CN111041328A - Toothless saw blade for cutting steel rope and production method thereof - Google Patents

Toothless saw blade for cutting steel rope and production method thereof Download PDF

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Publication number
CN111041328A
CN111041328A CN201911354695.2A CN201911354695A CN111041328A CN 111041328 A CN111041328 A CN 111041328A CN 201911354695 A CN201911354695 A CN 201911354695A CN 111041328 A CN111041328 A CN 111041328A
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CN
China
Prior art keywords
saw blade
equal
less
cutting steel
toothless saw
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
CN201911354695.2A
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Chinese (zh)
Inventor
葛春钰
李海强
刘海燕
李娜
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Angang Cast Steel Co ltd
Original Assignee
Angang Cast Steel 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 Angang Cast Steel Co ltd filed Critical Angang Cast Steel Co ltd
Priority to CN201911354695.2A priority Critical patent/CN111041328A/en
Publication of CN111041328A publication Critical patent/CN111041328A/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
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B22D23/10—Electroslag casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention discloses a toothless saw blade for cutting steel ropes and a production method thereof, and the toothless saw blade comprises the following components in percentage by mass: 0.20-0.40%, Si: 0.15-0.40%, Mn: 0.30-0.60%, P is less than or equal to 0.020%, S is less than or equal to 0.020%, Ni: 1.50-3.20%, Cr: 0.50-1.5%, and the balance of iron and inevitable impurities. The produced toothless saw blade has long service life and no crack defect after long-time use; the production flow is optimized, the manufacture is simple, the operation is convenient, and the working hours are saved.

Description

Toothless saw blade for cutting steel rope and production method thereof
Technical Field
The invention relates to the technical field of saw blades, in particular to a toothless saw blade for cutting steel ropes and a production method thereof.
Background
The saw blade is usually in a high-temperature-room temperature circulating state due to friction during cutting of the high-strength steel rope, so that cracks are generated due to fatigue of the saw blade in the final use stage, and safety is affected. The existing toothless saw blade is manufactured by adopting 45# steel, forging and heat treatment processes, the saw blade has short service life, the average service life is 3 months, and the service life of a long-time continuous cutting steel rope is not more than 1 month; severely restricting the cutting of steel cord.
Disclosure of Invention
In order to overcome the defects, the invention provides the toothless saw blade for cutting the steel rope and the production method thereof, which can prolong the service life of the toothless saw blade for cutting the steel rope and improve the safety use performance.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
a toothless saw blade for cutting steel ropes is characterized by comprising the following components in percentage by mass: 0.20-0.40%, Si: 0.15-0.40%, Mn: 0.30-0.60%, P is less than or equal to 0.020%, S is less than or equal to 0.020%, Ni: 1.50-3.20%, Cr: 0.50-1.5%, and the balance of iron and inevitable impurities.
The composition design is to add strengthening elements on the basis of carbon steel, thereby improving the heat resistance and wear resistance indexes of the steel.
Chromium increases the hardness and wear resistance of carbon steel without embrittling the steel, and also increases the heat strength of the steel to some extent. Chromium is a main alloy element of stainless acid-resistant steel and heat-resistant steel.
Nickel can strengthen ferrite and refine pearlite, and the overall effect is to improve strength and have little influence on plasticity. Generally, for low carbon steels used in rolled, normalized or annealed states without tempering, a certain nickel content increases the strength of the steel without significantly decreasing its toughness.
A method for producing a toothless saw blade for cutting steel ropes is characterized in that: adopting continuous casting, electroslag remelting and saw blade processing, wherein the continuous casting comprises the following steps: the water inlet temperature of the cooling water of the crystallizer is less than or equal to 35 ℃, and the water outlet temperature is less than or equal to 55 ℃; electroslag remelting: the slag system is CaF in percentage by weight260% -75% and Al2O325% -40% of binary premelting slag; the flow of argon gas in the processes of deoxidation and argon blowing is controlled to be 5-15m3Adding aluminum particles or silico-calcium powder along with the slag to deoxidize; the slagging is that the current is gradually changed from 500A to 200A0A is kept for 15-25 minutes, the voltage is 135-127V, the current is raised to 7000-8000A and the voltage is 118-100V within 35 minutes; the melting speed is 280-330 kg/h; current 7500 +/-1000A, voltage 118-; the compensation is to continuously reduce the current to 500-1000A; after feeding is finished, power is cut off, demoulding is carried out, the material enters a slow cooling pit, and heat preservation is carried out for 10-16 hours; and (5) machining the saw blade after slow cooling.
And producing a phi 150 round billet by continuous casting, forming three consumable electrodes, and carrying out electroslag remelting by adopting a phi 320 crystallizer.
The invention has the advantages that the produced toothless saw blade has long service life and no crack defect after long-time use; the production flow is optimized, the manufacture is simple, the operation is convenient, and the working hours are saved.
Detailed Description
The following description is given with reference to specific examples:
the components of the saw blade for cutting steel cord are shown in the following table:
C Si Mn P S Ni Cr
example 1 0.21 0.16 0.32 0.017 0.018 1.91 0.60
Example 2 0.26 0.23 0.40 0.015 0.015 2.29 0.71
Example 3 0.32 0.31 0.49 0.013 0.013 2.96 0.93
Example 4 0.38 0.39 0.58 0.012 0.011 3.15 1.42
The balance of iron and inevitable impurities according to weight percentageThe production method of the non-tooth saw blade for cutting the steel rope, which is free of impurities, adopts continuous casting-electroslag remelting-processing of the saw blade, and the continuous casting comprises the following steps: the water inlet temperature of the cooling water of the crystallizer is less than or equal to 35 ℃, and the water outlet temperature is less than or equal to 55 ℃; and (3) producing a phi 150 round billet by continuous casting, and then forming a consumable electrode by three parts, and carrying out electroslag remelting by adopting a phi 320 crystallizer: the slag system is CaF in percentage by weight265% and Al2O335% of binary premelting slag; the flow of argon in the deoxidation and argon blowing processes is controlled at 8m3Adding aluminum particles or silico-calcium powder along with the slag to deoxidize; the slag melting is that the current is gradually kept for 15 minutes from 500A to 2000A, the voltage is 135V, the current is increased to 8000A within 35 minutes, and the voltage is 118V; the melting speed is 320 kg/h; current 7500A, voltage 100V; the compensation is to continuously reduce the current to 1000A; after feeding is finished, power is cut off, demoulding is carried out, the material enters a slow cooling pit, and heat preservation is carried out for 10 hours; cutting the electroslag ingot into a steel sheet with the thickness of 150mm, and processing according to the size of the saw blade.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (3)

1. A toothless saw blade for cutting steel ropes is characterized by comprising the following components in percentage by mass: 0.20-0.40%, Si: 0.15-0.40%, Mn: 0.30-0.60%, P is less than or equal to 0.020%, S is less than or equal to 0.020%, Ni: 1.50-3.20%, Cr: 0.50-1.5%, and the balance of iron and inevitable impurities.
2. A method for producing a toothless saw for cutting steel cord according to claim 1, characterized in that: adopting continuous casting, electroslag remelting and saw blade processing, wherein the continuous casting comprises the following steps: the water inlet temperature of the cooling water of the crystallizer is less than or equal to 35 ℃, and the water outlet temperature is less than or equal to 55 ℃; electroslag remelting: the slag system is CaF in percentage by weight260% -75% and Al2O325% -40% of binary premelting slag; the flow of argon gas in the processes of deoxidation and argon blowing is controlled to be 5-15m3H, slag formationAdding aluminum particles or silico-calcium powder for deoxidation; the slagging is that the current is gradually kept for 15-25 minutes from 500A to 2000A, the voltage is 135-; the melting speed is 280-330 kg/h; current 7500 +/-1000A, voltage 118-; the compensation is to continuously reduce the current to 500-1000A; after feeding is finished, power is cut off, demoulding is carried out, the material enters a slow cooling pit, and heat preservation is carried out for 10-16 hours; and (5) machining the saw blade after slow cooling.
3. A method for producing a toothless saw for cutting steel cord according to claim 2, characterized in that: and producing a phi 150 round billet by continuous casting, forming three consumable electrodes, and carrying out electroslag remelting by adopting a phi 320 crystallizer.
CN201911354695.2A 2019-12-25 2019-12-25 Toothless saw blade for cutting steel rope and production method thereof Pending CN111041328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911354695.2A CN111041328A (en) 2019-12-25 2019-12-25 Toothless saw blade for cutting steel rope and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911354695.2A CN111041328A (en) 2019-12-25 2019-12-25 Toothless saw blade for cutting steel rope and production method thereof

Publications (1)

Publication Number Publication Date
CN111041328A true CN111041328A (en) 2020-04-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911354695.2A Pending CN111041328A (en) 2019-12-25 2019-12-25 Toothless saw blade for cutting steel rope and production method thereof

Country Status (1)

Country Link
CN (1) CN111041328A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007197778A (en) * 2006-01-27 2007-08-09 Jfe Steel Kk High-strength steel material having low strength-dependency and superior fatigue-crack propagation resistance, and manufacturing method therefor
CN106702285A (en) * 2016-12-12 2017-05-24 马鞍山市天马冶金材料有限公司 Steel for fluid end of fracturing pump, and preparation process thereof
CN110565017A (en) * 2019-09-20 2019-12-13 舞阳钢铁有限责任公司 Steel plate for nuclear power flywheel made of continuous casting and electroslag and smelting method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007197778A (en) * 2006-01-27 2007-08-09 Jfe Steel Kk High-strength steel material having low strength-dependency and superior fatigue-crack propagation resistance, and manufacturing method therefor
CN106702285A (en) * 2016-12-12 2017-05-24 马鞍山市天马冶金材料有限公司 Steel for fluid end of fracturing pump, and preparation process thereof
CN110565017A (en) * 2019-09-20 2019-12-13 舞阳钢铁有限责任公司 Steel plate for nuclear power flywheel made of continuous casting and electroslag and smelting method thereof

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Application publication date: 20200421

RJ01 Rejection of invention patent application after publication