CN104001870A - Method for modeling aluminum-nickel-cobalt magnet steel through sand ejecting - Google Patents
Method for modeling aluminum-nickel-cobalt magnet steel through sand ejecting Download PDFInfo
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- CN104001870A CN104001870A CN201410128496.0A CN201410128496A CN104001870A CN 104001870 A CN104001870 A CN 104001870A CN 201410128496 A CN201410128496 A CN 201410128496A CN 104001870 A CN104001870 A CN 104001870A
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Abstract
The invention relates to aluminum-nickel-cobalt magnet steel, in particular to a method for modeling aluminum-nickel-cobalt magnet steel through sand ejecting. The method mainly solves the technical problems that in the prior art, when modeling is conducted through an existing pouring process, labor intensity of operation is high and production efficiency is low. The method includes the steps that refined quartz sand and powdery phenolic resin are selected to serve as bonding and cleaning agents, urotropine is selected to serve as a curing agent, and the refined quartz, the phenolic resin and the urotropine are heated till the temperature reaches 120 DEG C to 150 DEG C and are then uniformly mixed to form precoated sand; a heating stick is arranged in a heating mechanism of a modeling mold and is powered on, and then the temperature rises; and after the mold is closed, a sand ejecting head of a sand ejecting machine enters a sand inlet of the modeling mold, sand ejecting is conducted on the precoated sand for 3 seconds to 10 seconds, the sand ejecting head moves out of the sand inlet of the modeling mold, and curing is then conducted for 1 minute to 5 minutes, and mold opening and core ejecting are achieved. The steps of the method are automatically completed through computer programming in order and executed in a circulating mode, and finally a sand mold of an aluminum-nickel-cobalt magnet steel casting is produced.
Description
Technical field
The present invention relates to a kind of alnico magnet, especially relate to a kind of alnico magnet and penetrate sand molding method.
Background technology
Permanent-magnet material has the highest Curie temperature (1133K) and low-down remanent magnetism reversible temperature coefficient (be better than one 0.02%/DEG C) among permanent-magnet material, more than its operating temperature can arrive 873K, have very excellent temperature stability just because of it, in some accurate magnetic devices, (as high-precision meters such as the gyroscope in inertial navigation system and accelerometer, microwave tube, travelling-wave tubes) is widely used.Chinese patent discloses a kind of aluminium one nickel one and has bored permanent-magnet alloy vacuum-assist pouring Processes and apparatus (publication number: CN 1107398A), it is using the parallel close-packed arrays of isometric porcelain tube as model, between pipe, enrich by molding sand bonding in gap, put the porcelain tube assembling into vacuum pouring sandbox, around tamp with molding sand, put preheating in preheating furnace into, be controlled at 100-1000 DEG C according to alloying component various preheat temperature, insulation 2-8 hour, taking out sandbox is connected in vacuum system, make vacuum reach 3 × 10-3 × 10 hour, from gate cast molten alloy, gate is 70-100mm, a kind of aluminium-nickel-negative pressure casting of permanent-magnet Al-Ni-Co alloy equipment, is mainly a vacuum pouring sandbox, by gate, and sand box cover, sandbox body, molding sand, bunchy porcelain tube, vacuum road, vacuum pipe, valve, vacuum meter forms, funnelform sprue gate is arranged at gate top, sandbox is made up of case lid and casing, salable therebetween, box cavity right-hand member connects gate, and box cavity left end connects vacuum road, above connects vacuum system, be equipped with valve and vacuum meter therebetween, the porcelain tube of assembling bunchy is placed in the middle of sandbox, the molding sand of filling around, porcelain tube two termination vacuum road and gates.But the labour intensity of this pouring technology operation in the time carrying out moulding is larger, and production efficiency is lower.
Summary of the invention
The present invention is to provide a kind of alnico magnet and penetrates sand molding method, and it is mainly that to solve the labour intensity of the existing pouring technology of prior art operation in the time carrying out moulding larger, the technical problem of the lower grade of production efficiency.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of alnico magnet of the present invention is penetrated sand molding method, it is characterized in that described method comprises:
A. select purity quartzite, powdered phenol-formaldehyde resin is adhesive, methenamine is curing agent, purity quartzite, phenolic resins, methenamine are mixed after being heated to 120-150 DEG C, form precoated sand, wherein phenolic resins weight accounts for the 4%-6% of purity quartzite weight, and the weight of methenamine accounts for the 20-30% into phenolic resins weight;
B. handle modeling mould is installed to penetrate on sand machine and adjusts good position, and the sand inlet on mould frame is aimed at the sand jet outlet of penetrating on sand machine;
C. heating rod is installed in the heating arrangements of moulding mould, connects with the mains, heat up, mould temperature rise is to 250-300 DEG C;
D. after matched moulds, the sand-shooting head of penetrating sand machine enters into the sand inlet of moulding mould, and precoated sand is penetrated to sand 3-10 second, and sand-shooting head exits the sand inlet of moulding mould, is then cured 1-5 minute, and die sinking plunger tip, gets sand mold.Its step completes in order automatically through computer programming, and circulation is carried out, and starts circulation from matched moulds, to only getting sand mold, has once circulated and has once produced, i.e. circulation is produced.Produce alnico magnet casting sand mold.
The formative technology of original Casting Al-Ni-Co Magnet is to adopt hand moulding.Adopt 70-140 order quartz sand, furane resins, amine-oxides aqueous solution of urea, after three's ammonium ratio is at room temperature mixed, be put in cold mould and pat consolidation with hand, be put on lifting platform and shake the demoulding in upset, after the demoulding, the baking kiln drying that does not have curing sand mold to enter again 180-250 degree Celsius is solidified.Not only labour intensity is large.Productivity ratio is low.And uncured with regard to molding, be easy to cause mold cavity deformation, cause casting dimension accuracy low, sand mold intensity is low again, causes forming multiple casting flaw as sand holes, pore etc.
The present invention has run into the phenomenon such as broken after the demoulding of demoulding difficulty sand mold in development process.In order to address this problem, we adopt increases model and running gate system pattern draft, improves mould fineness with abrasive polishing process, to reduce ejection resistance.Play remarkable result.
As preferably, purity quartzite is 70-140 order, fine size, and good fluidity, is easy to molding sand filling, and spray fineness after melting is good.SIO in purity quartzite
2content is greater than 99%, SIO
2the higher molding sand refractoriness of content is higher, prevents that rough casting from producing scab defect.
As preferably, while penetrating sand, adopt horizontal sandblast, adopt the upper and lower molding list of horizontal direction station to penetrate sand machine.Adopt horizontal sandblast to be more conducive to molding sand filling with respect to vertical sandblast, dead angle does not occur.Be that more complicated mould also can put in place in filling.Play in the present invention crucial effect.
As preferably, described moulding mould includes frame, frame is provided with sand inlet, in frame, be provided with the product model of alnico magnet, product model top is provided with decking, product model is communicated with running gate system, running gate system is communicated with sprue, sprue is positioned at the middle part of moulding mould, product model place is provided with heating arrangements, decking is connected with post rod mechanism, core ejection mechanism and return mechanism, and post rod mechanism, core ejection mechanism, return mechanism have numerical control device by connection, and numerical control device is penetrated sand machine by connection.Can automatically be controlled and be penetrated sand machine, push rod, return mechanism by numerical control device, can make like this to penetrate sand process is all automatically to complete, automatic cycle.
As preferably, the power of described heating rod is 1.5KW.
Therefore, the present invention adopts automation mechanized operation flow process, has promoted the product quality of alnico magnet, has improved operating efficiency.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of moulding mould of the present invention;
Accompanying drawing 2 is cross-sectional view of Fig. 1.
Parts, position and numbering in figure: frame 1, sand inlet 2, product model 3, decking 4, running gate system 5, sprue 6, heating arrangements 7, post rod mechanism 8, core ejection mechanism 9, return mechanism 10.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of alnico magnet of this example is penetrated sand molding method, the steps include:
A. select 70-140 object purity quartzite, the SIO in purity quartzite
2content is greater than 99%, powdered phenol-formaldehyde resin is adhesive, methenamine is curing agent, purity quartzite, phenolic resins, methenamine are mixed after being heated to 130 DEG C, form precoated sand, wherein purity quartzite weight is 100kg, and phenolic resins weight is 4kg, and methenamine weight is 0.8 kg;
B. handle modeling mould is installed to penetrate on sand machine and adjusts good position, and the sand inlet on mould frame is aimed at the sand jet outlet of penetrating on sand machine;
C. 1.5KW heating rod is installed in the heating arrangements of moulding mould, connect with the mains, heat up, mould temperature rise to 260 DEG C, wherein moulding mould is as Fig. 1, Fig. 2, include frame 1, frame is provided with sand inlet 2, in frame, be provided with the product model 3 of alnico magnet, product model top is provided with decking 4, product model is communicated with running gate system 5, running gate system is communicated with sprue 6, sprue is positioned at the middle part of moulding mould, product model place is provided with heating arrangements 7, decking is connected with post rod mechanism 8, core ejection mechanism 9 and return mechanism 10, post rod mechanism, core ejection mechanism, return mechanism has numerical control device by connection, numerical control device is penetrated sand machine by connection,
D. after matched moulds, the sand-shooting head that the upper and lower molding list of horizontal direction station is penetrated sand machine enters into the sand inlet of moulding mould, precoated sand is penetrated to sand, 5 seconds, penetrate sand and adopt horizontal sandblast, sand-shooting head exits the sand inlet of moulding mould, is then cured, 2 minutes, die sinking plunger tip, got sand mold.Its step completes in order automatically through computer programming, and circulation is carried out, and starts circulation from matched moulds, to only getting sand mold.Once circulated and once produced, i.e. circulation is produced, and finally produces alnico magnet casting sand mold.
Embodiment 2: a kind of alnico magnet of this example is penetrated sand molding method, the steps include:
A. select 70-140 object purity quartzite, the SIO in purity quartzite
2content is greater than 99%, powdered phenol-formaldehyde resin is adhesive, methenamine is curing agent, purity quartzite, phenolic resins, methenamine are mixed after being heated to 140 DEG C, form precoated sand, wherein purity quartzite weight is 100kg, and phenolic resins weight is 5kg, and methenamine weight is 1 kg;
B. handle modeling mould is installed to penetrate on sand machine and adjusts good position, and the sand inlet on mould frame is aimed at the sand jet outlet of penetrating on sand machine;
C. 1.5KW heating rod is installed in the heating arrangements of moulding mould, connect with the mains, heat up, mould temperature rise to 280 DEG C, wherein moulding mould is as Fig. 1, Fig. 2, include frame 1, frame is provided with sand inlet 2, in frame, be provided with the product model 3 of alnico magnet, product model top is provided with decking 4, product model is communicated with running gate system 5, running gate system is communicated with sprue 6, sprue is positioned at the middle part of moulding mould, product model place is provided with heating arrangements 7, decking is connected with post rod mechanism 8, core ejection mechanism 9 and return mechanism 10, post rod mechanism, core ejection mechanism, return mechanism has numerical control device by connection, numerical control device is penetrated sand machine by connection,
D. after matched moulds, the sand-shooting head that the upper and lower molding list of horizontal direction station is penetrated sand machine enters into the sand inlet of moulding mould, and precoated sand is penetrated to sand 6 seconds, penetrate sand and adopt horizontal sandblast, sand-shooting head exits the sand inlet of moulding mould, is then cured 3 minutes, die sinking plunger tip, gets sand mold.Its step completes in order automatically through computer programming, and circulation is carried out, and starts circulation from matched moulds, to only getting sand mold, has once circulated and has once produced, i.e. circulation is produced, and finally produces alnico magnet casting sand mold.
Embodiment 3: a kind of alnico magnet of this example is penetrated sand molding method, the steps include:
A. select 70-140 object purity quartzite, the SIO in purity quartzite
2content is greater than 99%, powdered phenol-formaldehyde resin is adhesive, methenamine is curing agent, purity quartzite, phenolic resins, methenamine are mixed after being heated to 150 DEG C, form precoated sand, wherein purity quartzite weight is 100kg, and phenolic resins weight is 6kg, and methenamine weight is 1.8 kg;
B. handle modeling mould is installed to penetrate on sand machine and adjusts good position, and the sand inlet on mould frame is aimed at the sand jet outlet of penetrating on sand machine;
C. 1.5KW heating rod is installed in the heating arrangements of moulding mould, connect with the mains, heat up, mould temperature rise to 290 DEG C, wherein moulding mould is as Fig. 1, Fig. 2, include frame 1, frame is provided with sand inlet 2, in frame, be provided with the product model 3 of alnico magnet, product model top is provided with decking 4, product model is communicated with running gate system 5, running gate system is communicated with sprue 6, sprue is positioned at the middle part of moulding mould, product model place is provided with heating arrangements 7, decking is connected with post rod mechanism 8, core ejection mechanism 9 and return mechanism 10, post rod mechanism, core ejection mechanism, return mechanism has numerical control device by connection, numerical control device is penetrated sand machine by connection,
D. after matched moulds, the sand-shooting head that the upper and lower molding list of horizontal direction station is penetrated sand machine enters into the sand inlet of moulding mould, and precoated sand is penetrated to sand 8 seconds, penetrate sand and adopt horizontal sandblast, sand-shooting head exits the sand inlet of moulding mould, is then cured 4 minutes, die sinking plunger tip, gets sand mold.Its step completes in order automatically through computer programming, and circulation is carried out, and starts circulation from matched moulds, to only getting sand mold.Once circulated and once produced, i.e. circulation is produced, and finally produces alnico magnet casting sand mold.
The foregoing is only specific embodiments of the invention, but architectural feature of the present invention is not limited to this, any those skilled in the art is in the field of the invention, and the variation of doing or modification are all encompassed among the scope of the claims of the present invention.
Claims (5)
1. alnico magnet is penetrated a sand molding method, it is characterized in that described method comprises:
A. select purity quartzite, powdered phenol-formaldehyde resin is adhesive, methenamine is curing agent, purity quartzite, phenolic resins, methenamine are mixed after being heated to 120-150 DEG C, form precoated sand, wherein phenolic resins weight accounts for the 4%-6% of purity quartzite weight, and the weight of methenamine accounts for the 20-30% into phenolic resins weight;
B. handle modeling mould is installed to penetrate on sand machine and adjusts good position, and the sand inlet on mould frame is aimed at the sand jet outlet of penetrating on sand machine;
C. heating rod is installed in the heating arrangements of moulding mould, connects with the mains, heat up, mould temperature rise is to 250-300 DEG C;
D. after matched moulds, the sand-shooting head of penetrating sand machine enters into the sand inlet of moulding mould, and precoated sand is penetrated to sand 3-10 second, sand-shooting head exits the sand inlet of moulding mould, then be cured 1-5 minute, die sinking plunger tip, gets sand mold, its step completes in order automatically through computer programming, start circulation from matched moulds, to only getting sand mold, once circulated and once produced, i.e. circulation is produced, and finally produces alnico magnet casting sand mold.
2. alnico magnet according to claim 1 is penetrated sand molding method, it is characterized in that described purity quartzite is 70-140 order, the SIO in purity quartzite
2content is greater than 99%.
3. alnico magnet according to claim 1 is penetrated sand molding method, it is characterized in that described adopting horizontal sandblast while penetrating sand, adopts the upper and lower molding list of horizontal direction station to penetrate sand machine.
4. alnico magnet according to claim 1 is penetrated sand molding method, it is characterized in that described moulding mould includes frame (1), frame is provided with sand inlet (2), in frame, be provided with the product model (3) of alnico magnet, product model top is provided with decking (4), product model is communicated with running gate system (5), running gate system is communicated with sprue (6), sprue is positioned at the middle part of moulding mould, product model place is provided with heating arrangements (7), decking is connected with post rod mechanism (8), core ejection mechanism (9) and return mechanism (10), post rod mechanism, core ejection mechanism, return mechanism has numerical control device by connection, numerical control device is penetrated sand machine by connection.
5. alnico magnet according to claim 1 is penetrated sand molding method, it is characterized in that the power of described heating rod is 1.5KW.
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| CN201410128496.0A CN104001870B (en) | 2014-04-02 | 2014-04-02 | Sand molding method penetrated by alnico magnet |
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| CN201410128496.0A CN104001870B (en) | 2014-04-02 | 2014-04-02 | Sand molding method penetrated by alnico magnet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399900A (en) * | 2014-11-25 | 2015-03-11 | 宁波工程学院 | Sand core fixing method, method for assembling sand core with mould, and preparation method for casting piece with special-shaped cavity and special-shaped hole |
| CN105506468A (en) * | 2015-12-21 | 2016-04-20 | 宁波金汇精密铸造有限公司 | Preparation method of buffer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB658544A (en) * | 1948-12-09 | 1951-10-10 | Fischer Ag Georg | Improved sand-moulding machines |
| CN1519069A (en) * | 2003-09-01 | 2004-08-11 | 董立春 | Method for manufacturing cast-iron radiator without sand inside cavity |
| CN101249547A (en) * | 2008-03-24 | 2008-08-27 | 山东时风（集团）有限责任公司 | Tooth form part foundry technique method |
| CN102107261A (en) * | 2009-12-23 | 2011-06-29 | 天津市盛兴祥机械制造有限公司 | Production technology for casting brake disk air channel with pre-coated sand core method |
| CN102699280A (en) * | 2012-06-30 | 2012-10-03 | 南车戚墅堰机车车辆工艺研究所有限公司 | Sand mould of precoated sand for casting single piston ring and manufacturing method of sand mould |
| CN203076538U (en) * | 2012-12-26 | 2013-07-24 | 重庆市卓航再生资源回收有限公司 | Core shooter |
-
2014
- 2014-04-02 CN CN201410128496.0A patent/CN104001870B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB658544A (en) * | 1948-12-09 | 1951-10-10 | Fischer Ag Georg | Improved sand-moulding machines |
| CN1519069A (en) * | 2003-09-01 | 2004-08-11 | 董立春 | Method for manufacturing cast-iron radiator without sand inside cavity |
| CN101249547A (en) * | 2008-03-24 | 2008-08-27 | 山东时风（集团）有限责任公司 | Tooth form part foundry technique method |
| CN102107261A (en) * | 2009-12-23 | 2011-06-29 | 天津市盛兴祥机械制造有限公司 | Production technology for casting brake disk air channel with pre-coated sand core method |
| CN102699280A (en) * | 2012-06-30 | 2012-10-03 | 南车戚墅堰机车车辆工艺研究所有限公司 | Sand mould of precoated sand for casting single piston ring and manufacturing method of sand mould |
| CN203076538U (en) * | 2012-12-26 | 2013-07-24 | 重庆市卓航再生资源回收有限公司 | Core shooter |
Non-Patent Citations (1)
| Title |
|---|
| 刘文川等: "热(冷)芯盒结构的优化设计", 《铸造》, vol. 54, no. 8, 22 August 2005 (2005-08-22), pages 811 - 814 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399900A (en) * | 2014-11-25 | 2015-03-11 | 宁波工程学院 | Sand core fixing method, method for assembling sand core with mould, and preparation method for casting piece with special-shaped cavity and special-shaped hole |
| CN105506468A (en) * | 2015-12-21 | 2016-04-20 | 宁波金汇精密铸造有限公司 | Preparation method of buffer |
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| CN104001870B (en) | 2016-06-29 |
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Address after: Lin Pu Zhen Meng Village Xiaoshan District of Hangzhou City, Zhejiang province 311215 Patentee after: Hangzhou Zhijiang Magnetic Industry Co., Ltd. Address before: A branch of Hangzhou city in Zhejiang province 311215 Xiaoshan Qianjiang farm 73021 troops on the west side Patentee before: Hangzhou Xiaoshan Zhijiang Magnet Co., Ltd. |
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