CN102632203A - Core manufacturing method of cold core - Google Patents
Core manufacturing method of cold core Download PDFInfo
- Publication number
- CN102632203A CN102632203A CN2012101383191A CN201210138319A CN102632203A CN 102632203 A CN102632203 A CN 102632203A CN 2012101383191 A CN2012101383191 A CN 2012101383191A CN 201210138319 A CN201210138319 A CN 201210138319A CN 102632203 A CN102632203 A CN 102632203A
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- China
- Prior art keywords
- core
- sand
- cold
- die cavity
- sand core
- 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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Links
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 7
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 10
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Casting Devices For Molds (AREA)
Abstract
The invention relates to a core manufacturing method of a cold core. The manufacturing method comprises the following steps: preparing a mold with a sand core type cavity; blowing sand into the sand core type cavity through a sand blowing head, and simultaneously vibrating the mold until the sand blowing is finished; and introducing a hardening gas into the sand core type cavity until the sand core in the sand core type cavity is completely hardened. According to the core manufacturing method, the defect that local sand blowing in the sand core is not compact can be effectively overcome, and the whole compactness of the sand core is increased, so that the quality of a casting surface is improved, the wall thickness of the sand core is reduced, the addition quantity of resin is reduced, the abrasion of the mold is reduced, the dimension consistency of the mold can be guaranteed for a long time, and a complicated cold core with the high quality can be manufactured.
Description
Technical field
the present invention relates to the core preparation field, particularly relate to a kind of cold core core-making method.
Background technology
are present, and conventional making core method is that the core die cavity is penetrated sand, the core sand in this core die cavity blown after penetrating sand again, make it to solidify fully.But, to complex-shaped core by existing method simple penetrate sand, core is difficult to moulding, occurs the local phenomenon unreal or that the degree of packing differs of penetrating easily, to the quality of core impact, more very the person impacts the quality of foundry goods.
Summary of the invention
the purpose of this invention is to provide a kind of cold core core-making method, penetrate to solve the core part that sand is unreal, core is difficult to problems such as moulding.
For achieving the above object, the technical scheme that the present invention adopts is:
A kind of cold core core-making method, it may further comprise the steps:
(1), prepare to have the mould of core die cavity, in described core die cavity, carry out blast through blowhead, and in blast, described mould shaken, finish until blast;
(2), in described core die cavity, introduce sclerosis gas, the core in described core die cavity hardens fully.
preferably, described mould is placed on the shock platforms, is provided with some shakes in the described shock platforms.
further preferably, vibration frequency, amplitude of vibration and the jarring force of described shake son can be adjusted through the quality of described core.
further preferably, the vibration frequency of described shake son is 40～60HZ, amplitude of vibration is 0～5mm.
preferably, the blast pressure of described blowhead is 2-3kg.
Because the technique scheme utilization, the present invention compared with prior art has advantage:
1, can effectively solve the core part and penetrate the unreal defective of sand and improve the whole degree of packing of core, thereby improve surface quality of continuous castings, minimizing core wall thickness;
2, reduce the resin addition;
3, reduce the uniformity that can guarantee die size to the wearing and tearing of mould, for a long time;
4, can make complicated high-quality cold core.
Description of drawings
accompanying drawing 1 is the structural representation of cold core coremaking device among the present invention.
wherein: 1, blowhead; 2, mould; 3, core die cavity; 4, shock platforms; 5, shake.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
A kind of cold core core-making method, it may further comprise the steps:
At first, prepare to have the mould 2 of core die cavity 3, in core die cavity 3, carry out blast through blowhead 1; And in blast, mould 2 is shaken, finish until blast, in the blast process; The blast pressure of blowhead 1 is generally 2-3kg, in the present embodiment, adopts coremaking device as shown in Figure 1; Mould 2 is placed on the shock platforms 4, is provided with some shake 5 in the shock platforms 4, when shaking; Can shake vibration frequency, amplitude of vibration and the jarring force of son 5 through the quality adjustment of core, the vibration frequency of general shake 5 is 50HZ, and amplitude of vibration is 0～5mm;
are last, in core die cavity 3, introduce sclerosis gas, and the core in core die cavity 3 hardens fully.
the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. cold core core-making method, it is characterized in that: it may further comprise the steps:
(1), prepare to have the mould of core die cavity, in described core die cavity, carry out blast through blowhead, and in blast, described mould shaken, finish until blast;
(2), in described core die cavity, introduce sclerosis gas, the core in described core die cavity hardens fully.
2. a kind of cold core core-making method according to claim 1 is characterized in that: described mould is placed on the shock platforms, is provided with some shake in the described shock platforms.
3. a kind of cold core core-making method according to claim 2 is characterized in that: vibration frequency, amplitude of vibration and the jarring force of described shake can be adjusted through the quality of described core.
4. a kind of cold core core-making method according to claim 3 is characterized in that: the vibration frequency of described shake is 40～60HZ, and amplitude of vibration is 0～5mm.
5. a kind of cold core core-making method according to claim 1 is characterized in that: the blast pressure of described blowhead is 2-3kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101383191A CN102632203A (en) | 2012-05-07 | 2012-05-07 | Core manufacturing method of cold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101383191A CN102632203A (en) | 2012-05-07 | 2012-05-07 | Core manufacturing method of cold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102632203A true CN102632203A (en) | 2012-08-15 |
Family
ID=46616884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101383191A Pending CN102632203A (en) | 2012-05-07 | 2012-05-07 | Core manufacturing method of cold core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102632203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702144A (en) * | 2017-10-25 | 2019-05-03 | 天津市东达伟业机车车辆有限公司 | A kind of sand core core box with inserted chill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129165A (en) * | 1976-11-02 | 1978-12-12 | Baker Perkins Holdings Limited | Preparation of foundry moulds and cores |
| EP0774311A1 (en) * | 1995-11-17 | 1997-05-21 | Sintokogio, Ltd. | Apparatus and method for producing a core |
| CN1163806A (en) * | 1997-01-15 | 1997-11-05 | 沈阳市铸造材料研究所 | Non-toxic air-blowing hardening core-making method |
| EP1449602A1 (en) * | 2003-02-04 | 2004-08-25 | General Motors Corporation | Method of sand coremaking |
| CN101486070A (en) * | 2008-12-05 | 2009-07-22 | 苏州明志科技有限公司 | Vibrating sand-shooting cold core box |
| CN102189226A (en) * | 2011-03-25 | 2011-09-21 | 苏州明志科技有限公司 | Cold box core shooting device |
-
2012
- 2012-05-07 CN CN2012101383191A patent/CN102632203A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129165A (en) * | 1976-11-02 | 1978-12-12 | Baker Perkins Holdings Limited | Preparation of foundry moulds and cores |
| EP0774311A1 (en) * | 1995-11-17 | 1997-05-21 | Sintokogio, Ltd. | Apparatus and method for producing a core |
| CN1163806A (en) * | 1997-01-15 | 1997-11-05 | 沈阳市铸造材料研究所 | Non-toxic air-blowing hardening core-making method |
| EP1449602A1 (en) * | 2003-02-04 | 2004-08-25 | General Motors Corporation | Method of sand coremaking |
| CN101486070A (en) * | 2008-12-05 | 2009-07-22 | 苏州明志科技有限公司 | Vibrating sand-shooting cold core box |
| CN102189226A (en) * | 2011-03-25 | 2011-09-21 | 苏州明志科技有限公司 | Cold box core shooting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702144A (en) * | 2017-10-25 | 2019-05-03 | 天津市东达伟业机车车辆有限公司 | A kind of sand core core box with inserted chill |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120815 |