CN104384443B - The technique of template class containing pipe foundry goods is prepared by the mode burying stainless steel pipes in advance - Google Patents
The technique of template class containing pipe foundry goods is prepared by the mode burying stainless steel pipes in advance Download PDFInfo
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- CN104384443B CN104384443B CN201410625508.0A CN201410625508A CN104384443B CN 104384443 B CN104384443 B CN 104384443B CN 201410625508 A CN201410625508 A CN 201410625508A CN 104384443 B CN104384443 B CN 104384443B
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- water pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
Abstract
The mode that use buries stainless steel pipes in advance prepares the technique of template class containing pipe foundry goods, 1) produce wooden model according to drawing, produce water pipe ditch at wooden model inner chamber, 2) and select suitable sandbox according to wooden model, by water pipe ditch towards upper, nowel sand mold is made; 3), after nowel sand mold completes, choosing suitable special upper case, be fixed on after above nowel by upper case, the frock bar choosing suitable quantity is assembled in the rail groove on sandbox, 4) after fixing good frock bar, start to make case sand mold; 5) water pipe is bent; 6) ready-made sand mold is carried out branch mailbox; 7) frock bar and stainless steel tube being fixed, stainless steel tube surrounding can not directly contact with sand mold, and reserved space; 8) mould assembling, casting; 9) after casting solidification cools, taking out, be separated by upper case, foundry goods is transported to clearing zone. This technique ensure that being fastenedly connected between water pipe and sandbox, eliminate stainless steel tube because by thermogenetic stress deformation, namely ensure that the form and position tolerance of water pipe, it is to increase yield rate.
Description
Technical field
The present invention relates to casting technology field, it is specifically related to the sandbox equipment of a kind of stainless steel tube buried in advance at template strand sand mold internal fixtion, be specially adapted to the production of aluminium alloy electronic appliance mold class containing pipe template strand.
Background technology
The casting technique of existing electronic appliance mold class strand is green sand mold technique; Electronic appliance mold is roughly divided into casing class and template class, is characterized in that single casting, little, the external form profile of batch are big, external surface needs machining, inner chamber is not machined surface; In use, mould needs with recirculated water mold heated, so just require to be had water back in mould, the technique of existing placement water back has two kinds, one is after casting blank formation, at strand embedded SMA actuators water outlet tube seat, then water pipe is put into groove, then with low melting point alloy by flat for tube seat envelope; The shortcoming of this technique is: tube seat difficulty of processing is big, and water pipe is placed and limited by cavity shape, and time-consuming, effort, cost height, and the stainless steel tube dimension precision requirement height bent, otherwise not easily puts into the tube seat of processing. Another kind is before casting, is embedded in die cavity by water pipe, and the water pipe that this kind of technique is general used is copper tube, first on wooden model, produce water pipe ditch, then make sand mold, finally water pipe is fixed in the water pipe ditch on sand mold with U-shaped iron wire, just can mould assembling cast. Why this kind of technique adopts copper pipe to be that temperature distortion is little, is easy to fixing, but shortcoming is copper tube cost height, and the fusing point of red copper is low, and during cast, copper pipe there will be by the even through phenomenon broken of thermal softening, causes foundry goods to scrap because copper pipe is in casting; If employing stainless steel waterpipe, in casting cycle, the stress deformation after being heated is big especially, easily produces water pipe displacement or distortion, owing to casting technique is green sand mold technique, sand mold intensity difference, after water pipe is out of shape, sandbox can cause damage, even can produce crush, thus cause strand to be scrapped.
Summary of the invention
Technical problem to be solved by this invention is to provide one method simple, and the mode that the use that working efficiency is high buries stainless steel pipes in advance prepares the technique of template class containing pipe foundry goods.
Technical problem to be solved by this invention realizes by the following technical solutions:
The mode that use buries stainless steel pipes in advance prepares the technique of template class containing pipe foundry goods, comprises following method steps:
1) producing wooden model according to drawing, and produce water pipe ditch according to technical requirements and processing requirement at wooden model inner chamber, water pipe ditch cross section is of a size of 15*30mm;
2) select suitable sandbox according to wooden model, and by water pipe ditch towards upper, according to technique, nowel sand mold is made;
3) after nowel sand mold completes, choose suitable special upper case, upper case is fixed on after above nowel, the frock bar choosing suitable quantity is assembled in the rail groove on sandbox, and frock bar is put into the surface of water pipe ditch, the screw thread on frock bar is utilized to carry out high high adjustment, frock club head is fixed on the surface of water pipe ditch, until touching wooden model water pipe ditch, after frock bar position is selected, it is fixed on the rail groove of sandbox with retaining screw by the threaded hole on slide block, to reach the object of fixing tool;
4) after fixing good frock bar, start to make case sand mold, making processes notes the frock that destruction artistic conception is not fixed, can not be subjected to displacement;
5) bending water pipe, this technique adopts 304 stainless steel tubes, and diameter is 12mm, wall thickness is 1.5mm, and water pipe to be carried out destressing process, after water pipe bends, surface needs brushing special-purpose fire-resistant coating, and sends into baking oven and carry out drying and processing, then take out in atmosphere cooling after etc. to be installed;
6) ready-made sand mold is carried out branch mailbox, after branch mailbox, sand mold position defect occur is repaired; After completing the repairing of sand mold, carry out mopping drying and processing;
7) screw that diameter is 1 millimeter of tied silk will be installed with it will be screwed into the head of frock bar, the space of reserved 3��5 millimeters, it is well placed the steel pipe bent, and be fixed by the tied silk on screw, the stainless steel tube fixed must be unsettled, surrounding can not directly contact with sand mold, and reserved space, otherwise the stainless steel tube after casting well can expose cast(ing) surface;
8) mould assembling, casting, owing to there being the frock bar of some location and setting at water pipe place reasonable layout, and water pipe is also fixed on frock bar, it is fastenedly connected again between frock bar and sandbox so that the deformation stress of water pipe when being heated cannot make water pipe produce actual displacement, thus makes stainless steel waterpipe be fixed on the position of setting, also would not occur big distortion that sand mold is caved in, therefore ensure that the qualification rate of strand;
9) after casting solidification cools, need first to be back-outed from upper end by frock bar, distance of back-outing determines that frock bar is separated with retaining screw, owing to the screw of frock bar and fixing steel pipe adopts the screw thread of M8*1.25 simultaneously, so the effect of synchronous taking-up can be realized, being directly separated by upper case after taking out, foundry goods is transported to clearing zone, the frock being fixed on case is put neat after loosening, treat use next time.
Above-mentioned steps 5) in special-purpose fire-resistant coating be made up of group part of following weight part number: water-soluble epoxy resin 10 parts, aluminum oxide powder 20 parts, vermiculite power 5 parts, 4 parts, zirconium English powder, calcining potassium felspar sand 5 parts, Xylitol 2 parts, calcined kaolin 2 parts, ground barium sulfate 3 parts, graphene microchip 5 parts, deionized water 50 parts, six titanium whiskers 2 parts, crystalline flake graphite 2 parts, zirconium white 2 parts, boron nitride 2 parts, chromite powder 2 parts, boric acid aqueous solution 2 parts, asbestos powder 1 part, sepiolite powder 2 parts, slaked lime powder 2 parts,
The preparation method of above-mentioned heat radiation coating is: each component is sent into mixer and carries out mixing treatment, ball mill ball milling is dropped into again after mixed even, about 4 hours, again the material after ball milling is carried out low temperature modification process after test passes, at the uniform velocity stir under the environment of subzero about 15 DEG C, move after 2-3 hour to, under normal temperature environment, packing.
It is a further object to provide the special sandbox that a kind of above-mentioned technique uses, the upper case comprising nowel and coordinate with nowel, described upper case is fixed on above nowel, it is provided with wooden model in described upper case, wooden model inner chamber is provided with water pipe ditch, it is provided with stainless steel tube in described water pipe ditch, described upper upper box part is provided with rail groove, described wooden model is connected with frock bar, described frock bar is positioned at the surface of water pipe ditch, described frock club head is fixed on the surface of water pipe ditch, touch water pipe ditch, described rail groove is provided with slide block, the tailing flight of described frock bar is connected on slide block, the screw thread on frock bar is utilized to carry out high high adjustment, described slide block is provided with threaded hole, by threaded hole, slide block is fixed on the rail groove of sandbox with retaining screw, to reach the object of fixing tool, the head of described frock bar is installed with the retaining screw that diameter is 1 millimeter of tied silk, the space of reserved 3��5 millimeters between this retaining screw end and frock club head, after being well placed the stainless steel tube bent, it is fixed by the tied silk on retaining screw, the stainless steel tube fixed must be unsettled, surrounding can not directly contact with sand mold, and reserved space, otherwise the steel pipe after casting well can expose cast(ing) surface.
The invention has the beneficial effects as follows:
1. use this type of special sandbox to bury the layout of pipeline in advance, eliminate the operation that pipe is buried in later stage groove milling, save time and cost;
2. this type of special sandbox is adopted, it is possible to realizing the object that stainless steel tube replaces copper tube, the price of stainless steel waterpipe is about 1/3rd of copper tube price, greatly saves cost;
3. water pipe is changed after making stainless steel tube, owing to the rotproofness of stainless steel tube is higher than copper tube, substantially increase the mold use life-span;
4. the special sandbox adopted in this technique, ensure that being fastenedly connected between water pipe and sandbox, essentially eliminating stainless steel tube because by thermogenetic stress deformation, namely ensure that the form and position tolerance of water pipe, in turn ensure that sand mold can not cave in, it is to increase template class is containing the yield rate of pipe foundry goods;
5. after utilizing this sandbox, it is possible to a large amount of use stainless steel tube, as ventilating water pipe, relative to copper tube, it is possible to suitably improve the temperature of aluminium liquid cast, make aluminium liquid have better mobility, is beneficial to aluminium liquid and is full of die cavity.
Accompanying drawing explanation
Fig. 1 is wood model structure figure of the present invention;
Fig. 2 is sandbox structure iron of the present invention;
Fig. 3 is that structure iron installed by frock bar of the present invention.
Embodiment
In order to the present invention is realized technique means, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the present invention further.
Shown in Fig. 1-3:
The mode that use buries stainless steel pipes in advance prepares the technique of template class containing pipe foundry goods, comprises following method steps:
1) producing wooden model 10 according to drawing, and produce water pipe ditch 101 according to technical requirements and processing requirement at wooden model 10 inner chamber, water pipe ditch 101 cross section is of a size of 15*30mm;
2) select suitable sandbox according to wooden model 10, and by water pipe ditch 10 towards upper, according to technique, nowel 20 sand mold is made;
3) after nowel 20 sand mold completes, choose suitable special upper case 30, upper case 30 is fixed on after above nowel 20, the frock bar 40 choosing suitable quantity is assembled in the rail groove 301 of case 30, and frock bar 40 is put into the surface of water pipe ditch 101, the screw thread on frock bar 40 is utilized to carry out high high adjustment, frock bar 40 head is fixed on the surface of water pipe ditch 101, until touching wooden model 10 water pipe ditch 101, after frock bar 40 position is selected, it is fixed on the rail groove 301 of sandbox with retaining screw by the threaded hole on slide block 302, to reach the object of fixing tool,
4) after fixing good frock bar 40, start to make case 30 sand mold, making processes notes the frock that destruction artistic conception is not fixed, can not be subjected to displacement;
5) bending water pipe, this technique adopts 304 stainless steel tubes, and diameter is 12mm, wall thickness is 1.5mm, and water pipe to be carried out destressing process, after water pipe bends, surface needs brushing special-purpose fire-resistant coating, and sends into baking oven and carry out drying and processing, then take out in atmosphere cooling after etc. to be installed;
6) ready-made sand mold is carried out branch mailbox, after branch mailbox, sand mold position defect occur is repaired; After completing the repairing of sand mold, carry out mopping drying and processing;
7) screw 401 that diameter is 1 millimeter of tied silk will be installed with it will be screwed into the head of frock bar 40, the space of reserved 3��5 millimeters, it is well placed the stainless steel tube 50 bent, and be fixed by the tied silk on screw 401, the stainless steel tube 50 fixed must be unsettled, surrounding can not directly contact with sand mold, and reserved space, otherwise the stainless steel tube 50 after casting well can expose cast(ing) surface;
8) mould assembling, casting, owing to there being the frock bar 40 of some location and setting at water pipe place reasonable layout, and water pipe is also fixed on frock bar 40, it is fastenedly connected again between frock bar 40 and sandbox so that the deformation stress of water pipe when being heated cannot make water pipe produce actual displacement, thus makes stainless steel waterpipe be fixed on the position of setting, also would not occur big distortion that sand mold is caved in, therefore ensure that the qualification rate of strand;
9) after casting solidification cools, need first to be back-outed from upper end by frock bar 40, distance of back-outing determines that frock bar is separated with retaining screw, owing to the screw of frock bar 40 and fixing steel pipe adopts the screw thread of M8*1.25 simultaneously, so the effect of synchronous taking-up can be realized, being directly separated by upper case after taking out, foundry goods is transported to clearing zone, the frock being fixed on case is put neat after loosening, treat use next time.
Above-mentioned steps 5) in special-purpose fire-resistant coating be made up of group part of following weight part number: water-soluble epoxy resin 10 parts, aluminum oxide powder 20 parts, vermiculite power 5 parts, 4 parts, zirconium English powder, calcining potassium felspar sand 5 parts, Xylitol 2 parts, calcined kaolin 2 parts, ground barium sulfate 3 parts, graphene microchip 5 parts, deionized water 50 parts, six titanium whiskers 2 parts, crystalline flake graphite 2 parts, zirconium white 2 parts, boron nitride 2 parts, chromite powder 2 parts, boric acid aqueous solution 2 parts, asbestos powder 1 part, sepiolite powder 2 parts, slaked lime powder 2 parts,
The preparation method of above-mentioned heat radiation coating is: each component is sent into mixer and carries out mixing treatment, ball mill ball milling is dropped into again after mixed even, about 4 hours, again the material after ball milling is carried out low temperature modification process after test passes, at the uniform velocity stir under the environment of subzero about 15 DEG C, move after 2-3 hour to, under normal temperature environment, packing.
More than show and describe the ultimate principle of the present invention and the advantage of main characteristic sum the present invention. The technician of the industry should understand; the present invention is not restricted to the described embodiments; the principle that the present invention is just described described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention. The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. prepare the technique of template class containing pipe foundry goods by the mode burying stainless steel pipes in advance for one kind, it is characterised in that, comprise following method steps:
1) produce wooden model according to drawing, and produce water pipe ditch according to technical requirements and processing requirement at wooden model inner chamber;
2) select suitable sandbox according to wooden model, and by water pipe ditch towards upper, according to technique, nowel sand mold is made;
3) after nowel sand mold completes, choose suitable special upper case, upper case is fixed on after above nowel, the frock bar choosing suitable quantity is assembled in the rail groove on sandbox, and frock bar is put into the surface of water pipe ditch, frock club head is fixed on the surface of water pipe ditch, until touching wooden model water pipe ditch, after frock bar position is selected, it is fixed on the rail groove of sandbox with retaining screw by the threaded hole on slide block;
4) after fixing good frock bar, start to make case sand mold, making processes notes the frock that destruction artistic conception is not fixed, can not be subjected to displacement;
5) bending water pipe, this technique adopts 304 stainless steel tubes, and diameter is 12mm, wall thickness is 1.5mm, and water pipe to be carried out destressing process, after water pipe bends, surface needs brushing special-purpose fire-resistant coating, and sends into baking oven and carry out drying and processing, then take out in atmosphere cooling after etc. to be installed;
Above-mentioned steps 5) in special-purpose fire-resistant coating be made up of group part of following weight part number: water-soluble epoxy resin 10 parts, aluminum oxide powder 20 parts, vermiculite power 5 parts, 4 parts, zirconium English powder, calcining potassium felspar sand 5 parts, Xylitol 2 parts, calcined kaolin 2 parts, ground barium sulfate 3 parts, graphene microchip 5 parts, deionized water 50 parts, six titanium whiskers 2 parts, crystalline flake graphite 2 parts, zirconium white 2 parts, boron nitride 2 parts, chromite powder 2 parts, boric acid aqueous solution 2 parts, asbestos powder 1 part, sepiolite powder 2 parts, slaked lime powder 2 parts,
The preparation method of above-mentioned special-purpose fire-resistant coating is: each component is sent into mixer and carries out mixing treatment, ball mill ball milling is dropped into again after mixed even, about 4 hours, again the material after ball milling is carried out low temperature modification process after test passes, at the uniform velocity stir under the environment of subzero 15 DEG C, move after 2-3 hour to, under normal temperature environment, packing;
6) ready-made sand mold is carried out branch mailbox, after branch mailbox, sand mold position defect occur is repaired; After completing the repairing of sand mold, carry out mopping drying and processing;
7) screw that diameter is 1 millimeter of tied silk will be installed with it will be screwed into the head of frock bar, the space of reserved 3��5 millimeters, it is well placed the steel pipe bent, and be fixed by the tied silk on screw, the stainless steel tube fixed must be unsettled, surrounding can not directly contact with sand mold, and reserved space, otherwise the stainless steel tube after casting well can expose cast(ing) surface;
8) mould assembling, casting;
9) after casting solidification cools, needing first to be back-outed from upper end by frock bar, distance of back-outing determines that frock bar is separated with retaining screw, directly upper case is separated after taking out, foundry goods is transported to clearing zone, and the frock being fixed on case is put neat after loosening, and treats use next time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410625508.0A CN104384443B (en) | 2014-11-07 | 2014-11-07 | The technique of template class containing pipe foundry goods is prepared by the mode burying stainless steel pipes in advance |
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| CN201410625508.0A CN104384443B (en) | 2014-11-07 | 2014-11-07 | The technique of template class containing pipe foundry goods is prepared by the mode burying stainless steel pipes in advance |
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| CN105057640B (en) * | 2015-07-24 | 2017-04-05 | 鞍钢重型机械有限责任公司 | A kind of method and casting pattern for ensureing cooling wall protecting jacket for water pipe pipe positional precision |
| CN106735093A (en) * | 2017-01-24 | 2017-05-31 | 烟台鲁宝有色合金有限公司 | Fine copper buries heterogeneous metal pipe cooling wall metallurgical binding casting technique |
| CN106955967A (en) * | 2017-04-25 | 2017-07-18 | 安徽索立德铸业有限公司 | A kind of Ultra-low carbon casting resin sand casting masking paste |
| CN109648063B (en) * | 2017-10-12 | 2021-04-06 | 烟台吉森新材料科技有限公司 | Fixing structure and method for water cooling pipe in buried pipe casting |
| CN107824770A (en) * | 2017-11-02 | 2018-03-23 | 苏州岚山机械科技有限公司 | A kind of method of mould heating |
| CN108655371A (en) * | 2018-06-07 | 2018-10-16 | 南京联塑科技实业有限公司 | A kind of forming module of HDPE double-wall corrugated pipes and its molding method |
| CN110125331A (en) * | 2019-05-17 | 2019-08-16 | 合肥江淮铸造有限责任公司 | A kind of shape casting technique of casting complicated inner cavity |
| CN111940677A (en) * | 2020-07-23 | 2020-11-17 | 中国第一汽车股份有限公司 | Casting method of pre-embedded die of stainless steel water-cooling pipe |
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| JPH03189061A (en) * | 1989-12-15 | 1991-08-19 | Sekisui Chem Co Ltd | Manufacture of casting metallic mold having cooling circuit |
| CN102764858A (en) * | 2012-07-24 | 2012-11-07 | 滁州金诺实业有限公司 | Fastening device for pre-buried pipelines |
| CN102764855A (en) * | 2012-07-24 | 2012-11-07 | 滁州金诺实业有限公司 | Technique for embedding stainless steel tube in large-size aluminum alloy casting blank |
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Effective date of registration: 20210305 Address after: 239000, No. 401, East Xin'anjiang Road, Chuzhou City, Anhui Province Patentee after: CHUZHOU XINNUO INDUSTRIAL Co.,Ltd. Address before: No. 999, Huadong Road, Chuzhou Development Zone, Anhui Province 239000 Patentee before: CHUZHOU JINNUO INDUSTRIAL Co.,Ltd. |