CN201252156Y - Conductive electrode of sintering press - Google Patents
Conductive electrode of sintering press Download PDFInfo
- Publication number
- CN201252156Y CN201252156Y CNU2008200711395U CN200820071139U CN201252156Y CN 201252156 Y CN201252156 Y CN 201252156Y CN U2008200711395 U CNU2008200711395 U CN U2008200711395U CN 200820071139 U CN200820071139 U CN 200820071139U CN 201252156 Y CN201252156 Y CN 201252156Y
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- CN
- China
- Prior art keywords
- copper belt
- conductive electrode
- sintering
- sintering press
- copper
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses a conductive electrode of sintering press, comprising a copper strip of block type, wherein one end of the copper strip is connected with a transformer connecting plate and the another end is connected with an aluminum press plate and a graphite press head. The utility model changes the bulk installment of the copper strips of traditional electrode that processes bulk copper strips into regular block structure. Tests prove that the copper strip of block type has low oxidation rate and reduced heat generation in use, has simple detachment and improved sintering efficiency for various structures. When the section of the copper strip can satisfy the requirement of maximum heating current of sintering press, each electrode can own 1 to 4 copper strips which welded length are 70 to 250mm according to different structural demands. The conductive electrode has the advantages that the bulb copper strips are processed into block structure to be applied in sintering electrode, to realize complete contact between copper strips, thereby reducing voltage loss in electric conduction.
Description
Technical field
The utility model relates to a kind of conductive electrode, specifically relates to a kind of through the sintering press conductive electrode after the pressure welding processing.
Background technology
The sintering press is the special equipment of superhard material goods, the electrode structure of present domestic sintering press is commonly copper belt and is connected with the brass sheet screw, copper belt is not through any loose condition (of surface) that is treated to, in installation process, do not press tightly, press unreal, there is the incomplete problem of contact, cause in the generation heating bigger than normal of the junction of copper strips and copper coin resistance, oxidation, influence the operating efficiency of press.The copper belt of oxidation needs regular dismounting to handle, and has increased user's later maintenance cost.
The molecular diffusion welding technology can be treated to bulk with scattered copper belt as the new processing method of copper belt, is mainly used in the large scale electrical power unit bus at present and installs, and also is not applied to sintering press electrode structure, and manufacturing cost is than higher.
Summary of the invention
The purpose of this utility model provides a kind of through the sintering press conductive electrode after the pressure welding processing.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises block copper belt, and an end of above-mentioned block copper belt is connected with the transformer connecting plate, and its other end links together with aluminium pressing plate and graphite pressure head respectively.
Weld together between above-mentioned block copper belt and the transformer connecting plate, and block copper belt is bolt with the aluminium pressing plate with the graphite pressure head and is connected.
For bolt is connected, and block copper belt is bolt with the aluminium pressing plate with the graphite pressure head and is connected between above-mentioned block copper belt and the transformer connecting plate.
The other end of above-mentioned block copper belt is connected with an end of brass sheet, and the upper surface of the brass sheet other end is connected with the aluminium pressing plate, and its lower surface and graphite pressure head link together.
Above-mentioned brass sheet is a sheet brass, and the lower surface of brass sheet links together by little copper plate and graphite pressure head.
Be welding between above-mentioned block copper belt and the brass sheet.
The upper surface of the above-mentioned block copper belt other end is connected with the aluminium pressing plate, and its lower surface links to each other with the upper surface of little brass sheet, and the lower surface of little brass sheet links together with the graphite pressure head again.
Be welding between the lower surface of above-mentioned block copper belt and the upper surface of little brass sheet.
In each sintering press conductive electrode, described block copper belt is 1～4.
Adopt the utility model of such scheme, changed the scattered installation of copper belt of traditional electrode, it is the block structure that scattered copper belt is processed into rule, through overtesting, block copper belt operating state oxidation is little, caloric value reduces, and easy accessibility, various structure sintering efficient all increase.As long as the copper belt sectional area can satisfy the requirement of sintering press maximum heat current, each electrode copper belt can be 1～4, and the copper belt weld length can be 70mm～250mm according to the requirement of different structure.
The beneficial effects of the utility model are that scattered copper belt is processed into block structure and is applied to sintered electrode, makes between the copper belt level to contact fully, reaches the voltage loss that reduces in the conductivity process, the purpose of increasing work efficiency.By adjusting transformer tapping and voltage, current value, guaranteeing under the identical condition of input power, the graphite workpiece of sintering same size, measurement is in voltage, real work efficient and the heating time of copper belt junction, can draw, the block junction voltage drop of copper belt of welding back reduces 6% than the voltage drop of traditional loose condition (of surface) junction, real work efficient has improved 3%-10%, and strong through the copper belt oxidation resistance after the welding, near and reduced the later maintenance expense, and easy accessibility, good looking appearance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model embodiment 3;
Fig. 4 is the structural representation of the utility model embodiment 4;
Fig. 5 is the syndeton schematic diagram of the utility model and sintering press rack.
Embodiment
As shown in Figure 1, the utility model comprises block copper belt 2, one end of block copper belt 2 and 1 welding of transformer connecting plate, its other end directly is connected with graphite pressure head 4 bolts with aluminium pressing plate 3, the upper surface that is block copper belt 2 other ends is connected with aluminium pressing plate 3 bolts, and the lower surface is connected with graphite pressure head 4 bolts.In each sintering press conductive electrode, block copper belt 2 is one.
Above-mentioned welding can be pressure welding, also can weld for molecular diffusion." pressure welding " is exactly under inert gas or vacuum state, do not add any solder flux, and big electric current produces heat by copper belt, when reaching the copper belt critical temperature, realizes the fluxless welding of copper belt.The forming principle of pressure welding technology is similar to the operation principle of sintering press, promptly by big electric current to the copper plate hot briquetting, can realize that the pressure welding of copper belt handles with high-power sintering press.After the processing, the copper belt of scattered state becomes block copper belt 2.
In the utility model, the manufacture method that the sintering press carries out the hot pressing welding is:
1, cleans copper belt with hydrochloric acid, remove the copper belt surface oxide layer;
2, use graphite jig that the copper belt welding position is positioned;
3, under inert gas or vacuum state the copper belt welding position is heated, heating current, temperature, pressure are enough to make copper belt to reach moulding;
4, natural cooling under inert gas or vacuum state.
Concrete preparation process of the present utility model is as follows:
Cut 120 conduction copper belts that the thick 90mm of 0.03mm is wide, resistivity is no more than 0.0185 Ω mm
2/ m, copper belt length is respectively 750mm, 630mm.It is that 8%～13% hydrochloric acid cleans that copper belt is put into concentration, cleans the back and with cloth the copper belt surface is wiped clean, and neatly puts into graphite jig, welding two ends 90 * 200mm
2The zone.Graphite jig is put into the vacuum-sintering press add thermal weld, heating needs to carry out under vacuum state, and vacuum degree is lower than the 0.001mmHg absolute pressure, pressure is set 5MPa, more than the heating current 18000A, is heated to 900 ℃, the vacuum state natural cooling obtains block copper belt 2.The welding back is gone up planer the copper belt head is processed, and simultaneously, in order to prevent the oxidation of postwelding outer surface, carries out the outer surface electroplating processes in the welding position of block copper belt 2, can be for zinc-plated or silver-plated.For the influence of the pulling force that reduces the block copper belt of operating state 2 itself, can carry out annealing in process to block copper belt 2 to the welding position.Block copper belt 2 after the pressure welding directly links to each other with graphite pressure head 4, prevents that the heat transferred at workpiece place from influencing operating efficiency to block copper belt 2 places, and the water flowing cooling processing is carried out at the pressure welding position.
By as shown in Figure 5 the conductive electrode of making being installed on the sintering press, aluminium pressing plate 3 is separately fixed on the upper beam 9 and sliding beam 10 of sintering press by insulation board 8.
As shown in Figure 2, the utility model comprises block copper belt 2, and an end of block copper belt 2 is connected with transformer connecting plate 1 bolt, the end welding of its other end and brass sheet 5, the upper surface of brass sheet 5 other ends is connected with aluminium pressing plate 3, and its lower surface and graphite pressure head 4 link together.In each sintering press conductive electrode, block copper belt 2 is two.
Its concrete preparation process is identical with embodiment 1 with mounting structure.
As shown in Figure 3, the utility model comprises block copper belt 2, one end of block copper belt 2 and 1 welding of transformer connecting plate, its other end is connected with a terminal bolt of sheet brass 5, the upper surface of sheet brass 5 other ends is connected with aluminium pressing plate 3, and its lower surface links together with graphite pressure head 4 by little copper plate 6.In each sintering press conductive electrode, block copper belt 2 is three.
Its concrete preparation process is identical with embodiment 1 with mounting structure.
As shown in Figure 4, the utility model comprises block copper belt 2, one end of block copper belt 2 is connected with transformer connecting plate 1 bolt, the upper surface of its other end is connected with aluminium pressing plate 3, the upper surface of lower surface and little brass sheet 7 welds together, and the lower surface of little brass sheet 7 links together with graphite pressure head 4 again.In each sintering press conductive electrode, block copper belt 2 is four.
Its concrete preparation process is identical with embodiment 1 with mounting structure.
Claims (9)
1, a kind of sintering press conductive electrode, it is characterized in that: it comprises block copper belt (2), and an end of described block copper belt (2) is connected with transformer connecting plate (1), and its other end links together with aluminium pressing plate (3) and graphite pressure head (4) respectively.
2, sintering press conductive electrode according to claim 1 is characterized in that: weld together between described block copper belt (2) and the transformer connecting plate (1), and block copper belt (2) is bolt with aluminium pressing plate (3) with graphite pressure head (4) and is connected.
3, sintering press conductive electrode according to claim 1 is characterized in that: for bolt is connected, and block copper belt (2) is bolt with aluminium pressing plate (3) with graphite pressure head (4) and is connected between described block copper belt (2) and the transformer connecting plate (1).
4, according to claim 1 or 2 or 3 described sintering press conductive electrodes, it is characterized in that: the other end of described block copper belt (2) is connected with an end of brass sheet (5), the upper surface of brass sheet (5) other end is connected with aluminium pressing plate (3), and its lower surface and graphite pressure head (4) link together.
5, sintering press conductive electrode according to claim 4 is characterized in that: described brass sheet (5) is a sheet brass, and the lower surface of brass sheet (5) links together by little copper plate (6) and graphite pressure head (4).
6, sintering press conductive electrode according to claim 5 is characterized in that: be welding between described block copper belt (2) and the brass sheet (5).
7, according to claim 1 or 2 or 3 described sintering press conductive electrodes, it is characterized in that: the upper surface of described block copper belt (2) other end is connected with aluminium pressing plate (3), its lower surface links to each other with the upper surface of little brass sheet (7), and the lower surface of little brass sheet (7) links together with graphite pressure head (4) again.
8, sintering press conductive electrode according to claim 7 is characterized in that: be welding between the upper surface of the lower surface of described block copper belt (2) and little brass sheet (7).
9, sintering press conductive electrode according to claim 1 is characterized in that: in each sintering press conductive electrode, described block copper belt (2) is 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200711395U CN201252156Y (en) | 2008-06-20 | 2008-06-20 | Conductive electrode of sintering press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200711395U CN201252156Y (en) | 2008-06-20 | 2008-06-20 | Conductive electrode of sintering press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252156Y true CN201252156Y (en) | 2009-06-03 |
Family
ID=40747828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200711395U Expired - Lifetime CN201252156Y (en) | 2008-06-20 | 2008-06-20 | Conductive electrode of sintering press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252156Y (en) |
-
2008
- 2008-06-20 CN CNU2008200711395U patent/CN201252156Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES + GRIND Free format text: FORMER OWNER: ZHENGZHOU ABRASIVE MATERIALS, ABRASIVE TOOLS, GRINDING INST. (CN) NO.1 HUASHAN R Effective date: 20140114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140114 Address after: 450013 No. 121, Huashan Road, Zhengzhou, Henan Patentee after: Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. Address before: 450013 No. 121, Huashan Road, Zhengzhou, Henan Patentee before: Zhengzhou Research Institute for Abrasive & Grinding Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
|
| CX01 | Expiry of patent term |