CN1190283C - Hollow ball plug and its making method - Google Patents
Hollow ball plug and its making method Download PDFInfo
- Publication number
- CN1190283C CN1190283C CNB011416777A CN01141677A CN1190283C CN 1190283 C CN1190283 C CN 1190283C CN B011416777 A CNB011416777 A CN B011416777A CN 01141677 A CN01141677 A CN 01141677A CN 1190283 C CN1190283 C CN 1190283C
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- core
- ball plug
- hollow ball
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Abstract
The present invention relates to a hollow ball plug and a making method thereof. The present invention aims to offer a hollow ball plug and a making method thereof, and the hollow ball plug has the advantages of compact material and favorable quality; the material cost of the ball plug is reduced, and the weight of the ball plug is lightened. The hollow ball plug is in the shape of a ball; the inner part of the hollow ball plug is hollow; the two corresponding ends of the hollow ball plug are respectively provided with an upper through hole and a lower through hole. The making method of the hollow ball plug comprises the following steps: a lower die and an upper die are prepared, a lower semisphere die cavity and an upper die cavity which is in the shape of an hourglass are formed from the lower die and the upper die; the upper die cavity is composed of an upper semisphere die cavity, a necking part and a funnel part; a sand core which is provided with an axial pouring channel is placed and fixed; a centrifugal casting machine is started; molten metal is quantitatively cast, rotated and shaped; the hollow ball plug is produced; the upper die is taken out, the sand core is smashed, and then, the smashed sand core is taken out. The bottom side of the sand core is a ball the top of which is provided with a cylindrical part and a connection part.
Description
Technical field
The invention belongs to method for manufacturing bulb stopper, particularly a kind of hollow ball plug manufacture method.
Background technology
Along with science and technology is showing improvement or progress day by day, how in manufacture process, reduce cost, promote quality effectively, be the effort target of general industry.General known bulb stopper and manufacture method thereof with centrifugal casting, it is the upper and lower mould of direct closing, and by the cast gate casting of molten metal, to utilize centrifugal casting machine, forms the living centrifugal force that rotation is at a high speed produced, and is bulb stopper thereby make upper and lower in-mold molding.But the bulb stopper that this kind method produces though have columned through hole in the middle of bulb stopper, is all solid except that lead to the hole site in its bulb stopper.
The bulb stopper of commonly using has following scarce fraud at least on use is implemented:
Because bulb stopper inside is solid shape, therefore not only cause the molten metal aequum big, manufacturing cost is also higher, and because bulb stopper is solid shape, overall weight is heavy, is difficult for carrying; When using in the valve body of packing into, the flexibility of rotation is not good yet.
Summary of the invention
The purpose of this invention is to provide that a kind of dense materials, quality are superior, the material cost that reduces bulb stopper, the hollow ball plug manufacture method that alleviates bulb stopper weight.
The present invention includes the following step:
Step 1
Be ready for mould:
Required bed die is placed in the centrifugal casting machine, and in bed die, is formed with the lower semisphere die cavity of corresponding hollow ball plug lower semisphere; In addition corresponding bed die is provided with mold, and is provided with the upper mould cave that is hourglass shape in mold, and upper mould cave is made of the pars infundibularis that episphere die cavity, necking section, middle part and the top of the corresponding hollow ball plug episphere in the bottom that is communicated with in regular turn is tapered hole;
Step 2
Put core:
The top of core is located in the upper mould cave of mold; Core axially runs through and is provided with running channel, its bottom side is the corresponding spheroid of upper and lower hemisphere die cavity with mold and bed die, and make between the spheroid of core and the upper and lower hemisphere die cavity and forming and the corresponding space of hollow ball plug, core is provided with in the spheroid top and the hollow ball plug corresponding columnar portion of boring a hole, and is provided with the linking part that passes the mold necking section in the top of columnar portion;
Step 3
Fixing core:
The linking part of core is passed the mold necking section to pars infundibularis, and fill between linking part and pars infundibularis with fixing fast setting sand, so that core fixedly is suspended to mold, the corresponding bed die of mold that will be fixed with core is again fixed;
Step 4
Start centrifugal casting machine:
Start the centrifugal casting machine that is provided with upper and lower mould, and the upper and lower mould rotation of interlock;
Step 5
The quantitative casting molten metal:
At upper and lower mould with in the centrifugal casting machine rotation, in mold corresponding to the running channel of core in casting of molten metal, and the flow of control molten metal;
Step 6
Rotational forming:
The upper and lower mould of rotation makes molten metal spread equably between the upper and lower hemisphere die cavity of upper and lower mould and core spheroid and moulding along the core running channel;
Step 7
Finish hollow ball plug:
In centrifugal casting machine rotational forming process, is to be shaped to the bulb stopper of open-core type with molten metal after general time cooling at upper and lower mould;
Step 8
Take out mold:
Stop centrifugal casting machine, and mold is separated with bed die, hollow ball plug and the core with moulding takes out again;
Step 9
Smash core:
Setting sand with the mold pars infundibularis smashes earlier, takes out the hollow ball plug that coats core, and core is smashed;
Take out broken core:
The broken core of hollow ball plug inside is drawn out in upper and lower perforation in corresponding sand-core cylinder portion of hollow ball plug and the formation of running channel bottom side.
Wherein:
In the step 2 of putting core, be provided with a fitting portion on the linking part of core at least; In the step 3 of fixing core, setting sand combines with fitting portion.
Be ready between the necking section of mold in the step 1 of mould and the episphere die cavity and be provided with cone hole part; Put in the step 2 of core, core is provided with the corresponding conus portion with mold internal taper hole portion in spheroid columnar portion top; The cone hole part of conus portion periphery and mold is fitted.
The necking section of being ready for mold in the step 1 of mould directly is connected with the episphere die cavity; Put in the step 2 of core, sand-core cylinder portion top is provided with the flat face that directly is connected with linking part; Direct and the core flat face applying in bottom side, mold necking section.
The ring groove of fitting portion on the core linking part for filling up with setting sand.
Owing to the present invention includes the following step:
Be ready for mould:
Required bed die is placed in the centrifugal casting machine, and in bed die, is formed with the lower semisphere die cavity of corresponding hollow ball plug lower semisphere; In addition corresponding bed die is provided with mold, and is provided with the upper mould cave that is hourglass shape in mold, and upper mould cave is made of the pars infundibularis that episphere die cavity, necking section, middle part and the top of the corresponding hollow ball plug episphere in the bottom that is communicated with in regular turn is tapered hole;
Put core:
The top of core is located in the upper mould cave of mold; Core axially runs through and is provided with running channel, its bottom side is the corresponding spheroid of upper and lower hemisphere die cavity with mold and bed die, and make between the spheroid of core and the upper and lower hemisphere die cavity and forming and the corresponding space of hollow ball plug, core is provided with in the spheroid top and the hollow ball plug corresponding columnar portion of boring a hole, and is provided with the linking part that passes the mold necking section in the top of columnar portion;
Fixing core:
The linking part of core is passed the mold necking section to pars infundibularis, and fill between linking part and pars infundibularis with fixing fast setting sand, so that core fixedly is suspended to mold, the corresponding bed die of mold that will be fixed with core is again fixed;
Start centrifugal casting machine:
Start the centrifugal casting machine that is provided with upper and lower mould, and the upper and lower mould rotation of interlock;
The quantitative casting molten metal:
At upper and lower mould with in the centrifugal casting machine rotation, in mold corresponding to the running channel of core in casting of molten metal, and the flow of control molten metal;
Rotational forming:
The upper and lower mould of rotation makes molten metal spread equably between the upper and lower hemisphere die cavity of upper and lower mould and core spheroid and moulding along the core running channel;
Finish hollow ball plug:
In centrifugal casting machine rotational forming process, is to be shaped to the bulb stopper of open-core type with molten metal after general time cooling at upper and lower mould;
Take out mold:
Stop centrifugal casting machine, and mold is separated with bed die, hollow ball plug and the core with moulding takes out again;
Smash core:
Setting sand with the mold pars infundibularis smashes earlier, takes out the hollow ball plug that coats core, and core is smashed;
Take out broken core:
The broken core of hollow ball plug inside is drawn out in upper and lower perforation in corresponding sand-core cylinder portion of hollow ball plug and the formation of running channel bottom side.The manufacture method of hollow ball plug of the present invention can manufacture hollow ball plug with bulb stopper, forms hollow form thereby reach in bulb stopper inside, can significantly reduce the cost of metal material, and can alleviate the weight of bulb stopper, be convenient to construction and carrying, increase the flexibility ratio when using simultaneously.Not only dense materials, quality are superior, and reduce bulb stopper material cost, alleviate bulb stopper weight, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, for schematic flow sheet of the present invention.
Fig. 2, the mould decomposition texture schematic sectional view that uses for the present invention.
Fig. 3, the mould structure schematic sectional view that uses for the present invention.
Fig. 4, the mould decomposition texture schematic sectional view (core is provided with fitting portion) that uses for the present invention.
Fig. 5, be the hollow ball plug structural representation cutaway view made from the present invention.
Fig. 6, the sand core structure schematic sectional view (core is provided with flat face) that uses for the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, hollow ball plug manufacture method of the present invention comprises the following steps:
Step 1
Be ready for mould:
Required bed die 10 is placed in the centrifugal casting machine 50, and in bed die 10, is formed with the lower semisphere die cavity 11 of corresponding hollow ball plug 41 lower semispheres; Corresponding bed die 10 is provided with mold 20 in addition, and be provided with the upper mould cave 21 that is hourglass shape in mold 20, upper mould cave 21 is made of the pars infundibularis 25 that the episphere die cavity 22 of corresponding hollow ball plug 41 epispheres in the bottom that is communicated with in regular turn, necking section, middle part 23, cone hole part 24 between necking section 23 and episphere die cavity 22 and top are tapered hole;
Step 2
Put core 30:
The top of core 30 is located in the upper mould cave 21 of mold 20; Core 30 axially runs through and is provided with running channel 31, its bottom side be with mold 20 and bed die 10 on, lower semisphere die cavity 22,11 corresponding spheroids 32, and the spheroid 32 that makes core 30 is with last, lower semisphere die cavity 22, form and hollow ball plug 41 corresponding spaces between 11, core 30 is provided with in spheroid 32 tops with hollow ball plug 41 perforation 42 corresponding columnar portion 33 and reaches and mold 20 internal taper hole portions 24 corresponding conus portions 34, be provided with the linking part 35 that passes mold 20 necking sections 23 in the top of conus portion 34, thereby make conus portion 34 peripheries of core 30 can fit in the cone hole part 24 of mold 20;
Step 3
Fixedly core 30:
As shown in Figure 3, the linking part 35 of core 30 is passed mold 20 necking sections 23 to pars infundibularis 25, and between linking part 35 and pars infundibularis 25, fill with fixing fast setting sand 40, so that core 30 fixedly is suspended to mold 20, the mold 20 corresponding bed dies 10 that will be fixed with core 30 are again fixed;
Step 4
Start centrifugal casting machine 50:
Start the centrifugal casting machine 50 that is provided with upper and lower mould 20,10, and upper and lower mould 20,10 rotations of interlock;
Step 5
The quantitative casting molten metal:
When upper and lower mould 20,10 is with centrifugal casting machine 50 rotation, in mold 20 corresponding to the running channel 31 of core 30 in casting of molten metal, and control the flow of molten metal;
Step 6
Rotational forming:
Upper and lower mould is after 20,10 rotation a period of times, because of the centrifugal force that is produced at a high speed, molten metal spread between the upper and lower hemisphere die cavity 22,11 of upper and lower mould 20,10 and core 30 spheroids 32 and moulding equably along core 30 running channels 31;
Step 7
Finish hollow ball plug 41:
At upper and lower mould 20,10 in centrifugal casting machine 50 rotational forming processes, system can be with molten metal after general time cooling, be shaped to the bulb stopper 41 of open-core type, and form upper and lower perforation 42,42 ' with running channel 31 bottom sides in hollow ball plug 41 corresponding core 30 conus portions 34;
Step 8
Take out mold 20:
Stop centrifugal casting machine 50, and mold 20 is separated with bed die 10, hollow ball plug 41 and the core 30 with moulding takes out again;
Step 9
Smash core 30:
Setting sand 40 with mold 20 pars infundibularises 25 smashes earlier, take out the hollow ball plug 41 that coats core 30, and because of hollow ball plug 41 is a metal material, hardness is the hardness height of inner core 30, core 30 can be smashed by this, and can not damaged hollow ball plug 41;
Take out broken core 30:
Form upper and lower perforation 42,42 ' in hollow ball plug 41 corresponding core 30 conus portions 34 with running channel 31 bottom sides, thereby draw out the broken core 30 of hollow ball plug 41 inside, to finish hollow ball plug of the present invention by upper and lower perforation 42,42 '.
As shown in Figure 4, in the step 2 of putting core, be provided with one on the linking part 35 of core 30 at least and be the fitting portion 26 of ring groove; In the step 3 of fixing core 30, setting sand 40 can be filled in the fitting portion 26 of core 30, thereby makes setting sand 40 and core 30 form more firm bonding state.
As shown in Figure 6, core 30 columnar portion 33 tops system is provided with flat face 36 directly to be connected with linking part 35; Be provided with the upper mould cave that is hourglass shape in the mold, upper mould cave is made of the pars infundibularis that episphere die cavity, necking section, middle part and the top of the corresponding hollow ball plug episphere in the bottom that is communicated with in regular turn is tapered hole; Direct and flat face 36 applyings in bottom side, necking section.
As shown in Figure 5, be bulb stopper spherical in shape with the hollow ball plug 41 of manufacturing of the present invention, its inner system is hollow form, and two corresponding end of hollow ball plug 41 are respectively equipped with upper and lower perforation 42,42 '.
In sum, the present invention has following advantage:
Bulb stopper can be manufactured hollow ball plug by the present invention, form hollow form, can significantly reduce the cost of metal material, and can alleviate the weight of bulb stopper, be convenient to construction and carrying, increase the flexibility ratio when using simultaneously thereby reach in bulb stopper inside.
Claims (5)
1, a kind of hollow ball plug manufacture method is characterized in that it comprises the following steps:
Step 1
Be ready for mould:
Required bed die is placed in the centrifugal casting machine, and in bed die, is formed with the lower semisphere die cavity of corresponding hollow ball plug lower semisphere; In addition corresponding bed die is provided with mold, and is provided with the upper mould cave that is hourglass shape in mold, and upper mould cave is made of the pars infundibularis that episphere die cavity, necking section, middle part and the top of the corresponding hollow ball plug episphere in the bottom that is communicated with in regular turn is tapered hole;
Step 2
Put core:
The top of core is located in the upper mould cave of mold; Core axially runs through and is provided with running channel, its bottom side is the corresponding spheroid of upper and lower hemisphere die cavity with mold and bed die, and make between the spheroid of core and the upper and lower hemisphere die cavity and forming and the corresponding space of hollow ball plug, core is provided with in the spheroid top and the hollow ball plug corresponding columnar portion of boring a hole, and is provided with the linking part that passes the mold necking section in the top of columnar portion;
Step 3
Fixing core:
The linking part of core is passed the mold necking section to pars infundibularis, and fill between linking part and pars infundibularis with fixing fast setting sand, so that core fixedly is suspended to mold, the corresponding bed die of mold that will be fixed with core is again fixed;
Step 4
Start centrifugal casting machine:
Start the centrifugal casting machine that is provided with upper and lower mould, and the upper and lower mould rotation of interlock;
Step 5
The quantitative casting molten metal:
At upper and lower mould with in the centrifugal casting machine rotation, in mold corresponding to the running channel of core in casting of molten metal, and the flow of control molten metal;
Step 6
Rotational forming:
The upper and lower mould of rotation makes molten metal spread equably between the upper and lower hemisphere die cavity of upper and lower mould and core spheroid and moulding along the core running channel;
Step 7
Finish hollow ball plug:
In centrifugal casting machine rotational forming process, is to be shaped to the bulb stopper of open-core type with molten metal after general time cooling at upper and lower mould;
Step 8
Take out mold:
Stop centrifugal casting machine, and mold is separated with bed die, hollow ball plug and the core with moulding takes out again;
Step 9
Smash core:
Setting sand with the mold pars infundibularis smashes earlier, takes out the hollow ball plug that coats core, and core is smashed;
Step 10
Take out broken core:
The broken core of hollow ball plug inside is drawn out in upper and lower perforation in corresponding sand-core cylinder portion of hollow ball plug and the formation of running channel bottom side.
2, hollow ball plug manufacture method according to claim 1 is characterized in that describedly in the step 2 of putting core, is provided with a fitting portion on the linking part of core at least; In the step 3 of fixing core, setting sand combines with fitting portion.
3, hollow ball plug manufacture method according to claim 1 is characterized in that being provided with cone hole part between the necking section of mold in the described step 1 of being ready for mould and the episphere die cavity; Put in the step 2 of core, core is provided with the corresponding conus portion with mold internal taper hole portion in spheroid columnar portion top; The cone hole part of conus portion periphery and mold is fitted.
4, hollow ball plug manufacture method according to claim 1 is characterized in that the necking section of mold in the described step 1 of being ready for mould directly is connected with the episphere die cavity; Put in the step 2 of core, sand-core cylinder portion top is provided with the flat face that directly is connected with linking part; Direct and the core flat face applying in bottom side, mold necking section.
5, hollow ball plug manufacture method according to claim 2 is characterized in that the ring groove of fitting portion for filling up with setting sand on the described core linking part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011416777A CN1190283C (en) | 2001-10-08 | 2001-10-08 | Hollow ball plug and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011416777A CN1190283C (en) | 2001-10-08 | 2001-10-08 | Hollow ball plug and its making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410190A CN1410190A (en) | 2003-04-16 |
| CN1190283C true CN1190283C (en) | 2005-02-23 |
Family
ID=4676325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011416777A Expired - Fee Related CN1190283C (en) | 2001-10-08 | 2001-10-08 | Hollow ball plug and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190283C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301814C (en) * | 2003-08-14 | 2007-02-28 | 律泉精密股份有限公司 | Hollow ball plug and its manufacturing method |
| CN102615249B (en) * | 2012-04-12 | 2014-04-16 | 日月重工股份有限公司 | Die for casting locking ring |
| CN105039631A (en) * | 2015-08-20 | 2015-11-11 | 合肥市田源精铸有限公司 | Nucleating agent containing rare earth and application of nucleating agent to spheroidal graphite cast iron smelting |
| CN110671511A (en) * | 2019-11-13 | 2020-01-10 | 青田阿迪玛阀门铸造有限公司 | Anti-deformation hollow sphere and processing method thereof |
-
2001
- 2001-10-08 CN CNB011416777A patent/CN1190283C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1410190A (en) | 2003-04-16 |
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