CN105964980B - A kind of hot investment casting equipment of thin-wall box body - Google Patents

A kind of hot investment casting equipment of thin-wall box body Download PDF

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Publication number
CN105964980B
CN105964980B CN201610543970.5A CN201610543970A CN105964980B CN 105964980 B CN105964980 B CN 105964980B CN 201610543970 A CN201610543970 A CN 201610543970A CN 105964980 B CN105964980 B CN 105964980B
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CN
China
Prior art keywords
core
mold
mould
die
pressing board
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Application number
CN201610543970.5A
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Chinese (zh)
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CN105964980A (en
Inventor
邵宏
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无锡蠡湖增压技术股份有限公司
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Publication of CN105964980A publication Critical patent/CN105964980A/en
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Publication of CN105964980B publication Critical patent/CN105964980B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00Pressure casting; Vacuum casting
    • B22D18/04Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould

Abstract

The hot investment casting equipment of a kind of thin-wall box body, including mold mechanism, mold fixed mechanism, heat preservation mechanism, heating mechanism, temperature control mechanism, exhaust gear, cooling body;The mold mechanism is provided with external mold, and core model and the core mould in mould, core in mould, core angle mould, core are provided in external mold;The mold fixed mechanism is provided with positioning screw in pressuring template and external mold, and top pressing board and lower pallet are respectively arranged in the upper and lower side of upper mold and lower die;The lower pallet;The heat preservation mechanism is provided with insulating layer between mold mechanism and pressuring template, between mold mechanism and top pressing board, lower pallet;The heating mechanism is provided with electrical heating pore in mold mechanism;The temperature control mechanism is provided with thermocouple hole;The exhaust gear is provided with gas vent, upper exhaust tube;The cooling body, is provided with cooling duct in external mold;The mold mechanism uses graphite material;Without coating during use, precision height is made, simplifies process, it is apparent good.

Description

A kind of hot investment casting equipment of thin-wall box body

Technical field

The equipment is related to casting field, the hot investment casting equipment of specifically a kind of thin-wall box body.

Background technology

With the fast development of Aerobiz, ev industry, to the need of the aluminium alloy thin-walled complexity product of lightweight The amount of asking constantly increases, but its shape is the babinet of two millimeters of wall thickness, inner cavity without gradient, be equipped on the outside of babinet thicker installation foot with Equidistant entire body cooling fin, product requirement are that pinhole rate is less than three-level, and tensile strength is more than 270MPa, surface roughness Ra It is required that less than 3.2;Such product used at present is the processed center ledger line cutting of Al alloy block since specification mostly batch is few Mode is made, and not only processing cost is excessively high, and it is also too long that the period is made;Such as use thermal processing method metal pattern die casting, pinhole rate, Tensile strength can not meet the requirement of the product again;Such as coating or metal pattern is added to add coating low pressure compression casting, table using sand mold The product requirement is not achieved in appearance quality again;The hot investment casting of low pressure pressurization is such as carried out using plaster mold or fusible pattern, not only mold takes With height, the process-cycle is also higher with cost.

Invention content

For the said goods requirement, production, cost of manufacture are equipped using a kind of hot investment casting of thin-wall box body of the application It is low.

A kind of thin-wall box body of the application hot investment casting equipment, including mold mechanism, mold fixed mechanism, heat preservation mechanism, Heating mechanism, temperature control mechanism, exhaust gear, cooling body;

The mold mechanism is provided with external mold 3, and core model 6 and core side mould 10, core model 6 and core side mould 10 are provided in external mold 3 Exterior angle be provided with core angle mould 8, be provided with mould 11 in core in the core model 6 and core side mould 10;The external mold 3, core model 6, core angle The top and bottom of mould 11 are respectively arranged with upper mold 9 and lower die 20 in mould 8, core side mould 10, core;The external mold 3, core model 6, core angle The upper and lower side of mould 11 is respectively arranged with positioning column 7 in mould 8, core side mould 10, core;The upper mold 9 in lower die 20 with being respectively arranged with With 7 corresponding location hole of positioning column;Liter liquid mouth 13 and runner 12 are provided in the lower die 20;It is demoulded for ease of core model, institute State four sides of mould 11 in core, 8 two sides of core angle mould are provided with Dou degree;The external mold 3 and core model 6, core side mould 10, core angle mould Cavity 5 is provided between 8;Liter liquid mouth 13, runner 11 in the lower die 20 are communicated with cavity 5;

The mold fixed mechanism is included in side template 1 and external mold 3 and is provided with positioning screw 17, in upper mold 9 and lower die 20 upper and lower side is respectively arranged with top pressing board 14 and lower pallet 19;It is provided in the lower pallet 19 corresponding with liter liquid mouth 13 Stalk location hole;Top plate frame 15 is provided on the top pressing board 14;The mold fixed mechanism is set to low pressure compression casting In machine;

The heat preservation mechanism is included between mold mechanism and side template 1, mold mechanism and top pressing board 14, lower pallet 19 Between be provided with insulating layer 2;

The heating mechanism is included in mould 11, upper mold in side template 1, external mold 3, core model 6, core side mould 10, core angle mould 8, core 9th, it is provided with electrical heating pore 4 in lower die 20, top pressing board 14;

The temperature control mechanism, in side template 1, external mold 3, core model 6, core side mould 10, core angle mould 8, core mould 11, upper mold 9, under Thermocouple hole 21 is provided in mould 20, top pressing board 14;

The exhaust gear, upper mold 9, the cavity 5 of top pressing board 14 position on be provided with gas vent 22, on gas vent 22 It is provided with exhaust tube 23;

The cooling body is respectively arranged with cooling duct import 24 in side template 1 and exports 25 with cooling duct, in external mold 3 In be provided with cooling duct 18.

The side template is metal material.

The insulating layer uses polycrystalline cotton paper.

The mold mechanism uses graphite material.

Set bottoming hole aperture is more than the bottoming hole aperture in graphite jig in the side template, top pressing board.

A kind of hot investment casting equipment of thin-wall box body of the application, mold is made using graphite material, need not when not only using Coating also improves the making precision of product, not only simplifies production process, and improves the apparent mass of product;Using setting The polycrystalline cotton paper for being placed in mold mechanism outer wall keeps the temperature graphite jig, effectively increases the warm temperature of mold and heating speed Degree, not only increases production efficiency, the molten aluminum being also convenient in runner pressurizes to the product just condensed, effectively increases product Density and mechanical performance;Using be set to cope plate, the exhaust gear on top pressing board is connect with air extractor, type when making to fill type Chamber generates negative pressure, effectively reduces the stomata and pin hole in product, meets the aviation-grade index of the product;Using being set in external mold Cooling duct product is completed to external mold after cool down, effectively shorten the production cycle of product, reduce cost of manufacture, make this Such product of enterprise's production has more the market advantage.

Description of the drawings

Fig. 1 is the structure diagram of the application.

Specific embodiment

The specific embodiment in the application is described further below in conjunction with the accompanying drawings.

In Fig. 1, including side template 1, insulating layer 2, external mold 3, electrical heating pore 4, cavity 5, core model 6, positioning column 7, core angle Mould 11, runner 12, liter liquid mouth 13, top pressing board 14, top plate frame 15, positioning screw 17, cooling in mould 8, upper mold 9, core side mould 10, core Road 18, lower pallet 19, lower die 20, thermocouple hole 21, gas vent 22, exhaust tube 23, cooling duct import 24, cooling duct outlet 25 Deng.

As shown in Figure 1, the application is a kind of hot investment casting equipment of thin-wall box body.

According to the technical solution of the application, a kind of hot investment casting equipment of thin-wall box body is fixed including mold mechanism, mold Mechanism, heat preservation mechanism, heating mechanism, temperature control mechanism, exhaust gear, cooling body;

The mold mechanism includes mould 11 in external mold 3, core model 6, core side mould 10, core angle mould 8, core, upper mold 9, lower die 20, determines Position column 7, location hole;The external mold 3 is set in the side template 1 in low pressure compression casting machine;The core model 6, core side mould 10, core Mould 11 is set in external mold 3 in angle mould 8, core;The upper mold 9 is respectively arranged at external mold 3, core model 6, core angle mould 8, core with lower die 20 The top and bottom of mould 11 in side mould 10, core, the positioning column 7 are respectively arranged at external mold 3, core model 6, core angle mould 8, core side mould 10th, in core mould 11 upper and lower side;The location hole be respectively arranged at in 7 corresponding upper mold 9 of positioning column and lower die 20;It is described Cavity 5 is set between external mold 3 and core model 6, core side mould 10, core angle mould 8;Described liter of liquid mouth 13, runner 11 are set to lower die 20 In;Described liter of liquid mouth 13, runner 11 are communicated with cavity 5;It is demoulded for ease of core model, four sides, the core angle of mould 11 in the core 8 two sides of mould are provided with Dou degree;

The mold fixed mechanism, including side template 1, positioning screw 17, top pressing board 14 and lower pallet 19, the positioning spiral shell Nail 17 is set to side template 1 and in external mold 3, top pressing board 14 is set to lower pallet 19 in side template 1;It is described with rise 13 phase of liquid mouth Corresponding stalk location hole is set in lower pallet 19;The top plate frame 15 is set on top pressing board 14;The mold is fixed Mechanism is set in low pressure compression casting machine;

The heat preservation mechanism, including insulating layer 2 be set to mold mechanism and side template 1, mold mechanism and top pressing board 14, under Between supporting plate 19;

The heating mechanism, the electrical heating pore 4 including side template 1, external mold 3, lower die 20 set transverse direction;Core model 6, core side Mould 11, cope plate 9, the electrical heating pore of top pressing board 14 are longitudinally disposed in mould 10, core angle mould 8, core;

The temperature control mechanism is set to side template 1, external mold 3, core model 6, core side mould 10, core angle mould including thermocouple hole 21 8th, in core in mould 11, upper mold 9, lower die 20, top pressing board 14;

The exhaust gear, including gas vent 22 be set to upper mold 9, top pressing board 14 cavity 5 position above, gas vent 22 connect with exhaust tube 23;

The cooling body is set to including cooling duct 18 in external mold 3, the cooling duct import 24 in side template 1 and cooling Road outlet 25 is used logical with cooling duct 18.

The side template is metal material.

The insulating layer uses polycrystalline cotton paper.

The mold mechanism uses graphite material.

Set bottoming hole aperture is more than the bottoming hole aperture in graphite jig in the side template, top pressing board.

In use, cavity fill after mold mechanism is heated to temperature type, pumping, pressurization, cool down, surrounding of decorporating it is outer Mould rises top pressing board, takes out mould in core, take off mould in core model core side-mode core angle mould core, take off lower die, cut away cast gate;It uses Shi Wuxu coating improves the making precision of product, not only simplifies production process, and improves the apparent mass of product;It adopts Graphite jig is kept the temperature with the polycrystalline cotton paper for being set to mold mechanism outer wall, effectively increases the warm temperature of mold with adding Warm speed, not only increases production efficiency, and the molten aluminum being also convenient in runner pressurizes to the product just condensed, effectively increases The density and mechanical performance of product;Using be set to cope plate, the exhaust gear on top pressing board is connect with air extractor, make to fill type When cavity generate negative pressure, effectively reduce the stomata and pin hole in product, meet the aviation-grade index of the product;It is outer using being set to Cooling duct in mould cools down after completing product to external mold, effectively shortens the production cycle of product, reduces cost of manufacture, Such product that this enterprise produces is made to have more the market advantage.

Claims (4)

1. a kind of hot investment casting equipment of thin-wall box body, it is characterized in that:Including mold mechanism, mold fixed mechanism, heat preservation mechanism, Heating mechanism, temperature control mechanism, exhaust gear, cooling body;
The mold mechanism is provided with external mold (3), and core model (6) and core side mould (10), core model (6) and core are provided in external mold (3) The exterior angle of side mould (10) is provided with core angle mould (8), and mould in core (11) is provided in the core model (6) and core side mould (10);It is described The top and bottom of mould (11) are respectively arranged with upper mold (9) in external mold (3), core model (6), core angle mould (8), core side mould (10), core With lower die (20);The upper and lower side of mould (11) is set respectively in the external mold (3), core model (6), core angle mould (8), core side mould (10), core It is equipped with positioning column (7);It is respectively arranged with and positioning column (7) corresponding location hole in the upper mold (9) and lower die (20);It is described Liter liquid mouth (13) and runner (12) are provided in lower die (20);It is demoulded for ease of core model, four sides of mould (11) in the core, Core angle mould (8) two sides are provided with Dou degree;The external mold (3) and core model (6), core side mould (10), core angle mould are provided between (8) Cavity (5);Liter liquid mouth (13), runner (11) in the lower die (20) are communicated with cavity (5);
The mold fixed mechanism is included in side template (1) and external mold (3) and is provided with positioning screw (17), upper mold (9) with The upper and lower side of lower die (20) is respectively arranged with top pressing board (14) and lower pallet (19);It is provided in the lower pallet (19) with rising liquid Mouth (13) corresponding stalk location hole;Top plate frame (15) is provided on the top pressing board (14);
The mold fixed mechanism is set in low pressure compression casting machine;
The heat preservation mechanism is included between mold mechanism and side template (1), mold mechanism and top pressing board (14), lower pallet (19) insulating layer (2) is provided between;
The heating mechanism is included in mould in side template (1), external mold (3), core model (6), core side mould (10), core angle mould (8), core (11), it is provided with electrical heating pore (4) in upper mold (9), lower die (20), top pressing board (14);
The temperature control mechanism, in side template (1), external mold (3), core model (6), core side mould (10), core angle mould (8), core mould (11), Thermocouple hole (21) is provided in upper mold (9), lower die (20), top pressing board (14);
The exhaust gear, upper mold (9), the cavity (5) of top pressing board (14) position on be provided with gas vent (22), gas vent (22) exhaust tube (23) is provided on;
The cooling body is respectively arranged with cooling duct import (24) in side template (1) and exports (25) with cooling duct, in external mold (3) cooling duct (18) is provided in.
2. a kind of hot investment casting equipment of thin-wall box body described in accordance with the claim 1, it is characterized in that:The insulating layer is using more Brilliant cotton paper.
3. a kind of hot investment casting equipment of thin-wall box body described in accordance with the claim 1, it is characterized in that:The mold mechanism uses Graphite material.
4. a kind of hot investment casting equipment of thin-wall box body described in accordance with the claim 1, it is characterized in that:The side template, top pressure Set bottoming hole aperture is more than the bottoming hole aperture in graphite jig in plate.
CN201610543970.5A 2016-07-04 2016-07-04 A kind of hot investment casting equipment of thin-wall box body CN105964980B (en)

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CN201610543970.5A CN105964980B (en) 2016-07-04 2016-07-04 A kind of hot investment casting equipment of thin-wall box body

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CN105964980B true CN105964980B (en) 2018-06-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108160922B (en) * 2017-12-23 2019-09-06 安徽鑫宏机械有限公司 A kind of composite shell preparation process reducing investment-casting blind hole

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506604A (en) * 2012-06-25 2014-01-15 无锡蠡湖叶轮制造有限公司 Method for casting long-runner thin-wall type box body
CN104148613A (en) * 2014-08-21 2014-11-19 无锡蠡湖叶轮制造有限公司 One-die-four-cavity die for compressor casing low-pressing casting
CN204621054U (en) * 2015-04-27 2015-09-09 山东泰开精密铸造有限公司 New energy car battery casing punching block low pressure casting die
CN204700275U (en) * 2015-05-21 2015-10-14 天津工程机械研究院 Building hoist box body of speed reducer low pressure casting die
CN105081280A (en) * 2015-08-25 2015-11-25 来安县科来兴实业有限责任公司 Metal mold low-pressure casting mold for lower box body of high-speed train cast aluminum gearbox
CN205798395U (en) * 2016-07-04 2016-12-14 无锡蠡湖增压技术股份有限公司 A kind of hot investment casting equipment of thin-wall box body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5704641B2 (en) * 2011-02-25 2015-04-22 学校法人早稲田大学 Low temperature mold and low pressure casting method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506604A (en) * 2012-06-25 2014-01-15 无锡蠡湖叶轮制造有限公司 Method for casting long-runner thin-wall type box body
CN104148613A (en) * 2014-08-21 2014-11-19 无锡蠡湖叶轮制造有限公司 One-die-four-cavity die for compressor casing low-pressing casting
CN204621054U (en) * 2015-04-27 2015-09-09 山东泰开精密铸造有限公司 New energy car battery casing punching block low pressure casting die
CN204700275U (en) * 2015-05-21 2015-10-14 天津工程机械研究院 Building hoist box body of speed reducer low pressure casting die
CN105081280A (en) * 2015-08-25 2015-11-25 来安县科来兴实业有限责任公司 Metal mold low-pressure casting mold for lower box body of high-speed train cast aluminum gearbox
CN205798395U (en) * 2016-07-04 2016-12-14 无锡蠡湖增压技术股份有限公司 A kind of hot investment casting equipment of thin-wall box body

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