CN202391841U - Anti-corrosion wear-resistant valve block - Google Patents
Anti-corrosion wear-resistant valve block Download PDFInfo
- Publication number
- CN202391841U CN202391841U CN2011205016065U CN201120501606U CN202391841U CN 202391841 U CN202391841 U CN 202391841U CN 2011205016065 U CN2011205016065 U CN 2011205016065U CN 201120501606 U CN201120501606 U CN 201120501606U CN 202391841 U CN202391841 U CN 202391841U
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- Prior art keywords
- valve block
- corrosion
- tungsten alloy
- alloy coating
- resistant
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- 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.)
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Abstract
The utility model relates to an anti-corrosion wear-resistant valve block. The anti-corrosion wear-resistant valve block comprises a valve block main body, wherein the outer surface of the valve block main body is galvanized with one or multiple nickel-tungsten-phosphorus layers or nickel-iron-tungsten alloy coatings. The anti-corrosion wear-resistant valve block is corrosion-resistant and wear-resistant and can replace the valve block of which the surface is subjected to chrome plating and chemical nickel plating, and the service life of the valve block can be greatly prolonged.
Description
Technical field
The utility model relates to a kind of valve piece, particularly a kind of corrosion-proof wear valve piece.
Background technique
The critical role of hydraulic valve block in hydraulic system is familiar with by more people. and its application area is more and more widely.The use of hydraulic valve block can not only be simplified Design of Hydraulic System and installation. and be convenient to realize the integrated and standardization of hydraulic system help reducing manufacture cost, improve precision and reliability.Along with the continuous development of hydraulics, application of hydraulic system more and more widely, simultaneously also to having proposed requirements at the higher level in working life of the reliability of hydraulic system and element.
Facts have proved that corrosion and wearing and tearing are to cause valve piece damaged surfaces, the main cause that reduces working life.Therefore, the valve piece anticorrosion, resistance to wear to receive widely and pay attention to.The at present main anticorrosion means that adopt mainly contain chrome-faced, chemical nickel plating, zinc-plated etc.Chromium plating is forbidden by countries in the world owing to the serious environmental pollution or is limited; Chrome plating is anti-chlorine ion corrosion property not, can not be used for coastal near.Galvanizing surface hardness is low, easy to wear in assembling and the using process, scratch, and then cause the corrosion of workpiece surface.The chemical nickel-plating plating solution poor stability, quality of coating is unstable, and corrosion resisting property differs greatly, and simultaneously, coating is prone to come off in the oil circuit, causes oil circuit to stop up and equipment failure.
The model utility content
The purpose of the utility model is to overcome the deficiency of existing technology and the corrosion-proof wear valve piece that a kind of corrosion-proof wear is provided, prolongs the working life of valve piece greatly.
The purpose of the utility model is through being electroplate with one deck nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating at least at said valve block body outer surface.
In the utility model, the thickness of tungsten alloy coating is 20 ~ 50 μ m.
In the utility model, the thickness of said nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating is 30 μ m.
Adopt such scheme, the advantage of the utility model to be, valve piece electroplating surface nickel tungsten phosphorus or ferronickel tungsten alloy coating, make that the corrosion resistance of valve piece under environment such as alkalescence, acidity, chloride, carbon dioxide, sulphide is good; And because tungsten alloy coating plated state hardness is 500 ~ 600Hv, and can reach more than the 900Hv through the hardness after the Overheating Treatment, make that valve piece wear resistance and hard chromium plating are suitable, be much better than chemical nickel phosphorus plating.
Wherein valve piece (manifold block) comprises hydraulic valve block, hydraulic circuit piece, hydraulic manifold block of all size, model etc.
It is low to have energy consumption in the technology of valve block body electroplating surface tungsten alloy in addition, and utilization of materials is high, and the characteristics that corrosivity is little have tangible environmental protection and power savings advantages, can replace chrome-faced of valve piece and chemical nickel plating, prolong the working life of valve piece greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, specify the embodiment of the utility model.
To shown in Figure 2, comprise valve block body 1 like Fig. 1, said valve block body 1 outer surface is electroplate with one deck tungsten alloy coating 2.Said tungsten alloy coating 2 is nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating.The thickness of said nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating is 30 μ m.
The nickel tungsten phosphorus tungsten alloy coating or the ferronickel tungsten alloy coating of the utility model electroplating surface are amorphous or nanocrystalline structure; Coating even compact, light property are good, good with the combination force of matrix; The coating porosity ratio is low, and the corrosion resistance under environment such as alkalescence, acidity, chloride, carbon dioxide, sulphide is good.Tungsten alloy coating plated state hardness is 500 ~ 600Hv, can reach more than the 900Hv through the hardness after the Overheating Treatment, and wear resistance and hard chromium plating are suitable, are much better than chemical nickel phosphorus plating.
The electroplating technology flow process of the utility model is: oil removing in advance, and---------------------------tungsten alloy plating---clear water cleaning---dries up electrochemical activation Hot Wash electrochemical degreasing in the clear water cleaning in the clear water cleaning in the clear water cleaning in rust cleaning in the clear water cleaning.The apparent light of gained coating, salt spray test 96h is more than 9 grades.Installation back using effect is good.
Claims (3)
1. corrosion-proof wear valve piece, it is characterized in that: said valve block body outer surface is electroplate with one deck nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating at least.
2. corrosion-proof wear valve piece according to claim 1 is characterized in that: the thickness of tungsten alloy coating is 20 ~ 50 μ m.
3. corrosion-proof wear valve piece according to claim 2 is characterized in that: the thickness of said nickel tungsten phosphorus tungsten alloy coating or ferronickel tungsten alloy coating is 30 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205016065U CN202391841U (en) | 2011-12-06 | 2011-12-06 | Anti-corrosion wear-resistant valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205016065U CN202391841U (en) | 2011-12-06 | 2011-12-06 | Anti-corrosion wear-resistant valve block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391841U true CN202391841U (en) | 2012-08-22 |
Family
ID=46666770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205016065U Expired - Lifetime CN202391841U (en) | 2011-12-06 | 2011-12-06 | Anti-corrosion wear-resistant valve block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146964A (en) * | 2017-07-01 | 2017-09-08 | 东莞普瑞得五金塑胶制品有限公司 | A kind of galvanization coating and terminal, electrical interface, electronic equipment for terminal |
-
2011
- 2011-12-06 CN CN2011205016065U patent/CN202391841U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146964A (en) * | 2017-07-01 | 2017-09-08 | 东莞普瑞得五金塑胶制品有限公司 | A kind of galvanization coating and terminal, electrical interface, electronic equipment for terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |