CN104785782A - Powder metallurgy high-pressure hydraulic stator production process - Google Patents
Powder metallurgy high-pressure hydraulic stator production process Download PDFInfo
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- CN104785782A CN104785782A CN201510053135.9A CN201510053135A CN104785782A CN 104785782 A CN104785782 A CN 104785782A CN 201510053135 A CN201510053135 A CN 201510053135A CN 104785782 A CN104785782 A CN 104785782A
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Abstract
The invention discloses a powder metallurgy high-pressure hydraulic stator production process. The production process comprises the following steps of material selecting, grinding tool machining, forming pressing, sintering hardening, tempering, resin impregnating for hole sealing and fine machining. By the adoption of the technical scheme, high-pressure hydraulic stators can be produced continuously and stably, and the quality is stable and reliable; compared with traditional machining, the flow has the advantages that the production process is simple, the period is short, and the cost is low.
Description
Technical field
The present invention relates to a kind of production technology, be specifically related to a kind of powder metallurgy high-pressure and hydraulic stator production technology.
Background technology
At ordinary powder metallurgical production process, the technological process of producing hydraulic pressure stator is relatively many, but the technological process of producing high-pressure and hydraulic stator is very few, because the stator density of ordinary powder metallurgical production is lower, follow-uply usually make up the low and problems such as leakage of density by steam treatment, cause the shortcomings such as the hardness of stator is low, and wearability is poor, and service life is short like this.
Summary of the invention
The object of the invention is to the above problem overcoming prior art existence, a kind of powder metallurgy high-pressure and hydraulic stator production technology is provided.
For achieving the above object, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of powder metallurgy high-pressure and hydraulic stator production technology, comprises the following steps:
Step 1) selection, according to behaviour in service and the intensity of stator, the material standard of combining powder metallurgy establishes the powder assortment class of stator;
Step 2) Mould Machining, according to the blank dimension specification of stator, in conjunction with this powder material size changing rate during the course, make the corresponding mould of processing, the processing of mould is through flow processs such as common machine processing, Linear cut, some spark, polishing, grinding, inspections;
The shaping compacting of step 3), according to the density specification of stator, height dimension requirement, selects the profiled member of the press compacting stator of corresponding powder material and corresponding tonnage;
Step 4) is sinter-hardened, and the profiled member of stator is sintered about 30 minutes at 1120 DEG C, and after sintering, carry out fast cold treatment to product, rapid cooling frequency is 30Hz, makes product Quenching Treatment, improves product hardness, reaches class and be similar to common thermal effectiveness;
Step 5) temper, carries out temper by sinter-hardened stator, prevents the product failure because stress raisers crack;
Step 6) resin-dipping sealing of hole, stator after tempering is carried out resin-dipping sealing of hole, mainly when vacuumizing 0.7Kpa, stator is carried out organic matter infiltration process, then the 0.6Mpa that pressurizes makes stator fully infiltrate, then cleaning treatment falls the organic matter of stator surface, is finally heated to 93 DEG C, 15 minutes, organic matter in stator capillary aperture is carried out heat cure, utilizes the organic matter of heat cure thoroughly to seal the pore of stator like this, improve the sealing of stator;
Step 7) essence mechanical process.Mainly stator faces corase grind, the machining of cycloid of fine grinding, inner chamber.After end face fine-grinding, the flatness of both ends of the surface can reach within 0.002, height-precision reaches ± 0.003 within.
Further, the selection in described step (1) is FLC-4608.
Further, the density in described step (3) is 7.10g/CM
3left and right, stator height 24mm.
Further, the hardness after the stator sintering in described step (4) reaches HRC40.
Preferably, the stator temperature in described step (5) 200 DEG C, and 120 minutes need be incubated.
Further, the test sealing load of the stator in described step (6) can reach 14Mpa.
Further, the stator after the fine finishining in described step (7) namely can match with rotor and assemble, and is applied in hydraulic system.
The invention has the beneficial effects as follows:
Adopt technical solution of the present invention, can continuous and stable production high-pressure and hydraulic stator, and steady quality is reliable, compared with traditional machined, change flow process and have and have production technology simple, the cycle is short, low cost and other advantages.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, is not formed the bright improper restriction of we.In the accompanying drawings:
Fig. 1 is the sintering temperature curve schematic diagram of powder metallurgy high-pressure and hydraulic stator production technology of the present invention;
Fig. 2 is the stator structure schematic diagram of powder metallurgy high-pressure and hydraulic stator production technology of the present invention.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments in detail, design feature of the present invention and technology implementation process are described in detail:
Shown in Fig. 1-Fig. 2, a kind of powder metallurgy high-pressure and hydraulic stator production technology, comprises the following steps:
Step 1) selection, according to behaviour in service and the intensity of stator, the material standard of combining powder metallurgy establishes the powder assortment class of stator;
Step 2) Mould Machining, according to the blank dimension specification of stator, in conjunction with this powder material size changing rate during the course, make the corresponding mould of processing, the processing of mould is through flow processs such as common machine processing, Linear cut, some spark, polishing, grinding, inspections;
The shaping compacting of step 3), according to the density specification of stator, height dimension requirement, selects the profiled member of the press compacting stator of corresponding powder material and corresponding tonnage;
Step 4) is sinter-hardened, and the profiled member of stator is sintered about 30 minutes at 1120 DEG C, and after sintering, carry out fast cold treatment to product, rapid cooling frequency is 30Hz, makes product Quenching Treatment, improves product hardness, reaches class and be similar to common thermal effectiveness;
Step 5) temper, carries out temper by sinter-hardened stator, prevents the product failure because stress raisers crack;
Step 6) resin-dipping sealing of hole, stator after tempering is carried out resin-dipping sealing of hole, mainly when vacuumizing 0.7Kpa, stator is carried out organic matter infiltration process, then the 0.6Mpa that pressurizes makes stator fully infiltrate, then cleaning treatment falls the organic matter of stator surface, is finally heated to 93 DEG C, 15 minutes, organic matter in stator capillary aperture is carried out heat cure, utilizes the organic matter of heat cure thoroughly to seal the pore of stator like this, improve the sealing of stator;
Step 7) essence mechanical process.Mainly stator faces corase grind, the machining of cycloid of fine grinding, inner chamber.After end face fine-grinding, the flatness of both ends of the surface can reach within 0.002, height-precision reaches ± 0.003 within.
Further, the selection in described step (1) is FLC-4608.
Further, the density in described step (3) is 7.10g/CM
3left and right, stator height 24mm.
Further, the hardness after the stator sintering in described step (4) reaches HRC40.
Preferably, the stator temperature in described step (5) 200 DEG C, and 120 minutes need be incubated.
Further, the test sealing load of the stator in described step (6) can reach 14Mpa.
Further, the stator after the fine finishining in described step (7) namely can match with rotor and assemble, and is applied in hydraulic system.
Principle of the present invention:
The technological process of production of this stator improves the hardness of stator, wearability and service life by sinter-hardened technique.Separately make up the low and problems such as leakage of stator density by resin-dipping sealing of hole.。
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a powder metallurgy high-pressure and hydraulic stator production technology, is characterized in that, comprise the following steps:
Step 1) selection, according to behaviour in service and the intensity of stator, the material standard of combining powder metallurgy establishes the powder assortment class of stator;
Step 2) Mould Machining, according to the blank dimension specification of stator, in conjunction with this powder material size changing rate during the course, make the corresponding mould of processing, the processing of mould is through flow processs such as common machine processing, Linear cut, electric spark, polishing, grinding, inspections;
The shaping compacting of step 3), according to the density specification of stator, height dimension requirement, selects the profiled member of the press compacting stator of corresponding powder material and corresponding tonnage;
Step 4) is sinter-hardened, and the profiled member of stator is sintered about 30 minutes at 1120 DEG C, and after sintering, carry out fast cold treatment to product, rapid cooling frequency is 30Hz, makes product Quenching Treatment, improves product hardness, reaches class and be similar to common thermal effectiveness;
Step 5) temper, carries out temper by sinter-hardened stator, prevents the product failure because stress raisers crack;
Step 6) resin-dipping sealing of hole, stator after tempering is carried out resin-dipping sealing of hole, mainly when vacuumizing 0.7Kpa, stator is carried out organic matter infiltration process, then the 0.6Mpa that pressurizes makes stator fully infiltrate, then cleaning treatment falls the organic matter of stator surface, is finally heated to 93 DEG C, 15 minutes, organic matter in stator capillary aperture is carried out heat cure, utilizes the organic matter of heat cure thoroughly to seal the pore of stator like this, improve the sealing of stator;
Step 7) essence mechanical process, mainly stator faces corase grind, the machining of cycloid of fine grinding, inner chamber; After end face fine-grinding, the flatness of both ends of the surface can reach within 0.002, height-precision reaches ± 0.003 within.
2. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, it is characterized in that, the selection in described step (1) is FLC-4608.
3. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, it is characterized in that, the density in described step (3) is 7.10g/CM
3left and right, stator height 24mm.
4. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, is characterized in that, the hardness after the stator sintering in described step (4) reaches HRC40.
5. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, is characterized in that, the stator temperature in described step (5) 200 DEG C, and need be incubated 120 minutes.
6. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, it is characterized in that, the test sealing load of the stator in described step (6) can reach 14Mpa.
7. powder metallurgy high-pressure and hydraulic stator production technology according to claim 1, is characterized in that, the stator after the fine finishining in described step (7) namely can match with rotor and assemble, and is applied in hydraulic system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492700A (en) * | 2019-08-13 | 2019-11-22 | 宁国井田机电有限公司 | A kind of production technology of compressor motor stator |
| CN110699628A (en) * | 2019-10-14 | 2020-01-17 | 洛阳轴承研究所有限公司 | Hole sealing method of plasma spraying coating and insulating bearing |
| CN112522632A (en) * | 2020-12-09 | 2021-03-19 | 苏州莱特复合材料有限公司 | Powder metallurgy wear-resistant stator and production process thereof |
| CN112536437A (en) * | 2020-11-03 | 2021-03-23 | 苏州莱特复合材料有限公司 | Powder metallurgy high-strength spring guide seat of hydraulic system and production process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265118A (en) * | 1997-07-03 | 2000-08-30 | 洛克泰特公司 | High temp. controlled strength anaerobic adhesive compsns. curable under ambient environmental conditions |
| US20020023693A1 (en) * | 1999-05-28 | 2002-02-28 | Louis-Philippe Lefebvre | Manufacturing soft magnetic components using a ferrous powder and a lubricant |
| CN101182836A (en) * | 2006-11-15 | 2008-05-21 | 日立粉末冶金株式会社 | Sintered composite machine part and manufacturing method thereof |
| CN101641174A (en) * | 2007-03-21 | 2010-02-03 | 霍加纳斯股份有限公司 | Powder metal polymer composites |
| CN102345677A (en) * | 2010-08-02 | 2012-02-08 | 保来得株式会社 | Method for producing fluid dynamic pressure bearing |
-
2015
- 2015-02-02 CN CN201510053135.9A patent/CN104785782B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265118A (en) * | 1997-07-03 | 2000-08-30 | 洛克泰特公司 | High temp. controlled strength anaerobic adhesive compsns. curable under ambient environmental conditions |
| US20020023693A1 (en) * | 1999-05-28 | 2002-02-28 | Louis-Philippe Lefebvre | Manufacturing soft magnetic components using a ferrous powder and a lubricant |
| CN101182836A (en) * | 2006-11-15 | 2008-05-21 | 日立粉末冶金株式会社 | Sintered composite machine part and manufacturing method thereof |
| CN101641174A (en) * | 2007-03-21 | 2010-02-03 | 霍加纳斯股份有限公司 | Powder metal polymer composites |
| CN102345677A (en) * | 2010-08-02 | 2012-02-08 | 保来得株式会社 | Method for producing fluid dynamic pressure bearing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492700A (en) * | 2019-08-13 | 2019-11-22 | 宁国井田机电有限公司 | A kind of production technology of compressor motor stator |
| CN110699628A (en) * | 2019-10-14 | 2020-01-17 | 洛阳轴承研究所有限公司 | Hole sealing method of plasma spraying coating and insulating bearing |
| CN112536437A (en) * | 2020-11-03 | 2021-03-23 | 苏州莱特复合材料有限公司 | Powder metallurgy high-strength spring guide seat of hydraulic system and production process thereof |
| CN112522632A (en) * | 2020-12-09 | 2021-03-19 | 苏州莱特复合材料有限公司 | Powder metallurgy wear-resistant stator and production process thereof |
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| CN104785782B (en) | 2017-01-25 |
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