CN104028700A - Cylinder body water jacket core and preparation method thereof - Google Patents
Cylinder body water jacket core and preparation method thereof Download PDFInfo
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- CN104028700A CN104028700A CN201410240382.5A CN201410240382A CN104028700A CN 104028700 A CN104028700 A CN 104028700A CN 201410240382 A CN201410240382 A CN 201410240382A CN 104028700 A CN104028700 A CN 104028700A
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Abstract
The invention discloses a cylinder body water jacket core and a preparation method thereof. The cylinder body water jacket core comprises a cold core main body, wherein the cold core main body is provided with a plurality of cylinder cup cavities for casting cylinder cups; the cylinder cup cavities are formed in parallel, and the axle centers of the cylinder cup cavities are positioned on the same one straight line; the two cylinder cup cavities are separated through sheet heat cores; and the sheet heat cores are fixed on the cold core main body. The water jacket core has the advantages of high precision of cold core size, small deformation and high efficiency, and also has the advantages of high strength of the heat cores and prevention of deformation of sheet areas. The water jacket core effectively solves the problem of large difference among the thicknesses of the cylinder body water jacket cores, fully executes the advantages of a cold core process and a heat core process, prevents the process limitation, and enables the production efficiency to be not influenced by the structure problem of the water jacket core.
Description
Technical field
The present invention relates to the core using in a kind of cast blocks technology, relate to specifically a kind of cold core jacket core and preparation method thereof.
Background technology
At present, the jacket core section thickness of engine cylinder-body is between 6-10mm, and jacket core all adopts cold core process to produce, highly efficient in productivity and casting quality is very stable.But be only the engine cylinder-body of 3mm for some jacket cores thickness between two cylinder cups, if produced with cold core process, in coremaking process, due to thinner herein, sand core strength is inadequate, core will produce top and split or crackle when ejecting core box, occurs that the probability thrusting will be very large, and then have a strong impact on casting quality in the casting process of molten metal.
Mould to jacket core thinner thickness, generally all adopt hot core explained hereafter, to guarantee that core has larger intensity opposing from the impact of high-temperature liquid metal, but for some jacket core more complicated, and core box need to design the cylinder body of four opening structures, the layout of its heating tube is very difficult, and the deflection of hot core is larger than cold core, production efficiency is slower, therefore only adopts hot core mold still can not meet casting composite request.
Summary of the invention
Technical problem to be solved by this invention is: existing cylinder body cold core core box can not be for the thinner jacket core of cast thickness, and hot core core box mould is produced difficulty, and deflection is large, production efficiency is low.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A cylinder body water jacket core, it comprises cold core body, and described cold core body is provided with several for casting the cylinder cup die cavity of cylinder cup, and described cylinder cup die cavity is arranged side by side, and the axle center of described cylinder cup die cavity is located along the same line; Described in two, between cylinder cup die cavity, by the hot core of thin slice, separate, the hot core of described thin slice is fixedly installed on described cold core body.
Preferably, the hot core of described thin slice is one-body molded on described cold core body.
Preferably, the both sides that are connected with described cold core body of the hot core of described thin slice are respectively equipped with for strengthening the enhancing portion of described cold core body and the hot core bonding strength of described thin slice.
Preferably, described enhancing portion is the groove being arranged on the hot core of described thin slice, and the length direction of described groove is consistent with the axial direction of described cylinder cup die cavity, and described groove is embedded in described cold core body interior.
Preferably, the both sides, end that are connected with described cold core body of the hot core of described thin slice are respectively arranged with a described groove, and described in two, groove is arranged symmetrically with.
A preparation method for cylinder body water jacket core, comprises the steps:
S1: adopt hot core technique to make the hot core of thin slice;
S2: while adopting cold core process to make cylinder body water jacket core, after the hot core of placing sheets, adopt catalyst to cylinder body water jacket core sand core one curing molding in cold-box.
Preferably, the wall thickness of the hot core of described thin slice is 3mm.
Preferably, described catalyst is gas catalyst or curing agent.
Preferably, described catalyst is triethylamine solid gas.
Adopt technique scheme, the present invention at least comprises following beneficial effect:
(1) cylinder body water jacket core of the present invention, adopt the hot core of thin slice and the combination of cold core body, and directly the hot core one of thin slice is solidificated in to jacket core inside when making cold core body, make like this jacket core of the present invention both had cold core dimensional accuracy high, be out of shape the advantage little, efficiency is high, there is again hot core intensity high, can avoid the advantage of thin slice district distortion.
(2) preparation method of cylinder body water jacket core of the present invention, by the mode that cold core process is combined with hot core technique, design the making of cylinder body water jacket core, efficiently solve the larger problem of cylinder body water jacket core difference in thickness, given full play to the advantage of cold core process and hot core technique, avoided the limitation of technique, also made production efficiency not be subject to the impact of water-jacket core structure problem.
accompanying drawing explanation
Fig. 1 is the structural representation of cylinder body water jacket core of the present invention;
Fig. 2 is the structural representation of the hot core of thin slice in cylinder body water jacket core of the present invention;
Fig. 3 is preparation method's flow chart of cylinder body water jacket core of the present invention.
Wherein: 1. cold core body, the 2. hot core of thin slice, 21. grooves, 3. cylinder cup die cavity.
the specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
embodiment 1
As shown in Figure 1 to Figure 2, for a kind of cylinder body water jacket core according to the invention, it comprises cold core body 1, and described cold core body 1 is provided with several for casting the cylinder cup die cavity 3 of cylinder cup, described cylinder cup die cavity 3 is arranged side by side, and the axle center of described cylinder cup die cavity 3 is located along the same line; Described in two, between cylinder cup die cavity 3, by the hot core 2 of thin slice, separate, the hot core 2 of described thin slice is one-body molded on described cold core body 1.
In the present embodiment, the both sides that are connected with described cold core body 1 of the hot core 2 of described thin slice are respectively equipped with for strengthening the enhancing portion of described cold core body 1 and hot core 2 bonding strengths of described thin slice, described enhancing portion is the groove 21 being arranged on the hot core 2 of described thin slice, the length direction of described groove 21 is consistent with the axial direction of described cylinder cup die cavity 3, and described groove 21 is embedded in described cold core body 1 inside.And the both sides, end that are connected with described cold core body 1 of the hot core 2 of described thin slice are respectively arranged with a described groove 21, and described in two, groove 21 is arranged symmetrically with, the top view of the position being connected with described cold core body 1 of the hot core 2 of described thin slice is " work " character form structure substantially, and " work " character form structure of the hot core 2 of described thin slice is molded over the body interior of described cold core body 1.
Because cylinder body water jacket core of the present invention is by the hot core 2 of thin slice and 1 combination one-body molded of cold core body, and the hot core 2 of thin slice is arranged on to the boundary of two cylinder cup die cavities 3, this cylinder body water jacket core both had cold core dimensional accuracy high, be out of shape little, efficiency is a little high, there is again Re Xin thin slice district intensity large simultaneously, the advantage that high-temperature liquid metal impacts can be resisted, cylinder block casting quality can be improved.
embodiment 2
As shown in Figure 3, referring to Fig. 1 and Fig. 2, a kind of preparation method of the cylinder body water jacket core based on described in embodiment 1, it comprises the steps:
S1: adopt hot core technique to make the hot core 2 of thin slice;
S2: while adopting cold core process to make cylinder body water jacket core, first after the hot core 2 of placing sheets, adopt catalyst to cylinder body water jacket core sand core one curing molding in cold-box.
Preferably the wall thickness of the hot core 2 of described thin slice is 3mm, and described catalyst is gas catalyst or curing agent, and more preferably described catalyst is triethylamine solid gas.Those skilled in the art should know, and technical scheme described above is preferably embodiment, and not for the restriction for the present embodiment, any apparent variation and replacement are all within the protection domain of the present embodiment.Simultaneously because described hot core technique and described cold core process are those skilled in the art's routine techniques means, so locate do not repeating.
The present embodiment is first made wall thickness at the hot core 2 of thin slice of 3mm with hot core, when cold core is produced jacket core, and elder generation's hot core 1 of placing sheets in cold-box, then the whole cylinder body water jacket core of catalytic curing, makes the hot core 2 of described thin slice one-body molded with described cold core body 1.
The present embodiment adopts the mode that cold core process is combined with hot core technique to make cylinder body water jacket core, efficiently solve the larger problem of cylinder body water jacket core difference in thickness, and given full play to the advantage of cold core process and hot core technique, avoided the limitation of technique, also made production efficiency not be subject to the impact of water-jacket core structure problem.
Above embodiments of the invention are had been described in detail, but described content is only the preferred embodiment of the invention, can not be considered to for limiting the practical range of the invention.All equalization variations of doing according to the invention application range and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (9)
1. a cylinder body water jacket core, is characterized in that: comprise cold core body, described cold core body is provided with several for casting the cylinder cup die cavity of cylinder cup, and described cylinder cup die cavity is arranged side by side, and the axle center of described cylinder cup die cavity is located along the same line; Described in two, between cylinder cup die cavity, by the hot core of thin slice, separate, the hot core of described thin slice is fixedly installed on described cold core body.
2. cylinder body water jacket core as claimed in claim 1, is characterized in that: the hot core of described thin slice is one-body molded on described cold core body.
3. cylinder body water jacket core as claimed in claim 2, is characterized in that: the both sides that are connected with described cold core body of the hot core of described thin slice are respectively equipped with for strengthening the enhancing portion of described cold core body and the hot core bonding strength of described thin slice.
4. cylinder body water jacket core as claimed in claim 3, it is characterized in that: described enhancing portion is the groove being arranged on the hot core of described thin slice, the length direction of described groove is consistent with the axial direction of described cylinder cup die cavity, and described groove is embedded in described cold core body interior.
5. the cylinder body water jacket core as described in as arbitrary in claim 1-4, is characterized in that: the both sides, end that are connected with described cold core body of the hot core of described thin slice are respectively arranged with a described groove, and described in two, groove is arranged symmetrically with.
6. the preparation method based on the arbitrary described cylinder body water jacket core of claim 1-5, is characterized in that, comprises the steps:
S1: adopt hot core technique to make the hot core of thin slice;
S2: while adopting cold core process to make cylinder body water jacket core, after the hot core of placing sheets, adopt catalyst to cylinder body water jacket core sand core one curing molding in cold-box.
7. the preparation method of cylinder body water jacket core as claimed in claim 6, is characterized in that, the wall thickness of the hot core of described thin slice is 3mm.
8. the preparation method of cylinder body water jacket core as claimed in claim 7, is characterized in that, described catalyst is gas catalyst or curing agent.
9. the preparation method of the cylinder body water jacket core as described in as arbitrary in claim 6-8, is characterized in that, described catalyst is triethylamine solid gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240382.5A CN104028700A (en) | 2014-06-03 | 2014-06-03 | Cylinder body water jacket core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240382.5A CN104028700A (en) | 2014-06-03 | 2014-06-03 | Cylinder body water jacket core and preparation method thereof |
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| CN104028700A true CN104028700A (en) | 2014-09-10 |
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| CN201410240382.5A Pending CN104028700A (en) | 2014-06-03 | 2014-06-03 | Cylinder body water jacket core and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215269A (en) * | 2015-09-29 | 2016-01-06 | 翼城县飞翔泰信铸造有限公司 | A kind of engine cylinder-body cold box process casting process |
| CN107695285A (en) * | 2017-10-17 | 2018-02-16 | 淄博柴油机总公司 | The sand mulling craft of jacket core in diesel engine cylinder cover cast blank |
| CN105215269B (en) * | 2015-09-29 | 2019-07-16 | 翼城县飞翔泰信铸造有限公司 | A kind of engine cylinder body cold box process casting process |
| CN110691660A (en) * | 2017-08-04 | 2020-01-14 | 宝马股份公司 | Casting mold and method for producing a crankcase |
| CN111957900A (en) * | 2020-07-29 | 2020-11-20 | 东风商用车有限公司 | Replaceable drain sleeve core for casting engine cylinder cover |
| CN113275513A (en) * | 2021-04-16 | 2021-08-20 | 威斯卡特工业（中国）有限公司 | Cold core making process and device |
| CN114833310A (en) * | 2021-02-01 | 2022-08-02 | 通用汽车环球科技运作有限责任公司 | Forming chill for forming a casting apparatus |
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| JPH01258844A (en) * | 1988-04-07 | 1989-10-16 | Kiriyuu Kikai Kk | Water jacket core for cylinder block |
| US4917169A (en) * | 1987-08-20 | 1990-04-17 | AVL Gessellschaft fur Verbrennungskraftmaschinen und Messtechnik | Casting core for a water jacket |
| US5217059A (en) * | 1992-01-16 | 1993-06-08 | Cmi International | Casting core and method for forming a water jacket chamber within a cast cylinder block |
| JPH1024347A (en) * | 1996-07-10 | 1998-01-27 | Toyota Autom Loom Works Ltd | Core for water jacket of engine and core piece for forming hole as cast between cylinder bores |
| US6298899B1 (en) * | 1999-07-13 | 2001-10-09 | Ford Global Tech., Inc. | Water jacket core |
| EP2727668A1 (en) * | 2012-11-06 | 2014-05-07 | Martinrea Honsel Germany GmbH | Method for producing a cylinder crankcase and casting assembly for a cylinder crankcase |
| CN203887163U (en) * | 2014-06-03 | 2014-10-22 | 芜湖永达科技有限公司 | Cylinder water jacket core |
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| US4917169A (en) * | 1987-08-20 | 1990-04-17 | AVL Gessellschaft fur Verbrennungskraftmaschinen und Messtechnik | Casting core for a water jacket |
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| US5217059A (en) * | 1992-01-16 | 1993-06-08 | Cmi International | Casting core and method for forming a water jacket chamber within a cast cylinder block |
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| EP2727668A1 (en) * | 2012-11-06 | 2014-05-07 | Martinrea Honsel Germany GmbH | Method for producing a cylinder crankcase and casting assembly for a cylinder crankcase |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215269A (en) * | 2015-09-29 | 2016-01-06 | 翼城县飞翔泰信铸造有限公司 | A kind of engine cylinder-body cold box process casting process |
| CN105215269B (en) * | 2015-09-29 | 2019-07-16 | 翼城县飞翔泰信铸造有限公司 | A kind of engine cylinder body cold box process casting process |
| CN110691660A (en) * | 2017-08-04 | 2020-01-14 | 宝马股份公司 | Casting mold and method for producing a crankcase |
| US11420251B2 (en) | 2017-08-04 | 2022-08-23 | Bayerische Motoren Werke Aktiengesellscaft | Casting mold and process for manufacturing a crankcase |
| CN107695285A (en) * | 2017-10-17 | 2018-02-16 | 淄博柴油机总公司 | The sand mulling craft of jacket core in diesel engine cylinder cover cast blank |
| CN111957900A (en) * | 2020-07-29 | 2020-11-20 | 东风商用车有限公司 | Replaceable drain sleeve core for casting engine cylinder cover |
| CN111957900B (en) * | 2020-07-29 | 2022-03-18 | 东风商用车有限公司 | Replaceable drain sleeve core for casting engine cylinder cover |
| CN114833310A (en) * | 2021-02-01 | 2022-08-02 | 通用汽车环球科技运作有限责任公司 | Forming chill for forming a casting apparatus |
| CN114833310B (en) * | 2021-02-01 | 2024-04-30 | 通用汽车环球科技运作有限责任公司 | Shaping cooling core for forming casting device |
| CN113275513A (en) * | 2021-04-16 | 2021-08-20 | 威斯卡特工业（中国）有限公司 | Cold core making process and device |
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Application publication date: 20140910 |