CN106311983A - Method for producing cylinder cover by means of iron mold coated sand technology - Google Patents
Method for producing cylinder cover by means of iron mold coated sand technology Download PDFInfo
- Publication number
- CN106311983A CN106311983A CN201610775682.2A CN201610775682A CN106311983A CN 106311983 A CN106311983 A CN 106311983A CN 201610775682 A CN201610775682 A CN 201610775682A CN 106311983 A CN106311983 A CN 106311983A
- Authority
- CN
- China
- Prior art keywords
- sand
- cylinder cover
- swage
- master mold
- molten 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/068—Semi-permanent moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/007—Treatment of the fused masses in the supply runners
-
- 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
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention relates to a method for producing a cylinder cover by means of an iron mold coated sand technology. A complete cylinder cover cavity is obtained by adopting the iron mold coated sand technology, a sand core is subjected to blanking simultaneously, and then the cylinder cover part can be directly cast. According to the method for producing the cylinder cover by means of the iron mold coated sand technology, the cylinder cover is greatly improved in appearance, the dimensional accuracy is improved, machining allowance is reduced, and the production efficiency of products is improved; iron mold stiffness of the produced cylinder cover is high, automatic feeding performance is improved, the casting head is reduced, and the technological yield is increased; the cooling speed of an iron mold is high, the crystal structure is refined, fineness of the crystal structure is improved, and the defect of leakage of the cylinder cover is overcome; the production technology is stable, production is simple, and the labor intensity of workers is effectively reduced.
Description
Technical field
The present invention relates to the production method of a kind of cylinder cap, a kind of method being specifically related to producing cylinder cover by sand-coated iron mould casting process.
Background technology
Cylinder cap is the ingredient of combustor, and the shape of combustor is very big, due to gasoline engine to the work influence of electromotor
Different with the combustion system of diesel engine, the part difference that its cylinder head forms combustor is bigger.The combustor of gasoline engine is main
In cylinder head, and the combustor of diesel engine is mainly at the pit of top land.Therefore, the production technology of cylinder cap is to its product
Quality is particularly important.The production of cylinder cap at present mostly uses tide mould sand to produce, and the cylinder cap that this method produces yields poorly, useless
Product rate is big, and product yield is low, and allowance is big, and crystalline structure is thick, is easily generated percolating water.
Summary of the invention
Invent to be solved technical problem is that and overcome above-mentioned deficiency, it is provided that the side of a kind of producing cylinder cover by sand-coated iron mould casting process
Method, the cylinder cap yield that the method produces is high, and percent defective is low, has refined crystalline structure, improves the fine and closely woven property of tissue, decreases cylinder
The defect of lid seepage.
In order to achieve the above object, the technical scheme that the present invention takes is as follows:
A kind of method of producing cylinder cover by sand-coated iron mould casting process, comprises the following steps:
(1) design a set of with the on all four model of cylinder cap shape as master mold；
(2) a set of core box consistent with cylinder cap cavity is designed and produced；
(3) making the swage matched with master mold, swage and master mold gap time supporting is 6 7mm；
(4) core box of step (2) being fixed on core making machine, be heated to 180～200 DEG C, and matched moulds, sand ejection board puts in place
Clamping, then penetrates sand, solidifies 2-4 minute, takes out core and seam is split in polishing；
(5) master mold is fixed on penetrates on sand machine worktable, swage is placed in the top of master mold, and heats template to 250～270
DEG C, and swage external form of closing, after penetrating the clamping of sand machine and putting in place, by penetrating sand machine sand-spraying hole, precoated sand is incident upon master mold and swage
Between cavity, penetrate and after sand completes, solidify 20 25s；
(6) to be solidified complete molding after 25 seconds, after natural cooling 15 20s, obtain the upper and lower swage die cavity covering sand successively,
To relevant position under core, and check and penetrate floating sand in sand blows off die cavity the most simultaneously, penetrate sand complete after can mould assembling cast
；
(7), after the upper mo(u)ld bottom half having covered sand being placed drainage screen, mould assembling clamps, and is hung on pouring platform；
(8) heat in raw material being sequentially placed into smelting furnace according to charger sheet, melt out the qualified molten iron that temperature is 1500 DEG C；
(9) use and pour method molten iron is carried out spheroidising, and measure molten iron composition, adjust composition and come out of the stove；
(10) carry out after molten iron removes slag pouring into a mould and squeeze into instantaneous ferrite inovulant, to balance during cast and can not stop and in time
Igniting, the duration of pouring is 6 minutes, and pouring temperature controls at 1000-1500 DEG C, and casting complete, after 20 minutes, is unpacked and taken out foundry goods,
I.e. obtain required cylinder-cover blank part.
Further, described design is a set of includes designing and producing cylinder cap frock mould with the on all four model of cylinder cap shape
Tool, running gate system, heating template and base.
Further, penetrating sand machine described in is that Ka Siding covers sand molding machine.
Further, the granularity of described instantaneous ferrite inovulant is 0.3 0.8mm.
Further, described spheroidising is to add the nodulizer and 7% that mass fraction is 0.75% in nodularization bag
Ferrosilicon, uses the method that pours to pour molten iron into nodularization bag and the molten iron that obtains.
Further, described charger sheet is C:3.4 3.6%；Si:2.1 2.5%；Cu:0.2 0.6%；Mn:0.1
0.5%, remaining is Fe.
The present invention compared with prior art has the advantages that
The cylinder cap that the present invention produces is from being the most significantly improved, and dimensional accuracy improves, and decreases allowance, improves
The production efficiency of product；The cylinder cap swage stiffness produced is high, improves from feeding performance, decreases dead head, improves technique
Yield rate；Swage rate of cooling is fast, has refined crystalline structure, has improve the fine and closely woven property of crystalline structure, decrease cylinder cap seepage
Defect；Stable processing technique of the present invention, produces terse, effectively reduces labor strength, same personnel, and Iron Mould Coated Sand produces
Efficiency is 3 times of clay-bonded sand, improves production efficiency, and has saved plenty of time and the cost such as manpower, equipment, it is possible to decrease enterprise
Industry production cost 20%, resin sand amount used by foundry goods is few, and recyclable, reduces the production cost of enterprise, improves enterprise
Economic benefit, this casting method be applicable to most of foundry enterprise use, there is wide market prospect.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme is described in further detail.
A kind of method of producing cylinder cover by sand-coated iron mould casting process, comprises the following steps: (1) is designed a set of complete with cylinder cap shape
Consistent model is as master mold；Also include designing a set of cylinder cap moulds of industrial equipment of matching with cylinder cap when making master mold, cast is
System, heating template and base.(2) a set of core box consistent with cylinder cap cavity is designed and produced；(3) ferrum matched with master mold is made
Type, swage and master mold gap time supporting is 6 7mm；(4) core box of step (2) is fixed on core making machine, is heated to 180
～200 DEG C, and matched moulds, sand ejection board puts in place clamping, then penetrates sand, solidifies 2-4 minute, takes out core and seam is split in polishing；(5)
Master mold is fixed on Ka Siding and covers on the workbench of sand molding machine, swage is placed in the top of master mold, and heats template to 250
～270 DEG C, and swage external form of closing, after penetrating the clamping of sand machine and putting in place, by penetrating sand machine sand-spraying hole, precoated sand is incident upon master mold
And the cavity between swage, penetrates and solidifies 20 25s after sand completes；(6) to be solidified molding after 25 seconds, natural cooling 15 are completed
After 20s, obtain the upper and lower swage die cavity covering sand successively, arriving relevant position under core, and check that penetrating sand blows the most simultaneously
Floating sand in clean die cavity, penetrate sand complete after can mould assembling cast；(7), after the upper mo(u)ld bottom half having covered sand being placed drainage screen, mould assembling is pressed from both sides
Tightly, it is hung on pouring platform；(8) heating in raw material being sequentially placed into smelting furnace according to charger sheet, melting out temperature is 1500 DEG C
Qualified molten iron, charger sheet is C:3.4 3.6%；Si:2.1 2.5%；Cu:0.2 0.6%；Mn:0.1 0.5%, remaining is
Fe.(9) use and pour method molten iron is carried out spheroidising, and measure molten iron composition, adjust composition and come out of the stove；Described spheroidising
Being to add nodulizer and the ferrosilicon of 7% that mass fraction is 0.75% in nodularization bag, employing is poured method and molten iron is poured into nodularization bag
And the molten iron obtained.(10) carry out pouring into a mould and squeezing into instantaneous ferrite inovulant after molten iron removes slag, instantaneous ferrite inovulant
Granularity is 0.3 0.8mm, to balance and can not stop and ignite in time during cast, and the duration of pouring is 6 minutes, pouring temperature control
System is at 1000-1500 DEG C, and casting complete, after 20 minutes, is unpacked and taken out foundry goods, i.e. obtain required cylinder-cover blank part.Pour
After, complete liquidation clean sand-spraying hole, it is ensured that to penetrate sand unimpeded；And strike-off, antiquated sand in die cavity is cleaned out, it is allowed to few
Amount exists in yellowish-brown sand, is transported to penetrate sand operation, treats to penetrate sand molding next time after strike-ofing.
Casting cylinder cap part through cleaning polishing after, property indices all can meet drawing requirement, it is not necessary to heat treatment and
The processed such as boring.Using the cylinder cap that the present invention produces from being the most significantly improved after testing, dimensional accuracy improves,
Decrease allowance, improve the production efficiency of product；The cylinder cap swage stiffness produced is high, improves from feeding performance, subtracts
Lack dead head, improve product yield；Swage rate of cooling is fast, has refined crystalline structure, has improve the thin of crystalline structure
Close property, decreases the defect of cylinder cap seepage.
Above-described embodiment is not construed as limiting the scope of the present invention, every spirit at present inventive concept and principle it
In, any amendment, equivalent and the improvement etc. that one of skill in the art can make should be included in the protection of the present invention
Within the scope of.
Claims (6)
1. the method for a producing cylinder cover by sand-coated iron mould casting process, it is characterised in that comprise the following steps:
(1) design a set of with the on all four model of cylinder cap shape as master mold；
(2) a set of core box consistent with cylinder cap cavity is designed and produced；
(3) making the swage matched with master mold, swage and master mold gap time supporting is 6 7mm；
(4) core box of step (2) being fixed on core making machine, be heated to 180～200 DEG C, and matched moulds, sand ejection board puts in place
Clamping, then penetrates sand, solidifies 2-4 minute, takes out core and seam is split in polishing；
(5) master mold is fixed on penetrates on sand machine worktable, swage is placed in the top of master mold, and heats template to 250～270
DEG C, and swage external form of closing, after penetrating the clamping of sand machine and putting in place, by penetrating sand machine sand-spraying hole, precoated sand is incident upon master mold and swage
Between cavity, penetrate and after sand completes, solidify 20 25s；
(6) to be solidified complete molding after 25 seconds, after natural cooling 15 20s, obtain the upper and lower swage die cavity covering sand successively,
To relevant position under core, and check and penetrate floating sand in sand blows off die cavity the most simultaneously, penetrate sand complete after can mould assembling cast
；
(7), after the upper mo(u)ld bottom half having covered sand being placed drainage screen, mould assembling clamps, and is hung on pouring platform；
(8) heat in raw material being sequentially placed into smelting furnace according to charger sheet, melt out the qualified molten iron that temperature is 1500 DEG C；
(9) use and pour method molten iron is carried out spheroidising, and measure molten iron composition, adjust composition and come out of the stove；
(10) carry out after molten iron removes slag pouring into a mould and squeeze into instantaneous ferrite inovulant, to balance during cast and can not stop and in time
Igniting, the duration of pouring is 6 minutes, and pouring temperature controls at 1000-1500 DEG C, and casting complete, after 20 minutes, is unpacked and taken out foundry goods,
I.e. obtain required cylinder-cover blank part.
The method of a kind of producing cylinder cover by sand-coated iron mould casting process the most according to claim 1, it is characterised in that described design one
Set and the on all four model of cylinder cap shape include designing and producing cylinder cap moulds of industrial equipment, running gate system, heating template and base.
The method of a kind of producing cylinder cover by sand-coated iron mould casting process the most according to claim 1, it is characterised in that described in penetrate sand machine
Sand molding machine is covered for Ka Siding.
The method of a kind of producing cylinder cover by sand-coated iron mould casting process the most according to claim 1, it is characterised in that described instantaneous ferrum
The granularity of ferritic inovulant is 0.3 0.8mm.
The method of a kind of producing cylinder cover by sand-coated iron mould casting process the most according to claim 1, it is characterised in that described nodularization
Process is to add nodulizer and the ferrosilicon of 7% that mass fraction is 0.75% in nodularization bag, and employing is poured method and poured molten iron into ball
The molten iron changing bag and obtain.
The method of a kind of producing cylinder cover by sand-coated iron mould casting process the most according to claim 1, it is characterised in that described dispensing
Single is C:3.4 3.6%；Si:2.1 2.5%；Cu:0.2 0.6%；Mn:0.1 0.5%, remaining is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775682.2A CN106311983A (en) | 2016-08-31 | 2016-08-31 | Method for producing cylinder cover by means of iron mold coated sand technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775682.2A CN106311983A (en) | 2016-08-31 | 2016-08-31 | Method for producing cylinder cover by means of iron mold coated sand technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106311983A true CN106311983A (en) | 2017-01-11 |
Family
ID=57789563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610775682.2A Pending CN106311983A (en) | 2016-08-31 | 2016-08-31 | Method for producing cylinder cover by means of iron mold coated sand technology |
Country Status (1)
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| CN (1) | CN106311983A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457366A (en) * | 2017-07-04 | 2017-12-12 | 江苏凌特精密机械有限公司 | A kind of gasoline pump cover production technology |
| CN107671246A (en) * | 2017-09-29 | 2018-02-09 | 侯马市晋烽机械铸造有限公司 | A kind of Sand-Faced Metal Mould Casting technique of casting D ends end cap |
| CN107695302A (en) * | 2017-09-29 | 2018-02-16 | 侯马市晋烽机械铸造有限公司 | A kind of Sand-Faced Metal Mould Casting technique for casting N-terminal end cap |
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
| CN109837453A (en) * | 2019-04-16 | 2019-06-04 | 郑州大学 | A kind of production method of the workbench of planer |
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| JP2001164985A (en) * | 1999-09-28 | 2001-06-19 | Kubota Corp | Cylinder block of multi-cylinder engine and casting method for same |
| CN102343421A (en) * | 2011-09-30 | 2012-02-08 | 郝国平 | Method for producing cylinder cover by sand-coated iron mould casting process |
| CN104128564A (en) * | 2014-08-20 | 2014-11-05 | 侯马市晋烽机械铸造有限公司 | Casting process of sand-lined metal mold cast nodular iron hinge lug |
| CN105108070A (en) * | 2015-09-26 | 2015-12-02 | 侯马市晋烽机械铸造有限公司 | Method for casting end cap of non-transmission end of traction motor on subway locomotive |
| CN105108060A (en) * | 2015-09-26 | 2015-12-02 | 侯马市晋烽机械铸造有限公司 | Method for casting end cap of transmission end of traction motor on subway locomotive |
| CN105478677A (en) * | 2015-12-01 | 2016-04-13 | 济南方德利模具有限公司 | Casting technology of engine cylinder cover and core assembling structure |
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- 2016-08-31 CN CN201610775682.2A patent/CN106311983A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001164985A (en) * | 1999-09-28 | 2001-06-19 | Kubota Corp | Cylinder block of multi-cylinder engine and casting method for same |
| CN102343421A (en) * | 2011-09-30 | 2012-02-08 | 郝国平 | Method for producing cylinder cover by sand-coated iron mould casting process |
| CN104128564A (en) * | 2014-08-20 | 2014-11-05 | 侯马市晋烽机械铸造有限公司 | Casting process of sand-lined metal mold cast nodular iron hinge lug |
| CN105108070A (en) * | 2015-09-26 | 2015-12-02 | 侯马市晋烽机械铸造有限公司 | Method for casting end cap of non-transmission end of traction motor on subway locomotive |
| CN105108060A (en) * | 2015-09-26 | 2015-12-02 | 侯马市晋烽机械铸造有限公司 | Method for casting end cap of transmission end of traction motor on subway locomotive |
| CN105478677A (en) * | 2015-12-01 | 2016-04-13 | 济南方德利模具有限公司 | Casting technology of engine cylinder cover and core assembling structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457366A (en) * | 2017-07-04 | 2017-12-12 | 江苏凌特精密机械有限公司 | A kind of gasoline pump cover production technology |
| CN107671246A (en) * | 2017-09-29 | 2018-02-09 | 侯马市晋烽机械铸造有限公司 | A kind of Sand-Faced Metal Mould Casting technique of casting D ends end cap |
| CN107695302A (en) * | 2017-09-29 | 2018-02-16 | 侯马市晋烽机械铸造有限公司 | A kind of Sand-Faced Metal Mould Casting technique for casting N-terminal end cap |
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
| CN109837453A (en) * | 2019-04-16 | 2019-06-04 | 郑州大学 | A kind of production method of the workbench of planer |
| CN109837453B (en) * | 2019-04-16 | 2020-05-22 | 郑州大学 | Manufacturing method of working platform of planer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170111 |