CN108611555A - A kind of manufacturing method of low-carbon alloy steel - Google Patents
A kind of manufacturing method of low-carbon alloy steel Download PDFInfo
- Publication number
- CN108611555A CN108611555A CN201611133049.XA CN201611133049A CN108611555A CN 108611555 A CN108611555 A CN 108611555A CN 201611133049 A CN201611133049 A CN 201611133049A CN 108611555 A CN108611555 A CN 108611555A
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- Prior art keywords
- carbon
- alloy steel
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- manufacturing
- melting
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Classifications
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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
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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)
- Materials Engineering (AREA)
- Mechanical 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 shot blast room sheath, especially a kind of low-carbon alloy steel sheath.The alloying component of its weight percent is：Carbon 0.20~0.23%, silicon 1.30~1.50%, manganese 0.6~0.8%, chromium 1.5~1.8%, nickel 1.5~1.8%, molybdenum 0.6~0.7%, copper 0.25~0.35%, silicon 1~2%, surplus are iron.Compared to the prior art, the invention has the advantages that:Due to rationally defining the content of carbon and specifically defining chromium, ratio between nickel and carbon, at the same time, the other materials ingredient of proper ratio is selected, thus the backplate produced has unusual hardness, more importantly also there is good toughness, it makes it have wear-resisting, the performances such as shock resistance, meet ball blast being required to mechanical performance in the process, extend service life, in addition, treatment process of the present invention, amalgamation is good between making various composition, improve alloy structure performance, and then product made of making has reached wear-resisting, shock resistance.
Description
Technical field
The present invention relates to a kind of manufacturing method of shot blast room sheath material, especially a kind of manufacturer of low-carbon alloy steel
Method.
Background technology
Shot-blasting machine is to be sprayed bullet high speed using high-speed rotating impeller head, and bullet is made to have certain kinetic energy, high speed
The bullet of linear motion directly impacts on the surface of the workpiece, and to remove the rusty stain of workpiece surface, but shot-blasting machine is carrying out ball blast
During have bullet and beaten on the roller of the chamber body of shot-blasting machine around workpiece, the bullet of high speed can beat chamber body over time
It wears, therefore sheath usually is installed on the roller in shot blasting machine chamber body in the prior art, existing sheath type is relatively more, generally
Using rich chromium cast iron or manganese steel plate, but in the bullet for being faced with high speed injection, existing sheath is made due to material technology problem
Its intensity is still not good enough, and service life is not grown, therefore will be replaced after a period of use, thus not only causes into
Waste in sheet and delay the duration, influences production efficiency.
Invention content
The technical problem to be solved in the present invention is to provide a kind of wearabilities good, strong shock resistance and with long service life low
Carbon alloy steel sheath.
In order to solve the above-mentioned technical problem, the manufacturing method of low-carbon alloy steel of the invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.20~0.23%, silicon 1.30~1. 50%, manganese
0.6~0.8%, chromium 1.5~1.8%, nickel 1.5~1.8%, molybdenum 0.6~0.7%, copper 0.25~0.35%, silicon 1~2%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.5~2.7Pa, and dispensing obtained by step A is put into
Vacuum melting furnace carries out melting；
C, it pours into a mould：The solution that step B is obtained is poured into a mould in sandbox, pouring temperature is 1380~1450 DEG C；
D, cooling：After the casting that step C is obtained is by 15~20 min of air-cooled cooling, pass through cooling by water 36~42
Then min condenses 20~22 min by condensing unit；
E, it anneals：810~930 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Min, the then natural cooling in wind；
F, it quenches：Cast member is heated to 670~730 DEG C to quench, is tempered in time after quenching, temperature 280
~300 DEG C.
In the step B, when melting, smelting temperature is 1650~1850 DEG C, and smelting time is 40~55 min, goes out furnace temperature
Degree is 1650~1750 DEG C.
In the step C, casting fully solidifies 25~35 min in sandbox after cast.
In the step F, the cool time is 6~9h.
Compared to the prior art, the invention has the advantages that:
Due to rationally defining the content of carbon and specifically defining the ratio between chromium, nickel and carbon, at the same time, select to close
The other materials ingredient of suitable ratio, and melting is carried out after extracting vacuum, thus make the uniformity that its solution dissolves good, in addition,
Cast postcooling is gradually cooled down by three kinds of modes, ensure that the quality of casting, and the backplate thus produced has very hard
Degree, it is often more important that also there is good toughness, make it have the performances such as wear-resisting, shock resistance, meet ball blast in the process to machinery
Being required for performance, extends service life, in addition, manufacturing method of the present invention, makes to merge between various composition
Property it is good, improve alloy structure performance, and then product made of making has reached wear-resisting, shock resistance.
Specific implementation mode
With reference to embodiment, the manufacturing method of the low-carbon alloy steel of the present invention is described in further detail.
The manufacturing method of the low-carbon alloy steel of the present invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.20~0.23%, silicon 1.30~1. 50%, manganese
0.6~0.8%, chromium 1.5~1.8%, nickel 1.5~1.8%, molybdenum 0.6~0.7%, copper 0.25~0.35%, silicon 1~2%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.5~2.7Pa, and dispensing obtained by step A is put into
Vacuum melting furnace carries out melting；When melting, smelting temperature is 1650~1850 DEG C, and smelting time is 40~55 min, goes out furnace temperature
Degree is 1650~1750 DEG C；
C, it pours into a mould：The solution that step B is obtained is poured into a mould in sandbox, pouring temperature is 1380~1450 DEG C；After cast
Casting fully solidifies 25~35 min in sandbox；
D, cooling：After the casting that step C is obtained is by 15~20 min of air-cooled cooling, pass through cooling by water 36~42
Then min condenses 20~22 min by condensing unit；
E, it anneals：810~930 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Min, the then natural cooling in wind；
F, it quenches：Cast member is heated to 670~730 DEG C to quench, is tempered in time after quenching, temperature 280
~300 DEG C.Cool time is 6~9h.
Claims (4)
1. a kind of manufacturing method of low-carbon alloy steel, it is characterised in that：Include the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.20~0.23%, silicon 1.30~1. 50%, manganese
0.6~0.8%, chromium 1.5~1.8%, nickel 1.5~1.8%, molybdenum 0.6~0.7%, copper 0.25~0.35%, silicon 1~2%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.5~2.7Pa, and dispensing obtained by step A is put into
Vacuum melting furnace carries out melting；
C, it pours into a mould：The solution that step B is obtained is poured into a mould in sandbox, pouring temperature is 1380~1450 DEG C；
D, cooling：After the casting that step C is obtained is by 15~20 min of air-cooled cooling, pass through cooling by water 36~42
Then min condenses 20~22 min by condensing unit；
E, it anneals：810~930 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Min, the then natural cooling in wind；
F, it quenches：Cast member is heated to 670~730 DEG C to quench, is tempered in time after quenching, temperature 280
~300 DEG C.
2. the manufacturing method of low-carbon alloy steel described in accordance with the claim 1, it is characterised in that：In the step B, when melting,
Smelting temperature is 1650~1850 DEG C, and smelting time is 40~55 min, and tapping temperature is 1650~1750 DEG C.
3. the manufacturing method of low-carbon alloy steel described in accordance with the claim 1, it is characterised in that：In the step C, cast after cast
Part fully solidifies 25~35 min in sandbox.
4. the manufacturing method of low-carbon alloy steel described in accordance with the claim 1, it is characterised in that：In the step F, the cool time
For 6~9h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133049.XA CN108611555A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of low-carbon alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133049.XA CN108611555A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of low-carbon alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108611555A true CN108611555A (en) | 2018-10-02 |
Family
ID=63643616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133049.XA Pending CN108611555A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of low-carbon alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108611555A (en) |
-
2016
- 2016-12-10 CN CN201611133049.XA patent/CN108611555A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |
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| WD01 | Invention patent application deemed withdrawn after publication |