CN100368116C - Combined mould for precasting ring-type forge piece cast steel billet - Google Patents
Combined mould for precasting ring-type forge piece cast steel billet Download PDFInfo
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- CN100368116C CN100368116C CNB2003101011429A CN200310101142A CN100368116C CN 100368116 C CN100368116 C CN 100368116C CN B2003101011429 A CNB2003101011429 A CN B2003101011429A CN 200310101142 A CN200310101142 A CN 200310101142A CN 100368116 C CN100368116 C CN 100368116C
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- cast steel
- steel base
- annular
- annular surface
- inner ring
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Abstract
The present invention discloses a combined mould for precasting a ring-shaped forge piece cast steel billet. The present invention belongs to the technical field of machine forging and casting. The present invention can lead a cast steel billet and a lower mould body to be separated, and simultaneously can lead a billet body of the cast steel billet not to generate a crack or a fracture. The inner side of the cast steel billet is provided with a flat concave circular arc-shaped annular surface or a concave isosceles triangle-shaped annular surface. The production cost of an annular forge piece is greatly reduced. The present invention has the technical scheme that an inner ring body (3) which is in a combined structure is arranged in a mould cavity of the lower mould body (2). The present invention is characterized in that the inner ring body (3) is composed of two, or three, or four small ring blocks (4) and a small wedge block (5); the concave circular arc-shaped annular surface (6) or the concave isosceles triangle-shaped annular surface (6) is arranged on the inner ring body (3).
Description
Technical field
The present invention relates to a kind of machinery and forge technical field with casting, especially relating to a kind of its cross section of making is that the prefabricated component of the annular forging of circle or rectangle is the particular manufacturing craft of cast steel base.
Background technology
Big for its bearing load at present, the cross section that special technical requirement is arranged again is its physical dimension and all bigger annular class machine components of weight of circle or rectangle, all is the forging that open die forging is made is made through operations such as machineds; All be earlier to be to cut or chop blanking with carving after the hot-rolled square steel of 200-300 millimeter is heated to forging temperature, subsequently with this blank post bake and the cake of upsetting, punching, also reaming after heating for the third time, shaping again with the length of side; When being the square-section, its forging can be shaped, can only preform when its forging is circular cross-section, be not only the forging that circle and annular size are also big, weight is also bigger for its cross section, must carry out four heating could be shaped by finish-forgings, becomes qualified forging.
In these conventional forging process, its positive one side is arranged, as the metallic fiber good directionality, dense internal organization, mechanical performance will improve greatly; But the one side that its deficiency is also arranged, as: add showing tremendous enthusiasm time manyly, its forging stock scaling loss is many, coal-firedly consumes manyly, and equipment dynamic consumption is many, and labor strength is big, final production cost height.
One side in view of above its deficiency, people are inquiring into the circular material blank with the bigger annular forging piece of casting process elder generation manufactured size always, it is the cast steel base, replace or save part operation in " after square steel is heated to forging temperature; cut or chop blanking; post bake, rammer cake, punching and three heating preforms; four times heating back finish-forging is shaped " operation in the free forging process, use " the once technology of heating and forging and molding (circular, square-section can) " just can produce the method for qualified forging again with carving.But when selecting conventional depanning amount of taper for use because of it in the discussion process, the annular inboard of its cast steel base and the lower mold body of mould be stuck can not separate together or easily crack on the base substrate section of cast steel base or scrap in crack and forming.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of assembling die of prefabricated annular forging piece cast steel base, and its structure has the annular inboard that can make the cast steel base successfully separates with lower mold body, does not crack or the crack on base substrate simultaneously; Also can form the annular surface of the circular shape of a straight annular surface or a protrusion, also can be to constitute on the mold of the open die forging finish-forging forming technology that an energy carrying out subsequently or isoceles triangle annular skewed surface that can pinpoint protrusion on the mould of machine for rolling ring simultaneously, and the production cost of annular forging piece is reduced significantly in the annular inboard of base substrate in its annular inboard.
Technical scheme of the present invention is as follows: the inner ring body that a combining structure is set in the die cavity of lower mold body, this inner ring body is made up of little ring piece and little voussoir, forms the little ring piece of inner ring body and little voussoir and is respectively two, three, also can is four or more; Little ring piece and the contact surface between the little voussoir of forming inner ring body are that matching surface is the plane, still, all form the angle that promptly is set to separately between two matching surfaces on the little ring piece and between two matching surfaces on the little voussoir; The annular outer surface of inner ring body both can be set on promptly as the surface of die cavity straight annular surface, also can be set to recessed circular shape annular surface, can also be set to a recessed isoceles triangle skewed surface, and, when being provided with, do not need to consider the depanning gradient; Cavity bottom in lower mold body is provided with recessed step, and its step can be determined and can be limited the position of inner ring body in the lower mold body die cavity.
When using this mould, as long as the inner ring body of combining structure is placed in the die cavity of lower mold body; And after the casting beginning, can lay down little voussoir, at this moment, use hand hammer to knock out little voussoir on the inner ring body lightly and just can lay down little voussoir, this moment and just can make inner ring body lose applied external force and free shrink, just avoid the generation in crackle or crack, lay down little ring piece subsequently again or the lower mold body of overturning can be separated the cast steel base of annular forging piece with it.
List ton cost element and technical solution of the present invention that conventional free forging process forges the annular forging below: earlier prefabricated cast steel base, carry out open die forging (or rolling) finish-forging, the reference table of the ton cost element correspondence comparison of its annular forging again with machine for rolling ring:
| Title | Add showing tremendous enthusiasm time | Fire consumption % | Coal consumption % | Punching material (kg/ spare) | Forge the time (%) | Forging weight/blank is heavy | Workman/per tour | Ton cost (unit) | Remarks (use equipment) |
| Common process | 3-4 | 6 | 100 | 5-7 | 100 | 1/1.85 | 8 | 5085 | Hot rolling square billet+flat-die hammer |
| This programme | 1 | 1 | 30 | Do not have | 50 | 1/1.65 | 6 | 4140 | Cast steel base+flat-die hammer |
| This programme | 1 | 1 | 30 | Do not have | 50 | 1/1.4 | 3 | 3440 | Cast steel base+machine for rolling ring |
Beneficial effect of the present invention is as follows: owing to adopt technique scheme, the belt inboard that has just reached its cast steel base can separate with lower mold body, has reached simultaneously not crack on the base substrate of its cast steel base or the effect in crack; Also formed straight, that circular arc is a recessed or energy pinpoint recessed isoceles triangle annular skewed surface in the open die forging mold simultaneously in the base substrate inboard, make the Forging Technology of carrying out subsequently simplify greatly, production cost significantly reduces, and has realized the task of the present invention's expection.Its method and structure is all simple.
Description of drawings
Fig. 1 is the structural front view of the assembling die of a kind of prefabricated annular forging piece cast steel base of the present invention.
Fig. 2 is the structure vertical view of the assembling die of a kind of prefabricated annular forging piece cast steel base of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
In Fig. 1, Fig. 2: annular cast steel base 1, lower mold body 2, inner ring body 3, little ring piece 4, little voussoir 5, annular surface 6.
In the embodiment shown in the figures, be provided with the inner ring body 3 of combining structure in the annular housing of lower mold body 2, inner ring body 3 is arranged in the recessed step of cavity bottom of lower mold body 2, its inner ring body 3 respectively by little ring piece 4 and little voussoir 5 each two constitute, the upper surface of little voussoir 5 is higher than the upper surface of little ring piece 4, the upper surface of little ring piece 4 is higher than the upper surface of lower mold body 2, and the mold cavity surface that promptly contacts with annular cast steel base 1 on the annular outer surface of inner ring body 3 is provided with recessed isoceles triangle annular surface 6, and does not select the depanning gradient for use.
During use, the inner ring body 3 that assembles combining structure in lower mold body 2 gets final product.And after the casting beginning, can use hand hammer to knock out and lay down little voussoir 5 lightly, allow its belt cast steel base 1 freely cool off contraction.Lay down then little ring piece 4, the upset lower mold body 2 can produce qualified annular cast steel base 1 quickly and easily.
Claims (10)
1. the assembling die of a prefabricated annular forging piece cast steel base comprises lower mold body (2) and is arranged on inner ring body (3) in the recessed step of cavity bottom of lower mold body (2) that it is characterized in that: inner ring body (3) is constituted by little ring piece (4) and little voussoir (5).
2. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 1 is characterized in that: the annular surface (6) of inner ring body (3) is straight annular surface.
3. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 1 is characterized in that: the annular surface (6) of inner ring body (3) is the annular surface of recessed circular arc.
4. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 1 is characterized in that: the annular surface (6) of inner ring body (3) is recessed isoceles triangle annular surface.
5. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 2 is characterized in that: on the straight annular surface depanning gradient need not be set.
6. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 3 is characterized in that: on the annular surface of recessed circular arc the depanning gradient need not be set.
7. the assembling die of a kind of prefabricated annular forging piece cast steel base according to claim 4 is characterized in that: on the recessed isoceles triangle annular surface depanning gradient need not be set.
8. according to the assembling die of each described a kind of prefabricated annular forging piece cast steel base in the claim 1 to 7, it is characterized in that: the quantity of little ring piece (4) and little voussoir (5) is respectively two.
9. according to the assembling die of each described a kind of prefabricated annular forging piece cast steel base in the claim 1 to 7, it is characterized in that: the quantity of little ring piece (4) and little voussoir (5) is respectively three.
10. according to the assembling die of each described a kind of prefabricated annular forging piece cast steel base in the claim 1 to 7, it is characterized in that: the quantity of little ring piece (4) and little voussoir (5) is respectively four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101011429A CN100368116C (en) | 2003-10-18 | 2003-10-18 | Combined mould for precasting ring-type forge piece cast steel billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101011429A CN100368116C (en) | 2003-10-18 | 2003-10-18 | Combined mould for precasting ring-type forge piece cast steel billet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528541A CN1528541A (en) | 2004-09-15 |
| CN100368116C true CN100368116C (en) | 2008-02-13 |
Family
ID=34304178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101011429A Expired - Fee Related CN100368116C (en) | 2003-10-18 | 2003-10-18 | Combined mould for precasting ring-type forge piece cast steel billet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100368116C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312471A (en) * | 2015-11-30 | 2016-02-10 | 贵州航天新力铸锻有限责任公司 | Upset-extruding mold for special-shaped ring piece blank |
| CN106001364B (en) * | 2016-07-28 | 2018-08-31 | 江苏太平洋精锻科技股份有限公司 | One of radially inner ring finishing die of thin wall cylinder inner wall |
| CN106001365B (en) * | 2016-07-28 | 2018-03-06 | 江苏太平洋精锻科技股份有限公司 | Thin wall cylinder inwall second radially inner ring finishing die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163170A (en) * | 1996-01-12 | 1997-10-29 | 托比工业株式会社 | Method and apparatus for molding light-alloy wheel |
| CN2291983Y (en) * | 1993-04-02 | 1998-09-23 | 罗祥久 | Centrifugal casting die for synchronous ring blank of Dongfeng car |
| CN2316068Y (en) * | 1997-08-21 | 1999-04-28 | 湖北传动轴股份有限公司 | Automobile generator claw-pole blank finish forging die |
| CN1250695A (en) * | 1999-09-13 | 2000-04-19 | 杨嘉钦 | Static-pressure forge technology for cast wheel |
| CN2450441Y (en) * | 2000-11-10 | 2001-09-26 | 孙兆宝 | Spheroidal iron chain wheel casting stack |
| CN2483119Y (en) * | 2001-05-09 | 2002-03-27 | 元富铝业股份有限公司 | Mould for forming aluminium alloy wheel rim with heat radiation means |
-
2003
- 2003-10-18 CN CNB2003101011429A patent/CN100368116C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291983Y (en) * | 1993-04-02 | 1998-09-23 | 罗祥久 | Centrifugal casting die for synchronous ring blank of Dongfeng car |
| CN1163170A (en) * | 1996-01-12 | 1997-10-29 | 托比工业株式会社 | Method and apparatus for molding light-alloy wheel |
| CN2316068Y (en) * | 1997-08-21 | 1999-04-28 | 湖北传动轴股份有限公司 | Automobile generator claw-pole blank finish forging die |
| CN1250695A (en) * | 1999-09-13 | 2000-04-19 | 杨嘉钦 | Static-pressure forge technology for cast wheel |
| CN2450441Y (en) * | 2000-11-10 | 2001-09-26 | 孙兆宝 | Spheroidal iron chain wheel casting stack |
| CN2483119Y (en) * | 2001-05-09 | 2002-03-27 | 元富铝业股份有限公司 | Mould for forming aluminium alloy wheel rim with heat radiation means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1528541A (en) | 2004-09-15 |
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Owner name: QI HUCHENG Free format text: FORMER OWNER: HU BUYUAN; APPLICANT Effective date: 20070608 |
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Effective date of registration: 20070608 Address after: 035404 Mura Masahiroo County of Shanxi province Dingxiang Hotel Applicant after: Qi Hucheng Address before: 035402 Shanxi province Dingxiang Jiang Village Station No. 0201 Dingxiang County of Shanxi Province Metallurgical forging rolling mill (to) Applicant before: Hu Buyuan Co-applicant before: Qi Hucheng |
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