CN203269800U - Tungsten carbide structure plated with cobalt on surface and preparation system of tungsten carbide structure - Google Patents
Tungsten carbide structure plated with cobalt on surface and preparation system of tungsten carbide structure Download PDFInfo
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- CN203269800U CN203269800U CN 201320287123 CN201320287123U CN203269800U CN 203269800 U CN203269800 U CN 203269800U CN 201320287123 CN201320287123 CN 201320287123 CN 201320287123 U CN201320287123 U CN 201320287123U CN 203269800 U CN203269800 U CN 203269800U
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- Prior art keywords
- cobalt
- tungsten carbide
- wolfram varbide
- coated
- plated
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Abstract
The utility model discloses a tungsten carbide structure plated with cobalt on the surface and a preparation system of the tungsten carbide structure. The tungsten carbide structure plated with the cobalt on the surface comprises a tungsten carbide body, wherein the surface of the tungsten carbide body is plated with at least one cobalt wrapping layer; the thickness of the cobalt wrapping layer is less than 1 micrometer; the cobalt wrapping layer is uniformly wrapped on the surface of the tungsten carbide body in a sealing manner. The preparation system of the tungsten carbide structure plated with the cobalt on the surface comprises a water tank, a reaction container, a stirrer and an ultrasonic generator, wherein the reaction container is arranged in the water tank, the stirrer is arranged in the reaction container, and the ultrasonic generator is arranged in the reaction container. The tungsten carbide structure plated with the cobalt on the surface has the advantage that the surface of the tungsten carbide body is plated with the metal cobalt. Compared with a mechanical mixing method, a method for coating the surface of the tungsten carbide with the cobalt can be used for simultaneously improving the hardness and the toughness of a hard alloy. Meanwhile, the preparation system of the tungsten carbide structure plated with the cobalt on the surface is convenient to use and low in cost and has a good effect.
Description
Technical field
The utility model relates to a kind of wolfram varbide and preparation system thereof, is specifically related to wolfram varbide structure and preparation system thereof that a kind of surface is coated with cobalt.
Background technology
Ball milling is mechanical dispersion, can not guarantee definitely evenly, and other mixes although the dissolving gel method is molecular level, can not guarantee the even coating of WC.What research and comparison was many at present is exactly the coating of powder, is mainly to use electroless plating.
Electroless plating method can prepare equally distributed composite granule under Uniform Dispersion, tiny metallic cover type ceramic powder, particularly low-metal content.Adopt this composite granule to prepare ceramic-metal composite, can improve the wetting property of Metal-ceramic interface, improve the bonding strength of metal and pottery.Maximum difficulty is exactly " homogeneity of coating ".The metal carbonyl coat homogeneity comprises three aspects: (l) whether have independent metallographic phase in the powder, whether (2) exist the ceramic powder without metal carbonyl coat, and whether (3) metal is complete in the coating on ceramic powder surface.About the homogeneity question of powder chemistry plating, research is few.Its reason is: the powder enormous amount is difficult to characterize with the result of several particles the coating situation of whole powder; The size distribution of powder own is inhomogeneous, and acquisition and the analysis of result caused difficulty.
The utility model content
The utility model has overcome the deficiencies in the prior art, the wolfram varbide structure and the preparation system thereof that provide a kind of surface to be coated with cobalt, and inadequate to wolfram varbide hardness in prior art to be solved, toughness is not strong, produces the problems such as quality product is low.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of surface is coated with the wolfram varbide structure of cobalt, comprises the wolfram varbide body; Described wolfram varbide body surface is coated with one deck cobalt integument at least; The thickness of described cobalt integument is less than 1 micron; Described cobalt integument evenly is wrapped in the wolfram varbide body surface; Described cobalt integument sealed envelope is at described wolfram varbide body surface.
Further technical scheme is that the cobalt integument is to be wrapped in described wolfram varbide body surface by the electroless plating mode.
Further technical scheme is a kind of system that the surface is coated with the wolfram varbide structure of cobalt for preparing, comprise tank, the wolfram varbide structural system that described preparation surface is coated with cobalt also comprises reaction vessel, agitator, ultrasonic generator, described reaction vessel are arranged in described tank; Described agitator is arranged in described reaction vessel; Described ultrasonic generator is arranged in reaction vessel.
Further technical scheme is that tank is the recirculated water tank.
Compared with prior art, the beneficial effects of the utility model are: the wolfram carbine composite powder that is coated with the cobalt integument that the utility model adopts a kind of novel chemistry to coat, improve the problem of " the coating integrity " that exist in the coating method.At wolfram varbide body surface clad metal cobalt, tungsten carbide surface clad metal cobalt can improve hardness and the toughness of Wimet simultaneously with respect to the mechanically mixing method.It is easy to use, effective that preparation surface is coated with the wolfram varbide structural system of cobalt simultaneously, and cost is low.
Description of drawings
Fig. 1 is the structural representation that one of the utility model embodiment surface is coated with the wolfram varbide structure of cobalt.
Fig. 2 is the structural representation that another embodiment of the utility model prepares the system of the wolfram varbide structure that the surface is coated with cobalt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1, Fig. 1 shows the structural representation that one of the utility model embodiment surface is coated with the wolfram varbide structure of cobalt.The present embodiment surface is coated with the wolfram varbide structure of cobalt, comprises wolfram varbide body 11; The wolfram varbide body surface is coated with one deck cobalt integument 12 at least; As preferred embodiment, in the present embodiment, the thickness of cobalt integument is less than 1 micron; Can be 0.1 micron etc., specific embodiment be that in the present embodiment, the thickness of cobalt integument is 0.1 micron.As preferred embodiment, in the present embodiment, the cobalt integument evenly is wrapped in the wolfram varbide body surface; Cobalt integument sealed envelope is at described wolfram varbide body surface simultaneously.
As shown in Figure 2, Fig. 2 shows another embodiment of the utility model and prepares the structural representation that the surface is coated with the wolfram varbide structural system of cobalt.The present embodiment preparation surface is coated with the wolfram varbide structural system of cobalt, comprises tank 21, and the surperficial wolfram varbide structural system that is coated with cobalt of the present embodiment preparation also comprises reaction vessel 22, agitator 23, and ultrasonic generator 24, reaction vessel 22 are arranged in tank 21; Agitator 23 is arranged in reaction vessel 22; Ultrasonic generator 24 is arranged in reaction vessel 22; As preferred embodiment, be provided with in the present embodiment for the support 25 that supports agitator, agitator 23 is movably connected on support, can facilitate the operation of agitator.As preferred embodiment, in the present embodiment, tank is the recirculated water tank.Because applying in process, ultrasonic wave can generate heat, make the water in tank heat up, for temperature of reaction is controlled within limits, the palpus circulating water, excess Temperature (more than 90 ℃) can cause damage to ultrasonic generator, and can reduce bath stability, self-decomposition occurs, produce free metal simple-substance.Before plating, the magneton stirring of pretreated wolfram varbide being carried out 10 minutes is pre-dispersed, plays the auxiliary ultrasonic wave dissemination that strengthens.The compound carbonizing tungsten that electroless plating obtains is deposited on container bottom, must after cleaning, drying, just can carry out subsequent disposal.After electroless plating is completed, in the suspension of cobalt plating wolfram varbide body, add the rare-earth salts of solubility, the massfraction of rare earth is 0.5% slowly to add ammoniacal liquor in uniform stirring, makes the rare-earth salts hydrolysis, at cobalt plating wolfram varbide body surface with Re (OH)
3Precipitation forms coating layer.
Electroless plating is in metastable solution system, utilizes reductive agent (N
2H
4H
2O) with the positively charged ion (Co in main salt
2+) be reduced to the simple substance form and deposit to the process of the matrix surface with catalytic activity.As reductive agent (N
2H
4H
2When O) oxidized on catalytically active surface, can produce free electron, these free electrons can be in the catalytic surface reducing solution metal ion, just can constantly deposit metal plating as long as the metal level that deposits has catalytic activity for reductive agent, namely the electroless cobalt plating process is the process of an autocatalysis.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification sheets.Furthermore, when describing a specific features, structure or characteristics in conjunction with any embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also drop in scope of the present utility model.
Although a plurality of explanatory embodiment with reference to utility model is described the utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (4)
1. a surface is coated with the wolfram varbide structure of cobalt, comprises the wolfram varbide body; It is characterized in that: described wolfram varbide body surface is coated with one deck cobalt integument at least; The thickness of described cobalt integument is less than 1 micron; Described cobalt integument evenly is wrapped in the wolfram varbide body surface; Described cobalt integument sealed envelope is at described wolfram varbide body surface.
2. surface according to claim 1 is coated with the wolfram varbide structure of cobalt, it is characterized in that described cobalt integument is to be wrapped in described wolfram varbide body surface by the electroless plating mode.
3. one kind prepares the system that the surface is coated with the wolfram varbide structure of cobalt, comprise tank, it is characterized in that: the surperficial wolfram varbide structural system that is coated with cobalt of described preparation also comprises reaction vessel, agitator, ultrasonic generator, described reaction vessel are arranged in described tank; Described agitator is arranged in described reaction vessel; Described ultrasonic generator is arranged in reaction vessel.
4. preparation surface according to claim 3 is coated with the system of the wolfram varbide structure of cobalt, it is characterized in that described tank is the recirculated water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287123 CN203269800U (en) | 2013-05-23 | 2013-05-23 | Tungsten carbide structure plated with cobalt on surface and preparation system of tungsten carbide structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287123 CN203269800U (en) | 2013-05-23 | 2013-05-23 | Tungsten carbide structure plated with cobalt on surface and preparation system of tungsten carbide structure |
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|---|---|
| CN203269800U true CN203269800U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320287123 Expired - Lifetime CN203269800U (en) | 2013-05-23 | 2013-05-23 | Tungsten carbide structure plated with cobalt on surface and preparation system of tungsten carbide structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920875A (en) * | 2014-04-30 | 2014-07-16 | 台州学院 | Preparation method of WC-rare earth-Co layer-by-layer coating hard alloy composite powder |
| CN104232967A (en) * | 2014-10-10 | 2014-12-24 | 台州学院 | Method for preparing low binder phase wolfram carbide hard alloy |
-
2013
- 2013-05-23 CN CN 201320287123 patent/CN203269800U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920875A (en) * | 2014-04-30 | 2014-07-16 | 台州学院 | Preparation method of WC-rare earth-Co layer-by-layer coating hard alloy composite powder |
| CN104232967A (en) * | 2014-10-10 | 2014-12-24 | 台州学院 | Method for preparing low binder phase wolfram carbide hard alloy |
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| 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: 20131106 |