CN101645628A - Motor rotor balancing block of compressor - Google Patents
Motor rotor balancing block of compressor Download PDFInfo
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- CN101645628A CN101645628A CN200810041361A CN200810041361A CN101645628A CN 101645628 A CN101645628 A CN 101645628A CN 200810041361 A CN200810041361 A CN 200810041361A CN 200810041361 A CN200810041361 A CN 200810041361A CN 101645628 A CN101645628 A CN 101645628A
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- motor rotor
- compressor
- balance weight
- balancing block
- rotor balancing
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Abstract
The invention relates to a motor rotor balancing block of a compressor, which is characterized in that the motor rotor balancing block is made of a non-magnetic material, and the non-magnetic materialis austenitic steel of which nitrogen content is over 0.3 percent by weight. Compared with the prior art, the motor rotor balancing block of the compressor has the characteristics of good process performance, low cost and the like.
Description
Technical field
The present invention relates to compressor, be specifically related to the high-nitrogen austenitic steel motor rotor balance weight that a kind of rotary compressor of air conditioner is used.
Background technology
Refrigerant compressor in the course of the work, unbalanced eccentric mass 2 can cause the vibration of compressor, is balance eccentric mass 2, need append balance weight 1, as shown in Figure 1.The effect of balance weight mainly is to weaken or eliminate factors such as manufacturing, mounting process and environmental condition to cause the rotor-support-foundation system unbalance vibration, improves the efficiency of compressor.Simultaneously balance weight must satisfy certain requirement, for example under the effect of alternating magnetic field, can not produce eddy current loss, and must possess nonmagneticly, otherwise still can cause the loss of compressor efficiency.
Traditional rotor mainly is copper, allumen or the nonmagnetic iron-carbon alloy of high manganese austenite (manganese is no-magnetic casting iron and manganese series non-magnetic austenitic steel) with balance weight.
From the present market price, the price of no-magnetic casting iron spare is about 1/6 of aluminium alloy price, is 1/8 of copper alloy part.Therefore, development and exploitation no-magnetic casting iron can reduce equipment cost greatly, save non-ferrous metal, have considerable economic benefit and social benefit.The application of present domestic no-magnetic casting iron mainly is nonmagnetic high ferromanganese carbon alloy, but nonmagnetic high ferromanganese carbon alloy requires manganese content more than 20%, and cost is higher.It is very poor at the normal temperature machinability in addition, and in the turning process, because the extruding and the collision of cutter and workpiece, making its austenitic transformation is martensite, and strong flow harden and facilitation phenomenon take place, and causes the cutter sharp wear, and tool life is reduced.
And the magnetic of iron-carbon alloy is relevant with the metallographic structure state, and ferrite has very high magnetic permeability below 768 ℃, and austenitic magnetic permeability is very low, and the iron-carbon alloy of austenitic matrix is nonmagnetic substantially.Nonmagnetic at normal temperatures high ferromanganese carbon alloy is exactly to guarantee that metallic matrix is an austenite to the control of metallographic structure.
Summary of the invention
Purpose of the present invention is exactly the motor rotor balance weight that the compressor that a kind of performance is good, cost is low is provided for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of motor rotor balance weight of compressor, it is characterized in that this motor rotor balance weight adopts no magnetic material to make, and this no magnetic material is the austenitic steel that nitrogen content surpasses 0.3wt%.
Described no magnetic material is that nitrogen content is the austenitic steel of 0.3wt%～3.0wt%.
Described motor rotor balance weight is matrix with the austenitic steel, the Mn content＜20wt% in this matrix.
Compared with prior art, the present invention guarantees that the balance weight material has austenitic matrix, favorable manufacturability energy and lower cost at normal temperatures, in conjunction with the Fe-N phasor, has adopted the rotor balance weight of high nitrogen magnetism-free stainless steel as compressor of air conditioner.Its normal temperature lower substrate is an austenite, pass through to improve the content of nitrogen element in the chemical composition, N%＞0.3%, reduce the use of expensive alloy, Mn%＜20% for example, in order to make it obtain stable austenitic matrix at normal temperatures, other alloying elements of a certain amount of expansion austenitic area, stable austenite have been added simultaneously.Austenite base no-magnetic casting iron of the present invention can successfully replace a large amount of nonferrous materials (as copper, aluminium etc.) of working under alternating magnetic field, significantly reduce production costs.
Description of drawings
Fig. 1 is the schematic diagram of existing compressor;
Fig. 2 is different materials heating curve figure in alternating magnetic field.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
A kind of motor rotor balance weight of rotary compressor of air conditioner, for guaranteeing that the balance weight material has austenitic matrix, favorable manufacturability energy and lower cost at normal temperatures, in conjunction with the Fe-N phasor, adopted the rotor balance weight of high nitrogen magnetism-free stainless steel as compressor of air conditioner.Its normal temperature lower substrate is an austenite, pass through to improve the content of nitrogen element in the chemical composition, N%＞0.3wt%, reduce the use of expensive alloy, Mn%＜20wt% for example, in order to make it obtain stable austenitic matrix at normal temperatures, other alloying elements of a certain amount of expansion austenitic area, stable austenite have been added simultaneously.To be a kind of rotor adopt the compressor of air conditioner of novel no magnetic material with balance weight in the present invention, and its balance weight material is the austenitic steel of nitrogen content greater than 0.3wt%.
As shown in Figure 2, aluminium alloy, austenite base no-magnetic casting iron of the present invention, common grey iron are placed identical alternating magnetic field with ordinary carbon steel, measure its temperature variations, from the result who measures, the intensification variation of austenite base no-magnetic casting iron is identical substantially with aluminium alloy.A large amount of nonferrous materials (as copper, aluminium etc.) that this also further illustrates austenite base no-magnetic casting iron or can successfully replace working under alternating magnetic field significantly reduces production costs.
Nitrogen content in the above-mentioned austenitic steel is 0.3wt%～3.0wt%.
Claims (3)
1. the motor rotor balance weight of a compressor is characterized in that, this motor rotor balance weight adopts no magnetic material to make, and this no magnetic material is the austenitic steel that nitrogen content surpasses 0.3wt% (weight percentage).
2. the motor rotor balance weight of a kind of compressor according to claim 1 is characterized in that, described no magnetic material is that nitrogen content is the austenitic steel of 0.3wt%～3.0wt%.
3. the motor rotor balance weight of a kind of compressor according to claim 1 is characterized in that, described motor rotor balance weight is matrix with the austenitic steel, the Mn content＜20wt% in this matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041361A CN101645628A (en) | 2008-08-04 | 2008-08-04 | Motor rotor balancing block of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041361A CN101645628A (en) | 2008-08-04 | 2008-08-04 | Motor rotor balancing block of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101645628A true CN101645628A (en) | 2010-02-10 |
Family
ID=41657374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810041361A Pending CN101645628A (en) | 2008-08-04 | 2008-08-04 | Motor rotor balancing block of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101645628A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10229776B2 (en) | 2013-10-31 | 2019-03-12 | General Electric Company | Multi-phase magnetic component and method of forming |
| US10229777B2 (en) | 2013-10-31 | 2019-03-12 | General Electric Company | Graded magnetic component and method of forming |
| US11661646B2 (en) | 2021-04-21 | 2023-05-30 | General Electric Comapny | Dual phase magnetic material component and method of its formation |
| CN116512008A (en) * | 2023-07-03 | 2023-08-01 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
| US11926880B2 (en) | 2021-04-21 | 2024-03-12 | General Electric Company | Fabrication method for a component having magnetic and non-magnetic dual phases |
-
2008
- 2008-08-04 CN CN200810041361A patent/CN101645628A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10229776B2 (en) | 2013-10-31 | 2019-03-12 | General Electric Company | Multi-phase magnetic component and method of forming |
| US10229777B2 (en) | 2013-10-31 | 2019-03-12 | General Electric Company | Graded magnetic component and method of forming |
| US11661646B2 (en) | 2021-04-21 | 2023-05-30 | General Electric Comapny | Dual phase magnetic material component and method of its formation |
| US11926880B2 (en) | 2021-04-21 | 2024-03-12 | General Electric Company | Fabrication method for a component having magnetic and non-magnetic dual phases |
| CN116512008A (en) * | 2023-07-03 | 2023-08-01 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
| CN116512008B (en) * | 2023-07-03 | 2023-09-12 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
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Application publication date: 20100210 |