CN106756483A - A kind of half-opened impeller blade of centrifugal pump - Google Patents

A kind of half-opened impeller blade of centrifugal pump Download PDF

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Publication number
CN106756483A
CN106756483A CN201611143342.4A CN201611143342A CN106756483A CN 106756483 A CN106756483 A CN 106756483A CN 201611143342 A CN201611143342 A CN 201611143342A CN 106756483 A CN106756483 A CN 106756483A
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CN
China
Prior art keywords
impeller blade
centrifugal pump
green body
crude green
opened impeller
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
CN201611143342.4A
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Chinese (zh)
Inventor
潘耀东
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.)
ANHUI NANFANG CHEMICAL PUMP MANUFACTURE Co Ltd
Original Assignee
ANHUI NANFANG CHEMICAL PUMP MANUFACTURE 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 ANHUI NANFANG CHEMICAL PUMP MANUFACTURE Co Ltd filed Critical ANHUI NANFANG CHEMICAL PUMP MANUFACTURE Co Ltd
Priority to CN201611143342.4A priority Critical patent/CN106756483A/en
Publication of CN106756483A publication Critical patent/CN106756483A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C22C33/06—Making ferrous alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a kind of half-opened impeller blade of centrifugal pump, it is made up of following component by mass percentage：The 6.5wt% of silicon 1.2, the 0.15wt% of chromium 0.11, the 1.0wt% of nickel 0.3, the 1.5wt% of zinc 0.5, the 2.5wt% of copper 1.2, the 0.3wt% of manganese 0.2, remaining is iron and inevitable impurity.By the process of optimized alloy melting, while using the method for first water quenching oil quenching again, then coordinate lonneal, and the residual stress produced when crude green body quenches can be eliminated, prevent from deforming and ftracture, its hardness, intensity are adjusted, improve its processing characteristics.A kind of half-opened impeller blade of the centrifugal pump provided by experiment, the inventive method, with good corrosion resistance, and meanwhile it is easy to process, it is obtained and promotes the use of.

Description

A kind of half-opened impeller blade of centrifugal pump
Technical field
The invention belongs to pump technical field is centrifuged, and in particular to a kind of half-opened impeller blade of centrifugal pump.
Background technology
Centrifugal pump is a kind of centrifugal force produced when being rotated by impeller conveys the pump of liquid, is that a kind of important chemical industry sets It is standby, and impeller, used as the core of centrifugal pump, impeller blade plays Main Function again, it is necessary to blade has corrosion-resistant, interior appearance The smooth excellent in performance in face.
The content of the invention
In order to overcome problem above, the invention provides a kind of half-opened impeller blade of centrifugal pump.
The present invention is achieved through the following technical solutions：
A kind of half-opened impeller blade of centrifugal pump, is made up of following component by mass percentage：Silicon 1.2-6.5wt%, chromium 0.11-0.15wt%, nickel 0.3-1.0wt%, zinc 0.5-1.5wt%, copper 1.2-2.5wt%, manganese 0.2-0.3wt%, remaining is for iron and not Evitable impurity.Its preparation method includes：
（1）Mild steel, ferrosilicon, ferrochrome, ferronickel, ferromanganese are positioned over 1480 DEG C, insulation 60 are heated in vacuum medium frequency induction furnace Minute, the complete melting mixing of material is treated, zinc ingot metal, copper ingot are added, temperature is improved to 1550 DEG C, continue to be incubated 30 minutes；
（2）The alloy of melting is poured using mould, impeller blade crude green body is obtained, treats that crude green body temperature is cooled to 780-850 DEG C, used After water quenching 2 seconds, the quenching of conversion fluid is until crude green body is cooled to room temperature；
（3）Crude green body after quenching is again heated into 195-225 DEG C carries out tempering operation；
（4）Crude green body is finish-machined to a kind of half-opened impeller blade of centrifugal pump using machining center.
Further, a kind of half-opened impeller blade of centrifugal pump, is made up of following component by mass percentage：Silicon 2.9wt%, chromium 0.13wt%, nickel 0.8wt%, zinc 1.0wt%, copper 1.5wt%, manganese 0.3wt%, remaining be iron and inevitably it is miscellaneous Matter.
Further, step（2）The fluid, mass parts are pressed by PAG quenching mediums, soybean oil, rapeseed oil, kerosene, machine oil Number compares 10:1:2:30:50 mix.
Beneficial effects of the present invention：By the process of optimized alloy melting, first by mild steel, ferrosilicon, ferrochrome, ferronickel, manganese Iron is positioned over melting in vacuum medium frequency induction furnace, adds zinc ingot metal, copper ingot, by experimental verification, can further improve alloy Intensity and corrosion resistance, meanwhile, using the method for first water quenching oil quenching again, hardenability and quenching degree are effectively improved, while preventing Problems of crack caused by cooling velocity is too fast, then coordinate lonneal, can eliminate the residual produced when crude green body quenches should Power, prevents from deforming and ftractures, and adjusts its hardness, intensity, improves its processing characteristics.By experiment, the inventive method is carried A kind of half-opened impeller blade of the centrifugal pump for supplying, with good corrosion resistance, and meanwhile it is easy to process, it is obtained and promotes the use of.
Specific embodiment
Embodiment 1
A kind of half-opened impeller blade of centrifugal pump, is made up of following component by mass percentage：Silicon 1.2wt%, chromium 0.11wt%, Nickel 0.3wt%, zinc 0.5wt%, copper 1.2wt%, manganese 0.2wt%, remaining is iron and inevitable impurity.Its preparation method includes：
（1）Mild steel, ferrosilicon, ferrochrome, ferronickel, ferromanganese are positioned over 1480 DEG C, insulation 60 are heated in vacuum medium frequency induction furnace Minute, the complete melting mixing of material is treated, zinc ingot metal, copper ingot are added, temperature is improved to 1550 DEG C, continue to be incubated 30 minutes；
（2）The alloy of melting is poured using mould, impeller blade crude green body is obtained, treats that crude green body temperature is cooled to 780-850 DEG C, used After water quenching 2 seconds, the quenching of conversion fluid is until crude green body is cooled to room temperature；
（3）Crude green body after quenching is again heated into 195-225 DEG C carries out tempering operation, can eliminate what is produced when crude green body quenches Residual stress, prevents from deforming and ftractures, and adjusts its hardness, intensity, improves its processing characteristics；
（4）Crude green body is finish-machined to a kind of half-opened impeller blade of centrifugal pump using machining center, being capable of effective guarantee Its machining accuracy, makes blade surfaces externally and internally smooth.
Further, step（2）The fluid, mass parts are pressed by PAG quenching mediums, soybean oil, rapeseed oil, kerosene, machine oil Number compares 10:1:2:30:50 mix.
Embodiment 2
A kind of half-opened impeller blade of centrifugal pump, is made up of following component by mass percentage：Silicon 6.5wt%, chromium 0.15wt%, Nickel 1.0wt%, zinc 1.5wt%, copper 2.5wt%, manganese 0.3wt%, remaining is iron and inevitable impurity.Its preparation method includes：
（1）Mild steel, ferrosilicon, ferrochrome, ferronickel, ferromanganese are positioned over 1480 DEG C, insulation 60 are heated in vacuum medium frequency induction furnace Minute, the complete melting mixing of material is treated, zinc ingot metal, copper ingot are added, temperature is improved to 1550 DEG C, continue to be incubated 30 minutes；
（2）The alloy of melting is poured using mould, impeller blade crude green body is obtained, treats that crude green body temperature is cooled to 780-850 DEG C, used After water quenching 2 seconds, the quenching of conversion fluid is until crude green body is cooled to room temperature；
（3）Crude green body after quenching is again heated into 195-225 DEG C carries out tempering operation, can eliminate what is produced when crude green body quenches Residual stress, prevents from deforming and ftractures, and adjusts its hardness, intensity, improves its processing characteristics；
（4）Crude green body is finish-machined to a kind of half-opened impeller blade of centrifugal pump using machining center, being capable of effective guarantee Its machining accuracy, makes blade surfaces externally and internally smooth.
Further, step（2）The fluid, mass parts are pressed by PAG quenching mediums, soybean oil, rapeseed oil, kerosene, machine oil Number compares 10:1:2:30:50 mix.
Embodiment 3
A kind of half-opened impeller blade of centrifugal pump, is made up of following component by mass percentage：Silicon 2.9wt%, chromium 0.13wt%, Nickel 0.8wt%, zinc 1.0wt%, copper 1.5wt%, manganese 0.3wt%, remaining is iron and inevitable impurity.Its preparation method includes：
（1）Mild steel, ferrosilicon, ferrochrome, ferronickel, ferromanganese are positioned over 1480 DEG C, insulation 60 are heated in vacuum medium frequency induction furnace Minute, the complete melting mixing of material is treated, zinc ingot metal, copper ingot are added, temperature is improved to 1550 DEG C, continue to be incubated 30 minutes；
（2）The alloy of melting is poured using mould, impeller blade crude green body is obtained, treats that crude green body temperature is cooled to 780-850 DEG C, used After water quenching 2 seconds, the quenching of conversion fluid is until crude green body is cooled to room temperature；
（3）Crude green body after quenching is again heated into 195-225 DEG C carries out tempering operation, can eliminate what is produced when crude green body quenches Residual stress, prevents from deforming and ftractures, and adjusts its hardness, intensity, improves its processing characteristics；
（4）Crude green body is finish-machined to a kind of half-opened impeller blade of centrifugal pump using machining center, being capable of effective guarantee Its machining accuracy, makes blade surfaces externally and internally smooth.
Further, step（2）The fluid, mass parts are pressed by PAG quenching mediums, soybean oil, rapeseed oil, kerosene, machine oil Number compares 10:1:2:30:50 mix.
Comparative example 1
This comparative example 1 compared with Example 1, removes copper removal and zinc, method and step all same in addition.
Comparative example 2
This comparative example 2 compared with Example 2, removes silicon, chromium, nickel, manganese, method and step all same in addition.
Comparative example 3
This comparative example 3 compared with Example 3, step（1）Take in all material addition vacuum medium frequency induction furnace simultaneously The method of heating, method and step all same in addition.
Control group
The half-opened impeller blade of existing centrifugal pump.
By embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3, control group The 7 kinds of blades for providing determine its corrosion resistance using electrochemical process, count 24 hours rates of corrosion of rear blade, as a result such as table 1：
Table 1
Rate of corrosion（%）
Embodiment 1 0.8
Embodiment 2 0.6
Embodiment 3 0.6
Comparative example 1 1.9
Comparative example 2 5.6
Comparative example 3 4.0
Control group 3.9
As shown in Table 1, the half-opened impeller blade of a kind of centrifugal pump for being provided using the inventive method, by experiment, blade tool There is good corrosion resistance, be worth of widely use.

Claims (4)

1. the half-opened impeller blade of a kind of centrifugal pump, it is characterised in that be made up of following component by mass percentage：Silicon 1.2- 6.5wt%, chromium 0.11-0.15wt%, nickel 0.3-1.0wt%, zinc 0.5-1.5wt%, copper 1.2-2.5wt%, manganese 0.2-0.3wt%, its Yu Weitie and inevitable impurity.
2. the half-opened impeller blade of a kind of centrifugal pump according to claim 1, it is characterised in that：By mass percentage by Following component composition：Silicon 2.9wt%, chromium 0.13wt%, nickel 0.8wt%, zinc 1.0wt%, copper 1.5wt%, manganese 0.3wt%, remaining is iron And inevitable impurity.
3. a kind of preparation method of the half-opened impeller blade of centrifugal pump according to claim 1, it is characterised in that including Following steps：
（1）Mild steel, ferrosilicon, ferrochrome, ferronickel, ferromanganese are positioned over 1480 DEG C, insulation 60 are heated in vacuum medium frequency induction furnace Minute, the complete melting mixing of material is treated, zinc ingot metal, copper ingot are added, temperature is improved to 1550 DEG C, continue to be incubated 30 minutes；
（2）The alloy of melting is poured using mould, impeller blade crude green body is obtained, treats that crude green body temperature is cooled to 780-850 DEG C, used After water quenching 2 seconds, the quenching of conversion fluid is until crude green body is cooled to room temperature；
（3）Crude green body after quenching is again heated into 195-225 DEG C carries out tempering operation；
（4）Crude green body is finish-machined to a kind of half-opened impeller blade of centrifugal pump using machining center.
4. the preparation method of the half-opened impeller blade of a kind of centrifugal pump according to claim 3, it is characterised in that：Step （2）The fluid, quality parts ratio 10 is pressed by PAG quenching mediums, soybean oil, rapeseed oil, kerosene, machine oil:1:2:30:50 mixing and Into.
CN201611143342.4A 2016-12-13 2016-12-13 A kind of half-opened impeller blade of centrifugal pump Pending CN106756483A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108149079A (en) * 2017-12-08 2018-06-12 安徽银龙泵阀股份有限公司 A kind of centrifugal pump impeller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008280608A (en) * 2007-04-13 2008-11-20 Jfe Steel Kk High-strength hot-dip galvanized steel sheet excellent in workability and weldability, and its manufacturing method
CN103667862A (en) * 2013-11-08 2014-03-26 张超 Tough high-carbon steel material for centrifugal pump blades and preparation method thereof
CN104032209A (en) * 2013-03-08 2014-09-10 Lg电子株式会社 Cam ring of vane pump and method of manufacturing cam ring
CN105102161A (en) * 2013-01-25 2015-11-25 吉凯恩粉末冶金工程有限公司 Method for producing vane for rotary vane pump, vane for rotary vane pump and rotary vane pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008280608A (en) * 2007-04-13 2008-11-20 Jfe Steel Kk High-strength hot-dip galvanized steel sheet excellent in workability and weldability, and its manufacturing method
CN105102161A (en) * 2013-01-25 2015-11-25 吉凯恩粉末冶金工程有限公司 Method for producing vane for rotary vane pump, vane for rotary vane pump and rotary vane pump
CN104032209A (en) * 2013-03-08 2014-09-10 Lg电子株式会社 Cam ring of vane pump and method of manufacturing cam ring
CN103667862A (en) * 2013-11-08 2014-03-26 张超 Tough high-carbon steel material for centrifugal pump blades and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108149079A (en) * 2017-12-08 2018-06-12 安徽银龙泵阀股份有限公司 A kind of centrifugal pump impeller

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Application publication date: 20170531