CN1291808C - Technology for preparing incomplete globe cased grate core of hot air furnace - Google Patents
Technology for preparing incomplete globe cased grate core of hot air furnace Download PDFInfo
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- CN1291808C CN1291808C CN 01136451 CN01136451A CN1291808C CN 1291808 C CN1291808 C CN 1291808C CN 01136451 CN01136451 CN 01136451 CN 01136451 A CN01136451 A CN 01136451A CN 1291808 C CN1291808 C CN 1291808C
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Abstract
The present invention discloses a method for manufacturing the assembly cores of incomplete spherical shell-shaped hot air furnace grates, which belongs to the technical field of casting. The present invention is characterized in that the grates are firstly divided into strips equally according to the characteristics of the shapes and the positions of the grate plates and the grate holes of the incomplete spherical shell-shaped hot air furnace grates, each strip of transverse holes is used as a group, the assembly cores are manufactured in groups according to longitudinal grouping, the assembly cores are numbered with sequence numbers, and novel casting sand materials are adopted. The present invention can be used by manufacture at once, the labor and the time are saved, the phenomena of inversed cores and embedded cores are avoided, the phenomena of fire against wind and opposite fire because of less gas release are overcome, the yield is enhanced, the surfaces of casting pieces are smooth, and the sanding workload and the labor intensity of workmen are reduced. The method of the present invention is suitable for the casting technique of casting pieces with large arc areas and complicated structures.
Description
Technical field
The invention belongs to the foundry engieering category, a kind of method of making incomplete globe cased hot-blast stove grate core of the incomplete globe cased hot-blast stove double-edged fine-toothed comb that particularly is used to cast.
Background technology
The conventional method of foundry furnace bamboo comb is the shape and structure of elder generation according to foundry goods, makes wooden model by drawing, is that basic mode is made the husky mould of casting then with the wooden model.For general part in addition, the problem of appearance is fewer, yet spherical shell shape hot-blast stove double-edged fine-toothed comb shape is special, and making just is not thing easily.Be divided into the 6-8 bar to the incomplete globe cased double-edged fine-toothed comb symmetrically, be that example will be reserved 162 in castor hole with a wherein maximum double-edged fine-toothed comb, and the geomery in its each hole is all variant, and quantity is many.Bad core down when mould assembling, core occurs falling easily, buries the core phenomenon, and yield rate is reduced; It is conventional in addition that to make material that label uses be with closing fat sand, the dry strength height, and diffusivity is good, cost is low, but when casting, gas forming amount is big, the fire of easily choking, or to fiery phenomenon, directly influence the service life of foundry goods, the wet strength of closing the fat core simultaneously is very low, must add an amount of clay or binding agent just has certain intensity, also to dry after the coremaking, prolong the moulding time.
Summary of the invention
The purpose of this invention is to provide a kind of method of making incomplete globe cased hot-blast stove grate core, its embodiment is at first incomplete globe cased hot-blast stove double-edged fine-toothed comb to be divided into strip, wherein maximum, the longest one is example, be divided into 18 groups by castor hole arrangement position, every group is separated into 9 holes by gusset, make wooden model according to every group of horizontal gusset again, make 18 core assembly core boxes altogether, and number consecutively.Make the counterdie spherical plate by the double-edged fine-toothed comb lower peripheral surface, and be assembled into one with the core assembly core box, back-up sand, tamping, strickling, the demoulding, finish and carve the core operation, the length of die cavity finds datum plane under the basis then, puts core assembly in order, back-up sand, fixing is stayed casting gate at peak, stays rising head in the side.
The sand material of described making core assembly is the water-glass sand new material.Form by the high quartz sand of refractoriness, waterglass, carbon dioxide, diffusant.
The making flow process of described core assembly is:
1. according to die cavity wooden model under the drawing making, the matrix width of its wooden model is the same with the castor gusset, and its length, cambered surface are consistent with the segment double-edged fine-toothed comb.
2. make the core assembly core box.
3. carve core and promptly be spill facing sand, filling core sand, rramming, add iliacus, add core assembly sand again, tamping is wipeed off, the demoulding with rubber hammer rapping exterior sheathing, makes crack between core assembly and the template, goes end plate, the demoulding, pricks air-vent, logical CO
2Gas-solid core assembly sand mold, the overturning core removes side plate, remove gusset after, the core assembly moulding.
4. the repetition said process is made 18 moulding core assemblies altogether, and is numbered in order.
5. make die cavity down, wooden model should conform to full size.
6. moulding: die cavity size back-up sand under basis on the smooth face, place wooden model groove back-up sand down, tamping, plastic strip system sprue gate and rising head are buried in back-up sand tamping again behind the periphery casing, ditching, prick air-vent, feed CO
2Gas-solid core assembly molding sand hangs out counterdie, burns foam plastics strip, repairs, shaping, carves in die cavity one side down that core assembly is put line, core assembly is put from two ends by the core assembly serial number in the clean back of cleaning, and core assembly has been put in compacting.
The core shelves grouping that the invention has the beneficial effects as follows this grate is made, and each core assembly is formed one by a plurality of, label, has overcome in the common process core, buries the core phenomenon.Improved yield rate, following characteristics arranged:
(1) the making wooden model is simplified, or not only do not made the following die cavity of putting core assembly and get final product as the whole full mold wooden model of belt carcass head.
(2) need not make core box according to each castor hole again, as long as make the core assembly core box by vertical reinforcing plate number grouping.
(3) the water-glass sand new material is adopted in cored-up mould, now-making-now-using, and intensity height, moulding be fast, need not dry, and shortened and made the core time, accelerated the production cycle.Gas forming amount is few, the fire of choking when avoiding pouring into a mould, to fiery phenomenon.
(4) cored-up mould is not prone to casting flaws such as overlap, burr, has reduced the polishing repairing work load.
Description of drawings
Fig. 1 is the contour structures schematic diagram of incomplete globe cased hot-blast stove double-edged fine-toothed comb;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a core assembly structural representation of construction drawing 1.
Embodiment
Fig. 1, Figure 2 shows that the contour structures schematic diagram of incomplete globe cased hot-blast stove double-edged fine-toothed comb, this kind grate all is up and down an arch face, and its two is an arc edge strip 3, in length and breadth the castor gusset 2 of Xiang Jiaoing, two ends and edge strip 3 fuse, and the grate plate 2 of Xiang Jiaoing surrounds 162 all differentiated castor of size shape holes 1 in length and breadth.The way of coremaking mould will be made more than 160 chip routinely, and time-consuming not very the size of castor body is not easy assurance, occurs falling core when always assembling easily, buries the core phenomenon, causes yield rate low.
Figure 3 shows that the shape and structure schematic diagram of a core assembly, on base 4, arrange 9 central layers 5 sidewards, its upper surface is a cambered surface, be gap 6 between two central layers 5, its width is the same with castor gusset 2 width, and this core assembly selects for use new material to make, and contains the high quartz sand of refractoriness, waterglass, carbon dioxide, diffusant is formed, gas forming amount is little, and foundry goods is difficult for producing the fire of choking, to the good fluidity of molten iron, also be difficult for producing to fiery phenomenon, adopt this finished material rate height, be not prone to overlap, casting flaws such as burr, smooth surface, the polishing repairing work load is little, has reduced great amount of manpower, material resources consume.The manufacturing process of this core assembly is as follows:
1. according to die cavity wooden model under the drawing making, the matrix width of its wooden model is the same with castor gusset 2, and its length, cambered surface are consistent with the segment double-edged fine-toothed comb.
2. make the core assembly core box.
3. carve core and promptly be spill facing sand, filling core sand, rramming, add iliacus, add core assembly sand again, tamping is wipeed off.The demoulding is with rubber hammer rapping exterior sheathing, makes and produces the crack between core assembly and the template, removes end plate, pricks air-vent, logical CO
2Gas-solid core assembly sand mold, the overturning core removes side plate, remove gusset after, the core assembly moulding.
4. the repetition said process is made 18 moulding core assemblies altogether, and is numbered in order.
5. make die cavity down, wooden model should conform to full size.
6. moulding: die cavity size back-up sand under basis on the smooth face, place wooden model groove back-up sand down, tamping, in the back-up sand tamping again of periphery casing, ditch buries plastic strip system sprue gate and rising head, pricks air-vent, passes through CO
2Gas-solid core assembly molding sand hangs out counterdie, burns foam plastics strip, repairs, shaping, carve core assembly in die cavity one side down and put, clean clean back and put core assembly from two ends by the core assembly order, and core assembly has been put in compacting.
Claims (3)
1. method of making incomplete globe cased hot-blast stove grate core, it is characterized in that: at first incomplete globe cased hot-blast stove double-edged fine-toothed comb is divided into strip, wherein maximum, the longest one is example, be divided into 18 groups by castor hole arrangement position, every group is separated into 9 holes by gusset, make wooden model according to every group of horizontal gusset again, make 18 core assembly core boxes altogether, and number consecutively; Make the counterdie spherical plate by the double-edged fine-toothed comb lower peripheral surface, and be assembled into one with the core assembly core box, back-up sand, tamping, strickling, the demoulding, finish and carve the core operation, the length of die cavity finds datum plane under the basis then, puts core assembly in order, back-up sand, fixing is stayed casting gate at peak, stays rising head in the side.
2. the method for making incomplete globe cased hot-blast stove grate core according to claim 1 is characterized in that: the sand material of described making core assembly is a water-glass sand.
3. the method for making incomplete globe cased hot-blast stove grate core according to claim 2 is characterized in that: the making flow process of described core assembly is:
(1) according to die cavity wooden model under the drawing making, the matrix width of its wooden model is the same with the castor gusset, and its length, cambered surface are consistent with the segment double-edged fine-toothed comb;
(2) make the core assembly core box;
(3) carve core promptly be spill facing sand, filling core sand, rramming, add iliacus, add core assembly sand again, tamping is wipeed off, the demoulding with rubber hammer rapping exterior sheathing, makes crack between core assembly and the template, goes end plate, the demoulding, pricks air-vent, logical CO
2Gas-solid core assembly sand mold, the overturning core removes side plate, remove gusset after, the core assembly moulding;
(4) repeat said process, make 18 moulding core assemblies altogether, and number in order;
(5) make die cavity down, wooden model should conform to full size;
(6) moulding: die cavity size back-up sand under basis on the smooth face, place wooden model groove back-up sand down, tamping, plastic strip system sprue gate and rising head are buried in back-up sand tamping again behind the periphery casing, ditching, prick air-vent, feed CO
2Gas-solid core assembly molding sand hangs out counterdie, burns foam plastics strip, repairs, shaping, carves in die cavity one side down that core assembly is put line, core assembly is put from two ends by the core assembly serial number in the clean back of cleaning, and core assembly has been put in compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136451 CN1291808C (en) | 2001-10-18 | 2001-10-18 | Technology for preparing incomplete globe cased grate core of hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136451 CN1291808C (en) | 2001-10-18 | 2001-10-18 | Technology for preparing incomplete globe cased grate core of hot air furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1343538A CN1343538A (en) | 2002-04-10 |
| CN1291808C true CN1291808C (en) | 2006-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01136451 Expired - Fee Related CN1291808C (en) | 2001-10-18 | 2001-10-18 | Technology for preparing incomplete globe cased grate core of hot air furnace |
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| Country | Link |
|---|---|
| CN (1) | CN1291808C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509667A (en) * | 2009-03-09 | 2009-08-19 | 上海市机械制造工艺研究所有限公司 | Grate production process for steel mill sintering apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028695B (en) * | 2014-05-12 | 2016-06-01 | 浙江机电职业技术学院 | A kind of subsides chamber cavityless casting method |
| CN110652026A (en) * | 2019-11-18 | 2020-01-07 | 云南省烟草公司昭通市公司 | Automatic coal feeding system and device for tobacco leaf bulk curing barn |
-
2001
- 2001-10-18 CN CN 01136451 patent/CN1291808C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509667A (en) * | 2009-03-09 | 2009-08-19 | 上海市机械制造工艺研究所有限公司 | Grate production process for steel mill sintering apparatus |
| CN101509667B (en) * | 2009-03-09 | 2013-12-18 | 上海市机械制造工艺研究所有限公司 | Production process for fire bar of steel mill sintering apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1343538A (en) | 2002-04-10 |
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Owner name: HEBEI JINXI IRON AND STEEL GROUP DAFANG HEAVY INDU Free format text: FORMER OWNER: LI SHUFEN Effective date: 20120611 Free format text: FORMER OWNER: WANG LIANZHONG LI HEJUN Effective date: 20120611 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120611 Address after: 064302 Hebei, Qianxi County, Tangshan City Province, three Tun Ying Town Patentee after: Hebei Jinxi Steel Group Dafang Industry Technology Co.,Ltd. Address before: 064302 Qianxi Hebei Second Machinery Casting Factory Co-patentee before: Wang Lianzhong Patentee before: Li Shufen Co-patentee before: Li Hejun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20151018 |
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