CN103753101B - The hot straightening method of die-casting blank of a kind of immersion type and device - Google Patents
The hot straightening method of die-casting blank of a kind of immersion type and device Download PDFInfo
- Publication number
- CN103753101B CN103753101B CN201410020164.0A CN201410020164A CN103753101B CN 103753101 B CN103753101 B CN 103753101B CN 201410020164 A CN201410020164 A CN 201410020164A CN 103753101 B CN103753101 B CN 103753101B
- Authority
- CN
- China
- Prior art keywords
- orthopedic
- die
- hot
- cooling water
- water tank
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The present invention relates to casting technology field, disclose the hot straightening method of die-casting blank of a kind of immersion type, comprise the following steps: (1) foundry goods that temperature is 200 DEG C～300 DEG C is put into orthopedic brace is carried out orthopedic；(2) orthopedic brace is dipped in cooling water quickly cooling and shaping together with foundry goods.The invention also discloses the hot orthotic device of die-casting blank of a kind of immersion type.The present invention utilizes aluminum alloy die casting in the hot characteristic that lower intensity is low, toughness is high, uses the mode of cold water soak to cool down, reach the purpose of fast shaping while orthopedic force applies.Die-casting blank through hot orthopedic after, internal stress is little, and resilience will not occur.Orthopedic parameter eliminates the factor of " people ", it is possible to achieve the control of orthopedic parameter and adjustment, it is ensured that the concordance of orthopedic effect.The labor intensity of workman can be alleviated simultaneously, improve production efficiency.
Description
Technical field
The present invention relates to casting technology field, the hot orthopedic side of die-casting blank of a kind of immersion type
Method and device.
Background technology
The environmental protection pressure of energy-saving and emission-reduction in recent years promotes automobile to light-weighted trend development so that automobile aluminum
Die casting parts are integrated to function, structure complicates and the light-weighted direction of weight is drawn close.Many die casting
Aluminium alloy part seldom considers that when initial design casting manufacturability causes its structure complexity, wall thickness variation
Greatly, required precision is high, to die-casting technique exploitation and produce and bring the biggest challenge.Particularly wall unevenness
There is the defect that deformation is serious in product even, irregular structure.In actual production, by Design of Dies and
The methods such as the adjustment of extrusion process, it is impossible to the problem being fully solved casting deformation, need by follow-up orthopedic
Technique is corrected.
The orthopedic of foundry goods at present has mainly manually been beaten.This technique is to take in die casting machine at foundry goods
After going out, removal overflow launder and running channel carry out orthopedic after naturally cooling to room temperature.The advantage of this technique is operation spirit
Living, do not limited by place, fund input is low.Exactly because but the most orthopedic factor that there is " people ",
Causing orthopedic force unstable, orthopedic rear product plane degree concordance is poor, product is easily struck to split scraps, produces
Cycle is long.Owing to, in orthopaedic procedures, external force constantly beats foundry goods so that cast-internal stress distribution is uneven,
The flatness detecting foundry goods after orthopedic at short notice is qualified, places a period of time, and internal stress release causes
There is resilience in deformation.
Summary of the invention
The problem that the present invention is directed to above-mentioned existence, it is provided that the hot orthopedic side of die-casting blank of a kind of immersion type
Method, utilizes pack alloy part (200 DEG C～300 DEG C) feature that intensity is low, toughness is high under hot to carry out
Hot orthopedic, simultaneously with cooling water soaking foundry goods in orthopaedic procedures, make foundry goods fast quickly cooling while correcting
But shape.
The present invention for achieving the above object, takes techniques below scheme to be achieved:
The hot straightening method of die-casting blank of a kind of immersion type, comprises the following steps:
(1) foundry goods that temperature is 200 DEG C～300 DEG C is put into orthopedic brace is carried out orthopedic；
(2) orthopedic brace is dipped in cooling water quickly cooling and shaping together with foundry goods.
The temperature that general foundry goods has just processed can meet orthopedic requirement, it is not necessary to additionally heats.
Preferably, time orthopedic, the dwell time is 15s, and dwell pressure is 5Mpa.
Preferably, the temperature of described cooling water is less than 45 DEG C.General cooling water temperature selects 25～45 DEG C,
Lower the temperature without extra consumed energy, also do not interfere with orthopedic effect.
Another object of the present invention is to provide the hot orthotic device of die-casting blank of a kind of immersion type, including machine
Frame, described frame is provided with the orthopedic brace being made up of with lower clamp assembly upper clamp assembly and is arranged on orthopedic folder
Water tank below tool；Described lower clamp assembly hangs and is fixed on frame, and described upper clamp assembly liftably sets
Put above lower clamp assembly；Described tank top is uncovered and be liftable structure.When water tank rises, rectify
Clamp is immersed in below water tank level.
Preferably, described lower clamp assembly includes base plate, the clamp base being arranged on base plate top and is arranged on
The support column of several height-adjustable in clamp base, described base plate is hanged with frame top by connecting rod
Hang and connect.The effect of lower clamp assembly is to fix to treat orthopedic foundry goods, and location mode can be according to different foundry goods
Structure use profile location or hole location.Support column is to need orthopedic plane to arrange according to foundry goods
, its role is to support relevant position, foundry goods bottom surface, and default bearing height, when the big plane of foundry goods each
The flatness at position exceedes in claimed range, it is only necessary to adjust the support column height of corresponding site so that it is plane
Degree meets the requirements.Support column lower end can be connected with clamp base by screw thread, convenient adjustment height.
Preferably, described upper clamp assembly includes top board and is arranged on several compression pressure heads bottom top board,
Described compression pressure head and support column one_to_one corresponding, compress pressure head every a pair and be in same vertical line with support column
On；Described frame top is provided with cylinder, and cylinder push-rod is connected with top board, is additionally provided with and leads between top board and frame
To structure.Pressing under cylinder, upper clamp assembly can produce orthopedic force to fixing foundry goods on the support columns.
Conform on support column to ensure that the relevant position of foundry goods can be compressed by each compression pressure head simultaneously,
Compress pressure head be designed as elastic compression pressure head, including the guide pin bushing being connected with top board, pressure head and be arranged on pressure head and
Spring between guide pin bushing.
Preferably, described water tank is connected with bottom frame by cylinder, bottom described water tank and frame between and also
It is provided with guiding mechanism.
Preferably, described water tank is provided with cooling water temperature automatic control system, this system include temperature sensor,
Source of the gas, for supplying the cooling water inlet of cooling water, for discharging the cooling coolant outlet of water and controller；
Described temperature sensor is multiple, is arranged on diverse location in water tank；Described source of the gas is at the bottom of by trachea and water tank
Portion connects, and is provided with several bronchus, is provided with electromagnetism between water tank and source of the gas between water tank and trachea
Valve one；Described cooling water inlet and coolant outlet are separately positioned on water tank both sides, and cooling water inlet height is low
In coolant outlet height, cooling water inlet and coolant outlet are respectively arranged with electromagnetic valve two and electromagnetic valve
Three；Described temperature sensor, electromagnetic valve one, electromagnetic valve two and electromagnetic valve three are all connected with controller.
Preferably, connect between described coolant outlet and cooling water inlet and be linked to be a loop, on this loop
It is provided with chiller.Can the water that coolant outlet flows out be passed through cold after apparatus for supercooling cooling processes
But, during water inlet is supplied to water tank, water resource is recycled.
Beneficial effects of the present invention is as follows:
The characteristic that the present invention utilizes that aluminum alloy die casting is low in hot lower intensity, toughness is high, executes at orthopedic force
The mode using cold water soak while adding cools down, and reaches the purpose of fast shaping.Die-casting blank passes through
Hot orthopedic after, internal stress is little, and resilience will not occur.Orthopedic parameter eliminates the factor of " people ",
Control and the adjustment of orthopedic parameter can be realized, it is ensured that the concordance of orthopedic effect.Can alleviate workman's simultaneously
Labor intensity, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hot device of straightening of die-casting blank of immersion type of the present invention；
Fig. 2 is the structural representation that Elastic of the present invention compresses pressure head；
Fig. 3 is the structural representation of water tank cooling water temperature automatic control system in the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
See the hot orthotic device of die-casting blank of Fig. 1～3: a kind of immersion type, including frame 1, frame 1
It is provided with the orthopedic brace being made up of with lower clamp assembly upper clamp assembly and is arranged on the water below orthopedic brace
Case 3；Lower clamp assembly hangs and is fixed on frame 1, and upper clamp assembly is liftably arranged on lower clamp assembly
Top；Water tank 3 open top and be liftable structure.Orthopedic brace clamps foundry goods 10 and is foundry goods 10
Orthopedic force is provided；When water tank 3 rises, orthopedic brace is immersed in below water tank 3 liquid level, so that clamping
The quick cooling and shaping of foundry goods 10 in orthopedic brace.
Lower clamp assembly includes base plate 4, the clamp base 5 being arranged on base plate 4 top and is arranged on fixture base
The support column 11 of several height-adjustable on seat 5, base plate 4 is by connecting rod 12 and frame 1 top
Hang and connect.The effect of lower clamp assembly is to fix to treat orthopedic foundry goods 10, and location mode can be according to not
Profile location or location, hole is used with the structure of foundry goods.Support column 11 needs orthopedic according to foundry goods 10
Plane is arranged, its role is to support relevant position, foundry goods 10 bottom surface, and default bearing height, when
The flatness at big each position of plane of foundry goods 10 exceedes in claimed range, it is only necessary to adjust propping up of corresponding site
Dagger 11 height so that it is flatness meets the requirements.Screw thread and clamp base can be passed through in support column 11 lower end
5 connect, convenient adjustment height.
Upper clamp assembly includes top board 6 and is arranged on several compression pressure heads 9 bottom top board 6, compresses pressure
9 with support column 11 one_to_one corresponding, compress pressure head 9 every a pair and be on same vertical line with support column 11；
Frame 1 top is provided with cylinder 7, and the push rod of cylinder 7 is connected with top board 6, between top board 6 and frame 1 also
It is provided with guide frame 8.Cylinder is pressed for 7 times, and upper clamp assembly can be to the foundry goods being fixed on support column 11
10 produce orthopedic force.
See Fig. 2, in order to ensure that the relevant position of foundry goods 10 can be compressed patch by each compression pressure head 9 simultaneously
Be bonded on support column 11, compress pressure head 9 be designed as elastic compression pressure head, including with leading that top board 6 is connected
Set 16, pressure head 14 and the spring 15 being arranged between pressure head 14 and guide pin bushing 16, guide pin bushing presses through journey 16 times
In have spring 15 to buffer, and pressure is delivered to pressure head 14, drive ram by spring 15 by guide pin bushing 16
14 bottom surfaces compressing product 10 conform on each support column 11.
Water tank 3 is connected bottom frame 1 by cylinder 2, bottom water tank 3 and frame 1 between be additionally provided with and lead
To mechanism 13, cylinder 2 can drive water tank 3 rise and fall campaign.
After single-piece is orthopedic, due to casting thickness skewness, the heat that the cooling water of diverse location absorbs is not
Cause water tank 3 inner cooling water temperature field uneven together, affect orthopedic effect.Water tank 3 is provided with coolant water temperature
Degree automatic control system.Seeing Fig. 3, cooling water temperature automatic control system includes temperature sensor 31, gas
Source 32, for supply cooling water cooling water inlet 33, for discharge cooling water coolant outlet 34
With controller (not indicating)；Temperature sensor 31 is multiple, is arranged on diverse location in water tank 3；Source of the gas
32 are connected bottom water tank 3 by trachea 35, are provided with several gas between water tank 3 and trachea 35
Pipe 36, is provided with electromagnetic valve 1 between water tank 3 and source of the gas 32；Cooling water inlet 33 and cooling water
Outlet 34 is separately positioned on water tank 3 both sides, and cooling water inlet 33 height is less than coolant outlet 34 height,
Cooling water inlet 33 and coolant outlet 34 are respectively arranged with electromagnetic valve 2 38 and electromagnetic valve 3 39；Temperature
Sensor 31, electromagnetic valve 1, electromagnetic valve 2 38 and electromagnetic valve 3 39 are all connected with controller.Work as temperature
When the temperature gap that degree sensor 31 records is beyond setting value, electromagnetic valve 1 is opened, and source of the gas 32 is to water
Case 3 is passed through compressed air, from water tank 3 bottom blowing bubbling, makes cooling water temperature uniform.After the most orthopedic,
Due to the transmission of heat, cause water temperature in water tank 3 to raise, cause foundry goods cooldown rate to there are differences, indirectly
Affect orthopedic effect.When the water temperature cooling down water is higher than the temperature upper limit set, electromagnetic valve 2 38 and electricity
Magnet valve 3 39 is opened, and cooling water flows to water tank 3 from cooling water inlet 33, and unnecessary cooling water is from cooling water
Outlet 34 outflow, it is ensured that water tank 3 liquid level is constant.Meanwhile, electromagnetic valve 1 is opened, source of the gas 32
It is passed through compressed air to water tank 3, from water tank 3 bottom blowing bubbling, makes cooling water temperature uniform.The most anti-
Multiple circulation, maintains coolant water temperature within the scope of reasonably.
Connect between coolant outlet 34 with cooling water inlet 33 and be linked to be a loop, this loop is provided with
Chiller 40.The water that can be flowed out by coolant outlet 34 is logical after apparatus for supercooling 40 cooling processes
Supercooled water entrance 34 is supplied in water tank 3, recycles water resource.
The characteristic that the present invention utilizes that aluminum alloy die casting is low in hot lower intensity, toughness is high, executes at orthopedic force
The mode using cold water soak while adding cools down, and reaches the purpose of fast shaping.Die-casting blank passes through
Hot orthopedic after, internal stress is little, and resilience will not occur.Orthopedic parameter eliminates the factor of " people ",
Control and the adjustment of orthopedic parameter can be realized, it is ensured that the concordance of orthopedic effect.Can alleviate workman's simultaneously
Labor intensity, improves production efficiency.
Embodiment 2
The hot straightening method of die-casting blank of a kind of immersion type, uses device described in embodiment 1, including following
Step:
(1) foundry goods that temperature is 200 DEG C～300 DEG C is put into orthopedic brace is carried out orthopedic；
(2) orthopedic brace is dipped in cooling water quickly cooling and shaping together with foundry goods.
The temperature that general foundry goods has just processed can meet orthopedic requirement, it is not necessary to additionally heats.
Time orthopedic, the dwell time is 15s, and dwell pressure is 5Mpa.
The temperature of described cooling water is less than 45 DEG C.General cooling water temperature selects 25～45 DEG C, it is not necessary to volume
Outer consumed energy is lowered the temperature, and does not also interfere with orthopedic effect.
The hot straightening method of immersion type according to the present invention and relevant apparatus, in 9000KN horizontal cold room pressure
The front cover shell that the aluminum material trade mark is ADC12 produced on casting machine has carried out orthopedic.Before orthopedic beginning, detection is relevant
Orthopedic parameter, wherein coolant water temperature 25 DEG C, dwell time 15s, dwell pressure 5Mpa.In above work
Under the conditions of skill, front cover shell part is carried out orthopedic.After the most orthopedic 10, the flatness of die-casting blank is little
In 0.5mm, having reached design object value, and the flatness fluctuation between blank is less, flatness compares
Stable.Now water temperature rises to 30 DEG C, through the production discovery water temperature of continuous print below more than 50 DEG C,
Under conditions of not changing other parameters, the flatness of die-casting blank occurs in that fluctuation, so according to reality
Effect, sets the upper limit of coolant water temperature as 45 DEG C.The cycle of operation measured in orthopaedic procedures continuously is
35s, the 98s that the artificial section straightening manual detection flatness comparing conventional needs, production efficiency improves closely
2 times.
Only as described above, only the preferred embodiments of the invention, when can not with this limit the present invention it
Scope, the most generally according to equivalence change simple done by the content described in the claims in the present invention and description
With modification, all it is still covered by the claims of the invention.Additionally, summary part and title are only
It is used for assisting patent document search to be used, is not used for limiting the interest field of the present invention.
Claims (6)
1. the hot orthotic device of the die-casting blank of immersion type, including frame, it is characterised in that described
Frame is provided with the orthopedic brace being made up of with lower clamp assembly upper clamp assembly and is arranged on below orthopedic brace
Water tank；Described lower clamp assembly hangs and is fixed on frame, and described upper clamp assembly is liftably arranged on down
Above clamp assembly；Described tank top is uncovered and be liftable structure；
Described water tank is provided with cooling water temperature automatic control system, this system include temperature sensor, source of the gas,
For supplying the cooling water inlet of cooling water, for discharging coolant outlet and the controller of cooling water；Described
Temperature sensor is multiple, is arranged on diverse location in water tank；Described source of the gas is by trachea with water tank bottom even
Logical, it is provided with several bronchus between water tank and trachea, between water tank and source of the gas, is provided with electromagnetic valve one；
Described cooling water inlet and coolant outlet are separately positioned on water tank both sides, and cooling water inlet height is less than cooling
Water out height, cooling water inlet and coolant outlet are respectively arranged with electromagnetic valve two and electromagnetic valve three；Described
Temperature sensor, electromagnetic valve one, electromagnetic valve two and electromagnetic valve three are all connected with controller.
The hot orthotic device of die-casting blank of a kind of immersion type the most according to claim 1, its feature
Being, described lower clamp assembly includes base plate, the clamp base being arranged on base plate top and is arranged on fixture base
The support column of several height-adjustable on seat, described base plate is hung even with frame top by connecting rod
Connect.
The hot orthotic device of die-casting blank of a kind of immersion type the most according to claim 2, its feature
Being, described upper clamp assembly includes top board and is arranged on several compression pressure heads bottom top board, described pressure
Press head and support column one_to_one corresponding, compress pressure head every a pair and be on same vertical line with support column；Described
Frame top is provided with cylinder, and cylinder push-rod is connected with top board, is additionally provided with guide frame between top board and frame.
The hot orthotic device of die-casting blank of a kind of immersion type the most according to claim 3, its feature
Being, described compression pressure head is elastic compression pressure head, including the guide pin bushing being connected with top board, pressure head be arranged on
Spring between pressure head and guide pin bushing.
5. according to the hot orthotic device of die-casting blank of a kind of immersion type described in claim 1 or 3, its
Being characterised by, described water tank is connected with bottom frame by cylinder, bottom described water tank and frame between also set
There is guiding mechanism.
The hot orthotic device of die-casting blank of a kind of immersion type the most according to claim 1, its feature
It is, connects between described coolant outlet and cooling water inlet and be linked to be a loop, this loop is provided with
Chiller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020164.0A CN103753101B (en) | 2014-01-16 | 2014-01-16 | The hot straightening method of die-casting blank of a kind of immersion type and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020164.0A CN103753101B (en) | 2014-01-16 | 2014-01-16 | The hot straightening method of die-casting blank of a kind of immersion type and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103753101A CN103753101A (en) | 2014-04-30 |
| CN103753101B true CN103753101B (en) | 2016-08-24 |
Family
ID=50520502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020164.0A Active CN103753101B (en) | 2014-01-16 | 2014-01-16 | The hot straightening method of die-casting blank of a kind of immersion type and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103753101B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016198816A (en) * | 2015-04-14 | 2016-12-01 | トヨタ自動車株式会社 | Processing treatment method of casting |
| CN105057403B (en) * | 2015-07-31 | 2017-03-08 | 广东欧珀移动通信有限公司 | A kind of die casting shaping methods and mould and die casting |
| CN108620565A (en) * | 2018-07-06 | 2018-10-09 | 湖州吉弘机械有限公司 | A kind of cooling device for the mating casting of fork truck |
| CN110918685A (en) * | 2019-11-20 | 2020-03-27 | 嘉丰工业科技（惠州）有限公司 | Die pressing shape-righting method for magnesium alloy ultrathin notebook computer shell die casting |
| CN115229507A (en) * | 2022-06-27 | 2022-10-25 | 浙江万鼎精密科技股份有限公司 | High-load low-loss driven wheel machining equipment and machining method thereof |
| CN116638061B (en) * | 2023-06-14 | 2023-11-21 | 广州市型腔模具制造有限公司 | Die casting size deformation control method for new energy automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480696A (en) * | 2008-01-11 | 2009-07-15 | 中国科学院金属研究所 | Method for preparing high-temperature alloy thin-section casting |
| CN201470862U (en) * | 2009-08-19 | 2010-05-19 | 曹佩荣 | Up-draw shaping device of hot-dip coating copper-clad steel |
| CN201880888U (en) * | 2010-10-29 | 2011-06-29 | 何学才 | Concentrated underdrive tension leveler with heat preservation device |
| CN103240337A (en) * | 2013-05-10 | 2013-08-14 | 西安航空动力股份有限公司 | Correction die and method for support casting of guide vane margin plate of turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008139184A (en) * | 2006-12-04 | 2008-06-19 | Denso Corp | Inspection method of microgap groove possessing matter and correction method of matter |
-
2014
- 2014-01-16 CN CN201410020164.0A patent/CN103753101B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480696A (en) * | 2008-01-11 | 2009-07-15 | 中国科学院金属研究所 | Method for preparing high-temperature alloy thin-section casting |
| CN201470862U (en) * | 2009-08-19 | 2010-05-19 | 曹佩荣 | Up-draw shaping device of hot-dip coating copper-clad steel |
| CN201880888U (en) * | 2010-10-29 | 2011-06-29 | 何学才 | Concentrated underdrive tension leveler with heat preservation device |
| CN103240337A (en) * | 2013-05-10 | 2013-08-14 | 西安航空动力股份有限公司 | Correction die and method for support casting of guide vane margin plate of turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103753101A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103753101B (en) | The hot straightening method of die-casting blank of a kind of immersion type and device | |
| CN102581195A (en) | Steel die assembly joint bolt forming production method and combined forming die for steel die assembly joint bolt forming | |
| CN107803478A (en) | A kind of horizontal plunger die casting machine | |
| CN210974790U (en) | Quenching cooling device for hot work die | |
| CN106181225A (en) | A kind of automatic bushing device of drawing die | |
| CN205732569U (en) | A kind of cooling mould for manufacturing automobile frame stamping parts | |
| CN204897980U (en) | Quench with forced air cooling bucket | |
| CN207272137U (en) | A kind of die casting temperature-adjusting device | |
| CN207952583U (en) | A kind of amorphous alloy die-casting device | |
| CN206622559U (en) | A kind of full-automatic nut forging and forming device | |
| CN207401963U (en) | A kind of electric vehicle metal plate punching device | |
| CN107052123B (en) | A kind of metal tube part thermal state metal air-pressure forming method | |
| CN107363121B (en) | A kind of production method of surface imitation wood line aluminium alloy building-material | |
| CN205057005U (en) | Forging die | |
| CN110405174A (en) | A kind of novel cold-chamber die casting machine | |
| CN208033434U (en) | A kind of car front-upper bracket steel plate mold with quickly cooling device | |
| CN107570614A (en) | Hydraulic pressure pipe-expanding device | |
| CN210184694U (en) | Toe cap shaping equipment that colds presses | |
| CN109317552A (en) | A kind of production technology of surface imitation wood line aluminium alloy building-material | |
| CN208495595U (en) | A kind of semi-automatic necking machine of air-conditioning pipe fitting processing | |
| CN207238966U (en) | Hydraulic pressure pipe-expanding device | |
| CN208033546U (en) | A kind of slip shaft yoke base mould forced locking device | |
| CN207057298U (en) | Withdrawing pattern seat and drawbench | |
| CN112247040A (en) | Method and device for rapidly forging large steel ingot | |
| KR20110097524A (en) | Press mold apparatus and method for cooling using thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |