CN1955446A - Processing method for filmatic bearing of supercharger - Google Patents
Processing method for filmatic bearing of supercharger Download PDFInfo
- Publication number
- CN1955446A CN1955446A CN 200610030869 CN200610030869A CN1955446A CN 1955446 A CN1955446 A CN 1955446A CN 200610030869 CN200610030869 CN 200610030869 CN 200610030869 A CN200610030869 A CN 200610030869A CN 1955446 A CN1955446 A CN 1955446A
- Authority
- CN
- China
- Prior art keywords
- bearing
- processing method
- supercharger
- nitriding
- carry out
- 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
Images
Landscapes
- Rolling Contact Bearings (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A technology for manufacturing the oil film lubricated bearing includes such steps as choosing raw material, blanking, forging, rough machining, heat treating for modifying, semi-fine machining, nitriding in gas nitriding furnace for increasing hardness, fine machining, and nitrating in salt bath.
Description
Technical field
The present invention relates to diesel pressure booster, the processing method of the radial bearing of diesel pressure booster and thrust-bearing particularly is also applicable to gas compressor and the radial bearing of gas turbine and the processing method of thrust-bearing of high speed rotating.
Background technique
Pressurized machine is to utilize the exhaust energy of diesel engine to promote turbine, and turbine has absorbed a kind of equipment that energy removes to drive gas compressor.It can make the air density that enters diesel engine improve, thereby increases the output power of diesel engine.
Gas compressor and turbine cartridge have two radial bearings to support on the same axis, and axle can be rotated under high rotating speed reposefully; Other has thrust-bearing (thrust disc and thrust bearing partner friction pair) to play the function of balancing axial thrust, and plays the axially locating effect of axle.
Thrust-bearing or the radial bearing material commonly used of forming one of filmatic bearing friction pair are white metal, Cuprum alloy, aluminum alloy, are called soft material; An another part thrust metal that matches with it or an axle material commonly used are structural steel or Alloy Constructional Steel and through heat treatment reinforcement, are called hard material.Just conventional pivot friction is secondary must soft material and hard material pairing.
Along with the axially and radially bearing load and the linear velocity of the very fast development of supercharging technology, bearing improves constantly, so require also more and more higher to its manufacturing, the selection, the processing technology that comprise the pairing of material require (comprising roughness, dimensional accuracy and form and position tolerance), make the requirement of the uncomfortable modern technologies of former processing technology.
Summary of the invention
Technical problem of the present invention is at above-mentioned requirements, and a kind of a kind of new machining method to oil film type thrust-bearing and radial bearing is provided.Bearing by manufacturing processing method pairing of the present invention can be that soft material is joined hard material, also can be that hard material is joined hard material.
Technological scheme of the present invention is, and is as follows at the machining manufacture of the oil film type thrust-bearing of above-mentioned hard material and radial bearing, do not relate to soft material, but also can substitute aforesaid soft material by the part of this technology manufacturing if necessary;
Raw material must be selected Alloy Constructional Steel for use, 35CrMoA for example, 42CrMoA, 37CrNi3A, 40CrNiMoA, 4Cr14Ni14W2Mo, 38CrMoAlA, through blanking, forge, the roughing after-baking is modified, make hardness in HRc23～28 scopes, carry out semi finishing again, stay a little grinding allowances slightly, enter gas nitriding furnace then and carry out gas nitriding, allow the GN 2 molecule infiltrate part surface, improve the surface hardness (Vickers hardness 650～750HV) of part, its objective is that the salt-bath nitriding for the back lays the first stone, increase wear resistance and corrosion resistance, the surface roughness of the one finishing requirements friction pair in back should be less than or equal to 0.1 μ m, after last procedure " salt-bath nitriding " is finished, press the every technical requirements of drawing regulation check, just can be used as finished product after qualified.
Beneficial functional of the present invention is:
1, remarkable corrosion resistance is arranged.
Through carrying out oxidation, polishing, the immersion oil process treating under 350～380 ℃ of temperature behind the salt-bath nitriding again one time, the metal surface can produce the erosion-resisting protective film of one deck, further improves anti-corrosion capacity.This soars to modern fuel price, the low day by day deterioration of the fuel oil that diesel engine uses, and under the mal-condition that the part by weight of the chemical substance of severe corrosive such as sulfur-bearing, vanadium in fuel oil improves constantly in the fuel oil, more apparent its superiority.
2, outstanding bearing pair bite-resistant performance and wear resistance.
There is trickle nitrided iron composition one deck compact structure, that layout is loose metal surface behind salt-bath nitriding, can produce the oil effect of holding on the surface of friction pair, in the process of starting and stopping operating, still can keep film lubrication, can not produce dry friction, help the break-in of bearing pair, more favourable to initial stage running-in effect.
3, filmatic bearing of supercharger of the present invention can be used for the gas compressor pressure ratio fully greater than on 4 the novel pressurized machine, to radially improving a lot in the reliability and the working life of these two pairs of friction pairs of bearing and thrust-bearing.Because bearing surface hardness improves greatly, and its surface abrasion resistance is improved greatly.
Description of drawings
Accompanying drawing is a process flow diagram of the present invention.
Embodiment
Now be that 38CrMoAl is that example is illustrated with raw material:
With the 38CrMoAl blanking, forge, carry out roughing, heat treatment quenching and tempering then, make hardness in HRc23～28 scopes, carry out semi finishing again, stay a little grinding allowances slightly, carry out the gas nitriding nitriding and handle, carry out fine finishing again, surface roughness should be less than or equal to 0.1 μ m, salt Bath Nitriding Treatment, temperature is controlled between 555 ℃ ± 5 ℃, makes nitrogen molecular infiltrate part surface, improves part surface hardness, its hardness can be stabilized between 950～1100HV, checks finished product at last.
Claims (1)
1, a kind of processing method of filmatic bearing of supercharger is characterized in that:
The selection blanking, modified through forger, roughing after-baking, make hardness in HRc23～28 scopes, carry out semi finishing again, enter gas nitriding furnace and carry out gas nitriding, the surface hardness that makes part is more than Vickers 650～750HV, fine finishing again, its roughness≤0.1 μ m, salt Bath Nitriding Treatment is checked finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610030869 CN1955446A (en) | 2006-09-06 | 2006-09-06 | Processing method for filmatic bearing of supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610030869 CN1955446A (en) | 2006-09-06 | 2006-09-06 | Processing method for filmatic bearing of supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1955446A true CN1955446A (en) | 2007-05-02 |
Family
ID=38062955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610030869 Pending CN1955446A (en) | 2006-09-06 | 2006-09-06 | Processing method for filmatic bearing of supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1955446A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543664A (en) * | 2015-12-28 | 2016-05-04 | 合肥中澜新材料科技有限公司 | Preparation method of abrasion-resistant roller of roller bearing |
| CN106002124A (en) * | 2015-12-28 | 2016-10-12 | 苏州斯莱克智能模具制造有限公司 | Machining method for inner crimping ring of zip-top cover crimping mold |
| CN107254658A (en) * | 2013-02-13 | 2017-10-17 | Ntn株式会社 | Parts of bearings and rolling bearing |
| CN109202385A (en) * | 2018-11-05 | 2019-01-15 | 重庆江增船舶重工有限公司 | A kind of booster disc processing method |
| CN112260017A (en) * | 2020-09-30 | 2021-01-22 | 湖南领舞科技有限公司 | High-reliability connecting device and preparation process of shaft lever |
-
2006
- 2006-09-06 CN CN 200610030869 patent/CN1955446A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254658A (en) * | 2013-02-13 | 2017-10-17 | Ntn株式会社 | Parts of bearings and rolling bearing |
| US10344801B2 (en) | 2013-02-13 | 2019-07-09 | Ntn Corporation | Bearing part and rolling bearing |
| CN107254658B (en) * | 2013-02-13 | 2019-11-01 | Ntn株式会社 | Parts of bearings and rolling bearing |
| CN105543664A (en) * | 2015-12-28 | 2016-05-04 | 合肥中澜新材料科技有限公司 | Preparation method of abrasion-resistant roller of roller bearing |
| CN106002124A (en) * | 2015-12-28 | 2016-10-12 | 苏州斯莱克智能模具制造有限公司 | Machining method for inner crimping ring of zip-top cover crimping mold |
| CN109202385A (en) * | 2018-11-05 | 2019-01-15 | 重庆江增船舶重工有限公司 | A kind of booster disc processing method |
| CN109202385B (en) * | 2018-11-05 | 2021-03-12 | 重庆江增船舶重工有限公司 | Machining method for oil thrower disc of supercharger |
| CN112260017A (en) * | 2020-09-30 | 2021-01-22 | 湖南领舞科技有限公司 | High-reliability connecting device and preparation process of shaft lever |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5202978B2 (en) | Thrust roller bearing | |
| CN1955446A (en) | Processing method for filmatic bearing of supercharger | |
| JP2009180327A (en) | Thrust roller bearing | |
| EP2162561B1 (en) | Piston ring with a sulphonitriding treatment | |
| JP2003042145A (en) | Turbo-type supercharger for internal combustion engine | |
| JP5199728B2 (en) | Rotary compressor | |
| CN103753156A (en) | Machining method for annular gear in internal gear pump | |
| JP4781937B2 (en) | Thrust needle bearing | |
| JP2008174822A (en) | Thrust bearing | |
| JP2009150415A (en) | Thrust roller bearing | |
| CN106367690A (en) | Rolling piston for refrigeration compressor and manufacturing method of rolling piston | |
| JP2004011712A (en) | Rolling bearing, and belt type continuously variable transmission using it | |
| JPH11303874A (en) | Rolling member | |
| JP5058611B2 (en) | Thrust bearing | |
| JP2008196033A (en) | Thrust bearing | |
| EP1837418B1 (en) | Slide member having a high-hardness carbon coating | |
| JP2009150508A (en) | Thrust roller bearing | |
| JP2009150507A (en) | Thrust roller bearing | |
| JP2008082379A (en) | Method for manufacturing thrust bearing component part | |
| JP2009168066A (en) | Thrust roller bearing | |
| JPS63201388A (en) | Vane type compressor | |
| CN205934023U (en) | Pressure water pump belt pulley is revolved to metal plate system that is as good as sound | |
| JP7379955B2 (en) | Carbonitriding steel and carbonitriding parts | |
| Kalinichenko et al. | Some Specific Features of Bearing Unit Development Based on Sliding Friction Pairs for Precision Electro-Spindles | |
| CN102803792B (en) | For running the method for the stepless speed variator being combined with driving belt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |