CN107791327A - A kind of manufacturing process of water pump shaft - Google Patents

A kind of manufacturing process of water pump shaft Download PDF

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Publication number
CN107791327A
CN107791327A CN201711094936.5A CN201711094936A CN107791327A CN 107791327 A CN107791327 A CN 107791327A CN 201711094936 A CN201711094936 A CN 201711094936A CN 107791327 A CN107791327 A CN 107791327A
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powder
manufacturing process
temperature
water pump
pump shaft
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CN201711094936.5A
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Chinese (zh)
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刘兴满
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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

Abstract

The present invention provides a kind of manufacturing process of water pump shaft, is related to field of metallurgy, manufacturing process is as follows：Iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, intermediate frequency power supply is opened and material in stove is heated to 1600~1650 DEG C, it is steel fused solution one to make its melting；Add sulphur, boron, silicon nitride, cuprous sulfocyanide, antimonous sulfide powder, carbon dust and load mould after being cooled to 240 260 DEG C, be pressed into base, then naturally cool to room temperature, the pressure of compacting is 100 200MPa；The rotating shaft metal crystalline phase that manufacturing process provided by the present invention produces is clear, and tensile property, anti-yield behavior and anti-wear performance are all very good, and product surface is anti-oxidant, the corrosion of resistance to strong acid, and rising-heat contracting-cold rate is small.

Description

A kind of manufacturing process of water pump shaft
Technical field
The present invention relates to field of metallurgy, and in particular to a kind of manufacturing process of water pump shaft.
Background technology
Water pump is the machinery for conveying liquid or being pressurized liquid.It transmits the mechanical energy of prime mover or other external energies Liquid, increase liquid energy, being mainly used to conveying liquid includes water, oil, acid ＆ alkali liquid, emulsion, suspended emulsion and liquid gold Category etc..
Also liquid, admixture of gas and the liquid containing suspended solids can be conveyed.The technical parameter of pump performance has stream Amount, suction, lift, shaft power, water-horse power, efficiency etc.；The classes such as volume water pump, vane pump can be divided into according to different operation principles Type.Displacement pump is to transmit energy using the change of its swept volume of a single chamber；Vane pump is the phase interaction using rotary vane and water For transmitting energy, there are the types such as centrifugal pump, axial-flow pump and mixed-flow pump.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of manufacturing process of water pump shaft, the wear-resisting of rotating shaft is improved The performances such as property, corrosion-resistant, resistance to oxidation.
To realize object above, the present invention is achieved by the following technical programs：A kind of manufacturing process of water pump shaft, Manufacturing process is as follows：
(1) iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, opened Open intermediate frequency power supply and material in stove is heated to 1600~1650 DEG C, it is steel fused solution one to make its melting；Add sulphur, boron, nitridation Silicon, cuprous sulfocyanide, antimonous sulfide powder, carbon dust load mould after being cooled to 240-260 DEG C, are pressed into base, then naturally cold But to room temperature, the pressure of compacting is 100-200MPa；
(2) pressed compact obtained by step (1) is placed in closed sintering furnace and sintered, the temperature-rise period of sintering is to be arrived in room temperature Programming rate between 900 DEG C is 14 DEG C/min, and 30min is incubated at a temperature of 900 DEG C, in 900 DEG C to 1320 DEG C of heating speed Rate is 9 DEG C/min, is incubated 60min at a temperature of 1320 DEG C, and closed sintering furnace pressure is not more than 0.02MPa, furnace atmosphere by Nitrogen and neon press 100:1 ratio composition；
(3) embryo material is heat-treated, process of thermal treatment parameter is：Temperature is heated to 100 DEG C/h of programming rate 250-350 DEG C, then it is heated to 1050-1150 DEG C with 120 DEG C/h of programming rate, after soaking time 3-5h, transition temperature 550- 650 DEG C, soaking time 10-15min, obtain prefabrication；
(4) first air-cooled to 300-400 DEG C of embryo material after step (3) is handled, then with 2-3 DEG C/min cooling rate water It is cooled to room temperature.
Preferably, the element weight percent of the rotating shaft is as follows：Aluminium powder 0.50~0.80%, copper powder 0.20~ 0.40%th, manganese 0.80~1.50%, boron 0.050~0.080%, molybdenum powder 0.10~0.15%, chromium 0.50~0.670%, sulphur cyanogen Sour cuprous 0.01~0.03%, antimonous sulfide powder 0.03~0.06%, carbon dust 0.80~1.25%, sulphur<0.040%th, scandium powder 0.08~0.13%, nanometer titanium dioxide titanium valve 0.07~0.14%, surplus are iron and inevitable impurity.
Preferably, described carbon dust is more than 96% graphite powder or carbon black, and the graphite powder or carbon black ash using carbon content Divide and be less than 1%, at least 95% particle diameter is less than 5 microns.
The invention provides a kind of manufacturing process of water pump shaft, metal crystalline phase is clear, tensile property, anti-yield behavior with And anti-wear performance is all very good, product surface is anti-oxidant, the corrosion of resistance to strong acid, and rising-heat contracting-cold rate is small, will not change original because of processing There is the characteristic of material, therefore the primary characteristic of material can be made full use of and obtain qualified properties of product, and prevent because not When processing method causes the change of property of raw material and the performance of material is reduced because of improper processing method, it is full to avoid Sufficient performance requirement and the material after processing is carried out other processing and the complexity of increased processing.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
In description of the invention, it is also necessary to explanation, unless otherwise clear and definite regulation and limitation, term " setting ", " peace Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection, can be mechanical connection or electrical connection, can be directly connected to or be connected by intermediary, can To be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned The concrete meaning of term in the present invention.
Embodiment 1：
A kind of manufacturing process of water pump shaft, manufacturing process are as follows：
(1) iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, opened Open intermediate frequency power supply and material in stove is heated to 1600~1650 DEG C, it is steel fused solution one to make its melting；Add sulphur, boron, nitridation Silicon, cuprous sulfocyanide, antimonous sulfide powder, carbon dust load mould after being cooled to 240-260 DEG C, are pressed into base, then naturally cold But to room temperature, the pressure of compacting is 100-200MPa；
(2) pressed compact obtained by step (1) is placed in closed sintering furnace and sintered, the temperature-rise period of sintering is to be arrived in room temperature Programming rate between 900 DEG C is 14 DEG C/min, and 30min is incubated at a temperature of 900 DEG C, in 900 DEG C to 1320 DEG C of heating speed Rate is 9 DEG C/min, is incubated 60min at a temperature of 1320 DEG C, and closed sintering furnace pressure is not more than 0.02MPa, furnace atmosphere by Nitrogen and neon press 100:1 ratio composition；
(3) embryo material is heat-treated, process of thermal treatment parameter is：Temperature is heated to 100 DEG C/h of programming rate 250-350 DEG C, then it is heated to 1050-1150 DEG C with 120 DEG C/h of programming rate, after soaking time 3-5h, transition temperature 550- 650 DEG C, soaking time 10-15min, obtain prefabrication；
(4) first air-cooled to 300-400 DEG C of embryo material after step (3) is handled, then with 2-3 DEG C/min cooling rate water It is cooled to room temperature.
Embodiment 2：
A kind of manufacturing process of water pump shaft, manufacturing process are as follows：
(1) iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, opened Open intermediate frequency power supply and material in stove is heated to 1600~1650 DEG C, it is steel fused solution one to make its melting；Add sulphur, boron, nitridation Silicon, cuprous sulfocyanide, antimonous sulfide powder, carbon dust load mould after being cooled to 240-260 DEG C, are pressed into base, then naturally cold But to room temperature, the pressure of compacting is 100-200MPa；
(2) pressed compact obtained by step (1) is placed in closed sintering furnace and sintered, the temperature-rise period of sintering is to be arrived in room temperature Programming rate between 900 DEG C is 14 DEG C/min, and 30min is incubated at a temperature of 900 DEG C, in 900 DEG C to 1320 DEG C of heating speed Rate is 9 DEG C/min, is incubated 60min at a temperature of 1320 DEG C, and closed sintering furnace pressure is not more than 0.02MPa, furnace atmosphere by Nitrogen and neon press 100:1 ratio composition；
(3) embryo material is heat-treated, process of thermal treatment parameter is：Temperature is heated to 100 DEG C/h of programming rate 250-350 DEG C, then it is heated to 1050-1150 DEG C with 120 DEG C/h of programming rate, after soaking time 3-5h, transition temperature 550- 650 DEG C, soaking time 10-15min, obtain prefabrication；
(4) first air-cooled to 300-400 DEG C of embryo material after step (3) is handled, then with 2-3 DEG C/min cooling rate water It is cooled to room temperature.
Preferably, the element weight percent of the rotating shaft is as follows：Aluminium powder 0.50~0.80%, copper powder 0.20~ 0.40%th, manganese 0.80~1.50%, boron 0.050~0.080%, molybdenum powder 0.10~0.15%, chromium 0.50~0.670%, sulphur cyanogen Sour cuprous 0.01~0.03%, antimonous sulfide powder 0.03~0.06%, carbon dust 0.80~1.25%, sulphur<0.040%th, scandium powder 0.08~0.13%, nanometer titanium dioxide titanium valve 0.07~0.14%, surplus are iron and inevitable impurity.
Embodiment 3：
A kind of manufacturing process of water pump shaft, manufacturing process are as follows：
(1) iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, opened Open intermediate frequency power supply and material in stove is heated to 1600~1650 DEG C, it is steel fused solution one to make its melting；Add sulphur, boron, nitridation Silicon, cuprous sulfocyanide, antimonous sulfide powder, carbon dust load mould after being cooled to 240-260 DEG C, are pressed into base, then naturally cold But to room temperature, the pressure of compacting is 100-200MPa；
(2) pressed compact obtained by step (1) is placed in closed sintering furnace and sintered, the temperature-rise period of sintering is to be arrived in room temperature Programming rate between 900 DEG C is 14 DEG C/min, and 30min is incubated at a temperature of 900 DEG C, in 900 DEG C to 1320 DEG C of heating speed Rate is 9 DEG C/min, is incubated 60min at a temperature of 1320 DEG C, and closed sintering furnace pressure is not more than 0.02MPa, furnace atmosphere by Nitrogen and neon press 100:1 ratio composition；
(3) embryo material is heat-treated, process of thermal treatment parameter is：Temperature is heated to 100 DEG C/h of programming rate 250-350 DEG C, then it is heated to 1050-1150 DEG C with 120 DEG C/h of programming rate, after soaking time 3-5h, transition temperature 550- 650 DEG C, soaking time 10-15min, obtain prefabrication；
(4) first air-cooled to 300-400 DEG C of embryo material after step (3) is handled, then with 2-3 DEG C/min cooling rate water It is cooled to room temperature.
Preferably, the element weight percent of the rotating shaft is as follows：Aluminium powder 0.50~0.80%, copper powder 0.20~ 0.40%th, manganese 0.80~1.50%, boron 0.050~0.080%, molybdenum powder 0.10~0.15%, chromium 0.50~0.670%, sulphur cyanogen Sour cuprous 0.01~0.03%, antimonous sulfide powder 0.03~0.06%, carbon dust 0.80~1.25%, sulphur<0.040%th, scandium powder 0.08~0.13%, nanometer titanium dioxide titanium valve 0.07~0.14%, surplus are iron and inevitable impurity.
Preferably, described carbon dust is more than 96% graphite powder or carbon black, and the graphite powder or carbon black ash using carbon content Divide and be less than 1%, at least 95% particle diameter is less than 5 microns.
Rotating shaft metal crystalline phase provided by the invention is clear, and tensile property, anti-yield behavior and anti-wear performance are all very good, Product surface is anti-oxidant, the corrosion of resistance to strong acid, and rising-heat contracting-cold rate is small, will not change the characteristic of original material, therefore energy because of processing Enough make full use of the primary characteristic of material and obtain qualified properties of product, and prevent the raw material caused by improper processing method special The change of property and the performance that material is reduced because of improper processing method, avoid for meet performance requirement and to processing after Material carry out other processing and the complexity of increased processing.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (3)

1. a kind of manufacturing process of water pump shaft, it is characterised in that manufacturing process is as follows：
(1) iron powder, aluminium powder, copper powder, molybdenum powder, vanadium powder, manganese, chromium, nanometer titanium dioxide titanium valve are added into medium-frequency induction furnace, in unlatching Material in stove is heated to 1600~1650 DEG C by frequency power, and it is steel fused solution one to make its melting；Add sulphur, boron, silicon nitride, sulphur Cyanic acid is cuprous, antimonous sulfide powder, carbon dust load mould after being cooled to 240-260 DEG C, is pressed into base, then naturally cools to room Temperature, the pressure of compacting is 100-200MPa；
(2) pressed compact obtained by step (1) is placed in closed sintering furnace and sintered, the temperature-rise period of sintering is to 900 DEG C in room temperature Between programming rate be 14 DEG C/min, be incubated 30min at a temperature of 900 DEG C, 900 DEG C to 1320 DEG C of heating rates be 9 DEG C/min, be incubated 60min at a temperature of 1320 DEG C, closed sintering furnace pressure be not more than 0.02MPa, furnace atmosphere by nitrogen with Neon presses 100:1 ratio composition；
(3) embryo material is heat-treated, process of thermal treatment parameter is：Temperature 250-350 is heated to 100 DEG C/h of programming rate DEG C, then it is heated to 1050-1150 DEG C with 120 DEG C/h of programming rate, after soaking time 3-5h, transition temperature is 550-650 DEG C, is protected Warm time 10-15min, obtains prefabrication；
(4) first air-cooled to 300-400 DEG C of embryo material after step (3) is handled, then with 2-3 DEG C/min cooling rate water cooling extremely Room temperature.
2. the manufacturing process of water pump shaft as claimed in claim 1, it is characterised in that the element weight percent of the rotating shaft It is as follows：Aluminium powder 0.50~0.80%, copper powder 0.20~0.40%, manganese 0.80~1.50%, boron 0.050~0.080%, molybdenum powder 0.10~0.15%, chromium 0.50~0.670%, cuprous sulfocyanide 0.01~0.03%, antimonous sulfide powder 0.03~0.06%, Carbon dust 0.80~1.25%, sulphur<0.040%th, scandium powder 0.08~0.13%, nanometer titanium dioxide titanium valve 0.07~0.14%, surplus For iron and inevitable impurity.
3. the manufacturing process of water pump shaft as claimed in claim 1, it is characterised in that described carbon dust is more than using carbon content 96% graphite powder or carbon black, and the graphite powder or carbon black ash content are less than 1%, at least 95% particle diameter is less than 5 microns.
CN201711094936.5A 2017-11-08 2017-11-08 A kind of manufacturing process of water pump shaft Pending CN107791327A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108716479A (en) * 2018-05-16 2018-10-30 安徽三环水泵有限责任公司 A kind of wear-resisting slush pump pump shaft and preparation method thereof
CN108994549A (en) * 2018-09-28 2018-12-14 北京铂阳顶荣光伏科技有限公司 A kind of manufacturing process of vacuum chamber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103451566A (en) * 2013-08-02 2013-12-18 安徽三联泵业股份有限公司 High-strength stainless steel material for pump shafts and manufacturing method thereof
CN105821326A (en) * 2016-04-28 2016-08-03 昌利锻造有限公司 Powder metallurgy automobile hub
CN106555130A (en) * 2016-12-02 2017-04-05 机械科学研究总院青岛分院 A kind of heat- treated steel alloy
WO2017125147A1 (en) * 2016-01-20 2017-07-27 Thyssenkrupp Steel Europe Ag Flat steel product and method for the production thereof
CN107267851A (en) * 2017-06-20 2017-10-20 合肥尚涵装饰工程有限公司 A kind of manufacturing process of bearing insert

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103451566A (en) * 2013-08-02 2013-12-18 安徽三联泵业股份有限公司 High-strength stainless steel material for pump shafts and manufacturing method thereof
WO2017125147A1 (en) * 2016-01-20 2017-07-27 Thyssenkrupp Steel Europe Ag Flat steel product and method for the production thereof
CN105821326A (en) * 2016-04-28 2016-08-03 昌利锻造有限公司 Powder metallurgy automobile hub
CN106555130A (en) * 2016-12-02 2017-04-05 机械科学研究总院青岛分院 A kind of heat- treated steel alloy
CN107267851A (en) * 2017-06-20 2017-10-20 合肥尚涵装饰工程有限公司 A kind of manufacturing process of bearing insert

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108716479A (en) * 2018-05-16 2018-10-30 安徽三环水泵有限责任公司 A kind of wear-resisting slush pump pump shaft and preparation method thereof
CN108994549A (en) * 2018-09-28 2018-12-14 北京铂阳顶荣光伏科技有限公司 A kind of manufacturing process of vacuum chamber

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