CN102847916B - A kind of suction pouring foundry goods removing from mould method - Google Patents

A kind of suction pouring foundry goods removing from mould method Download PDF

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Publication number
CN102847916B
CN102847916B CN201210342425.1A CN201210342425A CN102847916B CN 102847916 B CN102847916 B CN 102847916B CN 201210342425 A CN201210342425 A CN 201210342425A CN 102847916 B CN102847916 B CN 102847916B
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CN
China
Prior art keywords
foundry goods
crystallizer
compressed air
mould
casting
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Application number
CN201210342425.1A
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Chinese (zh)
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CN102847916A (en
Inventor
张文军
周亚娜
张文健
Original Assignee
西安航空动力股份有限公司
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Priority to CN201210342425.1A priority Critical patent/CN102847916B/en
Publication of CN102847916A publication Critical patent/CN102847916A/en
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Publication of CN102847916B publication Critical patent/CN102847916B/en

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Abstract

The invention belongs to casting technology field, relate to a kind of foundry goods removing from mould method in copper alloy and the casting of other low-melting alloy suction pouring.First on the vacuum line of suction pouring machine crystallizer, install a three-way connection, one end of three-way connection connects with crystallizer die cavity, and one, two ends connect with vacuum tank in addition, and another is connected with compressed air gas source by compressed air gauge tap; Then, start to inhale casting, after suction casting completes, close vacuum tank, open compressed air gauge tap, carry out cooling and pressurizeing to the foundry goods in crystallizer die cavity, pressure is 0.3-0.5MPa, until foundry goods thoroughly departs from crystallizer.The present invention is by the improvement to vacuum system, and increase compressed air supplement heat rejecter and the removing from mould of 0.3-0.5MPa, the foundry goods removing from mould time, by original 6-8 minutes, reduces to 1-2 minutes after improvement.The operating personnel of this station reduce to 1 people by 2 original people.The reclamation work amount of crystallizer and scrappage all reduce 50%.

Description

A kind of suction pouring foundry goods removing from mould method
Technical field
The invention belongs to casting technology field, relate to a kind of foundry goods removing from mould method in copper alloy and the casting of other low-melting alloy suction pouring.
Background technology
Suction pouring is that one sets up vacuum by vacuum system in casting mold die cavity, by pressure differential, molten metal from bottom to top is pressed into die cavity, carries out the casting method of coagulation forming under the cooling of recirculated water.Process for suction casting is the effective way solving bar pore, shrinkage cavity and porosity and dreg defect.
Suction pouring equipment is suction pouring machine, is made up of a few parts such as main frame, vacuum extractor, cooling water system, crystallizer, switch boards.The suction pouring machine that we use is portable.
The key component of suction pouring machine is crystallizer, and crystallizer can be described as again suction casting mould, and foundry goods is shaping in crystallizer die cavity.Crystallizer is by working cover, overcoat, water pipe and vacuumize trunnion etc. and form.The total figure of crystallizer is shown in Fig. 1.
The periphery of inner wall water cooling of crystallizer (i.e. water-cooled metal mould), crystallizer end opening immerses in molten metal, it is suitable for reading connects vacuum system, molten metal rises up into crystallizer internal cavity and reach a certain height under atmospheric action, crystallizer inner metal liquid is solidified by export-oriented center, after to be solidified, crystallizer is risen, shift out liquid level, take out foundry goods.
Under normal circumstances, foundry goods removing from mould, crystallizer flange is manually knocked in main dependence, and by knocking the vibrations of generation, under the booster action of foundry goods self gravitation, foundry goods is deviate from from casting mold, and the major defect of the method is, foundry goods removing from mould process difficult, production efficiency is low.Artificial repeatedly knock crystallizer flange, the sealing of damage crystallizer water-cooling circulating system, causes crystallizer fault rate to remain high.
Summary of the invention
The object of the invention is the work workload alleviating operator, improve casting process production efficiency, reduce a kind of suction pouring foundry goods removing from mould method that crystallizer (i.e. water-cooled metal mould) is consumed.
The technology of the present invention solution is, first on the vacuum line of suction pouring machine crystallizer, a three-way connection is installed, one end of three-way connection connects with crystallizer die cavity, and one, two ends connect with vacuum tank in addition, and another is connected with compressed air gas source by compressed air gauge tap; Then, start to inhale casting, after suction casting completes, close vacuum tank, open compressed air gauge tap, carry out cooling and pressurizeing to the foundry goods in crystallizer die cavity, pressure is 0.3-0.5MPa, until foundry goods thoroughly departs from crystallizer.
The advantage that the present invention has and beneficial effect, the present invention is by the improvement to vacuum system, and increase compressed air supplement heat rejecter and the removing from mould of 0.3-0.5MPa, the foundry goods removing from mould time, by original 68 minutes, reduces to 12 minutes after improvement.The operating personnel of this station reduce to 1 people by 2 original people.The reclamation work amount of crystallizer and scrappage all reduce 50%.
Accompanying drawing explanation
Fig. 1 is the crystallizer schematic diagram of suction pouring machine;
Fig. 2 is technical solution of the present invention schematic diagram;
Fig. 3 is foundry goods removing from mould process first stage schematic diagram of the present invention;
Fig. 4 is foundry goods removing from mould process second stage schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
Vacuum line on the crystallizer 2 of original suction pouring machine installs a three-way connection 1, one end of three-way connection 1 connects with crystallizer die cavity 3, one, two ends are connected with vacuum tank 5 by vacuum switch 7 in addition, and another is connected with compressed air gas source 4 by compressed air gauge tap 6; The operating pressure of compressed air gas source 4 is 0.3-0.5MPa.As shown in Figure 2.
The operation principle of invention:
Operation principle signal is as shown in Fig. 3, Fig. 4.In casting process, after foundry goods suction casting completes, close vacuum switch, foundry goods 8 is first under the cooling of recirculated water 9, solidify gradually, then shrink slowly, shrink after foundry goods progressively produce small being separated with water mold, now recirculated water to the cooling effect of foundry goods because crystallizer sharply reduces with producing small separation between foundry goods.In order to make the removing from mould process of foundry goods time saving and energy saving, open the compressed air of 0.3-0.5MPa, compressed air 10 enters along crystallizer with producing small gap between foundry goods, under the quick cooling of compressed air 10, accelerate foundry goods and produce Solid State Contraction further, foundry goods is while bearing self gravitation, receive compressed air to the downward applied pressure of foundry goods, the size of this pressure can be controlled by the compressed-air actuated switch of adjustment, ensure smooth removing from mould, prevent casting fin, knob from splashing simultaneously and hurt sb.'s feelings.

Claims (1)

1. a suction pouring foundry goods removing from mould method, it is characterized in that, first on the vacuum line of suction pouring machine crystallizer, a three-way connection is installed, one end of three-way connection connects with crystallizer die cavity, one, two ends connect with vacuum tank in addition, and another is connected with compressed air gas source by compressed air gauge tap; Then, start to inhale casting, after suction casting completes, close vacuum tank, open compressed air gauge tap, carry out cooling and pressurizeing to the foundry goods in crystallizer die cavity, foundry goods is first under the cooling of recirculated water, solidify gradually, then shrink slowly, after shrinking, foundry goods progressively produces small being separated with water mold, then, open the compressed air that pressure is 0.3-0.5MPa, compressed air enters, until foundry goods thoroughly departs from crystallizer along crystallizer with producing small gap between foundry goods.
CN201210342425.1A 2012-09-14 2012-09-14 A kind of suction pouring foundry goods removing from mould method CN102847916B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210342425.1A CN102847916B (en) 2012-09-14 2012-09-14 A kind of suction pouring foundry goods removing from mould method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210342425.1A CN102847916B (en) 2012-09-14 2012-09-14 A kind of suction pouring foundry goods removing from mould method

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CN102847916A CN102847916A (en) 2013-01-02
CN102847916B true CN102847916B (en) 2015-08-05

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CN201210342425.1A CN102847916B (en) 2012-09-14 2012-09-14 A kind of suction pouring foundry goods removing from mould method

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493344B (en) * 2016-12-27 2019-03-01 惠州市朝鲲科技有限公司 A kind of pressure booster blower impeller molding machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06182520A (en) * 1992-10-23 1994-07-05 Toyota Motor Corp Suction casting method
JPH1015657A (en) * 1996-07-05 1998-01-20 Hitachi Metals Ltd Method and device for detecting molten metal surface in vacuum suction casting
JP4352397B2 (en) * 2004-04-01 2009-10-28 新東工業株式会社 Pouring method for vacuum mold making
CN101899599B (en) * 2010-07-23 2012-05-09 哈尔滨工程大学 Preparation method of magnesium and porous beta-calcium phosphate composite material and vacuum suction casting instrument
CN202359462U (en) * 2011-12-08 2012-08-01 上海伊索热能技术有限公司 Improved demoulding device suitable for wet vacuum adsorption-filtration moulding

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Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao

Patentee after: AVIC AVIATION ENGINE CORPORATION PLC

Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao

Patentee before: Xian Aviation Power Co., Ltd.

Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao

Patentee after: AECC AVIATION POWER CO., LTD.

Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao

Patentee before: AVIC AVIATION ENGINE CORPORATION PLC

CP01 Change in the name or title of a patent holder