CN111809118A - Framework reinforced wear-resistant steel forging and preparation method thereof - Google Patents

Framework reinforced wear-resistant steel forging and preparation method thereof Download PDF

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Publication number
CN111809118A
CN111809118A CN202010626727.6A CN202010626727A CN111809118A CN 111809118 A CN111809118 A CN 111809118A CN 202010626727 A CN202010626727 A CN 202010626727A CN 111809118 A CN111809118 A CN 111809118A
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steel
forging
steel forging
framework
following
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程世满
程步清
程涛
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Ningguo Changxiang Grinding Materials Co ltd
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Ningguo Changxiang Grinding Materials Co ltd
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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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Forging (AREA)

Abstract

The invention discloses a framework reinforced wear-resistant steel forging which comprises the following components in percentage by weight: mn: 0.52-0.84%; ti: 0.05% -0.13%; v: 0.32-0.55%; ni: 0.10 to 0.15 percent; cr: 0.08-0.16%; si: 0.30-0.50%; mo: 0.08-0.24%; w: 0.80-1.35%; the remaining materials are Fe and corresponding inexhaustible impurities, and the preparation method of the framework reinforced wear-resistant steel forging comprises the following steps: blending, casting and forming, pre-heat treatment, forging and forming, secondary heat treatment and surface treatment. According to the invention, by adding element materials such as Mo, W, Cr and the like in the steelmaking process and combining with Si, the corrosion resistance and oxidation resistance of the steel forging are greatly improved, and the strength, hardness and wear resistance of the forged steel are enhanced, so that the service performance of the steel forging is greatly enhanced, and meanwhile, the hardness and wear resistance of the steel are greatly improved by reasonably selecting the proportion of W and the carbon content of the original steel.

Description

Framework reinforced wear-resistant steel forging and preparation method thereof
Technical Field
The invention relates to the technical field of steel production, in particular to a framework-reinforced wear-resistant steel forging and a preparation method thereof.
Background
The steel products are widely applied and have various varieties, and are generally divided into four categories, namely section bars, plates, pipes and metal products according to different section shapes. The steel is a material with certain shape, size and performance, which is made of steel ingots, steel billets or steel materials through pressure processing, most of the steel processing is through pressure processing, and the processed steel (billets, ingots and the like) generates plastic deformation, so that the steel processing is widely applied to various buildings and production at present, especially in some large-scale transportation pipelines or other supporting structures, the steel is used as a framework for supporting in a beautiful manner, and a corresponding reinforcing structure is designed to ensure the overall strength of the framework;
the prior art has the following defects: because the skeleton body can not directly carry out the lug connection with the large-scale pipeline or other structures that support, and under a lot of adverse conditions, skeleton body and reinforcing structure need with many motion facilities contact, consequently, need make steel have certain wear resistance, still need guarantee certain hardness and intensity simultaneously, and ordinary carbon steel can't satisfy corresponding requirement, consequently can produce great loss when using, and cause certain loss.
Disclosure of Invention
The invention aims to provide a framework reinforced wear-resistant steel forging and a preparation method thereof, and aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the framework reinforced wear-resistant steel forging comprises the following components in percentage by weight: mn: 0.52-0.84%; ti: 0.05% -0.13%; v: 0.32-0.55%; ni: 0.10 to 0.15 percent; cr: 0.08-0.16%; si: 0.30-0.50%; mo: 0.08-0.24%; w: 0.80-1.35%; the remainder being Fe and corresponding impurities which cannot be excluded.
A method for preparing a framework reinforced wear-resistant steel forging comprises the following steps:
step 1, blending and fusing, namely adding the steel raw materials into a high-temperature electric melting furnace, heating to 1220-;
step 2, casting and forming, namely selecting a corresponding casting die after the temperature of the molten steel is cooled to 1450-1480 ℃, filling the corresponding casting die at one time, and forming the steel forging A after the molten steel is cooled and formed;
step 3, performing pre-heat treatment, namely putting the formed steel forging A into an electric melting furnace, heating to 1050-;
step 4, forging and pressing molding, namely putting the steel forging A after heat treatment into an electric melting furnace, heating to 1000-1150 ℃, taking out, forging the steel forging A to form a corresponding blank, and performing hot pressing molding treatment to form corresponding forged steel B;
step 5, secondary heat treatment, namely placing the forged steel forging B into an electric melting furnace, heating to 1050-;
and 6, surface treatment, namely cleaning the surface of the treated steel forging B, and storing the steel forging B after simple rust prevention treatment.
Preferably, the carbon content of the steel raw material in the step 1 is 0.50-1.42%.
Preferably, in the step 1, when the furnace temperature is raised to 1450-.
Preferably, the temperature of the aqueous medium quenched in the step 2 is controlled to be 18-30 ℃, and the temperature of the oil medium quenched in the step 5 is controlled to be 60-80 ℃.
Preferably, the hot press molding in the step 4 includes heating the forged steel B to 1000-1150 ℃, and then extruding and molding the forged steel B by using an extrusion device.
Preferably, the cleaning treatment in step 6 includes brushing off impurities on the surface of the steel forged B by using an iron wire brush.
Preferably, in the step 6, the rust prevention treatment is not performed on the steel forging B with short storage time, and the rust prevention solution can be sprayed on the surface of the steel forging B with storage time of more than three months, wherein the rust prevention period of one spraying is more than 8 months, and if the storage period needs to be prolonged, the steel forging B is soaked, sprayed or coated once every half year.
In the technical scheme, the invention provides the following technical effects and advantages:
1. according to the invention, Si is added as a reducing agent and a deoxidizer in the steelmaking process, the elastic limit, the yield point and the tensile strength of steel are improved, and then the Si is combined with Mo, W, Cr and other element materials, so that the corrosion resistance and the oxidation resistance of the steel forging are greatly improved, and the strength, the hardness and the wear resistance of forged steel are enhanced, thereby greatly enhancing the service performance of the steel forging.
Detailed Description
The present invention will be described in further detail below in order to enable those skilled in the art to better understand the technical solution of the present invention.
Example 1
The framework reinforced wear-resistant steel forging comprises the following components in percentage by weight: mn: 0.60 percent; ti: 0.90 percent; v: 0.45 percent; ni: 0.12 percent; cr: 0.14 percent; si: 0.50 percent; mo: 0.15 percent; w: 1.18 percent; the rest is Fe and corresponding impurities which cannot be removed;
a method for preparing a framework reinforced wear-resistant steel forging comprises the following steps:
step 1, blending and fusing, namely adding the steel raw materials into a high-temperature electric melting furnace, heating to 1220-;
step 2, casting and forming, namely selecting a corresponding casting die after the temperature of the molten steel is cooled to 1450-1480 ℃, filling the corresponding casting die at one time, and forming the steel forging A after the molten steel is cooled and formed;
step 3, performing pre-heat treatment, namely putting the formed steel forging A into an electric melting furnace, heating to 1050-;
step 4, forging and pressing molding, namely putting the steel forging A after heat treatment into an electric melting furnace, heating to 1000-1150 ℃, taking out, forging the steel forging A to form a corresponding blank, and performing hot pressing molding treatment to form corresponding forged steel B;
step 5, secondary heat treatment, namely placing the forged steel forging B into an electric melting furnace, heating to 1050-;
step 6, surface treatment, namely cleaning the surface of the steel forging B after the treatment, and storing the steel forging B after simple rust prevention treatment;
further, the carbon content of the steel raw material in the step 1 is 0.50% -1.42%;
further, in the step 1, when the furnace temperature is raised to 1450-;
further, the temperature of the aqueous medium quenched in the step 2 is controlled to be 18-30 ℃, and the temperature of the oil medium quenched in the step 5 is controlled to be 60-80 ℃;
further, the hot press molding in the step 4 comprises heating the forged steel B to 1000-1150 ℃, and then extruding and molding the forged steel B by using an extrusion device;
further, the cleaning treatment in the step 6 comprises brushing impurities on the surface of the steel forging B by using an iron wire brush;
further, in the step 6, the steel forging B with short storage time is not subjected to rust prevention treatment, and the surface of the steel forging B with storage time more than three months can be sprayed with the rust prevention liquid, wherein the rust prevention period of one spraying is more than 8 months, and if the storage period needs to be prolonged, the steel forging B is soaked, sprayed or coated once every half year;
according to the embodiment, Si is added in the steelmaking process to serve as a reducing agent and a deoxidizing agent, the elastic limit of steel is improved, the yield point and the tensile strength are improved, then Mo, W, Cr and other element materials are added to be combined with Si, the corrosion resistance and the oxidation resistance of steel forging are greatly improved, the strength, the hardness and the wear resistance of forged steel are enhanced, the service performance of steel forging is greatly enhanced, meanwhile, the hardness and the wear resistance of steel are greatly improved through reasonable selection of W proportion and the carbon content of original steel, and further the steel forging is used as a framework reinforced structural material, so that excellent performance can be exerted.
Example 2
The framework reinforced wear-resistant steel forging comprises the following components in percentage by weight: mn: 0.40 percent; (poor wear resistance) Ti: 0.80 percent; v: 0.50 percent; ni: 0.14 percent; cr: 0.09%; si: 0.35 percent; mo: 0.20 percent; w: 0.90 percent; the rest is Fe and corresponding impurities which cannot be removed;
a method for preparing a framework reinforced wear-resistant steel forging comprises the following steps:
step 1, blending and fusing, namely adding the steel raw materials into a high-temperature electric melting furnace, heating to 1220-;
step 2, casting and forming, namely selecting a corresponding casting die after the temperature of the molten steel is cooled to 1450-1480 ℃, filling the corresponding casting die at one time, and forming the steel forging A after the molten steel is cooled and formed;
step 3, pre-heat treatment, namely placing the formed steel forging A into an electric melting furnace to be heated to 1050-;
step 4, forging and pressing molding, namely putting the steel forging A after heat treatment into an electric melting furnace, heating to 1000-1150 ℃, taking out, forging the steel forging A to form a corresponding blank, and performing hot pressing molding treatment to form corresponding forged steel B;
step 5, secondary heat treatment, namely placing the forged steel forging B into an electric melting furnace, heating to 1050-;
step 6, surface treatment, namely cleaning the surface of the steel forging B after the treatment, and storing the steel forging B after simple rust prevention treatment;
further, the carbon content of the steel raw material in the step 1 is 0.50% -1.42%;
further, in the step 1, when the furnace temperature is raised to 1450-;
further, the temperature of the aqueous medium quenched in the step 2 is controlled to be 18-30 ℃, and the temperature of the oil medium quenched in the step 5 is controlled to be 60-80 ℃;
further, the hot press molding in the step 4 comprises heating the forged steel B to 1000-1150 ℃, and then extruding and molding the forged steel B by using an extrusion device;
further, the cleaning treatment in the step 6 comprises brushing impurities on the surface of the steel forging B by using an iron wire brush;
in the step 6, the steel forging B with short storage time is not subjected to rust prevention treatment, and the surface of the steel forging B with storage time more than three months can be sprayed with the rust prevention liquid, wherein the rust prevention period of one spraying is more than 8 months, and if the storage period needs to be prolonged, the steel forging B is soaked, sprayed or coated once every half year;
in this example, compared with example 1, the steel is improved in elastic limit, yield point and tensile strength by adding Si as a reducing agent and a deoxidizer during the steel-making process, and the corrosion resistance and oxidation resistance of the steel forging are improved by adding the Si in combination with Mo, W, Cr and other element materials, but the forged steel is relatively poor in wear resistance and low in strength and hardness.
Example 3
The framework reinforced wear-resistant steel forging comprises the following components in percentage by weight: mn: 0.80 percent; (poor welding) Ti: 0.12 percent; v: 0.32 percent; ni: 0.11 percent; cr: 0.15 percent; si: 0.40 percent; mo: 0.15 percent; w: 1.30 percent; the rest is Fe and corresponding impurities which cannot be removed;
a method for preparing a framework reinforced wear-resistant steel forging comprises the following steps:
step 1, blending and fusing, namely adding the steel raw materials into a high-temperature electric melting furnace, heating to 1220-;
step 2, casting and forming, namely selecting a corresponding casting die after the temperature of the molten steel is cooled to 1450-1480 ℃, filling the corresponding casting die at one time, and forming the steel forging A after the molten steel is cooled and formed;
step 3, pre-heat treatment, namely placing the formed steel forging A into an electric melting furnace to be heated to 1050-;
step 4, forging and pressing molding, namely putting the steel forging A after heat treatment into an electric melting furnace, heating to 1000-1150 ℃, taking out, forging the steel forging A to form a corresponding blank, and performing hot pressing molding treatment to form corresponding forged steel B;
step 5, secondary heat treatment, namely placing the forged steel forging B into an electric melting furnace, heating to 1050-;
step 6, surface treatment, namely cleaning the surface of the steel forging B after the treatment, and storing the steel forging B after simple rust prevention treatment;
further, the carbon content of the steel raw material in the step 1 is 0.50% -1.42%;
further, in the step 1, when the furnace temperature is raised to 1450-;
further, the temperature of the aqueous medium quenched in the step 2 is controlled to be 18-30 ℃, and the temperature of the oil medium quenched in the step 5 is controlled to be 60-80 ℃;
further, the hot press molding in the step 4 comprises heating the forged steel B to 1000-1150 ℃, and then extruding and molding the forged steel B by using an extrusion device;
further, the cleaning treatment in the step 6 comprises brushing impurities on the surface of the steel forging B by using an iron wire brush;
further, in the step 6, the steel forging B with short storage time is not subjected to rust prevention treatment, and the surface of the steel forging B with storage time more than three months can be sprayed with the rust prevention liquid, wherein the rust prevention period of one spraying is more than 8 months, and if the storage period needs to be prolonged, the steel forging B is soaked, sprayed or coated once every half year;
in this embodiment, compared with example 1, Si is added as a reducing agent and a deoxidizer during the steel-making process, so as to improve the elastic limit, yield point and tensile strength of the steel, and then, by adding the reducing agent and the deoxidizer to combine with Si, the corrosion resistance and oxidation resistance of the steel forging are improved, so that the strength, hardness and wear resistance of the forged steel are stronger, but the forged steel has poor overall toughness and lower welding performance.
Comparing examples 1-2 and 3, it can be seen that in example 1, the contents of elements such as Si, Mo, W, Cr and the like are optimal, the corrosion resistance and oxidation resistance of the steel forging are greatly improved, and the strength, hardness and wear resistance of the forged steel are enhanced, so that the service performance of the steel forging is greatly enhanced, and meanwhile, the hardness and wear resistance of the steel are greatly improved by reasonably selecting the proportion of W and the carbon content of the original steel, so that the comprehensive performance of the forged steel is optimal.
In order to compare the effects of the invention, the mobile phone shells corresponding to the three modes are subjected to performance tests, and the following table 1 shows corresponding comparison data:
TABLE 1
Figure BDA0002566790460000081
In the table, in the wear rate test, the quartz sand with the granularity of 80 meshes and the hardness of 1100-1300HV is used as abrasive particles to carry out the wear test, and the wear rate test is carried out after 1 hour;
as can be seen from the above tables, the steel forging obtained in example 1 of the present invention has a very good spreading value
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.

Claims (8)

1. The utility model provides a wear-resisting steel forging of skeleton reinforcing which characterized in that: the paint consists of the following components in percentage by weight: mn: 0.52-0.84%; ti: 0.05% -0.13%; v: 0.32-0.55%; ni: 0.10 to 0.15 percent; cr: 0.08-0.16%; si: 0.30-0.50%; mo: 0.08-0.24%; w: 0.80-1.35%; the remainder being Fe and corresponding impurities which cannot be excluded.
2. A method for preparing a framework reinforced wear-resistant steel forging is characterized by comprising the following steps: the method comprises the following steps:
step 1, blending and fusing, namely adding the steel raw materials into a high-temperature electric melting furnace, heating to 1220-;
step 2, casting and forming, namely selecting a corresponding casting die after the temperature of the molten steel is cooled to 1450-1480 ℃, filling the corresponding casting die at one time, and forming the steel forging A after the molten steel is cooled and formed;
step 3, performing pre-heat treatment, namely putting the formed steel forging A into an electric melting furnace, heating to 1050-;
step 4, forging and pressing molding, namely putting the steel forging A after heat treatment into an electric melting furnace, heating to 1000-1150 ℃, taking out, forging the steel forging A to form a corresponding blank, and performing hot pressing molding treatment to form corresponding forged steel B;
step 5, secondary heat treatment, namely placing the forged steel forging B into an electric melting furnace, heating to 1050-;
and 6, surface treatment, namely cleaning the surface of the treated steel forging B, and storing the steel forging B after simple rust prevention treatment.
3. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: the carbon content of the steel raw material in the step 1 is 0.50% -1.42%.
4. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: in the step 1, when the furnace temperature is raised to 1450-1520 ℃, and other element raw materials are sequentially added, the molten steel refining agent can be added.
5. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: the temperature of the aqueous medium quenched in the step 2 is controlled to be 18-30 ℃, and the temperature of the oil medium quenched in the step 5 is controlled to be 60-80 ℃.
6. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: the hot-press molding in the step 4 comprises heating the forged steel B to 1000-1150 ℃, and then extruding and molding the forged steel B by using an extrusion device.
7. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: the cleaning treatment in the step 6 comprises the step of brushing impurities on the surface of the steel forged B by using an iron wire brush.
8. The method for preparing the framework-reinforced wear-resistant steel forging according to claim 2, wherein the method comprises the following steps: in the step 6, the steel forging B with short storage time is not subjected to rust prevention treatment, and the surface of the steel forging B with the storage time of more than three months can be sprayed with the rust prevention liquid, wherein the rust prevention period of one spraying is more than 8 months, and if the storage period needs to be prolonged, the steel forging B is soaked, sprayed or coated once every half year.
CN202010626727.6A 2020-07-02 2020-07-02 Framework reinforced wear-resistant steel forging and preparation method thereof Withdrawn CN111809118A (en)

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