CN105364020A - Flywheel cast and non-riser casting method for flywheel cast - Google Patents
Flywheel cast and non-riser casting method for flywheel cast Download PDFInfo
- Publication number
- CN105364020A CN105364020A CN201510879905.5A CN201510879905A CN105364020A CN 105364020 A CN105364020 A CN 105364020A CN 201510879905 A CN201510879905 A CN 201510879905A CN 105364020 A CN105364020 A CN 105364020A
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- flywheel
- mold
- casting mold
- sand mold
- casting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a flywheel cast and a non-riser casting method for the flywheel cast. The flywheel cast comprises an upper cast sand mold and a lower cast sand mold which are overlapped up and down, wherein the flywheel cavities are correspondingly arranged on the upper cast sand mold and the lower cast sand mold, a cylinder clay core is arranged at the center of the flywheel cast of the lower cast sand mold, the top of the cylinder clay core is clung to the flywheel cavity of the upper cast sand mold, the upper cast sand mold is provided with an air passage located right above the cylinder clay core, the upper cast sand mold is provided with a sprue, the lower cast sand mold is provided with an ingate, the sprue communicates with the ingate, the ingate communicates with the flywheel cavity, and the bottom of the sprue is provided with a filtering net. The method comprises the steps of production of the cylinder clay core, production of a lower sand mold, dropping of the cylinder clay core and the filtering net, production of an upper sand mold, box closing and fastening, pouring, box opening and casting cleaning. The method has the advantages of being simple and reasonable in structure, convenient for production and processing, high in yield, and low in cost and rejection rate.
Description
Technical field
The invention relates to machine casting field, particularly a kind of flywheel casting mold of engine and the riser-free casting method of this flywheel casting mold.
Background technology
Flywheel is the rotating mechanism a kind ofly having suitable rotary inertia, play storage and the effect of release kinetic energy, is used for reducing the velocity perturbation of mechanical operation process.At present, the casting of flywheel adopts green-sand forging type to carry out mostly, is provided with longer running channel and rising head, runner system melts down and brings very big inconvenience to casting, and this mode reduces the product yield of foundry goods, adds manufacturing procedure, and easily there is burning into sand, cinder hole and lift the defects such as case.For this reason, many manufacturers and knowledgeable people develop for the defect of above-mentioned existence and develop, but not yet have comparatively ideal product to emerge so far.
Summary of the invention
For overcoming above shortcomings in existing flywheel casting mold and casting process, first object of the invention is to provide a kind of simple and reasonable, easy for operation, high-quality and efficient flywheel casting mold, and another object improves the riser-free casting method that technological process is short, yield rate is high, percent defective is low, production cost is economized.
The invention solves the problems of the technologies described above adopted technical scheme, flywheel casting mold comprises up and down sand mold under sand mold and casting mold on the overlapping casting mold placed, it is characterized in that: on described casting mold, under sand mold and casting mold, on sand mold, correspondence is provided with flywheel die cavity, under casting mold, the flywheel die cavity center of sand mold is provided with cylinder loam core, the top in cylinder loam core is close on the flywheel die cavity of sand mold on casting mold, on described casting mold, sand mold is provided with the air flue be positioned at directly over cylinder loam core, on described casting mold, sand mold is provided with sprue, under casting mold, sand mold is provided with ingate, sprue is communicated with ingate, ingate is communicated with flywheel die cavity, filter net sheet is provided with bottom described sprue.
The further scheme of the invention, described sprue is arranged on directly over flywheel arm lightening hole.
The further scheme of the invention, the bottom of described sprue is taper.
The further scheme of the invention, described filter net sheet is that fire clay makes, and coincide bottom profile and sprue.
The further scheme of the invention, described cylinder loam core adopts cold core sand to make, with the demoulding tapering of 1:10.
Described in the invention, the riser-free casting method of flywheel casting mold, comprises the steps:
Step 1 rounding post loam core: use cold new mechanism to do cylinder loam core;
Sand mold under step 2 casting mold processed: sand mold under use moulding machine making casting mold;
Step 3 falls into cylinder loam core and filter net sheet: under the casting mold made, sand mold falls into cylinder loam core and filter net sheet put into by sand mold under the casting mold of sprue bottom position;
Sand mold on step 4 casting mold processed: use moulding machine to make sand mold on casting mold;
Step 5 mould assembling and fastening: on casting mold, under sand mold and casting mold, sand mold merges, and fastening with box fastener;
Step 6 is poured into a mould: be that 1380 DEG C ~ 1450 DEG C molten iron inject flywheel die cavity from sprue and ingate by temperature, the duration of pouring is 13 seconds ~ 17 seconds;
Step 7 is unpacked and cleaning foundry goods: Shake-out Time is 40 points ~ 45 points, opens sandbox and is taken out by Wheel casting, cleaning cast gate and burr.
The further scheme of the invention, described flywheel material is casting pig, aluminium alloy or steel.
Adopt after the invention, have the following advantages compared with the prior art and effect: one is that pouring technology design is more reasonable, compared with existing rising head pour into a mould from flywheel rim, because flywheel arm is thinner than flywheel rim, cast residue is remaining better clears up; Compared with flywheel rim surface, after casting complete, lightening hole can be processed.Two is that product yield is high, and have rising head compared with the flywheel casting method without rising head, product yield brings up to 91.7% from 78.3%.Three is that production cost is low, has rising head compared with the flywheel casting method without rising head, cost-saving 27 yuan of every flywheel.Four is that percent defective is low, and new casting mold and the application of casting method decrease cinder hole, lift the casting flaw such as case and scab, improve product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention.
Fig. 2 is the flywheel schematic diagram of the invention.
Wherein 1 flywheel die cavity, 2 ingates, 3 filter net sheets, 4 sprues, 5 air flues, sand mold on 6 casting molds, 7 cylinder loam cores, sand mold under 8 casting molds, 11 wheel rims, 12 spokes, 13 wheel hubs, 14 lightening holes.
Detailed description of the invention
Shown in Fig. 1 and Fig. 2, be a kind of flywheel casting mold of the invention and the riser-free casting method specific embodiments of this flywheel casting mold, flywheel of the present invention is made up of wheel rim 11, spoke 12, wheel hub 13 and lightening hole 14, and the material of described flywheel is casting pig.
Flywheel casting mold described in the invention comprises up and down sand mold 8 under sand mold 6 and casting mold on the overlapping casting mold placed, on described casting mold, under sand mold 6 and casting mold, on sand mold 8, correspondence is provided with flywheel die cavity 1, under casting mold, flywheel die cavity 1 center of sand mold 8 is provided with cylinder loam core 7, the top in cylinder loam core 7 is close on the flywheel die cavity 1 of sand mold 6 on casting mold, on described casting mold, sand mold 6 is provided with the air flue 5 be positioned at directly over cylinder loam core 7, on described casting mold, sand mold 6 is provided with sprue 4, under casting mold, sand mold 8 is provided with ingate 2, sprue 4 is communicated with ingate 2, ingate 2 is communicated with flywheel die cavity 1, filter net sheet 3 is provided with bottom described sprue 4.
Described sprue 4 is arranged on directly over flywheel arm 12 lightening hole 14, molten iron enters flywheel die cavity 1 by sprue 4 and ingate 2, because spoke 12 is thinner than wheel rim 11, is easy to remove remnants, and lightening hole 14 belongs to non-machined surface, processing technology can be reduced.In order to prevent shrinkage, the bottom of described sprue 4 is taper.Affect filter effect to prevent filter net sheet 3 in casting process from floating, described filter net sheet 3 makes for fire clay, coincide bottom profile and sprue 4.For the ease of molding, described cylinder loam core 7 adopts cold core sand to make, with the demoulding tapering of 1:10, simultaneously also consistent with the centre bore tapering of flywheel.
Described in the invention, the riser-free casting method of flywheel casting mold, comprises the steps:
Step 1 rounding post loam core 7: use cold new mechanism to do cylinder loam core 7;
Sand mold 8 under step 2 casting mold processed: sand mold 8 under use moulding machine making casting mold;
Step 3 falls into cylinder loam core 7 and filter net sheet 3: under the casting mold made, sand mold 8 falls into cylinder loam core 7 and filter net sheet 3 put into by sand mold 8 under the casting mold of sprue 4 bottom position;
Sand mold 6 on step 4 casting mold processed: use moulding machine to make sand mold 6 on casting mold;
Step 5 mould assembling and fastening: on casting mold, sand mold 6 merges with sand mold 8 under casting mold, and fastening with box fastener;
Step 6 is poured into a mould: be that 1380 DEG C ~ 1450 DEG C molten iron inject flywheel die cavity 1 from sprue 4 and ingate 2 by temperature, the duration of pouring is 13 seconds ~ 17 seconds;
Step 7 is unpacked and cleaning foundry goods: Shake-out Time is 40 points ~ 45 points, opens sandbox and is taken out by Wheel casting, cleaning cast gate and burr.
The above; just an embodiment of the invention, not makes any pro forma restriction, on the technical scheme basis not departing from the invention to the invention; done simple modification, equivalent variations or modification, all fall into the protection domain of the invention.
Claims (7)
1. a flywheel casting mold, comprise up and down sand mold under sand mold and casting mold on the overlapping casting mold placed, it is characterized in that: on described casting mold, under sand mold and casting mold, on sand mold, correspondence is provided with flywheel die cavity, under casting mold, the flywheel die cavity center of sand mold is provided with cylinder loam core, the top in cylinder loam core is close on the flywheel die cavity of sand mold on casting mold, on described casting mold, sand mold is provided with the air flue be positioned at directly over cylinder loam core, on described casting mold, sand mold is provided with sprue, under casting mold, sand mold is provided with ingate, sprue is communicated with ingate, ingate is communicated with flywheel die cavity, filter net sheet is provided with bottom described sprue.
2. flywheel casting mold according to claim 1, is characterized in that: described sprue is arranged on directly over flywheel arm lightening hole.
3. flywheel casting mold according to claim 1, is characterized in that: the bottom of described sprue is taper.
4. flywheel casting mold according to claim 1, is characterized in that: described filter net sheet is that fire clay makes, and coincide bottom profile and sprue.
5. flywheel casting mold according to claim 1, is characterized in that: described cylinder loam core adopts cold core sand to make, with the demoulding tapering of 1:10.
6. the riser-free casting method of flywheel casting mold according to any one of claim 1 to 5, is characterized in that: comprise the steps:
Step 1 rounding post loam core: use cold new mechanism to do cylinder loam core;
Sand mold under step 2 casting mold processed: sand mold under use moulding machine making casting mold;
Step 3 falls into cylinder loam core and filter net sheet: under the casting mold made, sand mold falls into cylinder loam core and filter net sheet put into by sand mold under the casting mold of sprue bottom position;
Sand mold on step 4 casting mold processed: use moulding machine to make sand mold on casting mold;
Step 5 mould assembling and fastening: on casting mold, under sand mold and casting mold, sand mold merges, and fastening with box fastener;
Step 6 is poured into a mould: be that 1380 DEG C ~ 1450 DEG C molten iron inject flywheel die cavity from sprue and ingate by temperature, the duration of pouring is 13 seconds ~ 17 seconds;
Step 7 is unpacked and cleaning foundry goods: Shake-out Time is 40 points ~ 45 points, opens sandbox and is taken out by Wheel casting, cleaning cast gate and burr.
7. the riser-free casting method of flywheel casting mold according to claim 6, is characterized in that: described flywheel material is casting pig, aluminium alloy or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879905.5A CN105364020B (en) | 2015-12-06 | 2015-12-06 | The riser-free casting method of flywheel casting mold and the flywheel casting mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879905.5A CN105364020B (en) | 2015-12-06 | 2015-12-06 | The riser-free casting method of flywheel casting mold and the flywheel casting mold |
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| Publication Number | Publication Date |
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| CN105364020A true CN105364020A (en) | 2016-03-02 |
| CN105364020B CN105364020B (en) | 2017-11-17 |
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| CN201510879905.5A Active CN105364020B (en) | 2015-12-06 | 2015-12-06 | The riser-free casting method of flywheel casting mold and the flywheel casting mold |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665651A (en) * | 2016-04-11 | 2016-06-15 | 杨朝平 | Flywheel casting mold |
| CN106040983A (en) * | 2016-07-20 | 2016-10-26 | 大连金河铸造有限公司 | Improved technology for belt wheel casting and pouring system of improved technology |
| CN106493306A (en) * | 2016-11-08 | 2017-03-15 | 广西玉柴机器股份有限公司 | The casting method of the bell housing with gear chamber cover |
| CN109128029A (en) * | 2018-10-29 | 2019-01-04 | 扬州广润机械有限公司 | A kind of flywheel shell of engine tide mould sand build-in function film covered sand core casting mould |
| CN110976765A (en) * | 2019-12-25 | 2020-04-10 | 徐州万佳机电设备制造有限公司 | Iron casting method with long service life |
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| JPS5884639A (en) * | 1981-11-12 | 1983-05-20 | Masami Michihiro | Mold for wheel |
| CN101445853A (en) * | 2007-11-28 | 2009-06-03 | 上海华新合金有限公司 | Method for casting elevator as-cast ball iron towing pulley |
| CN101530893A (en) * | 2009-04-29 | 2009-09-16 | 淮阴工学院 | Gating system for light alloy castings of wheels |
| CN101585078A (en) * | 2008-05-23 | 2009-11-25 | 上海华新合金有限公司 | Method for casting as-cast high-tenacity cast iron bearing cover of locomotive |
| CN203843115U (en) * | 2014-05-14 | 2014-09-24 | 佛山市南海中南铝车轮制造有限公司 | Gravity casting mould of aluminum alloy motorcycle hub |
| CN104439063A (en) * | 2014-12-16 | 2015-03-25 | 苏州市通润机械铸造有限公司 | Sand mold structure for reducing seepage defects in ductile iron produced from furan resin sand |
| CN204430204U (en) * | 2014-12-11 | 2015-07-01 | 重庆全悦祥精密锻造机械工业有限公司 | A kind of mould for automotive hub outer ring |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5884639A (en) * | 1981-11-12 | 1983-05-20 | Masami Michihiro | Mold for wheel |
| CN101445853A (en) * | 2007-11-28 | 2009-06-03 | 上海华新合金有限公司 | Method for casting elevator as-cast ball iron towing pulley |
| CN101585078A (en) * | 2008-05-23 | 2009-11-25 | 上海华新合金有限公司 | Method for casting as-cast high-tenacity cast iron bearing cover of locomotive |
| CN101530893A (en) * | 2009-04-29 | 2009-09-16 | 淮阴工学院 | Gating system for light alloy castings of wheels |
| CN203843115U (en) * | 2014-05-14 | 2014-09-24 | 佛山市南海中南铝车轮制造有限公司 | Gravity casting mould of aluminum alloy motorcycle hub |
| CN204430204U (en) * | 2014-12-11 | 2015-07-01 | 重庆全悦祥精密锻造机械工业有限公司 | A kind of mould for automotive hub outer ring |
| CN104439063A (en) * | 2014-12-16 | 2015-03-25 | 苏州市通润机械铸造有限公司 | Sand mold structure for reducing seepage defects in ductile iron produced from furan resin sand |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665651A (en) * | 2016-04-11 | 2016-06-15 | 杨朝平 | Flywheel casting mold |
| CN106040983A (en) * | 2016-07-20 | 2016-10-26 | 大连金河铸造有限公司 | Improved technology for belt wheel casting and pouring system of improved technology |
| CN106040983B (en) * | 2016-07-20 | 2018-11-20 | 大连金河铸造有限公司 | The improvement technique and its running gate system of belt pulley casting |
| CN106493306A (en) * | 2016-11-08 | 2017-03-15 | 广西玉柴机器股份有限公司 | The casting method of the bell housing with gear chamber cover |
| CN106493306B (en) * | 2016-11-08 | 2018-05-11 | 广西玉柴机器股份有限公司 | The casting method of bell housing with gear chamber cover |
| CN109128029A (en) * | 2018-10-29 | 2019-01-04 | 扬州广润机械有限公司 | A kind of flywheel shell of engine tide mould sand build-in function film covered sand core casting mould |
| CN109128029B (en) * | 2018-10-29 | 2023-09-12 | 扬州广润机械有限公司 | Built-in functional tectorial membrane psammitolite casting mould of engine flywheel shell tide mould sand |
| CN110976765A (en) * | 2019-12-25 | 2020-04-10 | 徐州万佳机电设备制造有限公司 | Iron casting method with long service life |
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|---|---|
| CN105364020B (en) | 2017-11-17 |
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Effective date of registration: 20220617 Address after: 321302 No. 8, Sifang Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG SIFANG Co.,Ltd. Address before: No. 57, YONGTUO Road, Yongkang City, Jinhua City, Zhejiang 321300 Patentee before: ZHEJIANG SIFANG Group Corp. |