CN105964918B - Lightweight balance shaft beam lost foam casting process method - Google Patents
Lightweight balance shaft beam lost foam casting process method Download PDFInfo
- Publication number
- CN105964918B CN105964918B CN201610479760.4A CN201610479760A CN105964918B CN 105964918 B CN105964918 B CN 105964918B CN 201610479760 A CN201610479760 A CN 201610479760A CN 105964918 B CN105964918 B CN 105964918B
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- CN
- China
- Prior art keywords
- sprue
- sand
- balance shaft
- shaft beam
- model
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Abstract
The present invention proposes lightweight balance shaft beam lost foam casting process method, is specially：（1）The structure design of lightweight balance shaft beam：Connecting bracket, propelling rod support, crossbeam are the overall structure of one-step casting shaping, and are provided with Lightened structure；（2）Design of Runner System：Cross gate is connected with sprue, and sprue cup is provided with the top of sprue, and 3 ingates are connected to below cross gate, and are connected with product model, and 4 slag traps are divided into two groups, are separately positioned on the both ends of product model；Position corresponding to propelling rod support on product model is provided with chill；（3）Bury case moulding；（4）Cast.Using the present invention, injection system structure is simple, compact, is easy to moulding, molten metal to be easily full of die cavity, solves the defects of existing balance shaft beam impact resistance is generally poor, reaches the casting purpose of monolithic construction.
Description
Technical field
The present invention relates to lightweight balance shaft beam lost foam casting process method.
Background technology
It is demonstrated experimentally that if vehicle complete vehicle quality mitigates 10%, fuel efficiency can improve 6%-8%；Kerb weight often mitigates
100kg, fuel consumption per hundred kilometers can reduce 0.3-0.6L.By the weight reduction of heavy truck, reduce oil consumption, with reduce discharge of poisonous waste,
Save weight metering charging expenditure, improve loading capacity usage factor, increase transportation profit.Automobile can drop vehicle body center of gravity after mitigating quality
Low, running car is more stable, comfortable.Lightweight can reduce rolling resistance, acceleration resistance and grade resistance, can also be real
It is now high-power to create conditions.Balance shaft suspension is one of key components and parts of commercial car, and its light-weight design has necessity.
Existing dump Truck Frame balance shaft beam assembly has diversified forms, wherein most often：By 2 connection branch
Frame, 2 propelling rod supports, 2 punch forming header boards form through riveting.The impact resistance of such balance shaft beam generally compared with
Difference, balance shaft beam is easily torn when frame assembly carries, and makes the reduction of frame assembly performance.
The content of the invention
In order to realize the lightweight of balance shaft beam, solve that existing balance shaft beam impact resistance is universal poor to be lacked
Fall into, reach the casting purpose of monolithic construction, the present invention proposes lightweight balance shaft beam lost foam casting process method.
Lightweight balance shaft beam lost foam casting process method, it is characterised in that comprise the following steps that：
（1）The structure design of lightweight balance shaft beam：Connecting bracket, propelling rod support, crossbeam are one-step casting shapings
Overall structure, be provided with oval loss of weight chamber in the middle part of crossbeam, the connecting bracket at both ends is symmetrical structure, the middle position of connecting bracket
Lightening grooves are installed, the oral area of lightening grooves is connected by reinforcement；
（2）Design of Runner System：Including 3 ingates, 1 cross gate, 4 slag traps, 1 sprue, cross gate with
Sprue is connected, and is provided with sprue cup at the top of sprue, and 3 ingates are connected to below cross gate, 3 ingates directly with
Product model connects, and 4 slag traps are divided into two groups, are separately positioned on the both ends of product model；Correspond on product model and push away
The position of power rod bearing is provided with chill；
（3）Bury case moulding：
1）Add bed load, place model：Bed load height 200-300mm is filled out, vibrates 10s, vibration frequency：43Hz, bed load is scraped
Into plane, one case 1 group model of placement, ensure model in sandbox centre position；
2）Back-up sand is vibrated：First plus sand is to certain altitude, ensures no-sundries, vibrates 20s, vibration frequency：46Hz ；Uniformly fill out
Sand is extremely concordant with sprue upper end, vibrates 40s, vibration frequency：46Hz ；
3）Plastic covering film, add top sand：Plastic covering film, top sand is then filled, thickness is more than 50mm, by plastics mould
It is real, ensure that the plastic foil of sprue cup top surface higher than face 20mm is sand flat, is then scratched, be allowed to expose and ensure to pour by sprue cup plane
Cup top surface is without molding sand；
（4）Cast：
1）Pouring temperature：1450-1480℃；2）Pour into a mould negative pressure：-0.04--0.045MPa；3）It is poured, pressurize 8-
10min。
Beneficial effect：Using the present invention, injection system structure is simple, compact, is easy to moulding, and it is easy to save metal, molten metal
Full of die cavity, relative superiority or inferiority bottom in molten metal temperature, solidification sequence from bottom to top, is advantageous to play the effect of rising head, cast
Feeding, the defects of can preventing from pouring to thin-section casting less than, cold shut；Place at chill position category heavy wall and crucial stress, chill
It can effectively avoid producing casting shrinking hole herein；The arrangement of 3 ingates makes molten metal flowing more reasonable, avoids molten metal pair
The impact of coating；So as to improve the shock resistance of balance shaft beam, reach the casting purpose of monolithic construction.
Brief description of the drawings
Fig. 1 is the front view of lightweight Integral cross beam.
Fig. 2 is the top view of lightweight Integral cross beam.
Fig. 3 is the side view of lightweight Integral cross beam.
Fig. 4 is the front view of running gate system in the present invention.
Fig. 5 is the top view of running gate system in the present invention.
Embodiment
With reference to shown in Fig. 1-Fig. 5, it is as follows to further describe the present invention：
Lightweight balance shaft beam lost foam casting process method, it is characterised in that：
（1）The structure design of lightweight balance shaft beam：Connecting bracket 1, propelling rod support 2, crossbeam 3 be one-step casting into
The overall structure of type, is provided with oval loss of weight chamber 4 in the middle part of crossbeam, and the connecting bracket at both ends is symmetrical structure, in connecting bracket
Position has installed lightening grooves 5, and the oral area of lightening grooves connects 6 by reinforcement and connect；
（2）Design of Runner System：3 10,1 sprues 8 of slag trap of cross gate 9,4 of ingate 11,1, cross gate 9
It is connected with sprue 8,7,3 ingates 11 of sprue cup is provided with the top of sprue and are connected to below cross gate 9, are poured in 3
Mouth 11 is directly connected with product model, and 4 slag traps 10 are equally divided into two groups, are separately positioned on the both ends of product model；Producing
Position on product model corresponding to propelling rod support 2 is provided with chill（Do not expressed in figure）；
（3）Bury case moulding：
1）Add bed load, place model：Bed load height 200-300mm is filled out, vibrates 10s, vibration frequency：43Hz, bed load is scraped
Into plane, one case 1 group model of placement, ensure model in sandbox centre position；
2）Back-up sand is vibrated：First（Use flexible manual sanding device）Add sand to certain altitude,（Will fixed batten and plastics
Rope and foam block are taken out）Ensure no-sundries, vibrate 20s, vibration frequency：46Hz ；Uniform back-up sand on model sprue to holding level with both hands
Together, 40s, vibration frequency are vibrated：46Hz ；
3）Plastic covering film, add top sand：Plastic covering film, top sand is then filled, thickness is more than 50mm, by plastics mould
It is real, ensure that the plastic foil of sprue cup top surface higher than face 20mm is sand flat, is then scratched, be allowed to expose and ensure to pour by sprue cup plane
Cup top surface is without molding sand；
（4）Cast：
1）Pouring temperature：1450-1480℃；2）Pour into a mould negative pressure：-0.04--0.045MPa；3）It is poured, pressurize 8-
10min。
Wherein, symbol " Hz " is the unit " hertz " of frequency.
Claims (1)
1. lightweight balance shaft beam lost foam casting process method, it is characterised in that comprise the following steps that：
（1）The structure design of lightweight balance shaft beam：Connecting bracket, propelling rod support, crossbeam are the whole of one-step casting shaping
Body structure, crossbeam middle part are provided with oval loss of weight chamber, and the connecting bracket at both ends is symmetrical structure, and the medium position of connecting bracket is set
There are lightening grooves, the oral area of lightening grooves is connected by reinforcement；
（2）Design of Runner System：Including 3 ingates, 1 cross gate, 4 slag traps, 1 sprue, cross gate is with directly pouring
Road is connected, and is provided with sprue cup at the top of sprue, and 3 ingates are connected to below cross gate, and 3 ingates are directly and product
Model connects, and 4 slag traps are divided into two groups, are separately positioned on the both ends of product model；Correspond to distance rod on product model
The position of bearing is provided with chill；
（3）Bury case moulding：
1）Add bed load, place model：Bed load height 200-300mm is filled out, vibrates 10s, vibration frequency：43Hz, bed load is spread to flat
Face, one case 1 group model of placement, ensures model in sandbox centre position；
2）Back-up sand is vibrated：First plus sand is to certain altitude, ensures no-sundries, vibrates 20s, vibration frequency：46Hz ；Uniform back-up sand is extremely
It is concordant with model sprue upper end, vibrate 40s, vibration frequency：46Hz ；
3）Plastic covering film, add top sand：Plastic covering film, top sand is then filled, thickness is more than 50mm, plastic foil is compacted, and protects
Then the plastic foil of sprue cup top surface is scratched higher than face 20mm is sand flat, is allowed to expose and ensure sprue cup by card sprue cup plane
Top surface is without molding sand；
（4）Cast：
1）Pouring temperature：1450-1480℃；2）Pour into a mould negative pressure：-0.04--0.045MPa；3）It is poured, pressurize 8-10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479760.4A CN105964918B (en) | 2016-06-28 | 2016-06-28 | Lightweight balance shaft beam lost foam casting process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479760.4A CN105964918B (en) | 2016-06-28 | 2016-06-28 | Lightweight balance shaft beam lost foam casting process method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105964918A CN105964918A (en) | 2016-09-28 |
| CN105964918B true CN105964918B (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479760.4A Active CN105964918B (en) | 2016-06-28 | 2016-06-28 | Lightweight balance shaft beam lost foam casting process method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130960B (en) * | 2021-11-26 | 2024-04-12 | 四川建安工业有限责任公司 | Preparation method of trailing arm assembly of rear torsion beam suspension |
| CN114570877B (en) * | 2022-03-02 | 2023-12-22 | 安徽合力股份有限公司合肥铸锻厂 | Casting process of large-scale agricultural machinery cross beam |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506427C (en) * | 2004-05-19 | 2009-07-01 | 新疆维吾尔自治区第三机床厂 | Method for producing milling-ball by vacuum sealing and its shaped mould |
| CN1911557A (en) * | 2005-08-08 | 2007-02-14 | 冯玉全 | Method for casting miodle trough casting of coal mine scraper conveyor using demould |
| CN101332490B (en) * | 2008-07-04 | 2011-03-30 | 日月重工股份有限公司 | Medium-pressure heavy-section outer-cylinder iron casting gating system of steam turbine |
| CN201694247U (en) * | 2010-05-07 | 2011-01-05 | 中国重汽集团济南动力有限公司 | Cast cross beam for heavy truck frame |
| US8714232B2 (en) * | 2010-09-20 | 2014-05-06 | GM Global Technology Operations LLC | Method of making a brake component |
| CN102328025B (en) * | 2011-08-25 | 2013-07-10 | 陕西理工学院 | Lost foam casting method of balance shaft housing |
| CN102284679A (en) * | 2011-09-19 | 2011-12-21 | 滁州金诺实业有限公司 | Method for casting engine cylinder cover by using lost foam |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Lost foam casting process for lightweight balance shaft beam Effective date of registration: 20221013 Granted publication date: 20180302 Pledgee: Fangxian Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: HUBEI XINGYUAN SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2022980018301 |
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