CN1017317B - Casting process of wheel-drum parts with flange edge - Google Patents
Casting process of wheel-drum parts with flange edgeInfo
- Publication number
- CN1017317B CN1017317B CN 89105611 CN89105611A CN1017317B CN 1017317 B CN1017317 B CN 1017317B CN 89105611 CN89105611 CN 89105611 CN 89105611 A CN89105611 A CN 89105611A CN 1017317 B CN1017317 B CN 1017317B
- Authority
- CN
- China
- Prior art keywords
- gate system
- running gate
- casting
- foundry goods
- wheel
- 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.)
- Expired
Links
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Forging (AREA)
Abstract
The present invention relates to a wheel-drum part provided with a flange edge, particularly to a casting method of a wheel drum of a motorcycle. A pouring system is reasonably arranged, and simultaneously, the structure of a casting piece is especially designed, which leads the casting piece to be orderly solidified. The defects that a casting piece is loosened and shrunk are avoided. A fine casting blank replaces a forging blank to be used in production. The cutting processing is reduced, the production period is shortened, the metal material is saved, and the cost is greatly lowered.
Description
The present invention relates to the casting method of the wheel-drum parts on flanged limit, particularly motorcycle wheel drum.
Wheel-drum parts, particularly motorcycle wheel drum, because it is stressed big, the requirement of strength height, adopt solid rough forging always, manufacture finished product, so not only complex process through complicated mechanical processing, production cycle is long, the cost height, and be cut and slattern a large amount of metal materials.For a long time, many people attempt research and replace rough forging with accurate steel-casting blank, reaching the purpose that reduces processing, economical with materials, reduces cost, but owing to process in casting is dealt with improperly, cause foundry goods always to produce vegetables pine and shrinkage cavity defect.
Be example with the Changjiang river 750 type motorcycles below, this situation is described, certain factory once designed several foundry goods for this type motorcycle wheel drum (accompanying drawing 1), to replace rough forging (accompanying drawing 2), these foundry goods divide two classes substantially, the one, on the basis of finished product (accompanying drawing 1), put allowance (as accompanying drawing 3), the 2nd, endoporus is changed into the conical bore of big tapering.(as accompanying drawing 4), their running gate system all are arranged on from part flange brim M end far away.Although all there is same problem in above-mentioned foundry goods geometry difference: the wall thickness at foundry goods thermal center circle A place is greater than the h of adjacent with it and close running gate system one end
1The section minimum wall thickness (MINI W.), foundry goods in chill process, h
1The section FEFO is chill, and the back end of thermal center circle A place is chill, thereby has caused h
1Section is stopped up the feeding passage at thermal center circle A place, causes in this place generation vegetables pine and shrinkage cavity.Same reason, the feeding passage at thermal center circle B place is because of h
2The section FEFO is chill and blocked, produces vegetables pine and shrinkage cavity, because above-mentioned defective appears in foundry goods, makes this technology can not be applied to produce always.
The objective of the invention is to adopt a kind of rational casting method, solve the quality problems of above-mentioned foundry goods, be used for flanged limit wheel-drum parts thereby make cast blank replace rough forging, particularly motorcycle wheel drum comes true.
The wheel-drum parts on this flanged limit, the casting method of motorcycle wheel drum particularly, it is characterized in that: when rationally running gate system being set, casting structure is done special design, accompanying drawing 5(Fig. 6, Fig. 7) be the present embodiment accompanying drawing, hollow casting from an end N ' of running gate system (M ", E) to away from an end M ' of running gate system (N ", N ' "); its wall thickness is attenuate or equate gradually, and two or more thermal centers circle B ', the A ' that formed by flange brim (A ", B ") diameter reduces one by one or be equal.Like this, after metal poured into, foundry goods was promptly from beginning to end consecutive solidification to running gate system one end from a running gate system end farthest.
Design to casting structure, the position of one or more thermal centers circles that also will consider to form by flange, except that near the thermal center of the running gate system circle B ' (A ' ", B ' "), the diameter of thermal center circle A ' (A ", B ") be less than or equal and its in abutting connection with and near the h of an end of running gate system
2' (h
1", h
2The wall thickness of ") section.
To the foundry goods endoporus, can form by one section or several sections cylinders or conical bore, be the best with the hole that certain taper is arranged.
The running gate system of foundry goods can be arranged on the foundry goods either direction.Be preferably disposed on the arbitrary end face in two end faces, the preferential selection to be arranged in the both ends of the surface from the nearest N ' end of foundry goods flange 1 so more helps strengthening the whole feeding of foundry goods, and saves metal material.
The casting method of the wheel-drum parts on this flanged limit, adopt the principle of consecutive solidification, casting structure shape reasonable in design and favorably situated running gate system, got through the feeding passage of single-casting, solve the feeding problem at thermal center circle place especially, thereby eliminated foundry goods vegetables pine and shrinkage cavity defect.Through the x-ray detection inspection, meet primary standard requirement in the HB5131-79 grade scale.And through 20,000 kilometers test run tests, quality problems do not appear.Thereby solved effectively with essence casting blank and replaced the production problem that rough forging is used for wheel-drum parts.
Accompanying drawing and brief description:
Accompanying drawing 1 is the motorcycle wheel drum structure diagram.Wherein 1
0Be flange, 2
0Be endoporus, 3
0It is outer garden part.
Accompanying drawing 2 is motorcycle wheel drum rough forgings commonly used.Wherein 1
4Be the blank flange brim, 3
dBe the blank cylindrical, no endoporus.
Accompanying drawing 3 is one of intrinsic motorcycle wheel drum foundry goods
Accompanying drawing 4 is two of intrinsic motorcycle wheel drum foundry goods
Accompanying drawing 5 is a kind of embodiment sketches of the present invention
Accompanying drawing 6 is second kind of embodiment sketch of the present invention.
Accompanying drawing 7 is the third embodiment sketches of the present invention
Accompanying drawing 3 explanatory note to the accompanying drawing 7:
1(1 ', 1 ", 1 ' ") be the foundry goods flange.2(2 ', 2 ", 2 ' ") be the foundry goods endoporus.
3(3 ', 3 ", 3 ' ") be the excircle part of foundry goods.I, II, III, be running gate system.
M(M ', M ", M ' "), N(N ', N ", N ' ") be two end faces of foundry goods.E is that ingate is installed the place.
A(A ', A ", A ' "), B(B ', B ", B ' ") be the thermal center circle of foundry goods.
h
1(h
1' h
1"), h
2(h
2', h
2"), h
3" be to be a section of foundry goods on boundary with the flange.
The invention will be further described below in conjunction with drawings and Examples:
Embodiment one:
As shown in Figure 5, running gate system 1 is arranged on the N ' end end face of hollow casting, near flange 1 '; Casting structure: matrix is formed h by three sections
2' wall thickness 〉=h
1' wall thickness, diameter＜h of thermal center circle A '
2' wall thickness.The diameter of the diameter of thermal center circle B ' 〉=thermal center circle A '.So promptly realized hollow casting from running gate system one end N ' to the end M ' wall thickness requirement of attenuate gradually away from running gate system, thereby when metal pours into after, foundry goods promptly begins to N ' end consecutive solidification only from M ' end.In addition, this scheme helps feeding because running gate system is arranged near on the round end face of thermal center, saves metal material, also is convenient to processing.
Embodiment two:
As shown in Figure 6.Running gate system: II is arranged on the flange 1 " an end face M far away " from hollow casting; Casting structure: form by taper hole for three sections of endoporus.h
1" wall thickness 〉=h
2" wall thickness 〉=h
3" wall thickness, the diameter of thermal center circle A " diameter 〉=B ", thermal center circle A " diameter≤h
1" wall thickness.Thermal center circle B " diameter≤h
2" wall thickness.The same routine principle has realized that hollow casting from running gate system one end M " to the end N away from running gate system " the wall thickness requirement of attenuate gradually, can reach the purpose of consecutive solidification.Compare with last example in addition, this scheme is owing to will guarantee h
3" Element Design thickness, so that single-casting wall ratio embodiment one wants is big, be unfavorable for saving metal material.But still the requirement of can ensuring the quality of products.
Embodiment three:
As shown in Figure 7.The running gate system III is arranged on the side of foundry goods, ingate and flange 1 ' " being communicated with foundry goods thermal center circle A ' ", and B ' is " on ingate, so can directly solve the feeding of thermal center circle.Casting section thickness begins can reach the purpose of consecutive solidification to away from an end of running gate system attenuate or equate gradually from an end E of running gate system.
But this scheme and such scheme are relatively, and because of strengthening flange thickness, waste metal material and gate portions are unfavorable for processing.
Claims (1)
1, a kind of casting method of wheel-drum parts of flanged limit is characterized in that: when rationally running gate system being set, casting structure is done special design:
1) hollow casting from by an end of running gate system to a end away from running gate system, its wall thickness subtracts book gradually or equates.
2) by the formed thermal center of foundry goods flange circle, remove near the running gate system, the thermal center circular diameter be less than or equal to it in abutting connection with and lean on running gate system one end casting section thickness.
3) by foundry goods flange brim formed two or two thermal center circles with the upper part, extremely away from running gate system one end, its diameter reduces one by one or equates from running gate system one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105611 CN1017317B (en) | 1989-08-03 | 1989-08-03 | Casting process of wheel-drum parts with flange edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105611 CN1017317B (en) | 1989-08-03 | 1989-08-03 | Casting process of wheel-drum parts with flange edge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041717A CN1041717A (en) | 1990-05-02 |
| CN1017317B true CN1017317B (en) | 1992-07-08 |
Family
ID=4856288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105611 Expired CN1017317B (en) | 1989-08-03 | 1989-08-03 | Casting process of wheel-drum parts with flange edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017317B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254522B (en) * | 2007-08-31 | 2010-12-22 | 广州驭风旭铝铸件有限公司 | Casting device, casting parts, casting production method and foundry method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302873C (en) * | 2002-09-09 | 2007-03-07 | 吉林大学 | Near finished shape sections roller casting method |
| CN100333810C (en) * | 2004-06-14 | 2007-08-29 | 侯文清 | Golf club head |
| CN100348345C (en) * | 2006-04-06 | 2007-11-14 | 佛山市南海奔达模具有限公司 | Side mold for gravitational casting of automobile hub |
| CN101987349B (en) * | 2009-07-31 | 2013-01-02 | 鞍钢重型机械有限责任公司 | Casting technology of stainless steel hydroelectric runner lower ring |
-
1989
- 1989-08-03 CN CN 89105611 patent/CN1017317B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254522B (en) * | 2007-08-31 | 2010-12-22 | 广州驭风旭铝铸件有限公司 | Casting device, casting parts, casting production method and foundry method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041717A (en) | 1990-05-02 |
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| GR02 | Examined patent application | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |