CN105543638A - Metal block for casting automotive engine shell - Google Patents
Metal block for casting automotive engine shell Download PDFInfo
- Publication number
- CN105543638A CN105543638A CN201510925296.2A CN201510925296A CN105543638A CN 105543638 A CN105543638 A CN 105543638A CN 201510925296 A CN201510925296 A CN 201510925296A CN 105543638 A CN105543638 A CN 105543638A
- Authority
- CN
- China
- Prior art keywords
- metal block
- casting
- melting
- temperature
- improved
- 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
- 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
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- 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)
- 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
A metal block for casting an automotive engine shell is prepared from C, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI, Ce, W and Fe. According to the metal block, due to the fact that C and W are added in the secondary smelting process, other elements can be fused firstly; moreover, due to the C and W adding procedure in the secondary smelting process, the hardness of metal can be improved, high malleability is achieved, and the metal can have quite high casting capacity; the thermal conductivity and heat dissipation capacity of the metal can be improved by adding Ai and C, and the content of Ai and the content of C are increased, so that the thermal conduction effect is improved; and through precise control over quenching time and temperature, the hardness and strength of the metal block can be improved, and the quality of the metal block can be improved.
Description
Technical field:
The present invention relates to auto parts machinery casting technology field, be specifically related to a kind of for casting of automobile engine case metal block.
Background technology:
Engine is a kind of power resources on automobile, the performance of engine directly can affect the performance of Integral automobile, so generally all need to have good stability and hardness when production engine and need that there is certain heat-sinking capability, the result of use of such guarantee engine and work-ing life, therefore the cast raw material of motor car engine shell needs good hardness and soundness and needs good thermal conductivity and heat-sinking capability, and such guarantee engine has better use properties.
Summary of the invention:
Technical problem to be solved by this invention be to provide a kind of hardness strong, there is good heat radiation, the metal block of the capacity of heat transmission, the processing this metal block being used for motor car engine shell can improve result of use and the life-span of engine.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of for casting of automobile engine case metal block, have following one-tenth to be grouped into:
Described for casting of automobile engine case metal block, be prepared from by the following method:
(1) Fe, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI are carried out melting, during melting, temperature is 1600-1700 DEG C;
(2) pour into a mould after melting, teeming temperature 1500-1600 DEG C;
(3) after being shaped, secondary smelting is carried out again after casting complete, C, W is added during melting, during melting, temperature is 1650-1850 DEG C, C, W are added when secondary smelting and can make first mutually to merge between other element, and then add the hardness that can increase metal during secondary smelting and ductility is strong, extremely strong casting ability can be had;
(4) carry out second pouring according to demand after melting, during cast, constant temperature is at 1450-1500 DEG C;
(5) after shaping, metal block is heat-treated, first at 600 DEG C of heating 10-12 hour, be warming up to 760 DEG C, then at 140-150 DEG C of quenching oil quenching 10-13 minute, 300 DEG C of tempering 5 hours, after cooling forming, metal block makes and terminates, and the control of accurate cool time and temperature can increase hardness and the intensity of metal block, improves the quality of metal block:
Wherein Mo crystal grain thinning, improves carbide microhardness, improves impelling strength, significantly improves hardening capacity, wherein V can stable carbide, thinning microstructure, improves quenching hardness and also can reduce toughness, and Ti can thinning microstructure, purification crystal boundary, suppresses crackle to produce, increases carbide amount; Cu increases alloy hardening capacity, similar to the effect of Ni;
In addition W add the hardness and glossiness that can increase whole metal block, be conducive to the raising of metal block result of use;
Wherein the interpolation of Ai and C can increase thermal conductivity and the heat-sinking capability of metal, and the lifting of the content of Ai and C is added heat-conducting effect;
The invention has the beneficial effects as follows: C, W are added when secondary smelting and can make first mutually to merge between other element, and then add the hardness that can increase metal during secondary smelting and ductility is strong, extremely strong casting ability can be had, the control of accurate cool time and temperature can increase hardness and the intensity of metal block, improves the quality of metal block.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete example, setting forth the present invention further.
Embodiment 1:
A kind of for casting of automobile engine case metal block, have following one-tenth to be grouped into:
Described for casting of automobile engine case metal block, be prepared from by the following method:
1, Fe, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI are carried out melting, during melting, temperature is 1600 DEG C;
2, pour into a mould after melting, teeming temperature 1500 DEG C;
3, after being shaped, carry out secondary smelting again after casting complete, add C, W during melting, during melting, temperature is 1650 DEG C;
4, carry out second pouring according to demand after melting, during cast, constant temperature is at 1450 DEG C;
5, heat-treated by metal block after shaping, first 600 DEG C of heating 10 hours, be warming up to 760 DEG C, then 140 DEG C of quenching oil quenchings 10 minutes, 300 DEG C of tempering 5 hours, after cooling forming, metal block makes and terminates.
Embodiment 2
A kind of for casting of automobile engine case metal block, have following one-tenth to be grouped into:
Described for casting of automobile engine case metal block, be prepared from by the following method:
1, Fe, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI are carried out melting, during melting, temperature is 1700 DEG C;
2, pour into a mould after melting, teeming temperature 1600 DEG C;
3, after being shaped, carry out secondary smelting again after casting complete, add C, W during melting, during melting, temperature is 1850 DEG C;
4, carry out second pouring according to demand after melting, during cast, constant temperature is at 1500 DEG C;
5, after shaping, metal block is heat-treated, first 600 DEG C of heating 12 hours, be warming up to 760 DEG C, then 150 DEG C of quenching oil quenchings 13 minutes, 300 DEG C of tempering 5 hours, after cooling forming, metal block makes and terminates;
Embodiment 3
A kind of for casting of automobile engine case metal block, have following one-tenth to be grouped into:
Described for casting of automobile engine case metal block, be prepared from by the following method:
1, Fe, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI are carried out melting, during melting, temperature is 1650 DEG C;
2, pour into a mould after melting, teeming temperature 1550 DEG C;
3, after being shaped, carry out secondary smelting again after casting complete, add C, W during melting, during melting, temperature is 1750 DEG C;
4, carry out second pouring according to demand after melting, during cast, constant temperature is at 1480 DEG C;
5, heat-treated by metal block after shaping, first 600 DEG C of heating 11 hours, be warming up to 760 DEG C, then 145 DEG C of quenching oil quenchings 11 minutes, 300 DEG C of tempering 5 hours, after cooling forming, metal block makes and terminates.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. for a casting of automobile engine case metal block, it is characterized in that: have following one-tenth to be grouped into:
2. for a preparation method for casting of automobile engine case metal block, it is characterized in that: be prepared from by the following method:
(1) Fe, Si, Mn, Cr, S, P, Mo, V, Ti, Cu, Ni, AI are carried out melting, during melting, temperature is 1600-1700 DEG C;
(2) pour into a mould after melting, teeming temperature 1500-1600 DEG C;
(3) after being shaped, carry out secondary smelting again after casting complete, add C, W during melting, during melting, temperature is 1650-1850 DEG C;
(4) carry out second pouring according to demand after melting, during cast, constant temperature is at 1450-1500 DEG C;
(5) heat-treated by metal block after shaping, first at 600 DEG C of heating 10-12 hour, be warming up to 760 DEG C, then at 140-150 DEG C of quenching oil quenching 10-13 minute, 300 DEG C of tempering 5 hours, after cooling forming, metal block makes and terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925296.2A CN105543638A (en) | 2015-12-11 | 2015-12-11 | Metal block for casting automotive engine shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925296.2A CN105543638A (en) | 2015-12-11 | 2015-12-11 | Metal block for casting automotive engine shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105543638A true CN105543638A (en) | 2016-05-04 |
Family
ID=55823190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510925296.2A Pending CN105543638A (en) | 2015-12-11 | 2015-12-11 | Metal block for casting automotive engine shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105543638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435347A (en) * | 2016-10-24 | 2017-02-22 | 马鞍山顺发机械制造有限公司 | Automobile brake foundry technology |
-
2015
- 2015-12-11 CN CN201510925296.2A patent/CN105543638A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435347A (en) * | 2016-10-24 | 2017-02-22 | 马鞍山顺发机械制造有限公司 | Automobile brake foundry technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
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| WD01 | Invention patent application deemed withdrawn after publication |