CN203890427U - Graphite source electrode for glow non-hydrogen carburization - Google Patents
Graphite source electrode for glow non-hydrogen carburization Download PDFInfo
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- CN203890427U CN203890427U CN201420176391.8U CN201420176391U CN203890427U CN 203890427 U CN203890427 U CN 203890427U CN 201420176391 U CN201420176391 U CN 201420176391U CN 203890427 U CN203890427 U CN 203890427U
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- graphite
- cover body
- source electrode
- carburization
- hydrogen
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Abstract
The utility model discloses a graphite source electrode for glow non-hydrogen carburization. The graphite source electrode comprises an external graphite cover body and an internal graphite cover body which are connected in parallel, wherein the whole internal and external graphite cover body is cuboidal; temperature-measuring air vents are formed in the same sides of the internal and external graphite cover bodies; acicular graphite source electrodes are uniformly distributed in the internal graphite cover body up and down; a graphite fixture is arranged in the internal graphite cover body and used for horizontally suspending a workpiece among the acicular graphite source electrodes uniformly distributed up and down; a metal cover body is arranged outside the external graphite cover body; another temperature-measuring air vent is formed in one side of the metal cover body. When the graphite source electrode is used for carrying out glow non-hydrogen carburization treatment on the pure titanium workpiece, the sputtering rate of carbon is increased by more than 26 times, a carburized layer is uniform and dense, the carburization time is effectively shortened and the carburization temperature is effectively decreased. Thus, the carburization efficiency is improved.
Description
Technical field
The utility model relates to non-hydrogen carbonizing technical field, relates in particular to a kind of graphite source electrode for aura non-hydrogen carbonizing.
Background technology
At present, in glow ion non-hydrogen carbonizing technique, except the processing parameters such as treatment temp and time, the structure of graphite source electrode and form and the workpiece placement position in source electrode also produces considerable influence to the effect of carburizing.That conventional glow-discharge electrode structure has is plate, cave type and deep-well type, though all utilize Hollow cathode discharge phenomenon, the sputtering yield of carbon is limited, and workpiece carbon concentration is around not high, and carburizing efficiency is not high.
The modes of emplacement of workpiece has flatwise and suspension type, but for aura non-hydrogen carbonizing, is difficult to make workpiece to obtain comprehensive, uniform cementation zone.
Utility model content
The purpose of this utility model is to provide a kind of graphite source electrode for aura non-hydrogen carbonizing, apply this graphite source electrode pure titanium workpiece is carried out to the processing of aura non-hydrogen carbonizing, can improve the sputtering raste of carbon more than 26 times, and cementation zone is even, fine and close, effectively shorten carburizing time and reduce carburizing temperature, improving carburizing efficiency.
For a graphite source electrode for aura non-hydrogen carbonizing, described graphite source electrode comprises outside graphite cover body and the inner graphite cover body of placing in parallel, wherein:
The integral body of inside and outside graphite cover body is cube, and inside and outside graphite cover body all has thermometric ventilating pit in the same side;
Described inner graphite cover body be evenly distributed with up and down needle-like graphite source electrode, and be provided with graphite jig in this inside graphite cover body;
Described graphite jig is suspended in described workpiece level between upper and lower equally distributed needle-like graphite source electrode;
The outside of described outside graphite cover body is metal cover body, and is provided with another thermometric ventilating pit in a side of this metal cover body.
The described outside graphite cover body of placing in parallel and the gap between inner graphite cover body are 10～20 millimeters.
Distance between the workpiece that described upper and lower equally distributed needle-like graphite source electrode and level suspend is 8～15 millimeters.
The technical scheme being provided by above-mentioned the utility model can be found out, apply this graphite source electrode pure titanium workpiece is carried out to the processing of aura non-hydrogen carbonizing, can improve the sputtering raste of carbon more than 26 times, and cementation zone is even, fine and close, effectively shorten carburizing time and reduce carburizing temperature, improving carburizing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is for the graphitic source electrode structure schematic diagram of aura non-hydrogen carbonizing described in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to protection domain of the present utility model.
Because the sputter productive rate of carbon is extremely low, for aura non-hydrogen carbonizing technique,, overlong time too high for fear of the treatment temp to workpiece, and cause matrix thick, mechanical properties decrease, the problem such as workpiece deformation is large, simultaneously in order to make carbon obtain high sputtering energy, increase workpiece carbon density around, and make that workpiece obtains comprehensively, even thicker cementation zone, structure formation that must optimization design graphite source electrode and the placement position of workpiece.The utility model embodiment provides a kind of graphite source electrode for aura non-hydrogen carbonizing, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail, be illustrated in figure 1 described in the utility model embodiment the graphitic source electrode structure schematic diagram for aura non-hydrogen carbonizing, described graphite source electrode comprises outside graphite cover body 1 and the inner graphite cover body 2 of placing in parallel, wherein:
The integral body of this inside and outside graphite cover body is cube, and inside and outside graphite cover body all has thermometric ventilating pit in the same side, and as shown in Figure 1, a side of outside graphite cover body 1 is provided with thermometric ventilating pit 8, and a side of inner graphite cover body 2 is provided with thermometric ventilating pit 7;
Described inner graphite cover body 2 be evenly distributed with up and down needle-like graphite source electrode 5, and be provided with graphite jig 3 in this inside graphite cover body 2, this graphite jig 3 is for holding workpiece 4;
Graphite jig 3 is suspended in workpiece 4 levels between upper and lower equally distributed needle-like graphite source electrode 5; In specific implementation, the distance between the workpiece 4 that this upper and lower equally distributed needle-like graphite source electrode 5 and level suspend is 8～15 millimeters;
The outside of described outside graphite cover body 1 is metal cover body 6, and is provided with another thermometric ventilating pit 9 in a side of this metal cover body 6.
In addition, in specific implementation, the outside graphite cover body 1 of placing in parallel and the gap between inner graphite cover body 2 are 10～20 millimeters; The graphite adopting is high purity graphite, and the material of external metallization cover body is soft steel.
In sum, the utility model embodiment is making full use of on the basis of hollow cathode effect, adopt the inside and outside graphite cover body of placing in parallel, utilize this to design and further increase glow discharge current density, improve ionization of gas rate, the sputter amount that increases carbon, is strapped in the carbon sputtering in graphite cover body, improves workpiece sputtered carbon element density around; Inner graphite cover body is evenly distributed with needle-like graphite source electrode up and down, utilizes the point effect of needle-like graphite source electrode, again increases sputter quantity and the energy of graphite element.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. for a graphite source electrode for aura non-hydrogen carbonizing, it is characterized in that, described graphite source electrode comprises outside graphite cover body and the inner graphite cover body of placing in parallel, wherein:
The integral body of inside and outside graphite cover body is cube, and inside and outside graphite cover body all has thermometric ventilating pit in the same side;
Described inner graphite cover body be evenly distributed with up and down needle-like graphite source electrode, and be provided with graphite jig in this inside graphite cover body;
Described graphite jig is suspended in workpiece level between upper and lower equally distributed needle-like graphite source electrode;
The outside of described outside graphite cover body is metal cover body, and is provided with another thermometric ventilating pit in a side of this metal cover body.
2. according to claim 1 for the graphite source electrode of aura non-hydrogen carbonizing, it is characterized in that,
The described outside graphite cover body of placing in parallel and the gap between inner graphite cover body are 10～20 millimeters.
3. according to claim 1 for the graphite source electrode of aura non-hydrogen carbonizing, it is characterized in that,
Distance between the workpiece that described upper and lower equally distributed needle-like graphite source electrode and level suspend is 8～15 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176391.8U CN203890427U (en) | 2014-04-11 | 2014-04-11 | Graphite source electrode for glow non-hydrogen carburization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176391.8U CN203890427U (en) | 2014-04-11 | 2014-04-11 | Graphite source electrode for glow non-hydrogen carburization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890427U true CN203890427U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420176391.8U Withdrawn - After Issue CN203890427U (en) | 2014-04-11 | 2014-04-11 | Graphite source electrode for glow non-hydrogen carburization |
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| CN (1) | CN203890427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882369A (en) * | 2014-04-11 | 2014-06-25 | 北京石油化工学院 | Graphite source electrode for glow carburizing without hydrogen |
-
2014
- 2014-04-11 CN CN201420176391.8U patent/CN203890427U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882369A (en) * | 2014-04-11 | 2014-06-25 | 北京石油化工学院 | Graphite source electrode for glow carburizing without hydrogen |
| CN103882369B (en) * | 2014-04-11 | 2016-05-18 | 北京石油化工学院 | A kind of graphite source electrode for aura non-hydrogen carbonizing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |