CN107541654A - A kind of gray cast iron with high-strength, high-anti-friction - Google Patents
A kind of gray cast iron with high-strength, high-anti-friction Download PDFInfo
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- CN107541654A CN107541654A CN201610479568.5A CN201610479568A CN107541654A CN 107541654 A CN107541654 A CN 107541654A CN 201610479568 A CN201610479568 A CN 201610479568A CN 107541654 A CN107541654 A CN 107541654A
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Abstract
A kind of gray cast iron with high-strength, high-anti-friction, belong to powder metallurgical technology, it is made up of the raw material of following mass percent, C 4.0~6.0%, Si 2.0~3.8%, Mn 2.0~2.3%, P 0.03~0.06%, S 0.03~0.08%, Cr 0.5~0.85%, Mo 0.40~1.2%, Cu 1.5~3.0%, Sn 1.1~1.3%, remaining is Fe.Instant component is novel, manufacturing process is rationally clear, with good casting character, compared with prior art, the anti-wear performance and anti-cracking performance of material are improved, is mainly used in friction material, when slab thickness is less than 100mm, the tensile strength of bulk material is more than 250MPa, and single casting sample (diameter is less than 25mm), tensile strength is more than 345MPa.Enterprise's production cost is reduced, expands casting application, there is good economic benefit.
Description
Technical field
The invention belongs to powder metallurgical technology, is related to a kind of gray cast iron, more particularly to a kind of gray cast iron with high-strength, high-anti-friction.
Background technology
The general name for the alloy that cast iron is mainly made up of iron, carbon and silicon.Cast iron can be divided into：Grey cast-iron, white cast-iron, malleable cast iron, nodular cast iron, vermicular cast iron and alloy cast iron.
Alloy cast iron is to add appropriate alloying element in plain cast iron（Such as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminium, boron, vanadium, tin）Obtain.Alloying element makes the matrix of cast iron change, so as to corresponding heat-resisting, wear-resisting, anti-corrosion, low temperature resistant or without characteristics such as magnetic.Wherein, the gray cast iron in alloy cast iron due to cost it is cheap, and the characteristics of with castability, machinability, be most widely used a kind of cast iron in industry, be such as widely used in manufacture such as engine, the parts of household electrical appliances.The composition of existing gray cast iron is to carry out proportioning selection such as tensile strength, polishing machine, machining property etc. come mode that determining, generally use is traded off at present by the component capabilities requirement manufactured by it, therefore the compositing range of existing gray cast iron is comparatively wide.But when gray cast iron is used to make the part higher to wearability requirement, it is extremely difficult to the requirement of wearability.
Gray cast iron compression strength is higher, there is good absorbing, damping property and lubricity, has good thermal conductivity, machining type and castability, is widely used in electronic product.When thickness increase, the mechanical property of gray cast iron reduces, and causes load-carrying properties to decline.For large-scale steam generator, weight is big, when expanding with heat and contract with cold, can produce certain displacement, the bearing of bottom needs to use high intensity antifriction material.The Chinese patent of Application No. 201210126163.5 discloses a kind of molybdenum evanohm wear resistant cast iron, and alloy metallographic structure under as cast condition is based on the sheet pearlite of densification.The A type graphite of graphite in the form of sheets.With good anti-wear performance, machining property is good, is applicable and does automobile interior exterior plate first drawing die.Gray cast iron in this patent employs different content and the antifriction element of classification, such as S, Sn and Cu, so as to further increase the anti-wear performance of material and anti-cracking performance, is mainly used in friction material.
The content of the invention
The present invention is for the present invention in order to which castings of gray cast iron intensity, wearability can not meet that actual demand, easy to crack, use range such as are restricted at the technical problem, a kind of gray cast iron with high-strength, high-anti-friction is provided, under conditions of extra manufacturing procedure and processing cost is not increased, higher wearability is obtained, the use of high request occasion can be met.
The technical scheme is that：A kind of gray cast iron with high-strength, high-anti-friction, it is characterised in that：It is made up of the raw material of following mass percent, C 4.0~6.0%, Si 2.0~3.8%, Mn 2.0~2.3%, P 0.03~0.06%, S 0.03~0.08%, Cr 0.5~0.85%, Mo 0.40~1.2%, Cu 1.5~3.0%, Sn 1.1~1.3%, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is characterised in that preferably using following chemical composition：C 4.0%, Si 2.0%, Mn 2.0%, P 0.03%, S 0.03%, Cr 0.5%, Mo 0.4%, Cu 1.5%, Sn 1.1, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is characterised in that preferably using following chemical composition：C 6.0%, Si 3.8%, Mn 2.3%, P 0.06%, S 0.08%, Cr 0.85%, Mo 1.2%, Cu 3.0%, Sn 1.3%, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is characterised in that preferably using following chemical composition：C 5%, Si 3.0%, Mn 2.2%, P 0.04%, S 0.05%, Cr 0.65%, Mo 0.8%, Cu 2.4%, Sn 1.2%, remaining is Fe.
Beneficial effects of the present invention are：A kind of gray cast iron with high-strength, high-anti-friction proposed by the present invention, component is novel, and manufacturing process is rationally clear, and fusion process control is easy；The present invention reasonably adjusts and increased inoculation by being carried out to the raw material ratio of gray cast iron so that strength of gray cast iron and hardness are obviously improved.Gray cast iron smelting is more convenient, has good casting character, after inoculation, ironcasting is not easy to crack；Compared with prior art, gray cast iron in the application employs different content and the antifriction element of classification, such as S, Sn and Cu, improve the anti-wear performance and anti-cracking performance of material, it is mainly used in friction material, when slab thickness is less than 100mm, the tensile strength of bulk material is more than 250MPa, single casting sample (diameter is less than 25mm), tensile strength is more than 345MPa.Enterprise's production cost is reduced simultaneously, product qualification rate is improved, expands casting application, there is good economic benefit.
Embodiment
The invention will be further described below：
A kind of gray cast iron with high-strength, high-anti-friction, it is made up of the raw material of following mass percent, C 4.0~6.0%, Si 2.0~3.8%, Mn 2.0~2.3%, P 0.03~0.06%, S 0.03~0.08%, Cr 0.5~0.85%, Mo 0.40~1.2%, Cu 1.5~3.0%, Sn 1.1~1.3%, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is preferred to use following chemical composition：C 4.0%, Si 2.0%, Mn 2.0%, P 0.03%, S 0.03%, Cr 0.5%, Mo 0.4%, Cu 1.5%, Sn 1.1, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is preferred to use following chemical composition：C 6.0%, Si 3.8%, Mn 2.3%, P 0.06%, S 0.08%, Cr 0.85%, Mo 1.2%, Cu 3.0%, Sn 1.3%, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction, it is preferred to use following chemical composition：C 5%, Si 3.0%, Mn 2.2%, P 0.04%, S 0.05%, Cr 0.65%, Mo 0.8%, Cu 2.4%, Sn 1.2%, remaining is Fe.
A kind of gray cast iron with high-strength, high-anti-friction proposed by the present invention, component is novel, and manufacturing process is rationally clear, and fusion process control is easy；The present invention reasonably adjusts and increased inoculation by being carried out to the raw material ratio of gray cast iron so that strength of gray cast iron and hardness are obviously improved.Gray cast iron smelting is more convenient, has good casting character, after inoculation, ironcasting is not easy to crack；Compared with prior art, gray cast iron in the application employs different content and the antifriction element of classification, such as S, Sn and Cu, improve the anti-wear performance and anti-cracking performance of material, it is mainly used in friction material, when slab thickness is less than 100mm, the tensile strength of bulk material is more than 250MPa, single casting sample (diameter is less than 25mm), tensile strength is more than 345MPa.Enterprise's production cost is reduced simultaneously, product qualification rate is improved, expands casting application, there is good economic benefit.
Claims (4)
- A kind of 1. gray cast iron with high-strength, high-anti-friction, it is characterised in that：It is made up of the raw material of following mass percent, C 4.0~6.0%, Si 2.0~3.8%, Mn 2.0~2.3%, P 0.03~0.06%, S 0.03~0.08%, Cr 0.5~0.85%, Mo 0.40~1.2%, Cu 1.5~3.0%, Sn 1.1~1.3%, remaining is Fe.
- 2. a kind of gray cast iron with high-strength, high-anti-friction according to claim 1, it is characterised in that preferably using following chemical composition：C 4.0%th, Si 2.0%, Mn 2.0%, P 0.03%, S 0.03%, Cr 0.5%, Mo 0.4%, Cu 1.5%, Sn 1.1, remaining is Fe.
- 3. a kind of gray cast iron with high-strength, high-anti-friction according to claim 1, it is characterised in that preferably using following chemical composition：C 6.0%th, Si 3.8%, Mn 2.3%, P 0.06%, S 0.08%, Cr 0.85%, Mo 1.2%, Cu 3.0%, Sn 1.3%, remaining is Fe.
- 4. a kind of gray cast iron with high-strength, high-anti-friction according to claim 1, it is characterised in that preferably using following chemical composition：C 5%th, Si 3.0%, Mn 2.2%, P 0.04%, S 0.05%, Cr 0.65%, Mo 0.8%, Cu 2.4%, Sn 1.2%, remaining is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479568.5A CN107541654A (en) | 2016-06-28 | 2016-06-28 | A kind of gray cast iron with high-strength, high-anti-friction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610479568.5A CN107541654A (en) | 2016-06-28 | 2016-06-28 | A kind of gray cast iron with high-strength, high-anti-friction |
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| CN107541654A true CN107541654A (en) | 2018-01-05 |
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| CN201610479568.5A Pending CN107541654A (en) | 2016-06-28 | 2016-06-28 | A kind of gray cast iron with high-strength, high-anti-friction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923562A (en) * | 2019-12-26 | 2020-03-27 | 西安合力汽车配件有限公司 | Ball-milled cast iron product and preparation method thereof |
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2016
- 2016-06-28 CN CN201610479568.5A patent/CN107541654A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923562A (en) * | 2019-12-26 | 2020-03-27 | 西安合力汽车配件有限公司 | Ball-milled cast iron product and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |
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| WD01 | Invention patent application deemed withdrawn after publication |