CN101063188A - Non-magnetic or weak magnetic irony material for compressor counterbalancing mass - Google Patents
Non-magnetic or weak magnetic irony material for compressor counterbalancing mass Download PDFInfo
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- CN101063188A CN101063188A CN 200610026298 CN200610026298A CN101063188A CN 101063188 A CN101063188 A CN 101063188A CN 200610026298 CN200610026298 CN 200610026298 CN 200610026298 A CN200610026298 A CN 200610026298A CN 101063188 A CN101063188 A CN 101063188A
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- compressor
- magnetic
- weak
- nonmagnetic
- counterbalance weight
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Abstract
The invention discloses a non-magnetic or weak magnetic iron material of compressor counterbalance, which is characterized by the following: allocating less than 5% C, less than 4% Si, 3-15% Mn, 5-25% Ni, other less than 5% and surplus as Fe; incorporating Ni to enlarge austenitic area; modifying temperature stability; setting matrix of material as austenite; displaying non-magnet or weak magnet of the whole material; setting relative permeability at 0. 99-50 at -30-220 deg. c; non-generating phase transformation in using course. This invention does not possess imperfect impact for reliability of compressor and can decrease cost of counterbalance by 30%.
Description
Technical field
The present invention relates to be used for the material of compressor, be specifically related to the material of the counterbalance weight on the excentric shaft in air-conditioning, the freezer compressor.
Background technology
Because the imbalance of excentric shaft quality, compressor can cause the vibration of compressor in rotary course.Be balance excentric shaft quality, need add counterbalance weight 2 and last counterbalance weight 3 up and down in its appropriate location, referring to Fig. 1.And because the restriction of compressor spatial generally needs to adopt the bigger copper counterbalance weight of density.But the price of copper counterbalance weight is higher, and the cost of compressor is improved.
Summary of the invention
The object of the present invention is to provide a kind of the nonmagnetic of compressor balance piece or weak magnetism material of being used for, on the basis that does not influence compressor reliability, substitute copper counterbalance weight, to reduce the compressor cost.
The present invention is design like this.The first-selected density of material that substitutes copper counterbalance weight is relatively large, the relatively low cast iron of price and steel, but contains a large amount of ferrites in plain cast iron or the structure of steel or/and martensite, and ferrite or martensite all are magnetic.If to contain a large amount of ferrites or/and martensitic plain cast iron or steel as counterbalance weight, during compressor operation, counterbalance weight, especially descend counterbalance weight 2, when being subjected to electromagnetic field effect, can produce eddy-current loss, cause Motor torque to descend, influence compressor efficiency.If the compressor machine is big more, institute's balancing piece is also high more, and this influence is just big more.Have to take the second best, if select stainless steel for use, because nonmagnetic stainless steel costs an arm and a leg, processing difficulties, the effect that also can't reach guaranteed performance, reduces cost.And austenite is non-magnetic, thus the present invention to adopt matrix at normal temperatures at last be the iron of austenitic nonmagnetic or weak magnetic, substitute the higher copper of price and make counterbalance weight, do not influence the purpose that compressor performance is saved cost again to reach as far as possible.
A kind of the nonmagnetic of compressor balance piece or weak magnetism material of being used for of the present invention, it consists of by weight percentage: C＜5%, Si＜4%, Mn 3～15%, and Ni 5～25%, other＜5%, the Fe surplus.
In material of the present invention, contain a certain amount of Ni to enlarge the austenitic area, to improve its temperature stability.The matrix of material is an austenite, and material monolithic is nonmagnetic or weak magnetic, and relative magnetic permeability is 0.99～50 in the time of-30 ℃ to 220 ℃, and no phase transformation takes place in the use.
Effect of the present invention is: behind the original copper counterbalance weight of material substitution of the present invention, compressor reliability is not had tangible detrimentally affect, but the cost of counterbalance weight can reduce about 30%.
Description of drawings
Fig. 1 is the excentric shaft of compressor and the structural representation of counterbalance weight.
Among the figure: 1 eccentric part, 2 times off-centre, eccentric on 3.
Embodiment
The invention will be further described below in conjunction with embodiment.
| Sequence number | Constituent content (wt%) | |||||
| C | Si | Mn | Ni | Other | Fe | |
| Embodiment 1 | 3.5 | 2.5 | 14.4 | 23.7 | 4.3 | |
| Embodiment | ||||||
| 2 | 3.2 | 2.8 | 6.5 | 13.5 | 1 | |
| Embodiment | ||||||
| 3 | 0.15 | 0.05 | 10.3 | 19.4 | 4.5 | Surplus |
| Embodiment 4 | 3 | 2 | 6 | 12 | 4.9 | Surplus |
As motor A, the material making counterbalance weight of use embodiment 2 is compared motor list product efficient with use Hpb59-1 leaded brass counterbalance weight and is only descended 0.05%, and the compressor real machine confirms that Energy Efficiency Ratio descends 0.1%; Use the counterbalance weight of embodiment 3 materials, electrical efficiency, the compressor Energy Efficiency Ratio does not descend.
Adopt the counterbalance weight of above-mentioned materials manufacturing not need to heat-treat, austenite is stable, nonmagnetic or weak magnetic, and relative magnetic permeability is 0.99～50 in the time of-30 ℃ to 220 ℃.
Claims (3)
1. one kind is used for the nonmagnetic of compressor balance piece or weak magnetism material, and it consists of by weight percentage: C＜5%, and Si＜4%, Mn 3～15%, and Ni 5～25%, other＜5%, the Fe surplus.
2. a kind of the nonmagnetic of compressor balance piece or weak magnetism material of being used for according to claim 1, the matrix that it is characterized in that this material is an austenite, material monolithic is nonmagnetic or weak magnetic, and austenite is stable, and relative magnetic permeability is 0.99-50 in the time of-30 ℃-220 ℃.
3. a kind of the nonmagnetic of compressor balance piece or weak magnetism material of being used for according to claim 1 is characterized in that not needing when this material is applied to counterbalance weight to heat-treat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026298 CN101063188A (en) | 2006-04-30 | 2006-04-30 | Non-magnetic or weak magnetic irony material for compressor counterbalancing mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026298 CN101063188A (en) | 2006-04-30 | 2006-04-30 | Non-magnetic or weak magnetic irony material for compressor counterbalancing mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101063188A true CN101063188A (en) | 2007-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610026298 Pending CN101063188A (en) | 2006-04-30 | 2006-04-30 | Non-magnetic or weak magnetic irony material for compressor counterbalancing mass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101063188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528040A (en) * | 2012-02-24 | 2012-07-04 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN103509985A (en) * | 2013-06-09 | 2014-01-15 | 广东美芝制冷设备有限公司 | Alloy and preparation method and application thereof |
| CN104294179A (en) * | 2014-10-27 | 2015-01-21 | 舒思雄 | Counterbalance for compressor and manufacturing method of counterbalance |
-
2006
- 2006-04-30 CN CN 200610026298 patent/CN101063188A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528040A (en) * | 2012-02-24 | 2012-07-04 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN102528040B (en) * | 2012-02-24 | 2013-11-13 | 王兴民 | Process method for manufacturing balance weight for compressor by powder metallurgy |
| CN103509985A (en) * | 2013-06-09 | 2014-01-15 | 广东美芝制冷设备有限公司 | Alloy and preparation method and application thereof |
| CN103509985B (en) * | 2013-06-09 | 2016-03-16 | 广东美芝制冷设备有限公司 | Alloy And Preparation Method and application |
| CN104294179A (en) * | 2014-10-27 | 2015-01-21 | 舒思雄 | Counterbalance for compressor and manufacturing method of counterbalance |
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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 |
Open date: 20071031 |