CN108754291A - A kind of high chrome alloy steel ball producing process - Google Patents
A kind of high chrome alloy steel ball producing process Download PDFInfo
- Publication number
- CN108754291A CN108754291A CN201810594737.9A CN201810594737A CN108754291A CN 108754291 A CN108754291 A CN 108754291A CN 201810594737 A CN201810594737 A CN 201810594737A CN 108754291 A CN108754291 A CN 108754291A
- Authority
- CN
- China
- Prior art keywords
- steel ball
- alloy steel
- chrome alloy
- producing process
- high chrome
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
-
- 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
- C22C38/04—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of high chrome alloy steel ball producing process, production technology includes the following steps：Raw material are chemically examined and are classified, and are processed into the specification classification stacking for meeting technological requirement；Raw material dispensing is subjected to melting；The molding cast of swage Quench；It is chemically examined after molding, and semi-finished product is demoulded；Semi-finished product are polished, and are examined；Product after polishing is heat-treated and examines molding.Manufacture craft of the present invention is simple, and Cr contents reach 8 ~ 12.5% in alloying pellet, and cast is more refined using the crystal grain that the chilling technology of Space Science and Technology is cast ball, and tissue is finer and close, increases wearability, and heat treatment is to use interrupted quenching：It is quickly cooled down when high temperature, mitigates when medium temperature and improve intensity in the case where ensureing cast ball toughness.
Description
Technical field
The present invention relates to a kind of high chrome alloy steel ball producing process.
Background technology
The production of conventional alloys steel ball, the C of main component generally use 0.6 ~ 0.85%, and it is properly added Si, Mn element,
And according to the steel ball size requirement different with steel ball surface hardness, centre hardness, the elements such as Cr, V, Mo are added in right amount.And mesh
The high chromium ball in preceding market is produced using traditional production technology, is susceptible to showing of cracking in broken ball in production process or use
As the reason of causing this phenomenon is largely related with heat treatment process, and for heat treatment, the country mostly uses at this stage
Single medium quenching, this influences the toughness and wearability of product to a certain extent.
Invention content
It is an object of the invention to overcome the above deficiency, provide that a kind of wearability is good, the low high-chromium alloy steel ball of percentage of damage
Production technology,
To achieve the above object, the present invention provides the following technical solutions：A kind of high chrome alloy steel ball producing process, the production work
Skill includes the following steps：
A：Raw material are chemically examined and are classified, and are processed into the specification classification stacking for meeting technological requirement；
B：Raw material dispensing is subjected to melting；
C：The molding cast of swage Quench；
D：It is chemically examined after molding, and semi-finished product is demoulded；
E：Semi-finished product are polished, and are examined；
F：Product after polishing is heat-treated and examines molding.
Preferably, the main chemical compositions of high-chromium alloy steel ball include C：1.3 ~ 3.2%, Si：0 ~ 1.2%, Mn：0 ~ 1.0%,
Cr：8 ~ 12.5%, P：0 ~ 0.10%, S：0 ~ 0.10%, other are iron and inevitable impurity.
Preferably, quick medium-frequency induction furnace melting is used in step B when raw material melting, and to molten steel in fusion process
Carry out deoxidation, dephosphorization, desulfurization process, be used in combination spectral element analyzer progress stokehold and stove after monitoring, and after melting into
Row scarfing cinder and calm processing.
Preferably, the swage in step C empties metal swage merging form, and internal placement using two pieces of cylindrical interiors
Laterite.
Preferably, the Quench pouring type in step C is the chilling technology of Space Science and Technology, pouring temperature and mold temperature it
Between there are 1500 DEG C of the temperature difference, and use the differential hardening technique generated with die cast moulding process carrier.
Preferably, the abrasive media in step E uses two kinds：It is leading one is rare earth, another kind is micro- with molybdenum and nickel etc.
It measures based on valuable rare element.
Preferably, for the heat treatment in step F with full-automatic push-down continuous quenching, backfire product line, quenching is to use
Interrupted quenching.
Compared with prior art, the beneficial effects of the invention are as follows：Manufacture craft of the present invention is simple, and Cr contents reach in alloying pellet
To 8 ~ 12.5%, cast is more refined using the crystal grain that the chilling technology of Space Science and Technology is cast ball, and tissue is finer and close, is increased resistance to
Mill property, heat treatment are to use interrupted quenching：It is quickly cooled down when high temperature, mitigates when medium temperature and carried in the case where ensureing cast ball toughness
High intensity.
Figure of description：
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the present invention is further elaborated, should
Embodiment is only used for explaining the present invention, is not used to limiting the scope of the present invention.
A kind of embodiment of the production technology of high-chromium alloy steel ball of the present invention as shown in Figure 1, a kind of high-chromium alloy steel ball
Production technology, the production technology include the following steps：
A：Raw material are chemically examined and are classified, and are processed into the specification classification stacking for meeting technological requirement；
B：Raw material dispensing is subjected to melting；
C：The molding cast of swage Quench；
D：It is chemically examined after molding, and semi-finished product is demoulded；
E：Semi-finished product are polished, and are examined；
F：Product after polishing is heat-treated and examines molding.
In the present embodiment, the main chemical compositions of high-chromium alloy steel ball include C：1.3 ~ 3.2%, Si：0 ~ 1.2%, Mn：0~
1.0%, Cr：8 ~ 12.5%, P：0 ~ 0.10%, S：0 ~ 0.10%, other are iron and inevitable impurity.
In the present embodiment, quick medium-frequency induction furnace melting is used in step B when raw material melting, and right in fusion process
Molten steel carries out deoxidation, dephosphorization, desulfurization process, is used in combination spectral element analyzer to carry out the monitoring after stokehold and stove, and in melting
Scarfing cinder and calm processing are carried out afterwards.
In the present embodiment, the swage in step C empties metal swage merging form using two pieces of cylindrical interiors, and internal
Place laterite.
In the present embodiment, the Quench pouring type in step C is the chilling technology of Space Science and Technology, pouring temperature and mold temperature
There are 1500 DEG C of the temperature difference between degree, and use the differential hardening technique generated with die cast moulding process carrier.
In the present embodiment, the abrasive media in step E uses two kinds：It is leading one is rare earth, another kind is with molybdenum and nickel
Based on micro valuable rare element.
In the present embodiment, with full-automatic push-down continuous quenching, backfire product line, quenching is the heat treatment in step F
Using interrupted quenching.
Manufacture craft of the present invention is simple, and Cr contents reach 8 ~ 12.5% in alloying pellet, and cast uses the Quench work of Space Science and Technology
Skill is that the crystal grain of cast ball more refines, and tissue is finer and close, increases wearability, and heat treatment is to use interrupted quenching：When high temperature
It is quickly cooled down, mitigates when medium temperature and improve intensity in the case where ensureing cast ball toughness.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high chrome alloy steel ball producing process, which is characterized in that the production technology includes the following steps：
A：Raw material are chemically examined and are classified, and are processed into the specification classification stacking for meeting technological requirement；
B：Raw material dispensing is subjected to melting；
C：The molding cast of swage Quench；
D：It is chemically examined after molding, and semi-finished product is demoulded；
E：Semi-finished product are polished, and are examined；
F：Product after polishing is heat-treated and examines molding.
2. a kind of high chrome alloy steel ball producing process according to claim 1, it is characterised in that：The master of high-chromium alloy steel ball
It includes C to want chemical composition：1.3 ~ 3.2%, Si：0 ~ 1.2%, Mn：0 ~ 1.0%, Cr：8 ~ 12.5%, P：0 ~ 0.10%, S：0 ~ 0.10%,
Other are iron and inevitable impurity.
3. a kind of high chrome alloy steel ball producing process according to claim 1, it is characterised in that：Raw material are molten in step B
Quick medium-frequency induction furnace melting is used when refining, and deoxidation, dephosphorization, desulfurization process are carried out to molten steel in fusion process, and is used up
Spectral element analyzer carries out the monitoring after stokehold and stove, and scarfing cinder and calm processing are carried out after melting.
4. a kind of high chrome alloy steel ball producing process according to claim 1, it is characterised in that：Swage in step C is adopted
Metal swage merging form, and internal placement laterite are emptied with two pieces of cylindrical interiors.
5. a kind of high chrome alloy steel ball producing process according to claim 1, it is characterised in that：Quench in step C is poured
Note mode is the chilling technology of Space Science and Technology, and there are 1500 DEG C of the temperature difference between pouring temperature and mold temperature, and use with gold
The differential hardening technique for belonging to die cast moulding process carrier and generating.
6. high chrome alloy steel ball producing process according to claim 1, it is characterised in that：Abrasive media in step E is adopted
With two kinds：It is leading one is rare earth, another kind is based on the micro valuable rare element such as molybdenum and nickel.
7. a kind of high chrome alloy steel ball producing process according to claim 1, it is characterised in that：Heat treatment in step F
With full-automatic push-down continuous quenching, backfire product line, quenching is to use interrupted quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594737.9A CN108754291A (en) | 2018-06-11 | 2018-06-11 | A kind of high chrome alloy steel ball producing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594737.9A CN108754291A (en) | 2018-06-11 | 2018-06-11 | A kind of high chrome alloy steel ball producing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108754291A true CN108754291A (en) | 2018-11-06 |
Family
ID=64020903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594737.9A Withdrawn CN108754291A (en) | 2018-06-11 | 2018-06-11 | A kind of high chrome alloy steel ball producing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108754291A (en) |
-
2018
- 2018-06-11 CN CN201810594737.9A patent/CN108754291A/en not_active Withdrawn
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181106 |
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