CN104651708A - Cast iron alloy for piston ring - Google Patents
Cast iron alloy for piston ring Download PDFInfo
- Publication number
- CN104651708A CN104651708A CN201410278857.XA CN201410278857A CN104651708A CN 104651708 A CN104651708 A CN 104651708A CN 201410278857 A CN201410278857 A CN 201410278857A CN 104651708 A CN104651708 A CN 104651708A
- Authority
- CN
- China
- Prior art keywords
- piston ring
- cast iron
- iron alloy
- alloy
- cast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229910001141 Ductile iron Inorganic materials 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a cast iron alloy for a piston ring, relating to the technical field of seal manufacturing. The cast iron alloy comprises the following chemical components by mass percent: 3.2-3.5% of C, 2.3-2.6% of Si, 0.7-0.9% of Mn, 0.2-0.4% of Cr, 0.2-0.6% of Mo, 0.5-1.0% of Cu, 0.05-0.15% of Ti, 0.1-0.30% of P, not more than 0.05% of S, 0.6-1% of Cu, 0.009-0.02% of Mg and the balance of Fe and inevitable impurities. Compared with the prior art, the cast iron alloy has the advantage that the problems of poor wear resistance and high production cost of existing cast iron piston rings can be solved.
Description
Technical field
The present invention relates to sealing member manufacturing technology field, especially a kind of for there being the cast iron alloy of oil lubrication gas compressor piston ring.
Background technology
A kind of broad-spectrum motive power machine equipment of compressor, to play sealing cylinder, auxiliary piston reciprocating in cylinder having in oil lubrication engine for piston ring, piston ring in the course of the work, high temperature, high pressure should be born, bear violent wearing and tearing and larger impact load effect again, especially first, second road ring, need to bear very large shock load, working conditions is quite severe, and therefore piston ring must have good wear resistance, higher intensity and enough toughness.But it is even cracked that thin this of the thickness due to piston ring makes the cast-iron piston ring of traditional gray cast iron material manufacture in use easily fracture; The piston ring material of current industry is except use graphitic cast iron is produced, also have and adopt ductile cast iron material to produce, due to wearing no resistance of spheroidal graphite cast iron, in order to improve the mechanical property of ductile iron piston ring, generally also need to carry out chromium plating process after the piston ring machining that ductile cast iron material is produced completes, and the complex procedures of chrome-plated process, and scrap rate is high, which adds the production cost of ductile iron piston ring.
Summary of the invention
Problem solved by the invention is to provide a kind of piston ring cast iron alloy, to solve the problem that existing cast-iron piston ring wears no resistance and production cost is high.
In order to solve the problem, the technical solution used in the present invention is: this piston ring cast iron alloy, and the chemical composition of its piston ring cast iron alloy and mass percentage are: C:3.2% ~ 3.5%, Si:2.3% ~ 2.6%, Mn:0.7% ~ 0.9%, Cr:0.2% ~ 0.4%, Mo: 0.2% ~ 0.6%, Cu:0.5% ~ 1.0%, Ti:0.05% ~ 0.15%, P:0.1% ~ 0.30%, S≤0.05%, Cu:0.6% ~ 1%, Mg:0.009% ~ 0.02%, all the other are Fe and inevitable impurity.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect: 1, the present invention is by the control to piston ring chemical composition and weight percentage, chemical composition in adjustment piston ring, obtain a kind of special cast iron alloy, the tensile strength of the alloy iron casting cast out with this cast iron alloy, unit elongation, toughness and fatigue resistance are all higher than common cast alloy iron, also possess the damping of common cast alloy iron simultaneously, thermal conductivity and wear resisting property, particularly this Drawing abillity is far superior to other cast alloy iron, wear resistance and the toughness of the cast alloy iron piston ring adopting the present invention to obtain are better than ductile iron piston ring, meet the performance need of piston ring, 2, the present invention uses rational production technique, directly surfaces nitrided process is carried out after mechanical workout completes, require no chromium plating process, eradicate the problem that chromeplated product scrap rate is high, greatly reduce the consumption of the energy simultaneously, every sheet piston ring cast iron alloy decreases 30% than the production cost of ductile iron piston ring, improves production efficiency.
Embodiment
Below in conjunction with example, the invention will be further described:
Embodiment 1:
A kind of piston ring cast iron alloy, the chemical composition of its piston ring cast iron alloy and mass percentage are: C:3.2%, Si:2.3%, Mn:0.7%, Cr:0.2%, Mo:0.2%, Cu:0.5%, Ti: 0.05%, P:0.1%, S≤0.05%, Cu:0.6%, Mg:0.009%, all the other are Fe and inevitable impurity.
Embodiment 2:
A kind of piston ring cast iron alloy, the chemical composition of its piston ring cast iron alloy and mass percentage are: C:3.3%, Si:2.5%, Mn:0.8%, Cr:0.3%, Mo:0.5%, Cu:0.8%, Ti: 0. 1%, P:0.2%, S≤0.05%, Cu:0.8%, Mg:0.013%, all the other are Fe and inevitable impurity.
Embodiment 3:
A kind of piston ring cast iron alloy, the chemical composition of its piston ring cast iron alloy and mass percentage are: C:3.5%, Si:2.6%, Mn:0.9%, Cr:0.4%, Mo:0.6%, Cu:1.0%, Ti: 0.15%, P:0.30%, S≤0.05%, Cu:1%, Mg:0.02%, all the other are Fe and inevitable impurity.
Produce by the piston ring cast iron alloy component of embodiment 1, embodiment 2 and embodiment 3 the cast alloy iron piston ring obtained and all have good shock-resistance, thermal fatigue resistance and wear resistance, processing characteristics is excellent, and cost is low, and integrated yield is high.Young's modulus>=the 125000N/mm of the cast alloy iron piston ring that three embodiments finally obtain
2, bending strength>=1100N/mm
2, tensile strength>=700N/mm
2, thermostability>=92%, hardness is HRB100 ~ HRB 113.
Claims (1)
1. a piston ring cast iron alloy, is characterized in that the chemical composition of piston ring cast iron alloy and mass percentage are: C:3.2% ~ 3.5%, Si:2.3% ~ 2.6%, Mn:0.7% ~ 0.9%, Cr:0.2% ~ 0.4%, Mo:0.2% ~ 0.6%, Cu:0.5% ~ 1.0%, Ti: 0.05% ~ 0.15%, P:0.1% ~ 0.30%, S≤0.05%, Cu:0.6% ~ 1%, Mg:0.009% ~ 0.02%, all the other are Fe and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278857.XA CN104651708A (en) | 2014-06-21 | 2014-06-21 | Cast iron alloy for piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278857.XA CN104651708A (en) | 2014-06-21 | 2014-06-21 | Cast iron alloy for piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104651708A true CN104651708A (en) | 2015-05-27 |
Family
ID=53243344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410278857.XA Pending CN104651708A (en) | 2014-06-21 | 2014-06-21 | Cast iron alloy for piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104651708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077662A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high temperature resistant composite coating piston ring for combustion engines |
| CN106435350A (en) * | 2016-11-03 | 2017-02-22 | 广西大学 | A kind of phosphorus copper titanium wear-resistant cast iron and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05214481A (en) * | 1992-01-30 | 1993-08-24 | Kawasaki Steel Corp | Wear resistant phosphorus eutectic cast iron |
| CN1088997A (en) * | 1992-12-30 | 1994-07-06 | 华东工学院 | The thermal treatment process of low-alloy spheroidal graphite cast-iron and foundry goods thereof |
| CN1126248A (en) * | 1994-10-25 | 1996-07-10 | 曼·B及W柴油机公开股份有限公司 | Cylinder line of internal combustion engine |
| CN1176315A (en) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | Iron casting alloy for producing piston ring of internal-combustion engine |
| CN1876878A (en) * | 2005-06-10 | 2006-12-13 | 上海上大热欣科技发展有限公司 | CrMoCu alloy cast iron continuous casting section bar and manufacturing method thereof |
-
2014
- 2014-06-21 CN CN201410278857.XA patent/CN104651708A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05214481A (en) * | 1992-01-30 | 1993-08-24 | Kawasaki Steel Corp | Wear resistant phosphorus eutectic cast iron |
| CN1088997A (en) * | 1992-12-30 | 1994-07-06 | 华东工学院 | The thermal treatment process of low-alloy spheroidal graphite cast-iron and foundry goods thereof |
| CN1126248A (en) * | 1994-10-25 | 1996-07-10 | 曼·B及W柴油机公开股份有限公司 | Cylinder line of internal combustion engine |
| CN1176315A (en) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | Iron casting alloy for producing piston ring of internal-combustion engine |
| CN1876878A (en) * | 2005-06-10 | 2006-12-13 | 上海上大热欣科技发展有限公司 | CrMoCu alloy cast iron continuous casting section bar and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077662A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high temperature resistant composite coating piston ring for combustion engines |
| CN106435350A (en) * | 2016-11-03 | 2017-02-22 | 广西大学 | A kind of phosphorus copper titanium wear-resistant cast iron and preparation method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |