CN203992244U - The casting sand type of engine cylinder-body foundry goods - Google Patents
The casting sand type of engine cylinder-body foundry goods Download PDFInfo
- Publication number
- CN203992244U CN203992244U CN201420214899.2U CN201420214899U CN203992244U CN 203992244 U CN203992244 U CN 203992244U CN 201420214899 U CN201420214899 U CN 201420214899U CN 203992244 U CN203992244 U CN 203992244U
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- China
- Prior art keywords
- foundry goods
- ingate
- bending
- engine cylinder
- sprue
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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- 238000005266 casting Methods 0.000 title claims abstract description 25
- 239000004576 sand Substances 0.000 title claims abstract description 24
- 238000005452 bending Methods 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 36
- 229910052742 iron Inorganic materials 0.000 abstract description 18
- 239000007788 liquid Substances 0.000 abstract description 17
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model discloses a kind of casting sand type of foundry goods, be specifically related to a kind of casting sand type of engine cylinder-body foundry goods.The utility model provides a kind of casting sand type at the better engine cylinder-body foundry goods of when cast melt flows, comprise foundry goods chamber, runner system and running gate system, described running gate system comprises gas outlet, upper sprue, lower sprue, bending ingate, cross gate and rectangle ingate, cross gate is concordant with bottom, foundry goods chamber, rectangle ingate is arranged on foundry goods chamber bottom side, bending ingate is arranged on foundry goods middle part, and described rectangle ingate and bending ingate are all communicated with cross gate; Described lower sprue one end is communicated with upper sprue, and the other end is communicated with cross gate.Due to the middle part from rectangle ingate to foundry goods chamber and the bottom pouring that have adopted bending ingate and, so both guaranteed the discharge completely of air, also can guarantee the duration of pouring of iron liquid.
Description
Technical field
The utility model relates to the casting sand type of foundry goods, is specifically related to a kind of casting sand type of engine cylinder-body foundry goods.
Background technology
China's automobile industry development in recent years is rapid, and Main Auto enterprise (group) will form 1,841 ten thousand of car load production capacities in the end of the year in 2011, and corresponding engine production capacity has reached produces 1671 ten thousand per year.Along with social economy is fast-developing and living standards of the people improve constantly, China's automobile localization process is constantly accelerated, and automobile consumption is in great demand, and automobile pollution keeps rapid growth trend.2006 to 2010, auto output increased by 9,510,000 every year; According to one's analysis, the automobile pollution of China is more than 7,000 ten thousand at present, to the year two thousand twenty, will reach 200,000,000, namely will have a net increase of every year 1300 ten thousand, considers the factors such as motor vehicle liquidation, and the amount of having a net increase of will be 20,000,000 left and right every year.Huge automobile market recoverable amount, will promote the great development in automobile engine cylinder-body market.
Cylinder body is most critical on engine, the most complicated foundry goods, its wall thickness thinnest part is often less than 3mm, cylinder block casting production application is the widest remains green sand, has the static pressure molding line of the advantages such as processability is good, energy consumption is low, noise is little, pollute less, efficiency is high, reliable and gas and rushes mo(u)lding line and use comparatively extensive.In recent years, domestic and international mo(u)lding line manufacturing firm updating moulding machine, successively occurred that gas punching adds compacting, air-flow gains, and gas punching adds compacting, static pressure adds compacting, the compacting of active multiple contact, moulding extruding etc. and adds sand mode, sand hardness is homogenising more, becomes cylinder block casting and produces first-selected mo(u)lding equipment.Some big-and-middle-sized diesel engine cylinder block foundry enterprises, adopt pepset self-hardening sand technique and triethylamine cold core box process, and this is also the optimal selection of energy-saving low-carbon.
The production of engine, processing, assembling are a complexity and huge engineering, can not only create a large amount of employment, more can be converted into the technological achievement with China's independent intellectual property right.The production technology of grasping engine cylinder-body, not only can promote the production domesticization of engine, improves annual production; And can lay a solid foundation and valuable experience is provided for the more large-scale Engine Series of localization in future.Therefore, greatly develop the suitability for industrialized production of engine imperative.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of casting sand type at the better engine cylinder-body foundry goods of when cast melt flows.
The utility model solves the casting sand type of the engine cylinder-body foundry goods that its technical problem adopts, comprise foundry goods chamber, runner system and running gate system, described running gate system comprises gas outlet, upper sprue, lower sprue, bending ingate, cross gate and rectangle ingate, cross gate is concordant with bottom, foundry goods chamber, rectangle ingate is arranged on foundry goods chamber bottom side, bending ingate is arranged on foundry goods middle part, and described rectangle ingate and bending ingate are all communicated with cross gate; Described lower sprue one end is communicated with upper sprue, and the other end is communicated with cross gate.
Further, described running gate system also comprises filter, and described filter is arranged between lower sprue and upper sprue.
Be further, the sectional area sum of described upper sprue and lower sprue is that Σ is straight, the sectional area of described cross gate is that Σ is horizontal, the sectional area sum of described bending ingate and rectangle ingate is in Σ, the sectional area of described filter is Σ mistake, the Σ of take is directly benchmark, and Σ is straight: Σ is horizontal: in Σ: Σ mistake=1:1～2:1～2:8～9.
Further, total cross-sectional area >=bending ingate of gas outlet and the total cross-sectional area sum of rectangle ingate.
Further, described runner system comprises bright top riser and satrain relief, and bright top riser is arranged on the thick large part place of foundry goods top of chamber, and satrain relief is arranged on side, foundry goods chamber close foundry goods top of chamber.
Further, on the inwall in described foundry goods chamber, scribble one deck containing the dope layer of flaxen fiber.
The beneficial effects of the utility model are:
1, due to the middle part from rectangle ingate to foundry goods chamber and the bottom pouring that have adopted bending ingate and, and rectangle ingate is lower than bending ingate, therefore iron liquid first mainly enters foundry goods chamber from rectangle ingate, iron liquid is filled foundry goods chamber from down to up gradually, and get rid of wherein air, along with the height of iron liquid in foundry goods chamber raises, pressure difference in rectangle ingate and bending ingate reduces gradually, the iron liquid flowing out in bending ingate increases gradually, thereby increased the flow of iron liquid, complete fast cast, both guaranteed the discharge completely of air, also can guarantee the duration of pouring of iron liquid.
2, for increasing the air permeable effect of casting mold, prevent from forming in foundry goods pore, in the coating that the utility model is used in routine, added specially and contained the flaxen fiber that increases material gas permeability, greatly improved the gas permeability of coating, make the gas of iron liquid in cavity filling process can be smoothly through coating and molding sand and outside eliminating type, thereby reduce the air pressure in die cavity, make iron liquid circulation smooth and easy without hindrance, while having solved conventional method casting large-scale engine cylinder-body foundry goods due to poor the brought casting defect problem of gas permeability.
Accompanying drawing explanation
Fig. 1 be adopt the utility model engine cylinder-body foundry goods casting method apparatus for pouring just wait side view;
Fig. 2 is the right TV structure schematic diagram that adopts the utility model apparatus for pouring;
Fig. 3 is the structural representation of facing that adopts the utility model apparatus for pouring.
Parts, position and numbering in figure: 1, cylinder body bottom side; 2, rectangle ingate; 3, cross gate; 4, bending ingate; 5, lower sprue; 6, foundry goods chamber; 7, filter; 8, upper sprue; 9, gas outlet; 10, bright top riser; 11, the side on foundry goods top; 12, satrain relief; 13, foundry goods middle part.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Sand mould structure of the present utility model as shown in Figure 1, Figure 2 and Figure 3, comprise foundry goods chamber 6, runner system and running gate system, described running gate system comprises gas outlet 9, upper sprue 8, lower sprue 5, bending ingate 4, cross gate 3 and rectangle ingate 2, cross gate 3 is concordant with 6 bottoms, foundry goods chamber, rectangle ingate 2 is arranged on foundry goods chamber 6 bottom sides, bending ingate 4 is arranged on 6 middle parts, foundry goods chamber, and described rectangle ingate 2 and bending ingate 4 are all communicated with cross gate 3; Described lower sprue 5 one end are communicated with upper sprue 8, and the other end is communicated with cross gate 3.Lower sprue 5 is located at the centre of middle two bending ingates 4 and cross gate 3.The utility model adopts side bottom gating, utilizes middle part and the bottom feed cast of bending ingate 4 and 2 pairs of foundry goods of rectangle ingate simultaneously.When cast, iron liquid enters from upper sprue 8, then flow in lower sprue 5, enter into again cross gate 3, iron liquid enters in rectangle ingate 2 and bending ingate 4 after cross gate 3 dispersions of strip, rectangle ingate 2 and bending ingate 4 are provided with a plurality of, because rectangle ingate 2 is lower than bending ingate 4, therefore iron liquid first mainly enters foundry goods chamber 6 from rectangle ingate 2, iron liquid is filled foundry goods chamber 6 from down to up gradually, and get rid of wherein air, along with the height of iron liquid in foundry goods chamber 6 raises, pressure difference in rectangle ingate 2 and bending ingate 4 reduces gradually, the iron liquid flowing out in bending ingate 4 increases gradually, thereby increased the flow of iron liquid, complete fast cast, both guaranteed the discharge completely of air, also can guarantee the duration of pouring of iron liquid.
Described running gate system also comprises filter 7, and described filter 7 is arranged between lower sprue 5 and upper sprue 8; The sectional area sum of described upper sprue 8 and lower sprue 5 is that Σ is straight, the sectional area of described cross gate 3 is that Σ is horizontal, the sectional area sum of described bending ingate 4 and rectangle ingate 2 is in Σ, the sectional area of described filter 7 is Σ mistake, the Σ of take is directly benchmark, and Σ is straight: Σ is horizontal: in Σ: Σ mistake=1:1～2:1～2:8～9.In casting, unified flow velocity and the stationarity that reflects molten iron by sectional area ratio, for example in the utility model, each running channel cross section ratio reflects that this running gate system is unchoked running system, choked flow cross section is suitable for reading at sprue.The open large percentage of each constituent element of this running gate system, when molten metal is full of running gate system, is flow regime with no pressure; Fill type steady, little to die cavity scouring force, and pushing off the slag ability is strong.
In order to obtain good exhaust effect and compensate for shrinkage, total cross-sectional area >=bending ingate 4 of gas outlet 9 and the total cross-sectional area sum of rectangle ingate 2; Described runner system comprises bright top riser 10 and satrain relief, and bright top riser 10 is arranged on the thick large part place at 6 tops, foundry goods chamber, and satrain relief 12 is arranged on 6 sides, foundry goods chamber 6 tops, close foundry goods chamber.
Due to ISOMOL800 coating suspension good stability; There is good thixotropy and levelability; Brushing is without brush mark, and coating is firm, and gas forming amount is low; Be easy to light, fuel value is high; Anti-stick grittiness is good, and cast(ing) surface is bright and clean.And coating can be dried sand mold in combustion process, reduce the water content of sand.Thereby while having solved casting large-scale engine cylinder-body foundry goods due to the casting flaw that gas permeability is poor and the water content height of sand brings.So this patent coating used is the ISOMOL800 of Fushi section and the compound alcohol-base foundry coating of the dark TS141 of Chengdu section.Wherein, be painted on and in the coating on core and sand mold, contain the flaxen fiber of counting 0.2～1.5% by coating weight.
The utility model has also been used the core placement technology of development voluntarily.Because this engine cylinder-body foundry goods is complex-shaped, the core using in modeling process is numerous, and the location of mud core is the link of most critical in whole modeling process, and the accuracy of mud core location is directly connected to the dimensional accuracy of foundry goods.If location produces certain deviation, can cause the dimensional accuracy of foundry goods can not reach instructions for use, thereby cause product rejection.For guaranteeing the accurate location of numerous cores, the utility model has adopted a kind of core placement technology of development voluntarily, before core assembling, the main positions at die cavity arranges a positioning rod, just can guarantee to use the precise positioning of core, thereby effectively promote the dimensional accuracy of cylinder block casting.
Claims (6)
1. the casting sand type of engine cylinder-body foundry goods, comprise foundry goods chamber (6), runner system and running gate system, it is characterized in that: described running gate system comprises gas outlet (9), upper sprue (8), lower sprue (5), bending ingate (4), cross gate (3) and rectangle ingate (2), cross gate (3) is concordant with foundry goods chamber (6) bottom, rectangle ingate (2) is arranged on foundry goods chamber (6) bottom side, bending ingate (4) is arranged on foundry goods middle part, and described rectangle ingate (2) and bending ingate (4) are all communicated with cross gate (3); Described lower sprue (5) one end is communicated with upper sprue (8), and the other end is communicated with cross gate (3).
2. the casting sand type of engine cylinder-body foundry goods as claimed in claim 1, is characterized in that: described running gate system also comprises filter (7), and described filter (7) is arranged between lower sprue (5) and upper sprue (8).
3. the casting sand type of engine cylinder-body foundry goods as claimed in claim 2, it is characterized in that: the sectional area sum of described upper sprue (8) and lower sprue (5) is that ∑ is straight, the sectional area of described cross gate (3) is that ∑ is horizontal, the sectional area sum of described bending ingate (4) and rectangle ingate (2) is in ∑, the sectional area of described filter (7) is ∑ mistake, the ∑ of take is directly benchmark, and ∑ is straight: ∑ is horizontal: in ∑: ∑ mistake=1: 1～2: 1～2: 8～9.
4. the casting sand type of engine cylinder-body foundry goods as claimed in claim 1, is characterized in that: total cross-sectional area >=bending ingate (4) of gas outlet (9) and the total cross-sectional area sum of rectangle ingate (2).
5. the casting sand type of engine cylinder-body foundry goods as claimed in claim 1, it is characterized in that: described runner system comprises bright top riser (10) and satrain relief (12), bright top riser (10) is arranged on the thick large part place at top, foundry goods chamber (6), and satrain relief (12) is arranged on side, foundry goods chamber (6) top, close foundry goods chamber (6).
6. the casting sand type of engine cylinder-body foundry goods as claimed in claim 1, is characterized in that: on the inwall in described foundry goods chamber (6), scribble one deck containing the dope layer of flaxen fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214899.2U CN203992244U (en) | 2014-04-29 | 2014-04-29 | The casting sand type of engine cylinder-body foundry goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214899.2U CN203992244U (en) | 2014-04-29 | 2014-04-29 | The casting sand type of engine cylinder-body foundry goods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203992244U true CN203992244U (en) | 2014-12-10 |
Family
ID=52032309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420214899.2U Expired - Lifetime CN203992244U (en) | 2014-04-29 | 2014-04-29 | The casting sand type of engine cylinder-body foundry goods |
Country Status (1)
| Country | Link |
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| CN (1) | CN203992244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856654A (en) * | 2018-06-26 | 2018-11-23 | 康诺精工有限公司 | A kind of water-cooling middle extremely casting technique |
| CN109967696A (en) * | 2019-01-31 | 2019-07-05 | 马仁殿 | A kind of subway urban rail brake system cylinder casting technique |
| CN111482556A (en) * | 2020-05-21 | 2020-08-04 | 宜宾普什联动科技有限公司 | Casting method of engine cylinder block casting |
-
2014
- 2014-04-29 CN CN201420214899.2U patent/CN203992244U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856654A (en) * | 2018-06-26 | 2018-11-23 | 康诺精工有限公司 | A kind of water-cooling middle extremely casting technique |
| CN109967696A (en) * | 2019-01-31 | 2019-07-05 | 马仁殿 | A kind of subway urban rail brake system cylinder casting technique |
| CN111482556A (en) * | 2020-05-21 | 2020-08-04 | 宜宾普什联动科技有限公司 | Casting method of engine cylinder block casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |
|
| CX01 | Expiry of patent term |