CN113088663A - Machining method of steel cutter - Google Patents

Machining method of steel cutter Download PDF

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Publication number
CN113088663A
CN113088663A CN202110360200.8A CN202110360200A CN113088663A CN 113088663 A CN113088663 A CN 113088663A CN 202110360200 A CN202110360200 A CN 202110360200A CN 113088663 A CN113088663 A CN 113088663A
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Prior art keywords
cutter
blank
parts
heating
furnace
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Pending
Application number
CN202110360200.8A
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Chinese (zh)
Inventor
汤士贤
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.)
Nantong Sihe Stainless Steel Product Co ltd
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Nantong Sihe Stainless Steel Product Co ltd
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Priority to CN202110360200.8A priority Critical patent/CN113088663A/en
Publication of CN113088663A publication Critical patent/CN113088663A/en
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Classifications

    • 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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • 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
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention discloses a machining method of a steel cutter, which comprises the following steps: A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank; B. putting the cutter blank into a heating furnace for heat treatment; C. passivating the knife blank after heat treatment; D. and finally, polishing and grinding the passivated cutter blank.

Description

Machining method of steel cutter
Technical Field
The invention relates to the technical field of machining of steel cutters, in particular to a machining method of a steel cutter.
Background
A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The cutting tools for cutting wood are called woodworking tools. There is also a class of tools of particular application for geological exploration, well drilling, mine drilling, known as mine tools.
The existing steel cutter has a single processing method and cannot effectively improve the mechanical property of the cutter, so that improvement is needed.
Disclosure of Invention
The present invention is directed to a method for machining a steel tool, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
Preferably, the raw materials of the cutter in the step A comprise, by mass, 0.5-0.8% of carbon, 1.5-2.6% of silicon, 0.20-0.6% of manganese, 0.4-0.9% of chromium, 0.8-1.3% of nickel, and the balance of iron.
Preferably, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1000-1200 ℃, preserving heat for 1-2h, then heating the heating furnace to 1300-1400 ℃, preserving heat for 2-3 h;
b. then placing the cutter into an annealing furnace, heating the annealing furnace to 380-;
c. then, immediately placing the annealed cutter blank into a tempering furnace for tempering, raising the temperature of the tempering furnace to 900-1000 ℃, and keeping the temperature for 2-3 h;
d. and slowly cooling the tempering furnace to 200-300 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
Preferably, the components of the passivation solution in the step C comprise, by weight, 4-10 parts of vanadate, 6-12 parts of polytetrafluoroethylene, 8-14 parts of titanium sulfate normal salt, 1-5 parts of aluminum oxide, 4-10 parts of zinc carbonate and 1-3 parts of ammonium fluotitanate.
Preferably, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 2-4 min.
Compared with the prior art, the invention has the beneficial effects that: the processing method adopted by the invention is simple to operate, can improve the hardness, toughness and wear resistance of the cutter, and prolongs the service life of the steel cutter; the passivation film formed by the adopted passivation solution has high stability, corrosion resistance and certain oxidation resistance, and can effectively protect the steel cutter.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides the following technical scheme: a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
In this embodiment, the raw materials of the cutting tool in step a include, by mass, 0.5% of carbon, 1.5% of silicon, 0.20% of manganese, 0.4% of chromium, 0.8% of nickel, and the balance iron.
In this embodiment, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1000 ℃, preserving heat for 1h, then heating the heating furnace to 1300 ℃, and preserving heat for 2 h;
b. then, putting the cutter into an annealing furnace, heating the annealing furnace to 380 ℃, and preserving heat for 1 h;
c. then immediately putting the annealed cutter blank into a tempering furnace for tempering, heating the tempering furnace to 900 ℃, and keeping the temperature for 2 hours;
d. and slowly cooling the tempering furnace to 200 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
In this embodiment, the passivation solution in step C includes, by weight, 4 parts of vanadate, 6 parts of polytetrafluoroethylene, 8 parts of titanium sulfate normal salt, 1 part of aluminum oxide, 4 parts of zinc carbonate, and 1 part of ammonium fluorotitanate.
In the embodiment, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 2 min.
Example two:
a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
In this embodiment, the raw materials of the cutting tool in step a include, by mass, 0.8% of carbon, 2.6% of silicon, 0.6% of manganese, 0.9% of chromium, 1.3% of nickel, and the balance iron.
In this embodiment, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1200 ℃, preserving heat for 2h, then heating the heating furnace to 1400 ℃, and preserving heat for 3 h;
b. then, putting the cutter into an annealing furnace, heating the annealing furnace to 420 ℃, and preserving heat for 1.5 h;
c. then immediately putting the annealed cutter blank into a tempering furnace for tempering, raising the temperature of the tempering furnace to 1000 ℃, and keeping the temperature for 3 hours;
d. and slowly cooling the tempering furnace to 300 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
In this embodiment, the passivation solution in step C includes, by weight, 10 parts of vanadate, 12 parts of polytetrafluoroethylene, 14 parts of titanium sulfate normal salt, 5 parts of aluminum oxide, 10 parts of zinc carbonate, and 3 parts of ammonium fluorotitanate.
In the embodiment, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 4 min.
Example three:
a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
In this embodiment, the raw materials of the cutting tool in step a include, by mass, 0.6% of carbon, 1.6% of silicon, 0.3% of manganese, 0.5% of chromium, 0.9% of nickel, and the balance iron.
In this embodiment, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1050 ℃, preserving heat for 1h, then heating the heating furnace to 1320 ℃, and preserving heat for 2 h;
b. then, putting the cutter into an annealing furnace, heating the annealing furnace to 390 ℃, and preserving heat for 1 h;
c. then immediately putting the annealed cutter blank into a tempering furnace for tempering, heating the tempering furnace to 920 ℃, and keeping the temperature for 2 hours;
d. and slowly cooling the tempering furnace to 220 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
In this embodiment, the passivation solution in step C includes, by weight, 5 parts of vanadate, 7 parts of polytetrafluoroethylene, 9 parts of titanium sulfate normal salt, 2 parts of aluminum oxide, 5 parts of zinc carbonate, and 2 parts of ammonium fluorotitanate.
In the embodiment, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 2 min.
Example four:
a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
In this embodiment, the raw materials of the cutting tool in step a include, by mass, 0.7% of carbon, 2.5% of silicon, 0.5% of manganese, 0.8% of chromium, 1.2% of nickel, and the balance iron.
In this embodiment, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1150 ℃, preserving heat for 2h, then heating the heating furnace to 1380 ℃, and preserving heat for 2.7 h;
b. then, putting the cutter into an annealing furnace, heating the annealing furnace to 410 ℃, and preserving heat for 1.5 h;
c. then immediately putting the annealed cutter blank into a tempering furnace for tempering, heating the tempering furnace to 980 ℃, and keeping the temperature for 3 hours;
d. and slowly cooling the tempering furnace to 280 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
In this embodiment, the passivation solution in step C includes, by weight, 9 parts of vanadate, 11 parts of polytetrafluoroethylene, 13 parts of titanium sulfate normal salt, 4 parts of aluminum oxide, 9 parts of zinc carbonate, and 2 parts of ammonium fluorotitanate.
In the embodiment, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 3 min.
Example five:
a machining method of a steel cutter comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
In this embodiment, the raw materials of the cutting tool in step a include, by mass, 0.75% of carbon, 2.2% of silicon, 0.4% of manganese, 0.6% of chromium, 1% of nickel, and the balance iron.
In this embodiment, the heat treatment process in step B is as follows:
a. heating the heating furnace to 1100 ℃, preserving heat for 1h, then heating the heating furnace to 1350 ℃, and preserving heat for 3 h;
b. then, putting the cutter into an annealing furnace, heating the annealing furnace to 400 ℃, and preserving heat for 1.2 h;
c. then, immediately putting the annealed cutter blank into a tempering furnace for tempering, heating the tempering furnace to 950 ℃, and keeping the temperature for 2.5 hours;
d. and slowly cooling the tempering furnace to 250 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
In this embodiment, the passivation solution in step C includes, by weight, 7 parts of vanadate, 9 parts of polytetrafluoroethylene, 11 parts of titanium sulfate normal salt, 3 parts of aluminum oxide, 7 parts of zinc carbonate, and 2 parts of ammonium fluorotitanate.
In the embodiment, in the step D, the cutter is subjected to steel shot grinding targeted shot blasting treatment, and the cutter subjected to shot blasting is taken out after being soaked in anti-rust water for 3 min.
Experimental example:
the steel cutter processed by the embodiments of the invention is used for performance test, and the obtained data is as follows:
Figure DEST_PATH_IMAGE002
in conclusion, the machining method adopted by the invention is simple to operate, can improve the hardness, toughness and wear resistance of the cutter, and prolongs the service life of the steel cutter; the passivation film formed by the adopted passivation solution has high stability, corrosion resistance and certain oxidation resistance, and can effectively protect the steel cutter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A machining method of a steel cutter is characterized by comprising the following steps: the method comprises the following steps:
A. firstly, selecting raw materials of a cutter, and adding the raw materials into a blank making machine to make a cutter blank;
B. putting the cutter blank into a heating furnace for heat treatment;
C. passivating the knife blank after heat treatment;
D. and finally, polishing and grinding the passivated cutter blank.
2. A method of machining a steel tool according to claim 1, characterized in that: the raw materials of the cutter in the step A comprise, by mass, 0.5-0.8% of carbon, 1.5-2.6% of silicon, 0.20-0.6% of manganese, 0.4-0.9% of chromium, 0.8-1.3% of nickel and the balance of iron.
3. A method of machining a steel tool according to claim 1, characterized in that: the heat treatment process in the step B is as follows:
a. heating the heating furnace to 1000-1200 ℃, preserving heat for 1-2h, then heating the heating furnace to 1300-1400 ℃, preserving heat for 2-3 h;
b. then placing the cutter into an annealing furnace, heating the annealing furnace to 380-;
c. then, immediately placing the annealed cutter blank into a tempering furnace for tempering, raising the temperature of the tempering furnace to 900-1000 ℃, and keeping the temperature for 2-3 h;
d. and slowly cooling the tempering furnace to 200-300 ℃, taking out the cutter blank, and putting the cutter blank into quenching liquid for quenching and cooling.
4. A method of machining a steel tool according to claim 1, characterized in that: and the passivation solution in the step C comprises 4-10 parts by weight of vanadate, 6-12 parts by weight of polytetrafluoroethylene, 8-14 parts by weight of titanium sulfate normal salt, 1-5 parts by weight of aluminum oxide, 4-10 parts by weight of zinc carbonate and 1-3 parts by weight of ammonium fluorotitanate.
5. A method of machining a steel tool according to claim 1, characterized in that: and D, performing targeted shot blasting treatment on the cutter by using a steel shot grinding machine, and taking out the cutter after the shot blasting treatment after the cutter is soaked in anti-rust water for 2-4 min.
CN202110360200.8A 2021-04-02 2021-04-02 Machining method of steel cutter Pending CN113088663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110360200.8A CN113088663A (en) 2021-04-02 2021-04-02 Machining method of steel cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110360200.8A CN113088663A (en) 2021-04-02 2021-04-02 Machining method of steel cutter

Publications (1)

Publication Number Publication Date
CN113088663A true CN113088663A (en) 2021-07-09

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Country Status (1)

Country Link
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000218447A (en) * 1999-02-01 2000-08-08 Daido Steel Co Ltd Manufacturing of cutter
CN104878376A (en) * 2015-06-25 2015-09-02 潘应生 Aluminum alloy low chromium passivation solution and preparation method of passivation solution
CN111748750A (en) * 2019-03-26 2020-10-09 南京鼎久机械装备有限公司 High-toughness steel for cutter and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000218447A (en) * 1999-02-01 2000-08-08 Daido Steel Co Ltd Manufacturing of cutter
CN104878376A (en) * 2015-06-25 2015-09-02 潘应生 Aluminum alloy low chromium passivation solution and preparation method of passivation solution
CN111748750A (en) * 2019-03-26 2020-10-09 南京鼎久机械装备有限公司 High-toughness steel for cutter and preparation method thereof

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