CN109834212A - Crank shaft blank forging technology - Google Patents
Crank shaft blank forging technology Download PDFInfo
- Publication number
- CN109834212A CN109834212A CN201711196231.4A CN201711196231A CN109834212A CN 109834212 A CN109834212 A CN 109834212A CN 201711196231 A CN201711196231 A CN 201711196231A CN 109834212 A CN109834212 A CN 109834212A
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- CN
- China
- Prior art keywords
- blank
- forging
- crank shaft
- crankshaft
- casting
- 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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- Forging (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention discloses a kind of crank shaft blank forging technology, comprising the following steps: (1) melting non-hardened and tempered steel；(2) molten steel is injected in casting mould, moulding by casting crank shaft blank part；(3) blank surface is cleared up after cooling, removes flash removed；(4) crank shaft blank part is subjected to enclosed hot-forging die, is then cooled down to obtain crankshaft forging blank；(5) crankshaft forging blank is detected, the qualified crankshaft forging blank of (6) detection is sanded using sand paper；(7) the crankshaft forging blank after sand milling is subjected to vanning transport.The present invention provides stock utilizations, reduce die cost, reduce forging time, are effectively improved the interior tissue and performance of part, improve its service life.
Description
Technical field
The invention belongs to Crankshaft Machining technical fields, and in particular to a kind of crank shaft blank forging technology.
Background technique
Crankshaft is an important part in piston-mode motor.Crankshaft-and-connecting-rod, piston etc. form crank connecting link together
Mechanism.When engine operation, the downward thrust of piston passes to crankshaft through connecting rod, and back and forth transporting to for piston is become bent from crankshaft
Rotary motion of the axis around itself axis, and outside output power, the power train through automobile drive automobile.
In recent years, the application development of non-hardened and tempered steel is rapid, has been widely used in automobile crane, connecting rod, semiaxis, steering
A variety of automobile forgings such as section, front axle and universal-joint fork.Non-hardened and tempered steel be on the basis of low-alloy steel or middle structural carbon steel in
The trace alloying elements such as vanadium, titanium, niobium are added, by modes such as control heating temperature, heating speed, cooling velocities, material are made to exist
Preferable comprehensive mechanical property and uniform microstructure are just obtained after forging or after rolling, it is not necessary to carry out Tempering and Quenching again.It reduces
Heat treatment procedure and equipment, the crackle for avoiding thermal deformation and quenching when heat treatment from occurring, improve the cutting ability of part,
Product quality is improved, the production cycle is shortened, reduces labor intensity, and it is dirty to greatly reduce environment caused by heat treatment
Dye, increases the economic benefit and social benefit of enterprise significantly.
Summary of the invention
The technical problems to be solved by the invention are in view of the above shortcomings of the prior art, to provide a kind of crank shaft blank forging
Make technique.
The technical scheme adopted by the invention is that: a kind of crank shaft blank forging technology, comprising the following steps:
(1) melting non-hardened and tempered steel；
(2) molten steel is injected in casting mould, moulding by casting crank shaft blank part；
(3) blank surface is cleared up after cooling, removes flash removed；
(4) crank shaft blank part is subjected to enclosed hot-forging die, is then cooled down to obtain crankshaft forging blank；
(5) crankshaft forging blank is detected,
(6) the qualified crankshaft forging blank of detection is sanded using sand paper；
(7) the crankshaft forging blank after sand milling is subjected to vanning transport.
Preferably, subcontracting casting using sand casting is covered in step (2).
The beneficial effects of the present invention are: the present invention provides stock utilizations, reduce die cost, reduce forging
Time is effectively improved the interior tissue and performance of part, improves its service life.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.
Embodiment
Crank shaft blank forging technology provided in this embodiment, comprising the following steps:
(1) melting non-hardened and tempered steel；
(2) molten steel is injected in casting mould, moulding by casting crank shaft blank part；
(3) blank surface is cleared up after cooling, removes flash removed；
(4) crank shaft blank part is subjected to enclosed hot-forging die, is then cooled down to obtain crankshaft forging blank；
(5) crankshaft forging blank is detected,
(6) the qualified crankshaft forging blank of detection is sanded using sand paper；
(7) the crankshaft forging blank after sand milling is subjected to vanning transport.Sand casting is covered preferably, using in step (2),
Subcontract casting.
The present invention provides stock utilizations, reduce die cost, reduce forging time, are effectively improved the interior of part
Portion's tissue and performance, improve its service life.
Claims (2)
1. a kind of crank shaft blank forging technology, it is characterised in that: the following steps are included:
(1) melting non-hardened and tempered steel；
(2) molten steel is injected in casting mould, moulding by casting crank shaft blank part；
(3) blank surface is cleared up after cooling, removes flash removed；
(4) crank shaft blank part is subjected to enclosed hot-forging die, is then cooled down to obtain crankshaft forging blank；
(5) crankshaft forging blank is detected,
(6) the qualified crankshaft forging blank of detection is sanded using sand paper；
(7) the crankshaft forging blank after sand milling is subjected to vanning transport.
2. crank shaft blank forging technology according to claim 1, it is characterised in that: using sand casting is covered in step (2), turn
Packet casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711196231.4A CN109834212A (en) | 2017-11-25 | 2017-11-25 | Crank shaft blank forging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711196231.4A CN109834212A (en) | 2017-11-25 | 2017-11-25 | Crank shaft blank forging technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109834212A true CN109834212A (en) | 2019-06-04 |
Family
ID=66878364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711196231.4A Pending CN109834212A (en) | 2017-11-25 | 2017-11-25 | Crank shaft blank forging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109834212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376004A (en) * | 2020-04-29 | 2020-07-07 | 南通奥里斯特机械有限公司 | Manufacturing process of wear-resistant crankshaft |
-
2017
- 2017-11-25 CN CN201711196231.4A patent/CN109834212A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376004A (en) * | 2020-04-29 | 2020-07-07 | 南通奥里斯特机械有限公司 | Manufacturing process of wear-resistant crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190604 |
|
| WD01 | Invention patent application deemed withdrawn after publication |