CN106111717B - A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and its mould of reparation - Google Patents
A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and its mould of reparation Download PDFInfo
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- CN106111717B CN106111717B CN201610488217.0A CN201610488217A CN106111717B CN 106111717 B CN106111717 B CN 106111717B CN 201610488217 A CN201610488217 A CN 201610488217A CN 106111717 B CN106111717 B CN 106111717B
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- bridge
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- restorative procedure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/10—Making tools by operations not covered by a single other subclass
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Abstract
The present invention provides a kind of aluminium alloy extrusion mould and splits the restorative procedure of bridge and its mould of reparation, and the restorative procedure includes：S1) groove milling；S2) preheat；S3) built-up welding；S4) skiving；S5 support plate) is added；S6) heavy bridge；S7) quench.The aluminium alloy extrusion mould splits the restorative procedure of bridge and its mould of reparation, in the groove milling of bridge location cracks and carry out after built-up welding fills up,, can be while rift defect be repaired, it is ensured that the support strength of mould bridge location by adding support plate and synchronous welding in bridge location both sides；In addition, also sinking bridge and chamfering by real-time taper, to improve metal flow, bridge location stress is further reduced.The mould of restorative procedure reparation using the present invention, not only bridge location consolidates, the service life of mould extends, but also extrusion process is stablized, and product moulding degree is good.
Description
Technical field
The present invention relates to the recovery technique neck of aluminium alloy production equipment technology, more particularly to aluminium alloy extrusion mould
Domain.
Background technology
Aluminium alloy extrusion mould in use, often due to bearing the support strength of larger pressure or bridge not
It is enough, and produce and split bridge.In production, the aluminium alloy extrusion mould for there is splitting bridge generally uses the method for repairing and mending of weld crack,
I.e. by around mould crack groove milling, built-up welding come repairing mould.Although this method can repair rift defect, mould
Intensity substantially reduce, can not return to mould it is intact when intensity, thus pole is all caused to the service life and effect of mould
Big influence.
The content of the invention
Present invention seek to address that problem as described above.It is an object of the present invention to provide a kind of solution problem above
A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge.Specifically, while present invention offer can repair bridge location crack, it is ensured that
The restorative procedure of mould strength and its mould of reparation.
According to the first aspect of the invention, the present invention provides the restorative procedure that a kind of aluminium alloy extrusion mould splits bridge, institute
Stating restorative procedure includes：S1) groove milling：In bridge location cracks milling groove；S2) preheat：Mould is added with the first predetermined temperature
Hot first scheduled time；S3) built-up welding：With welding rod built-up welding, the groove is filled up, and weld is repaired；S4) skiving：
By the predetermined skiving thickness of both sides skiving of the bridge location where built-up welding；S5 support plate) is added：Support plate is chosen, is covered in the bridge
Position both sides, and carry out reinforcement of weld；S6) heavy bridge：Implement heavy bridge in the bridge location feeding mouth end face, and heavy bridge floor is fallen
Angle, forms decompression angle；S7) quench：The processing of second scheduled time of heating is carried out to mould with the second predetermined temperature, then into sector-style
It is cold.
Wherein, the depth of the groove is more than or equal to the depth of the bridge location crackle.
Wherein, first predetermined temperature is 280 DEG C~320 DEG C, when first scheduled time is 4.5~6.0 small.
Wherein, the width of the support plate be less than the bridge location 1~3mm of width, the thickness of the support plate with it is described
Predetermined skiving thickness is equal, is 3~15mm.
Wherein, the heavy bridge sinks bridge for taper, and the cone bottom depth of the heavy bridge be 10~40mm, and the decompression angle is 10 °
~25 °.
Wherein, second predetermined temperature is 280 DEG C~320 DEG C, when second scheduled time is 2.5~3.5 small.
According to another aspect of the present invention, present invention also offers a kind of mould repaired using restorative procedure as described above
Having, the support plate is provided with the bridge location of the mould, the width of the support plate is less than 1~3mm of width of the bridge location,
The bridge location feeding mouth end face is provided with heavy bridge, and the heavy bridge floor of the heavy bridge is provided with decompression angle.
Wherein, the heavy bridge is pyramidal structure, and the depth at the cone bottom of the heavy bridge is 10~40mm.
Wherein, the decompression angle is 10 °~25 °.
The aluminium alloy extrusion mould of the present invention splits the restorative procedure of bridge and its mould of reparation, in the groove milling of bridge location cracks simultaneously
, can be while rift defect be repaired, really by adding support plate and synchronous welding in bridge location both sides after progress built-up welding is filled up
Protect the support strength of mould bridge location；In addition, also sinking bridge and chamfering by real-time taper, to improve metal flow, further subtract
Few bridge location stress.The mould of restorative procedure reparation using the present invention, not only bridge location consolidates, the service life of mould extends, and
And extrusion process is stablized, product moulding degree is good.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical solution be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.
In order to make the mould after reparation that there is enough support strengths, and strengthen its service life, it is of the invention from mitigation bridge
Position stress and two aspect of reinforcing bridge location set about repairing mould, while the using effect of mould is ensured, it is ensured that mould
The support strength of bridge location, the service life for extending mould.
Present invention firstly provides the restorative procedure that a kind of aluminium alloy extrusion mould splits bridge, which includes following step
Suddenly：
S1) groove milling：In bridge location cracks milling groove；
S2) preheat：First scheduled time of heating is carried out to mould with the first predetermined temperature；
S3) built-up welding：With welding rod built-up welding, groove is filled up, and weld is repaired, CNC can be used to process and beat
The mode of mill；
S4) skiving：By the predetermined skiving thickness of both sides skiving of bridge location where built-up welding；
S5 support plate) is added：Support plate is chosen, is covered at the skiving of bridge location both sides, and carry out reinforcement of weld；
S6) heavy bridge：Implement heavy bridge in bridge location feeding mouth end face, and chamfering is carried out to heavy bridge floor, form decompression angle；
S7) quench：The processing of second scheduled time of heating is carried out to mould with the second predetermined temperature, is then carried out air-cooled.
When the bridge location crackle to mould is repaired, first have to process groove at cracked place, by the crackle and
Its adjacent material removes, then is filled up with solder, and basic as crackle is repaired, to make up crack defect.Wherein, the processing of groove
It can be processed using milling machine, it should be noted that the depth of groove should be more than or equal to the depth of bridge location crackle, after reparation
In mould depths still with the presence of crackle, the service life of mould is influenced.
It is pointed out that, it is necessary to preheated to mould before groove is filled up, with ensure to fill up will not after welding
Apertured presence, to avoid the support strength of mould is influenced.Specifically, during preheating, the first predetermined temperature is 280 DEG C~320
DEG C, when first scheduled time of heating is 4.5~6.0 small.It is for instance possible to use when 300 DEG C of temperature 5 is small.Preheat
Into, it is necessary to carry out built-up welding with welding rod at once after mould is come out of the stove；After the completion of built-up welding, weld is repaiied by CNC and polishing
It is whole.Can select J506 welding rods, built-up welding requirement is completely covered crackle, and even density, without husky hole, and heap postwelding and bridge floor
It is equal.
In order to ensure the support strength of mould bridge location, after groove is filled up with welding rod, also to cracked bridge location both sides
Skiving is carried out, and is covered at skiving with support plate, reinforcement of weld is subject to bridge location.For example, H13 steel can be selected as support
Plate.Specifically, in order to ensure the support strength of bridge location and the harmony of metal flow at the same time, the width of support plate should be less than bridge
The width of position, it is generally the case that the width of support plate is smaller 1~3mm than the width of bridge location；The thickness of support plate and bridge location
Predetermined skiving thickness is equal, wherein, the skiving amount of bridge location is normally controlled in 3~15mm.For example, it can select thick with 10mm
H13 steel as support plate, also, the width of support plate is smaller 2mm than the width of bridge location.
By after support plate reinforcement of weld, it is necessary to which to be trimmed to surfacing to weld smooth so that weld and bridge location it
Between transition naturally, to ensure mould in use, metal flow is smooth, ensures the stability of extrusion process.
In addition, after welding support plate, implement heavy bridge in the feeding mouth end face of mould bridge location, and heavy bridge floor is fallen
Angle, forms decompression angle, can be effectively improved the flowing of metal, reduce the stress of bridge location.Prove, adopt by inventor's test of many times
Bridge is sunk with taper, it is optimal for the improvement of metal flow.Wherein, implementing heavy bridge can be processed using milling machine, usually
In the case of, it is 10~40mm that the cone bottom depth of bridge is sunk in taper, and for the thicker large mold of bridge location, sinking the depth of bridge can be more
It is deep.The mode of chamfering can select electric discharge machining method, and chamfering is ordinarily selected to 10 °~25 °.For example, it can pass through
Bridge is sunk in the taper that milling machine carries out bridge location cracks 30mm depth, and heavy 15 ° of bridge floor progress is fallen using electric discharge machining method
Angle.
In order to eliminate the stress that is produced during Repair gene of mould after repairing, it is necessary to the mould repaired to welding
Quenching treatment is carried out, to strengthen the parameters such as intensity, hardness, fatigue strength and the toughness of bridge location after repairing, improves making for mould
Use the service life.Specifically, in quenching technical, the second predetermined temperature can be 280 DEG C~320 DEG C, and second scheduled time was usually 2.5
~3.5 it is small when.It is for instance possible to use when 300 DEG C of temperature 3 is small, then come out of the stove air-cooled.
In addition, present invention also offers a kind of mould repaired using restorative procedure as described above, the mould is in bridge location
Cracks processing it is fluted, and using welding rod carry out built-up welding fill up；Complete after this repairs substantially, to the both sides skiving of bridge location,
It is provided with support plate at skiving to be covered, to ensure the support strength of the bridge location of the mould after repairing.Wherein, support plate
Width is smaller 1~3mm than the width of bridge location.
In addition, heavy bridge is additionally provided with bridge location feeding mouth end face, and the heavy bridge floor of heavy bridge is provided with decompression angle, to change
Kind metal flow, reduces the stress of bridge location.Specifically, which is pyramidal structure, and the depth at the cone bottom of heavy bridge is 10mm
~40mm, for example, could be provided as 25mm.The decompression angle of the heavy bridge floor is usually 10 °~25 °.
Using the aluminium alloy extrusion mould of restorative procedure reparation provided by the invention, not only the crackle of bridge location is repaiied
It is multiple, and ensure that the support strength of bridge location after reparation, and the force-bearing situation of bridge location is alleviated, accomplishing to ensure that extrusion process is steady
Calmly, on the basis of forming degree is good, effectively extend the service life of mould, save production cost.
Descriptions above can combine implementation individually or in a variety of ways, and these variants all exist
Within protection scope of the present invention.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment comprising a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence " including one ... ", it is not excluded that wrapping
Include in process, method, article or the equipment of the key element that also there are other identical element.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (7)
1. a kind of aluminium alloy extrusion mould splits the restorative procedure of bridge, it is characterised in that the restorative procedure includes：
S1) groove milling：In bridge location cracks milling groove；
S2) preheat：Mould is carried out first scheduled time of heating with the first predetermined temperature, first predetermined temperature is 280 DEG C
~320 DEG C, when first scheduled time is 4.5~6.0 small；
S3) built-up welding：With welding rod built-up welding, the groove is filled up, and weld is repaired；
S4) skiving：By the predetermined skiving thickness of both sides skiving of the bridge location where built-up welding；
S5 support plate) is added：Support plate is chosen, is covered in the bridge location both sides, and carry out reinforcement of weld；
S6) heavy bridge：Implement heavy bridge in the bridge location feeding mouth end face, and chamfering is carried out to heavy bridge floor, form decompression angle, it is described heavy
Bridge sinks bridge for taper, and the cone bottom depth of the heavy bridge be 10~40mm, and the decompression angle is 10 °~25 °；
S7) quench：The processing of second scheduled time of heating is carried out to mould with the second predetermined temperature, is then carried out air-cooled.
2. restorative procedure as claimed in claim 1, it is characterised in that the depth of the groove is more than or equal to the bridge location crackle
Depth.
3. restorative procedure as claimed in claim 1, it is characterised in that the width of the support plate is less than the width of the bridge location
1~3mm, the thickness of the support plate is equal with the predetermined skiving thickness, is 3~15mm.
4. restorative procedure as claimed in claim 1, it is characterised in that second predetermined temperature is 280 DEG C~320 DEG C, institute
State second scheduled time for 2.5~3.5 it is small when.
5. a kind of mould using such as restorative procedure reparation according to any one of claims 1 to 4, it is characterised in that described
The support plate is provided with the bridge location of mould, the width of the support plate is less than 1~3mm of width of the bridge location, the bridge
Position feeding mouth end face is provided with heavy bridge, and the heavy bridge floor of the heavy bridge is provided with decompression angle.
6. mould as claimed in claim 5, it is characterised in that the heavy bridge is pyramidal structure, and the cone bottom of the heavy bridge
Depth is 10~40mm.
7. mould as claimed in claim 6, it is characterised in that the decompression angle is 10 °~25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488217.0A CN106111717B (en) | 2016-06-24 | 2016-06-24 | A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and its mould of reparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488217.0A CN106111717B (en) | 2016-06-24 | 2016-06-24 | A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and its mould of reparation |
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| Publication Number | Publication Date |
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| CN106111717A CN106111717A (en) | 2016-11-16 |
| CN106111717B true CN106111717B (en) | 2018-04-24 |
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| CN106734314B (en) * | 2017-03-16 | 2019-06-28 | 慈溪市宜美佳铝业有限公司 | A kind of pseudo- shunting industrial aluminium section extrusion die |
| CN110091122A (en) * | 2019-04-20 | 2019-08-06 | 广东坚美铝型材厂（集团）有限公司 | A kind of repair apparatus and method for repairing and mending of mold localized cracks |
| CN110948176A (en) * | 2019-12-18 | 2020-04-03 | 建湖金洋科技有限公司 | Mould repairing method |
| CN114310142B (en) * | 2021-12-10 | 2022-12-16 | 广东坚美铝型材厂（集团）有限公司 | Repairing method of solid plate extrusion die |
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| JP2001239367A (en) * | 2000-02-28 | 2001-09-04 | Kawasaki Steel Corp | Gas shielded arc welding method |
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| SU872166A1 (en) * | 1978-11-28 | 1981-10-15 | Физико-технический институт АН БССР | Method of restoration the worn surface of articles |
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