CN102477553B - Surface treatment method for mechanical plating of neodymium iron boron workpiece - Google Patents
Surface treatment method for mechanical plating of neodymium iron boron workpiece Download PDFInfo
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Abstract
The invention provides a surface treatment method for mechanical plating of a neodymium iron boron workpiece. The surface treatment method for mechanical plating comprises the steps of: (1) using a common degreasing agent to degrease a neodymium iron boron workpiece, then conducting countercurrent flushing with tap water so as to remove oil stains on the surface of the neodymium iron boron workpiece; (2) subjecting the degreased neodymium iron boron workpiece to rust removal with a common rust remover; and (3) putting the rust removed neodymium iron boron workpiece, a flexible abrasive and alloy powder in a mass ratio of 20-100:25-50:1-4 into a roller special for mechanical plating so as to carrying out mechanical plating to the neodymium iron boron workpiece. Able to undergo under room temperature, the method of the invention has the characteristics of small energy consumption, low cost, simple process, varied formula, convenient operation, high production efficiency, no hydrogen embrittlement phenomenon, and small environmental pollution, etc.
Description
Technical field
The present invention relates to a kind of surface treatment method of mechanical plating of neodymium iron boron workpiece.
Technical background
At present, neodymium iron boron anticorrosion gradually by plating to other more environmental protection method develop.For the product compared with large gauge, there is painting anticorrosion layer, but application problem cannot have been solved for the product compared with small dimension.This just needs another method to carry out replacing electroplating.Mechanical plating is at room temperature carried out with it, energy consumption is little, cost is low, technique is simple, it is various, easy to operate to fill a prescription, production efficiency is high, become comparatively ideal alternative method without Hydrogen Brittleness Phenomena, the feature such as low in the pollution of the environment.Used comparatively extensive in other industry about mechanical plating, Patents has: the anticorrosive treatment process (85107030) of iron, mechanical zincing machine for workpiece (93222362.1) etc.
Summary of the invention
According to a further aspect in the invention, the object of the invention is a kind of surface treatment method of dry method mechanical plating of neodymium iron boron workpiece, the surface treatment method of described dry method mechanical plating comprises the steps:
(1) adopt grease-removing agent to carry out degreasing to neodymium iron boron workpiece, then use tap water back flushing, to remove the greasy dirt on neodymium iron boron workpiece surface;
(2) rust remover is used to eliminate rust to the neodymium iron boron workpiece after degreasing;
(3) mass ratio of neodymium iron boron workpiece, flexible grinding material and tin alloy powder after rust cleaning is 20-100: 25-50: 1-4 put into mechanical plating special cylinder, this special cylinder uses in UTGE-3 type mechanical plating equipment made in U.S.A, carries out mechanical plating to neodymium iron boron workpiece.Wherein said special cylinder rotates with the speed of 10 ~ 20r/min and carries out mechanical plating, and rotation time is preferably 60 ~ 90 minutes.
Preferably, described flexible grinding material is corn cob abrasive material or plastic abrasive, and the granularity of described flexible grinding material is 20 orders.
Preferably, described alloy powder comprises metal powder, lead and yellow-collation (that is, plumbous oxide) and alum powder, metal powder: lead and yellow-collation: the weight ratio of alum powder is 6-8: 1: 2-3, and the particle diameter of glass putty, lead and yellow-collation and alum powder is greater than 200 orders.Wherein, described metal powder is selected from one or more in zinc powder, aluminium powder, glass putty and copper powder.
Preferably, the thickness of mechanical plating coating is 3-5 micron.
Grease-removing agent used in the present invention can be configured by commercially available any one metal cleaner and form, the 3g/l% aqueous solution of such as commercial metals clean-out system HJ-W122.Rust remover used in the present invention comprises dust technology, potassium fluoborate and tensio-active agent (such as: Sodium dodecylbenzene sulfonate), such as, described rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.Wherein, tensio-active agent has the effect significantly suppressing acid mist, and the effect of inhibiter (such as potassium fluoborate) is the excessive corrosion avoiding causing metal, alleviates Hydrogen Brittleness Phenomena.Because the surface of the neodymium iron boron workpiece after degreasing is cleaner, therefore eliminating rust the time can be shorter.
Because dry method mechanical electroplating method provided by the present invention at room temperature carries out, therefore there is the advantage that energy consumption is little, cost is low.And, because dry method mechanical electroplating method of the present invention carries out mechanical plating in dry environment, therefore can save pretreated nickel plating, copper facing process, not only simplify technique, reduce cost, and environmental protection more, thoroughly eradicated Hydrogen Brittleness Phenomena simultaneously.
Embodiment
Below with reference to embodiment, the present invention will be further described, and embodiments of the invention are only for illustration of technical scheme of the present invention, and non-limiting the present invention.
Embodiment 1: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 20: 25: 1) to put in mechanical plating special cylinder, this special cylinder rotates 60 minutes to carry out mechanical plating to neodymium iron boron workpiece with the speed of 10r/min.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Embodiment 2: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by neodymium iron boron workpiece, plastic abrasive (particle diameter 20 order after rust cleaning, irregularly shaped) and alloy powder is (wherein, neodymium iron boron workpiece: plastic abrasive: the mass ratio of alloy powder is 100: 50: 4) put in mechanical plating special cylinder, this special cylinder rotates 60 minutes with the speed of 10r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone, more coarse than showing slightly of corn core abrasive material.
Embodiment 3: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 60: 40: 3) put in mechanical plating special cylinder, this special cylinder rotates 60 minutes with the speed of 20r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone, and parts against wear appears in workpiece surface, but quality of coating does not have notable difference.
Embodiment 4: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 80: 40: 4) put in mechanical plating special cylinder, this special cylinder rotates 60 minutes with the speed of 15r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Embodiment 5: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) and alloy powder (wherein neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 80: 40: 4) are put in mechanical plating special cylinder, this special cylinder rotates 90 minutes with the speed of 10r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone, and rete does not obviously thicken.
Embodiment 6: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 80: 40: 4) put in mechanical plating special cylinder, this special cylinder rotates 75 minutes with the speed of 10r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Embodiment 7: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 80: 40: 4) put in mechanical plating special cylinder, this special cylinder rotates 60 minutes with the speed of 10r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 8: 1: 2.After completing mechanical plating, the surface of neodymium iron boron workpiece shows slightly gloomy.
Embodiment 8: the zinc-plated alloy production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by neodymium iron boron workpiece, plastic abrasive (particle diameter 20 order after rust cleaning, irregularly shaped) and alloy powder is (wherein, neodymium iron boron workpiece: plastic abrasive: the mass ratio 80: 40: 4 of alloy powder) put in mechanical plating special cylinder, this special cylinder rotates 60 minutes with the speed of 10r/min, to carry out mechanical plating to neodymium iron boron workpiece.Wherein, alloy powder comprises glass putty, lead and yellow-collation and the alum powder (particle diameter of glass putty, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 7: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone, more coarse than showing slightly of corn core abrasive material.
Embodiment 9: the zinc-plated production technique of dry method mechanical
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical zinc-plating alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 20: 25: 1) to put in mechanical plating special cylinder, this special cylinder rotates 60 minutes to carry out mechanical plating to neodymium iron boron workpiece with the speed of 10r/min.Wherein, alloy powder comprises zinc powder, lead and yellow-collation and the alum powder (particle diameter of zinc powder, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Embodiment 10: dry method mechanical copper facing production technique
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn cob abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 20: 25: 1) to put in mechanical plating special cylinder, this special cylinder rotates 60 minutes to carry out mechanical plating to neodymium iron boron workpiece with the speed of 10r/min.Wherein, alloy powder comprises copper powder, lead and yellow-collation and the alum powder (particle diameter of copper powder, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Embodiment 11 dry method mechanical copper-beryllium production technique
1, degreasing
Specification is selected to be the neodymium iron boron workpiece of 10*10*10mm.Container neodymium iron boron workpiece being put into the 3g/l% aqueous solution filling commercially available metal cleaner HJ-W122 soaks, and continuous this container of rotation shake.After the surface of neodymium iron boron workpiece is without greasy dirt, takes out and use water back flushing neodymium iron boron workpiece 1 minute.
2, eliminate rust
Use rust remover to eliminate rust to the neodymium iron boron workpiece after degreasing, the rust cleaning time is 1-3 minute.Wherein rust remover comprises 3v/v% dust technology, potassium fluoborate and Sodium dodecylbenzene sulfonate and prepares according to weight ratio about 150: 0.03: 0.05.After rust cleaning terminates, by water back flushing neodymium iron boron workpiece 1 minute.
3, mechanical plating tin alloy
At room temperature by the neodymium iron boron workpiece after rust cleaning, corn core abrasive material (particle diameter be about 20 orders) with alloy powder (wherein, neodymium iron boron workpiece: corn cob abrasive material: the mass ratio of alloy powder is 20: 25: 1) to put in mechanical plating special cylinder, this special cylinder rotates 60 minutes to carry out mechanical plating to neodymium iron boron workpiece with the speed of 10r/min.Wherein, alloy powder comprises copper tin, lead and yellow-collation and the alum powder (particle diameter of copper tin, lead and yellow-collation and alum powder is for being greater than 200 orders) that weight ratio is 6: 1: 3.After completing mechanical plating, the surface of neodymium iron boron workpiece is white light tone.
Performance test is tested:
Adopt refined scholar woods DW-100 equipment, at 80 DEG C, under humidity 85% condition, the product plated out is tested, see table 1.
Table 1
Experiment find: except embodiment 7 and 10 produce 24 hours time of getting rusty namely there is red rust except, all the other times of getting rusty can more than 36 hours.
It is to be understood that foregoing invention content and embodiment are intended to the practical application proving technical scheme provided by the present invention, should not be construed as limiting the scope of the present invention.Those skilled in the art in spirit of the present invention and principle, when doing various amendment, equivalent replace or improve.Protection scope of the present invention is as the criterion with appended claims.
Claims (3)
1. a surface treatment method for the dry method mechanical plating of neodymium iron boron workpiece, the surface treatment method of described dry method mechanical plating comprises the steps:
(1) adopt conventional grease-removing agent to carry out degreasing to neodymium iron boron workpiece, then use tap water back flushing, to remove the greasy dirt on neodymium iron boron workpiece surface;
(2) conventional rust remover is used to eliminate rust to the neodymium iron boron workpiece after degreasing; With
(3) be that 20-100:25-50:1-4 puts in mechanical plating special cylinder by the mass ratio of neodymium iron boron workpiece, flexible grinding material and alloy powder after rust cleaning, mechanical plating is carried out to neodymium iron boron workpiece, wherein, described flexible grinding material is corn cob abrasive material or plastic abrasive, and the granularity of described flexible grinding material is 20 orders; Described alloy powder comprises metal powder, lead and yellow-collation and alum powder, metal powder: lead and yellow-collation: the weight ratio of alum powder is 6-8:1:2-3, the particle diameter of metal powder, lead and yellow-collation and alum powder is greater than 200 orders, described metal powder be selected from zinc powder, aluminium powder, glass putty and copper powder one or more.
2. surface treatment method according to claim 1, is characterized in that, the thickness of mechanical plating coating is 3-5 micron.
3. surface treatment method according to claim 1, is characterized in that, described special cylinder rotates with the speed of 10 ~ 20r/min and carries out mechanical plating.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177786A1 (en) * | 1984-09-11 | 1986-04-16 | Nippon Dacro Shamrock Co. Ltd. | Anti-corrosion treatment process for iron materials |
| CN1400332A (en) * | 2002-05-21 | 2003-03-05 | 山东大学 | Mechanical zinc-plating process |
| CN1673414A (en) * | 2005-05-19 | 2005-09-28 | 北京航空航天大学 | Technology adapted for magnesium alloy matrix surface mechanical zinc-and tin-plating composite coating |
| CN1789491A (en) * | 2005-12-23 | 2006-06-21 | 昆明理工大学 | Process for mechanical plating zinc based rare earth alloy |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177786A1 (en) * | 1984-09-11 | 1986-04-16 | Nippon Dacro Shamrock Co. Ltd. | Anti-corrosion treatment process for iron materials |
| CN1400332A (en) * | 2002-05-21 | 2003-03-05 | 山东大学 | Mechanical zinc-plating process |
| CN1673414A (en) * | 2005-05-19 | 2005-09-28 | 北京航空航天大学 | Technology adapted for magnesium alloy matrix surface mechanical zinc-and tin-plating composite coating |
| CN1789491A (en) * | 2005-12-23 | 2006-06-21 | 昆明理工大学 | Process for mechanical plating zinc based rare earth alloy |
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