CN104190870A - Pipe fitting for constructing pouring gate for casting - Google Patents
Pipe fitting for constructing pouring gate for casting Download PDFInfo
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- CN104190870A CN104190870A CN201410482648.7A CN201410482648A CN104190870A CN 104190870 A CN104190870 A CN 104190870A CN 201410482648 A CN201410482648 A CN 201410482648A CN 104190870 A CN104190870 A CN 104190870A
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- pipe fitting
- casting
- pipe
- sand
- running channel
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Abstract
The invention relates to a pipe fitting for a casting pouring gate with a new structure. The pipe fitting is composed of two semi-pipes. When the pipe fitting is used, the two semi-pipes are spliced together to form a straight pipe, a bent pipe, a tee joint, a filter section, or a flow gate. The pipe fitting disclosed by the invention has the advantages that the manufacturing is easy and the mounting is convenient.
Description
Technical field
The present invention relates to founding materials field, more specifically relate to structure and the preparation method of running channel parts for casting.
Background technology
Running channel parts comprise the parts such as straight tube, bend pipe, threeway, filtration joint, ingate, in use according to the project organization of casting moulding system, running channel component combination are become to running gate system runner, are embedded in sandbox.During cast, for guiding molten metal bath to flow into casting mould.
At present, running channel parts product is generally ceramic.For example, announce a kind of preparation method of casting with running channel parts in CN102303094A, wherein, straight tube manufacturing process, for utilizing mark post machine to extrude straight tube-like green compact, is dried rear sintering; By-passing parts manufacturing process is for utilizing mark post machine to extrude after tubulose green compact, and manual bonding is threeway or many reduction of fractions to a common denominators stream unit, dry rear sintering; Bend pipe manufacturing process is at a swan neck system of mark post machine outlet installation, directly to extrude syphon shape green compact, dry rear sintering.CN1785888A announces a kind of high aluminium pouring pipe for casting steel, and this gate spool is ceramic, and technical process is: batching, mixing, moulding, dry, sintering.
There is inconvenience in existing running channel parts, from the foregoing, in the running channel parts of various shape, prepare the easiest is straight tube on manufacturing, by mark post machine, extrude be dried afterwards, sintering is just passable.And for form parts, such as three-way pipe, filtration joint, bend pipe etc., its moulding is difficulty comparatively, need to first make straight tube, then by straight tube, is processed into various shapes.For example, in order to prepare three-way pipe, on straight tube, punch, tapping is bonding, another straight-run of pipe, then passes through sinter molding.This production method waste material that makes undoubtedly to take a lot of work.In addition, due to needs sintering, its energy consumption is also higher.
Summary of the invention
The object of the invention is to propose a kind of casting running channel pipe fitting of new construction, to solve, existing manufacturing process of pipe fitting is complicated, the problem of time-consuming expense material.
Of the present inventionly for building casting, by the feature of the pipe fitting of running channel, be, pipe fitting consists of two semicanals.
Pipe fitting of the present invention can be straight tube, bend pipe, threeway, filtration joint and ingate etc.
In a kind of specific embodiment, the composition surface of two described semicanals is smooth plane.
In the another kind of specific embodiment, the junction surface of two described semicanals has embedded structure.
Further, described embedded structure comprises and is located at a chute on composition surface and is located at the projection on another composition surface.
In the another kind of specific embodiment, described embedded structure is concave-convex fit structure.
Further, the end face at pipe fitting two ends also has concave-convex fit structure.
According to of the present invention, for building casting, with the pipe fitting of running channel, there is manufacture of being easy to, easy for installation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of pipe fitting according to an embodiment of the invention;
Fig. 2 is the schematic diagram of tee pipe fitting in accordance with another embodiment of the present invention;
Fig. 3 is the schematic diagram of bend pipe pipe fitting in accordance with another embodiment of the present invention;
Fig. 4 is the schematic diagram of ingate pipe fitting in accordance with another embodiment of the present invention.
The specific embodiment
As shown in Figures 1 to 4, pipe fitting of the present invention all has two semicanals to form.Here semicanal can be strict semicircle semicanal, can also be the asymmetric semicanal being partitioned into, and the section of a semicanal is the arcwall face that is less than semicircle, and another is the arcwall face that is greater than semicircle.Semicanal in the present invention also comprises the shape that other are more complicated, threeway semicanal for example, ingate semicanal as shown in Figure 4 etc.
Compare with traditional monoblock type pipe fitting, semi-canal type structure of the present invention has very large advantage, and it is easier to by sand casting process one-shot forming, has saved the loaded down with trivial details operation that is processed into shape tube by straight tube.Owing to having saved high temperature sintering, energy consumption reduces greatly.Several respects combination, cost that can remarkable low running channel parts, for foundry enterprise alleviates cost pressure.
Aspect detail, the interface of semicanal can be plane, as shown in Figures 2 and 3.During use, semicanal is combined, with adhesive tape, fixes, form running channel, be then embedded in sand mold.As optimal way, semicanal interface is taked embedded structure, example concaveconvex structure as shown in Figure 1.This structure can realize certain positioning action, makes the semicanal after docking be difficult for staggering, and improves sealing effectiveness.This embedded structure can also be realized by the chute and the bulge-structure that are located on interface.That is, on an interface, T-shaped groove is set, T-shaped projection is set on corresponding interface, during installation, by push-and-pull, T-shaped projection is slipped in T-shaped groove.The locating effect of this structure is better.Those skilled in the art can also be with the achieve a butt joint cooperation of face of other modes, with the object that reaches moving-limiting and be convenient to install.
In addition, the end face at semicanal two ends also can be arranged to planar structure or concaveconvex structure.
According to product of the present invention, can produce by sand casting process.This unlike the prior art.In the prior art, casting adopts sinter molding substantially with running channel parts, reason is that the running channel parts that Sand Moulding Process is made exist the defect that intensity is not high, is embodied in and in casting process, is subject to the brute force impact of molten metal to there will be drop phenomenon, finally reduces the quality of foundry goods.In the present invention, adopt and carry out casting compared with the roughing sand of small particle diameter, because roughing sand particle diameter is less, the pouring channel tube of being made by it has stronger anti-impact grittiness energy.Of the present inventionly compared with small particle diameter, refer to 70/140 order, that is, in roughing sand, maximum particle diameter is no more than 70 orders, and minimum grain size is not less than 140 orders.In prior art, the particle diameter of roughing sand is all being greater than this particle diameter, and minimum grain size is not less than 100 orders conventionally.
In other aspects of the present invention, operable roughing sand is one or several in quartz sand, Mo Laisha, emergy, magnesia, chromite sand, forsterite sand and mound sand.Binding agent can adopt hot box binding agent or cold-box binder, preferably hot box binding agent.Conventionally roughing sand accounts for 95-99.5 weight portions, and binding agent accounts for 0.5-5 parts.
In a kind of specific embodiment, after roughing sand, binding agent are mixed, adopt and penetrate sand moulding, being heating and curing or passing into gas catalyst curing and demolding obtains according to running channel parts of the present invention.
In the another kind of specific embodiment, by the precoated sand of above-mentioned particle diameter, with penetrating sand moulding, after being heating and curing, the demoulding obtains running channel parts.
Embodiment 1
By 70/140 order quartz sand, drying in oven 1 hour, 140 ℃ of oven temperatures, were then cooled to 20～30 ℃; Adopt intermittent high-speed puddle mixer, 98% quartz sand, 2% cold box resin are added to puddle mixer, mix 160s, shake out; Sand machine shooting pressure 0.3MPa, shooting time 3s are penetrated in adjusting; After penetrating sand, be blown into triethylamine, blow amine pressure 0.2MPa, blow amine time 10s; After blowing amine and finishing, be blown into clean air, make amine gas leave core box by core and enter amine treatment apparatus.Clean air pressure 0.5MPa, scavenging period 50s; Finally demould.
According to above-mentioned technique, make the sprue pipe of D50*200mm, combine the test of casting after bonding, 1580 ℃ of cast temperatures, material is ordinary carbon steel, and poured weights is 1.6 tons, and be 32 seconds the duration of pouring.Casting result prove, running channel parts have good flushing resistance, and casting after collapsibility good, easy to clean.
Embodiment 2
Adopt 70/140 order precoated sand, equipment is coated sand shooting machine.
200 ℃ of heating-up temperatures, hardening time 150s, shooting pressure 0.3MPa, shooting time 5s, investing time 50s.
According to above-mentioned technique, make the sprue pipe of D60*200mm, combine the test of cast after bonding, 1350 ℃ of cast temperatures, material is gray iron, and the weight of casting is 2.0 tons, and be 45 seconds the duration of pouring.The cast scab situation of rear inspection foundry goods, found that foundry goods does not almost have after scab and casting the collapsibility of pouring channel tube good, easy to clean.
Comparative example
Adopt 40/100 order precoated sand, equipment is coated sand shooting machine.
200 ℃ of heating-up temperatures, hardening time 150s, shooting pressure 0.3MPa, shooting time 5s, investing time 50s.
According to above-mentioned technique, make the sprue pipe of D60*200mm, combine the test of cast after bonding, 1350 ℃ of cast temperatures, material is gray iron, and the weight of casting is 2.0 tons, and be 45 seconds the duration of pouring.The cast scab situation of rear inspection foundry goods, found that cast(ing) surface has scab phenomenon, and after casting, the collapsibility of pouring channel tube is good, easy to clean.
Claims (8)
1. for building a pipe fitting for running channel for casting, it is characterized in that, described pipe fitting consists of two semicanals.
2. pipe fitting claimed in claim 1, comprises straight tube, bend pipe, threeway, filtration joint, ingate.
3. pipe fitting claimed in claim 1, wherein, the composition surface of two described semicanals is smooth plane.
4. pipe fitting claimed in claim 1, wherein, the junction surface of two described semicanals has embedded structure.
5. pipe fitting claimed in claim 1, wherein, described embedded structure comprises: be located at a chute on composition surface and be located at the projection on another composition surface.
6. pipe fitting claimed in claim 1, wherein, described embedded structure is concave-convex fit structure.
7. pipe fitting claimed in claim 1, the end face at its two ends has concave-convex fit structure.
8. pipe fitting claimed in claim 1, it is sand mold pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482648.7A CN104190870A (en) | 2014-09-19 | 2014-09-19 | Pipe fitting for constructing pouring gate for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482648.7A CN104190870A (en) | 2014-09-19 | 2014-09-19 | Pipe fitting for constructing pouring gate for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104190870A true CN104190870A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410482648.7A Pending CN104190870A (en) | 2014-09-19 | 2014-09-19 | Pipe fitting for constructing pouring gate for casting |
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| CN (1) | CN104190870A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798234A (en) * | 2016-04-12 | 2016-07-27 | 长兴睿鸿耐火材料有限公司 | Sprue ceramic tube |
| CN106513581A (en) * | 2016-08-30 | 2017-03-22 | 江苏共昌轧辊股份有限公司 | Adjustable-height sprue pipe device |
| CN107774912A (en) * | 2016-08-24 | 2018-03-09 | 郎旗 | A kind of paper runner channel pipe with fin side and preparation method thereof |
| CN108817323A (en) * | 2018-08-13 | 2018-11-16 | 辽宁福鞍重工股份有限公司特种精铸分公司 | A kind of casting pouring filter and casting pouring method |
| CN112570656A (en) * | 2020-12-10 | 2021-03-30 | 含山县朝霞铸造有限公司 | Pouring channel for thin-wall opening-shaped small steel casting |
| CN114918363A (en) * | 2022-05-31 | 2022-08-19 | 中国第一汽车股份有限公司 | Thin-wall sand core for automobile cylinder body and preparation method |
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| CN2124090U (en) * | 1992-07-14 | 1992-12-09 | 孔繁军 | Split mould for sewage pipe fitting |
| WO2006106209A1 (en) * | 2005-04-04 | 2006-10-12 | Sidel Participations | Height-adjustable moulding device for moulding thermoplastic recipients of various heights |
| CN102407322A (en) * | 2011-12-01 | 2012-04-11 | 昆明理工大学 | Casting system used for founding zinc and zinc alloy |
| CN202741723U (en) * | 2012-07-31 | 2013-02-20 | 山东富海实业股份有限公司 | Flow guide pipe for casting of aluminum and aluminum alloy |
| CN203018703U (en) * | 2012-12-14 | 2013-06-26 | 宁波香豪莱宝金属工业有限公司 | Improved structure of zinc alloy casting devices |
| CN204449208U (en) * | 2014-09-19 | 2015-07-08 | 济南圣泉倍进陶瓷过滤器有限公司 | For building the pipe fitting of casting running channel |
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2014
- 2014-09-19 CN CN201410482648.7A patent/CN104190870A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124090U (en) * | 1992-07-14 | 1992-12-09 | 孔繁军 | Split mould for sewage pipe fitting |
| WO2006106209A1 (en) * | 2005-04-04 | 2006-10-12 | Sidel Participations | Height-adjustable moulding device for moulding thermoplastic recipients of various heights |
| CN102407322A (en) * | 2011-12-01 | 2012-04-11 | 昆明理工大学 | Casting system used for founding zinc and zinc alloy |
| CN202741723U (en) * | 2012-07-31 | 2013-02-20 | 山东富海实业股份有限公司 | Flow guide pipe for casting of aluminum and aluminum alloy |
| CN203018703U (en) * | 2012-12-14 | 2013-06-26 | 宁波香豪莱宝金属工业有限公司 | Improved structure of zinc alloy casting devices |
| CN204449208U (en) * | 2014-09-19 | 2015-07-08 | 济南圣泉倍进陶瓷过滤器有限公司 | For building the pipe fitting of casting running channel |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798234A (en) * | 2016-04-12 | 2016-07-27 | 长兴睿鸿耐火材料有限公司 | Sprue ceramic tube |
| CN107774912A (en) * | 2016-08-24 | 2018-03-09 | 郎旗 | A kind of paper runner channel pipe with fin side and preparation method thereof |
| CN106513581A (en) * | 2016-08-30 | 2017-03-22 | 江苏共昌轧辊股份有限公司 | Adjustable-height sprue pipe device |
| CN108817323A (en) * | 2018-08-13 | 2018-11-16 | 辽宁福鞍重工股份有限公司特种精铸分公司 | A kind of casting pouring filter and casting pouring method |
| CN112570656A (en) * | 2020-12-10 | 2021-03-30 | 含山县朝霞铸造有限公司 | Pouring channel for thin-wall opening-shaped small steel casting |
| CN112570656B (en) * | 2020-12-10 | 2023-12-15 | 含山县朝霞铸造有限公司 | Pouring channel for thin-wall open-ended small steel casting |
| CN114918363A (en) * | 2022-05-31 | 2022-08-19 | 中国第一汽车股份有限公司 | Thin-wall sand core for automobile cylinder body and preparation method |
| CN114918363B (en) * | 2022-05-31 | 2024-03-15 | 中国第一汽车股份有限公司 | Thin-wall sand core for automobile cylinder body and preparation method |
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Application publication date: 20141210 |
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