CN104525911A - Manufacturing method of cast iron alloy roller ring with high abrasion resistance - Google Patents
Manufacturing method of cast iron alloy roller ring with high abrasion resistance Download PDFInfo
- Publication number
- CN104525911A CN104525911A CN201410745803.XA CN201410745803A CN104525911A CN 104525911 A CN104525911 A CN 104525911A CN 201410745803 A CN201410745803 A CN 201410745803A CN 104525911 A CN104525911 A CN 104525911A
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- China
- Prior art keywords
- cast iron
- iron
- containing chromium
- tungsten alloy
- alloy cast
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- 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
-
- 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 relates to a manufacturing method of a cast iron alloy roller ring with high abrasion resistance. The cast iron alloy roller ring comprises a composite structure which is composed of an inner layer and an outer layer, wherein high-strength ordinary nodular cast iron serves as an inner layer material, chromium and tungsten alloy cast iron serves as an outer layer material, and the cast iron alloy roller ring with high abrasion resistance is obtained through composite centrifugal casting and heat treatment. According to the technical scheme, cast iron alloy produced through the manufacturing method can solve the problem of contradiction between high abrasion resistance and high toughness, and quality of a product using the cast iron alloy is 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 the cast-iron alloy roller circle manufacturing method in higher service life.
Background technology
Roller circle on or the plant equipment double-roll type pulverizer pulverized broken for the hard solid block material such as 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 service life.For the outer field problem of materials of antiwear composite pair roller circle, have more material optional, also show in Patent document data.
But in actual use, above-mentioned material also cannot reach perfect condition on anti-wear performance, and some material can realize anti-wear performance, but includes a large amount of noble 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 service 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 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 construction 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 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;
Carry out composite centrifugal casting: with intermediate frequency 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 cooling velocity 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 quenching liquid constant temperature Quenching Treatment, then the tempering furnace 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.
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-strength tenacity, improves the product quality of this alloy of application.
Detailed description of the invention
A kind of Cast iron alloy with high wear resistance roller circle, includes internal layer and the outer composite construction 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.
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 construction 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 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;
Carry out composite centrifugal casting: with intermediate frequency 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 cooling velocity 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 quenching liquid constant temperature Quenching Treatment, then the tempering furnace 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%, 0.3% magnesium, 0.01% scandium, 0.2% copper, 0.03% zirconium, 0.1% tin, 3.5% carbon, 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%, 0.5% magnesium, 0.03% scandium, 0.3% copper, 0.05% zirconium, 0.5% tin, 2.5% carbon, 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, 0.38% magnesium, 0.012% scandium, 0.25% copper, 0.04% zirconium, 0.4% 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 (2)
1. 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 construction 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 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;
Carry out composite centrifugal casting: with intermediate frequency 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 cooling velocity 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 quenching liquid constant temperature Quenching Treatment, then the tempering furnace 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.
2. Cast iron alloy with high wear resistance roller circle manufacturing method according to claim 1, is characterized in that: it also includes the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% by weight percentage containing chromium tungsten alloy cast iron composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410745803.XA CN104525911A (en) | 2014-12-08 | 2014-12-08 | Manufacturing method of cast iron alloy roller ring with high abrasion resistance |
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| CN201410745803.XA CN104525911A (en) | 2014-12-08 | 2014-12-08 | Manufacturing method of cast iron alloy roller ring with high abrasion resistance |
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| CN104525911A true CN104525911A (en) | 2015-04-22 |
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| CN201410745803.XA Pending CN104525911A (en) | 2014-12-08 | 2014-12-08 | Manufacturing method of cast iron alloy roller ring with high abrasion resistance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532110A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | High wear resistance cast iron alloy roller ring and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5768262A (en) * | 1980-10-13 | 1982-04-26 | Mitsubishi Heavy Ind Ltd | As-cast high chromium type cast iron double centrifugal cast roll |
| JPS57146465A (en) * | 1981-03-03 | 1982-09-09 | Kubota Ltd | Production of composite casting |
| 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 |
| 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 |
-
2014
- 2014-12-08 CN CN201410745803.XA patent/CN104525911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5768262A (en) * | 1980-10-13 | 1982-04-26 | Mitsubishi Heavy Ind Ltd | As-cast high chromium type cast iron double centrifugal cast roll |
| JPS57146465A (en) * | 1981-03-03 | 1982-09-09 | Kubota Ltd | Production of composite casting |
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532110A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | High wear resistance cast iron alloy roller ring and manufacturing method thereof |
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Application publication date: 20150422 |