CN202278361U - Powder metallurgy support - Google Patents
Powder metallurgy support Download PDFInfo
- Publication number
- CN202278361U CN202278361U CN2011204253082U CN201120425308U CN202278361U CN 202278361 U CN202278361 U CN 202278361U CN 2011204253082 U CN2011204253082 U CN 2011204253082U CN 201120425308 U CN201120425308 U CN 201120425308U CN 202278361 U CN202278361 U CN 202278361U
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- China
- Prior art keywords
- powder metallurgy
- outer ring
- support
- metallurgy support
- transition outer
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Abstract
A powder metallurgy support is characterized in that: the powder metallurgy support is obtained through performing soldering jointing on a powder metallurgy support substrate and a transition outer ring that is sleeved on the powder metallurgy support substrate; and the transition outer ring is an integral member which is compressed through a power metallurgy mode. According to the powder metallurgy support, the support which has a complicated shape and is difficult to form through a common press is separated, and the separated parts are combined through a powder metallurgy sintering soldering method. The powder metallurgy support has the following advantages: small weight, small machining amount and high efficiency. Simultaneously the outer ring has higher density. The low-carbon-content powder metallurgy material is adopted. The powder metallurgy material has excellent welding performance and does not affect the welding process. The support substrate has the following advantages: higher carbon content, high wearing resistance and capability of satisfying use requirement.
Description
Technical field
The utility model relates to a kind of structure of powder metallurgy support, refers in particular to the compressor bearing.
Background technology
In the compressor industry, powerful compressor adopts cast blank to carry out machined at present.Mach method speed is slower, and stock utilization is low, and homogeneity of product is poor.The product that processes adopts the welding manner assembling when assembling.For the welding of cast iron, owing to be conventional material, general Compressors Factory does not all have big technological problems, and welding quality and weld strength all can guarantee preferably.But for the metallurgical bearing of integrated powder, owing to contain more C, Cu element, very big to the welding intensity effect, influenced the application of powder metallurgy support in compressor, especially need weld the high-power compressor of assembling.
Therefore how improving the metallurgical bearing weld strength of existing integrated powder, make that the welding performance of powder metallurgy support is suitable with the cast iron bearing, is that problem to be solved is arranged at present.
Summary of the invention
The utility model technical problem to be solved is that welding performance is suitable with the cast iron bearing to the above-mentioned state of the art and a kind of powder metallurgy support is provided, and have in light weight, cost is low, energy consumption is little, advantage of high production efficiency.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of powder metallurgy support; It is characterized in that: said powder metallurgy support be the powder metallurgy support matrix be placed on transition outer ring on the powder metallurgy support matrix through the soldering single piece that is formed by connecting, said transition outer ring is the single piece that adopts the compression moulding of powder metallurgy mode.
As improvement, the density of said transition outer ring is 6.5～7.5g/cm
3, the middle part of transition outer ring is provided with hollow out, and on the transition outer ring, is provided with a plurality of bar holes that are used for loss of weight.
Improve, the periphery of said powder metallurgy support matrix is circular again, and the density of said powder metallurgy bearing matrix is 6.0～7.3g/cm
3
At last, said transition outer ring is connected with the periphery of said powder metallurgy support matrix through the mode of sintering soldering.
Compared with prior art; The advantage of the utility model is: the bearing that complex-shaped and general press is difficult to moulding decomposes; Adopt powder metallurgy sintered method for welding again it to be combined, realized that powder metallurgy support is in light weight, few processing and high efficiency advantage.The density of the outer ring of transition simultaneously is higher, adopts the powdered metallurgical material of low carbon content, and its welding performance is good, do not influence welding process, and the carbon content of powder metallurgy support matrix is higher, and wearability is good, can satisfy the requirement of use, and overall structure is simple and practical.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 a, 2b, 2c are the structural representation of the powder metallurgy support matrix of the utility model embodiment;
Fig. 3 a, 3b, 3c are the structural representation of the transition outer ring of the utility model embodiment;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure; A kind of powder metallurgy support; Combine single piece by powder metallurgy support matrix 1 and the transition outer ring 2 that is placed on the powder metallurgy support matrix 1 through the sintering soldering, the periphery of said powder metallurgy support matrix 1 is circular, and its density is 6.0～7.3g/cm
3, its carbon content is higher, and wearability is good, can satisfy the requirement of use; Said transition outer ring 2 is the single piece that adopt the compression moulding of powder metallurgy mode, and its density is higher to be 6.5～7.5g/cm
3, the powdered metallurgical material of employing low carbon content, its welding performance is good, does not influence welding process, and the middle part of transition outer ring 2 is provided with hollow out, and on transition outer ring 2, is provided with a plurality of bar holes 21 that are used for loss of weight; Can adjust integrally-built intrinsic frequency of bearing and weight through the quantity and the shape of regulating bar hole 21, can also be used to place scolder in the inboard simultaneously.
Concrete manufacturing process through powder metallurgy support is described further the utility model below:
(1), the metallurgical bearing matrix 1 of pressed powder, it is 6.0～7.3g/cm that iron powder is pressed into density
3Powder metallurgy support matrix 1, the chemical composition of flange matrix is seen table 1:
The chemical composition of table 1 bearing matrix
| Carbon content % | Copper content % | Other | Iron |
| 0.3～1.2 | 0～6.0 | Less than 5% | Surplus |
(2), compacting transition outer ring 2.It is 6.5～7.5g/cm that iron powder is pressed into density
3Transition outer ring 2.The chemical composition of transition outer ring 2 is seen table 2:
The chemical composition of table 2 outer ring
| Carbon content % | Copper content % | Other | Iron |
| 0～0.6 | 0～6.0 | Less than 5% | Surplus |
(3), assembling: transition outer ring 2 and powder metallurgy support matrix 1 are combined, and placed braze in through solder apertures in the two periphery junction.
(4), adopt the sintering brazing mode to be connected between powder metallurgy support matrix 1 and the transition outer ring 2.It is 1000～1300 ℃ that this combined isolator is placed temperature, in vacuum or help in the sintering furnace of sintering atmosphere of weldering gas sintering 5～50 minutes;
(5), welding back measurement size and precision, need to determine whether machined.
(6), the bearing that will process carries out steam treatment, promptly accomplishes the manufacturing process of powder metallurgy support.
Embodiment 1
(1), the metallurgical bearing matrix 1 of pressed powder, it is 6.6g/cm that iron powder is pressed into density
3Powder metallurgy support matrix 1, the chemical composition of flange matrix is seen table 1:
The chemical composition of table 1 bearing matrix
| Carbon content, % | Copper content, % | Other | Iron |
| 0.7 | 1.8 | Less than 2% | Surplus |
(2), compacting transition outer ring 2.It is 7.2g/cm that iron powder is pressed into density
3Transition outer ring 2.The chemical composition of transition outer ring 2 is seen table 2:
The chemical composition of table 2 outer ring
| Carbon content % | Copper content % | Other | Iron |
| 0.2 | 1 | Less than 2% | Surplus |
(3), assembling: transition outer ring 2 and, powder metallurgy support matrix 1 are combined, and in the two periphery bonding gap, placed braze.
(4), adopt the sintering brazing mode to be connected between powder metallurgy support matrix 1 and the transition outer ring 2, it is 1120 ℃ that this combined isolator is placed temperature, in the sintering furnace of nitrogen hydrogen sintering atmosphere, and sintering 30 minutes;
(5), welding back measurement size and precision, need to determine whether machined.
(6), the bearing that will process carries out steam treatment, promptly accomplishes the manufacturing process of powder metallurgy support.
Claims (4)
1. powder metallurgy support; It is characterized in that: be the powder metallurgy support matrix be placed on transition outer ring on the powder metallurgy support matrix through the soldering single piece that is formed by connecting, and said transition outer ring is the single piece that adopts the compression moulding of powder metallurgy mode.
2. powder metallurgy support according to claim 1 is characterized in that the middle part of said transition outer ring is provided with hollow out, and on the transition outer ring, is provided with a plurality of bar holes that are used for loss of weight.
3. powder metallurgy support according to claim 1, the periphery that it is characterized in that said powder metallurgy support matrix is for circular.
4. according to claim 1 or 2 or 3 described powder metallurgy supports, it is characterized in that said transition outer ring is connected with the periphery of said powder metallurgy support matrix through the mode of sintering soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204253082U CN202278361U (en) | 2011-11-01 | 2011-11-01 | Powder metallurgy support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204253082U CN202278361U (en) | 2011-11-01 | 2011-11-01 | Powder metallurgy support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202278361U true CN202278361U (en) | 2012-06-20 |
Family
ID=46224546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204253082U Expired - Lifetime CN202278361U (en) | 2011-11-01 | 2011-11-01 | Powder metallurgy support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202278361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108731A (en) * | 2020-09-21 | 2020-12-22 | 北京正火天创科技有限责任公司 | Manufacturing method of hemispherical wear-resistant structure of bridge support |
-
2011
- 2011-11-01 CN CN2011204253082U patent/CN202278361U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108731A (en) * | 2020-09-21 | 2020-12-22 | 北京正火天创科技有限责任公司 | Manufacturing method of hemispherical wear-resistant structure of bridge support |
| CN112108731B (en) * | 2020-09-21 | 2022-01-14 | 北京正火天创科技有限责任公司 | Manufacturing method of hemispherical wear-resistant structure of bridge support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: The peaceful powder metallurgy Co., Ltd of Changchun Fu Aodong Assignor: NBTM New Materials Group Co., Ltd. Contract record no.: 2014220000035 Denomination of utility model: Manufacture method of powder metallurgy support Granted publication date: 20120620 License type: Exclusive License Record date: 20140704 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |