CN101169459A - Device for determining phase of two magnetic fields and method for checking stator winding - Google Patents
Device for determining phase of two magnetic fields and method for checking stator winding Download PDFInfo
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- CN101169459A CN101169459A CNA2007101999179A CN200710199917A CN101169459A CN 101169459 A CN101169459 A CN 101169459A CN A2007101999179 A CNA2007101999179 A CN A2007101999179A CN 200710199917 A CN200710199917 A CN 200710199917A CN 101169459 A CN101169459 A CN 101169459A
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- 238000004804 winding Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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Abstract
The invention relates to a device for determining phase of two magnetic fields (H1, H2) comprises a controlling and calculating unit (108), two magnetic field sensors (101, 102) installed at a predefined distance (d) and connected to the controlling and calculating unit (108), and display units (103-107) connected to the controlling and calculating unit (108). Wherein, the controlling and calculating unit (108) is disposed for determining phase of the two magnetic fields loaded substantially with another magnetic field sensor (101, 102) respectively based on the measured value (211, 212, 213, 214) of magnetic field sensors (101, 102), controlling the display units (103-107), and indicating determined phase. In addition, the invention relates to a method for verifying stator winding, wherein, the disclosed device can be used especially.
Description
Technical field
The present invention relates to a kind of equipment that is used for the phase place in definite two magnetic fields, and the method for the stator winding of check motor or generator.
Background technology
When making motor or generator, need check stator winding and connection thereof.When assembling motor or generator, to notice that especially the rotation direction of rotor conforms to stator.Must carry out the connection of single stator winding in correct mode for this reason, and in the occasion of three phase electric machine, the phase place of correctly distributing three-phase current.Especially when New-type electric machine, just connect after being arranged on stator winding in the stator through being everlasting, produce a series of possibilities of incorrect link or cabling thus.
Mentioned possibility to three-phase current phase error distribution joint.Other possibility is that one or more winding is connected mistakenly with remaining winding, correctly aims at and pack winding into or exchanged two windings.
Another problem when the stator winding of check motor or generator is, makes number of different types for example electric rotating machine or linear electric machine, synchronous motor or asynchronous machine etc. and different big or small motor or generator usually.
Known rotation direction by the stator decision is determined by compass (Kompass) mode.For this purpose, for example three-phase current is arranged on the joint that circular stator provides for this reason, so that produce rotating magnetic field in the inside of stator.Compass is introduced in the magnetic field, and pin begins rotation thus.The user can observe sense of rotation.Make the single winding that can not identify not connection or incorrect link in this way.Such thing can take place equally, a part that is rotated in stator of promptly observing magnetic field with on the different direction of another part, carry out.This method can not be used for linear motor stator.
In a kind of method of check synchronous linear motor, magnetic direction is determined by three magnetic field sensors that are arranged on the selected stator tooth.This method cost is more, because need special equipment for magnetic field sensor accurately is set.Need in addition to use special voltage source, so that in stator, produce special magnetic field.This problem is owing to exist different stator type more outstanding.
Summary of the invention
Therefore task of the present invention is, a kind of method and a kind of equipment are provided, and they are applicable to definite magnetic field, but and the stator winding that still can check different types of structure simply exactly.
This task is by having the equipment of the phase place described feature of claim 1, that be used for determining two magnetic fields, and have the described feature of claim 5, be used to check the method for stator winding to finish.Favourable improvement project is dependent claims and the theme that illustrates later.
The equipment that is used for the phase place in definite two magnetic fields of the present invention is applicable to carries out method of the present invention, and has corresponding device thereof.Equipment of the present invention have especially control and computing unit, two apart the magnetic field sensor that is connected with computing unit with control and the display device that is connected with computing unit with control, the distance of wherein said two magnetic field sensors apart greater than 10mm and less than 30mm, is in particular 25mm especially.Control and computing unit are used for being determined by the measured value of two magnetic field sensors the phase place in two magnetic fields, and wherein each magnetic field sensor in two magnetic field sensors is loaded by another magnetic field in two magnetic fields basically.Controlled and the computing unit control of display device makes it indicate determined phase place.Especially the occasion at three-phase current provides [(π-a);-a], [a; (π-a) and [a; A] the value scope, and carry out comprehensively for demonstration, should in being approximately 0 scope, particularly fully choose at this a less than π/3.Can " bear phase place " then, " just " and " mistake " or " same-phase " distribute to these scopes.Magnetic field sensor can be configured to digital or analog Hall element or magnetic resistance (MR) sensor especially, perhaps is configured to Foster probe (fluxgate (fluxgate)).For control and computing unit application have integrated circuit or microprocessor.
The present invention relates at least two magnetic fields, for example by the magnetic field that winding produced of stator.For by two adjacent first magnetic field that winding produced and second magnetic fields, each magnetic field loads another magnetic field sensor basically respectively, that is for example to load first sensor more than second sensor in first magnetic field, and it is more than first sensor that second magnetic field loads second sensor.
Provide a kind of equipment by solution of the present invention, it can be simply and accurately determines phase place between the adjacent stator winding.This equipment can be constructed on small portable ground, and in practice because its simple structure is proved solid especially and reliable.Equipment of the present invention is particularly suitable for using in the method for the invention.
Control and computing unit are set are used to control display device, make the loading of its indication magnetic field to each magnetic field sensor in the magnetic field sensor, this is favourable.Can check two magnetic field sensors whether to load in simple mode thus, the special thus integrity that allows to check accordingly, produces the winding in magnetic field by magnetic field.
Display device has at least one light emitting diode, at least one graphic alphanumeric display and/or digital indicator and suits.Described in addition equipment can have interface, for example is used to connect computing machine.Preferred improvement project has three or five light emitting diodes.The equipment that has light emitting diode of the present invention can be made especially simply, and is fit to the indication magnetic direction particularly well.Can respectively light emitting diode be attached troops to a unit in magnetic field sensor especially, so that as of the loading of above-mentioned indication magnetic field to magnetic field sensor.Each light emitting diode can be provided for indicating described phase range.
Equipment of the present invention advantageously has electric supply installation, particularly battery.By battery is provided, this equipment can be constructed by compact easily with portablely.Optional in addition or additionally, this equipment also can be configured to by the externally fed device for example power-supply device power.
The method that is used to check the stator winding of motor and generator of the present invention, on this stator winding, be applied with three-phase current or exchange current, in the method, at first determine first phase place in the magnetic field that in first pair of adjacent stator winding, produced by three-phase current or exchange current.Then with determined first phase place with compare by the desired phase place of the three-phase current that applies or exchange current and/or with second phase place in the magnetic field that in second pair of adjacent stator winding, is produced by three-phase current or exchange current.Then according to the above-mentioned correctness (Fehlerfreiheit) of relatively coming to determine stator winding.This method is carried out simple especially, and is fit to various types of motors and generator.
In method of the present invention, suitable is, the phase place of the described step of determining first phase place and first phase place that will determine and expectation and/or the step that compares with definite second phase place, for other, particularly all adjacent stator winding are to carrying out repetition.Thus can be especially simple and promptly check all stator winding fully.
Preferably export determined phase place with digital form.It can show on digital indicator especially then, exports by existing interface etc.
Suitable especially is to use equipment of the present invention to determine phase place in the method for the invention.Equipment of the present invention is fit to method of the present invention particularly well and generally is used to check the method for the stator winding of motor or generator to use, because its structure compact is light and manufacturing expense suitable.
Additional advantage of the present invention and improvement project provide from explanation and accompanying drawing.
Easy to understand, above-mentioned and following also not only can be in the combination that at every turn provides but also in other combination or use separately with the feature of explanation, and do not leave framework of the present invention.
The present invention schematically illustrates in the accompanying drawings according to embodiment, describes in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 schematically illustrates the embodiment of equipment of the present invention on the stator of linear electric machine;
Fig. 2 illustrates line chart, two sensor signals by the magnetic field of equipment collection shown in Figure 1 of its expression;
Fig. 3 represents the process flow diagram of a kind of embodiment of the method for the invention.
Reference numerals list
100 equipment
101,102 digital hall sensor
103-107 LED
108 microprocessors
109 batteries
150 stators
The 151-154 stator tooth
151 '-154 ' stator winding
200 line charts
201 y axle U
202 x axle t
211,212 sensing datas
213 rising edges
214 measured values at time point 213
The 301-306 method step
H1-H4 magnetic field
U, V, W three-phase current phase place
Embodiment
Fig. 1 totally represents one of equipment of the present invention preferred embodiment with 100.Equipment 100 has and is configured to LED103,104 display device under two magnetic field sensors that are configured to digital hall sensor 101,102 and two.The electric supply installation that this external equipment 100 has the display device that is configured to LED 105,106,107, the control that is configured to microprocessor 108 and computing unit and is configured to battery 109.Hall element 101,102, LED 103 to 107, microprocessor 108 and battery 109 to each other in case of necessity for example can by other assemblies for example resistance, electric capacity, transistor etc. be connected, as known for the professional.
Hall element has each other apart from d, and this distance is 25mm in this example.So select apart from d, make equipment 100 be applicable to and use stator commonly used.For example, the stator tooth of a class modern electrical machine has the tooth pitch D of about 25mm.By described equipment is aimed at tooth sideling, this equipment also can be used to have the stator of less tooth pitch in particularly advantageous mode.So be equivalent to the diagonal line of a rectangle apart from d, this rectangle is determined by tooth pitch D on one side.
LED 103 attaches troops to a unit in sensor 101, and LED 104 attaches troops to a unit in sensor 102.LED 103 and 104 makes that by microprocessor 108 controls these LED send signal by lighting or glimmering when corresponding sensor 101 or 102 is loaded by magnetic field.These LED support that the user correctly is arranged on equipment 100 on stator winding or the stator tooth.LED 103 and 104 indicates the magnetic acitvity of corresponding stator winding in addition.
In Fig. 1, express a section of stator 150 equally.Stator 150 has equidistant tooth 151 to 154.Tooth 151 to 154 distance each other respectively is D.In the example shown, tooth 151 to 154 distance D each other be equivalent to sensor 101 and 102 apart from d, i.e. 25mm.
Each tooth 151 to 154 has a winding 151 ' to 154 '.It is as common in the three phase electric machine, and single winding 151 ' to 154 ' connects each other like this, makes per the 3rd winding be connected to each other.In the example shown, winding 151 ' is connected with winding 154 ' etc.Easy to understand, parallel connection is fine equally.When assembling motor or generator, must be noted that cabling that single winding is correct each other or connection and for the correct distribution of phase U, V, W.Electric current by winding 151 ' produces a magnetic field H 1 etc.
Be the check stator, stator is connected on joint U, V, the W of three-phase current power supply (not shown) with its joint.The result forms the magnetic field of a rotation, and they can be by equipment 100 checks.
Equipment 100 one after the other is arranged on each adjacent tooth to 151,152 for this reason; 152,153; 153, above 154 etc.LED 105,106 is used to indicate two phase places that load the magnetic field of Hall elements 101,102., in motor, these phase places can be distributed to the sense of rotation of rotor.LED 105,106 is by microprocessor 108 controls, make when magnetic field turns left in equipment plane (corresponding to drawing) or is mobile, LED 105 lights (perhaps flicker), otherwise, when magnetic field turned right in equipment plane (corresponding to drawing) or is mobile, LED 106 lighted (perhaps flicker).
Mobile or rotation direction can be derived from the phase place in magnetic field.If the magnetic field H 2 of load sensor 102 is ahead of the magnetic field H 1 of load sensor 101, then this is corresponding to being moved to the left, if the magnetic field H 2 of load sensor 102 lags behind the magnetic field H 1 of load sensor 101, as shown in Figure 2, then this is corresponding to moving right.
LED 107 is used for the misdirection function.Galvanization or detected phase shifts are not enough if for example be positioned at winding under the sensor 101,102, and then this is by LED 107 indications.At this on the one hand, with reference to the constant a of far ahead explanation, this constant described enough phase distance from.
One of the method for the stator winding that is used for checking motor or generator of the present invention preferred embodiment, the user in succession at all stator winding to 151 ', 152 '; 152 ', 153 '; 153 ', 154 ' etc. or stator tooth to 151,152; 152,153; 153,154 above equipment 100 is set, and with corresponding indicated direction (phase place) and expectation or compare with previous indicated direction.Must be noted that second kind of occasion, indicate by LED 105 or by LED 106 usefulness signals in the same direction of each centering.
How explanation can determine the phase place in second magnetic field according to Fig. 2, thereby determines sense of rotation.Draw a line chart 200 among Fig. 2, wherein the output signal of magnetic field sensor 101,102 illustrated with respect to the time.Output signal is illustrating corresponding to the time t on the x axle 202 as voltage U on the y axle 201.In this line chart 200, show of the variation 211,212 of the output voltage of sensor 101 or 102 along with the time.Shown in voltage curve form by single measured value (not shown), these measured values respectively have the time gap in several ns scopes.Sensor arrangement is bipolar digital Hall element.Bipolar digital Hall element is output voltage when exist determining the magnetic field of direction (for example south orientation north) usually, on the contrary its output voltage not when having the magnetic field of other direction (for example north orientation south).
Measuring curve (voltage curve) 211 changes corresponding to the time of the symbol of the magnetic field H 1 of load sensor 101 basically.Equally, measuring curve 212 changes corresponding to the time of the symbol of the magnetic field H 2 of load sensor 102 basically.Microprocessor 108 can be determined the phase relation in two magnetic fields from the curve that exists.It especially can be from deriving phase relation with the rising of selected sensor or the relation of putting fall time.
In the example shown, select sensor 101 and in the output valve of the output 211 of (arbitrarily) rise time point (positive edge) and another sensor relatively with it for this reason.Illustrate be rise time point 213 measuring curve 211 with of curve 212 under measured value 214 relatively.
As in the example shown, if the output valve of sensor 102 is zero at rise time of sensor 101 point 213, load sensor 201 or cause that the magnetic field H 1 of measuring curve 211 is ahead of load sensor 202 or causes the magnetic field H 2 of measuring curve 212 then.What belong to this characteristic is moving direction or rotation direction towards the direction of magnetic field sensor 102.Microprocessor 108 triggers LED 106 as a result.
On the contrary, if sensor 102 is positive (not shown) in the output valve of the rise time of sensor 101 point 213, cause that then the magnetic field H 1 of measuring curve 211 lags behind the magnetic field H 2 that causes measurement curve 212.What belong to this characteristic is moving direction or rotation direction towards magnetic field sensor 101 directions.Microprocessor 108 triggers LED 105 as a result.
Easy to understand can be observed falling edge equally.Equally can be for example derive phase place for the professional from the output data of analog sensor.
In Fig. 3,, on these stator winding, be applied with three-phase current or exchange current now according to a kind of preferred implementation of the method for flowchart text stator winding that is used to check motor or generator of the present invention.
This method is in method step 301 beginnings.In the method step of following 302, equipment of the present invention, particularly according to the equipment 100 of Fig. 1, be arranged on like this first pair of adjacent stator winding above, make each of two magnetic field sensors can both detect the magnetic field of stator winding.This setting up procedure is supported that by LED103 and 104 in case magnetic field is detected by affiliated magnetic field sensor 101 or 102, LED is with regard to luminous or flicker.As long as this equipment is provided with in accordance with regulations, phase place is just determined by microprocessor 108, and is indicated by corresponding LED 105 to 107.
In the method step of following 303, the user for next adjacent stator winding to the described operation of repetition methods step 302.Can read the right phase place of this adjacent stators winding at the end of method step 303.
In the method step of following 304, two phase places of determining so far now are compared to each other.If two phase places are identical, so or return method step 303, it is right to observe next stator winding at this, otherwise when inspected all stator winding to the time, in step 305, finish this method.
If two phase place differences that adjacent stator winding is right then this means a vicious stator winding, to this branch in step 306, this method finishes.Must repair stator winding then, for example change or reconnect.
Easy to understand, shown in only express particularly preferred embodiment of the present invention in the accompanying drawing.Can expect each other embodiment in addition, other layout or the number by sensor or other assemblies particularly, and do not leave scope of the present invention.
Claims (9)
1. be used for determining two magnetic fields (H1, the equipment of phase place H2) is characterized in that,
-control and computing unit (108),
Magnetic field sensor (101,102) that-two distances of apart predesignating (d) are provided with, that be connected with computing unit (108) with described control and
-the display device (103-107) that is connected with computing unit (108) with described control,
Wherein, described control and computing unit (108) are provided for by magnetic field sensor (101,102) measured value (211,212,213,214) determine that two load another magnetic field sensor (101 basically respectively, 102) magnetic field (H1, H2) phase place, and control described display device (103-107), the phase place that its indication is determined.
2. according to the equipment of claim 1, it is characterized in that described control and computing unit (108) are provided for controlling display device (103-107), (H1 is H2) to the loading of each magnetic field sensor (101,102) to make its indication magnetic field.
3. according to the equipment of claim 1 or 2, it is characterized in that described display device has at least one light emitting diode (103-107), at least one graphic alphanumeric display and/or at least one digital indicator.
4. according to each described equipment in the claim 1 to 3, it is characterized in that electric supply installation, particularly battery (109).
5. be used to check the method for the stator winding (151 '-154 ') of motor or generator, on this stator winding, be applied with three-phase current or exchange current, it is characterized in that following step:
A) determine by three-phase current or exchange current first (151 ', 152 '; 152 ', 153 '; 153 ', 154 ') magnetic field (H1, first phase place H2) that is produced in the adjacent stator winding (151 '-154 ');
B) then will determined first phase place and by the desired phase place of the three-phase current that applies or exchange current and/or with by three-phase current or exchange current second to (151 ', 152 '; 152 ', 153 '; 153 ', 154 ') magnetic field that is produced in the adjacent stator winding (151 '-154 ') (H2, second phase place H3) compares; And
C) according to the described correctness of relatively determining stator winding (151 '-1 54 ').
6. method according to claim 5, wherein, be used for determining the step of first phase place and being used for determined first phase place and desired phase place and/or the step that compares with determined second phase place, for other, the particularly pairing (151 ', 152 ' of all adjacent stators windings (151 '-154 '); 152 ', 153 '; 153 ', 154 ') carry out repetition.
7. according to claim 5 or 6 described methods, it is characterized in that described definite phase place provides with digital form.
8. according to each described method in the claim 5 to 7, it is characterized in that each described equipment (100) is used to determine phase place in the claim 1 to 4.
9. according to the application of the equipment (100) of each described stator winding (151 '-154 ') that is used to check motor or generator in the claim 1 to 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006050551.4 | 2006-10-26 | ||
| DE200610050551 DE102006050551A1 (en) | 2006-10-26 | 2006-10-26 | Device for determining a phase position of two magnetic fields and method for checking stator windings |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102251763A Division CN102360056A (en) | 2006-10-26 | 2007-10-26 | Method for checking stator windings of motor or generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101169459A true CN101169459A (en) | 2008-04-30 |
| CN101169459B CN101169459B (en) | 2012-02-08 |
Family
ID=39295011
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102251763A Pending CN102360056A (en) | 2006-10-26 | 2007-10-26 | Method for checking stator windings of motor or generator |
| CN2007101999179A Expired - Fee Related CN101169459B (en) | 2006-10-26 | 2007-10-26 | Device for determining phase of two magnetic fields and uses |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102251763A Pending CN102360056A (en) | 2006-10-26 | 2007-10-26 | Method for checking stator windings of motor or generator |
Country Status (3)
| Country | Link |
|---|---|
| CN (2) | CN102360056A (en) |
| DE (1) | DE102006050551A1 (en) |
| FR (1) | FR2907912A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059547A (en) * | 2013-01-30 | 2013-04-24 | 上海俊尔新材料有限公司 | Electroplating PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy material and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010033953B4 (en) * | 2010-08-10 | 2013-08-14 | Bombardier Transportation Gmbh | Method for detecting the direction of rotation |
| SI23520A (en) | 2010-10-19 | 2012-04-30 | Univerza v Mariboru Fakulteta za elektrotehniko, računalništvo in informatiko | Tester and the method of testing the direction of rotating and accuracy of stators winding connection of electric motor |
| DE102019123406A1 (en) * | 2019-09-02 | 2021-03-04 | Phoenix Contact Gmbh & Co. Kg | Method and device for determining the direction of rotation of a rotating field and hybrid motor starter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2583885B1 (en) * | 1985-06-21 | 1987-07-31 | Commissariat Energie Atomique | GRADIENT METER FOR MAGNETIC FIELD USING MULTIPLE NMR PROBES |
| JP3559459B2 (en) * | 1998-12-14 | 2004-09-02 | 株式会社東芝 | Magnetic field sensor |
| DE19908361A1 (en) * | 1999-02-26 | 2000-09-21 | Klemens Gintner | Magnetoresistive sensor device for detecting rotation rate and rotation direction of rotating object uses magnetic field source attached to object and 2 cooperating sensors providing phase-shifted magnetic field components |
| JP3353826B2 (en) * | 1999-06-24 | 2002-12-03 | ジーイー横河メディカルシステム株式会社 | Magnetic field inhomogeneity measurement device, phase correction device, and magnetic resonance imaging device |
| DE19940783A1 (en) * | 1999-08-27 | 2001-03-01 | Blocher Motor Gmbh | Control method especially for permanent magnet excited synchronous machines of elevator drives, involves continually matching phase-angles of magnetic field to optimal running conditions of machine |
| US6777932B2 (en) * | 2000-03-23 | 2004-08-17 | Matsushita Electric Industrial Co., Ltd. | Magnetic field sensor |
-
2006
- 2006-10-26 DE DE200610050551 patent/DE102006050551A1/en not_active Withdrawn
-
2007
- 2007-10-24 FR FR0758537A patent/FR2907912A1/en not_active Withdrawn
- 2007-10-26 CN CN2011102251763A patent/CN102360056A/en active Pending
- 2007-10-26 CN CN2007101999179A patent/CN101169459B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059547A (en) * | 2013-01-30 | 2013-04-24 | 上海俊尔新材料有限公司 | Electroplating PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy material and preparation method thereof |
| CN103059547B (en) * | 2013-01-30 | 2015-05-06 | 上海俊尔新材料有限公司 | Electroplating PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006050551A1 (en) | 2008-06-26 |
| CN101169459B (en) | 2012-02-08 |
| FR2907912A1 (en) | 2008-05-02 |
| CN102360056A (en) | 2012-02-22 |
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