CN108611558A - A kind of manufacturing method of high-flexibility wear-resistant steel - Google Patents
A kind of manufacturing method of high-flexibility wear-resistant steel Download PDFInfo
- Publication number
- CN108611558A CN108611558A CN201611133057.4A CN201611133057A CN108611558A CN 108611558 A CN108611558 A CN 108611558A CN 201611133057 A CN201611133057 A CN 201611133057A CN 108611558 A CN108611558 A CN 108611558A
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- CN
- China
- Prior art keywords
- cooling
- melting
- resistant steel
- manufacturing
- casting
- 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
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
Abstract
The invention discloses a kind of manufacturing methods of high-flexibility wear-resistant steel.It includes the following steps：A, dispensing；B, melting：By melting stove evacuation, dispensing obtained by step A is put into vacuum melting furnace and carries out melting；C, it pours into a mould；D, cooling：After the casting that step C is obtained is by air-cooled cooling, by cooling by water, then condensed by condensing unit；E, it anneals：It is heated after casting after cooling in step D is carried out polishing processing, then carries out rapid water cooling；F, it quenches：Cast member heating is quenched, is tempered in time after quenching.It 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, the other materials ingredient of proper ratio is selected, thus the backplate produced has extraordinary toughness, also there is good hardness, the performances such as wear-resisting, shock resistance are made it have, meets being required to mechanical performance during ball blast, extends service life.
Description
Technical field
The present invention relates to a kind of shot blast room backplate steel, especially a kind of manufacturing method of high-flexibility wear-resistant steel.
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 in the chamber body of shot-blasting machine around workpiece, the bullet of high speed can punch chamber body over time, because
This is usually laid with backplate in shot blasting machine chamber body in the prior art, and existing backplate type is relatively more, generally uses rich chromium cast iron
Or manganese steel plate, but in the bullet for being faced with high speed injection, existing backplate keeps its intensity still inadequate due to problem of materials
Good, service life is not grown, therefore will be replaced after a period of use, is thus not only caused the waste in cost but also is indulged in
It delays work the phase, 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 height with long service life
The manufacturing method of tough wear-resistant hard steel.
In order to solve the above-mentioned technical problem, the manufacturing method of high-flexibility wear-resistant steel of the invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.3~0.5%, silicon 0.6~0.8%, tungsten 0.9~
1.2%, chromium 2.9~3.9%, titanium 1.2~1.8%, manganese 2~4%, molybdenum 0. 9~1. 2%, sulphur 0.02~0.04%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 3.2~3.8Pa, 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 1700~1850 DEG C；
D, cooling：After the casting that step C is obtained is by 35~45 min of air-cooled cooling, pass through cooling by water 60~75
Then min condenses 15~20 min by condensing unit；
E, it anneals：870~890 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 55~75
Then min carries out rapid water cooling；
F, it quenches：Cast member is heated to 680~700 DEG C to quench, is tempered in time after quenching, temperature 310
~340 DEG C.
In the step B, when melting, smelting temperature is 1350~1450 DEG C, and smelting time is 55~60 min, goes out furnace temperature
Degree is 800~900 DEG C.
In the step C, casting fully solidifies 35~40 min in sandbox after cast.
In the step F, the cool time is 3~4h.
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, the backplate thus produced have extraordinary toughness, it is often more important that also have good
Hardness makes it have the performances such as wear-resisting, shock resistance, meets being required to mechanical performance during ball blast, extends use
Service life, in addition, treatment process of the present invention, using being quickly cooled down and rational quenching technical improves alloy structure
Performance, impact flexibility is good, and comprehensive mechanical performance is good, and manufactured product is made to have reached wear-resisting and moderate blow performance requirement.
Specific implementation mode
With reference to embodiment, the manufacturing method of the high-flexibility wear-resistant steel of the present invention is made further specifically
It is bright.
The manufacturing method of the high-flexibility wear-resistant steel of the present invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.3~0.5%, silicon 0.6~0.8%, tungsten 0.9~
1.2%, chromium 2.9~3.9%, titanium 1.2~1.8%, manganese 2~4%, molybdenum 0. 9~1. 2%, sulphur 0.02~0.04%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 3.2~3.8Pa, and dispensing obtained by step A is put into
Vacuum melting furnace carries out melting；When melting, smelting temperature is 1350~1450 DEG C, and smelting time is 55~60 min, goes out furnace temperature
Degree is 800~900 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 1700~1850 DEG C；After cast
Casting fully solidifies 35~40 min in sandbox；
D, cooling：After the casting that step C is obtained is by 35~45 min of air-cooled cooling, pass through cooling by water 60~75
Then min condenses 15~20 min by condensing unit；
E, it anneals：870~890 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 55~75
Then min carries out rapid water cooling；
F, it quenches：Cast member is heated to 680~700 DEG C to quench, the cool time is 3~4h, is returned in time after quenching
Fire, temperature are 310~340 DEG C.
Claims (4)
1. a kind of manufacturing method of high-flexibility wear-resistant steel, it is characterised in that：Include the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 0.3~0.5%, silicon 0.6~0.8%, tungsten 0.9~
1.2%, chromium 2.9~3.9%, titanium 1.2~1.8%, manganese 2~4%, molybdenum 0. 9~1. 2%, sulphur 0.02~0.04%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 3.2~3.8Pa, 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 1700~1850 DEG C；
D, cooling：After the casting that step C is obtained is by 35~45 min of air-cooled cooling, pass through cooling by water 60~75
Then min condenses 15~20 min by condensing unit；
E, it anneals：870~890 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 55~75
Then min carries out rapid water cooling；
F, it quenches：Cast member is heated to 680~700 DEG C to quench, is tempered in time after quenching, temperature 310
~340 DEG C.
2. the manufacturing method of high-flexibility wear-resistant steel described in accordance with the claim 1, it is characterised in that：In the step B, melting
When, smelting temperature is 1350~1450 DEG C, and smelting time is 55~60 min, and tapping temperature is 800~900 DEG C.
3. the manufacturing method of high-flexibility wear-resistant steel described in accordance with the claim 1, it is characterised in that：In the step C, after cast
Casting fully solidifies 35~40 min in sandbox.
4. the manufacturing method of high-flexibility wear-resistant steel described in accordance with the claim 1, it is characterised in that：In the step F, when quenching
Between be 3~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133057.4A CN108611558A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high-flexibility wear-resistant steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133057.4A CN108611558A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high-flexibility wear-resistant steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108611558A true CN108611558A (en) | 2018-10-02 |
Family
ID=63656996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133057.4A Pending CN108611558A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high-flexibility wear-resistant steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108611558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247038A (en) * | 2020-11-12 | 2021-01-22 | 阳春新钢铁有限责任公司 | Wire rod steel rolling part and steel rolling part production process thereof |
-
2016
- 2016-12-10 CN CN201611133057.4A patent/CN108611558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247038A (en) * | 2020-11-12 | 2021-01-22 | 阳春新钢铁有限责任公司 | Wire rod steel rolling part and steel rolling part production process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |