CN100408189C - Method for producing medium chromium tungsten-containing composite anti-wear roll ring - Google Patents
Method for producing medium chromium tungsten-containing composite anti-wear roll ring Download PDFInfo
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- CN100408189C CN100408189C CNB2006101173056A CN200610117305A CN100408189C CN 100408189 C CN100408189 C CN 100408189C CN B2006101173056 A CNB2006101173056 A CN B2006101173056A CN 200610117305 A CN200610117305 A CN 200610117305A CN 100408189 C CN100408189 C CN 100408189C
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- iron
- chromium tungsten
- medium chromium
- composite
- cast iron
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- QNHZQZQTTIYAQM-UHFFFAOYSA-N chromium tungsten Chemical compound [Cr][W] QNHZQZQTTIYAQM-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 19
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 238000009750 centrifugal casting Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 235000000396 iron Nutrition 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000011449 brick Substances 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract description 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 15
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011572 manganese Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- JXMHJWIFEMFZDH-UHFFFAOYSA-N [Mn].[Mo].[Cr] Chemical compound [Mn].[Mo].[Cr] JXMHJWIFEMFZDH-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000013630 prepared media Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The present invention relates to production process of medium chromium tungsten-containing composite antiwear roller ring, and belongs to the field of high performance cast iron alloy material and casting producing technology. The production process includes centrifugal composite casting and heat treatment. The composite roller ring has one outer layer of medium chromium tungsten-containing cast iron alloy comprising Cr 12-20 wt%, W 1.0-3.0 wt%, C 2.2-3.4 wt%, Cu 0.6-1.5 wt%, Mn 0.4-1.4 wt%, Ce 0.1 wt%, Si not more than 0.7 wt%, P not more than 0.1 wt%, S not more than 0.06 wt% and Fe for the rest; and one inner layer of high strength nodular cast iron. The composite roller ring has the advantages of high wear resistance, less internal stress, high toughness, long service life and low production cost, and is suitable for use in crushing coal gangue and other hard material in brick making industry.
Description
Technical field
The present invention relates to a kind of manufacture method of medium chromium tungsten-containing composite anti-wear roll ring, belong to the manufacturing process technology field of high-performance cast iron alloy material and foundry goods thereof.
Background technology
The roller circle that is used on the broken or plant equipment double-roll type pulverizer pulverized of hard solid piece material such as gangue and small stone stone is a vitals, the material of this roller circle be have necessarily required, require it to have high-wearing feature, low internal stress, high tenacity, and have higher service life.For the outer field problem of materials of antiwear composite pair roller circle, there is more material optional, also can be indicated in Patent document data.Once reported employing chromium manganese molybdenum cast iron material among the Chinese patent ZL 94100942.4, its composition is: Cr 11.0-14.5%, Mn 0.6-2.8%, Mo 1.0-1.9%, C 1.9-2.6%, Cu 0.9-1.5%, V 0.08-0.20%, rare earth elements RE 0.01-0.02%, Fe surplus.The high chrome molybdenum cast iron composition that U.S. Climax company proposes is: Cr 14-16%, Mo 1.9-2.2%, Cu 0.5-1.2%, Mn 0.6-0.9%, C2.8-3.5%, Fe surplus.Former Soviet Union's wear resistant cast iron composition is: Cr 12-15%, Mo 0.5-0.6%, Mn 3.3-3.9%, C 2.7-3.1%, Fe surplus.
Still some is not ideal enough at aspect of performance for above-mentioned material, is still waiting to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of high-wearing feature, low internal stress, high tenacity, high service life, and have the method for manufacturing technology of the composite anti-wear roll ring of the more excellent ratio of performance to price.
The manufacture method of a kind of centrifugal casting medium chromium tungsten-containing of the present invention composite anti-wear roll ring is characterized in that having following technical process and step:
A. determine and the structure of design composite anti-wear roll ring and the chemical composition of material: the structure of composite anti-wear roll ring is internal layer and the outer composite construction that constitutes; Inner layer material is a spheroidal graphite cast-iron; Cladding material is the medium chromium tungsten-containing alloy cast iron, the chemical composition of medium chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr 4～10%, W 0.5～1.2%, C2.3～3.6%, Mn 0.4～1.4%, and Si 1.0～2.0%, Rare-Earth Ce 0.04～0.12%, P≤0.1%, S≤0.06%, Fe surplus;
B. carry out the composite centrifugal casting: with intermediate frequency furnace or above-mentioned medium chromium tungsten-containing alloy cast iron and the spheroidal graphite cast-iron of arc melting; Adopt centrifugal casting technique, open that the mould temperature is 180～280 ℃ when watering, it is 1300～1450 ℃ that the opening of medium chromium tungsten-containing alloy cast iron watered temperature, and the medium chromium tungsten-containing alloy cast iron pours into the adding covering slag, has watered whole medium chromium tungsten-containing alloy cast irons then; Treat to pour into spheroidal graphite cast-iron after its surface temperature is cooled to 850～1000 ℃; It is 1300～1400 ℃ that the opening of spheroidal graphite cast-iron watered temperature; Treat that spheroidal graphite cast-iron solidifies the back fully and shuts down;
C. heat-treat: the above-mentioned composite roll circle demoulding that makes is air-cooled subsequently to 350～450 ℃, carry out Quenching Treatment, put into then and be preheating to 350～450 ℃ tempering furnace, be warming up to 380～500 ℃, and kept 4 hours, cool to room temperature then with the furnace and come out of the stove.
The characteristics of the inventive method are: it is incomplete same that its chemical composition of the cladding material of composite roll circle is compared with the past like product, mainly is the content that has reduced chromium, and has replaced molybdenum with tungsten, has not only reduced cost, and has improved performance.The prepared medium chromium tungsten-containing composite roll of the inventive method circle, though contain molybdenum composite roll circle a little less than high chromium tungsten-containing composite roll circle and Gao Ge service life, it has more performance price ratio.The adding of chromium and tungsten can improve its hardness and refinement carbide and matrix, thereby improves the hardness and the toughness of antifriction cast iron.The adding of Rare-Earth Ce can purify casting liquid, improves the flowability of iron liquid, but the structure of cast iron of refinement simultaneously.
The inventive method has solved the contradiction of roller circle high-wearing feature and high-strength tenacity by two kinds of metal composite castings.This roller circle can be used for the pulverizing processing of hard coal rhabdolith in China's brick-tile industry, and can guarantee brick and tile quality; Improved the manufacture level of technological equipment simultaneously.
The specific embodiment
After now embodiments of the invention being described in.
Embodiment 1
In the present embodiment, make double-rolle roller rim and be of a size of: external diameter 700mm, width 500mm, thickness 70mm; Its ectomesoderm medium chromium tungsten-containing alloy cast iron bed thickness 35mm, internal layer spheroidal graphite cast-iron bed thickness 35mm.
The composite anti-wear roll ring step of manufacturing of present embodiment is as follows:
(1) inner layer material adopts spheroidal graphite cast-iron, and cladding material is the medium chromium tungsten-containing alloy cast iron; The chemical composition of medium chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr 7%, and W 0.8%, and C 3.0%, and Mn 1.2%, and Si 1.4%, Rare-Earth Ce 0.1%, P≤0.03%, S≤0.03%, Fe surplus;
(2) carry out the composite centrifugal casting: with above-mentioned medium chromium tungsten-containing alloy cast iron and the spheroidal graphite cast-iron of arc melting; Adopt centrifugal casting technique, open that the mould temperature is 220 ℃ when watering, it is 1400 ℃ that the opening of medium chromium tungsten-containing alloy cast iron watered temperature, adds covering slag pouring into the back, has watered whole medium chromium tungsten-containing alloy cast irons then; Treat to pour into spheroidal graphite cast-iron after its surface temperature is cooled to 1000 ℃; It is 1340 ℃ that the opening of spheroidal graphite cast-iron watered temperature; Treat that spheroidal graphite cast-iron solidifies the back fully and shuts down;
(3) heat-treat: the demoulding of above-mentioned prepared composite roll circle is air-cooled subsequently to 450 ℃, carry out Quenching Treatment, put into then and be preheating to 450 ℃ tempering furnace, be warming up to 500 ℃, and kept 4 hours, cool to room temperature then with the furnace and come out of the stove.
Claims (1)
1. the manufacture method of a medium chromium tungsten-containing composite anti-wear roll ring is characterized in that having following technical process and step:
A. determine and the structure of design composite anti-wear roll ring and the chemical composition of material: the structure of composite anti-wear roll ring is internal layer and the outer composite construction that constitutes; Inner layer material is a spheroidal graphite cast-iron; Cladding material is the medium chromium tungsten-containing alloy cast iron, the chemical composition of medium chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr 4～10%, W0.5～1.2%, C 2.3～3.6%, and Mn 0.4～1.4%, and Si 1.0～2.0%, Rare-Earth Ce 0.04～0.12%, P≤0.1%, S≤0.06%, Fe surplus;
B. carry out the composite centrifugal casting: with intermediate frequency furnace or above-mentioned medium chromium tungsten-containing alloy cast iron and the spheroidal graphite cast-iron of arc melting; Adopt centrifugal casting technique, open that the mould temperature is 180～280 ℃ when watering, it is 1300～1450 ℃ that the opening of medium chromium tungsten-containing alloy cast iron watered temperature, and the medium chromium tungsten-containing alloy cast iron pours into the back and adds covering slag, has watered whole medium chromium tungsten-containing alloy cast irons then; Treat to pour into spheroidal graphite cast-iron after its surface temperature is cooled to 850～1000 ℃; It is 1300～1400 ℃ that the opening of spheroidal graphite cast-iron watered temperature; Treat that spheroidal graphite cast-iron solidifies the back fully and shuts down;
C. heat-treat: the above-mentioned composite roll circle demoulding that makes is air-cooled subsequently to 350～450 ℃, carry out Quenching Treatment, put into then and be preheating to 350～450 ℃ tempering furnace, be warming up to 380～500 ℃, and kept 4 hours, cool to room temperature then with the furnace and come out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101173056A CN100408189C (en) | 2006-10-19 | 2006-10-19 | Method for producing medium chromium tungsten-containing composite anti-wear roll ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101173056A CN100408189C (en) | 2006-10-19 | 2006-10-19 | Method for producing medium chromium tungsten-containing composite anti-wear roll ring |
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| CN1943860A CN1943860A (en) | 2007-04-11 |
| CN100408189C true CN100408189C (en) | 2008-08-06 |
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| CNB2006101173056A Expired - Fee Related CN100408189C (en) | 2006-10-19 | 2006-10-19 | Method for producing medium chromium tungsten-containing composite anti-wear roll ring |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670426B (en) * | 2009-10-16 | 2011-01-26 | 西安建筑科技大学 | Method for preparing composite roll of strengthened ductile cast iron with in-situ cladding wearing layer |
| CN102380598A (en) * | 2011-11-02 | 2012-03-21 | 张立庆 | Manufacturing process of piston of hydraulic cylinder |
| CN103736548A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance |
| CN103741014A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Method for preparing cast iron alloy with high wear resistance |
| CN103741013A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance and manufacturing method thereof |
| CN103741010A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Method for manufacturing cast iron alloy roller ring with high wear resistance |
| CN103741012A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy with high wear resistance |
| CN112570688B (en) * | 2020-11-11 | 2021-12-31 | 中北大学 | Solid-liquid forming steel-copper bimetallic material heat treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101949A (en) * | 1994-08-19 | 1995-04-26 | 冶金工业部北京冶金设备研究院 | Low-alloy cast-iron grinding ball and manufacturing method thereof |
| JPH08246103A (en) * | 1995-03-08 | 1996-09-24 | Hitachi Metals Ltd | Steel for cutting tool for woodworking |
| CN1202531A (en) * | 1998-01-23 | 1998-12-23 | 中南工业大学 | Chromium-manganese-tungsten wear resisting cast iron |
-
2006
- 2006-10-19 CN CNB2006101173056A patent/CN100408189C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101949A (en) * | 1994-08-19 | 1995-04-26 | 冶金工业部北京冶金设备研究院 | Low-alloy cast-iron grinding ball and manufacturing method thereof |
| JPH08246103A (en) * | 1995-03-08 | 1996-09-24 | Hitachi Metals Ltd | Steel for cutting tool for woodworking |
| CN1202531A (en) * | 1998-01-23 | 1998-12-23 | 中南工业大学 | Chromium-manganese-tungsten wear resisting cast iron |
Non-Patent Citations (4)
| Title |
|---|
| 新型多元低铬合金铸铁磨球的研制. 符寒光，解培民.水利电力机械，第3期. 1995 |
| 新型多元低铬合金铸铁磨球的研制. 符寒光，解培民.水利电力机械，第3期. 1995 * |
| 高铬铸铁在MPS磨煤机磨辊上的应用. 胡海明，王中兴，李新富，万金峰.铸造. 1995 |
| 高铬铸铁在MPS磨煤机磨辊上的应用. 胡海明，王中兴，李新富，万金峰.铸造. 1995 * |
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| CN1943860A (en) | 2007-04-11 |
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Application publication date: 20070411 Assignee: Jining Antai Mine Equipment Manufacturing Co., Ltd. Assignor: Shanghai University|Beijing folda wear-resistant material limited liability company Contract record no.: 2012370000222 Denomination of invention: Method for producing medium chromium tungsten-containing composite anti-wear roll ring Granted publication date: 20080806 License type: Exclusive License Record date: 20120929 |
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