CN106001430A - Casting process for large-size gear ring casting piece - Google Patents
Casting process for large-size gear ring casting piece Download PDFInfo
- Publication number
- CN106001430A CN106001430A CN201610552956.1A CN201610552956A CN106001430A CN 106001430 A CN106001430 A CN 106001430A CN 201610552956 A CN201610552956 A CN 201610552956A CN 106001430 A CN106001430 A CN 106001430A
- Authority
- CN
- China
- Prior art keywords
- gear ring
- foundry goods
- casting
- chill
- ring foundry
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a casting process for a large-size gear ring casting piece and belongs to the technical field of casting. A gear ring casting piece sand mold is casted and divided into an upper box and a lower box with a gear ring end surface as a parting surface; the gear ring casting piece is arranged in the lower box; and the gear thickness of the gear ring casting piece in the radial direction is D, and the gear width of the gear ring casting piece in the axial direction is H. The casting process is characterized in that an annular riser wall is correspondingly arranged on the upper side of the upper end surface of the gear ring casting piece, and a plurality of chilling blocks arranged in the radial direction are arranged on the radial periphery of the gear ring casting piece. The casting process has the beneficial effects that upward floating of steel slag in the molten steel solidification process is avoided, and the casting piece tooth surface defects such as slag inclusion, cracking and shrinkage porosity are prevented.
Description
Technical field
The present invention relates to casting technology field, particularly to the casting technique of a kind of large gear ring foundry goods.
Background technology
Large gear ring foundry goods belongs to as cement machinery, metallurgy industry, the core linkage part of building material industry equipment, its flank of tooth
In stress polished surface, Requirements of Nondestructive Testing is strict, it is impossible to have casting flaws such as slag inclusion, shrinkage porosite, crackle, its structure such as Fig. 1 institute
Showing, wherein periphery is the flank of tooth 1 of polish, and inner circumferential is provided with some radial direction gussets 2, and this gear ring facewidth vertically is H, radially
Transverse tooth thickness be D.In prior art, the casting technique of this gear ring foundry goods is as in figure 2 it is shown, put down the casting of gear ring periphery, after casting
Machining toothed surface, the uniform some standard round rising heads 3 in upper surface during casting, and arrange certain along the machine direction of profile of tooth
Allowance is so that machining.In production practices, above-mentioned casting technique has a disadvantage in that
1) find when carrying out Non-Destructive Testing after polish that the flank of tooth has slag inclusion, the casting defect such as shrinkage porosite, crackle, further weld
Reprocess and can cause part rejection or reduce part service life；
2) traditional handicraft and rising head are unfavorable in molten steel that slag floats, and easily occurs that slag concentrates on flank of tooth position.
Summary of the invention
It is an object of the invention to provide the casting technique of a kind of large gear ring foundry goods that can reduce flank of tooth casting flaw.
The object of the present invention is achieved like this, the casting technique of a kind of large gear ring foundry goods, described gear ring casting sand mold
Dividing top box and nowel casting with gear ring end face for die joint, described gear ring foundry goods is arranged in nowel, and described gear ring foundry goods is along footpath
To transverse tooth thickness be D, the described gear ring foundry goods facewidth vertically is H, is correspondingly provided with annular on the upside of the upper surface of described gear ring foundry goods
Rising head wall, the outer radial periphery of described gear ring foundry goods is provided with some chills being radially arranged.
The casting technique of the large gear ring foundry goods of the present invention, changes the standard round rising head of gear ring foundry goods upper surface into annular
Rising head wall, during overcoming molten steel solidification, part slag floats up to the flank region near gear ring end face, thus ensures the flank of tooth
The quality of position foundry goods；Outer radial periphery at gear ring foundry goods arranges chill, can be formed from chill root to the temperature emitting port part
Degree ordering temperature field from low temperature to high temperature, thus realize from foundry goods to the consecutive solidification in rising head direction.Therefore the present invention's is upper
State having the beneficial effect that of casting technique and avoid slag floating during molten steel solidification, and prevent foundry goods flank of tooth slag inclusion, crackle, contracting
The defects such as pine.
As a further improvement on the present invention, the radially inner side of described gear ring foundry goods is evenly equipped with some radial direction gussets, described
Chill is correspondingly arranged at the periphery of the radially gear ring foundry goods that gusset is corresponding, the edge, periphery of the gear ring foundry goods that each radial direction gusset is corresponding
The uniform several chills in facewidth direction.In this structure, chill is arranged on the outside of the heat energy-saving position of gusset, gusset position can be made
Solidify at first, prevent gusset position from producing casting flaw.
As the further improvement of the present invention, a diameter of (0.5-0.7) D of described chill, described chill a length of
1.5 2 times of chill diameter, the spacing of described chill is 30 40mm.
Another as the present invention improves, described rising head wall thickness D1=D+(100 160), the height H1 of described rising head wall
=(0.5 0.75) H.
Being a progressive guarantee rising head wall position final set, the annular inboard of described rising head wall and outside are provided with thickness and are
The warming plate of 40 50mm.
Accompanying drawing explanation
Fig. 1 is the structural representation of large gear ring foundry goods.
Fig. 2 is the casting technique schematic diagram of prior art medium-and-large-sized gear ring foundry goods.
Fig. 3 is the foundary methods drawing of the large gear ring foundry goods of the present invention.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Detailed description of the invention
As shown in Figure 3 and Figure 4, for the casting technique of the large gear ring foundry goods of the present invention, gear ring casting sand mold is with gear ring end
Face is that die joint divides top box and nowel casting, and gear ring foundry goods is arranged in nowel, and gear ring foundry goods transverse tooth thickness radially is D, gear ring
The foundry goods facewidth vertically is H, is correspondingly provided with feed-ring wall 4 on the upside of the upper surface of gear ring foundry goods, and the footpath of gear ring foundry goods is outside
It is provided with some chills 5 being radially arranged week.
The radially inner side of gear ring foundry goods is evenly equipped with some radial direction gussets 3, and chill 5 is correspondingly arranged at radial direction gusset 3 correspondence
The periphery of gear ring foundry goods, the periphery of the gear ring foundry goods of each radial direction gusset 3 correspondence is uniform several chills 5 along facewidth direction.This knot
In structure, chill 5 is arranged on the outside of the heat energy-saving position of gusset 3, gusset position can be made to solidify at first, prevent gusset position from producing
Raw casting flaw.
For optimizing the size of chill, a diameter of (0.5-0.7) D of chill 5, the 1.5 of a length of chill diameter of chill
2 times, the spacing of chill is 30 40mm.
On the other hand, in the present embodiment, rising head wall 4 thickness D1=D+(100 160), the height H1=(0.5 of rising head wall 4
0.75) H.
Being a progressive guarantee rising head wall position final set, it is 40 that the annular inboard of rising head wall 4 and outside are provided with thickness
The warming plate of 50mm.
The casting technique of the large gear ring foundry goods of the present invention, changes the standard round rising head of gear ring foundry goods upper surface into annular and emits
Mouth wall, during overcoming molten steel solidification, part slag floats up to the flank region near gear ring end face, thus ensures flank of tooth portion
The quality of position foundry goods；Outer radial periphery at gear ring foundry goods arranges chill, can be formed from chill root to the temperature emitting port part
Ordering temperature field from low temperature to high temperature, thus realize from foundry goods to the consecutive solidification in rising head direction.Therefore the present invention's is above-mentioned
Slag floating during molten steel solidification is avoided in having the beneficial effect that of casting technique, and prevents foundry goods flank of tooth slag inclusion, crackle, shrinkage porosite
Etc. defect.
Claims (5)
1. a casting technique for large gear ring foundry goods, described gear ring casting sand mold with gear ring end face for die joint divide top box and under
Case casts, and described gear ring foundry goods is arranged in nowel, and described gear ring foundry goods transverse tooth thickness radially is D, and described gear ring foundry goods is along axle
To the facewidth be H, it is characterised in that being correspondingly provided with feed-ring wall on the upside of the upper surface of described gear ring foundry goods, described gear ring is cast
The outer radial periphery of part is provided with some chills being radially arranged.
The casting technique of large gear ring foundry goods the most according to claim 1, it is characterised in that the radial direction of described gear ring foundry goods
Inner side is evenly equipped with some radial direction gussets, and described chill is correspondingly arranged at the periphery of the radially gear ring foundry goods that gusset is corresponding, Mei Gejing
To the periphery of gear ring foundry goods corresponding to gusset along facewidth direction uniform several chills.
The casting technique of large gear ring foundry goods the most according to claim 2, it is characterised in that described chill a diameter of
(0.5-0.7) D, 1.5 2 times of a length of chill diameter of described chill, the spacing of described chill is 30 40mm.
4. according to the casting technique of the large gear ring foundry goods described in any one of claim 13, it is characterised in that described rising head
Wall thickness D1=D+(100 160), the height H1=(0.5 0.75 of described rising head wall) H.
5. according to the casting technique of the large gear ring foundry goods described in any one of claim 13, it is characterised in that described rising head
The annular inboard of wall and outside are provided with the warming plate that thickness is 40 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552956.1A CN106001430A (en) | 2016-07-14 | 2016-07-14 | Casting process for large-size gear ring casting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552956.1A CN106001430A (en) | 2016-07-14 | 2016-07-14 | Casting process for large-size gear ring casting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001430A true CN106001430A (en) | 2016-10-12 |
Family
ID=57118603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610552956.1A Pending CN106001430A (en) | 2016-07-14 | 2016-07-14 | Casting process for large-size gear ring casting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001430A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971426A (en) * | 2018-08-29 | 2018-12-11 | 共享铸钢有限公司 | Different size gear ring class casting nested type moulding casting mold |
| CN110405142A (en) * | 2019-08-28 | 2019-11-05 | 贵州大学 | A kind of car mat block casting method |
| CN113814354A (en) * | 2021-09-29 | 2021-12-21 | 上海交通大学 | Deformation-inhibiting pouring system and method for large-sized thin-wall high-temperature alloy hollow casing casting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106659A (en) * | 1979-02-09 | 1980-08-15 | Hitachi Metals Ltd | Mold of pipe joint |
| CN101837432A (en) * | 2010-05-20 | 2010-09-22 | 衡阳中钢衡重铸锻有限公司 | Tyre casting method and casting die |
| CN102266910A (en) * | 2010-06-01 | 2011-12-07 | 鞍钢重型机械有限责任公司 | Casting technology of rolling ring |
| CN204449223U (en) * | 2015-02-27 | 2015-07-08 | 济南格蓝压缩机有限公司 | Mesohigh Water-cooled cylinder body casting mould |
-
2016
- 2016-07-14 CN CN201610552956.1A patent/CN106001430A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106659A (en) * | 1979-02-09 | 1980-08-15 | Hitachi Metals Ltd | Mold of pipe joint |
| CN101837432A (en) * | 2010-05-20 | 2010-09-22 | 衡阳中钢衡重铸锻有限公司 | Tyre casting method and casting die |
| CN102266910A (en) * | 2010-06-01 | 2011-12-07 | 鞍钢重型机械有限责任公司 | Casting technology of rolling ring |
| CN204449223U (en) * | 2015-02-27 | 2015-07-08 | 济南格蓝压缩机有限公司 | Mesohigh Water-cooled cylinder body casting mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971426A (en) * | 2018-08-29 | 2018-12-11 | 共享铸钢有限公司 | Different size gear ring class casting nested type moulding casting mold |
| CN110405142A (en) * | 2019-08-28 | 2019-11-05 | 贵州大学 | A kind of car mat block casting method |
| CN113814354A (en) * | 2021-09-29 | 2021-12-21 | 上海交通大学 | Deformation-inhibiting pouring system and method for large-sized thin-wall high-temperature alloy hollow casing casting |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |