CN101941054A - Combined production method of expandable pattern casting model and gating system - Google Patents
Combined production method of expandable pattern casting model and gating system Download PDFInfo
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- CN101941054A CN101941054A CN2009101026648A CN200910102664A CN101941054A CN 101941054 A CN101941054 A CN 101941054A CN 2009101026648 A CN2009101026648 A CN 2009101026648A CN 200910102664 A CN200910102664 A CN 200910102664A CN 101941054 A CN101941054 A CN 101941054A
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Abstract
The invention relates to a combined production method of an expandable pattern casting model and a gating system, the gating system comprises a pouring cup, a downsprue and an ingate, wherein the pouring cup, the downsprue and the ingate are sequentially connected and then assembled and connected with cast models, the ingate which is connected with the downsprue and the cast models is provided with a plurality of channels, and each channel is divided into an upper layer and a lower layer for connecting two cast models, thereby forming an assembled structure of using one pouring cup to be simultaneously connected with a plurality of pouring channels and two layers of the cast models. The combined production method can reduce the proportion occupied by materials of the gating system during the expandable pattern casting process, save the consumption of raw materials and auxiliary materials, improve the production efficiency and reduce the production cost.
Description
Technical field
The present invention relates to the method for assembling of a kind of dispellable mould casting model and running gate system.
Background technology
Lost foam casting process comprises modelling, moulding, cast, cooling, knockout, wherein model and running gate system are made the key factor that the frame mode of assembling is decision lost foam casting product quality quality and cost height, foundry goods shape difference, the assembling mode of model and running gate system is difference to some extent also, the running gate system that links to each other with model comprises: ingate, sprue, water cup etc., the part by weight that running gate system accounts in the whole cast member also is the key factor of control production cost and production efficiency, easy to operate for guaranteeing, model and running gate system adopt the assembling of individual layer single-piece more during the tradition lost foam casting, though such assembling mode makes the casting process of foundry goods easy to operate, but each cast can only form single products, simultaneously running gate system shared ratio in foundry goods is very big, be generally 30%～35%, that is to say, one ton of molten iron utilization rate only has 65%～70%, must reject defective work, cause casting production efficiency low, stock utilization is low, the cost height.
Summary of the invention
Purpose of the present invention is exactly in order to solve the problems of the technologies described above, and a kind of dispellable mould casting model and running gate system assemble method are provided, and to improve lost foam casting output and quality, reduces production costs.
Runner system in lost foam casting model of the present invention and the running gate system assemble method comprises and waters cup, sprue, ingate, the described continuous successively back of cup, sprue, ingate of watering is connected with the cast model assembling, be provided with a plurality of passages with the ingate that sprue is connected with cast model, each passage divides two cast models of two-layer connection up and down, forms one and waters and glass connect a plurality of cast passages, double-deck cast model structure simultaneously.
Described runner system water the hollow body that cup is one of the forming with sprue.
The present invention compares with existing single-piece individual layer composition model, can reduce running gate system material occupation proportion, saves former, supplementary product onsumption, enhances productivity, thereby reduces production costs.
Description of drawings
Fig. 1 is the model and the running gate system structural representation of traditional disappearance mould;
Model and running gate system structural representation when Fig. 2 is a lost foam casting of the present invention;
Fig. 3 is that the embodiment of the invention is watered cup and cross ingate syndeton schematic diagram;
Among the figure: 1-waters cup, 2-sprue, 3-ingate, 4-cast model, 5-sandbox, 6-quartz sand.
The specific embodiment
The present invention is described in detail below in conjunction with specific embodiment:
When the small-sized brake rim of cast, traditional model and running gate system structure for the assembling of individual layer single-piece connects, are poured into a mould each time and can only be formed the single-piece foundry goods as shown in Figure 1, and each foundry goods has formed the running gate system that need remove simultaneously, and production efficiency is low, and workload is big.
For enhancing productivity, the present invention adopts the ingate 3 that is connected with cast model 4 with sprue 2 in the running gate system cross multichannel running channel and directly waters excellent cross-under combination, each passage divides two cast models of two-layer connection up and down, be that same running gate system has connected eight cast models simultaneously, all adopt glue bonding between running gate system and the cast model.The effect of watering cup in the running gate system is to inject molten iron when being used to pour into a mould, and guarantees that molten iron is not excessive.The material and the shape of watering cup are a lot, the cup that waters that uses during lost foam casting mainly contains the water-glass sand composite material, clay material (runner brick material) etc., using method is in when vanning the model back-up sand back that finishes is fitted together with glue and running channel, shortcoming be in casting process easily and running channel separate, cause casting flaw and accident potential, and the production cost height.The junner bush that solution to the problems described above normally adds one diameter on sprue be ∮ 120～∮ 150, the junner bush material therefor is waterglass and quartz sand and CO
2Mixing manufacture forms, and plays and stablizes running channel and seal glass effect of following faying face of watering, and the interior quartz sand of case does not flow into foundry goods when guaranteeing cast.At junner bush after setting completed, also to bonded adhesives be expressed on the junner bush plane, will water cup then and bond together, enter next process and prepare cast with the glue rifle.The present invention is for reducing cost, handled easily, with foamed material directly with sprue with water cup and make one, making it become an end is that cup is watered in taper, an end is columniform whole hollow pipe, it is of a size of diameter of phi 100mm-Φ 40mm * height 85mm * thickness 8mm, and assembling is finished, after the oven dry of external coating coating, put sandbox 5 into and imbed in the quartz sand 6 and pour into a mould, once-cast can obtain eight brake rim foundry goods simultaneously.
In addition, also ingate can be made the multichannel running channel of tee T, " * " font as required, each passage is connected with double-deck cast model.
The present invention is mainly used in weight in 30kg, diameter below 350mm, cast model and running gate system assemble method when adopting lost foam casting.
Following table is to adopt quality and the cost effectiveness contrast of model of the present invention and running gate system assemble method and traditional assemble method casting brake rim:
Can find out that from table the advantage that adopts assembling mode of the present invention to carry out small-sized brake rim casting is: (1) is saved and watered cup: 8 products are as long as one is watered cup; (2) boost productivity: it is few to account for sand, and it is few to account for sandbox; (3) running channel proportion is little, saves cost. Can well utilize the drying room space when being assembled in brushing paint in addition like this, also can save to greatest extent quartz sand in casting process, the shared material proportion of running gate system is very low, greatly reduces production cost.
Claims (4)
1. lost foam casting model and running gate system method for assembling, described running gate system comprises waters cup (1), sprue (2), ingate (3), watering the continuous successively back of cup (1), sprue (2), ingate (3) is connected with cast model (4) assembling, it is characterized in that: the ingate (3) that is connected with cast model (4) with sprue (2) is provided with a plurality of passages, each passage divides two cast models of two-layer connection (4) up and down, forms one and waters the assemble method that cup connects a plurality of cast passages, double-deck cast model simultaneously.
2. lost foam casting model according to claim 1 and running gate system method for assembling is characterized in that: described ingate (3) is provided with 2-6 passage simultaneously.
3. lost foam casting model according to claim 2 and running gate system method for assembling, it is characterized in that: described ingate (3) is a cross, have 4 passages, each passage divides two cast models of two-layer connection up and down, and promptly cross running channel branch levels connects eight models simultaneously.
4. lost foam casting model according to claim 1 and running gate system method for assembling is characterized in that: described runner system water the hollow body that cup is one of the forming with sprue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101026648A CN101941054A (en) | 2009-07-09 | 2009-07-09 | Combined production method of expandable pattern casting model and gating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101026648A CN101941054A (en) | 2009-07-09 | 2009-07-09 | Combined production method of expandable pattern casting model and gating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101941054A true CN101941054A (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101026648A Pending CN101941054A (en) | 2009-07-09 | 2009-07-09 | Combined production method of expandable pattern casting model and gating system |
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| CN (1) | CN101941054A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772631A (en) * | 2016-04-20 | 2016-07-20 | 中铁宝桥集团有限公司 | Casting identification casting feeding device and casting feeding method thereof |
| CN110252949A (en) * | 2019-07-11 | 2019-09-20 | 蓬莱万寿机械有限公司 | A kind of lost-foam casting method |
| CN113333672A (en) * | 2021-04-30 | 2021-09-03 | 广东韶钢工程技术有限公司 | Casting device and casting process |
-
2009
- 2009-07-09 CN CN2009101026648A patent/CN101941054A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772631A (en) * | 2016-04-20 | 2016-07-20 | 中铁宝桥集团有限公司 | Casting identification casting feeding device and casting feeding method thereof |
| CN105772631B (en) * | 2016-04-20 | 2018-07-27 | 中铁宝桥集团有限公司 | Casting mark feeds a casting equipment and its feeds a casting method |
| CN110252949A (en) * | 2019-07-11 | 2019-09-20 | 蓬莱万寿机械有限公司 | A kind of lost-foam casting method |
| CN113333672A (en) * | 2021-04-30 | 2021-09-03 | 广东韶钢工程技术有限公司 | Casting device and casting process |
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Application publication date: 20110112 |