CN1943861A - Method for producing high chromium tungsten-containing composite anti-wear roll ring - Google Patents
Method for producing high chromium tungsten-containing composite anti-wear roll ring Download PDFInfo
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- CN1943861A CN1943861A CN 200610117306 CN200610117306A CN1943861A CN 1943861 A CN1943861 A CN 1943861A CN 200610117306 CN200610117306 CN 200610117306 CN 200610117306 A CN200610117306 A CN 200610117306A CN 1943861 A CN1943861 A CN 1943861A
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- Prior art keywords
- iron
- high chromium
- chromium tungsten
- composite
- cast iron
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- 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.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 26
- QNHZQZQTTIYAQM-UHFFFAOYSA-N chromium tungsten Chemical compound [Cr][W] QNHZQZQTTIYAQM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 12
- 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
- 238000005496 tempering Methods 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
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 235000000396 iron Nutrition 0.000 claims description 2
- 239000011651 chromium Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 239000011449 brick Substances 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 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
- 239000011572 manganese Substances 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000011733 molybdenum 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
- 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 high 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 high 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 double-rolle roller rim, 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 ZL94100942.4, its composition is: Cr11.0-14.5%, 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: Cr14-16%, Mo 1.9-2.2%, Cu 0.5-1.2%, Mn 0.6-0.9%, C 2.8-3.5%, 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.
Some is still 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 high chromium tungsten-containing composite anti-wear roll ring of the present invention 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 high-strength common spheroidal graphite cast-iron; Cladding material is the high chromium tungsten-containing alloy cast iron, the chemical composition of high chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr 12～20%, W 1.0～3.0%, and C 2.2～3.4%, and Cu 0.6～1.5%, Mn 0.4～1.4%, Rare-Earth Ce 0.1%, Si≤0.7%, P≤0.1%, S≤0.06%, the Fe surplus;
B. carry out the composite centrifugal casting: with intermediate frequency furnace or above-mentioned high 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 1400～1500 ℃ that the opening of high chromium tungsten-containing alloy cast iron watered temperature, and the high chromium tungsten-containing alloy cast iron pours into the back and adds covering slag, has watered whole high 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:, heat-treat then the above-mentioned composite roll circle demoulding that makes.Furnace temperature rises to 900 ℃ of ℃ of rollers in advance and enspheres behind the stove with 20～80 ℃ programming rate per hour and slowly be heated to 980 ℃, and after being incubated 4 hours with the roller circle by taking out in the stove, air-cooled to 500 ℃; Put into then and be preheating to 400～500 ℃ tempering furnace, cool off with stove; After treating that the roller circle is cooled to 80～120 ℃ in tempering furnace, slowly be heated to 400～550 ℃ with 20～50 ℃ programming rate per hour again, and be incubated 2～4 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 to adopt tungsten to replace molybdenum, has not only reduced cost, and has improved performance.An amount of adding of tungsten can improve the hardness of goods, and refinement carbide and matrix; High chromium can improve in the goods carbide quantity and change its type, thereby improves the hardness and the toughness of antifriction cast iron.But the adding purifying molten iron of a small amount of Rare-Earth Ce is improved the flowability of iron liquid, simultaneously can also the refinement structure of cast iron.
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, the double-rolle roller rim of manufacturing is of a size of: external diameter 700mm, width 500mm, thickness 70mm; Its ectomesoderm high 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 high chromium tungsten-containing alloy cast iron; The chemical composition of high chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr 16%, and W 2.0%, and C 2.4%, and Cu 0.6%, and Mn 0.8%, Rare-Earth Ce 0.1%, and Si 0.7%, P≤0.03%, S≤0.03%, Fe surplus;
(2) carry out the composite centrifugal casting: with above-mentioned high 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 1456 ℃ that the opening of high chromium tungsten-containing alloy cast iron watered temperature, adds covering slag after pouring into iron liquid, has watered whole iron liquid then; When treating that its surface temperature is cooled to 1000 ℃, begin to pour into a mould spheroidal graphite cast-iron; 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:, heat-treat then the demoulding of above-mentioned prepared composite roll circle.Furnace temperature rises to 900 ℃ in advance; Roller enspheres behind the stove with 40 ℃ programming rate per hour and slowly is heated to 980 ℃, and after being incubated 4 hours with the roller circle by taking out in the stove, air-cooled to 500 ℃, put into then and be preheating to 500 ℃ tempering furnace, cool off with stove; After treating that the roller circle is cooled to 100 ℃ in tempering furnace, slowly be heated to 550 ℃ with 40 ℃ programming rate per hour again, and be incubated 4 hours, cool to room temperature then with the furnace and come out of the stove.Finally make high chromium tungsten-containing composite anti-wear roll ring.
Claims (1)
1. the manufacture method of a high chromium tungsten-containing composite anti-wear roll ring is characterized in that having following technical process and step:
A) definite 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 high-strength common spheroidal graphite cast-iron; Cladding material is
The high chromium tungsten-containing alloy cast iron, the chemical composition of high chromium tungsten-containing alloy cast iron and weight percentage thereof are: Cr12～20%, W 1.0～3.0%, and C 2.2～3.4%, Cu 0.6～1.5%, and Mn 0.4～1.4%, Rare-Earth Ce 0.1%, Si≤0.7%, P≤0.1%, S≤0.06%, Fe surplus;
B) carry out the composite centrifugal casting: with intermediate frequency furnace or above-mentioned high 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 1400～1500 ℃ that the opening of high chromium tungsten-containing alloy cast iron watered temperature, and the high chromium tungsten-containing alloy cast iron pours into the back and adds covering slag, has watered whole high 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:, heat-treat then the above-mentioned composite roll circle demoulding that makes.Furnace temperature rises to 900 ℃ in advance.Roller enspheres behind the stove with 20～80 ℃ programming rate per hour and slowly is heated to 980 ℃, and after being incubated 4～8 hours with the roller circle by taking out in the stove, air-cooled to 500 ℃; Put into then and be preheating to 400～500 ℃ tempering furnace, cool off with stove; After treating that the roller circle is cooled to 80～120 ℃ in tempering furnace, slowly be heated to 400～550 ℃ with 20～50 ℃ programming rate per hour again, and be incubated 2～4 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 |
|---|---|---|---|
| CNB2006101173060A CN100382892C (en) | 2006-10-19 | 2006-10-19 | Method for producing high chromium tungsten-containing composite anti-wear roll ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101173060A CN100382892C (en) | 2006-10-19 | 2006-10-19 | Method for producing high chromium tungsten-containing composite anti-wear roll ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1943861A true CN1943861A (en) | 2007-04-11 |
| CN100382892C CN100382892C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101173060A Expired - Fee Related CN100382892C (en) | 2006-10-19 | 2006-10-19 | Method for producing high chromium tungsten-containing composite anti-wear roll ring |
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| Country | Link |
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| CN (1) | CN100382892C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708539B (en) * | 2009-11-03 | 2011-06-08 | 上海大学 | Manufacture method of multi-element chilled cast iron anti-wear roller ring |
| CN102917798A (en) * | 2010-06-18 | 2013-02-06 | Khd洪保德韦达克有限公司 | Profiled binding for a roller press |
| CN103386476A (en) * | 2013-06-04 | 2013-11-13 | 德州宏森机械有限公司 | Composite double-metal vertical roller mill grinding roller and manufacturing process |
| CN104174832A (en) * | 2014-07-07 | 2014-12-03 | 宜昌船舶柴油机有限公司 | Casting method for wear-resistant grinding roll |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05320747A (en) * | 1992-05-21 | 1993-12-03 | Kubota Corp | Production of highly wear resistant roll |
| CN1040342C (en) * | 1994-02-01 | 1998-10-21 | 北京科技大学 | Prodn. technique of compound wear resistant double-rolle roller rim |
| CN1065922C (en) * | 1998-01-23 | 2001-05-16 | 中南工业大学 | Chromium-manganese-tungsten wear resisting cast iron |
| CN1149298C (en) * | 2000-03-24 | 2004-05-12 | 冶金工业部钢铁研究总院 | High-speed antiwear cast steel |
| AU2003902535A0 (en) * | 2003-05-22 | 2003-06-05 | Weir Warman Ltd | Wear resistant cast iron |
| CN2657775Y (en) * | 2003-11-27 | 2004-11-24 | 武汉智科耐磨材料科技发展有限公司 | Bimetal composite casting abrasion-resistant hammerhead |
-
2006
- 2006-10-19 CN CNB2006101173060A patent/CN100382892C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708539B (en) * | 2009-11-03 | 2011-06-08 | 上海大学 | Manufacture method of multi-element chilled cast iron anti-wear roller ring |
| CN102917798A (en) * | 2010-06-18 | 2013-02-06 | Khd洪保德韦达克有限公司 | Profiled binding for a roller press |
| CN102917798B (en) * | 2010-06-18 | 2014-11-05 | Khd洪保德韦达克有限公司 | Profiled binding for roller press, manufacturing method thereof, and application of profiled binding producted by alloy |
| CN103386476A (en) * | 2013-06-04 | 2013-11-13 | 德州宏森机械有限公司 | Composite double-metal vertical roller mill grinding roller and manufacturing process |
| CN103386476B (en) * | 2013-06-04 | 2017-06-30 | 德州宏森机械有限公司 | A kind of bimetal composite vertical grinder roll and manufacture craft |
| CN104174832A (en) * | 2014-07-07 | 2014-12-03 | 宜昌船舶柴油机有限公司 | Casting method for wear-resistant grinding roll |
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| Publication number | Publication date |
|---|---|
| CN100382892C (en) | 2008-04-23 |
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Free format text: CORRECT: ADDRESS; FROM: 200444 BAOSHAN, SHANGHAI TO: 272300 JINING, SHANDONG PROVINCE |
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Effective date of registration: 20121012 Address after: 272300 Shandong Province Economic Development Zone Jining City Yutai County Patentee after: Jining Antai Mine Equipment Manufacturing Co., Ltd. Address before: 200444 Baoshan District Road, Shanghai, No. 99 Patentee before: Shanghai University Patentee before: Beijing folda wear-resistant material limited liability company |
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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 high chromium tungsten-containing composite anti-wear roll ring Granted publication date: 20080423 License type: Exclusive License Record date: 20120929 |
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Owner name: SHANDONG JINGTAI WEAR-RESISTANT MATERIALS CO., LTD Free format text: FORMER OWNER: JINING ANTAI MINING EQUIPMENT MANUFACTURING CO., LTD. Effective date: 20140208 |
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