CN105624546A - Low-alloy anti-wear cast iron - Google Patents
Low-alloy anti-wear cast iron Download PDFInfo
- Publication number
- CN105624546A CN105624546A CN201511016000.1A CN201511016000A CN105624546A CN 105624546 A CN105624546 A CN 105624546A CN 201511016000 A CN201511016000 A CN 201511016000A CN 105624546 A CN105624546 A CN 105624546A
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- Prior art keywords
- cast iron
- alloy
- low
- subtracts
- mill
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- 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
- C22C37/08—Cast-iron alloys containing chromium with nickel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses low-alloy anti-wear cast iron. The cast iron is composed of 3-3.4% of C, 1.6-2.6% of Si, 0.6-1% of Mn, P smaller than or equal to 0.15%, S smaller than 0.12%, 0.8-1.5% of Cr, 0.25-0.4% of Ni, 0.2-0.35% of Mo, 0.1-0.2% of Ti and the balance Fe. The wear resistance of the prepared low-alloy anti-wear cast iron is greatly improved and is 3-4 times that of common HT200 grey cast iron, and the wear resistance detection results hardly change after the low-alloy anti-wear cast iron is used for half a year on a precision machine tool body or a worktable. According to the cast iron, by combining chromium, nickel, molybdenum, titanium and raw material, the structure is refined, the carbide morphology is improved, the mechanical property of the cast iron is effectively improved, and therefore the cast iron is more suitable for being applied to precision machine tools.
Description
Technical field
The present invention relates to metal material field, it is specifically related to a kind of low-alloy and subtracts mill cast iron.
Background technology
The part being applied to lathe at present is grey cast iron mostly, grey cast iron is the cast iron that first stage graphitizing process fully carries out and obtain, whole or most of carbon exists with flake graphite form, fracture is dark-coloured in ash, hence obtain one's name, grey cast iron and to have cost low, lower-price characteristic, is therefore often applied to component.
Although grey cast iron has certain intensity, but there is plasticity and the lower problem of toughness in it, especially in precision machine tool in application process, wear and tear very serious, it is to increase cost, therefore, the present invention is from wear-resisting angle, it provides a kind of low-alloy subtracts mill cast iron.
Summary of the invention
There is the lower problem of wear resistance difference, plasticity and toughness in machine tool applications for solving grey cast iron, the present invention provides a kind of intensity height, good toughness, low-alloy that wear resistance is good subtract mill cast iron
The present invention is achieved by the following technical programs:
A kind of low-alloy subtracts mill cast iron, and this cast iron Chemical Composition is: C:3-3.4%, Si:1.6-2.6%, Mn:0.6-1%, P��0.15%, S < 0.12%, Cr:0.8-1.5%, Ni:0.25-0.4%, Mo:0.2-0.35%, Ti:0.1-0.2%, all the other be Fe.
It is 250-350Mpa that described low-alloy subtracts the tensile strength of mill cast iron, and bending strength is 480-620Mpa.
Described low-alloy subtracts the amount of deflection��3mm of mill cast iron, and impelling strength is 24-27j/cm2��
It is 220-270HBs that described low-alloy subtracts the Brinell hardness of mill cast iron.
It is 52-60HRc that described low-alloy subtracts the Rockwell hardness of mill cast iron.
Described low-alloy subtracts the preparation method of mill cast iron: raw material adding fusing formation alloy liquid, temperature of fusion in induction furnace and is controlled to 1450-1500 DEG C, control temperature is 1400-1450 DEG C, leaves standstill 5-6min; Cr-Ni-Mo-Ti alloy powder being put into the pit that promotion formula waters bag, then alloy liquid watered bag, be cast as ingot casting, teeming temperature is 1500-1550 DEG C, then after ingot casting is heated to 950-980 DEG C of maintenance 5-6h, air quenching tempering obtains low-alloy and subtracts mill cast iron.
The useful effect of the present invention is: prepared by the present invention the low-alloy gone out subtract mill cast iron wear resisting property had huge raising, its wear resistance is 3-4 times of common HT200 grey cast iron, and this low-alloy subtract mill cast iron being applied to precision machine tool lathe bed, worktable use the wear-resisting detected result after half a year for having almost no change, the present invention utilizes the combination of Cr, Ni, Mo, Ti and raw material, refinement tissue, improve carbide morphology, effectively improve its mechanical property so that it is be more adapted in precision machine tool and apply.
Embodiment
Below in conjunction with specific embodiment, the technical scheme of the present invention is further described, but described in claimed scope is not limited to.
Embodiment one
It is as follows that low-alloy subtracts mill cast iron Chemical Composition: C:3%, Si:1.6%, Mn:0.6%, P��0.15%, S < 0.12%, Cr:0.8%, Ni:0.25%, Mo:0.2%, Ti:0.1%, all the other are for Fe.
Preparation method: raw material adding fusing formation alloy liquid, temperature of fusion in induction furnace and is controlled to 1450 DEG C, control temperature is 1400 DEG C, leaves standstill 5min; Cr-Ni-Mo-Ti alloy powder being put into the pit that promotion formula waters bag, then alloy liquid watered bag, be cast as ingot casting, teeming temperature is 1500 DEG C, then after ingot casting is heated to 950 DEG C of maintenance 5h, air quenching tempering obtains low-alloy and subtracts mill cast iron.
Embodiment two
It is as follows that low-alloy subtracts mill cast iron Chemical Composition: C:3.4%, Si:2.6%, Mn:1%, P��0.15%, S < 0.12%, Cr:1.5%, Ni:0.4%, Mo:0.35%, Ti:0.2%, all the other are for Fe.
Preparation method: raw material adding fusing formation alloy liquid, temperature of fusion in induction furnace and is controlled to 1500 DEG C, control temperature is 1450 DEG C, leaves standstill 6min; Cr-Ni-Mo-Ti alloy powder being put into the pit that promotion formula waters bag, then alloy liquid watered bag, be cast as ingot casting, teeming temperature is 1550 DEG C, then after ingot casting is heated to 980 DEG C of maintenance 6h, air quenching tempering obtains low-alloy and subtracts mill cast iron.
Embodiment three
It is as follows that low-alloy subtracts mill cast iron Chemical Composition: C:3.2%, Si:2.2%, Mn:0.8%, P��0.15%, S < 0.12%, Cr:0.95%, Ni:0.32%, Mo:0.27%, Ti:0.15%, all the other are for Fe.
Preparation method: raw material adding fusing formation alloy liquid, temperature of fusion in induction furnace and is controlled to 1475 DEG C, control temperature is 1425 DEG C, leaves standstill 5.5min; Cr-Ni-Mo-Ti alloy powder being put into the pit that promotion formula waters bag, then alloy liquid watered bag, be cast as ingot casting, teeming temperature is 1525 DEG C, then after ingot casting is heated to 965 DEG C of maintenance 5.5h, air quenching tempering obtains low-alloy and subtracts mill cast iron.
Claims (6)
1. a low-alloy subtracts mill cast iron, it is characterised in that: this cast iron Chemical Composition is: C:3-3.4%, Si:1.6-2.6%, Mn:0.6-1%, P��0.15%, S < 0.12%, Cr:0.8-1.5%, Ni:0.25-0.4%, Mo:0.2-0.35%, Ti:0.1-0.2%, all the other be Fe.
2. low-alloy according to claim 1 subtracts mill cast iron, it is characterised in that: it is 250-350Mpa that described low-alloy subtracts the tensile strength of mill cast iron, and bending strength is 480-620Mpa.
3. low-alloy according to claim 1 subtracts mill cast iron, it is characterised in that: described low-alloy subtracts the amount of deflection��3mm of mill cast iron, and impelling strength is 24-27j/cm2��
4. low-alloy according to claim 1 subtracts mill cast iron, it is characterised in that: it is 220-270HBs that described low-alloy subtracts the Brinell hardness of mill cast iron.
5. low-alloy according to claim 1 subtracts mill cast iron, it is characterised in that: it is 52-60HRc that described low-alloy subtracts the Rockwell hardness of mill cast iron.
6. subtract mill cast iron according to low-alloy as claimed in claim 1, it is characterized in that: described low-alloy subtracts the preparation method of mill cast iron and is: raw material is added fusing formation alloy liquid, temperature of fusion in induction furnace and is controlled to 1450-1500 DEG C, control temperature is 1400-1450 DEG C, leaves standstill 5-6min; Cr-Ni-Mo-Ti alloy powder being put into the pit that promotion formula waters bag, then alloy liquid watered bag, be cast as ingot casting, teeming temperature is 1500-1550 DEG C, then after ingot casting is heated to 950-980 DEG C of maintenance 5-6h, air quenching tempering obtains low-alloy and subtracts mill cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016000.1A CN105624546A (en) | 2015-12-29 | 2015-12-29 | Low-alloy anti-wear cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016000.1A CN105624546A (en) | 2015-12-29 | 2015-12-29 | Low-alloy anti-wear cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105624546A true CN105624546A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511016000.1A Pending CN105624546A (en) | 2015-12-29 | 2015-12-29 | Low-alloy anti-wear cast iron |
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| CN (1) | CN105624546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702258A (en) * | 2016-12-20 | 2017-05-24 | 吴中区穹窿山福顺生物技术研究所 | High-temperature oxidation-resistant wear-resistant grey cast iron and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436773A (en) * | 2013-08-21 | 2013-12-11 | 北京工业大学 | Preparation method of wear-resistant high-chromium cast iron |
| CN104073710A (en) * | 2014-06-24 | 2014-10-01 | 丹寨县真山机电有限公司 | Antifriction cast iron for air conditioner compressors and preparation method thereof |
| CN104372236A (en) * | 2014-10-29 | 2015-02-25 | 芜湖瑞鹄铸造有限公司 | Iron-base mold material and mold preparation method |
-
2015
- 2015-12-29 CN CN201511016000.1A patent/CN105624546A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436773A (en) * | 2013-08-21 | 2013-12-11 | 北京工业大学 | Preparation method of wear-resistant high-chromium cast iron |
| CN104073710A (en) * | 2014-06-24 | 2014-10-01 | 丹寨县真山机电有限公司 | Antifriction cast iron for air conditioner compressors and preparation method thereof |
| CN104372236A (en) * | 2014-10-29 | 2015-02-25 | 芜湖瑞鹄铸造有限公司 | Iron-base mold material and mold preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 梁义田、刘真等: "《合金元素在铸铁中的应用》", 31 December 1992 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702258A (en) * | 2016-12-20 | 2017-05-24 | 吴中区穹窿山福顺生物技术研究所 | High-temperature oxidation-resistant wear-resistant grey cast iron and preparation method thereof |
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Application publication date: 20160601 |
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