. a kind of casting technique of the grate-cooler grate plate according to claim 2 with high abrasion heat resistance casting, feature
It is: in technological design, using precoated sand sand core packing technology, product section is designed as combination sand core, running channel position is adopted
It is formed with sand core, avoids filling fashioned iron water and directly contacted with green-sand, to effectively avoid the generation of sand holes, burning into sand defect.
6. a kind of casting technique of the grate-cooler grate plate according to claim 2 with high abrasion heat resistance casting, feature
It is: after the completion of coremaking, to molding sand core position dip-coating zircon flour coating is participated in, scab defect occurs to avoid casting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910640531.XA CN110257697B (en) | 2019-07-16 | 2019-07-16 | High-wear-resistance and heat-resistance casting for grate plate of grate cooler and casting process of casting |
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| CN201910640531.XA CN110257697B (en) | 2019-07-16 | 2019-07-16 | High-wear-resistance and heat-resistance casting for grate plate of grate cooler and casting process of casting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074065A (en) * | 2019-12-31 | 2020-04-28 | 安徽马钢输送设备制造有限公司 | Precoated sand sintering grate bar for sintering pallet and process |
| CN114393178A (en) * | 2022-01-26 | 2022-04-26 | 安徽合力股份有限公司合肥铸锻厂 | Static pressure casting process of brake wheel shell casting |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042193A (en) * | 1989-11-23 | 1990-05-16 | 昆明钢铁公司 | High-chromium alloy cast-iron and thermal treatment process thereof and application |
| CN101012526A (en) * | 2007-02-15 | 2007-08-08 | 济南金品磁业有限公司 | Rare earth multicomponent micro-alloying high-chromium cast iron and uses thereof |
| CN101690903A (en) * | 2009-08-14 | 2010-04-07 | 淮阴工学院 | Fracture-free high-chromium cast iron crusher hammer and manufacturing method thereof |
| CN102560232A (en) * | 2012-03-06 | 2012-07-11 | 长沙学院 | Hypoeutectic high-chromium cast iron for slurry pump blade and heat treatment process |
| CN103088249A (en) * | 2013-01-23 | 2013-05-08 | 驻马店市永诚耐磨材料有限公司 | Abrasion-resistant alloy cast iron material with high hardness for chute lining plate, and preparation method thereof |
| CN103695759A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Wear resisting cast iron abrasive disc |
| CN104178703A (en) * | 2014-08-10 | 2014-12-03 | 无棣向上机械设计服务有限公司 | Novel metallic material |
| CN104498814A (en) * | 2014-12-19 | 2015-04-08 | 淮北众力矿山机械制造有限责任公司 | Chromium alloy cast iron and preparation and treatment methods thereof |
| CN104907134A (en) * | 2015-05-29 | 2015-09-16 | 芜湖银海机械制造有限公司 | Wear-resisting crusher hammer head with adjustable installation site and manufacture method thereof |
| CN105112791A (en) * | 2015-09-21 | 2015-12-02 | 无锡清杨机械制造有限公司 | Novel metallic material and preparation method thereof |
| CN105671416A (en) * | 2015-12-07 | 2016-06-15 | 铜陵市明诚铸造有限责任公司 | Low-density cast iron material for bearing of electric automobile |
| CN108546869A (en) * | 2018-05-14 | 2018-09-18 | 合肥东方节能科技股份有限公司 | A kind of energetic ion slitting wheel alloy material |
| CN109963984A (en) * | 2016-11-17 | 2019-07-02 | 斗山英维高株式会社 | Engineering machinery scraper bowl accessory and its manufacturing method |
-
2019
- 2019-07-16 CN CN201910640531.XA patent/CN110257697B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042193A (en) * | 1989-11-23 | 1990-05-16 | 昆明钢铁公司 | High-chromium alloy cast-iron and thermal treatment process thereof and application |
| CN101012526A (en) * | 2007-02-15 | 2007-08-08 | 济南金品磁业有限公司 | Rare earth multicomponent micro-alloying high-chromium cast iron and uses thereof |
| CN101690903A (en) * | 2009-08-14 | 2010-04-07 | 淮阴工学院 | Fracture-free high-chromium cast iron crusher hammer and manufacturing method thereof |
| CN102560232A (en) * | 2012-03-06 | 2012-07-11 | 长沙学院 | Hypoeutectic high-chromium cast iron for slurry pump blade and heat treatment process |
| CN103088249A (en) * | 2013-01-23 | 2013-05-08 | 驻马店市永诚耐磨材料有限公司 | Abrasion-resistant alloy cast iron material with high hardness for chute lining plate, and preparation method thereof |
| CN103695759A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Wear resisting cast iron abrasive disc |
| CN104178703A (en) * | 2014-08-10 | 2014-12-03 | 无棣向上机械设计服务有限公司 | Novel metallic material |
| CN104498814A (en) * | 2014-12-19 | 2015-04-08 | 淮北众力矿山机械制造有限责任公司 | Chromium alloy cast iron and preparation and treatment methods thereof |
| CN104907134A (en) * | 2015-05-29 | 2015-09-16 | 芜湖银海机械制造有限公司 | Wear-resisting crusher hammer head with adjustable installation site and manufacture method thereof |
| CN105112791A (en) * | 2015-09-21 | 2015-12-02 | 无锡清杨机械制造有限公司 | Novel metallic material and preparation method thereof |
| CN105671416A (en) * | 2015-12-07 | 2016-06-15 | 铜陵市明诚铸造有限责任公司 | Low-density cast iron material for bearing of electric automobile |
| CN109963984A (en) * | 2016-11-17 | 2019-07-02 | 斗山英维高株式会社 | Engineering machinery scraper bowl accessory and its manufacturing method |
| CN108546869A (en) * | 2018-05-14 | 2018-09-18 | 合肥东方节能科技股份有限公司 | A kind of energetic ion slitting wheel alloy material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074065A (en) * | 2019-12-31 | 2020-04-28 | 安徽马钢输送设备制造有限公司 | Precoated sand sintering grate bar for sintering pallet and process |
| CN114393178A (en) * | 2022-01-26 | 2022-04-26 | 安徽合力股份有限公司合肥铸锻厂 | Static pressure casting process of brake wheel shell casting |
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| CN110257697B (en) | 2021-04-09 |
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