CN104928736A - Chromium plating repair method and clamp for inner circle surface of rear journal - Google Patents
Chromium plating repair method and clamp for inner circle surface of rear journal Download PDFInfo
- Publication number
- CN104928736A CN104928736A CN201510309981.2A CN201510309981A CN104928736A CN 104928736 A CN104928736 A CN 104928736A CN 201510309981 A CN201510309981 A CN 201510309981A CN 104928736 A CN104928736 A CN 104928736A
- Authority
- CN
- China
- Prior art keywords
- headed face
- inner headed
- screen board
- chromium plating
- rear shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a chromium plating repair method and a chromium plating repair clamp for an inner circle surface of a rear journal. The inner circle surface needing chromium plating repair is formed in the middle of the rear journal; an upper inner circle surface and a lower inner circle surface are adjacent to the inner circular surface, the upper inner circle surface is positioned on the upper surface of the inner circle surface, and the lower inner circle surface is positioned on the lower surface of the inner circular surface; the chromium plating repair clamp comprises an upper screen board and a lower screen board; the upper screen board is matched with the upper inner circle surface in size and made of plastics; the lower screen board is matched with the lower inner circle surface in size and made of plastics; a center through hole for an anode bar to pass is formed in the upper screen board; a center blind hole through which the bottom of the lower screen board can be propped against the anode bar is formed in the lower screen board. The chromium plating repair clamp provided by the invention can be used for firmly fixing the rear journal to avoid non-uniform thickness of a clad layer due to position variation of the rear journal, and meanwhile, the chromium plating repair clamp is used for very conveniently and quickly covering and protecting parts which need not to be repaired through chromium plating, so that protection workloads such as painting and lead sheath sticking are reduced, the working efficiency is improved, and the repair cycle is shortened.
Description
Technical field
The present invention relates to the chromium plating restorative procedure of a kind of aerial motor spare part in the course of processing after dimension overproof and fixture; relate to the chromium plating technology of local chromium plating protecting tool set-up structure and stainless steel components, particularly relate to a kind of rear shaft neck inner headed face chromium plating restorative procedure for aircraft engine and fixture.
Background technology
Rear shaft neck is the strength member ensureing aircraft engine safe and stable operation, Fig. 1 display be a kind of perspective view of rear shaft neck of aircraft engine, in order to meet the high strength of aviation field, light-weighted design requirements, rear shaft neck many employings stainless steel is made.Rear shaft neck shown in Fig. 1 is that a kind of shape and structure is complicated, the dish axial workpiece that wall thickness is thinner, its complete processing is complicated, often occurs the situation of dimension overproof in machining process, large and scrap that to process then loss due to spoiled work very large because repairing difficulty, and waste process period.
The dimension discrepancy of the method rebuild part of chromium plating reparation is taked to be a kind of common technology; but for repairing the inner circle size in the rear shaft neck mid-way shown in Fig. 1; because rear shaft neck inner headed face needs the inner headed face region of chromium plating to be positioned at mid-way; therefore for the part not having dimension overproof; such as need the inner headed face overlying regions and lower zone etc. of chromium plating, all need to protect.And the protected mode workload such as common japanning, subsides sheet lead is very large, owing to needing the region of protection much larger than the periphery needing chromium plating to repair, cause the chromium plating repairing efficiency of rear shaft neck to be extended considerably thus, efficiency is very low, and cost is very high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of rear shaft neck inner headed face chromium plating restorative procedure and fixture, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the present invention proposes a kind of rear shaft neck inner headed face chromium plating restorative procedure, described rear shaft neck is that bottom is little, top becomes large bell mouth shape structure gradually, and the middle part of described rear shaft neck has an inner headed face needing chromium plating to repair, and described inner headed face has the first diameter; Be close to described inner headed face and there is a bottom inner headed face being positioned at the top inner headed face above described inner headed face and being positioned at below described inner headed face; Described top inner headed face has the Second bobbin diameter being greater than described first diameter, and described bottom inner headed face has the 3rd diameter being less than described first diameter, and described restorative procedure comprises the steps: 1) described rear shaft neck heating is eliminated stress; 2) provide a fixture, described fixture comprises upper screen board that the plastics matched with described top inner headed face size make and the lower screen board that the plastics matched with described bottom inner headed face size are made; Described upper screen board has a central through hole passed for anode rod, and described central through hole is provided with multiple top plating fluid apertures flow through for electroplate liquid; Described lower screen board has one and withstands central blind hole bottom it for anode rod, and described central blind hole is provided with multiple bottom plating fluid apertures flow through for electroplate liquid; Described lower screen board is stuck on the inner headed face of described bottom, described upper screen board is stuck on the inner headed face of described top; 3) electrochemical deoiling carried out to described rear shaft neck and clean; 4) described rear shaft neck is put into chrome-plating bath together with described fixture; First carry out anodic corrosion, anodic corrosion electric current is 3A ~ 3.75A, and the anodic corrosion time is 15s ~ 30s; Then open punching electricity, rushing electric current is 6A ~ 18A, and the punching electricity time is 1min-3min; And then progressively electric current is down to working current 3A ~ 9A and starts chromium plating, chromium plating temperature is 50 DEG C ~ 60 DEG C, the chromium plating time: 4-6 hour; 5) dehydrogenation: plate dehydrogenation in latter 10 hours.
Preferably, in described step 1, heating the Heating temperature eliminated stress is 190 ± 10 DEG C, heat-up time >=3h.
Preferably, in described step 3, except oil temperature is 70 DEG C ~ 90 DEG C, the oil removing time is 5min ~ 30min.
Preferably, in described step 3, with flowing warm water and flowing cool water, described rear shaft neck is cleaned up respectively after oil removing; Wherein the temperature of flowing warm water is 40 DEG C ~ 70 DEG C, and the scavenging period of flowing warm water is 1min ~ 3min; The temperature of flowing cool water is room temperature, and the scavenging period of flowing cool water is 1min ~ 3min.
Preferably, in described step 3, after flowing cool water cleaning, the moisture film on described rear shaft neck surface keeps not breaking continuously 30s planted agent.
Preferably, in described step 5, dehydrogenation temperature is 190 DEG C ± 10 DEG C, dehydrogenation time >=3h.
Present invention also offers a kind of rear shaft neck inner headed face chromium plating and repair fixture, described rear shaft neck is that bottom is little, top becomes large bell mouth shape structure gradually, and the middle part of described rear shaft neck has an inner headed face needing chromium plating to repair, and described inner headed face has the first diameter; Be close to described inner headed face and there is a bottom inner headed face being positioned at the top inner headed face above described inner headed face and being positioned at below described inner headed face; Described top inner headed face has the Second bobbin diameter being greater than described first diameter, and described bottom inner headed face has the 3rd diameter being less than described first diameter; It is characterized in that, described fixture comprises upper screen board that the plastics matched with described top inner headed face size make and the lower screen board that the plastics matched with described bottom inner headed face size are made; Described upper screen board has a central through hole passed for anode rod, and described central through hole is provided with multiple top plating fluid apertures flow through for electroplate liquid; Described lower screen board has one and withstands central blind hole bottom it for anode rod, and described central blind hole is provided with multiple bottom plating fluid apertures flow through for electroplate liquid.
Preferably, the lower end cylindrical of described upper screen board arranges chamfering.
Preferably, the upper end cylindrical of described lower screen board arranges flange, and the outside diameter of described flange is greater than described 3rd diameter and is less than described first diameter.
In rear shaft neck inner headed face chromium plating restorative procedure of the present invention; provide a fixture; rear shaft neck can be firmly fixed by this fixture; rear shaft neck change in location is avoided to cause thickness of coating uneven; utilize fixture quickly and easily by the part covering protection without the need to chromium plating reparation simultaneously; decrease japanning, paste the protection workloads such as sheet lead, improve working efficiency, shorten repairing efficiency.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 display be a kind of perspective view of rear shaft neck of aircraft engine;
The perspective view of the different visual angles of the upper screen board of the fixture that what Fig. 2 a, 2b showed respectively is according to a specific embodiment of the present invention;
The perspective view of the different visual angles of the lower screen board of the fixture that what Fig. 3 a, 3b showed respectively is according to another specific embodiment of the present invention;
Fig. 4 display be the structural representation of fixture of the present invention when being installed in rear shaft neck.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.Wherein, identical parts adopt identical label.
Described in background technology part of the present invention, the invention provides a kind of rear shaft neck inner headed face chromium plating restorative procedure that can be used for the rear shaft neck 1 shown in Fig. 1.Specifically, Fig. 1 display be a kind of perspective view of rear shaft neck of aircraft engine, wherein, described rear shaft neck 1 is little in bottom, top becomes large bell mouth shape structure gradually, wherein, the part sectioned view of this rear shaft neck 1 is shown in Fig. 4, from Fig. 1 and Fig. 4, the middle part of rear shaft neck 1 has an inner headed face needing chromium plating to repair 11, and described inner headed face 11 has the first diameter; Be close to described inner headed face 11 and there is a bottom inner headed face 13 being positioned at the top inner headed face 12 above described inner headed face 11 and being positioned at below described inner headed face 11; Described top inner headed face 12 has the Second bobbin diameter being greater than described first diameter, and described bottom inner headed face 13 has the 3rd diameter being less than described first diameter, and in a specific embodiment, the dimensional requirement of described periphery 11 is Φ 79.9mm.
Visible; restorative procedure of the present invention needs to carry out chromium plating process to the inner circle size in rear shaft neck mid-way; in order to obtain good quality of coating; first need to be fixed process to rear shaft neck 1; rear shaft neck 1 change in location is avoided to cause thickness of coating uneven; also need to protect the part without the need to chromium plating reparation simultaneously, such as, all need to protect without the need to the top inner headed face 12 of chromium plating and bottom inner headed face 13.
For realizing above-mentioned target, below rear shaft neck inner headed face chromium plating restorative procedure of the present invention is described in detail step by step.
1) first, need to heat rear shaft neck 1 to eliminate grinding stress, to ensure binding force of cladding material, wherein, the Heating temperature eliminated stress is 190 ± 10 DEG C, heat-up time >=3h.
2) then need to provide a fixture 2, rear shaft neck 1 to be fixed, do not need the top inner headed face 12 of chromium plating and bottom inner headed face 13 to protect rear shaft neck 1 by fixture 2 simultaneously.
Wherein, fixture 2 comprises the upper screen board 22 (Fig. 2 a-2b) that the plastics matched with top inner headed face 12 size are made, the lower screen board 23 (Fig. 3 a-3b) that the plastics matched with bottom inner headed face 13 size are made.The structure of each several part of fixture 2 see Fig. 2-3, wherein, the perspective view of the different visual angles of the upper screen board of the fixture that what Fig. 2 a, 2b showed respectively is according to a specific embodiment of the present invention; The perspective view of the different visual angles of the lower screen board of the fixture that what Fig. 3 a, 3b showed respectively is according to another specific embodiment of the present invention.
See Fig. 2 a, 2b, upper screen board 22 has a central through hole 221 passed for anode rod 25 (Fig. 4), and central through hole 221 is provided with multiple top plating fluid apertures 222 flow through for electroplate liquid.See Fig. 3 a, 3b, lower screen board 23 has one and withstands central blind hole 231 bottom it for anode rod 25, and central blind hole 231 is provided with multiple bottom plating fluid apertures 232 flow through for electroplate liquid.
After providing fixture 2, be first stuck on bottom inner headed face 13 by the lower screen board 23 of fixture 2, then go up screen board 22 and be stuck on top inner headed face 12, wherein Fig. 4 display is the structural representation of fixture of the present invention when being installed in rear shaft neck.See Fig. 4, when sectional fixture 2, lower screen board 23 is filled in the position to bottom inner headed face 13 place by the central blind hole 231 that can withstand lower screen board 23 by anode rod 25, then make the central through hole 221 of screen board 22 wear on anode rod 25, make screen board 22 be slipped to the position at top inner headed face 13 place along anode rod 25.Central blind hole 231 1 aspect of lower screen board 23 can provide the structure making anode rod 25 withstand lower pressure screen board 23, anode rod 25 can be made to be located on the other hand, make anode rod 25 above central blind hole 231, only obtain electric field for electroplating, and central blind hole 231 lower end conductively-closed is lived, thus covering shielding measure without the need to taking the design of part below the lower screen board 23 be immersed in electroplate liquid in electroplating process, improve working efficiency.
Specifically, the step lower screen board 23 and upper screen board 22 being stuck in rear shaft neck 1 inside is realized by the size of lower screen board 23 and upper screen board 22.Such as, because the size of lower screen board 23 and bottom inner headed face 13 size match, thus make lower screen board 23 can fall in the regional extent of bottom inner headed face 13, and can arrange extra buckle structure makes lower screen board 23 can not slip down from bottom inner headed face 13, in a specific embodiment, flange 233 can be set at the upper end cylindrical of lower screen board 23, arrange and make the outside diameter of flange 233 be greater than the 3rd diameter and be less than the first diameter.
For another example, size and top inner headed face 12 size of upper screen board 22 match, thus make screen board 22 can fall in the regional extent of top inner headed face 12, and the Second bobbin diameter due to top inner headed face 12 is greater than the first diameter of the inner headed face 11 that will repair, therefore the diameter going up screen board 22 is also greater than the first diameter, thus can be blocked by upper screen board 22 by the hierarchic structure that formed between the first diameter and Second bobbin diameter and make it be unlikely the regional extent being slipped to inner headed face 11 from top inner headed face 12.Because the ladder of self-assembling formation between the first diameter and Second bobbin diameter provides the structure of upper screen board 22 location, therefore without the need to arranging flange similar on lower screen board 23.In a specific embodiment, described upper screen board 22 and lower screen board 23 select proportion to be greater than the plastics of electroplate liquid, float after avoiding fixture immersion plating liquid.In another specific embodiment, the lower end cylindrical of upper screen board 22 is provided with chamfering 223, for making upper screen board 22 and between above-mentioned first diameter and Second bobbin diameter, the ladder of self-assembling formation forms better laminating, to protect the top inner headed face 12 without the need to chromium plating.
3), after fixture 2 has been installed, electrochemical deoiling is carried out to the rear shaft neck 1 of having installed fixture 2.Hot alkaline solution such as can be utilized the saponification of grease and emulsifying effect, piece surface greasy dirt is removed.Specifically, the alkaline matter of sodium hydroxide, sodium carbonate and so on can be utilized to play saponification; Utilize the tensio-active agent of such as sodium phosphate, water glass and so on to play emulsifying effect and remove not saponifiable oil.
In a specific embodiment, electrochemical deoiling temperature is 70 DEG C ~ 90 DEG C, and the oil removing time is 5min ~ 30min; With flowing warm water and flowing cool water, rear shaft neck 1 is cleaned up respectively after oil removing; Wherein the temperature of flowing warm water is 40 DEG C ~ 70 DEG C, and the scavenging period of flowing warm water is 1min ~ 3min; The temperature of flowing cool water is room temperature, and the scavenging period of flowing cool water is 1min ~ 3min; After flowing cool water cleaning, the moisture film on described rear shaft neck 1 surface keeps not breaking continuously 30s planted agent.
4), after, rear shaft neck 1 is put into chrome-plating bath together with fixture 2; First carry out anodic corrosion, be connected with positive source by rear shaft neck 1 or fixture 2, the positive plate in coating bath is connected with power cathode, make part become anode, and positive plate becomes negative electrode.This step, by opening anti-electricity, plays piece surface activation, so that next step electroplating operations.
In a specific embodiment, anodic corrosion electric current is 3A ~ 3.75A, and the anodic corrosion time is 15s ~ 30s.
Then open punching electricity, rushing electric current is 6A ~ 18A, and the punching electricity time is 1min-3min.In this step, by the connection back switching of electrode after anodic corrosion terminates, be connected with power cathode by rear shaft neck 1 or fixture 2, the positive plate in coating bath is connected with positive source, carries out strike plating with big current.
Afterwards, more progressively electric current is down to working current 3A ~ 9A and starts normal chromium plating, the connection of electrode is oppositely identical with during strike plating, and chromium plating temperature is 50 DEG C ~ 60 DEG C, the chromium plating time: 4-6 hour.
In a specific embodiment, be of a size of Φ 80.075 ~ Φ 80.041mm before controlling to need the plating of the inner headed face 11 of chromium plating before chromium plating, the inner circle needed for being revised by polishing after plating is of a size of Φ 79.9mm.
5) be finally dehydrogenation: plate dehydrogenation in latter 10 hours, that removes piece surface in electroplating process oozes hydrogen, is realized by heating mode in temperature control dehydrogenation stove.Dehydrogenation temperature is 190 DEG C ± 10 DEG C, dehydrogenation time >=3h.
In rear shaft neck inner headed face chromium plating restorative procedure of the present invention; provide a fixture; rear shaft neck can be firmly fixed by this fixture; rear shaft neck change in location is avoided to cause thickness of coating uneven; utilize fixture quickly and easily by the part covering protection without the need to chromium plating reparation simultaneously; decrease japanning, paste the protection workloads such as sheet lead, improve working efficiency, shorten repairing efficiency.
Although it will be appreciated by those skilled in the art that the present invention is described according to the mode of multiple embodiment, not each embodiment only comprises an independently technical scheme.So describe in specification sheets be only used to clear for the purpose of; specification sheets should integrally be understood by those skilled in the art, and regards technical scheme involved in each embodiment as the mode that mutually can be combined into different embodiment to understand protection scope of the present invention.
The foregoing is only the schematic embodiment of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle, amendment and combination, all should belong to the scope of protection of the invention.
Claims (9)
1. a rear shaft neck inner headed face chromium plating restorative procedure, described rear shaft neck (1) is little in bottom, top becomes large bell mouth shape structure gradually, the middle part of described rear shaft neck (1) has an inner headed face needing chromium plating to repair (11), and described inner headed face (11) has the first diameter; Be close to described inner headed face (11) and there is a top inner headed face (12) being positioned at described inner headed face (11) top and the bottom inner headed face (13) be positioned at below described inner headed face (11); Described top inner headed face (12) has the Second bobbin diameter being greater than described first diameter, and described bottom inner headed face (13) has the 3rd diameter being less than described first diameter, and it is characterized in that, described restorative procedure comprises the steps:
1) described rear shaft neck (1) heating is eliminated stress;
2) provide a fixture (2), described fixture (2) comprises upper screen board (22) that the plastics matched with described top inner headed face (12) size make and the lower screen board (23) that the plastics matched with described bottom inner headed face (13) size are made; Described upper screen board (22) has a central through hole (221) passed for anode rod (25), and described central through hole (221) is provided with multiple top plating fluid apertures (222) flow through for electroplate liquid; Described lower screen board (23) has one and withstands central blind hole (231) bottom it for anode rod (25), and described central blind hole (231) is provided with multiple bottom plating fluid apertures (232) flow through for electroplate liquid; Described lower screen board (23) is stuck on described bottom inner headed face (13), described upper screen board (22) is stuck on described top inner headed face (12).
3) described rear shaft neck (1) is carried out electrochemical deoiling and cleaned;
4) described rear shaft neck (1) is put into chrome-plating bath together with described fixture (2); First carry out anodic corrosion, anodic corrosion electric current is 3A ~ 3.75A, and the anodic corrosion time is 15s ~ 30s; Then open punching electricity, rushing electric current is 6A ~ 18A, and the punching electricity time is about 1min-3min; And then progressively electric current is down to working current 3A ~ 9A and starts chromium plating, chromium plating temperature is 50 DEG C ~ 60 DEG C, the chromium plating time: 4-6 hour;
5) dehydrogenation: plate dehydrogenation in latter 10 hours.
2. the method for claim 1, is characterized in that, in described step 1, heating the Heating temperature eliminated stress is 190 ± 10 DEG C, heat-up time >=3h.
3. the method for claim 1, is characterized in that, in described step 3, except oil temperature is 70 DEG C ~ 90 DEG C, the oil removing time is 5min ~ 30min.
4. the method for claim 1, is characterized in that, in described step 3, uses flowing warm water and flowing cool water described rear shaft neck (1) to be cleaned up after oil removing respectively; Wherein the temperature of flowing warm water is 40 DEG C ~ 70 DEG C, and the scavenging period of flowing warm water is 1min ~ 3min; The temperature of flowing cool water is room temperature, and the scavenging period of flowing cool water is 1min ~ 3min.
5. method as claimed in claim 4, is characterized in that, in described step 3, after flowing cool water cleaning, the moisture film on described rear shaft neck (1) surface keeps not breaking continuously 30s planted agent.
6. the method for claim 1, is characterized in that, in described step 5, dehydrogenation temperature is 190 DEG C ± 10 DEG C, dehydrogenation time >=3h.
7. fixture is repaired in a rear shaft neck inner headed face chromium plating, described rear shaft neck (1) is little in bottom, top becomes large bell mouth shape structure gradually, the middle part of described rear shaft neck (1) has an inner headed face needing chromium plating to repair (11), and described inner headed face (11) has the first diameter; Be close to described inner headed face (11) and there is a top inner headed face (12) being positioned at described inner headed face (11) top and the bottom inner headed face (13) be positioned at below described inner headed face (11); Described top inner headed face (12) has the Second bobbin diameter being greater than described first diameter, and described bottom inner headed face (13) has the 3rd diameter being less than described first diameter; It is characterized in that, described fixture (2) comprises upper screen board (22) that the plastics matched with described top inner headed face (12) size make and the lower screen board (23) that the plastics matched with described bottom inner headed face (13) size are made; Described upper screen board (22) has a central through hole (221) passed for anode rod (25), and described central through hole (221) is provided with multiple top plating fluid apertures (222) flow through for electroplate liquid; Described lower screen board (23) has one and withstands central blind hole (231) bottom it for anode rod (25), and described central blind hole (231) is provided with multiple bottom plating fluid apertures (232) flow through for electroplate liquid.
8. fixture as claimed in claim 7, it is characterized in that, the lower end cylindrical of described upper screen board (22) arranges chamfering (223).
9. fixture as claimed in claim 7, it is characterized in that, the upper end cylindrical of described lower screen board (23) arranges flange (233), and the outside diameter of described flange (233) is greater than described 3rd diameter and is less than described first diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309981.2A CN104928736B (en) | 2015-06-08 | 2015-06-08 | Rear shaft neck inner headed face chromium plating restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309981.2A CN104928736B (en) | 2015-06-08 | 2015-06-08 | Rear shaft neck inner headed face chromium plating restorative procedure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104928736A true CN104928736A (en) | 2015-09-23 |
| CN104928736B CN104928736B (en) | 2017-11-28 |
Family
ID=54116153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510309981.2A Active CN104928736B (en) | 2015-06-08 | 2015-06-08 | Rear shaft neck inner headed face chromium plating restorative procedure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104928736B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435702A (en) * | 2016-12-12 | 2017-02-22 | 中航飞机起落架有限责任公司 | Part plane chroming device and method |
| CN107268056A (en) * | 2017-06-28 | 2017-10-20 | 中国航发南方工业有限公司 | The fixture and method of inlet casing part hard anodized |
| CN114875466A (en) * | 2022-06-07 | 2022-08-09 | 中国航发航空科技股份有限公司 | Size repairing tool clamp and repairing method for non-decomposable bearing part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054112A (en) * | 1998-08-10 | 2000-02-22 | Canon Inc | Masking method |
| CN201520810U (en) * | 2009-10-26 | 2010-07-07 | 成都飞机工业（集团）有限责任公司 | Deep hole electroplating tooling |
| CN104313671A (en) * | 2014-10-15 | 2015-01-28 | 陕西启源科技发展有限责任公司 | Method for radial eyelet hard chrome plating for mandrel |
-
2015
- 2015-06-08 CN CN201510309981.2A patent/CN104928736B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054112A (en) * | 1998-08-10 | 2000-02-22 | Canon Inc | Masking method |
| CN201520810U (en) * | 2009-10-26 | 2010-07-07 | 成都飞机工业（集团）有限责任公司 | Deep hole electroplating tooling |
| CN104313671A (en) * | 2014-10-15 | 2015-01-28 | 陕西启源科技发展有限责任公司 | Method for radial eyelet hard chrome plating for mandrel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435702A (en) * | 2016-12-12 | 2017-02-22 | 中航飞机起落架有限责任公司 | Part plane chroming device and method |
| CN106435702B (en) * | 2016-12-12 | 2018-11-02 | 中航飞机起落架有限责任公司 | Part plane chrome-plating device and method |
| CN107268056A (en) * | 2017-06-28 | 2017-10-20 | 中国航发南方工业有限公司 | The fixture and method of inlet casing part hard anodized |
| CN107268056B (en) * | 2017-06-28 | 2019-04-02 | 中国航发南方工业有限公司 | The fixture and method of inlet casing part hard anodized |
| CN114875466A (en) * | 2022-06-07 | 2022-08-09 | 中国航发航空科技股份有限公司 | Size repairing tool clamp and repairing method for non-decomposable bearing part |
| CN114875466B (en) * | 2022-06-07 | 2024-03-22 | 中国航发航空科技股份有限公司 | Size repair fixture and repair method for non-decomposable bearing part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104928736B (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104831325A (en) | Output shaft chrome plating method and output shaft chrome plating fixture | |
| CN104928736A (en) | Chromium plating repair method and clamp for inner circle surface of rear journal | |
| CN103122475B (en) | A kind of aluminium alloy electric chemical brightening solution and a kind of aluminium alloy electric chemically polishing method | |
| CN104862765B (en) | Carrier ring assemblies chrome-plating method | |
| CN105290589A (en) | Microbeam plasma welding repairing method for titanium alloy inlet casing support plate cracks | |
| CN104878432A (en) | Rear journal internal circle surface chromium plating repair method and clamp for aircraft engine | |
| CN201648540U (en) | Brushing electroplating repairing device of thin-wall aluminum products | |
| CN105826823A (en) | Electric cabinet wear resistance anti-corrosion repair method | |
| CN113235142A (en) | Method for plating chromium on outer surface of undercarriage and chromium plating tool | |
| CN105578729A (en) | One-piece aluminum reinforcing flexible circuit board and technology | |
| CN110846697B (en) | Method for repairing nickel-plated layer of metal plated part | |
| KR890007202Y1 (en) | Insoluble lead or lead alloy electrode | |
| CN105755511B (en) | Water lubriucated bearing boss surfaces processing method | |
| CN104878431A (en) | Outer circumferential surface chromium plating restoration method of back shaft neck thin-wall flange and clamp | |
| CN104028716A (en) | Method for using Ni-Co-W alloy electroplate liquid to repair nickel-plated combined crystallizer narrow plate in electroplating manner | |
| CN109296463B (en) | Method for preventing aluminum content of engine lubricating oil system from exceeding standard | |
| CN208643552U (en) | Rinsing plate is used in a kind of flushing of fluid pressure line | |
| CN104233413A (en) | Brush plating technology for restoring rolling-mill gear shaft by using pulse electric brush plating | |
| CN108517542B (en) | Repairing tool, repairing device and repairing method for round billet crystallizer | |
| KR100843952B1 (en) | Apparatus for electroforming inside of tube having integrated air and electroforming solution supplying device | |
| CN108823611B (en) | Repair tool, repair device and repair method for square billet crystallizer | |
| CN216880647U (en) | Welding rod coating removing device | |
| CN114875466B (en) | Size repair fixture and repair method for non-decomposable bearing part | |
| CN110129844A (en) | A kind of method of well head or well control device gasket annular groove plating nano ceramics electro-deposition protective layer | |
| CN205336054U (en) | Motor stator's assembly structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |