CN109136729A - A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance - Google Patents
A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance Download PDFInfo
- Publication number
- CN109136729A CN109136729A CN201810779132.7A CN201810779132A CN109136729A CN 109136729 A CN109136729 A CN 109136729A CN 201810779132 A CN201810779132 A CN 201810779132A CN 109136729 A CN109136729 A CN 109136729A
- Authority
- CN
- China
- Prior art keywords
- iron
- spheroidal graphite
- graphite cast
- preparation
- surplus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
-
- 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
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of preparation methods of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of its each chemical constituent are as follows: carbon 3.5-3.6%, silicon 2-2.2%, manganese 0.5-0.6%, vanadium 0.2-0.3%, tungsten 0.6-0.8%, antimony 0.02-0.04%, molybdenum 0.5-0.6%, rare earth 0.01-0.04%, phosphorus≤0.04%, sulphur≤0.01%, surplus are Fe and inevitable impurity.The present invention by melting, casting, heat treatment and etc. be made, improved by reasonable technological parameter and formula composition, spheroidal graphite cast-iron obtained has good wear-resisting property, extends the service life of spheroidal graphite cast-iron.
Description
Technical field
The present invention relates to casting technology fields, more particularly to a kind of preparation side of the spheroidal graphite cast-iron of high-wear resistance
Method.
Background technique
Spheroidal graphite cast-iron is that have excellent power by breeding the cast iron materials with globular graphite obtained with spheroidising
The advantages that learning performance, processing performance, wear-resisting property, shock-absorbing performance and lower production costs, its comprehensive performance are similar to steel, just
It is to make it be successfully used to cast some stress complexity, intensity, toughness, wearability are more demanding because of its excellent performance
Part such as auto-parts, cast iron pipe fittings, wind-powered electricity generation components, machine tool accessory, engine crankshaft etc..
The wear-resisting property of spheroidal graphite cast-iron in the prior art is not high enough, is not able to satisfy actual requirement of engineering increasingly.
Summary of the invention
In order to make up the defect of prior art, the present invention provides a kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of each chemical constituent of the spheroidal graphite cast-iron are as follows: carbon
It is 3.5-3.6%, silicon 2-2.2%, manganese 0.5-0.6%, vanadium 0.2-0.3%, tungsten 0.6-0.8%, antimony 0.02-0.04%, molybdenum 0.5-0.6%, dilute
Native 0.01-0.04%, phosphorus≤0.04%, sulphur≤0.01%, surplus are Fe and inevitable impurity.
Further, preparation method includes the following steps:
S1. raw material melting: carrying out ingredient according to the component of alloy and content, first fills carburant, the pig iron, steel scrap, ferrotungsten, molybdenum-iron
Enter in medium-frequency induction furnace, is removed the gred, skimmed after being all melt into iron liquid, kept the temperature, spectral component analysis, when bonded hard ferrite magnet liter
Manganese iron, ferrosilicon, vanadium iron are added when to 1440 DEG C -1480 DEG C；
S2. spheroidising and inoculation: being added nodulizer in nodularization packet, and covering accounts for iron liquid total weight 0.4- on nodulizer
0.6% the first inovulant covers cheet scrap on the first inovulant, and consolidation pours iron liquid, and bonded hard ferrite magnet is 1400-1430 DEG C,
After completing spheroidising and Bao Nei inoculation, add in the second inovulant carry out type of iron liquid total weight 0.4%-0.6%
It breeds；
S3. it is poured: being poured, random inoculant is added while casting and carries out current-following inoculation；
S4. it is heat-treated: the casting after casting complete being warming up to 900-910 DEG C, keeps the temperature 3-4h, is dropped with the speed of 6-9 DEG C/min
Temperature keeps the temperature 3-5h, is air-cooled to room temperature to 650-700 DEG C；Casting after will be air-cooled is warming up to 890-920 DEG C, with 13-15 DEG C/min
Speed be cooled to 400-450 DEG C, carry out stress relief annealing after being air-cooled to room temperature, obtain the spheroidal graphite cast-iron.
Further, the nodulizer is made of following weight percent composition: carbon 42-45%, calcium 0.8-1.2%, barium
1-1.5%, magnesium 5.5-6.5%, rare earth 0.8-1.0%, aluminium < 1.2%, surplus Fe.
Further, the granularity of the nodulizer is 5-30mm.
Further, first inovulant is made of following weight percent composition: silicon 55-70%, zirconium 0.8-
3.2%, niobium 1.2-2.5%, calcium 2.8-5.5%, barium 1.85-3.58%, magnesium≤0.15%, aluminium≤0.2%, manganese≤
0.26%, sulphur≤0.02%, phosphorus≤0.05%, surplus are iron.
Further, second inovulant is made of following weight percent composition: silicon 60-70%, barium 2-6%, calcium
0.5-2.0%, aluminium 1-2%, surplus are iron.
Further, the random inoculant is made of following weight percent composition: silicon 73-78%, zirconium 1.0-
1.5%, strontium 0.8-1.2%, calcium≤0.1%, aluminium≤0.5%, surplus Fe.
Further, the random inoculant accounts for the 0.1-0.2% of iron liquid total weight.
The invention has the following beneficial effects:
The present invention by melting, casting, heat treatment and etc. be made, improved by reasonable technological parameter and formula composition, system
The spheroidal graphite cast-iron obtained has good wear-resisting property, extends the service life of spheroidal graphite cast-iron.
Specific embodiment
The present invention will now be described in detail with reference to examples, and the examples are only preferred embodiments of the present invention,
It is not limitation of the invention.
Embodiment 1
A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of each chemical constituent of the spheroidal graphite cast-iron are as follows: carbon
3.5%, silicon 2.1%, manganese 0.5%, vanadium 0.2%, tungsten 0.7%, antimony 0.03%, molybdenum 0.55%, rare earth 0.03%, phosphorus≤0.04%, sulphur≤
0.01%, surplus is Fe and inevitable impurity.
Preparation method includes the following steps:
S1. raw material melting: carrying out ingredient according to the component of alloy and content, first fills carburant, the pig iron, steel scrap, ferrotungsten, molybdenum-iron
Enter in medium-frequency induction furnace, is removed the gred, skimmed after being all melt into iron liquid, kept the temperature, spectral component analysis, when bonded hard ferrite magnet liter
Manganese iron, ferrosilicon, vanadium iron are added when to 1460 DEG C；
S2. spheroidising and inoculation: being added nodulizer in nodularization packet, and covering accounts for iron liquid total weight 0.5% on nodulizer
The first inovulant, cheet scrap is covered on the first inovulant, consolidation pours iron liquid, and bonded hard ferrite magnet is 1420 DEG C, completes at nodularization
In reason and packet after inoculation, the second inovulant for adding iron liquid total weight 0.5% carries out mould cavity inoculation；
S3. it is poured: being poured, the 0.15% random inoculant progress for accounting for iron liquid total weight is added while casting with stream
It breeds；
S4. it is heat-treated: the casting after casting complete being warming up to 905 DEG C, 3.5h is kept the temperature, is cooled to 670 with the speed of 8 DEG C/min
DEG C, 4h is kept the temperature, room temperature is air-cooled to；Casting after will be air-cooled is warming up to 900 DEG C, is cooled to 420 DEG C with the speed of 14 DEG C/min, sky
Stress relief annealing is carried out after being cooled to room temperature, obtains the spheroidal graphite cast-iron.
Wherein, the nodulizer is made of following weight percent composition: carbon 43%, calcium 1%, barium 1.2%, magnesium 6%, dilute
Soil 0.9%, aluminium < 1.2%, surplus Fe；The granularity of the nodulizer is 5-30mm；First inovulant is by following weight hundred
Point than at being grouped as: silicon 62%, zirconium 2%, niobium 2%, calcium 4.2%, barium 2.5%, magnesium≤0.15%, aluminium≤0.2%, manganese≤
0.26%, sulphur≤0.02%, phosphorus≤0.05%, surplus are iron；Second inovulant is made of following weight percent composition:
Silicon 65%, barium 4%, calcium 1.2%, aluminium 1.5%, surplus are iron；The random inoculant is made of following weight percent composition: silicon
75%, zirconium 1.2%, strontium 1%, calcium≤0.1%, aluminium≤0.5%, surplus Fe.
Embodiment 2
A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of each chemical constituent of the spheroidal graphite cast-iron are as follows: carbon
3.5%, silicon 2%, manganese 0.5%, vanadium 0.2%, tungsten 0.6%, antimony 0.02%, molybdenum 0.5%, rare earth 0.01%, phosphorus≤0.04%, sulphur≤0.01%,
Surplus is Fe and inevitable impurity.
Preparation method includes the following steps:
S1. raw material melting: carrying out ingredient according to the component of alloy and content, first fills carburant, the pig iron, steel scrap, ferrotungsten, molybdenum-iron
Enter in medium-frequency induction furnace, is removed the gred, skimmed after being all melt into iron liquid, kept the temperature, spectral component analysis, when bonded hard ferrite magnet liter
Manganese iron, ferrosilicon, vanadium iron are added when to 1440 DEG C；
S2. spheroidising and inoculation: being added nodulizer in nodularization packet, and covering accounts for iron liquid total weight 0.4% on nodulizer
The first inovulant, cheet scrap is covered on the first inovulant, consolidation pours iron liquid, and bonded hard ferrite magnet is 1400 DEG C, completes at nodularization
In reason and packet after inoculation, the second inovulant for adding iron liquid total weight 0.4% carries out mould cavity inoculation；
S3. it is poured: being poured, 0.2% random inoculant that addition accounts for iron liquid total weight while casting carries out pregnant with flowing
It educates；
S4. it is heat-treated: the casting after casting complete being warming up to 900 DEG C, 3h is kept the temperature, is cooled to 650 with the speed of 6 DEG C/min
DEG C, 3h is kept the temperature, room temperature is air-cooled to；Casting after will be air-cooled is warming up to 890 DEG C, is cooled to 400 DEG C with the speed of 13 DEG C/min, sky
Stress relief annealing is carried out after being cooled to room temperature, obtains the spheroidal graphite cast-iron.
Wherein, the nodulizer is made of following weight percent composition: carbon 42%, calcium 0.8%, barium 1%, magnesium 5.5%,
Rare earth 0.8%, aluminium < 1.2%, surplus Fe；The granularity of the nodulizer is 5-30mm；First inovulant is by following weight
Percent composition composition: silicon 55%, zirconium 0.8%, niobium 1.2%, calcium 2.8%, barium 1.85%, magnesium≤0.15%, aluminium≤
0.2%, manganese≤0.26%, sulphur≤0.02%, phosphorus≤0.05%, surplus are iron；Second inovulant is by following weight percent
Than at being grouped as: silicon 60%, barium 2%, calcium 0.5%, aluminium 1%, surplus are iron；The random inoculant is by following weight percent composition
Composition: silicon 73%, zirconium 1.0.5%, strontium 0.8%, calcium≤0.1%, aluminium≤0.5%, surplus Fe.
Embodiment 3
A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of each chemical constituent of the spheroidal graphite cast-iron are as follows: carbon
3.6%, silicon 2.2%, manganese 0.6%, vanadium 0.3%, tungsten 0.8%, antimony 0.04%, molybdenum 0.6%, rare earth 0.04%, phosphorus≤0.04%, sulphur≤
0.01%, surplus is Fe and inevitable impurity.
Preparation method includes the following steps:
S1. raw material melting: carrying out ingredient according to the component of alloy and content, first fills carburant, the pig iron, steel scrap, ferrotungsten, molybdenum-iron
Enter in medium-frequency induction furnace, is removed the gred, skimmed after being all melt into iron liquid, kept the temperature, spectral component analysis, when bonded hard ferrite magnet liter
Manganese iron, ferrosilicon, vanadium iron are added when to 1480 DEG C；
S2. spheroidising and inoculation: being added nodulizer in nodularization packet, and covering accounts for iron liquid total weight 0.6% on nodulizer
The first inovulant, cheet scrap is covered on the first inovulant, consolidation pours iron liquid, and bonded hard ferrite magnet is 1430 DEG C, completes at nodularization
In reason and packet after inoculation, the second inovulant for adding iron liquid total weight 0.6% carries out mould cavity inoculation；
S3. it is poured: being poured, 0.1% random inoculant that addition accounts for iron liquid total weight while casting carries out pregnant with flowing
It educates；
S4. it is heat-treated: the casting after casting complete being warming up to 910 DEG C, 4h is kept the temperature, is cooled to 700 with the speed of 9 DEG C/min
DEG C, 5h is kept the temperature, room temperature is air-cooled to；Casting after will be air-cooled is warming up to 920 DEG C, is cooled to 450 DEG C with the speed of 15 DEG C/min, sky
Stress relief annealing is carried out after being cooled to room temperature, obtains the spheroidal graphite cast-iron.
Wherein, the nodulizer is made of following weight percent composition: carbon 45%, calcium 1.2%, barium 1.5%, magnesium
6.5%, rare earth 1.0%, aluminium < 1.2%, surplus Fe；The granularity of the nodulizer is 5-30mm；First inovulant by with
Lower weight percent composition composition: silicon 70%, zirconium 3.2%, niobium 2.5%, calcium 5.5%, barium 3.58%, magnesium≤0.15%, aluminium
≤ 0.2%, manganese≤0.26%, sulphur≤0.02%, phosphorus≤0.05%, surplus are iron；Second inovulant is by following weight hundred
Point than at being grouped as: silicon 70%, barium 6%, calcium 2.0%, aluminium 2%, surplus are iron；The random inoculant by following weight percent at
It is grouped as: silicon 78%, zirconium 1.5%, strontium 1.2%, calcium≤0.1%, aluminium≤0.5%, surplus Fe.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as skill obtained in the form of equivalent substitutions or equivalent transformations
Art scheme should all be fallen within the scope and spirit of the invention.
Claims (7)
1. a kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance, the weight percent of each chemical constituent of the spheroidal graphite cast-iron are as follows:
Carbon 3.5-3.6%, silicon 2-2.2%, manganese 0.5-0.6%, vanadium 0.2-0.3%, tungsten 0.6-0.8%, antimony 0.02-0.04%, molybdenum 0.5-0.6%,
Rare earth 0.01-0.04%, phosphorus≤0.04%, sulphur≤0.01%, surplus are Fe and inevitable impurity.
2. the preparation method of spheroidal graphite cast-iron as described in claim 1, which is characterized in that preparation method includes the following steps:
S1. raw material melting: carrying out ingredient according to the component of alloy and content, first fills carburant, the pig iron, steel scrap, ferrotungsten, molybdenum-iron
Enter in medium-frequency induction furnace, is removed the gred, skimmed after being all melt into iron liquid, kept the temperature, spectral component analysis, when bonded hard ferrite magnet liter
Manganese iron, ferrosilicon, vanadium iron are added when to 1440 DEG C -1480 DEG C；
S2. spheroidising and inoculation: being added nodulizer in nodularization packet, and covering accounts for iron liquid total weight 0.4- on nodulizer
0.6% the first inovulant covers cheet scrap on the first inovulant, and consolidation pours iron liquid, and bonded hard ferrite magnet is 1400-1430 DEG C,
After completing spheroidising and Bao Nei inoculation, add in the second inovulant carry out type of iron liquid total weight 0.4%-0.6%
It breeds；
S3. it is poured: being poured, random inoculant is added while casting and carries out current-following inoculation；
S4. it is heat-treated: the casting after casting complete being warming up to 900-910 DEG C, keeps the temperature 3-4h, is dropped with the speed of 6-9 DEG C/min
Temperature keeps the temperature 3-5h, is air-cooled to room temperature to 650-700 DEG C；Casting after will be air-cooled is warming up to 890-920 DEG C, with 13-15 DEG C/min
Speed be cooled to 400-450 DEG C, carry out stress relief annealing after being air-cooled to room temperature, obtain the spheroidal graphite cast-iron.
3. the preparation method of spheroidal graphite cast-iron as claimed in claim 2, the nodulizer is made of following weight percent composition:
Carbon 42-45%, calcium 0.8-1.2%, barium 1-1.5%, magnesium 5.5-6.5%, rare earth 0.8-1.0%, aluminium < 1.2%, surplus Fe.
4. the preparation method of spheroidal graphite cast-iron as claimed in claim 2, the granularity of the nodulizer is 5-30mm.
5. the preparation method of spheroidal graphite cast-iron as claimed in claim 2, first inovulant is by following weight percent composition
Composition: silicon 55-70%, zirconium 0.8-3.2%, niobium 1.2-2.5%, calcium 2.8-5.5%, barium 1.85-3.58%, magnesium≤
0.15%, aluminium≤0.2%, manganese≤0.26%, sulphur≤0.02%, phosphorus≤0.05%, surplus are iron.
6. the preparation method of spheroidal graphite cast-iron as claimed in claim 2, second inovulant is by following weight percent composition
Composition: silicon 60-70%, barium 2-6%, calcium 0.5-2.0%, aluminium 1-2%, surplus are iron.
7. the preparation method of spheroidal graphite cast-iron as claimed in claim 2, the random inoculant is by following weight percent composition
Composition: silicon 73-78%, zirconium 1.0-1.5%, strontium 0.8-1.2%, calcium≤0.1%, aluminium≤0.5%, surplus Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779132.7A CN109136729A (en) | 2018-07-16 | 2018-07-16 | A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779132.7A CN109136729A (en) | 2018-07-16 | 2018-07-16 | A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109136729A true CN109136729A (en) | 2019-01-04 |
Family
ID=64800644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779132.7A Pending CN109136729A (en) | 2018-07-16 | 2018-07-16 | A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109136729A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549272A (en) * | 2020-05-16 | 2020-08-18 | 江苏金玉龙铁路器材有限公司 | Preparation method of novel nodular cast iron railway turnout fitting |
| CN111910119A (en) * | 2020-07-23 | 2020-11-10 | 长泰县海力机械制造有限公司 | High-toughness nodular cast iron and preparation method thereof |
| CN112680649A (en) * | 2020-12-07 | 2021-04-20 | 安徽省隆兴铸造有限公司 | Nodular cast iron for valve casting and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878285A (en) * | 2015-05-12 | 2015-09-02 | 含山县兴达球墨铸铁厂 | High-strength wear-resisting casting material for hydraulic wrench piston and preparation method thereof |
| CN105401064A (en) * | 2015-11-28 | 2016-03-16 | 西峡县西泵特种铸造有限公司 | Medium silicon molybdenum nodular cast iron and production method thereof |
| CN105436474A (en) * | 2015-11-12 | 2016-03-30 | 丹阳恒庆复合材料科技有限公司 | Manufacturing technique and device for improved bainite nodular cast iron composite roller provided with forged steel roller neck |
| CN105618715A (en) * | 2016-01-12 | 2016-06-01 | 安徽环渤湾高速钢轧辊有限公司 | Abrasion-resistance high-speed steel composite roller and preparation method thereof |
| CN105886883A (en) * | 2016-05-31 | 2016-08-24 | 含山县兴达球墨铸铁厂 | Efficient inoculant, preparation method thereof and application of efficient inoculant in nodular cast iron |
| CN105970076A (en) * | 2016-06-27 | 2016-09-28 | 含山县兴达球墨铸铁厂 | High-strength low-temperature-resisting spheroidal graphite cast iron and preparing method thereof |
-
2018
- 2018-07-16 CN CN201810779132.7A patent/CN109136729A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878285A (en) * | 2015-05-12 | 2015-09-02 | 含山县兴达球墨铸铁厂 | High-strength wear-resisting casting material for hydraulic wrench piston and preparation method thereof |
| CN105436474A (en) * | 2015-11-12 | 2016-03-30 | 丹阳恒庆复合材料科技有限公司 | Manufacturing technique and device for improved bainite nodular cast iron composite roller provided with forged steel roller neck |
| CN105401064A (en) * | 2015-11-28 | 2016-03-16 | 西峡县西泵特种铸造有限公司 | Medium silicon molybdenum nodular cast iron and production method thereof |
| CN105618715A (en) * | 2016-01-12 | 2016-06-01 | 安徽环渤湾高速钢轧辊有限公司 | Abrasion-resistance high-speed steel composite roller and preparation method thereof |
| CN105886883A (en) * | 2016-05-31 | 2016-08-24 | 含山县兴达球墨铸铁厂 | Efficient inoculant, preparation method thereof and application of efficient inoculant in nodular cast iron |
| CN105970076A (en) * | 2016-06-27 | 2016-09-28 | 含山县兴达球墨铸铁厂 | High-strength low-temperature-resisting spheroidal graphite cast iron and preparing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈琦: "《实用铸造手册》", 31 August 2009, 中国电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549272A (en) * | 2020-05-16 | 2020-08-18 | 江苏金玉龙铁路器材有限公司 | Preparation method of novel nodular cast iron railway turnout fitting |
| CN111910119A (en) * | 2020-07-23 | 2020-11-10 | 长泰县海力机械制造有限公司 | High-toughness nodular cast iron and preparation method thereof |
| CN112680649A (en) * | 2020-12-07 | 2021-04-20 | 安徽省隆兴铸造有限公司 | Nodular cast iron for valve casting and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104988381B (en) | Large-section cast ferrite nodular cast iron and preparation method thereof | |
| CN104120332B (en) | High-intensity high-tenacity spheroidal graphite cast-iron 600-10 and production technology thereof | |
| CN108396219B (en) | Cast high-strength nodular cast iron for crankshaft and preparation method thereof | |
| CN110894582B (en) | High-strength and high-heat-conductivity vermicular graphite cast iron and preparation method thereof | |
| CN109136729A (en) | A kind of preparation method of the spheroidal graphite cast-iron of high-wear resistance | |
| CN105506442B (en) | A kind of Si Mn alloyings wear-resisting ductile iron abrading-ball and preparation method thereof | |
| CN105039839A (en) | Manufacturing method for nodular cast iron used for crankshaft | |
| CN105369119B (en) | A kind of ironcasting material and its production technology | |
| CN105401064A (en) | Medium silicon molybdenum nodular cast iron and production method thereof | |
| CN103243236B (en) | High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same | |
| CN105970077B (en) | A kind of spheroidal graphite cast-iron of high-intensity high-tenacity and preparation method thereof | |
| CN107435117A (en) | A kind of breaking type ferrite adds the high tough spheroidal graphite cast-iron and its production method of pearlitic texture | |
| CN102400032B (en) | Large-cross-section nodular cast iron | |
| CN112680650A (en) | High-strength nodular cast iron and preparation method thereof | |
| CN106591695A (en) | High strength and tenacity ferrite base vermicular graphite cast iron material and preparing method thereof | |
| CN108588548A (en) | A kind of preparation method of heat-resisting spheroidal graphite cast-iron | |
| CN106011360A (en) | Smelting technology of high-strength low-stress gray pig iron | |
| CN105970084B (en) | A kind of strain clamp and preparation method thereof | |
| CN114318115A (en) | Nodular cast iron material and preparation method thereof | |
| CN108796359A (en) | A kind of spheroidal graphite cast-iron of high-wear resistance | |
| CN108624805A (en) | A kind of heat-resisting spheroidal graphite cast-iron | |
| CN106811677A (en) | A kind of piston ring carrier cast iron materials and its manufacture method | |
| CN109852877B (en) | Nodular cast iron alloy and preparation method thereof | |
| CN105039833B (en) | Ferrovanadium chromium antifriction alloy and preparation method thereof | |
| CN109136727A (en) | A kind of high performance spheroidal graphite cast-iron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |