CN106011623A - Pump shaft material resistant to low temperature and high in strength - Google Patents

Pump shaft material resistant to low temperature and high in strength Download PDF

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Publication number
CN106011623A
CN106011623A CN201610483646.9A CN201610483646A CN106011623A CN 106011623 A CN106011623 A CN 106011623A CN 201610483646 A CN201610483646 A CN 201610483646A CN 106011623 A CN106011623 A CN 106011623A
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CN
China
Prior art keywords
hour
pump shaft
low temperature
speed
powder
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
CN201610483646.9A
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Chinese (zh)
Inventor
颜安
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 FLUID PUMP SYSTEMS Co Ltd
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ANHUI FLUID PUMP SYSTEMS Co Ltd
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Publication date
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Priority to CN201610483646.9A priority Critical patent/CN106011623A/en
Publication of CN106011623A publication Critical patent/CN106011623A/en
Pending legal-status Critical Current

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    • 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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • 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
    • 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
    • C22C38/04—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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
    • 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

Abstract

The invention discloses a pump shaft material resistant to low temperature and high in strength. The pump shaft material resistant to low temperature and high in strength comprises the following chemical elements of carbon, silicon, aluminum, manganese, copper, zinc, arsenic, molybdenum, chromium, titanium, lead, indium, rhodium, and the balance iron and unavoidable impurities. Compared with the prior art, the pump shaft material resistant to low temperature and high in strength has the following advantages that by increasing the content of aluminum, manganese, titanium and rhodium, the state of the iron element is changed, compound particles are formed, and therefore tensile strength is improved; by adding the elements of molybdenum and indium, the alloy material is made to still keep good mechanical properties in a low-temperature environment; due to the use of a refining agent, the rate of finished products can be increased, and production cost is reduced; and pump shafts manufactured from the material disclosed by the invention can be used in the low-temperature environment and have excellent mechanical properties and long service life.

Description

The pump shaft material that a kind of low temperature resistant intensity is high
Technical field
The invention belongs to the ingredients technical field of pump, be specifically related to the pump shaft material that a kind of low temperature resistant intensity is high.
Background technology
The Main Function of pump shaft is transmission power, support impeller to run well in working position amount, pump shaft is during transmission medium, typically require and medium is carried out modifier treatment, the field used along with pump is more and more extensive, the medium carried also gets more and more, therefore the requirement to pump shaft material is more and more higher, although having had great progress before current material is compared, but still suffer from wearing no resistance, hardness is low, rustless property is poor, or the problems such as resistance to low temperature difference, in certain occasion, it is likely to affect the properly functioning of work, cause the loss that some are unnecessary, therefore to pump shaft material, the pump shaft that especially comprehensive performance is strong to be studied further.
Summary of the invention
It is an object of the invention to for existing problem, it is provided that the pump shaft material that a kind of low temperature resistant intensity is high.
The present invention is achieved by the following technical solutions: the pump shaft material that a kind of low temperature resistant intensity is high, containing the chemical element of following percentage by weight: carbon 0.46-0.62%, and silicon 1.6-2%, aluminum 3.4-3.8%, manganese 3.58-6.49%, copper 0.47-0.62%, zinc 0.05-0.08%, arsenic 0.02-0.06%, molybdenum 0.03-0.05%, chromium 1.25-1.5%, titanium 0.001-0.005%, lead 0.002-0.004%, indium 0.04-0.06%, rhodium 0.05-0.12%, surplus is ferrum and inevitable impurity；
The source of described ferrous substrate is: pure iron and the mixture by coal gas-Shaft Furnace Direct Reduction Process gained sponge iron, and mixing quality is than for 3:7 or 4:6；
Its preparation method is: pure iron and sponge iron are put in stove and melted, and carries out desulfurization, after deoxidation, employing refining agent carry out refine, detects and adjust chemical element component content to the most qualified；According to surveyed chemical element, add the mould steel containing corresponding component, after being heated to 500-540 DEG C, be incubated 3-4 hour；After being warming up to 600-650 DEG C with the speed of 120-150 DEG C/h, it is incubated 4-6 hour；After being warming up to 850-900 DEG C with the speed of 160-180 DEG C/h, it is incubated 2-3 hour；Then, after being cooled to 750-800 DEG C with the speed of 60-80 DEG C/h, it is incubated 4-5 hour；It is cooled to 450-500 DEG C with the speed of 140-160 DEG C/h again, keeps 7-8 hour；Then continue cool to room temperature with the speed of 180-200 DEG C/h, after placing 3-6 hour, be warming up to 300-320 DEG C with the speed of 100-120 DEG C/h, be incubated 1-2 hour, then naturally cool to room temperature and get final product.
As further improvement of these options, the product property of described sponge iron is: total iron content is 93.5%, and degree of metalization reaches 95.2%, and carbon content is 1.2-1.5%.
As further improvement of these options, described refining agent is made up of the raw material of following weight portion: Paligorskite powder 30-35 part, calcium carbide powder 15-20 part, tyre talc 12-18 part, sodium thiosulfate 10-15 part, tin ash 8-12 part, Polymeric sodium metaphosphate. 5-10 part, carborundum 2-3 part, lithium carbonate 1-2 part；
The preparation method of refining agent is:
(1) remaining raw material in addition to Paligorskite powder is heated to molten condition, after adding pure water Quench, is ground into powder, cross 120-150 mesh sieve, standby；
(2) being dried at a temperature of 180-200 DEG C by Paligorskite powder, grinding to form granularity after cooling is 300-320 mesh powder, standby；
(3), after above-mentioned lay-by material being mixed, under conditions of 16-18MPa, it is pressed into base, then calcines 5-6 hour at a temperature of 700-750 DEG C, after cooling, be ground into 100-120 mesh powder, to obtain final product.
The present invention has the advantage that in the present invention compared to existing technology by increasing aluminum, manganese, titanium, the content of rhodium element, change the state of ferrum element so that it is formed and meet particle, thus increase its tensile strength, add molybdenum, phosphide element, make alloy material still keep preferable mechanical performance, the use of refining agent in low temperature environment, finished product rate can be improved, reduce production cost, can be used in low temperature environment with the made pump shaft of material in the present invention, have the mechanical property of excellence, service life is long.
Detailed description of the invention
Embodiment 1
The pump shaft material that a kind of low temperature resistant intensity is high, containing the chemical element of following percentage by weight: carbon 0.46-0.62%, silicon 1.6-2%, aluminum 3.4-3.8%, manganese 3.58-6.49%, copper 0.47-0.62%, zinc 0.05-0.08%, arsenic 0.02-0.06%, molybdenum 0.03-0.05%, chromium 1.25-1.5%, titanium 0.001-0.005%, lead 0.002-0.004%, indium 0.04-0.06%, rhodium 0.05-0.12%, surplus is ferrum and inevitable impurity；
The source of described ferrous substrate is: pure iron and the mixture by coal gas-Shaft Furnace Direct Reduction Process gained sponge iron, and mixing quality is than for 3:7；
Its preparation method is: pure iron and sponge iron are put in stove and melted, and carries out desulfurization, after deoxidation, employing refining agent carry out refine, detects and adjust chemical element component content to the most qualified；According to surveyed chemical element, add the mould steel containing corresponding component, after being heated to 500-540 DEG C, be incubated 3-4 hour；After being warming up to 600-650 DEG C with the speed of 120-150 DEG C/h, it is incubated 4-6 hour；After being warming up to 850-900 DEG C with the speed of 160-180 DEG C/h, it is incubated 2-3 hour；Then, after being cooled to 750-800 DEG C with the speed of 60-80 DEG C/h, it is incubated 4-5 hour；It is cooled to 450-500 DEG C with the speed of 140-160 DEG C/h again, keeps 7-8 hour；Then continue cool to room temperature with the speed of 180-200 DEG C/h, after placing 3-6 hour, be warming up to 300-320 DEG C with the speed of 100-120 DEG C/h, be incubated 1-2 hour, then naturally cool to room temperature and get final product.
Wherein, the product property of described sponge iron is: total iron content is 93.5%, and degree of metalization reaches 95.2%, and carbon content is 1.2-1.5%.
Wherein, described refining agent is made up of the raw material of following weight portion: Paligorskite powder 30-35 part, calcium carbide powder 15-20 part, tyre talc 12-18 part, sodium thiosulfate 10-15 part, tin ash 8-12 part, Polymeric sodium metaphosphate. 5-10 part, carborundum 2-3 part, lithium carbonate 1-2 part；
The preparation method of refining agent is:
(1) remaining raw material in addition to Paligorskite powder is heated to molten condition, after adding pure water Quench, is ground into powder, cross 120-150 mesh sieve, standby；
(2) being dried at a temperature of 180-200 DEG C by Paligorskite powder, grinding to form granularity after cooling is 300-320 mesh powder, standby；
(3), after above-mentioned lay-by material being mixed, under conditions of 16-18MPa, it is pressed into base, then calcines 5-6 hour at a temperature of 700-750 DEG C, after cooling, be ground into 100-120 mesh powder, to obtain final product.
In the present embodiment, the material mechanical performance when room temperature and low temperature-20 DEG C is as follows:
Project Hot strength (Pa) Yield strength (MPa) Elongation percentage (%) The contraction percentage of area (%) Impact absorbing energy (J) Impact flexibility (J/c) Hardness (HB)
Room temperature 1206 935 14.2 24.9 51.6 64.2 292.4
-20℃ 1035 792 11.5 21.6 42.8 61.8 273.5
Table 1
Embodiment 2
Wherein, pure iron is 4:6 with the weight ratio of sponge iron, and other conditions are identical.
In the present embodiment, the material mechanical performance when room temperature and low temperature-20 DEG C is as follows:
Project Hot strength (Pa) Yield strength (MPa) Elongation percentage (%) The contraction percentage of area (%) Impact absorbing energy (J) Impact flexibility (J/c) Hardness (HB)
Room temperature 1237 948 13.8 25.2 51.2 64.7 293.8
-20℃ 1085 803 11.2 21.9 43.3 62.3 281.6
Table 2.

Claims (3)

1. the pump shaft material that a low temperature resistant intensity is high, it is characterised in that containing the chemical element of following percentage by weight: carbon 0.46-0.62%, silicon 1.6-2%, aluminum 3.4-3.8%, manganese 3.58-6.49%, copper 0.47-0.62%, zinc 0.05-0.08%, arsenic 0.02-0.06%, molybdenum 0.03-0.05%, chromium 1.25-1.5%, titanium 0.001-0.005%, lead 0.002-0.004%, indium 0.04-0.06%, rhodium 0.05-0.12%, surplus is ferrum and inevitable impurity；
The source of described ferrous substrate is: pure iron and the mixture by coal gas-Shaft Furnace Direct Reduction Process gained sponge iron, and mixing quality is than for 3:7 or 4:6；
Its preparation method is: pure iron and sponge iron are put in stove and melted, and carries out desulfurization, after deoxidation, employing refining agent carry out refine, detects and adjust chemical element component content to the most qualified；According to surveyed chemical element, add the mould steel containing corresponding component, after being heated to 500-540 DEG C, be incubated 3-4 hour；After being warming up to 600-650 DEG C with the speed of 120-150 DEG C/h, it is incubated 4-6 hour；After being warming up to 850-900 DEG C with the speed of 160-180 DEG C/h, it is incubated 2-3 hour；Then, after being cooled to 750-800 DEG C with the speed of 60-80 DEG C/h, it is incubated 4-5 hour；It is cooled to 450-500 DEG C with the speed of 140-160 DEG C/h again, keeps 7-8 hour；Then continue cool to room temperature with the speed of 180-200 DEG C/h, after placing 3-6 hour, be warming up to 300-320 DEG C with the speed of 100-120 DEG C/h, be incubated 1-2 hour, then naturally cool to room temperature and get final product.
The pump shaft material that a kind of low temperature resistant intensity the most as claimed in claim 1 is high, it is characterised in that the product property of described sponge iron is: total iron content is 93.5%, and degree of metalization reaches 95.2%, carbon content is 1.2-1.5%.
The pump shaft material that a kind of low temperature resistant intensity the most as claimed in claim 1 is high, it is characterized in that, described refining agent is made up of the raw material of following weight portion: Paligorskite powder 30-35 part, calcium carbide powder 15-20 part, tyre talc 12-18 part, sodium thiosulfate 10-15 part, tin ash 8-12 part, Polymeric sodium metaphosphate. 5-10 part, carborundum 2-3 part, lithium carbonate 1-2 part；Its preparation method is: remaining raw material in addition to Paligorskite powder is heated to molten condition, is ground into powder after adding pure water Quench, crosses 120-150 mesh sieve, standby；Being dried at a temperature of 180-200 DEG C by Paligorskite powder, grinding to form granularity after cooling is 300-320 mesh powder, standby；After above-mentioned lay-by material is mixed, under conditions of 16-18MPa, it is pressed into base, then calcines 5-6 hour at a temperature of 700-750 DEG C, after cooling, be ground into 100-120 mesh powder, to obtain final product.
CN201610483646.9A 2016-06-28 2016-06-28 Pump shaft material resistant to low temperature and high in strength Pending CN106011623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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CN106011623A true CN106011623A (en) 2016-10-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005139485A (en) * 2003-11-05 2005-06-02 Nippon Steel Corp Steel sheet to be hot-formed
JP2012214832A (en) * 2011-03-31 2012-11-08 Jfe Steel Corp Steel for machine structure and method for producing the same
CN103459647A (en) * 2011-03-28 2013-12-18 新日铁住金株式会社 Hot-rolled steel sheet and production method therefor
CN103667942A (en) * 2013-11-14 2014-03-26 安徽荣达阀门有限公司 Wear-resistant medium-carbon steel material for pump shafts and preparation method thereof
CN103667890A (en) * 2013-11-08 2014-03-26 张超 Alloy steel material for pump shaft and preparation method thereof
CN105420456A (en) * 2015-11-10 2016-03-23 宁波市鸿博机械制造有限公司 Manufacturing method for pump shaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005139485A (en) * 2003-11-05 2005-06-02 Nippon Steel Corp Steel sheet to be hot-formed
CN103459647A (en) * 2011-03-28 2013-12-18 新日铁住金株式会社 Hot-rolled steel sheet and production method therefor
JP2012214832A (en) * 2011-03-31 2012-11-08 Jfe Steel Corp Steel for machine structure and method for producing the same
CN103667890A (en) * 2013-11-08 2014-03-26 张超 Alloy steel material for pump shaft and preparation method thereof
CN103667942A (en) * 2013-11-14 2014-03-26 安徽荣达阀门有限公司 Wear-resistant medium-carbon steel material for pump shafts and preparation method thereof
CN105420456A (en) * 2015-11-10 2016-03-23 宁波市鸿博机械制造有限公司 Manufacturing method for pump shaft

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
朱志强等: "《钢分析化学与物理检测》", 30 June 2013, 冶金工业出版社 *
杨双平等: "《直接还原与熔融还原冶金技术》", 30 April 2013, 冶金工业出版社 *

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