CN108914012B - Turbocharger sleeve steel - Google Patents
Turbocharger sleeve steel Download PDFInfo
- Publication number
- CN108914012B CN108914012B CN201810604809.3A CN201810604809A CN108914012B CN 108914012 B CN108914012 B CN 108914012B CN 201810604809 A CN201810604809 A CN 201810604809A CN 108914012 B CN108914012 B CN 108914012B
- Authority
- CN
- China
- Prior art keywords
- steel
- hardness
- equal
- less
- turbocharger
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Abstract
The invention discloses a turbocharger sleeve steel which comprises, by mass, 0.4-0.8% of C, 3.5% of Si 2, 0.3-0.8% of S, less than or equal to 0.045% of P, 0.8-1.5% of M N0.8, 18-21% of Ni, 1.0-2.5% of Nb1, 23-26% of Cr, 26-4% of W2, 1.0-2.5% of Mo, 0.2-0.6% of V, 0.1-0.5% of N, less than or equal to 0.5% of CU, less than or equal to 1.0% of CO, and the balance of Fe. The invention has excellent high temperature of 1000 ℃ and low expansion coefficient, the hardness and the wear resistance of the material exceed those of the same kind, and the blank of the same kind of material in China is filled.
Description
Technical Field
The invention relates to the field of steel, in particular to turbocharger sleeve steel with high strength, high wear resistance and low deformation under a high-temperature working condition.
Background
The mechanical industry is the faucet of all industries in the world, and the foundry industry is the foundation of the mechanical industry. The annual casting of China is about 5000 million tons, and is the first casting kingdom in the world. However, the whole technical level of the domestic casting industry falls behind, the use of materials is completely specified by customers, and the independent research and development capability is lacked.
The automobile with the turbocharging system is accelerated in the driving process, the turbocharging system intervenes in work, the barrel sleeve is matched with the rocker arm, the driving valve is driven to open and close or close through the transmission mechanism, the valve system is opened and closed or closed ceaselessly, the rocker arm and the sleeve are rubbed ceaselessly and are easily abraded, the sleeve is required to have higher wear resistance, the sleeve is prevented from being in direct contact with the volute, the volute is abraded and scrapped, and the automobile maintenance cost is reduced. When the turbocharger valve transmission system works, the temperature is up to 800-1020 ℃, the matching tolerance of the sleeve and the rocker arm is only about 0.1mm, the materials expand under the high-temperature condition, if the expansion coefficient is too large, the rocker arm and the sleeve are extremely easy to clamp, and the sleeve is required to have an extremely small and stable expansion coefficient under the high-temperature condition.
The standard basically adopted by the matching material of the prior turbocharger valve system is German standard/Japanese standard/American standard and the like, the core product materials such as sleeve materials (P L26/ST 33-12 and the like) are registered and patented, and all related products need to be authorized when the materials are used, so that the product cost is improved and is limited by people.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the turbocharger sleeve steel for solving the problems, which has excellent high-temperature low-expansion coefficient and hardness and wear resistance superior to those of similar materials.
In order to achieve the purpose, the invention provides the following technical scheme:
the turbocharger sleeve steel material comprises, by mass, 0.4-0.8% of C, 3.5% of Si 2, 0.3-0.8% of S, less than or equal to 0.045% of P, 0.8-1.5% of M N0.8, 18-21% of Ni, 1.0-2.5% of Nbs, 23-26% of Cr, 2-4% of W, 1.0-2.5% of Mo, 0.2-0.6% of V, 0.1-0.5% of N, less than or equal to 0.5% of CU, less than or equal to 1.0% of CO, and the balance Fe.
The invention has the beneficial effects that:
the invention has raised the carbon content correspondingly, effectively increase the hardness of the product and its tensile strength, but C, Si, Cr, S content in the material is higher, cause the toughness to be insufficient, add 1% -2.5% Mo in this material, molybdenum can keep the steel to have more stable hardness, increase the resistance to deformation, cracking and wearing, etc., make the part can temper under higher temperature, thus dispel (or reduce) the residual stress more effectively, improve the plasticity, add 0.2-0.6% V in the material at the same time, refine the crystalline grain effectively, because Mn, S content in the balanced material is too high, form higher melting point MnS, cause the tendency and brittleness sensibility of the coarsening of the crystalline grain of steel, and Co alloy use improves the hardness and performance of the steel effectively, make it combine with Mo in the material, can obtain the ultra-high hardness and good comprehensive mechanical properties, the material of the invention and material of the same type (P L26/33-12), the hardness and tensile strength are lowered, the test of this invention has already got the test of high temperature and the nanometer under the test of the Beijing laboratory, the conclusion.
Detailed Description
The material number of the invention is CH-17, and the material design of the comparative example of similar steel materials (P L26, ST 33-12) is shown in Table 1, wherein CH-17 (1), CH-17 (2), CH-17 (3) are respectively embodiment 1, embodiment 2 and embodiment 3.
TABLE 1 Material design
The invention correspondingly improves the carbon content, effectively increases the hardness and the tensile strength of the product, but the content of C, Si, Cr and S in the material is higher, which can cause insufficient toughness, 1 to 2.5 percent of Mo is added in the material, the molybdenum can keep the steel to have more stable hardness, and increases the resistance to deformation, cracking, abrasion and the like, so that the part can be tempered at higher temperature, thereby more effectively eliminating (or reducing) residual stress and improving plasticity, meanwhile, 0.2 to 0.6 percent of V is added in the material, crystal grains are effectively refined, MnS with higher melting point is formed due to the higher content of Mn and S in the balanced material, thereby causing the coarsening tendency and the tempering brittleness sensitivity of the steel crystal grains, and the use of Co alloy effectively improves the hardness and the tensile property of the steel, so that the Co alloy is combined with Mo in the material, thereby being capable of obtaining ultrahigh hardness and good comprehensive mechanical property.
Table 2 hardness, tensile properties, high temperature expansion properties were measured as follows:
| material brand | Hardness standard | High temperature of 400 DEG C Coefficient of expansion [10-6mm (mmxk)] | High temperature swelling at 800 deg.C Coefficient of expansion [10- 6mm(mmxk)] | High temperature expansion at 1000 deg.C Coefficient of expansion [10- 6mm(mmxk)] | Grain size grade (according to ASTM) E112 Standard) |
| PL26 | 240-350/HV10 | 16 | 17 | 18 | 4-6 |
| ST33-12 | 240-350/HV10 | 16 | 17 | 18 | 4-6 |
| CH-17(1) | 370/HV10 | 16.00 | 17 | 17.23 | 4-6 |
| CH-17(2) | 365/HV10 | 15.60 | 16.85 | 17.50 | 4-6 |
| CH-17(3) | 358/HV10 | 15.88 | 17.16 | 17.09 | 4-6 |
Example 3, namely CH-17 (3), is documented in the report of analytical testing by Beijing Steel, Inc. of research and testing technology.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (1)
1. The turbocharger sleeve steel is characterized by comprising, by mass, 0.4% of C, 3.5% of Si, 0.3% of S, less than or equal to 0.045% of P, 0.8% of Mn0, 21% of Ni, 2.5% of Nb2, 23% of Cr, 2% of W, 1.0% of Mo, 0.6% of V, 0.1% of N, less than or equal to 0.5% of Cu, less than or equal to 1.0% of Co, and the balance of Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604809.3A CN108914012B (en) | 2018-06-13 | 2018-06-13 | Turbocharger sleeve steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604809.3A CN108914012B (en) | 2018-06-13 | 2018-06-13 | Turbocharger sleeve steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108914012A CN108914012A (en) | 2018-11-30 |
| CN108914012B true CN108914012B (en) | 2020-07-14 |
Family
ID=64420461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810604809.3A Active CN108914012B (en) | 2018-06-13 | 2018-06-13 | Turbocharger sleeve steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108914012B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030080A (en) * | 2020-08-28 | 2020-12-04 | 青岛新力通工业有限责任公司 | Resource-saving high-temperature high-strength heat-resistant alloy steel material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2542753B2 (en) * | 1990-08-02 | 1996-10-09 | 日立金属株式会社 | Austenitic heat-resistant cast steel exhaust system parts with excellent high-temperature strength |
| DE69403975T2 (en) * | 1993-02-03 | 1997-12-18 | Hitachi Metals Ltd | Heat-resistant austenitic cast steel and components of an exhaust system made from it |
| DE102012203569A1 (en) * | 2012-03-07 | 2013-09-12 | Mahle International Gmbh | Heat resistant bearing material |
-
2018
- 2018-06-13 CN CN201810604809.3A patent/CN108914012B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108914012A (en) | 2018-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107904492B (en) | Low-silicon high-carbon chromium bearing steel and hot rolling production method thereof | |
| CN108179350B (en) | Low-cost short-production-period preparation method of wear-resistant steel | |
| CN107937828B (en) | F6NM martensitic stainless steel cylinder forging and heat treatment method | |
| CN100359036C (en) | Cast steel for bearing parts in mechanical lifting system and its making process | |
| WO2014154104A1 (en) | Low alloy high toughness wear-resistant steel plate and manufacturing method thereof | |
| CN105018854B (en) | High-fire resistance hot die steel and preparation method | |
| KR101545417B1 (en) | Die steel having superior rusting resistance and thermal conductivity, and method for producing same | |
| CN109554618A (en) | Non-hardened and tempered steel and the method that automobile axle shaft is manufactured using non-hardened and tempered steel | |
| CN113862576B (en) | Non-quenched and tempered steel, crankshaft and production method thereof | |
| CN107916364B (en) | Hot work die steel | |
| CN102719752A (en) | Seamless steel pipe with excellent hydrogen sulfide stress corrosion resistance and manufacture method thereof | |
| CN108914012B (en) | Turbocharger sleeve steel | |
| CN109763077B (en) | High-hardness high-wear-resistance high-speed steel and preparation method thereof | |
| CN111961976B (en) | Steel, preparation method and application thereof | |
| CN110284075B (en) | Production process of movable iron core of electromagnetic valve | |
| KR20160010930A (en) | (High wear-resistant cold work tool steels with enhanced impact toughness | |
| CN101440454A (en) | Wear resistant cast iron | |
| CN111748750A (en) | High-toughness steel for cutter and preparation method thereof | |
| CN109182896B (en) | 175MPa movable elbow material and heat treatment process | |
| CN109536844B (en) | High-temperature-resistant die steel and preparation method thereof | |
| CN110318004B (en) | Production process of alloy material and static iron core for electromagnetic valve | |
| CN111676415A (en) | High-toughness pneumatic valve and processing technology thereof | |
| CN102634737A (en) | High-pressure-resisting and low-carbon alloy steel material | |
| EP4230759A1 (en) | Hot work tool steel and hot work tool | |
| CN105506453A (en) | Novel low-cost S355JR/J0 low alloy steel plate and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |