CN103801659B - A kind of running gate system for aluminium alloy sleeper beam foundry goods - Google Patents
A kind of running gate system for aluminium alloy sleeper beam foundry goods Download PDFInfo
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- CN103801659B CN103801659B CN201310552627.3A CN201310552627A CN103801659B CN 103801659 B CN103801659 B CN 103801659B CN 201310552627 A CN201310552627 A CN 201310552627A CN 103801659 B CN103801659 B CN 103801659B
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Abstract
The present invention is a kind of running gate system for aluminium alloy sleeper beam foundry goods, and this system comprises the cross gate system be positioned at bottom foundry goods, and molten metal enters cross gate and enter ingate after diffluence pass, and molten metal enters foundry goods die cavity by ingate; It is steady that this running gate system can realize high-speed railway passenger aluminium alloy sleeper beam Filling Processes of Castings, change tradition arranges the thick large part of riser feeding technique in foundry goods upper end, foundry goods heat distribution balances, and the effective thick large part of feeding foundry goods of energy, therefore Internal Quality of Cast is better.
Description
Technical field
The present invention is a kind of running gate system for aluminium alloy sleeper beam foundry goods, belongs to aluminium alloy casting technology field.
Background technology
Aluminium alloy castings due to quality light, specific strength is high, makes aluminium alloy castings increasing in the demand of the industries such as Aeronautics and Astronautics, weapons and high ferro.Sleeper beam is the strength member on bullet train chassis, and traditional sleeper beam is all steel-casting, uses high-performance aluminium alloy single-casting instead and can alleviate train deadweight, reduce manufacturing cost.Therefore, sleeper beam adopts high-performance aluminium alloy single-casting to replace steel-casting to be that one of important content of bullet train lightweight research is carried out in countries in the world.
Because the bullet train of current domestic operation all adopts foreign technology, train sleeper beam is by external buying.Along with the production domesticization of bullet train manufacturing technology, aluminium alloy sleeper beam foundry goods also can forward domestic production to from external import gradually.Because sleeper beam foundry goods is medium primary structure member, require that foundry goods bulk properties is higher, therefore require that foundry goods must have good dense structure's property, high internal soundness, but for the foundry goods (average wall thickness 15 ~ 25mm, thickness maximum 90mm) of large scale (long 3100mm × 1300mm × 260mm) and large wall thickness, obtain compact tissue and have larger difficulty, traditional pouring technology Design Mode is difficult to the sleeper beam foundry goods obtaining high-quality.The large-scale thick large aluminium alloy castings obtaining high-quality generally can carry out designing and controlling from following four aspects of casting process:
One, pouring type is selected.The conventional pouring type of large-scale thick large aluminium alloy castings can be divided into gravity-assist pouring and anti-gravity pouring.Gravity-assist pouring mode is free castable under liquid gravity, simple and convenient, production efficiency is higher, can be used for the less demanding batch production foundry goods of metallurgical quality, but owing to being freely cast in gravity lower charging type, fill type pressure head and filling velocity less, so mold-filling capacity, after cast dense structure's degree all not as good as Countergravity casting method.Antigravity casting is the pouring procedure being made molten metal mold filling and solidification under stress by equipment, generally comprises adjustable pressure casting, counter-pressure casting, low pressure casting and suction pouring.Compare gravity-assist pouring and can obtain larger mold filling pressure and freezing pressure, be conducive to heavy castings and solidify and obtain the excellent foundry goods of internal soundness.
Two, casting process parameters is selected.According to the wall thickness of foundry goods, highly, overall size size, complexity and internal soundness requirement etc. select suitable casting process parameters.Mold filling pressure when technological parameter generally has a cast under molten metal temperature, mold temperature, antigravity casting, filling velocity and freezing pressure etc., by engineer testing, find best above-mentioned parameter, what be conducive to thick and large casting fills type.
Three, Design of Runner System.Good system for casting and pouring is that acquisition shape is complete, the key of premium casting, filling in type, process of setting at molten metal, no matter be the selection of pouring type or the optimization of cast parameter, is all finally act on foundry goods by running gate system.Running gate system decides whether finally obtain premium casting.Good running gate system guide wire liquid smooth flow in die cavity, realize molten metal at controlled lower charging type, Under Pressure Solidification, and ensure that each position of foundry goods obtains sufficient feeding, be both conducive to filling type, can have ensured again to fill type steadily and can ensure that Internal Quality of Cast is superior.
Four, Quench measure.When the casting of thick and large casting, except molten metal Stable Filling will be made, strengthen except feeding, also need to reduce the overheated of thick large part, improve the cooling velocity of thick large part.In conjunction with the concrete structure of foundry goods, the pouring type of employing and feeding mode, suitable Quench mode is set in the thick large part of foundry goods, makes foundry goods set up rational thermograde in thick large part, ensure the metallurgical quality of thick large part.
Summary of the invention
The present invention designs for above-mentioned the deficiencies in the prior art just and provides bullet train aluminium alloy sleeper beam casting pouring technique, its objective is and ensure that the molten metal flowing in casting process of bullet train aluminium alloy sleeper beam foundry goods steadily, solidifies the foundry goods that rear acquisition quality is intact.
The object of the invention is to be achieved through the following technical solutions:
This kind is for the running gate system of aluminium alloy sleeper beam foundry goods, described aluminium alloy sleeper beam foundry goods refers to bullet train aluminium alloy sleeper beam foundry goods (6), hereinafter referred to as foundry goods (6), the appearance and size of this foundry goods (6) is 3100mm × 1300mm × 260mm, average wall thickness is 15mm ~ 25mm, thickness, two ends size is more than 90mm, 6 perpendicular muscle and 4 vertical with it horizontal bars are had in inner chamber, article 6, perpendicular muscle is respectively perpendicular muscle A ~ F, article 6, longitudinally foundry goods center line (5) is left for perpendicular muscle, right symmetry, perpendicular muscle A, D is respectively 440mm apart from the distance of foundry goods center line (5), perpendicular muscle B, E is respectively 780mm apart from the distance of foundry goods center line (5), perpendicular muscle C, F is respectively 1090mm apart from the distance of foundry goods center line (5), article 4, horizontal bar is respectively horizontal bar G ~ J, horizontal bar G ~ J is respectively 130mm apart from the distance of locating surface (7), 0mm, 145mm and 335mm, locating surface (7) is the horizontal plane of lower surface (8) 500mm of distance foundry goods (6), horizontal, the thickness of perpendicular muscle is 15mm, it is characterized in that: the running gate system of this foundry goods (6) comprising:
A draining hole for bottom pouring (1), the center line of draining hole (1) is by the intersection point of foundry goods center line (5) with locating surface (7), the lower surface of draining hole (1) is 380mm ~ 400mm apart from the distance bottom foundry goods (6), the diameter of draining hole (1) is 120mm ~ 140mm, be highly 40mm ~ 60mm, pattern draft is 2 ° ~ 4 °;
Be positioned at the ground floor cross gate (2) of draining hole (1) top, its cross section is isosceles trapezoid, length is 2200mm ~ 2300mm, be highly 90mm ~ 100mm, pattern draft 3 ° ~ 7 °, draining hole (1) is connected with in the middle of ground floor cross gate (2);
Be positioned at 3 diffluence pass on ground floor cross gate (2), be respectively diffluence pass K ~ M, diffluence pass is cross section is circular cylinder, a diffluence pass K is connected with in the middle of ground floor cross gate (2), diffluence pass L, M are distributed in the both sides of ground floor cross gate (2), the distance of distance centre is 930mm ~ 980mm, the diameter of diffluence pass K is 100mm ~ 105mm, and the diameter of diffluence pass L, M is 110mm ~ 120mm, and the height of 3 diffluence pass is 50mm ~ 60mm;
Be positioned at the second layer cross gate on diffluence pass K ~ M, second layer cross gate is made up of sprue (3) and laterally vertical with sprue (3) and through (3) 9 runners, is respectively runner N, O, P, Q, R, S, T, U, V, sprue (3) cross section is isosceles trapezoid, and the width of sprue (3) is 180mm, and length is 3100mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °, and runner R is positioned on foundry goods center line (5), runner N, O, P, Q and runner V, U, T, S is distributed in center line (5) both sides and symmetrical, runner N, O, P, Q and runner V, U, T, S also along sprue (3) symmetrical cloth, runner N, O, P, Q is respectively 440mm apart from the distance of center line (5), 780mm, 1090mm and 1500mm, runner N, the length of V is 1500mm ~ 1550mm, runner O, P, Q, R, S, T, U length is 1010mm ~ 1050mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °,
Second layer cross gate is provided with 52 ingates (9), ingate (9) is positioned at the runner N of second layer cross gate, O, P, Q, R, S, T, U, on V, each distribution 5 ingates (9) on N and V runner, O, P, Q, R, S, T, each distribution 6 ingates (9) on U runner, ingate (9) is connected with foundry goods (6), connect and be positioned at horizontal bar G ~ J, on upper surface (4) and lower surface (8) position, the sectional dimension of ingate and foundry goods (6) intersection is 80mm × 25mm, pattern draft is 3 ° ~ 7 °.
The advantage of technical solution of the present invention is: it is steady that this running gate system can realize high-speed railway passenger aluminium alloy sleeper beam Filling Processes of Castings, and foundry goods heat distribution balances, and the effective thick large part of feeding foundry goods of energy, therefore Internal Quality of Cast is better.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of aluminium alloy sleeper beam foundry goods (6)
Fig. 2 is the inner-cavity structure schematic diagram of aluminium alloy sleeper beam foundry goods (6)
Fig. 3 is the injection system structure schematic diagram of aluminium alloy sleeper beam foundry goods (6)
Detailed description of the invention
Below with reference to drawings and Examples, invention technical scheme is further described:
Shown in accompanying drawing 1 ~ 3, this kind is for the running gate system of aluminium alloy sleeper beam foundry goods, described aluminium alloy sleeper beam foundry goods refers to bullet train aluminium alloy sleeper beam foundry goods (6), hereinafter referred to as foundry goods (6), the appearance and size of this foundry goods (6) is 3100mm × 1300mm × 260mm, average wall thickness is 15mm ~ 25mm, thickness, two ends size is more than 90mm, 6 perpendicular muscle and 4 vertical with it horizontal bars are had in inner chamber, article 6, perpendicular muscle is respectively perpendicular muscle A ~ F, article 6, longitudinally foundry goods center line (5) is left for perpendicular muscle, right symmetry, perpendicular muscle A, D is respectively 440mm apart from the distance of foundry goods center line (5), perpendicular muscle B, E is respectively 780mm apart from the distance of foundry goods center line (5), perpendicular muscle C, F is respectively 1090mm apart from the distance of foundry goods center line (5), article 4, horizontal bar is respectively horizontal bar G ~ J, horizontal bar G ~ J is respectively 130mm apart from the distance of locating surface (7), 0mm, 145mm and 335mm, locating surface (7) is the horizontal plane of lower surface (8) 500mm of distance foundry goods (6), horizontal, the thickness of perpendicular muscle is 15mm, it is characterized in that: the running gate system of this foundry goods (6) comprising:
A draining hole for bottom pouring (1), the center line of draining hole (1) is by the intersection point of foundry goods center line (5) with locating surface (7), the lower surface of draining hole (1) is 380mm ~ 400mm apart from the distance bottom foundry goods (6), the diameter of draining hole (1) is 120mm ~ 140mm, be highly 40mm ~ 60mm, pattern draft is 2 ° ~ 4 °;
Be positioned at the ground floor cross gate (2) of draining hole (1) top, its cross section is isosceles trapezoid, length is 2200mm ~ 2300mm, be highly 90mm ~ 100mm, pattern draft 3 ° ~ 7 °, draining hole (1) is connected with in the middle of ground floor cross gate (2);
Be positioned at 3 diffluence pass on ground floor cross gate (2), be respectively diffluence pass K ~ M, diffluence pass is cross section is circular cylinder, a diffluence pass K is connected with in the middle of ground floor cross gate (2), diffluence pass L, M are distributed in the both sides of ground floor cross gate (2), the distance of distance centre is 930mm ~ 980mm, the diameter of diffluence pass K is 100mm ~ 105mm, and the diameter of diffluence pass L, M is 110mm ~ 120mm, and the height of 3 diffluence pass is 50mm ~ 60mm;
Be positioned at the second layer cross gate on diffluence pass K ~ M, second layer cross gate is made up of sprue (3) and laterally vertical with sprue (3) and through (3) 9 runners, is respectively runner N, O, P, Q, R, S, T, U, V, sprue (3) cross section is isosceles trapezoid, and the width of sprue (3) is 180mm, and length is 3100mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °, and runner R is positioned on foundry goods center line (5), runner N, O, P, Q and runner V, U, T, S is distributed in center line (5) both sides and symmetrical, runner N, O, P, Q and runner V, U, T, S also along sprue (3) symmetrical cloth, runner N, O, P, Q is respectively 440mm apart from the distance of center line (5), 780mm, 1090mm and 1500mm, runner N, the length of V is 1500mm ~ 1550mm, runner O, P, Q, R, S, T, U length is 1010mm ~ 1050mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °,
Second layer cross gate is provided with 52 ingates (9), ingate (9) is positioned at the runner N of second layer cross gate, O, P, Q, R, S, T, U, on V, each distribution 5 ingates (9) on N and V runner, O, P, Q, R, S, T, each distribution 6 ingates (9) on U runner, ingate (9) is connected with foundry goods (6), connect and be positioned at horizontal bar G ~ J, on upper surface (4) and lower surface (8) position, the sectional dimension of ingate and foundry goods (6) intersection is 80mm × 25mm, pattern draft is 3 ° ~ 7 °.
The advantage of technical solution of the present invention is: it is steady that this running gate system can realize high-speed railway passenger aluminium alloy sleeper beam Filling Processes of Castings, and foundry goods heat distribution balances, and the effective thick large part of feeding foundry goods of energy, therefore Internal Quality of Cast is better.Adopt pouring technology of the present invention, foundry goods detects through X-ray, and qualification rate is higher.
Claims (1)
1. the running gate system for aluminium alloy sleeper beam foundry goods, described aluminium alloy sleeper beam foundry goods refers to bullet train aluminium alloy sleeper beam foundry goods (6), hereinafter referred to as foundry goods (6), the appearance and size of this foundry goods (6) is 3100mm × 1300mm × 260mm, average wall thickness is 15mm ~ 25mm, thickness, two ends size is more than 90mm, 6 perpendicular muscle and 4 vertical with it horizontal bars are had in inner chamber, article 6, perpendicular muscle is respectively perpendicular muscle A ~ F, article 6, longitudinally foundry goods center line (5) is left for perpendicular muscle, right symmetry, perpendicular muscle A, D is respectively 440mm apart from the distance of foundry goods center line (5), perpendicular muscle B, E is respectively 780mm apart from the distance of foundry goods center line (5), perpendicular muscle C, F is respectively 1090mm apart from the distance of foundry goods center line (5), article 4, horizontal bar is respectively horizontal bar G ~ J, horizontal bar G ~ J is respectively 130mm apart from the distance of locating surface (7), 0mm, 145mm and 335mm, locating surface (7) is the horizontal plane of lower surface (8) 500mm of distance foundry goods (6), horizontal, the thickness of perpendicular muscle is 15mm, it is characterized in that: the running gate system of this foundry goods (6) comprising:
A draining hole for bottom pouring (1), the center line of draining hole (1) is by the intersection point of foundry goods center line (5) with locating surface (7), the lower surface of draining hole (1) is 380mm ~ 400mm apart from the distance bottom foundry goods (6), the diameter of draining hole (1) is 120mm ~ 140mm, be highly 40mm ~ 60mm, pattern draft is 2 ° ~ 4 °;
Be positioned at the ground floor cross gate (2) of draining hole (1) top, its cross section is isosceles trapezoid, length is 2200mm ~ 2300mm, be highly 90mm ~ 100mm, pattern draft 3 ° ~ 7 °, draining hole (1) is connected with in the middle of ground floor cross gate (2);
Be positioned at 3 diffluence pass on ground floor cross gate (2), be respectively diffluence pass K ~ M, diffluence pass is cross section is circular cylinder, a diffluence pass K is connected with in the middle of ground floor cross gate (2), diffluence pass L, M are distributed in the both sides of ground floor cross gate (2), the distance of distance centre is 930mm ~ 980mm, the diameter of diffluence pass K is 100mm ~ 105mm, and the diameter of diffluence pass L, M is 110mm ~ 120mm, and the height of 3 diffluence pass is 50mm ~ 60mm;
Be positioned at the second layer cross gate on diffluence pass K ~ M, second layer cross gate is made up of sprue (3) and laterally vertical with sprue (3) and through sprue (3) 9 runners, is respectively runner N, O, P, Q, R, S, T, U, V, sprue (3) cross section is isosceles trapezoid, and the width of sprue (3) is 180mm, and length is 3100mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °, and runner R is positioned on foundry goods center line (5), runner N, O, P, Q and runner V, U, T, S is distributed in center line (5) both sides and symmetrical, runner N, O, P, Q and runner V, U, T, S also along sprue (3) symmetrical cloth, runner N, O, P, Q is respectively 440mm apart from the distance of center line (5), 780mm, 1090mm and 1500mm, runner N, the length of V is 1500mm ~ 1550mm, runner O, P, Q, R, S, T, U length is 1010mm ~ 1050mm, is highly 100mm, and pattern draft is 3 ° ~ 7 °,
Second layer cross gate is provided with 52 ingates (9), ingate (9) is positioned at the runner N of second layer cross gate, O, P, Q, R, S, T, U, on V, each distribution 5 ingates (9) on N and V runner, O, P, Q, R, S, T, each distribution 6 ingates (9) on U runner, ingate (9) is connected with foundry goods (6), connect and be positioned at horizontal bar G ~ J, on upper surface (4) and lower surface (8) position, the sectional dimension of ingate and foundry goods (6) intersection is 80mm × 25mm, pattern draft is 3 ° ~ 7 °.
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| CN104259396A (en) * | 2014-07-10 | 2015-01-07 | 陕西国德电气制造有限公司 | Manufacturing method for corbel |
| CN104858371B (en) * | 2015-04-20 | 2017-03-15 | 新泰（辽宁）精密设备有限公司 | Standard motor train unit bogie aluminium alloy sleeper beam casting system and casting method |
| CN109396359A (en) * | 2017-12-29 | 2019-03-01 | 湖北航特装备制造股份有限公司 | A kind of hollow thin-wall aluminum alloy control arm metal mold gravity casting technique |
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| US4218206A (en) * | 1978-10-02 | 1980-08-19 | Mullins Wayne L | Mold box apparatus |
| US5752564A (en) * | 1997-01-08 | 1998-05-19 | Amsted Industries Incorporated | Railway truck castings and method and cores for making castings |
| CA2358077C (en) * | 1997-01-08 | 2004-09-21 | Amsted Industries Incorporated | Railway truck castings and method and cores for making castings |
| CN100462162C (en) * | 2007-04-19 | 2009-02-18 | 南车眉山车辆有限公司 | Process of making integral swing bolster-side frame core of freight wagon |
| CN102554134A (en) * | 2012-03-01 | 2012-07-11 | 南车长江车辆有限公司 | Rail wagon side frame sand core and manufacturing method thereof |
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