CN106834912A - A kind of wear-resistant railway switch cast steel preparation method - Google Patents

A kind of wear-resistant railway switch cast steel preparation method Download PDF

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Publication number
CN106834912A
CN106834912A CN201611010078.7A CN201611010078A CN106834912A CN 106834912 A CN106834912 A CN 106834912A CN 201611010078 A CN201611010078 A CN 201611010078A CN 106834912 A CN106834912 A CN 106834912A
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railway switch
temperature
risen
wear
cast steel
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夏明星
王卫远
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Maanshan Yinding Machinery Manufacturing Co Ltd
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Maanshan Yinding Machinery Manufacturing Co Ltd
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Priority to CN201611010078.7A priority Critical patent/CN106834912A/en
Publication of CN106834912A publication Critical patent/CN106834912A/en
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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
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
    • 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
    • C22C38/18—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
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/08—Halogenated waxes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/48—Slushing oils

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
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Abstract

The invention discloses a kind of wear-resistant railway switch cast steel preparation method, following processing step is included：Cast flange blank, each alloying component of the flange blank and percentage by weight are：C0.7 ~ 0.9%, Si0.4 ~ 0.8%, Mn0.6 ~ 0.7%, P 0.012% ~ 0.022%, S≤0.035%, Cr1.6 ~ 2.2%, Pb0.04 ~ 0.08%, W0.15 ~ 0.21%, V0.05 ~ 0.11%, Ni0.35 ~ 0.45%, Ti0.3 ~ 0.4%, Nb0.08 ~ 0.15%, Zr0.03 ~ 0.08%, balance of aluminium；Workpiece surface anti-corrosive technology of the present invention is simpler rationally, and technique further improves realization, its bulk strength and wearability is further improved, and improves the protective effect to metal.

Description

A kind of wear-resistant railway switch cast steel preparation method
Technical field
The present invention relates to cast steel field, a kind of wear-resistant railway switch cast steel preparation method is particularly belonged to.
Background technology
Railway casting is the part of rail track, and track referred herein includes rail, sleeper, links part, road Bed, anti-creep equipment, rail brace and track switch etc..Used as a globality engineering structure, track laying plays train fortune on roadbed Capable guide effect, directly bears the immense pressure of rolling stock and its load.Railway switch manufacturing process of the prior art In, because technological design is unreasonable in smelting, casting process, influence its overall performance.
The content of the invention
It is an object of the invention to provide a kind of wear-resistant railway switch cast steel preparation method, workpiece surface anti-corrosive technology is more Plus advantages of simple, technique further improves realization, its bulk strength and wearability is further improved, and improves the guarantor to metal Shield is acted on.
Technical scheme is as follows：
A kind of wear-resistant railway switch cast steel preparation method, includes following processing step：
1）, cast railway switch blank, each alloying component of railway switch blank and percentage by weight are：C2.65 ~ 2.95%, Si1.4 ~ 1.8%, Mo0.8 ~ 0.9%, P≤0.012%, S≤0.025%, Cr1.2 ~ 1.4%, W0.25 ~ 0.35%, V0.06 ~ 0.12%, Ni0.25 ~ 0.35%, Ti0.12 ~ 0.22%, Nb0.18 ~ 0.25%, Zn0.03 ~ 0.08%, balance of iron；
2）First washed with the potassium phosphate solution that mass concentration is 20-32%, 40-50 DEG C of washing temperature, washing time 30- 40min, the railway switch blank after washing is dried in being placed on programmable baking oven, and temperature is risen into 350 DEG C, used time from 300 DEG C 60-70s；Temperature is risen into 500 DEG C, used time 50-70s from 450 DEG C；Temperature is risen into 570 DEG C, used time 30- from 500 DEG C again 50s；Temperature is finally risen to 650 DEG C from 570 DEG C, used time 40-80s, then rapid air cooling；
3）Antirust treatment：Track switch after air cooling soaks 15-25min in placing into antirust oil, and the antirust oil is pressed by following components Percentage by weight is constituted：Chlorinated paraffin 4-6%, neopelex 2-3%, stearic acid 1-3%, calcium-zinc composite stabilizing agent 0.2-0.4%, antimony oxide 0.3-0.6%, antirust agent 0.7-1.5%, balance of mineral oil.
A kind of wear-resistant railway switch cast steel preparation method, each alloying component of railway switch blank and percentage by weight For：C2.8%, Si1.6%, Mo0.85%, P0.01%, S0.02%, Cr1.3%, W0.3%, V0.09%, Ni0.3%, Ti0.17%, Nb0.21%, Zn0.05%, balance of iron.
Workpiece surface anti-corrosive technology of the present invention it is simpler rationally, technique further improves realizations, make its bulk strength with Wearability is further improved, and improves the protective effect to metal.Compared with conventional wrought processes, qualification rate from 70% improve to 94%, grain size reaches 3 grades, and final material tensile strength reaches 530MPa, and yield strength reaches 330MPa, and mechanical property is complete Meet and require.
Specific embodiment
A kind of wear-resistant railway switch cast steel preparation method, includes following processing step：
1）, cast flange blank, each alloying component of the flange blank and percentage by weight are：C0.7 ~ 0.9%, Si0.4 ~ 0.8%, Mn0.6 ~ 0.7%, P 0.012% ~ 0.022%, S≤0.035%, Cr1.6 ~ 2.2%, Pb0.04 ~ 0.08%, W0.15 ~ 0.21%, V0.05 ~ 0.11%, Ni0.35 ~ 0.45%, Ti0.3 ~ 0.4%, Nb0.08 ~ 0.15%, Zr0.03 ~ 0.08%, balance of aluminium；
2）Washing：Washed in the hydrogen peroxide for mass concentration being 10-12%, 60-70 DEG C of washing temperature, washing time 10-20min；
3）Drying：Flange blank after washing is dried in being placed on programmable baking oven, and temperature is risen into 450 DEG C, used time from 400 DEG C 40s；Temperature is risen into 500 DEG C, used time 20s from 450 DEG C；Temperature is risen into 580 DEG C, used time 30s from 500 DEG C again；Finally Temperature is risen to 620 DEG C from 580 DEG C, used time 20s, and temperature reaches 620 DEG C and just stops heating, into cooling stage；
4）Antirust treatment：11-15min is soaked in antirust oil, antirust oil is made up of by weight percentage following components：Chlorination stone Wax 4%, neopelex 2%, calgon 2%, sorbitan mono-oleic acid ester 0.2%, vulcanizing agent 0.6%, antirust agent 1%, balance of vegetable oil.
Present invention manufacture railway track nodular cast iron test data：Tensile strength sigma b >=1120MPa；Yield strength σ0.2 ≥920MPa；Elongation percentage δ5(‰) ≥3.1；Contraction percentage of area ψ (‰) >=18.2；Room temperature impact toughness α ku (42 DEG C) >= 69J/cm2；Low-temperature impact toughness σ ku (- 30 DEG C) >=32.5J/cm2；Hardness HRC40-42.

Claims (2)

1. a kind of wear-resistant railway switch cast steel preparation method, it is characterised in that include following processing step：
1）, cast railway switch blank, each alloying component of railway switch blank and percentage by weight are：C2.65 ~ 2.95%, Si1.4 ~ 1.8%, Mo0.8 ~ 0.9%, P≤0.012%, S≤0.025%, Cr1.2 ~ 1.4%, W0.25 ~ 0.35%, V0.06 ~ 0.12%, Ni0.25 ~ 0.35%, Ti0.12 ~ 0.22%, Nb0.18 ~ 0.25%, Zn0.03 ~ 0.08%, balance of iron；
2）First washed with the potassium phosphate solution that mass concentration is 20-32%, 40-50 DEG C of washing temperature, washing time 30- 40min, the railway switch blank after washing is dried in being placed on programmable baking oven, and temperature is risen into 350 DEG C, used time from 300 DEG C 60-70s；Temperature is risen into 500 DEG C, used time 50-70s from 450 DEG C；Temperature is risen into 570 DEG C, used time 30- from 500 DEG C again 50s；Temperature is finally risen to 650 DEG C from 570 DEG C, used time 40-80s, then rapid air cooling；
3）Antirust treatment：Track switch after air cooling soaks 15-25min in placing into antirust oil, and the antirust oil is pressed by following components Percentage by weight is constituted：Chlorinated paraffin 4-6%, neopelex 2-3%, stearic acid 1-3%, calcium-zinc composite stabilizing agent 0.2-0.4%, antimony oxide 0.3-0.6%, antirust agent 0.7-1.5%, balance of mineral oil.
2. wear-resistant railway switch cast steel preparation method according to claim 1, it is characterised in that railway switch hair Each alloying component of base and percentage by weight are：C2.8%, Si1.6%, Mo0.85%, P0.01%, S0.02%, Cr1.3%, W0.3%, V0.09%, Ni0.3%, Ti0.17%, Nb0.21%, Zn0.05%, balance of iron.
CN201611010078.7A 2016-11-17 2016-11-17 A kind of wear-resistant railway switch cast steel preparation method Pending CN106834912A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354395A (en) * 2017-07-11 2017-11-17 合肥众磊信息科技有限公司 A kind of track high-strength abrasion-proof steel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614196A (en) * 2013-11-25 2014-03-05 上海悦萌环保科技有限公司 Workpiece surface rust prevention treatment method
CN105925877A (en) * 2016-06-20 2016-09-07 马鞍山市益丰实业集团有限公司 Preparing method for rust-prevention magnetic separation material wear-resisting ball
CN106086611A (en) * 2016-06-20 2016-11-09 马鞍山市益丰实业集团有限公司 A kind of cement building material wear-resistant ball preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614196A (en) * 2013-11-25 2014-03-05 上海悦萌环保科技有限公司 Workpiece surface rust prevention treatment method
CN105925877A (en) * 2016-06-20 2016-09-07 马鞍山市益丰实业集团有限公司 Preparing method for rust-prevention magnetic separation material wear-resisting ball
CN106086611A (en) * 2016-06-20 2016-11-09 马鞍山市益丰实业集团有限公司 A kind of cement building material wear-resistant ball preparation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354395A (en) * 2017-07-11 2017-11-17 合肥众磊信息科技有限公司 A kind of track high-strength abrasion-proof steel

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Application publication date: 20170613