CN103801662A - Method for manufacturing casting molds of precision-casting cast steel wheels - Google Patents
Method for manufacturing casting molds of precision-casting cast steel wheels Download PDFInfo
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- CN103801662A CN103801662A CN201410053148.1A CN201410053148A CN103801662A CN 103801662 A CN103801662 A CN 103801662A CN 201410053148 A CN201410053148 A CN 201410053148A CN 103801662 A CN103801662 A CN 103801662A
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Abstract
The invention provides a method for manufacturing casting molds of precision-casting cast steel wheels. The method comprises the steps of (1), designing lower mold core heads under block ceramic molds by taking the shape sizes of gear rings of cast gears as the basic sizes for assembling the block ceramic molds; (2), designing scraping plates of upper and lower cavities of sodium silicate-bonded sand for manufacturing gear blank casting molds by using the shape sizes of the gear rings of the gears, the sizes of mold cores of casting heads and the sizes of parts of the block ceramic molds, and scraping the upper and lower cavities of the sodium silicate-bonded sand of the casting molds; (3), manufacturing a template for accurately positioning the relative sizes of the adjacent block ceramic molds by using the shape sizes of the gear rings of the gears; (4), placing the block ceramic molds in grooves of the lower cavities in sequence to be firmly bond by using white emulsion to form sealed ceramic mold gear rings; (5), assembling the upper and lower cavities and the mold cores of the casting heads to obtain the casting molds of precision-casting cast steel wheels. According to the method, positioning vehicle wheels are not required to be manufactured, so that the box assembling process is simplified, the production cycle is shortened and the production cost is reduced; the sizes of the casting molds are accurately positioned.
Description
Technical field
The manufacture method that the invention provides a kind of essence casting cast steel gear casting mold, belongs to casting technology field.
Background technology
The production technology of current domestic Large Cast Steel Gear (gear diameter >=500mm, particularly gear diameter is more than 1000mm) is generally that gear blank is cast to column, then carries out the processing of tooth base and tooth Profile Machining and forms.In prior art, application number is 201210062967.3 the mould manufacturing method of cast steel gear blank and the mould assembling method of the use piecemeal ceramic mold casting cast steel gear that application number is 201310080940.1, can guarantee that polylith ceramic mould is on the casting mold being made up of waterglass sand mold, while combining mould assembling between lower impressions, guarantee between each piecemeal ceramic mould and on ceramic mould and casting mold, relative size mould assembling accurate positioning between lower impressions, after casting of molten metal, obtain the cast steel gear blank with approximate profile of tooth, so not only save blank and manufactured required molten steel consumption, can also reduce follow-up tooth Profile Machining man-hour.But there is inconvenience in the localization method of above-mentioned piecemeal ceramic mould, not only to produce the wheel of a location, and after the mould assembling of piecemeal ceramic mould, also location wheel will be taken out, increase the manufacture difficulty of casting mold.
Summary of the invention
Content of the present invention is to provide a kind of defect that can overcome above-mentioned traditional handicraft, need not makes location wheel, simplify mould assembling technique, shorten the production cycle, reduce production costs, the manufacture method of a kind of essence casting cast steel gear casting mold of the relative size accurate positioning of gained casting mold each several part.Its technology contents is:
A kind of manufacture method of essence casting cast steel gear casting mold, it is characterized in that adopting following steps: the drawing that 1. utilizes the gear blank of casting, obtain the appearance and size of gear-wheel gear-ring, as the basic size of piecemeal ceramic mould mould assembling, below every piecemeal ceramic mould, design the drag point for locating; 2. utilize the each several part size of appearance and size, dead head core size and the piecemeal ceramic mould of gear-wheel gear-ring, design the scraper plate of the upper and lower die cavity of water-glass sand of manufacturing gear blank casting mold, and scrape the upper and lower die cavity of water-glass sand of casting mold; 3. utilize the appearance and size of gear-wheel gear-ring to produce for the relative size of adjacent piecemeal ceramic mould being carried out to the accurately template of location; 4. in the water-glass sand lower impressions groove 2. obtaining in step, place successively one by one piecemeal ceramic mould, when placement, utilize step 3. in make locating template the position of adjacent piecemeal ceramic mould is accurately located, and it is firm by white glue with vinyl, adjacent piecemeal ceramic mould to be bondd, in water-glass sand lower impressions, form the ceramic mould gear ring of sealing; 5., after the upper and lower die cavity of water-glass sand and the mould assembling of dead head core 2. step being obtained, obtain the complete casting mold for essence casting cast steel gear.
The manufacture method of described a kind of essence casting cast steel gear casting mold, when 1. step is designed for the drag point of location below piecemeal ceramic mould, need design 5 ° ± 0.5 gradient.
The manufacture method of described a kind of essence casting cast steel gear casting mold, step 2. in water-glass sand lower impressions scraper plate be used to form the size of lower impressions groove, with step 1. in the consistent size of drag point.
Compared with prior art, its advantage is in the present invention:
1, in mould assembling process, first utilize lower impressions scraper plate to scrape the water-glass sand lower impressions groove for placing piecemeal ceramic mould drag point, then place successively one by one piecemeal ceramic mould, when placement, utilize step 3. in make locating template the position of adjacent piecemeal ceramic mould is accurately located, accurate location can guarantee piecemeal ceramic mould matched moulds time, and then the dimensional accuracy of ceramic mould casting mold, the relative size accurate positioning of gained casting mold each several part are guaranteed;
2, adopt the present invention, need not make again the wheel of a location, also not be used in the mould assembling of piecemeal ceramic mould and will locate again wheel taking-up later, simplified mould assembling technique, shortened the production cycle, reduced production cost.
The specific embodiment
Embodiment mono-, making a diameter is the cast steel gear that 1923.2mm, the number of teeth are 119, concrete steps are:
1) make 24 piecemeal ceramic moulds, every piecemeal ceramic mould has 5 teeth, designs the drag point playing the role of positioning below every piecemeal ceramic mould, and the gradient of drag point is 5 °;
2) utilize the size of appearance and size, dead head core and the piecemeal ceramic mould of gear-wheel gear-ring, design the scraper plate of the upper and lower die cavity of water-glass sand of manufacturing gear blank casting mold, and the upper and lower die cavity of the water-glass sand that scrapes casting mold, and size and the step 1 of lower impressions groove) in the consistent size of drag point;
3) utilize the appearance and size of gear-wheel gear-ring to produce for the relative size of adjacent piecemeal ceramic mould being carried out to the accurately template of location;
4) in step 2) obtain water-glass sand lower impressions groove in, 24 piecemeal ceramic moulds are placed one by one successively, when placement, utilize step 3) in make locating template the position of adjacent piecemeal ceramic mould is accurately located, and it is firm by white glue with vinyl, adjacent piecemeal ceramic mould to be bondd, in water-glass sand lower impressions, form the ceramic mould gear ring of sealing;
5) by step 2) after the upper and lower die cavity of water-glass sand and the mould assembling of dead head core that obtain, obtain the complete casting mold for essence casting cast steel gear.
Claims (3)
1. the manufacture method of an essence casting cast steel gear casting mold, it is characterized in that adopting following steps: the drawing that 1. utilizes the gear blank of casting, obtain the appearance and size of gear-wheel gear-ring, as the basic size of piecemeal ceramic mould mould assembling, below every piecemeal ceramic mould, design the drag point for locating; 2. utilize the each several part size of appearance and size, dead head core size and the piecemeal ceramic mould of gear-wheel gear-ring, design the scraper plate of the upper and lower die cavity of water-glass sand of manufacturing gear blank casting mold, and scrape the upper and lower die cavity of water-glass sand of casting mold; 3. utilize the appearance and size of gear-wheel gear-ring to produce for the relative size of adjacent piecemeal ceramic mould being carried out to the accurately template of location; 4. in the water-glass sand lower impressions groove 2. obtaining in step, place successively one by one piecemeal ceramic mould, when placement, utilize step 3. in make locating template the position of adjacent piecemeal ceramic mould is accurately located, and it is firm by white glue with vinyl, adjacent piecemeal ceramic mould to be bondd, in water-glass sand lower impressions, form the ceramic mould gear ring of sealing; 5., after the upper and lower die cavity of water-glass sand and the mould assembling of dead head core 2. step being obtained, obtain the complete casting mold for essence casting cast steel gear.
2. the manufacture method of a kind of essence casting cast steel gear casting mold according to claim 1, is characterized in that: when 1. step is designed for the drag point of location below piecemeal ceramic mould, need design 5 ° ± 0.5 gradient.
3. the manufacture method of a kind of essence casting cast steel gear casting mold according to claim 1, is characterized in that: step 2. in water-glass sand lower impressions scraper plate be used to form the size of lower impressions groove, with step 1. in the consistent size of drag point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053148.1A CN103801662A (en) | 2014-02-17 | 2014-02-17 | Method for manufacturing casting molds of precision-casting cast steel wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053148.1A CN103801662A (en) | 2014-02-17 | 2014-02-17 | Method for manufacturing casting molds of precision-casting cast steel wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103801662A true CN103801662A (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410053148.1A Pending CN103801662A (en) | 2014-02-17 | 2014-02-17 | Method for manufacturing casting molds of precision-casting cast steel wheels |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724549A (en) * | 1992-04-03 | 1995-01-27 | Eb Bruehl Aluminiumtechnik Gmbh | Method for manufacture of wheel for automotive use and said wheel |
| CN102397986A (en) * | 2011-11-01 | 2012-04-04 | 昆明理工大学 | Method for preparing metal grinding ball mould by using ceramic model |
| CN202555796U (en) * | 2012-04-01 | 2012-11-28 | 秦皇岛戴卡美铝车轮有限公司 | Wheel casting mold |
| CN103182481A (en) * | 2013-03-14 | 2013-07-03 | 山东理工大学 | Mold assembling method for casting cast steel gear by blocking ceramic molds |
| CN103302249A (en) * | 2012-03-12 | 2013-09-18 | 山东理工大学 | Manufacturing method for mould of cast steel gear blank |
| CN103521720A (en) * | 2013-10-29 | 2014-01-22 | 江苏中联铝业有限公司 | Wide-rim wheel mold with guiding device |
-
2014
- 2014-02-17 CN CN201410053148.1A patent/CN103801662A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724549A (en) * | 1992-04-03 | 1995-01-27 | Eb Bruehl Aluminiumtechnik Gmbh | Method for manufacture of wheel for automotive use and said wheel |
| CN102397986A (en) * | 2011-11-01 | 2012-04-04 | 昆明理工大学 | Method for preparing metal grinding ball mould by using ceramic model |
| CN103302249A (en) * | 2012-03-12 | 2013-09-18 | 山东理工大学 | Manufacturing method for mould of cast steel gear blank |
| CN202555796U (en) * | 2012-04-01 | 2012-11-28 | 秦皇岛戴卡美铝车轮有限公司 | Wheel casting mold |
| CN103182481A (en) * | 2013-03-14 | 2013-07-03 | 山东理工大学 | Mold assembling method for casting cast steel gear by blocking ceramic molds |
| CN103521720A (en) * | 2013-10-29 | 2014-01-22 | 江苏中联铝业有限公司 | Wide-rim wheel mold with guiding device |
Non-Patent Citations (1)
| Title |
|---|
| 康海峰: "高温合金空心叶片精密铸造用陶瓷型芯与型壳的研究现状", 《材料工程》 * |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |