CN103753154A - Method for machining stainless steel sewage pump impeller - Google Patents

Method for machining stainless steel sewage pump impeller Download PDF

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Publication number
CN103753154A
CN103753154A CN201410038941.4A CN201410038941A CN103753154A CN 103753154 A CN103753154 A CN 103753154A CN 201410038941 A CN201410038941 A CN 201410038941A CN 103753154 A CN103753154 A CN 103753154A
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CN
China
Prior art keywords
impeller
stainless steel
press
cover plate
welding
Prior art date
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.)
Pending
Application number
CN201410038941.4A
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Chinese (zh)
Inventor
童合营
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HX MACHINE (SHANGHAI) Co Ltd
Original Assignee
HX MACHINE (SHANGHAI) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HX MACHINE (SHANGHAI) Co Ltd filed Critical HX MACHINE (SHANGHAI) Co Ltd
Priority to CN201410038941.4A priority Critical patent/CN103753154A/en
Publication of CN103753154A publication Critical patent/CN103753154A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/006Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels

Abstract

The invention discloses a method for machining a stainless steel sewage pump impeller. According to the machining technology, the method includes the following steps that step1, impeller blades, an upper cover plate and a lower cover plate are formed in a punching mode, and integral forming between the impeller blades, the upper cover plate and the lower cover plate is performed through the combination of a hydraulic machine and a punching die; step2, impeller welding: the impeller blades, the upper cover plate and the lower cover plate are welded through a welding machine, wherein the impeller blades, the upper cover plate and the lower cover plate are formed in the punching mode; step3, acid pickling and passivation are performed on the welded impeller; step4, the passivated impeller is washed through a washing machine; step5, air drying is performed on the impeller. The method has the advantages that the punching assembly and welding forming are adopted, so that the method is high in product quality, good in uniformity, short in manufacturing period, few in machining process, high in machining efficiency, free of pollution in the production process, high in operation efficiency of a water pump, high in corrosion resistant capacity and long in service life and saves consumable items.

Description

A kind of processing method of stainless steel blowdown pump impeller
Technical field
The present invention relates to a kind of sewage water discharge impeller of pump in plumbing field, particularly a kind of disposable punch forming processing technology of stainless steel sewage water discharge impeller of pump.
Background technology
Sewage water discharge pump is the liquid for carrying raw sewage rainwater, ight soil or containing the solids such as fiber, paper scrap, fruit, and the temperature that is conventionally transferred medium is not more than 80 ℃, is present requisite urban sewage device.Impeller is to the liquid in the pump housing or medium power the power-conversion of motor, thereby reach the place that liquid or medium can be transported to pipeline or need from the pump housing, so the vitals in vane type sewage water discharge pump, the quality of its quality directly has influence on service life and the operating efficiency of dredge pump.
At present, on market sewage water discharge impeller of pump by by the moulding of model foundry casting, except pollute large, there is casting flaw in inevitable foundry goods, as the crackle producing in casting process, hole, loose, sand holes, misrun etc.There is following defect in this processing method: first, impeller surface is coarse, and the fineness on surface directly affects pump efficiency, and transfer efficiency is low, thereby cannot guarantee single-casting quality and efficiency; Secondly, in process of production, need to cast founding, sand removal deburring, Ageing Treatment, machining, antirust processing five processes, operation is various, and working (machining) efficiency is low; Again, the dust in casting process, sand removal process, machining process, antirust processing procedure, sewage all can be to environment; Finally, corrosion resistance is not strong, owing to adding the reasons such as medicine or water quality before pump, makes impeller severe deposits or corrosion, has reduced the ability to work of impeller.
Summary of the invention
For the defect existing in existing sewage water discharge impeller of pump processing method, the invention provides a kind of processing method of stainless steel blowdown pump impeller.
To achieve these goals, the technical solution used in the present invention is:
A processing method for stainless steel blowdown pump impeller, processing technology comprises the following steps: the first step, impeller blade and upper and lower cover plates punch forming, combine by hydraulic press and diel the global formation that carries out impeller blade and upper and lower cover plates; Second step, impeller welding, welds stamping forming impeller blade and upper and lower cover plates by bonding machine; The 3rd step, the impeller that butt welding connects carries out acid wash passivation; The 4th step, adopts the impeller of cleaning machine after to passivation to clean; The 5th step, air-dry impeller;
In the described first step, comprise successively mould location, place bar section of stainless steel and smear drawing oil, punching press and automatic piece unloading operation;
In the described first step, the tonnage of hydraulic press is 500T, hydraulic pressure 15mpa, and initial press stroke is 120mm;
Bonding machine in described second step is the argon arc welding machine of welding current 85A, speed of welding 1.2m/min;
The passivation time of described the 3rd step is 5 minutes;
Described mould positioning process comprises: on press sliding panel, by the fixing dynamic model of positioning tie bar level, the gap on press bed between the fixing cover half of level, adjustment dynamic model and cover half, adjustment press travel distance, fastening mould, press sliding panel, reset, adjust the nitrogen spring pressure on stripper and location-plate;
Described nitrogen spring pressure is 2T, and stroke distances is 6mm.
Beneficial effect of the present invention: manufacture course of products is pollution-free, product quality is high, and high conformity adopts the moulding of punching press assembly welding, and bulk article single-piece quality is reached unanimously, meets the technical requirement of design; Manufacturing cycle is short, and the average used time of conventional Mechanical processing of casting manufacturing cycle reduces 4/5ths, and conventional castings production needs to complete product in 5 days, adopts this technology can complete for 1 day; Save consumptive material, material consumption reduces 3/4ths compared with routine casting material, and single model conventional products weight is at 2.8 kilograms, and this product weight only needs 0.5 kilogram; Manufacturing procedure is few, improves working (machining) efficiency, only needs punching press one-shot forming and assembly welding to complete integral structure component two procedures, does not need in production process, to cast founding, sand removal deburring, Ageing Treatment, machining, the processing of antirust processing five processes routinely; Production process non-environmental-pollution; The average water pump efficiency that improves is more than 2%, and life increases by 5 times compared with foundry goods, and corrosion resistance is strong, can corrosion.
The specific embodiment
A processing method for stainless steel blowdown pump impeller, processing technology comprises the following steps: the first step, impeller blade and upper and lower cover plates punch forming, combine by hydraulic press and diel the global formation that carries out impeller blade and upper and lower cover plates; Second step, impeller welding, welds stamping forming impeller blade and upper and lower cover plates by bonding machine; The 3rd step, the impeller that butt welding connects carries out acid wash passivation; The 4th step, adopts the impeller of cleaning machine after to passivation to clean; The 5th step, air-dry impeller.
Under normal temperature condition, utilize 500T hydraulic press and diel combination, press Stroke Control is at 120mm, and hydraulic pressure is 15mpa.During punching press, first mould is located, dynamic model, by positioning tie bar, is horizontally fixed on press sliding panel, and cover half is horizontally fixed on press bed, and pressure gait of march is 1m/min, does not first place material, starts press, adjusts the gap between dynamic model and cover half; After adjustment, then adjust press travel distance, press travel switch is set in to the position needing, close press, complete fastening mould; Start press, press sliding panel is resetted, close press, the nitrogen spring pressure on stripper, location-plate is adjusted to 2T, stroke distances is 6mm, and mould location has been adjusted like this.Place material, smear drawing oil, start press and start press work; After press punching press puts in place, press travel switch keeps positioning states, continues 1min, and press slide plate resets, and mold returning version ejects molding structure part, and a punching press completes, and again places material and carries out punching press.Stamping forming upper and lower cover plates and blade pass are crossed to argon arc welding machine and weld, welding current is 85A, and speed of welding is 1.2m/min, has welded acid wash passivation, after 5 minutes, with cleaning machine, cleans up, and places air-dry district air-dry, and such impeller completes.
Beneficial effect of the present invention: product quality is high, high conformity, adopts the moulding of punching press assembly welding, and bulk article single-piece quality is reached unanimously, meets the technical requirement of design; Manufacturing cycle is short, and the average used time of conventional Mechanical processing of casting manufacturing cycle reduces 4/5ths, and conventional castings production needs to complete product in 5 days, adopts this technology can complete for 1 day; Save consumptive material, material consumption reduces 3/4ths compared with routine casting material, and single model conventional products weight is at 2.8 kilograms, and this product weight only needs 0.5 kilogram; Manufacturing procedure is few, improves working (machining) efficiency, only needs punching press one-shot forming and assembly welding to complete integral structure component two procedures, does not need in production process, to cast founding, sand removal deburring, Ageing Treatment, machining, the processing of antirust processing five processes routinely; Production process non-environmental-pollution; The average water pump efficiency that improves is more than 2%, and life increases by 5 times compared with foundry goods, and corrosion resistance is strong, can corrosion.
The simple replacement of those ordinary skill in the art and replacing are all within this patent protection domain.

Claims (7)

1. a processing method for stainless steel blowdown pump impeller, is characterized in that, processing technology comprises the following steps: the first step, and impeller blade and upper and lower cover plates punch forming, combine by hydraulic press and diel the global formation that carries out impeller blade and upper and lower cover plates; Second step, impeller welding, welds stamping forming impeller blade and upper and lower cover plates by bonding machine; The 3rd step, the impeller that butt welding connects carries out acid wash passivation; The 4th step, adopts the impeller of cleaning machine after to passivation to clean; The 5th step, air-dry impeller.
2. the processing method of a kind of stainless steel blowdown pump impeller according to claim 1, is characterized in that, comprises successively mould location, places bar section of stainless steel and smear drawing oil, punching press and automatic piece unloading operation in the described first step.
3. the processing method of a kind of stainless steel blowdown pump impeller according to claim 1 and 2, is characterized in that, in the described first step, the tonnage of hydraulic press is 500T, hydraulic pressure 15mpa, and initial press stroke is 120mm.
4. the processing method of a kind of stainless steel blowdown pump impeller according to claim 1, is characterized in that, the bonding machine in described second step is the argon arc welding machine of welding current 85A, speed of welding 1.2m/min.
5. the processing method of a kind of stainless steel blowdown pump impeller according to claim 1, is characterized in that, the passivation time of described the 3rd step is 5 minutes.
6. the processing method of a kind of stainless steel blowdown pump impeller according to claim 2, it is characterized in that, described mould positioning process comprises: on press sliding panel, by the fixing dynamic model of positioning tie bar level, the gap on press bed between the fixing cover half of level, adjustment dynamic model and cover half, adjustment press travel distance, fastening mould, press sliding panel, reset, adjust the nitrogen spring pressure on stripper and location-plate.
7. the processing method of a kind of stainless steel blowdown pump impeller according to claim 6, is characterized in that, described nitrogen spring pressure is 2T, and stroke distances is 6mm.
CN201410038941.4A 2014-01-23 2014-01-23 Method for machining stainless steel sewage pump impeller Pending CN103753154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410038941.4A CN103753154A (en) 2014-01-23 2014-01-23 Method for machining stainless steel sewage pump impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410038941.4A CN103753154A (en) 2014-01-23 2014-01-23 Method for machining stainless steel sewage pump impeller

Publications (1)

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CN103753154A true CN103753154A (en) 2014-04-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181270A (en) * 2016-08-26 2016-12-07 常州索拉尔熔盐泵阀科技有限公司 The preparation method of pump for liquid salts combination type blade wheel
CN106826140A (en) * 2017-04-13 2017-06-13 苏州三和仪器有限公司 A kind of machining manufacture of impeller of high-speed fan
CN113482102A (en) * 2021-07-22 2021-10-08 德诺尔流体设备(武汉)有限公司 Integrated pump station rotational flow hydraulic forming automatic dredging base

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CN1138670A (en) * 1996-03-26 1996-12-25 阳江市不锈钢冲压泵有限公司 Press moulding centrifugal pump and its mfg. method
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CN101749275A (en) * 2008-12-18 2010-06-23 阳江市新力工业有限公司 Stamping-welded centrifugal pump with improved structure
CN201705682U (en) * 2009-11-26 2011-01-12 江苏国泉泵业制造有限公司 Vertical sewage pump adopting stainless steel stamped impeller
KR20120076890A (en) * 2010-12-30 2012-07-10 (주)세왕섬유 Pump system for liquid mixed with solid bodies and method for control thereof
CN103438007A (en) * 2013-06-08 2013-12-11 广东永力泵业有限公司 Stamping and welding submersible sewage pump

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CN1138670A (en) * 1996-03-26 1996-12-25 阳江市不锈钢冲压泵有限公司 Press moulding centrifugal pump and its mfg. method
CN200946590Y (en) * 2006-07-27 2007-09-12 上海凯泉泵业(集团)有限公司 Stainless steel stamping and welding impeller
CN101749275A (en) * 2008-12-18 2010-06-23 阳江市新力工业有限公司 Stamping-welded centrifugal pump with improved structure
CN201705682U (en) * 2009-11-26 2011-01-12 江苏国泉泵业制造有限公司 Vertical sewage pump adopting stainless steel stamped impeller
KR20120076890A (en) * 2010-12-30 2012-07-10 (주)세왕섬유 Pump system for liquid mixed with solid bodies and method for control thereof
CN103438007A (en) * 2013-06-08 2013-12-11 广东永力泵业有限公司 Stamping and welding submersible sewage pump

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181270A (en) * 2016-08-26 2016-12-07 常州索拉尔熔盐泵阀科技有限公司 The preparation method of pump for liquid salts combination type blade wheel
CN106181270B (en) * 2016-08-26 2018-06-08 常州索拉尔熔盐泵阀科技有限公司 The preparation method of pump for liquid salts combination type blade wheel
CN106826140A (en) * 2017-04-13 2017-06-13 苏州三和仪器有限公司 A kind of machining manufacture of impeller of high-speed fan
CN106826140B (en) * 2017-04-13 2019-01-11 苏州三和仪器有限公司 A kind of machining manufacture of impeller of high-speed fan
CN113482102A (en) * 2021-07-22 2021-10-08 德诺尔流体设备(武汉)有限公司 Integrated pump station rotational flow hydraulic forming automatic dredging base

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Application publication date: 20140430