CN104532110A - High wear resistance cast iron alloy roller ring and manufacturing method thereof - Google Patents
High wear resistance cast iron alloy roller ring and manufacturing method thereof Download PDFInfo
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- CN104532110A CN104532110A CN201410745802.5A CN201410745802A CN104532110A CN 104532110 A CN104532110 A CN 104532110A CN 201410745802 A CN201410745802 A CN 201410745802A CN 104532110 A CN104532110 A CN 104532110A
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- cast iron
- containing chromium
- tungsten alloy
- wear resistance
- chromium tungsten
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Abstract
The present invention relates to a high wear resistance cast iron alloy roller ring and a manufacturing method thereof. The high wear resistance cast iron alloy roller ring comprises a composite structure formed from an inner layer and an outer layer, wherein the inner layer material is high strength general nodular cast iron, the outer layer material is chromium tungsten alloy-containing cast iron, and composite centrifugal casting and heat treatment are performed to obtain the high wear resistance cast iron alloy roller ring. With the cast iron alloy produced through the technical scheme of the present invention, the contradiction between the high wear resistance and the high toughness can be solved, and the quality of the product applying the alloy can be improved.
Description
Technical field
The invention belongs to cast iron alloy field, specifically refer to that one has high-wearing feature, low internal stress, high tenacity, and there is cast iron alloy roller circle and the manufacture method in higher work-ing life.
Background technology
Roller circle on or the mechanical means double-roll type pulverizer pulverized broken for the hard solid block material such as coal gangue and small stone stone is a vitals, the material of this roller circle be have necessarily required, require that it has high-wearing feature, low internal stress, high tenacity, and there is higher work-ing life.For the outer field problem of materials of compound wear resistant pair roller circle, have more material optional, also show in Patent document data.
But in actual use, above-mentioned materials also cannot reach perfect condition on wear resisting property, and some material can realize wear resisting property, but includes a large amount of precious metals or rare metal in the material, and the cost of material is higher.
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 work-ing life, and there is the cast iron alloy material of the more excellent ratio of performance to price.
The present invention is achieved by the following technical solutions:
A kind of Cast iron alloy with high wear resistance roller circle, includes internal layer and the outer composite structure formed; Described inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the tin of the copper of the magnesium of the chromium of 5-8%, the tungsten of 0.5-1.0%, 0.3-0.5%, the scandium of 0.01-0.03%, 0.2-0.3%, the zirconium of 0.03-0.05%, 0.1-0.5%, the carbon of 2.5-3.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity.
Described containing chromium tungsten alloy cast iron, its composition also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage.
A kind of Cast iron alloy with high wear resistance roller circle manufacturing method:
Determine and design the structure of 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 structure formed; Inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the zirconium of the scandium of the carbon of the chromium of 5-8%, the tungsten of 0.5-1.0%, 2.5-3.5%, the magnesium of 0.3-0.5%, 0.01-0.03%, the copper of 0.2-0.3%, 0.03-0.05%, the tin of 0.1-0.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity;
Carry out composite centrifugal casting: with medium-frequency induction furnace or arc melting above-mentioned containing chromium tungsten alloy cast iron and spheroidal graphite cast iron; Adopt centrifugal casting technique, opening mould temperature when watering is 220 ~ 280 DEG C, opens that to water temperature be the casting of 1350 ~ 1450 DEG C of constant temperature containing chromium tungsten alloy cast iron, pours into and adds covering slag, then water full containing chromium tungsten alloy cast iron containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature at the uniform velocity cools, and speed of cooling is no more than 8 DEG C/sec; Spheroidal graphite cast iron is poured into after its surface temperature is cooled to 850 ~ 1000 DEG C; It is 1300 ~ 1400 DEG C that the opening of spheroidal graphite cast iron waters temperature; Shut down after spheroidal graphite cast iron solidifies completely;
Heat-treat: by the above-mentioned obtained composite roll circle demoulding, at the uniform velocity air-cooled to air-cooled to 350 ~ 450 DEG C after being incubated 0.5-1 hour after 550 DEG C-600 DEG C with 3-5 DEG C/sec subsequently, carry out hardening liquid constant temperature quench treatment, then the tempering stove being preheating to 350 ~ 450 DEG C is put into, be warming up to 380 ~ 500 DEG C, and keep 4 hours, then cool to room temperature with the furnace and come out of the stove.
The invention has the beneficial effects as follows:
The cast iron alloy that technical scheme of the present invention is produced can solve the contradictory problems of high-wearing feature and high-strong toughness, improves the quality product of this alloy of application.
Embodiment
A kind of Cast iron alloy with high wear resistance roller circle, includes internal layer and the outer composite structure formed; Described inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the zirconium of the scandium of the carbon of the chromium of 5-8%, the tungsten of 0.5-1.0%, 2.5-3.5%, the magnesium of 0.3-0.5%, 0.01-0.03%, the copper of 0.2-0.3%, 0.03-0.05%, the tin of 0.1-0.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity.
Described containing chromium tungsten alloy cast iron, its composition also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage.
The manufacture method of Cast iron alloy with high wear resistance roller circle is:
Determine and design the structure of 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 structure formed; Inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the zirconium of the scandium of the carbon of the chromium of 5-8%, the tungsten of 0.5-1.0%, 2.5-3.5%, the magnesium of 0.3-0.5%, 0.01-0.03%, the copper of 0.2-0.3%, 0.03-0.05%, the tin of 0.1-0.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity;
Carry out composite centrifugal casting: with medium-frequency induction furnace or arc melting above-mentioned containing chromium tungsten alloy cast iron and spheroidal graphite cast iron; Adopt centrifugal casting technique, opening mould temperature when watering is 220 ~ 280 DEG C, opens that to water temperature be the casting of 1350 ~ 1450 DEG C of constant temperature containing chromium tungsten alloy cast iron, pours into and adds covering slag, then water full containing chromium tungsten alloy cast iron containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature at the uniform velocity cools, and speed of cooling is no more than 8 DEG C/sec; Spheroidal graphite cast iron is poured into after its surface temperature is cooled to 850 ~ 1000 DEG C; It is 1300 ~ 1400 DEG C that the opening of spheroidal graphite cast iron waters temperature; Shut down after spheroidal graphite cast iron solidifies completely;
Heat-treat: by the above-mentioned obtained composite roll circle demoulding, at the uniform velocity air-cooled to air-cooled to 350 ~ 450 DEG C after being incubated 0.5-1 hour after 550 DEG C-600 DEG C with 3-5 DEG C/sec subsequently, carry out hardening liquid constant temperature quench treatment, then the tempering stove being preheating to 350 ~ 450 DEG C is put into, be warming up to 380 ~ 500 DEG C, and keep 4 hours, then cool to room temperature with the furnace and come out of the stove.
Described containing chromium tungsten alloy cast iron, its composition also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage.
Embodiment 1
Containing chromium tungsten alloy cast iron, its composition is by weight percentage, the chromium of 8%, the tungsten of 1.0%, 3.5% carbon, 0.3% magnesium, 0.01% scandium, 0.2% copper, 0.03% zirconium, 0.1% tin, 1.2% manganese, 0.5% boron, the silicon of 1.8%, the cerium of 0.08% and lanthanum rare earth, the vanadium of 0.1% and the aluminium of 0.3%, surplus is iron and inevitable impurity.
Embodiment 2
Containing chromium tungsten alloy cast iron, its composition is by weight percentage, the chromium of 5%, the tungsten of 0.5%, 2.5% carbon, 0.5% magnesium, 0.03% scandium, 0.3% copper, 0.05% zirconium, 0.5% tin, 0.5% manganese, 0.3% boron, the silicon of 1.5%, the cerium of 0.05% and lanthanum rare earth, surplus is iron and inevitable impurity.
Embodiment 3
Containing chromium tungsten alloy cast iron, its composition is by weight percentage, the chromium of 6.5%, the tungsten of 0.8%, 3.0% carbon, 0.44% magnesium, 0.018% scandium, 0.23% copper, 0.037% zirconium, 0.22% tin, 1.0% manganese, 0.35% boron, the silicon of 1.6%, the cerium of 0.06% and lanthanum rare earth, the vanadium of 0.085% and the aluminium of 0.15%, surplus is iron and inevitable impurity.
Claims (4)
1. a Cast iron alloy with high wear resistance roller circle, is characterized in that: include internal layer and the outer composite structure formed; Described inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the zirconium of the scandium of the carbon of the chromium of 5-8%, the tungsten of 0.5-1.0%, 2.5-3.5%, the magnesium of 0.3-0.5%, 0.01-0.03%, the copper of 0.2-0.3%, 0.03-0.05%, the tin of 0.1-0.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity.
2. Cast iron alloy with high wear resistance roller circle according to claim 1, is characterized in that: containing chromium tungsten alloy cast iron, and its composition also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage.
3. a Cast iron alloy with high wear resistance roller circle manufacturing method, is characterized in that:
Determine and design the structure of 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 structure formed; Inner layer material is high-strength common spheroidal graphite cast iron; Cladding material is for containing chromium tungsten alloy cast iron; Described containing chromium tungsten alloy cast iron, its composition is by weight percentage, the manganese of the zirconium of the scandium of the carbon of the chromium of 5-8%, the tungsten of 0.5-1.0%, 2.5-3.5%, the magnesium of 0.3-0.5%, 0.01-0.03%, the copper of 0.2-0.3%, 0.03-0.05%, the tin of 0.1-0.5%, 0.5-1.2%, the boron of 0.3-0.5%, the silicon of 1.5-1.8%, the cerium of 0.05-0.08% and lanthanum rare earth, surplus is iron and inevitable impurity;
Carry out composite centrifugal casting: with medium-frequency induction furnace or arc melting above-mentioned containing chromium tungsten alloy cast iron and spheroidal graphite cast iron; Adopt centrifugal casting technique, opening mould temperature when watering is 220 ~ 280 DEG C, opens that to water temperature be the casting of 1350 ~ 1450 DEG C of constant temperature containing chromium tungsten alloy cast iron, pours into and adds covering slag, then water full containing chromium tungsten alloy cast iron containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature at the uniform velocity cools, and speed of cooling is no more than 8 DEG C/sec; Spheroidal graphite cast iron is poured into after its surface temperature is cooled to 850 ~ 1000 DEG C; It is 1300 ~ 1400 DEG C that the opening of spheroidal graphite cast iron waters temperature; Shut down after spheroidal graphite cast iron solidifies completely;
Heat-treat: by the above-mentioned obtained composite roll circle demoulding, at the uniform velocity air-cooled to air-cooled to 350 ~ 450 DEG C after being incubated 0.5-1 hour after 550 DEG C-600 DEG C with 3-5 DEG C/sec subsequently, carry out hardening liquid constant temperature quench treatment, then the tempering stove being preheating to 350 ~ 450 DEG C is put into, be warming up to 380 ~ 500 DEG C, and keep 4 hours, then cool to room temperature with the furnace and come out of the stove.
4. Cast iron alloy with high wear resistance roller circle manufacturing method according to claim 3, is characterized in that: described containing chromium tungsten alloy cast iron, its composition also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112570688A (en) * | 2020-11-11 | 2021-03-30 | 中北大学 | Solid-liquid forming steel-copper bimetallic material heat treatment method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000144302A (en) * | 1998-11-12 | 2000-05-26 | Kawasaki Steel Corp | Centrifugally cast composite roll excellent in seizuring resistance |
CN103736548A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance |
CN104024449A (en) * | 2011-08-17 | 2014-09-03 | 马勒发动机零部件巴西有限公司 | Cylinder liner and cast iron alloy |
CN104525911A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | Manufacturing method of cast iron alloy roller ring with high abrasion resistance |
CN104532111A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | High wear resistance cast iron alloy roller ring |
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- 2014-12-08 CN CN201410745802.5A patent/CN104532110A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000144302A (en) * | 1998-11-12 | 2000-05-26 | Kawasaki Steel Corp | Centrifugally cast composite roll excellent in seizuring resistance |
CN104024449A (en) * | 2011-08-17 | 2014-09-03 | 马勒发动机零部件巴西有限公司 | Cylinder liner and cast iron alloy |
CN103736548A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance |
CN104525911A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | Manufacturing method of cast iron alloy roller ring with high abrasion resistance |
CN104532111A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | High wear resistance cast iron alloy roller ring |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112570688A (en) * | 2020-11-11 | 2021-03-30 | 中北大学 | Solid-liquid forming steel-copper bimetallic material heat treatment method |
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Application publication date: 20150422 |