CN108611548A - A kind of manufacturing method of high nickel cast iron alloy - Google Patents
A kind of manufacturing method of high nickel cast iron alloy Download PDFInfo
- Publication number
- CN108611548A CN108611548A CN201611133075.2A CN201611133075A CN108611548A CN 108611548 A CN108611548 A CN 108611548A CN 201611133075 A CN201611133075 A CN 201611133075A CN 108611548 A CN108611548 A CN 108611548A
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- CN
- China
- Prior art keywords
- melting
- cooling
- iron alloy
- manufacturing
- cast iron
- 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
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
-
- 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
- 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
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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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)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of manufacturing methods of high nickel cast iron alloy.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 26~36 min of air-cooled cooling, by 40~55 min of cooling by water, 26~36 min are then condensed by condensing unit；E, it anneals；F, it quenches：Cast member is heated to 800~850 DEG C to quench, is tempered in time after quenching.It has the advantages that:Due to rationally defining the content of nickel and chromium and specifically defining the ratio between nickel, chromium and carbon, at the same time, the other materials ingredient of proper ratio is selected, and carry out melting after extracting vacuum, thus make the uniformity that its solution dissolves good, cast postcooling is gradually cooled down by three kinds of modes, ensure that the quality of casting, thus the backplate produced has very high hardness, toughness also fine.
Description
Technical field
The present invention relates to a kind of manufacturing method of shot blast room guard plate material, especially a kind of manufacture of high nickel cast iron alloy
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 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 protective plate in shot blasting machine chamber body in the prior art, and existing protective plate type is relatively more, generally uses Gao Ge
Cast iron or manganese steel plate, but in the bullet for being faced with high speed injection, existing backplate makes its intensity still due to problem of materials
Not good enough, service life is not grown, therefore will be replaced after a period of use, thus not only cause the waste in cost and
And delay the duration, influence production efficiency.
Invention content
That the technical problem to be solved in the present invention is to provide a kind of hardness is high, wearability is good, anti-impact force and service life are long
High nickel cast iron alloy manufacturing method.
In order to solve the above-mentioned technical problem, the manufacturing method of high nickel cast iron alloy of the invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 3.8~4.8%, silicon 0. 90~1.50%, manganese 0.9
~1.3%, chromium 10~13%, nickel 7~10%, molybdenum 1~3%, titanium 0.08~0.12%, silicon 1~3%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.7~3.1Pa, 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 1500~1650 DEG C；
D, cooling：After the casting that step C is obtained is by 26~36 min of air-cooled cooling, pass through cooling by water 40~55
Then min condenses 26~36 min by condensing unit；
E, it anneals：1200~1300 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Then min is cooled down rapidly；
F, it quenches：Cast member is heated to 800~850 DEG C to quench, is tempered in time after quenching, temperature 360
~380 DEG C.
In the step B, when melting, smelting temperature is 1380~1520 DEG C, and smelting time is 55~60 min, goes out furnace temperature
Degree is 1100~1250 DEG C.
In the step C, casting fully solidifies 45~55 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 nickel and chromium and specifically defining the ratio between nickel, chromium and carbon, at the same time, selection
The other materials ingredient of proper ratio, and after extracting vacuum melting is carried out, thus make the uniformity that its solution dissolves good, separately
Outside, cast postcooling is gradually cooled down by three kinds of modes, ensure that the quality of casting, and the backplate thus produced has very high
Hardness, toughness is also fine, makes it have the performances such as wear-resisting, shock resistance, meets during ball blast and owns to mechanical performance
It is required that extending service life, in addition, manufacturing method of the present invention, amalgamation is good between making various composition, alloy group
It is good to knit performance, and then manufactured product is made to have reached wear-resisting, shock resistance.
Specific implementation mode
With reference to embodiment, the manufacturing method of the high nickel cast iron alloy of the present invention is made further specifically
It is bright.
The manufacturing method of the high nickel cast iron alloy of the present invention, includes the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 3.8~4.8%, silicon 0. 90~1.50%, manganese 0.9
~1.3%, chromium 10~13%, nickel 7~10%, molybdenum 1~3%, titanium 0.08~0.12%, silicon 1~3%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.7~3.1Pa, and dispensing obtained by step A is put into
Vacuum melting furnace carries out melting；When melting, smelting temperature is 1380~1520 DEG C, and smelting time is 55~60 min, goes out furnace temperature
Degree is 1100~1250 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 1500~1650 DEG C；After cast
Casting fully solidifies 45~55 min in sandbox；
D, cooling：After the casting that step C is obtained is by 26~36 min of air-cooled cooling, pass through cooling by water 40~55
Then min condenses 26~36 min by condensing unit；
E, it anneals：1200~1300 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Then min is cooled down rapidly；
F, it quenches：Cast member is heated to 800~850 DEG C to quench, the cool time is 6~9h, is returned in time after quenching
Fire, temperature are 360~380 DEG C.
Claims (4)
1. a kind of manufacturing method of high nickel cast iron alloy, it is characterised in that：Include the following steps：
A, dispensing：By weight percentage, by following chemical composition dispensing, carbon 3.8~4.8%, silicon 0. 90~1.50%, manganese 0.9
~1.3%, chromium 10~13%, nickel 7~10%, molybdenum 1~3%, titanium 0.08~0.12%, silicon 1~3%, surplus is iron；
B, melting：By melting stove evacuation so that the pressure in smelting furnace is 1.7~3.1Pa, 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 1500~1650 DEG C；
D, cooling：After the casting that step C is obtained is by 26~36 min of air-cooled cooling, pass through cooling by water 40~55
Then min condenses 26~36 min by condensing unit；
E, it anneals：1200~1300 DEG C are heated to after casting after cooling in step D is carried out polishing processing, heat preservation 25~35
Then min is cooled down rapidly；
F, it quenches：Cast member is heated to 800~850 DEG C to quench, is tempered in time after quenching, temperature 360
~380 DEG C.
2. the manufacturing method of high nickel cast iron alloy described in accordance with the claim 1, it is characterised in that：In the step B, melting
When, smelting temperature is 1380~1520 DEG C, and smelting time is 55~60 min, and tapping temperature is 1100~1250 DEG C.
3. the manufacturing method of high nickel cast iron alloy described in accordance with the claim 1, it is characterised in that：In the step C, after cast
Casting fully solidifies 45~55 min in sandbox.
4. the manufacturing method of high nickel cast iron alloy described in accordance with the claim 1, it is characterised in that：In the step F, when quenching
Between be 6~9h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133075.2A CN108611548A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high nickel cast iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133075.2A CN108611548A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high nickel cast iron alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108611548A true CN108611548A (en) | 2018-10-02 |
Family
ID=63657265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133075.2A Pending CN108611548A (en) | 2016-12-10 | 2016-12-10 | A kind of manufacturing method of high nickel cast iron alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108611548A (en) |
-
2016
- 2016-12-10 CN CN201611133075.2A patent/CN108611548A/en active Pending
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Legal Events
| 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 |