CN103741010A - Method for manufacturing cast iron alloy roller ring with high wear resistance - Google Patents
Method for manufacturing cast iron alloy roller ring with high wear resistance Download PDFInfo
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- CN103741010A CN103741010A CN201310755196.0A CN201310755196A CN103741010A CN 103741010 A CN103741010 A CN 103741010A CN 201310755196 A CN201310755196 A CN 201310755196A CN 103741010 A CN103741010 A CN 103741010A
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Abstract
The invention relates to a method for manufacturing a cast iron alloy roller ring with high wear resistance. The cast iron alloy roller ring comprises a composite structure formed by an inner layer and an outer layer, wherein the inner layer is made from high-strength ordinary nodular cast iron; the outer layer is made from chromium-tungsten alloy cast iron. According to the method, the cast iron alloy roller ring with high wear resistance is manufactured through composite centrifugal casting and heat treatment. Cast iron alloy is produced by the technical scheme of the invention, so that the problem of contradiction between high wear resistance and high robustness can be solved, and the quality of products using the alloy is improved.
Description
Technical field
The invention belongs to cast iron alloy field, specifically refer to a kind ofly there is high-wearing feature, low internal stress, high tenacity, and there is the cast iron alloy roller circle manufacturing method in higher work-ing life.
Background technology
For the roller circle on the mechanical means double-roll type pulverizer of the hard solid piece material fragmentations such as coal gangue and small stone stone or pulverizing, it is a vitals, the material of this roller circle be have necessarily required, require it to there is 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, there is more material optional, also can be indicated in Patent document data.
But in actual use, above-mentioned materials also cannot reach perfect condition on wear resisting property, and some material can be realized wear resisting property, but in material, include a large amount of precious metals or rare metal, 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 high-wearing feature cast iron alloy roller circle manufacturing method:
Determine and the design 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 forming; 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 chromium of 5-8%, the tungsten of 0.5-1.0%, the carbon of 2.5-3.5%, the boron of the manganese of 0.5-1.2%, 0.3-0.5%, the cerium of the silicon of 1.5-1.8%, 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 while watering is 220～280 ℃, and containing opening of chromium tungsten alloy cast iron, watering temperature is 1350～1450 ℃ of constant temperature casting, containing chromium tungsten alloy cast iron, pours into and adds covering slag, has then watered all containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature is at the uniform velocity cooling, and speed of cooling is no more than 8 ℃/sec; After being cooled to 850～1000 ℃, its surface temperature pours into spheroidal graphite cast iron; It is 1300～1400 ℃ that the opening of spheroidal graphite cast iron watered temperature; After solidifying completely, spheroidal graphite cast iron shuts down;
Heat-treat: by the above-mentioned composite roll circle demoulding making, at the uniform velocity air-cooled to air-cooled to 350～450 ℃ after being incubated 0.5-1 hour after 550 ℃-600 ℃ with 3-5 ℃/sec subsequently, carry out hardening liquid constant temperature quench treatment, then put into the tempering stove that is preheating to 350～450 ℃, be warming up to 380～500 ℃, 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-strong toughness, has improved the quality product of applying this alloy.
Embodiment
A high-wearing feature cast iron alloy roller circle, includes internal layer and the outer composite structure forming; 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 chromium of 5-8%, the tungsten of 0.5-1.0%, the carbon of 2.5-3.5%, the boron of the manganese of 0.5-1.2%, 0.3-0.5%, the cerium of the silicon of 1.5-1.8%, 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 high-wearing feature cast iron alloy roller circle is:
Determine and the design 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 forming; 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 chromium of 5-8%, the tungsten of 0.5-1.0%, the carbon of 2.5-3.5%, the boron of the manganese of 0.5-1.2%, 0.3-0.5%, the cerium of the silicon of 1.5-1.8%, 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 while watering is 220～280 ℃, and containing opening of chromium tungsten alloy cast iron, watering temperature is 1350～1450 ℃ of constant temperature casting, containing chromium tungsten alloy cast iron, pours into and adds covering slag, has then watered all containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature is at the uniform velocity cooling, and speed of cooling is no more than 8 ℃/sec; After being cooled to 850～1000 ℃, its surface temperature pours into spheroidal graphite cast iron; It is 1300～1400 ℃ that the opening of spheroidal graphite cast iron watered temperature; After solidifying completely, spheroidal graphite cast iron shuts down;
Heat-treat: by the above-mentioned composite roll circle demoulding making, at the uniform velocity air-cooled to air-cooled to 350～450 ℃ after being incubated 0.5-1 hour after 550 ℃-600 ℃ with 3-5 ℃/sec subsequently, carry out hardening liquid constant temperature quench treatment, then put into the tempering stove that is preheating to 350～450 ℃, be warming up to 380～500 ℃, 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, 8% chromium, 1.0% tungsten, 3.5% carbon, 1.2% manganese, 0.5% boron, 1.8% silicon, 0.08% cerium and lanthanum rare earth, 0.1% vanadium and 0.3% aluminium, surplus is iron and inevitable impurity.
Embodiment 2
Containing chromium tungsten alloy cast iron, its compositions is by weight percentage, 5% chromium, 0.5% tungsten, 2.5% carbon, 0.5% manganese, 0.3% boron, 1.5% silicon, 0.05% cerium and lanthanum rare earth, and surplus is iron and inevitable impurity.
Embodiment 3
Containing chromium tungsten alloy cast iron, its composition is by weight percentage, 6.5% chromium, 0.8% tungsten, 3.0% carbon, 1.0% manganese, 0.35% boron, 1.6% silicon, 0.06% cerium and lanthanum rare earth, 0.085% vanadium and 0.15% aluminium, surplus is iron and inevitable impurity.
Claims (2)
1. a high-wearing feature cast iron alloy roller circle manufacturing method, is characterized in that:
Determine and the design 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 forming; 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 chromium of 5-8%, the tungsten of 0.5-1.0%, the carbon of 2.5-3.5%, the boron of the manganese of 0.5-1.2%, 0.3-0.5%, the cerium of the silicon of 1.5-1.8%, 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 while watering is 220～280 ℃, and containing opening of chromium tungsten alloy cast iron, watering temperature is 1350～1450 ℃ of constant temperature casting, containing chromium tungsten alloy cast iron, pours into and adds covering slag, has then watered all containing chromium tungsten alloy cast iron; Be incubated after 15-30 minute, constant temperature is at the uniform velocity cooling, and speed of cooling is no more than 8 ℃/sec; After being cooled to 850～1000 ℃, its surface temperature pours into spheroidal graphite cast iron; It is 1300～1400 ℃ that the opening of spheroidal graphite cast iron watered temperature; After solidifying completely, spheroidal graphite cast iron shuts down;
Heat-treat: by the above-mentioned composite roll circle demoulding making, at the uniform velocity air-cooled to air-cooled to 350～450 ℃ after being incubated 0.5-1 hour after 550 ℃-600 ℃ with 3-5 ℃/sec subsequently, carry out hardening liquid constant temperature quench treatment, then put into the tempering stove that is preheating to 350～450 ℃, be warming up to 380～500 ℃, 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. high-wearing feature cast iron alloy roller circle manufacturing method according to claim 1, is characterized in that: it forms and also include by weight percentage the vanadium of 0.05-0.1% and the aluminium of 0.1-0.3% containing chromium tungsten alloy cast iron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310755196.0A CN103741010A (en) | 2013-12-27 | 2013-12-27 | Method for manufacturing cast iron alloy roller ring with high wear resistance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741013A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance and manufacturing method thereof |
| CN104498807A (en) * | 2014-12-08 | 2015-04-08 | 薛亚红 | Method for manufacturing high-wear-resistance 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 |
| CN111496227A (en) * | 2020-05-18 | 2020-08-07 | 邯郸慧桥复合材料科技有限公司 | Double-liquid composite casting method |
| CN111496229A (en) * | 2020-05-18 | 2020-08-07 | 邯郸慧桥复合材料科技有限公司 | Double-liquid composite casting protective agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861827A (en) * | 2006-05-28 | 2006-11-15 | 江苏共昌轧辊有限公司 | Half high speed steel composite roller and preparation process thereof |
| CN1943860A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Method for producing medium chromium tungsten-containing composite anti-wear roll ring |
| CN101406900A (en) * | 2008-11-28 | 2009-04-15 | 北京工业大学 | Centrifugal casting half steel/graphite steel composite roll collar and preparation method thereof |
-
2013
- 2013-12-27 CN CN201310755196.0A patent/CN103741010A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861827A (en) * | 2006-05-28 | 2006-11-15 | 江苏共昌轧辊有限公司 | Half high speed steel composite roller and preparation process thereof |
| CN1943860A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Method for producing medium chromium tungsten-containing composite anti-wear roll ring |
| CN101406900A (en) * | 2008-11-28 | 2009-04-15 | 北京工业大学 | Centrifugal casting half steel/graphite steel composite roll collar and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741013A (en) * | 2013-12-27 | 2014-04-23 | 黄忠波 | Cast iron alloy roller ring with high wear resistance and manufacturing method thereof |
| CN104498807A (en) * | 2014-12-08 | 2015-04-08 | 薛亚红 | Method for manufacturing high-wear-resistance 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 |
| CN111496227A (en) * | 2020-05-18 | 2020-08-07 | 邯郸慧桥复合材料科技有限公司 | Double-liquid composite casting method |
| CN111496229A (en) * | 2020-05-18 | 2020-08-07 | 邯郸慧桥复合材料科技有限公司 | Double-liquid composite casting protective agent |
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Application publication date: 20140423 |