CN106312448A - Manufacturing technique for pressure pump valve housing of petroleum fracturing truck - Google Patents
Manufacturing technique for pressure pump valve housing of petroleum fracturing truck Download PDFInfo
- Publication number
- CN106312448A CN106312448A CN201510378846.3A CN201510378846A CN106312448A CN 106312448 A CN106312448 A CN 106312448A CN 201510378846 A CN201510378846 A CN 201510378846A CN 106312448 A CN106312448 A CN 106312448A
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- China
- Prior art keywords
- compression pump
- clack box
- forging
- time
- normalizing
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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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a manufacturing technique for a pressure pump valve housing of a petroleum fracturing truck. According to the manufacturing technique for the pressure pump valve housing of the petroleum fracturing truck, a hard nitrogenization process is additionally executed after a finish machining procedure, wherein the heating temperature for hard nitrogenization is 500-550 DEG C, and the treatment time is 15-70 hours; and the surface hardness of an inner cavity of a forged piece after hard nitrogenization treatment is 53-58 HRC, and the depth of nitration is 0.5-0.8 mm. By the adoption of the manufacturing technique for the pressure pump valve housing of the petroleum fracturing truck, the quenching and tempering hardness of a workpiece is kept, the surface hardness of the inner cavity of a product is made high, the red hardness, abrasion resistance, corrosion resistance and adhesive resistance of the surface of the inner cavity are improved, the service life of the product is prolonged by 20%, and the manufacturing technique has extremely broad market prospects.
Description
Technical field
The present invention relates to the processing technology of the compression pump clack box of a kind of oil fracturing car.
Background technology
Compression pump clack box is the key fitment of oil fracturing car, and compression pump clack box utilizes compression pump
Group, injects fracturing fluid in well with the discharge capacity substantially exceeding formation absorption ability, makes formation fracture,
Continue to inject in seam fracturing fluid.In fracturing process, product cavity is the most in a high voltage state.
Compression pump clack box generally uses 4330V MOD steel alloy, uses normalizing, quenched place
Science and engineering skill is processed, and owing to compression pump clack box is oversize, often has influence on overall quenching degree,
The reduction of compression pump clack box heart portion intensity directly affects the service life of compression pump clack box.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the heart portion intensity of existing compression pump clack box not
High defect, it is provided that the processing technology of the compression pump clack box of a kind of oil fracturing car.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
The processing technology of the compression pump clack box of a kind of oil fracturing car, comprises the following steps:
1), compression pump clack box forging blank carries out roughing；
2), normalizing, quenched；
3), polish；
4), firmly nitrogenize
At outer surface and all screw threads just one layer of impermeable coating of brush of compression pump clack box, coating is dried
Rear shove charge carries out thermal nitridation process；The heating-up temperature of hard nitridation is 500～550 DEG C, during process
Between be 15～70 hours；After hard nitrogen treatment, the case hardness of forging inner chamber is 53～58HRC；
The depth of nitration of hard nitrogen treatment is 0.5-0.8mm.
5), packaging.
Further, described step 2) normalizing, quenched include following several step:
(1), normalizing for the first time, supercool
Described first time normalizing is, after the forging of compression pump clack box is heated up to 900～920 DEG C,
Keep this temperature 8～14h；
(2), normalizing for the second time, supercool
Described second time normalizing is, after the forging of compression pump clack box is heated up to 880～900 DEG C,
Keep this temperature 8～14h；
(3), modifier treatment
Quench after forging being heated up to 840～880 DEG C and keeping this temperature 8～14h, by forging
It is tempered after being heated up to 580～640 DEG C and keeping this temperature 12～18h；Described first time mistake
Cold and second time the most supercool is: by air-cooled for forging after 250 DEG C, air cooling is to room temperature.
The compression pump clack box processing technology of the oil fracturing car of the present invention, increases after finishing step
Having added hard nitriding process, the heating-up temperature of hard nitridation is 500～550 DEG C, the process time be 15～
70 hours；After hard nitrogen treatment, the case hardness of forging inner chamber is 53～58HRC, at hard nitridation
The depth of nitration of reason is 0.5-0.8mm；Both kept the quenching and tempering hardness of workpiece, made again product cavity
Surface has high rigidity, improves the red hardness of surface of internal cavity, wearability, corrosion stability and bite-resistant
Performance, improves the service life of product 20%, has good market prospect.
Detailed description of the invention
Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment 1
The processing technology of the compression pump clack box of a kind of oil fracturing car, comprises the following steps:
1), compression pump clack box forging blank carries out roughing；
2), normalizing, quenched
1., normalizing for the first time, supercool
Described first time normalizing is, after the forging of compression pump clack box is heated up to 900 DEG C, keeps
This temperature 14h；
2., normalizing for the second time, supercool
Described second time normalizing is, after the forging of compression pump clack box is heated up to 880 DEG C, keeps
This temperature 14h；
3., modifier treatment
Quench after forging being heated up to 840 DEG C and keeping this temperature 14h, forging is heated up to
580 DEG C and be tempered after keeping this temperature 18h；Described first time is supercool and second time is supercool all
For: by air-cooled for forging after 250 DEG C, air cooling is to room temperature.
3), polish；
4), firmly nitrogenize
At outer surface and all screw threads just one layer of impermeable coating of brush of compression pump clack box, coating is dried
Rear shove charge carries out thermal nitridation process；The heating-up temperature of hard nitridation is 500 DEG C, and the process time is 70
Hour；After hard nitrogen treatment, the case hardness of forging inner chamber is 58HRC；
5), packaging.
Embodiment 2
The processing technology of the compression pump clack box of a kind of oil fracturing car, comprises the following steps:
1), compression pump clack box forging blank carries out roughing；
2), normalizing, quenched
1., normalizing for the first time, supercool
Described first time normalizing is, after the forging of compression pump clack box is heated up to 920 DEG C, keeps
This temperature 8h；
2., normalizing for the second time, supercool
Described second time normalizing is, after the forging of compression pump clack box is heated up to 900 DEG C, keeps
This temperature 8h；
3., modifier treatment
Quench after forging being heated up to 880 DEG C and keeping this temperature 8h, forging is heated up to 640
DEG C and keep being tempered after this temperature 12h；Described first time is supercool and second time is supercool is:
By air-cooled for forging after 250 DEG C, air cooling is to room temperature.
3), polish；
4), firmly nitrogenize
At outer surface and all screw threads just one layer of impermeable coating of brush of compression pump clack box, coating is dried
Rear shove charge carries out thermal nitridation process；The heating-up temperature of hard nitridation is 550 DEG C, and the process time is 15
Hour；After hard nitrogen treatment, the case hardness of forging inner chamber is 53HRC；
5), packaging.
Embodiment 3
The processing technology of the compression pump clack box of a kind of oil fracturing car, comprises the following steps:
1), compression pump clack box forging blank carries out roughing；
2), normalizing, quenched
1., normalizing for the first time, supercool
Described first time normalizing is, after the forging of compression pump clack box is heated up to 910 DEG C, keeps
This temperature 11h；
2., normalizing for the second time, supercool
Described second time normalizing is, after the forging of compression pump clack box is heated up to 865 DEG C, keeps
This temperature 11h；
3., modifier treatment
Quench after forging being heated up to 860 DEG C and keeping this temperature 11h, forging is heated up to
610 DEG C and be tempered after keeping this temperature 15h；Described first time is supercool and second time is supercool all
For: by air-cooled for forging after 250 DEG C, air cooling is to room temperature.
3), polish；
4), firmly nitrogenize
At outer surface and all screw threads just one layer of impermeable coating of brush of compression pump clack box, coating is dried
Rear shove charge carries out thermal nitridation process；The heating-up temperature of hard nitridation is 525 DEG C, and the process time is 40
Hour；After hard nitrogen treatment, the case hardness of forging inner chamber is 56HRC；
5), packaging.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, not
For limiting the present invention, although the present invention being described in detail with reference to previous embodiment,
For a person skilled in the art, it still can be to the skill described in foregoing embodiments
Art scheme is modified, or wherein portion of techniques feature is carried out equivalent.All at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, all should wrap
Within being contained in protection scope of the present invention.
Claims (5)
1. the processing technology of the compression pump clack box of an oil fracturing car, it is characterised in that include
Following steps:
1), compression pump clack box forging blank carries out roughing；
2), normalizing, quenched；
3), polish；
4), firmly nitrogenize
At outer surface and one layer of impermeable coating of all screw thread brushes of compression pump clack box, after coating is dried
Shove charge carries out thermal nitridation process；
5), packaging.
The making work of the compression pump clack box of a kind of oil fracturing car the most as claimed in claim 1
Skill, it is characterised in that described step 4) in the heating-up temperature of hard nitridation be 500～550 DEG C, place
The reason time is 15～70 hours.
The making work of the compression pump clack box of a kind of oil fracturing car the most as claimed in claim 1
Skill, it is characterised in that described step 4) in after hard nitrogen treatment the case hardness of forging inner chamber be
53～58HRC.
The making work of the compression pump clack box of a kind of oil fracturing car the most as claimed in claim 1
Skill, it is characterised in that described step 4) in the depth of nitration of hard nitrogen treatment be 0.5-0.8mm.
The making work of the compression pump clack box of a kind of oil fracturing car the most as claimed in claim 1
Skill, it is characterised in that described step 2) normalizing, quenched include following several step:
(1), normalizing for the first time, supercool
Described first time normalizing is, after the forging of compression pump clack box is heated up to 900～920 DEG C,
Keep this temperature 8～14h；
(2), normalizing for the second time, supercool
Described second time normalizing is, after the forging of compression pump clack box is heated up to 880～900 DEG C,
Keep this temperature 8～14h；
(3), modifier treatment
Quench after forging being heated up to 840～880 DEG C and keeping this temperature 8～14h, by forging
It is tempered after being heated up to 580～640 DEG C and keeping this temperature 12～18h；Described first time mistake
Cold and second time the most supercool is: by air-cooled for forging after 250 DEG C, air cooling is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378846.3A CN106312448B (en) | 2015-07-01 | 2015-07-01 | A kind of manufacture craft of the pressure pump clack box of oil fracturing vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378846.3A CN106312448B (en) | 2015-07-01 | 2015-07-01 | A kind of manufacture craft of the pressure pump clack box of oil fracturing vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106312448A true CN106312448A (en) | 2017-01-11 |
| CN106312448B CN106312448B (en) | 2019-01-25 |
Family
ID=57726716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510378846.3A Expired - Fee Related CN106312448B (en) | 2015-07-01 | 2015-07-01 | A kind of manufacture craft of the pressure pump clack box of oil fracturing vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN106312448B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557723A (en) * | 2017-08-04 | 2018-01-09 | 上海德舒赫金属制品有限公司 | Improve the processing method of mould steel anti-fatigue ability |
| CN109877541A (en) * | 2019-03-25 | 2019-06-14 | 马鞍山旭阳机械有限公司 | A kind of manufacture craft of stainless steel Fracturing Pump Valve Box |
| CN110964883A (en) * | 2019-11-26 | 2020-04-07 | 安徽添御石油设备制造有限公司 | Heat treatment method for petroleum fracturing pump valve box |
| CN111074161A (en) * | 2019-11-26 | 2020-04-28 | 安徽添御石油设备制造有限公司 | Petroleum fracturing pump valve box and machining method thereof |
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| CN103273285A (en) * | 2013-05-29 | 2013-09-04 | 宁波东湖液压传动有限公司 | Method for machining inner gear ring |
| CN203614384U (en) * | 2013-10-12 | 2014-05-28 | 兰州城临石油钻采设备有限公司 | Tufftrided valve box at fluid end of fracturing pump |
| US20140170319A1 (en) * | 2012-12-14 | 2014-06-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Injector for forming films respectively on a stack of wafers |
| CN104493444A (en) * | 2014-12-25 | 2015-04-08 | 苏州敏喆机械有限公司 | Manufacturing process of jacket in PA66 (polyamide 66) component of spinning box body |
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2015
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Patent Citations (7)
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| CN101215670A (en) * | 2007-01-04 | 2008-07-09 | 江苏省交通工程有限公司 | Ship lock mushroom head, mushroom head cap and processing method thereof |
| CN101507981A (en) * | 2009-03-30 | 2009-08-19 | 德阳东佳港机电设备有限公司 | Wire drawing machine drum rim and manufacture technique thereof |
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| CN103273285A (en) * | 2013-05-29 | 2013-09-04 | 宁波东湖液压传动有限公司 | Method for machining inner gear ring |
| CN203614384U (en) * | 2013-10-12 | 2014-05-28 | 兰州城临石油钻采设备有限公司 | Tufftrided valve box at fluid end of fracturing pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557723A (en) * | 2017-08-04 | 2018-01-09 | 上海德舒赫金属制品有限公司 | Improve the processing method of mould steel anti-fatigue ability |
| CN109877541A (en) * | 2019-03-25 | 2019-06-14 | 马鞍山旭阳机械有限公司 | A kind of manufacture craft of stainless steel Fracturing Pump Valve Box |
| CN110964883A (en) * | 2019-11-26 | 2020-04-07 | 安徽添御石油设备制造有限公司 | Heat treatment method for petroleum fracturing pump valve box |
| CN111074161A (en) * | 2019-11-26 | 2020-04-28 | 安徽添御石油设备制造有限公司 | Petroleum fracturing pump valve box and machining method thereof |
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| Publication number | Publication date |
|---|---|
| CN106312448B (en) | 2019-01-25 |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170606 Address after: 242000, Anhui economic and Technological Development Zone, Xuancheng Province Road and the road (Science and technology road) No. 19 Applicant after: Anhui Royal Petroleum Equipment Manufacturing Co., Ltd. Address before: 201600 Shanghai Songjiang District City Maogang town Xinbin road 1469 Lane D District No. 6 Applicant before: SHANGHAI TIANYU PETROLEUM EQUIPMENT TECHNOLOGY CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20210701 |
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| CF01 | Termination of patent right due to non-payment of annual fee |