CN205117373U - Mining hydraulic prop's compound plating layer structure of hard chrome plating - Google Patents
Mining hydraulic prop's compound plating layer structure of hard chrome plating Download PDFInfo
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- CN205117373U CN205117373U CN201520829619.3U CN201520829619U CN205117373U CN 205117373 U CN205117373 U CN 205117373U CN 201520829619 U CN201520829619 U CN 201520829619U CN 205117373 U CN205117373 U CN 205117373U
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Abstract
The utility model relates to a metal plating field specifically discloses a mining hydraulic prop's compound plating layer structure of hard chrome plating. The utility model discloses a mining hydraulic prop's compound plating layer structure of hard chrome plating, include the iron and steel base member and plate plating layer on the iron and steel matrix surface, preplating nickel dam, copper plate, zero porosity chromium -plated layer, milky white chrome plating, the hard chromium of plating layer for electroplating in proper order on the iron and steel matrix surface. The utility model discloses a mining hydraulic prop's compound plating layer structure of hard chrome plating has solved the poor problem of present mining hydraulic prop corrosion resistance, satisfies the technical requirement of mining hydraulic prop corrosion resistance and wearability, and can obviously improve hydraulic prop's life.
Description
Technical field
The utility model relates to metal plating field, is specifically related to a kind of hard chrome plating composite plating layer structure of hydraulic prop for mine.
Background technology
The hydraulic prop that mine uses requires to have high corrosion-resistant and high-wearing feature, general use Cr VI hard chrome plating coating structure or galvanizing phosphorization apply the coating structure of abrasion resistant coatings again, hard chrome plating coating structure excellent in abrasion resistance, but corrosion resistance is not high enough, it is better that galvanizing phosphorization adds coating structure corrosion resistance, but hardness is low, after coating surface is scratched, coating and steel substrate will soon be corroded.Hard chrome plating coating structure is copper facing and hard chrome plating successively on steel substrate generally, because hard chromium hole is more, adopts this coating structure easily pitting corrosion to occur.Erosion is through the hole corrosion copper plate of chromium coating, and after copper plate is corroded, namely steel substrate is corroded, and coating surface produces the red corrosion product of point-like.In this process, chromium coating itself is not corroded.Traditional Cr VI chromium coating hardness is high, easily produce hole and crackle, the general imporosity of trivalent chromium coating of promoting the use of at present and crackle, but this coating can not plate thick, and hardness is lower.
Utility model content
In view of this, be necessary for above-mentioned problem, a kind of hard chrome plating composite plating layer structure of hydraulic prop for mine is provided.
For achieving the above object, the utility model adopts following technical scheme:
The hard chrome plating composite plating layer structure of hydraulic prop for mine of the present utility model, comprises steel substrate and is plated in steel substrate electrodeposited coating on the surface; Described electrodeposited coating is pre-nickel plating, copper plate, imporosity chromium coating, milky white chrome plating, the hard chromium electroplated successively on the surface at steel substrate.
Preferably, described pre-nickel plating thickness is 0.5 ~ 1 μm.
Preferably, described thickness of coated copper layer is 10 ~ 20 μm.
Preferably, described imporosity chromium coating thickness is 0.5 ~ 1 μm.
Preferably, described milky white chrome plating thickness is 8 ~ 12 μm.
Preferably, described hard chromium thickness is 20 ~ 40 μm.
The beneficial effects of the utility model are:
The hard chrome plating composite plating layer structure of the hydraulic prop for mine of the utility model design, the imporous feature of trivalent chromium coating is adopted to make up the defect of Cr VI coating, solve the problem of current hydraulic prop for mine corrosion resistance difference, hard chrome plating composite plating layer structure of the present utility model, compared with former hard chrome plating coating structure, can significantly improve the application life of hydraulic prop.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the hard chrome plating composite plating layer structure of hydraulic prop for mine of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail, the utility model embodiment and illustrating for explaining the utility model, but not as to restriction of the present utility model.
Embodiment 1:
As shown in Figure 1, the hard chrome plating composite plating layer structure of hydraulic prop for mine of the present utility model, is included in pre-nickel plating 2, copper plate 3, imporosity chromium coating 4, milky white chrome plating 5 and hard chromium 6 that steel substrate 1 is successively electroplated successively.
Described pre-nickel plating 2 adopts Watt Ni deposition technique to prepare, and thickness of coating is 0.5 ~ 1 μm.
Described copper plate 3 adopts traditional sour copper electroplating technology preparation, and thickness of coating is 13 ~ 18 μm.
Described imporosity chromium coating 4 adopts the Trich-6561 chloride trivalent chromium chrome plating technique of Guangzhou Chao Bang Chemical Co., Ltd. to prepare, and thickness of coating is 0.5 ~ 1 μm.
Described milky white chrome plating 5 adopts traditional Cr VI to plate the preparation of milky white chromium process, and thickness of coating is 8 ~ 12 μm.
Described hard chromium 6 adopts traditional Cr VI Hard Chromium Plating Technology preparation, and thickness of coating is 25 ~ 35 μm.
The concrete electroplating operations process of the present embodiment comprises:
Step 1, pre-treatment: operation process steel substrate 1 component being passed through successively to " electrochemical deoiling → washing → catholyte oil removing → washing → anode electrolysis oil removing → washing → 20% sulfuric acid activated → washing ".
Step 2, pre-nickel plating 2: steel substrate 1 component through pre-treatment enter a watt nickel coating bath plating, obtain pre-nickel plating 2, after washing, enter next procedure.
Step 3, copper plate 3: plating piece, after step 2 processes, enters the copper facing of sour copper coating bath, obtain copper plate 3, then passes through the operation process of " the sulfuric acid membrane removal → washing of washing → 10% " successively.
Step 4, imporosity chromium coating 4: plating piece, after step 3 processes, enters after chloride trivalent chromium chrome plating groove prepares imporosity chromium coating 4, after washing, enters next procedure.
Step 5, milky white chrome plating 5: plating piece, after trivalent chromium chrome plating, carries out milky white chromium chrome-plating bath and prepares milky white chrome plating 5, enter next procedure after washing.
Step 6, hard chromium 6: plating piece enters hard-chrome plating chromium groove after milky white chromium chromium plating, first with the activation of small area analysis reversing the current, then prepare hard chromium 6 with forward current plating, washing post-drying.
In above-described embodiment, adopt watt nickel coating to make pre-plating layer, the harm using cyanide electroplating to bring to operating personnel and environment can be avoided.Adopt the stronger copper plate of inertia to make intervening guard layer, effectively can intercept the corrosion of erosion to steel substrate.Compared with former hydraulic prop for mine coating structure, the utility model adds imporosity chromium coating between copper plate and Cr VI chromium coating, this coating structure the etching time grown very much will be needed, so effectively can intercept erosion by Cr VI chromium coating hole to the corrosion of copper plate because erosion penetrates this layer of imporosity chromium coating.Imporosity coating plates milky white chromium, and then hard chrome plating, be because the porosity of milky white chrome plating is more much lower than hard chromium, obviously can reduce the chance that plating piece is corroded.Different from Cr VI Cr-plating Bath, trivalent chromium chrome plating solution does not have oxidisability, and after plating piece goes out groove, trivalent chromium chrome plating layer does not generate passivating film, so, trivalent chromium coating directly can carry out Cr VI chromium plating without reversing the current activation.
The hard chrome plating composite plating layer structure of the hydraulic prop for mine of the utility model design, compared with the hard chrome plating coating structure of former hydraulic prop for mine, cost is suitable, but can increase substantially the decay resistance of coating, can meet the technical requirements of hydraulic prop for mine corrosion resistance and abrasion resistance simultaneously.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. a hard chrome plating composite plating layer structure for hydraulic prop for mine, is characterized in that, comprises steel substrate and is plated in steel substrate electrodeposited coating on the surface; Described electrodeposited coating is pre-nickel plating, copper plate, imporosity chromium coating, milky white chrome plating, the hard chromium electroplated successively on the surface at steel substrate.
2. the hard chrome plating composite plating layer structure of hydraulic prop for mine according to claim 1, is characterized in that, described pre-nickel plating thickness is 0.5 ~ 1 μm.
3. the hard chrome plating composite plating layer structure of hydraulic prop for mine according to claim 1, is characterized in that, described thickness of coated copper layer is 10 ~ 20 μm.
4. the hard chrome plating composite plating layer structure of hydraulic prop for mine according to claim 1, is characterized in that, described imporosity chromium coating thickness is 0.5 ~ 1 μm.
5. the hard chrome plating composite plating layer structure of hydraulic prop for mine according to claim 1, is characterized in that, described milky white chrome plating thickness is 8 ~ 12 μm.
6. the hard chrome plating composite plating layer structure of hydraulic prop for mine according to claim 1, is characterized in that, described hard chromium thickness is 20 ~ 40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829619.3U CN205117373U (en) | 2015-10-21 | 2015-10-21 | Mining hydraulic prop's compound plating layer structure of hard chrome plating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829619.3U CN205117373U (en) | 2015-10-21 | 2015-10-21 | Mining hydraulic prop's compound plating layer structure of hard chrome plating |
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| CN205117373U true CN205117373U (en) | 2016-03-30 |
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| CN201520829619.3U Active CN205117373U (en) | 2015-10-21 | 2015-10-21 | Mining hydraulic prop's compound plating layer structure of hard chrome plating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287078A (en) * | 2018-11-20 | 2019-01-29 | 美智光电科技有限公司 | Manufacturing method, iron substrate circuit board and the light source assembly of iron substrate circuit board |
| CN111424299A (en) * | 2020-03-11 | 2020-07-17 | 宣城托新精密科技有限公司 | Automobile interior chrome plating ultraviolet coloring method |
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2015
- 2015-10-21 CN CN201520829619.3U patent/CN205117373U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287078A (en) * | 2018-11-20 | 2019-01-29 | 美智光电科技有限公司 | Manufacturing method, iron substrate circuit board and the light source assembly of iron substrate circuit board |
| CN109287078B (en) * | 2018-11-20 | 2021-06-04 | 美智光电科技股份有限公司 | Manufacturing method of iron substrate circuit board, iron substrate circuit board and light source assembly |
| CN111424299A (en) * | 2020-03-11 | 2020-07-17 | 宣城托新精密科技有限公司 | Automobile interior chrome plating ultraviolet coloring method |
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