CN102773461A - Vacuum pressure injection furnace - Google Patents

Vacuum pressure injection furnace Download PDF

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Publication number
CN102773461A
CN102773461A CN2012102599244A CN201210259924A CN102773461A CN 102773461 A CN102773461 A CN 102773461A CN 2012102599244 A CN2012102599244 A CN 2012102599244A CN 201210259924 A CN201210259924 A CN 201210259924A CN 102773461 A CN102773461 A CN 102773461A
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CN
China
Prior art keywords
formwork
vacuum
pressure
furnace
stalk
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Pending
Application number
CN2012102599244A
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Chinese (zh)
Inventor
邵宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Lihu Wheel Manufacture Co Ltd
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Wuxi Lihu Wheel Manufacture Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Lihu Wheel Manufacture Co Ltd filed Critical Wuxi Lihu Wheel Manufacture Co Ltd
Priority to CN2012102599244A priority Critical patent/CN102773461A/en
Publication of CN102773461A publication Critical patent/CN102773461A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a vacuum pressure injection furnace which adopts the method of forming and solidification through vacuum suction and injection and pressurization to change a low pressure furnace into a pressure injection furnace. A vacuum suction and injection device is arranged on the pressure injection furnace, metallic solution in a mould case is pressurized for forming and feeding solidification by pressure which is greater than or equal to six kilograms per square centimeters while the vacuum injection for forming, so that the casted products can meet high requirement of overall accuracy, and have no air pore, no slag inclusion, no oxidizing material and no shrinkage porosity, have more advantageous mechanical property and are approximate to the index of calcined products. The vacuum pressure injection furnace mainly consists of the pressure injection furnace, a mould case protection device and a vacuum suction and injection protection device. The pressure injection furnace consists of a pressure injection furnace shell, a heating insulation device, a furnace pipe, a liquid lifting pipe, a cover plate and an air supply control system; the mould case protection device consists of a sheild spring, a mould case protective jacket, an aerating plate and a compressing device; and the vacuum suction and injection device consists of an aerating plate, a vacuum cover, a vacuum pump, a vacuum air storage tank and the like.

Description

Vacuum pressure is annotated stove
Technical field
The present invention relates to Casting Equipment, especially a kind of vacuum pressed Casting Equipment.
Background technology
Produce thin-wall complicated in the vacuum pressing and casting field at present and mainly contain three kinds of casting methods.First kind is suction pouring, and it can cast out the foundry goods of complex structure, meticulous, thin-walled, but that foundry goods is prone to is loose; Second kind is the vacuum pressed casting, can cast out complex structure, meticulous, the demanding product of the uneven overall precision of heavy wall, but the foundry goods of being produced is prone to that slag inclusion is arranged, and equipment requirements is complicated, and casting cost is high; The third is a vacuum suction compression casting again, and method is on the low pressure furnace crucible cover, to add vacuum (-tight) housing, with vacuum suction moulding again the low pressure feeding cast out no slag inclusion, oxide-free, imperforate complicated part, but cast product and still have the shrinkage porosite phenomenon.
Summary of the invention
The present invention adds the method that extrusion forming is solidified when adopting the vacuum suction; Process pressure to low pressure furnace and press the notes stove; Crucible pressurized by low pressure furnace is transformed into the furnace shell pressurized, and at formwork added metal protective sleeve, puts installation vacuum suction pressurization protective device in metal coating.In vacuum impregnating shape, adopt the extrusion forming feeding to solidify to the metallic solution in the formwork with pressure greater than six kilograms every square centimeter; Not only the overall precision requirement is high to make institute cast out product; And pore-free, no slag inclusion, oxide-free, no shrinkage porosite phenomenon; Mechanical property is more superior, the approximate part product index of forging.The present invention mainly contains to press and annotates stove, formwork protective device, vacuum suction pressurization protective device composition.Press the notes stove to have the notes of pressure furnace shell, heating and heat-insulating device, flue, stalk, cover plate and air feed control system to constitute; The formwork protective device has: guard shield stage clip, formwork sheath, air permeable plate, hold down gag are formed; Vacuum suction device has: compositions such as air permeable plate, vacuum gland, vavuum pump, vacuum air storage tank.
Figure of description
Like Fig. 1 is the composition sketch map that vacuum pressure is annotated stove
Description of drawings (1) is to press to annotate furnace shell, and (2) are heating and heat-insulating devices, and (3) are crucibles, and (4) are stalks, and (5) are bells; (6) be sealed screw, (7) are the guard shield stage clips, and (8) are the formwork guard shields, and (9) are formworks, and (10) are products; (11) be air permeable plate, (12) are the vacuum glands, and (13) are hold-down cylinders, and (14) are to compress support, and (15) are vacuum tanks; (16) be the vacuum degassing pipe, (17) are vavuum pumps, and (18) are vacuum-pumping tubes, and (19) are compressed air hoses.
The specific embodiment
The pressure that vacuum pressure of the present invention is annotated stove is annotated furnace shells (1) and has been formed pressure vessel with bell (5), and every square centimeter of operating pressure is more than or equal to six kilograms; Press and annotate furnace shell (1) and bell (5) sealing; Press to annotate in the furnace shell (1) crucible (3) has been installed; Heating and heat-insulating device (2) has been settled in crucible (3) periphery; Stalk (4) has been installed by bell (5) central authorities; Stalk (4) lower end is placed in crucible (3) molten metal; Settled formwork stage clip (7), formwork (9) to be placed on the stalk (4) outside the stalk (4) of bell (5) central authorities is suitable for reading, formwork stage clip (7) plays the back-pressure active force to formwork guard shield (8) under the situation that compresses formwork (9), makes formwork guard shield (8) protection formwork (9); Air permeable plate (11) is pressed on formwork (9), the formwork guard shield (8); Vacuum gland (12) is being pressed under the control of hold-down cylinder (13) on the air permeable plate (11); Vacuum gland (12) compresses air permeable plate (11), compresses formwork (9), behind the pressure die clamshell (8); Through vacuum-pumping tube (18) in vacuum system (15), (17) effect down to the formwork chamber vacuumize, the suction molten metal, vacuum gland (12) plays the protection sealing function when molten metal air (19) effect by compression presses down the notes goods.Pressing notes work initial vacuum gas removing pipe (16) will carry out vacuum degassing to molten metal handles; Improve the quality of aluminium liquid; Compressed air hose (19) is pressed into crucible (3) and adopts the extrusion forming feeding to solidify to the metallic solution in the formwork (9) with six kilograms every square centimeter the shape dwell pressure that fills in (18) vacuum-pumping tube vacuum impregnating shape, makes and presses that the product that outpours obtains not having shrinkage porosite, pore-free, free from admixture, mechanicalness be more superior.

Claims (8)

1. the vacuum pressure pressure of annotating stove is annotated furnace shells (1) and has been formed pressure vessel with bell (5), and every square centimeter of operating pressure is more than or equal to six kilograms; Press and annotate furnace shell (1) and bell (5) sealing; Press to annotate in the furnace shell (1) crucible (3) has been installed; Heating and heat-insulating device (2) has been settled in crucible (3) periphery; Stalk (4) has been installed by bell (5) central authorities; Stalk (4) is placed in crucible (3) molten metal; Settled formwork stage clip (7), formwork (9) to be placed on the stalk (4) outside the stalk (4) of bell (5) central authorities is suitable for reading, formwork stage clip (7) plays the back-pressure active force to formwork guard shield (8) under the situation that compresses formwork (9), makes formwork guard shield (8) protection formwork (9); Air permeable plate (11) is pressed on formwork (9), the formwork guard shield (8); Vacuum gland (12) is being pressed under the control of hold-down cylinder (13) on the air permeable plate (11); Vacuum gland (12) play and compress air permeable plate (11), compress formwork (9), pressure die clamshell (8) after vacuum-pumping tube (18) vacuum system (15), (17) effect down to formwork vacuumize, the effect of suction molten metal, simultaneously to the protection sealing function of molten metal when the compressed air effect presses down the notes goods.Pressing notes work initial vacuum gas removing pipe (16) will carry out vacuum degassing to molten metal handles; In vacuum impregnating shape, adopt extrusion forming, feeding to solidify to metallic solution in the formwork (9), make and press that the product that outpours obtains not having shrinkage porosite, pore-free, free from admixture, mechanicalness be more superior with every square centimeter of fill shape, dwell pressure more than or equal to six kilograms.
2. it is characterized in that according to claim 1: press notes furnace shells (1) and bell (5) to form pressure vessel.
3. it is characterized in that according to claim 1: press and annotate furnace shell (1) and bell (5) sealing; Press to annotate in the furnace shell (1) crucible (3) has been installed; Heating and heat-insulating device (2) has been settled in crucible (3) periphery; Stalk (4) has been installed by bell (5) central authorities; Stalk (4) is placed in crucible (3) molten metal, presses and annotates pressure by pressing notes furnace shells (1) to bear.
4. it is characterized in that according to claim 1: the stalk (4) of bell (5) the central authorities outer formwork stage clip (7) of having settled suitable for reading; Formwork (9) is placed on the stalk (4); Formwork stage clip (7) plays the back-pressure active force to formwork guard shield (8) under the situation that compresses formwork (9), make formwork guard shield (8) protection formwork (9).
5. it is characterized in that according to claim 1: air permeable plate (11) is pressed on formwork (9), the formwork guard shield (8); Vacuum gland (12) is being pressed under the control of hold-down cylinder (13) on the air permeable plate (11).
6. it is characterized in that according to claim 1: vacuum gland (12) is being pressed under the control of hold-down cylinder (13) on the air permeable plate (11), vacuum gland (12) play and compress air permeable plate (11), compress formwork (9), pressure die clamshell (8) after vacuum-pumping tube (18) under vacuum system (15), (17) effect to formwork (9) vacuumize, the effect of suction molten metal.
7. it is characterized in that according to claim 1: hold-down cylinder (13) pressing vacuum gland (12) to play and compressing air permeable plate (11), compressing formwork (9), pressure die clamshell (8) after vacuum-pumping tube (18) vacuum system (15), (17) effect down to mold cavity vacuumize, the effect of suction molten metal, simultaneously to the protection sealing function of molten metal when the compressed air effect presses down the notes goods.
8. it is characterized in that according to claim 1: vacuum gland (12) is pressing air permeable plate (11) to be pressed on the formwork (9); Vacuum gland (12) in vacuum impregnating shape, annotate press stove with every square centimeter more than or equal to six kilograms fill shape, dwell pressure adopts the extrusion forming feeding to solidify to the metallic solution in the formwork (9), make and press that the product that outpours obtains not having shrinkage porosite, pore-free, free from admixture, mechanicalness be more superior.
CN2012102599244A 2012-07-26 2012-07-26 Vacuum pressure injection furnace Pending CN102773461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012102599244A CN102773461A (en) 2012-07-26 2012-07-26 Vacuum pressure injection furnace

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Application Number Priority Date Filing Date Title
CN2012102599244A CN102773461A (en) 2012-07-26 2012-07-26 Vacuum pressure injection furnace

Publications (1)

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CN102773461A true CN102773461A (en) 2012-11-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461494A (en) * 2015-11-12 2016-04-06 中国工程物理研究院化工材料研究所 Device for parallel casting moulding of multiple explosives
CN108555268A (en) * 2018-06-04 2018-09-21 张勇 A kind of THROUGH METHOD prepares the upper hydraulic fluid pressure device and its application method of foamed aluminium
CN110375547A (en) * 2019-07-22 2019-10-25 陈杰 A kind of melting furnace melting furnace section
CN111299545A (en) * 2020-04-10 2020-06-19 台州巨东精密铸造有限公司 Negative-pressure resin sand casting mold and casting process thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2204209Y (en) * 1994-12-03 1995-08-02 河北工学院 Vacuum-pressured casting device
CN1803342A (en) * 2005-12-16 2006-07-19 华中科技大学 Metal glass melt cast moulding method and its device
CN101224493A (en) * 2008-02-18 2008-07-23 无锡刚正精密吸铸有限公司 Vacuum pressure absorbing and casting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2204209Y (en) * 1994-12-03 1995-08-02 河北工学院 Vacuum-pressured casting device
CN1803342A (en) * 2005-12-16 2006-07-19 华中科技大学 Metal glass melt cast moulding method and its device
CN101224493A (en) * 2008-02-18 2008-07-23 无锡刚正精密吸铸有限公司 Vacuum pressure absorbing and casting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461494A (en) * 2015-11-12 2016-04-06 中国工程物理研究院化工材料研究所 Device for parallel casting moulding of multiple explosives
CN105461494B (en) * 2015-11-12 2017-06-23 中国工程物理研究院化工材料研究所 For the device of the multiple parallel moulding by casting of explosive
CN108555268A (en) * 2018-06-04 2018-09-21 张勇 A kind of THROUGH METHOD prepares the upper hydraulic fluid pressure device and its application method of foamed aluminium
CN110375547A (en) * 2019-07-22 2019-10-25 陈杰 A kind of melting furnace melting furnace section
CN110375547B (en) * 2019-07-22 2020-12-08 盐城智谷电热科技有限公司 Melting furnace section of copper melting furnace
CN111299545A (en) * 2020-04-10 2020-06-19 台州巨东精密铸造有限公司 Negative-pressure resin sand casting mold and casting process thereof

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Application publication date: 20121114