CN101428340A - Multi-rod junction valve type space net shell node casting technique - Google Patents
Multi-rod junction valve type space net shell node casting technique Download PDFInfo
- Publication number
- CN101428340A CN101428340A CNA2008102431317A CN200810243131A CN101428340A CN 101428340 A CN101428340 A CN 101428340A CN A2008102431317 A CNA2008102431317 A CN A2008102431317A CN 200810243131 A CN200810243131 A CN 200810243131A CN 101428340 A CN101428340 A CN 101428340A
- Authority
- CN
- China
- Prior art keywords
- node
- mold
- shell
- module
- size
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a casting process for a multi-rod concurrent petal-type space shell node, which includes the following steps: each concurrent petal-type space shell node is resolved into tectonic units with identical petal number; the size of the molding die of each tectonic unit is calculated according to the casting shrinkage ratio, and the standard module made of polystyrene foaming material is customized upon the size; the standard module made of polystyrene foaming material is rapidly cut through series-parallel numerical control robot with 5 degrees of freedom, the fashioned tectonic units are processed; the mold is assembled in the way that the tectonic units processed are spliced and assembled, the integral node mold is combined, and a casting mouth is cemented; compound coating material and sand are covered on the surface of the node mold of the cemented casting mouth and heated in the stove after drying, to burn away the node mold; meanwhile, the mold shell is sintered into a mold, then metal liquid is injected into the molding shell sintered so that the mold shell is filled with metal liquid; and the metal liquid is solidified to form a steel casting node caster. The casting process has the advantages of low cost, simple molding fabrication, convenient transportation and strong adaptability.
Description
(1) technical field
The present invention relates to a kind of casting technique of net shell node.
(2) background technology
Because advantages such as the modern design of steel building is attractive in appearance, in light weight, large span, anti-seismic performance is good, dimensional accuracy is high, the construction period is short, steel building has been widely used in fields such as heavy construction, infrastructure, high tower, as: landmark buildings such as stadiums, conference and exhibition center, skyscraper.Node is an important structure member in the steel frame construction, rod member, transmission rod member internal force in the middle of it plays a part to connect.Therefore the processing of node all has direct influence to stress performance, project progress, the construction costs of whole rack.At present, the node of steel construction generally adopts steel plate or steel pipe assembly welding to form.Adopt the node of this method manufacturing to have that the work on the spot amount is big, stock utilization is low, Welding Structure is complicated, connect precision is difficult to shortcomings such as control.Now, large-scale complicated steel building was more and more used cast steel node.Cast steel node generally adopts wax-pattern disappearance casting technique.Though this kind method has overcome the shortcoming of welding node, that wax-pattern cost height, mold are made is loaded down with trivial details, transportation is inconvenient, a little less than the adaptability.
(3) summary of the invention
Purpose of the present invention is exactly in order to overcome above-mentioned the deficiencies in the prior art, and at the complexity of multi-rod converging space valve type net shell node, propose that a kind of cost is low, mold is made simple, convenient transportation, adaptable multi-rod converging valve type space net shell node casting technique.
The object of the present invention is achieved like this: a kind of multi-rod converging valve type space net shell node casting technique is characterized in that described casting technique comprises the steps:
(1) decomposes node: each converging valve type space net shell node is decomposed into the structural unit that is equal to the lobe number;
(2) size design: calculate the size that each structural unit waters mold according to shrinkage coefficient, by this size customization polystyrol foam material standard module, as rectangular build foamed plastic mould;
(3) processing mold: with 5DOF series-parallel connection numerical control robot above-mentioned polystyrol foam material standard module is carried out fly-cutting, process the structural unit module of moulding;
(4) assembling mold: the above-mentioned structural unit module that processes is carried out bonding assembly unit, be combined into complete node mold, and the good sprue gate of cementation;
(5) cast: node mould surface coating composite coating and sand at the good sprue gate of above-mentioned cementation, through in stove, heating after the super-dry, burn the node mold, make the shell sinter molding simultaneously, in the shell of sinter molding, inject molten metal then, make molten metal be full of shell;
(6) moulding: molten metal solidifies at a certain temperature, forms the cast steel node foundry goods.
Method of the present invention not only possesses the advantage when adopting lost wax casting technology in processing casting multi-rod crossing valve type net shell node, also has low cost of manufacture, manufacturing process is simple, advantage of high production efficiency, especially adopt node to split combination, the digitlization method for processing makes that this invention can be applied to the different net shell node of geometry is processed in the casting very flexibly.
(5) concrete embodiment
Casting technique of the present invention comprises the steps:
(1) decomposes node: each converging valve type space net shell node is decomposed into the structural unit that is equal to the lobe number;
(2) size design: calculate the size that each structural unit waters mold according to shrinkage coefficient, by this size customization polystyrol foam material standard module, as rectangular build foamed plastic mould;
(3) processing mold: with 5DOF series-parallel connection numerical control robot above-mentioned polystyrol foam material standard module is carried out fly-cutting, process the structural unit module of moulding;
(4) assembling mold: the above-mentioned structural unit module that processes is carried out bonding assembly unit, be combined into complete node mold, and the good sprue gate of cementation;
(5) cast: node mould surface coating composite coating and sand at the good sprue gate of above-mentioned cementation, through in stove, heating after the super-dry, burn the node mold, make the shell sinter molding simultaneously, in the shell of sinter molding, inject molten metal then, make molten metal be full of shell;
(6) moulding: molten metal solidifies, and forms the cast steel node foundry goods.
On the basis of the above, the present invention can have following various embodiment:
1, in the described decomposition node step, construct the virtual tangent plane that waits between each lobe earlier, it is similar that tangent planes such as utilization resolve into shape with node, the construction unit that number is identical with the lobe number;
2, in the described size design step, the standard module of polystyrol foam material is that the shape according to each lobe unit after the above-mentioned decomposition covers the normal volume piece that, the for example maximum cuboid that covers, standardized module helps the manufacturing of grand master pattern and follow-up processing and forming;
3, in the described processing mold step,, generate structural unit module, so not only machining accuracy height, and working (machining) efficiency height at the terminal resistance wire heating cutting module of installing of 5DOF series-parallel robot according to the characteristics of foamed polystyrene film tool;
4, in the described assembling mold step, polystyrene foam plate dissolubility bonding agent commonly used on the market is spread upon on the bonding plane of each structural unit module uniformly, moments later it is docked on the bonding plane of adjacent block, each module is finished bonding by numbering successively;
5, in the described cast step, the size and the quantity of reasonably arranging the sprue gate according to the shape and the volume of node mold; Carry out the surface applied composite coating of 5-10 layer respectively according to node mould size, the end is coated with one deck and hangs sand once and dry; To be placed in 950 ° the stove heating 5 minutes through above-mentioned node mould of finishing dealing with, burn foamed polystyrene film tool, make the shell sinter molding; In the shell of sinter molding, pour into a mould.
The implementing regulations of above-mentioned reference are illustrative to the description of invention, and do not constitute the qualification to it.
Claims (2)
1, a kind of multi-rod converging valve type space net shell node casting technique is characterized in that described casting technique comprises the steps:
(1) decomposes node: each converging valve type space net shell node is decomposed into the structural unit that is equal to the lobe number;
(2) size design: calculate the size that each structural unit waters mold according to shrinkage coefficient, by this size customization polystyrol foam material standard module;
(3) processing mold: with 5DOF series-parallel connection numerical control robot above-mentioned polystyrol foam material standard module is carried out fly-cutting, process the structural unit module of moulding;
(4) assembling mold: the above-mentioned structural unit module that processes is carried out bonding assembly unit, be combined into complete node mold, and the good sprue gate of cementation;
(5) cast: node mould surface coating composite coating and sand at the good sprue gate of above-mentioned cementation, through in stove, heating after the super-dry, burn the node mold, make the shell sinter molding simultaneously, in the shell of sinter molding, inject molten metal then, make molten metal be full of shell;
(6) moulding: molten metal solidifies, and forms the cast steel node foundry goods.
2, a kind of multi-rod converging valve type space net shell node casting technique according to claim 1 is characterized in that:
1), in the described decomposition node step, the virtual tangent plane that waits between each lobe of structure earlier, it is similar that tangent planes such as utilization resolve into shape with node, the construction unit that number is identical with the lobe number,
2), in the described size design step, the standard module of polystyrol foam material is that the shape according to each lobe unit after the above-mentioned decomposition covers the normal volume piece that,
3), in the described processing mold step, generate the structural unit module, at the terminal resistance wire heating cutting module of installing of 5DOF series-parallel robot
4), in the described assembling mold step, polystyrene foam plate dissolubility bonding agent is spread upon on the bonding plane of each structural unit module uniformly, moments later it is docked on the bonding plane of adjacent block, each module is finished bonding successively by numbering,
5), in the described cast step, the size and the quantity of reasonably arranging the sprue gate according to the shape and the volume of node mold; Carry out the surface applied composite coating of 5-10 layer respectively according to node mould size, the end is coated with one deck and hangs sand once and dry; To be placed in 950 ° ± 50 ° the stove heating 5 minutes ± 2 minutes through above-mentioned node mould of finishing dealing with, burn foamed polystyrene film tool, make the shell sinter molding; In the shell of sinter molding, pour into a mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102431317A CN101428340A (en) | 2008-12-01 | 2008-12-01 | Multi-rod junction valve type space net shell node casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102431317A CN101428340A (en) | 2008-12-01 | 2008-12-01 | Multi-rod junction valve type space net shell node casting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101428340A true CN101428340A (en) | 2009-05-13 |
Family
ID=40644097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102431317A Pending CN101428340A (en) | 2008-12-01 | 2008-12-01 | Multi-rod junction valve type space net shell node casting technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101428340A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325080A (en) * | 2014-10-30 | 2015-02-04 | 西安航空动力股份有限公司 | Shrinkage factor design method of precision casting die for multiple-guide vane groups |
| CN107243597A (en) * | 2017-06-06 | 2017-10-13 | 珠海市晶艺玻璃工程有限公司 | A kind of preparation method of building node wax base |
-
2008
- 2008-12-01 CN CNA2008102431317A patent/CN101428340A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325080A (en) * | 2014-10-30 | 2015-02-04 | 西安航空动力股份有限公司 | Shrinkage factor design method of precision casting die for multiple-guide vane groups |
| CN107243597A (en) * | 2017-06-06 | 2017-10-13 | 珠海市晶艺玻璃工程有限公司 | A kind of preparation method of building node wax base |
| CN107243597B (en) * | 2017-06-06 | 2018-06-26 | 珠海市晶艺玻璃工程有限公司 | A kind of preparation method of building node wax base |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101992272B (en) | Self-adaptive casting mould manufacture method for casting | |
| CN101862811A (en) | Rapid investment casting method of complex thin-wall component | |
| CN101885217A (en) | Die and method for integrally manufacturing solid core functional plate with polygonal gird honeycomb structure | |
| CN102266909B (en) | Clamping casting process of solenoid valves and electrohydraulic valve castings | |
| CN111558696B (en) | Forming method of ring-shaped steel casting | |
| CN101428340A (en) | Multi-rod junction valve type space net shell node casting technique | |
| CN108453218B (en) | Nut foam molding model, mold for manufacturing foam molding model and nut lost foam casting process | |
| CN112191803A (en) | Manufacturing method of large cylindrical steel ingot die casting | |
| CN102078917A (en) | Semi-modular forming manufacturing method and application template thereof | |
| JP2011240351A (en) | Evaporative pattern and method for manufacturing casting | |
| CN102019346B (en) | Making method of rapid forming wax pattern of diffuser | |
| CN103111584A (en) | Easily separated sand mold casting assembling die | |
| CN201313153Y (en) | Novel composite model of flange fitting | |
| CN112958746B (en) | Core set for casting hydraulic multi-way valve, manufacturing method thereof and casting method of multi-way valve | |
| CN201800176U (en) | Die for integrally forming solid functional board with polygonal grid/honeycomb structure | |
| CN113033037A (en) | Support joint of cable dome structure and processing method | |
| CN103949587A (en) | Preparation method of casting mold for reducing casting stress of large abrupt wall thickness type nickel-base superalloy casting obtained by anti-gravity casting | |
| CN108655337B (en) | Baffle ring foam plastic model and baffle ring lost foam casting process | |
| CN210316197U (en) | Building wall | |
| CN103084546A (en) | Casting method of valve cover casting | |
| CN202861326U (en) | Combined iron mould universally used to sand-coating casting production of iron mould | |
| CN104057024A (en) | Compound molding and manufacturing method of metal piece | |
| US20080105398A1 (en) | Article For Multiple Core Stacking And Method Thereof | |
| CN220161252U (en) | Modeling mold for machining speed reducer box | |
| JP2001334348A (en) | Method or manufacturing wax pattern for manufacturing hollow parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090513 |