SU318637A1 - DEVICE FOR DRAWING GALVANIC COATINGS ON THE INTERNAL SURFACE OF THE HOLLOW PARTS - Google Patents
DEVICE FOR DRAWING GALVANIC COATINGS ON THE INTERNAL SURFACE OF THE HOLLOW PARTSInfo
- Publication number
- SU318637A1 SU318637A1 SU1460122A SU1460122A SU318637A1 SU 318637 A1 SU318637 A1 SU 318637A1 SU 1460122 A SU1460122 A SU 1460122A SU 1460122 A SU1460122 A SU 1460122A SU 318637 A1 SU318637 A1 SU 318637A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hollow parts
- internal surface
- galvanic coatings
- anode
- coatings
- Prior art date
Links
- 238000000576 coating method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Description
Р1зобретение относитс к области нанесени гальванических покрытий.The invention relates to the field of electroplating.
Известно устройство дл нанесени гальванических покрытий на внутреннюю поверхность полых деталей, содержащее корпус с вращающимс анодом. Одпако такое устройство не обеспечивает получени качественпых покрытий при малых межэлектродных рассто ни х и высоких плотност х тока.A device for electroplating on the inner surface of hollow parts is known, comprising a housing with a rotating anode. However, such a device does not provide high-quality coatings at small interelectrode distances and high current densities.
Целью изобретени вл етс повышение скорости осаждени металла и качества покрыти при малых межэлектродных рассто ни х . Это достигаетс тем, что наружна поверхность анода имеет винтовую нарезку.The aim of the invention is to increase the deposition rate of the metal and the quality of the coating at small interelectrode distances. This is achieved by the fact that the outer surface of the anode has a screw thread.
На чертеже показано предлагаемое устройство .The drawing shows the proposed device.
Оно состоит из корпуса / с вращающимс анодом 2, наружна поверхность которого имеет винтовую нарезку. Анод снабжен свинцовой облицовкой и цапфами 3 и 4 с напрессованными на них защитными винипластовыми втулками. Верхн цапфа оборудована четырехгранным коническим хвостовиком, служащим дл сопр жени с муфтой приводного устройства.It consists of a housing / with a rotating anode 2, the outer surface of which has a screw thread. The anode is provided with lead lining and trunnions 3 and 4 with protective vinyl plastic sleeves pressed on them. The upper trunnion is equipped with a four-sided tapered shank, which serves to mate with the drive coupling.
Анод 2 устанавливаетс в обрабатываемое изделие 5 при помощи центрирующих приспособлений 6 и 7 с винипластовыми подшипниками 8 и 9 и приводитс во вращение от редуктора с заданной скоростью. Наружный диаметр анода выполн етс с точностью, обеспечивающей минимальные величины межэлектродного рассто ни . При нанесении покрыти это рассто ние может быть доведено до 0,8-1,0 мм. Плотность тока может повышатьс до 150 а/дм, что создает интенсивный обмен электролита в прикатодной зоне, усиливает отвод скапливаюп 1,егос водорода на катоде, обеспечивает высокую скоростьThe anode 2 is installed in the workpiece 5 by means of centering devices 6 and 7 with vinyl plastic bearings 8 and 9 and is driven into rotation from the gearbox at a given speed. The outer diameter of the anode is made to an accuracy that ensures minimum values of the interelectrode distance. When coating is applied, this distance can be increased to 0.8-1.0 mm. The current density can increase to 150 a / dm, which creates an intense exchange of electrolyte in the cathode zone, enhances the removal of accumulation of hydrogen on the cathode, provides a high speed
осаждени и качество покрытий.deposition and coating quality.
Предмет изобрегепи Subject matter
Устройство дл нанесени гальванических покрытий на внутреннюю поверхность полыхElectroplating device on the inner surface of hollow
деталей, содержащее корпус с вращающпмс анодом, отличающеес тем, что, с целью повышени скорости осаждени металла и качества покрыти при малых межэлектродных рассто ни х, наружна поверхность аподаparts, comprising a housing with a rotating anode, characterized in that, in order to increase the deposition rate of the metal and the quality of the coating at small electrode spacings, the outer surface of the apode
имеет винтовую нарезку.has a screw thread.
.. . ..
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU318637A1 true SU318637A1 (en) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210497A (en) * | 1977-02-08 | 1980-07-01 | Wave Energy Development I Vastmanland Aktiebolag | Method for providing a surface coating on the wall in a cavity by means of electrolytic plating and the surface coating produced by the method |
| US4235691A (en) * | 1978-06-30 | 1980-11-25 | Wave Energy Development I Vastmanland Aktiebolag | Apparatus for electroplating an outer surface of a workpiece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210497A (en) * | 1977-02-08 | 1980-07-01 | Wave Energy Development I Vastmanland Aktiebolag | Method for providing a surface coating on the wall in a cavity by means of electrolytic plating and the surface coating produced by the method |
| US4235691A (en) * | 1978-06-30 | 1980-11-25 | Wave Energy Development I Vastmanland Aktiebolag | Apparatus for electroplating an outer surface of a workpiece |
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