CN109622920A - The pouring technology of low-pressure casting gas fuel valve remote controllers gear housing - Google Patents
The pouring technology of low-pressure casting gas fuel valve remote controllers gear housing Download PDFInfo
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- CN109622920A CN109622920A CN201811456497.2A CN201811456497A CN109622920A CN 109622920 A CN109622920 A CN 109622920A CN 201811456497 A CN201811456497 A CN 201811456497A CN 109622920 A CN109622920 A CN 109622920A
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- casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a kind of pouring technologies of low-pressure casting gas fuel valve remote controllers gear housing, preparation, and mold preheating, spray paint, molding, casting: when just starting production, temperature of aluminum liquid is 760 DEG C, and temperature control is at 730 DEG C after mould temperature is uniform；Technological parameter is input on device parameter control flow；The closure oil cylinder of left and right sliding block, locking sliding block are opened when casting；Start casting valve, air injection machine enters liter liquid-and fills type-pressurization-pressure maintaining-release-cooling-die sinking program, then takes out casting with pickup device；Mold is cooled down since the second mould, cooling time >=60s；When just starting production, the dwell time≤30s；Side core is first opened when die sinking, is then turned on upper mold and is taken up casting and pay attention to preventing ejector beam from damaging casting；In normal productive process, discovery mold cavity surface coating falls off and should fill spray in time；Casting self-test.Step of the present invention is simple, and production cost is low, in addition, cooling rate is fast in casting process, improves production efficiency.
Description
Technical field
The invention belongs to a kind of pouring technologies of low-pressure casting gas fuel valve remote controllers gear housing.
Background technique
Currently, pouring temperature is up to 800 DEG C, and the duration of pouring is 60 seconds in existing gear housing pouring technology；Tooth
The characteristics of wheel cabinet generallys use Low Pressure Casting Technology and cast, Low Pressure Casting Technology determines that the mo(u)ld top half temperature of mold is necessary
Lower than mo(u)ld bottom half temperature, so the cooling to mo(u)ld top half is more demanding, generally to cool down one minute or more, affect the efficiency of casting.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings, and providing one kind reduces production cost, improves production effect
The pouring technology of the low-pressure casting gas fuel valve remote controllers gear housing of benefit.
The purpose of the present invention is achieved through the following technical solutions:
A kind of pouring technology of low-pressure casting gas fuel valve remote controllers gear housing, the specific steps are as follows:
A, preparation:
Should be baker 24 hours or more at 400-500 DEG C before black furnace use, to remove the moisture in burner hearth, mold is cleared up in disassembly
Material returned bar, cleaning type chamber, cleaning die joint simultaneously match mould, turn to detect aluminium temperature during water, the temperature of melting furnace discharging mouth is 785-
800 DEG C, the temperature being transferred in machine furnace is 730-760 DEG C, checks whether the spectrum analysis of molten aluminum is qualified, and whether temperature meets technique
It is required that；
B, mold preheating, spray paint:
When mold being preheating to 150-250 DEG C with electrothermal tube, coating is uniformly sprayed in mold cavity surface, thick 3 to the 5 layers of painting of spray at cast gate
Material, makes cast gate paint thickness 1.5-2mm, is then preheating to 220-320 DEG C of process stipulation again, uses natural gas spraying gun at cast gate
It is preheating to 400 DEG C or more；
C, it molds:
It is first closed the sliding block of surrounding, recloses upper mold, to three times, whether observation mould open/close is smooth for sky molding two；
D, it is poured:
A, when just starting production, temperature of aluminum liquid is 760 DEG C, mould temperature uniformly after temperature control at 730 DEG C, the dwell time≤30s, with
Anti- gate freeze；
B, the closure oil cylinder of left and right sliding block is opened when being poured, and with locking sliding block, prevents die joint from running aluminium, left slider and right sliding block
Temperature is 220-280 DEG C；
C, start casting valve, air injection machine enters liter liquid-and fills type-pressurization-pressure maintaining-release-cooling-die sinking program, then
Casting is taken out with pickup device, pressure when rising liquid is 2000mpa, keeps 14-15s, and the pressure for filling pattern is 3000mpa, is kept
16-20s, pressure when pressurization are 4500mpa, dwell time 220-240s, cooling time 60s；
D, each road mold cooling system is opened since the second mould and is shown in a fully open operation, mold is cooled down, when cooling
Between >=60s；
E, side core is first opened when being opened, upper mold is then turned on and takes up casting and pay attention to preventing ejector beam from damaging casting；
F, in normal productive process, discovery mold cavity surface coating falls off and should fill spray in time, fills spray a cast gate every 5-8 mould
Coating makes cast gate paint thickness keep 1.5-2mm；
E, casting self-test:
A, every mould should check that cast(ing) surface has zero defect, such as stomata, shrinkage cavity, cold shut, it is found that defective casting should be isolated, and and
When adjusting process parameter；
B, non-processing outer surface roughness≤Ra3.2, mandril trace protrude < 1mm, and be recessed < 0.5mm；
C, it is sampled as starting the 3-4 mould of casting for the first time, when being sampled as always being poured the 1/2 of number for the second time, be sampled as the third time
When being always poured the 2/3 of number, continue to be poured after each inspection flaw detection is qualified, at all casting isolation before finding unqualified part
Reason.
A further improvement of the present invention is that: in step D, all need to be put into filter screen before every mould casting.
Compared with the prior art, the present invention has the following advantages:
Step of the present invention is simple, and production cost is low, in addition, cooling rate is fast in casting process, improves production efficiency.
Specific embodiment:
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, rather than all
Embodiment.The elements and features described in one embodiment of the invention can be with one or more other embodiment party
Elements and features shown in formula combine.It should be noted that being omitted for purposes of clarity, in explanation unrelated to the invention
, the expression and description of component known to persons of ordinary skill in the art and processing.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained under the premise of not making the creative labor, belongs to guarantor of the present invention
The range of shield.
A kind of pouring technology of low-pressure casting gas fuel valve remote controllers gear housing, the specific steps are as follows:
A, preparation:
Should be baker 24 hours or more at 400-500 DEG C before black furnace use, to remove the moisture in burner hearth, mold is cleared up in disassembly
Material returned bar, cleaning type chamber, cleaning die joint simultaneously match mould, turn to detect aluminium temperature during water, the temperature of melting furnace discharging mouth is 785-
800 DEG C, the temperature being transferred in machine furnace is 730-760 DEG C, checks whether the spectrum analysis of molten aluminum is qualified, and whether temperature meets technique
It is required that；
B, mold preheating, spray paint:
When mold being preheating to 150-250 DEG C with electrothermal tube, coating is uniformly sprayed in mold cavity surface, thick 3 to the 5 layers of painting of spray at cast gate
Material, makes cast gate paint thickness 1.5-2mm, is then preheating to 220-320 DEG C of process stipulation again, uses natural gas spraying gun at cast gate
It is preheating to 400 DEG C or more；
C, it molds:
It is first closed the sliding block of surrounding, recloses upper mold, to three times, whether observation mould open/close is smooth for sky molding two；
D, it is poured:
A, when just starting production, temperature of aluminum liquid is 760 DEG C, mould temperature uniformly after temperature control at 730 DEG C, the dwell time≤30s, with
Anti- gate freeze；
B, the closure oil cylinder of left and right sliding block is opened when being poured, and with locking sliding block, prevents die joint from running aluminium, left slider and right sliding block
Temperature is 220-280 DEG C；
C, start casting valve, air injection machine enters liter liquid-and fills type-pressurization-pressure maintaining-release-cooling-die sinking program, then
Casting is taken out with pickup device, pressure when rising liquid is 2000mpa, keeps 14-15s, and the pressure for filling pattern is 3000mpa, is kept
16-20s, pressure when pressurization are 4500mpa, dwell time 220-240s, cooling time 60s；
D, each road mold cooling system is opened since the second mould and is shown in a fully open operation, mold is cooled down, when cooling
Between >=60s；
E, side core is first opened when being opened, upper mold is then turned on and takes up casting and pay attention to preventing ejector beam from damaging casting；
F, in normal productive process, discovery mold cavity surface coating falls off and should fill spray in time, fills spray a cast gate every 5-8 mould
Coating makes cast gate paint thickness keep 1.5-2mm；
E, casting self-test:
A, every mould should check that cast(ing) surface has zero defect, such as stomata, shrinkage cavity, cold shut, it is found that defective casting should be isolated, and and
When adjusting process parameter；
B, non-processing outer surface roughness≤Ra3.2, mandril trace protrude < 1mm, and be recessed < 0.5mm；
C, it is sampled as starting the 3-4 mould of casting for the first time, when being sampled as always being poured the 1/2 of number for the second time, be sampled as the third time
When being always poured the 2/3 of number, continue to be poured after each inspection flaw detection is qualified, at all casting isolation before finding unqualified part
Reason.
Step of the present invention is simple, and production cost is low, in addition, cooling rate is fast in casting process, improves production efficiency.
Finally, it should be noted that although the present invention and its advantage have been described in detail above it should be appreciated that not
Can be carried out in the case where beyond the spirit and scope of the present invention being defined by the claims appended hereto various changes, substitution and
Transformation.Moreover, the scope of the present invention is not limited only to the specific reality of process, equipment described in specification, means, method and steps
Apply example.One of ordinary skilled in the art holds from the disclosure it will be readily understood that can be used according to the present invention
The row function essentially identical to corresponding embodiment described herein obtains the result essentially identical with it, existing and future
Process, equipment, means, method or step to be developed.Therefore, the attached claims are intended to wrap in the range of them
Include such process, equipment, means, method or step.
Claims (2)
1. a kind of pouring technology of low-pressure casting gas fuel valve remote controllers gear housing, it is characterised in that: specific step
It is rapid as follows:
A, preparation:
Should be baker 24 hours or more at 400-500 DEG C before black furnace use, to remove the moisture in burner hearth, mold is cleared up in disassembly
Material returned bar, cleaning type chamber, cleaning die joint simultaneously match mould, turn to detect aluminium temperature during water, the temperature of melting furnace discharging mouth is 785-
800 DEG C, the temperature being transferred in machine furnace is 730-760 DEG C, checks whether the spectrum analysis of molten aluminum is qualified, and whether temperature meets technique
It is required that；
B, mold preheating, spray paint:
When mold being preheating to 150-250 DEG C with electrothermal tube, coating is uniformly sprayed in mold cavity surface, thick 3 to the 5 layers of painting of spray at cast gate
Material, makes cast gate paint thickness 1.5-2mm, is then preheating to 220-320 DEG C of process stipulation again, uses natural gas spraying gun at cast gate
It is preheating to 400 DEG C or more；
C, it molds:
It is first closed the sliding block of surrounding, recloses upper mold, to three times, whether observation mould open/close is smooth for sky molding two；
D, it is poured:
A, when just starting production, temperature of aluminum liquid is 760 DEG C, mould temperature uniformly after temperature control at 730 DEG C, the dwell time≤30s, with
Anti- gate freeze；
B, the closure oil cylinder of left and right sliding block is opened when being poured, and with locking sliding block, prevents die joint from running aluminium, left slider and right sliding block
Temperature is 220-280 DEG C；
C, start casting valve, air injection machine enters liter liquid-and fills type-pressurization-pressure maintaining-release-cooling-die sinking program, then
Casting is taken out with pickup device, pressure when rising liquid is 2000mpa, keeps 14-15s, and the pressure for filling pattern is 3000mpa, is kept
16-20s, pressure when pressurization are 4500mpa, dwell time 220-240s, cooling time 60s；
D, each road mold cooling system is opened since the second mould and is shown in a fully open operation, mold is cooled down, when cooling
Between >=60s；
E, side core is first opened when being opened, upper mold is then turned on and takes up casting and pay attention to preventing ejector beam from damaging casting；
F, in normal productive process, discovery mold cavity surface coating falls off and should fill spray in time, fills spray a cast gate every 5-8 mould
Coating makes cast gate paint thickness keep 1.5-2mm；
E, casting self-test:
A, every mould should check that cast(ing) surface has zero defect, such as stomata, shrinkage cavity, cold shut, it is found that defective casting should be isolated, and and
When adjusting process parameter；
B, non-processing outer surface roughness≤Ra3.2, mandril trace protrude < 1mm, and be recessed < 0.5mm；
C, it is sampled as starting the 3-4 mould of casting for the first time, when being sampled as always being poured the 1/2 of number for the second time, be sampled as the third time
When being always poured the 2/3 of number, continue to be poured after each inspection flaw detection is qualified, at all casting isolation before finding unqualified part
Reason.
2. a kind of pouring technology of low-pressure casting gas fuel valve remote controllers gear housing according to claim 1,
It is characterized by: all needing to be put into filter screen before every mould casting in the step D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456497.2A CN109622920A (en) | 2018-11-30 | 2018-11-30 | The pouring technology of low-pressure casting gas fuel valve remote controllers gear housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456497.2A CN109622920A (en) | 2018-11-30 | 2018-11-30 | The pouring technology of low-pressure casting gas fuel valve remote controllers gear housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622920A true CN109622920A (en) | 2019-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456497.2A Pending CN109622920A (en) | 2018-11-30 | 2018-11-30 | The pouring technology of low-pressure casting gas fuel valve remote controllers gear housing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247870A (en) * | 2021-12-31 | 2022-03-29 | 江苏文灿压铸有限公司 | Low-pressure casting method and assembling method for integrally forming new energy automobile battery box |
Citations (8)
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|---|---|---|---|---|
| JPH1157979A (en) * | 1997-08-12 | 1999-03-02 | Yamaha Motor Co Ltd | Casting method |
| CN101508015A (en) * | 2009-02-23 | 2009-08-19 | 宁波合力模具科技股份有限公司 | Casting technique of heavy duty trucks gear box and die |
| CN102343418A (en) * | 2011-08-29 | 2012-02-08 | 西安西工大超晶科技发展有限责任公司 | Casting method of three-dimensional flow aluminum alloy impeller casting |
| CN104741574A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Low-pressure casting process of aluminum alloy steering joint |
| CN105081281A (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 process for cast-aluminum gearbox body of high-speed train |
| CN105081263A (en) * | 2015-09-17 | 2015-11-25 | 高文梅 | Casting method for high-strength corrosion-resisting brake assisting vacuum pump casing |
| CN204912720U (en) * | 2015-08-25 | 2015-12-30 | 来安县科来兴实业有限责任公司 | High speed train cast aluminium gear box box metal -mould low pressure casting filter screen |
| CN106216636A (en) * | 2016-08-26 | 2016-12-14 | 中国船舶重工集团公司第七二五研究所 | A kind of AlMg3 aluminium alloy tip arrester low-pressure casting method |
-
2018
- 2018-11-30 CN CN201811456497.2A patent/CN109622920A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157979A (en) * | 1997-08-12 | 1999-03-02 | Yamaha Motor Co Ltd | Casting method |
| CN101508015A (en) * | 2009-02-23 | 2009-08-19 | 宁波合力模具科技股份有限公司 | Casting technique of heavy duty trucks gear box and die |
| CN102343418A (en) * | 2011-08-29 | 2012-02-08 | 西安西工大超晶科技发展有限责任公司 | Casting method of three-dimensional flow aluminum alloy impeller casting |
| CN104741574A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Low-pressure casting process of aluminum alloy steering joint |
| CN105081281A (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 process for cast-aluminum gearbox body of high-speed train |
| CN204912720U (en) * | 2015-08-25 | 2015-12-30 | 来安县科来兴实业有限责任公司 | High speed train cast aluminium gear box box metal -mould low pressure casting filter screen |
| CN105081263A (en) * | 2015-09-17 | 2015-11-25 | 高文梅 | Casting method for high-strength corrosion-resisting brake assisting vacuum pump casing |
| CN106216636A (en) * | 2016-08-26 | 2016-12-14 | 中国船舶重工集团公司第七二五研究所 | A kind of AlMg3 aluminium alloy tip arrester low-pressure casting method |
Non-Patent Citations (1)
| Title |
|---|
| 程龙轩: "《铝合金车轮与钢制车轮、轮箍生产加工新工艺新技术及产品质量检测实用手册》", 30 July 2007, 北方工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247870A (en) * | 2021-12-31 | 2022-03-29 | 江苏文灿压铸有限公司 | Low-pressure casting method and assembling method for integrally forming new energy automobile battery box |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |