CN109622844A - A kind of forging technology of the pump housing for vent gas treatment - Google Patents
A kind of forging technology of the pump housing for vent gas treatment Download PDFInfo
- Publication number
- CN109622844A CN109622844A CN201811586338.4A CN201811586338A CN109622844A CN 109622844 A CN109622844 A CN 109622844A CN 201811586338 A CN201811586338 A CN 201811586338A CN 109622844 A CN109622844 A CN 109622844A
- Authority
- CN
- China
- Prior art keywords
- forging
- pump housing
- vent gas
- gas treatment
- heating
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
Abstract
The invention discloses a kind of forging technologies of pump housing for vent gas treatment, include the following steps: (1) slab selection, 6082 aluminum alloy material bars of long strip type are selected, then as needed by its dissection；(2) blank after dissection is put into intermediate frequency furnace and heats by induction heating, is heated to 420 DEG C -440 DEG C；(3) finish forge demoulds, and the blank after heating is put into finish forge lower die, forges accurate shape, and demould to part by forging machine ejecting mechanism；(4) part after forging is put into Automated water cold trap by water cooling, cooling 1min；(5) part after water cooling is put into shaving die, cuts overlap by trimming；(6) it is heat-treated, forging is heat-treated, two steps of solution hardening and artificial aging are divided into, wherein then solution hardening stepwise heating is carrying out water quenching to heat preservation 4h is carried out after 535 DEG C -550 DEG C, in artificial aging stepwise heating to keeping the temperature 8h after 180 DEG C.
Description
Technical field
The present invention relates to a kind of forging technologies of pump housing for vent gas treatment, belong to forging technology technical field.
Background technique
The pump housing in automobile exhaust gas processing apparatus is the core component of whole device, and working environment is severe, long service
In high temperature, corrosive gas.The part one end is the lesser cylinder of cross-sectional area, and the other end is that cross-sectional area is biggish
Squarish, and there are two higher-height boss for part side, the product variation of part longitudinal cross-section is big, and there are two high for side
Higher boss is spent, punching deficiency is easy to appear in forging process, it is big to forge difficulty for the defect of folding.
The material of this part is 6082 aluminium alloys, which belongs to heat-treatable strengthened aluminium alloy, forgeability and resistance to
Corrosive nature is good, but its forging temperature section is narrow, is not suitable for the more forgings of a fire, and a fire one is mostly used to forge, special due to this part
Shape, the one extremely difficult molding of forging of a fire, and matter is soft at high temperature for aluminium alloy, trimming is difficult after forging, is easy cutting to get off.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of forging technologies of pump housing for vent gas treatment, by adopting
It with unique blank shape, is forged using a fire one, one-pass molding, no forging defect generates, good forming effect, and after increasing forging
Water cooling process, trimming is difficult after successfully solving the problems, such as forging.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of forging technology of the pump housing for vent gas treatment, includes the following steps:
(1) slab selection selects 6082 aluminum alloy material bars of long strip type, then as needed by its dissection；
(2) blank after dissection is put into intermediate frequency furnace and heats by induction heating, is heated to 420 DEG C -440 DEG C；
(3) finish forge demoulds, and the blank after heating is put into finish forge lower die, forges accurate shape, and eject by forging machine
Mechanism demoulds part；
(4) part after forging is put into Automated water cold trap by water cooling, cooling 1min；
(5) part after water cooling is put into shaving die, cuts overlap by trimming；
(6) it is heat-treated, forging is heat-treated, is divided into two steps of solution hardening and artificial aging, wherein solution hardening rank
Section carries out heat preservation 4h after being heated to 535 DEG C -550 DEG C, is then carrying out water quenching, in artificial aging stepwise heating to protecting after 180 DEG C
Warm 8h.
The forging technology of a kind of pump housing for vent gas treatment above-mentioned, it is characterised in that: selected in the step (1)
The section of aluminium alloy bar is " convex " font, and nose width 50mm, rear width 73mm, the charge length after dissection is
80mm。
The forging technology of a kind of pump housing for vent gas treatment above-mentioned, it is characterised in that: in the step (3), in essence
The bottom plate of forging lower die die cavity is provided with gas vent, in precision forging process, is convenient for effectively excluding gas using gas vent.
A kind of forging technology of pump housing for vent gas treatment above-mentioned, it is characterised in that: solution hardening rank in step (6)
Section carries out heat preservation 4h after being heated to 550 DEG C, guarantee the whole uniformity of hardness after part heat treatment, soft spots is avoided to generate.
A kind of forging technology of pump housing for vent gas treatment above-mentioned, it is characterised in that: intermediate frequency sense in the step (2)
The heating temperature for answering furnace is 430 DEG C.
The forging technology of a kind of pump housing for vent gas treatment above-mentioned, it is characterised in that: by solid in the step (6)
Hardness HB > 90 of part after molten quenching and two steps of artificial aging.
The beneficial effects of the present invention are: being forged using a fire one, one-pass molding, no forging by using unique blank shape
Defect generation, good forming effect are made, and increases water cooling process after forging, trimming is difficult after successfully solving the problems, such as forging.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
A kind of forging technology of the pump housing for vent gas treatment includes the following steps: (1) slab selection, selects long strip type
6082 aluminum alloy material bars, then as needed by its dissection；(2) blank after dissection is put into intermediate frequency by induction heating
It is heated in induction furnace, is heated to 420 DEG C -440 DEG C；(3) finish forge demoulds, and the blank after heating is put into finish forge lower die,
Accurate shape is forged, and part is demoulded by forging machine ejecting mechanism；(4) part after forging is put by water cooling
In Automated water cold trap, cooling 1min；(5) part after water cooling is put into shaving die, cuts overlap by trimming；(6) at heat
Reason, is heat-treated forging, is divided into two steps of solution hardening and artificial aging, wherein solution hardening stepwise heating to 535
Heat preservation 4h is carried out after DEG C -550 DEG C, is then carrying out water quenching, in artificial aging stepwise heating to keeping the temperature 8h after 180 DEG C.
Wherein, the section of the aluminium alloy bar selected in the step (1) is " convex " font, nose width 50mm, after
End width is 73mm, and the charge length after dissection is 80mm, by selecting section for the bar of " convex " font, and after dissection
Size as described above, shape and size all relatively forge after part size and shape, to make the blank by one
Fire one is forged, one-pass molding, and no forging defect generates, good forming effect.
Medium frequency induction stove heating blank is to 430 ± 10 DEG C in step (2), in order to enable aluminum alloy to have as far as possible in forging
There is single phase, to improve process plastic and Reducing distortion drag, while avoiding overheat and burning, the present invention is in the heating period
Equipped with the control of special temperature and detection device, convenient for control heating temperature, wherein pass through multiple repetition test, by intermediate frequency sense
Answer the heating and temperature control of stove heating at 430 DEG C, final product quality is best.
In step (3), the bottom plate of finish forge lower die die cavity is provided with gas vent, in precision forging process, just using gas vent
In effectively excluding gas, guarantee that die cavity depths can fill completely.
Solution hardening stepwise heating is to heat preservation 4h is carried out after 550 DEG C in step (6), guarantees the whole of hardness after part heat treatment
Body uniformity, avoids soft spots from generating.Material this for 6082 aluminium alloys, in the solution hardening stage in order to guarantee the Mg in material
Element can be sufficiently dissolved into matrix, guaranteed the whole uniformity of hardness after part heat treatment, avoided the generation of soft spots, add
Hot temperature is increased to 550 DEG C by 535 DEG C.Pass through hardness HB > 90 of part after two steps of solution hardening and artificial aging.
In conclusion a kind of forging technology of pump housing for vent gas treatment provided by the invention, by using unique
Blank shape is forged using a fire one, and one-pass molding, no forging defect generates, good forming effect, and increases water cooling work after forging
Sequence, trimming is difficult after successfully solving the problems, such as forging.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Boundary.
Claims (6)
1. a kind of forging technology of the pump housing for vent gas treatment, characterized by the following steps:
(1) slab selection selects 6082 aluminum alloy material bars of long strip type, then as needed by its dissection；
(2) blank after dissection is put into intermediate frequency furnace and heats by induction heating, is heated to 420 DEG C -440 DEG C；
(3) finish forge demoulds, and the blank after heating is put into finish forge lower die, forges accurate shape, and eject by forging machine
Mechanism demoulds part；
(4) part after forging is put into Automated water cold trap by water cooling, cooling 1min；
(5) part after water cooling is put into shaving die, cuts overlap by trimming；
(6) it is heat-treated, forging is heat-treated, is divided into two steps of solution hardening and artificial aging, wherein solution hardening rank
Section carries out heat preservation 4h after being heated to 535 DEG C -550 DEG C, is then carrying out water quenching, in artificial aging stepwise heating to protecting after 180 DEG C
Warm 8h.
2. a kind of forging technology of pump housing for vent gas treatment according to claim 1, it is characterised in that: the step
(1) section of the aluminium alloy bar selected in is " convex " font, nose width 50mm, rear width 73mm, after dissection
Charge length is 80mm.
3. a kind of forging technology of pump housing for vent gas treatment according to claim 1, it is characterised in that: the step
(3) in, the bottom plate of finish forge lower die die cavity is provided with gas vent, in precision forging process, is convenient for using gas vent gas is effective
It excludes.
4. a kind of forging technology of pump housing for vent gas treatment according to claim 1, it is characterised in that: step (6)
Middle solution hardening stepwise heating guarantees the whole uniformity of hardness after part heat treatment, avoids soft to heat preservation 4h is carried out after 550 DEG C
Point generates.
5. a kind of forging technology of pump housing for vent gas treatment according to claim 1, it is characterised in that: the step
(2) heating temperature of intermediate frequency furnace is 430 DEG C in.
6. a kind of forging technology of pump housing for vent gas treatment according to claim 4, it is characterised in that: the step
(6) pass through hardness HB > 90 of part after two steps of solution hardening and artificial aging in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586338.4A CN109622844A (en) | 2018-12-25 | 2018-12-25 | A kind of forging technology of the pump housing for vent gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586338.4A CN109622844A (en) | 2018-12-25 | 2018-12-25 | A kind of forging technology of the pump housing for vent gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622844A true CN109622844A (en) | 2019-04-16 |
Family
ID=66077048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811586338.4A Pending CN109622844A (en) | 2018-12-25 | 2018-12-25 | A kind of forging technology of the pump housing for vent gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110229981A (en) * | 2019-06-25 | 2019-09-13 | 航桥新材料科技（滨州）有限公司 | A kind of method of the straight type propulsion rod joint forging molding of aluminium alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09249951A (en) * | 1996-03-12 | 1997-09-22 | Nippon Light Metal Co Ltd | Production of aluminum forged product having fine structure |
| CN106180500A (en) * | 2016-07-19 | 2016-12-07 | 苏州誉衡昌精密机械有限公司 | A kind of Forging Technology of square precision workpiece |
| CN107391779A (en) * | 2016-05-17 | 2017-11-24 | 中国科学院金属研究所 | A kind of blank shape design method of die forging crankshaft of diesel engine |
| CN107955893A (en) * | 2017-12-01 | 2018-04-24 | 宁波拓普汽车电子有限公司 | A kind of method for forging and molding of aluminium alloy knuckle |
| CN108405773A (en) * | 2018-04-04 | 2018-08-17 | 武汉理工大学 | A kind of lightweight aluminum alloy chassis part processing method |
| CN108580779A (en) * | 2018-07-27 | 2018-09-28 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
-
2018
- 2018-12-25 CN CN201811586338.4A patent/CN109622844A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09249951A (en) * | 1996-03-12 | 1997-09-22 | Nippon Light Metal Co Ltd | Production of aluminum forged product having fine structure |
| CN107391779A (en) * | 2016-05-17 | 2017-11-24 | 中国科学院金属研究所 | A kind of blank shape design method of die forging crankshaft of diesel engine |
| CN106180500A (en) * | 2016-07-19 | 2016-12-07 | 苏州誉衡昌精密机械有限公司 | A kind of Forging Technology of square precision workpiece |
| CN107955893A (en) * | 2017-12-01 | 2018-04-24 | 宁波拓普汽车电子有限公司 | A kind of method for forging and molding of aluminium alloy knuckle |
| CN108405773A (en) * | 2018-04-04 | 2018-08-17 | 武汉理工大学 | A kind of lightweight aluminum alloy chassis part processing method |
| CN108580779A (en) * | 2018-07-27 | 2018-09-28 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110229981A (en) * | 2019-06-25 | 2019-09-13 | 航桥新材料科技（滨州）有限公司 | A kind of method of the straight type propulsion rod joint forging molding of aluminium alloy |
| CN110229981B (en) * | 2019-06-25 | 2021-04-20 | 航桥新材料科技（滨州）有限公司 | Forging forming method for aluminum alloy straight thrust rod joint |
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Application publication date: 20190416 |