CN106111717A - A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and the mould of reparation thereof - Google Patents
A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge and the mould of reparation thereof Download PDFInfo
- Publication number
- CN106111717A CN106111717A CN201610488217.0A CN201610488217A CN106111717A CN 106111717 A CN106111717 A CN 106111717A CN 201610488217 A CN201610488217 A CN 201610488217A CN 106111717 A CN106111717 A CN 106111717A
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- China
- Prior art keywords
- bridge
- mould
- restorative procedure
- location
- heavy
- 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.)
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Classifications
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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
-
- 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
Abstract
The present invention provides a kind of aluminium alloy extrusion mould to split the restorative procedure of bridge and the mould of reparation thereof, and described restorative procedure includes: S1) groove milling；S2) preheating；S3) built-up welding；S4) skiving；S5) gripper shoe is added；S6) heavy bridge；S7) quenching.This aluminium alloy extrusion mould splits the restorative procedure of bridge and the mould of reparation thereof, bridge location cracks groove milling go forward side by side windrow weldering fill up after, by adding gripper shoe synchronous welding in bridge location both sides, can be while repairing rift defect, it is ensured that the support strength of mould bridge location；It addition, sink bridge chamfering also by real-time taper, in order to improve metal flow, reduce bridge location stress further.Using the mould that the restorative procedure of the present invention is repaired, not only bridge location is firm, mold use life, and extrusion process is stable, and product moulding degree is good.
Description
Technical field
The present invention relates to aluminium alloy and produce equipment technical field, particularly relate to the recovery technique neck of aluminium alloy extrusion mould
Territory.
Background technology
Aluminium alloy extrusion mould in use, often owing to bearing the support strength of bigger pressure or bridge not
Enough, and produce and split bridge.In production, typically use the method for repairing and mending of weld crack for there is splitting the aluminium alloy extrusion mould of bridge,
I.e. carry out repairing mould by groove milling around mould crack, built-up welding.Although this method can repair rift defect, but mould
Intensity be substantially reduced, it is impossible to return to mould intact time intensity, thus mold use life-span and effect are all caused pole
Big impact.
Summary 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 problem above of solving
A kind of aluminium alloy extrusion mould splits the restorative procedure of bridge.Specifically, while the present invention provides and can repair bridge location crack, it is ensured that
The restorative procedure of mould strength and the mould of reparation thereof.
According to the first aspect of the invention, the invention provides a kind of aluminium alloy extrusion mould and split the restorative procedure of bridge, institute
State restorative procedure to include: S1) groove milling: at bridge location cracks milling groove；S2) preheating: mould is added with the first predetermined temperature
First scheduled time of heat；S3) built-up welding: use welding rod built-up welding, fills up described groove, and repairs weld；S4) skiving:
By the both sides skiving predetermined skiving thickness of bridge location described in built-up welding place；S5) add gripper shoe: choose gripper shoe, cover at described bridge
Both sides, position, and carry out reinforcement of weld；S6) heavy bridge: implement heavy bridge at described bridge location feeding mouth end face, and heavy bridge floor is carried out down
Angle, forms decompression angle；S7) quenching: with the second predetermined temperature, mould is heated the process of second scheduled time, then carry out wind
Cold.
Wherein, the degree of depth of described groove is more than or equal to the degree of depth of described bridge location crackle.
Wherein, described first predetermined temperature is 280 DEG C～320 DEG C, and described first scheduled time is 4.5～6.0 hours.
Wherein, the width of described gripper shoe is less than the width 1～3mm of described bridge location, and the thickness of described gripper shoe is with described
Predetermined skiving thickness is equal, is 3～15mm.
Wherein, described heavy bridge is that bridge is sunk in taper, and the degree of depth at the bottom of the cone of described heavy bridge is 10～40mm, and described decompression angle is 10 °
～25 °.
Wherein, described second predetermined temperature is 280 DEG C～320 DEG C, and described second scheduled time is 2.5～3.5 hours.
According to a further aspect in the invention, present invention also offers a kind of mould using restorative procedure as above to repair
Tool, the bridge location of described mould is provided with described gripper shoe, and the width of described gripper shoe is less than the width 1～3mm of described bridge location,
Described bridge location feeding mouth end face is provided with heavy bridge, and the heavy bridge floor of described heavy bridge is provided with decompression angle.
Wherein, described heavy bridge is pyramidal structure, and the degree of depth at the cone end of described heavy bridge is 10～40mm.
Wherein, described decompression angle is 10 °～25 °.
The aluminium alloy extrusion mould of the present invention splits the restorative procedure of bridge and the mould of reparation thereof, in bridge location cracks groove milling also
Carry out after built-up welding fills up, by adding gripper shoe synchronous welding in bridge location both sides, can be while repairing rift defect, really
Protect the support strength of mould bridge location；It addition, sink bridge chamfering also by real-time taper, in order to improve metal flow, subtract further
Few bridge location stress.Using the mould that the restorative procedure of the present invention is repaired, not only bridge location is firm, mold use life, and
And extrusion process is stable, product moulding degree is good.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will be in the embodiment of the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment be a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.It should be noted that in situation about not conflicting
Under, the embodiment in the application and the feature in embodiment can mutual combination in any.
In order to the mould after making reparation has enough support strengths, and strengthening its service life, the present invention is from alleviating bridge
Position stress and reinforcing bridge location two aspect set about repairing mould, while ensureing mold use effect, it is ensured that mould
The support strength of bridge location, prolongation mold use life-span.
Present invention firstly provides a kind of aluminium alloy extrusion mould and split the restorative procedure of bridge, this restorative procedure includes following step
Rapid:
S1) groove milling: at bridge location cracks milling groove；
S2) preheating: mould was heated for first scheduled time with the first predetermined temperature；
S3) built-up welding: use welding rod built-up welding, filled up by groove, and repair weld, can use CNC processing and beat
The mode of mill；
S4) skiving: by the both sides skiving predetermined skiving thickness of built-up welding place bridge location；
S5) add gripper shoe: choose gripper shoe, cover at the skiving of bridge location both sides, and carry out reinforcement of weld；
S6) heavy bridge: implement heavy bridge at bridge location feeding mouth end face, and heavy bridge floor carries out chamfering, forms decompression angle；
S7) quenching: with the second predetermined temperature, mould is heated the process of second scheduled time, then carry out air-cooled.
When the bridge location crackle of mould is repaired, first have to occurring that cracks processes groove, by this crackle and
Material removes about, then fills up with solder, as the basic reparation of crackle, to make up crack defect.Wherein, the processing of groove
Milling machine can be used to be processed, it should be noted that the degree of depth of groove should be more than or equal to the degree of depth of bridge location crackle, in case after Xiu Fuing
In mould depths still with the presence of crackle, affect the mold use life-span.
It is pointed out that before groove is filled up, need mould is preheated, so that guarantee will not after filling up welding
Apertured existence, to avoid affecting the support strength of mould.Specifically, during preheating, the first predetermined temperature is 280 DEG C～320
DEG C, first scheduled time of heating is 4.5～6.0 hours.It is for instance possible to use the temperature of 300 DEG C 5 hours.Preheat
Become, after mould is come out of the stove, need at once to carry out built-up welding with welding rod；After built-up welding completes, by CNC and polishing, weld is repaiied
Whole.Can select J506 welding rod, built-up welding requires to be completely covered crackle, and even density, without husky hole, and heap postwelding and bridge floor
Equal.
In order to ensure the support strength of mould bridge location, after filling up groove with welding rod, also to the bridge location both sides that crackle occurs
Carry out skiving, and cover by gripper shoe at skiving, to bridge location in addition reinforcement of weld.For example, it is possible to select H13 steel as support
Plate.Specifically, the harmony of support strength and metal flow in order to guarantee bridge location simultaneously, the width of gripper shoe should be less than bridge
The width of position, it is generally the case that the width little 1～3mm of the width ratio bridge location of gripper shoe；The thickness of gripper shoe and bridge location
Predetermined skiving thickness is equal, and wherein, the skiving amount of bridge location is normally controlled in 3～15mm.For example, it is possible to select with 10mm thick
H13 steel as gripper shoe, and, the little 2mm of width of the width ratio bridge location of gripper shoe.
After gripper shoe reinforcement of weld, need that weld is trimmed to surfacing smooth so that weld and bridge location it
Between transition natural, to guarantee mould in use, metal flow is smooth and easy, it is ensured that the stability of extrusion process.
It addition, after welding gripper shoe, the feeding mouth end face at mould bridge location implements heavy bridge, and carries out down heavy bridge floor
Angle, forms decompression angle, can be effectively improved the flowing of metal, reduce the stress of bridge location.Prove through inventor's test of many times, adopt
Bridge is sunk, for the improvement best results of metal flow with taper.Wherein, implementing heavy bridge can use milling machine to be processed, generally
In the case of, taper sink bridge cone at the bottom of the degree of depth be 10～40mm, for the large mold that bridge location is thicker, the degree of depth of heavy bridge can be more
Deeply.The mode of chamfering can select electric discharge machining method, and chamfering is ordinarily selected to 10 °～25 °.For example, it is possible to pass through
Milling machine carries out taper deep for 30mm and sinks bridge bridge location cracks, and uses electric discharge machining method that heavy bridge floor is carried out 15 ° to fall
Angle.
The stress produced during Repair gene for the mould after eliminating reparation, needs the mould having repaired welding
Carry out Quenching Treatment, to strengthen the parameters such as the intensity of bridge location, hardness, fatigue strength and toughness after repairing, improve making of mould
Use the life-span.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 hours.It is for instance possible to use the temperature of 300 DEG C 3 hours, then come out of the stove air-cooled.
It addition, present invention also offers a kind of mould using restorative procedure as above to repair, this mould is at bridge location
Cracks be machined with groove, and use welding rod to carry out built-up welding to fill up；Complete after this repairs substantially, the both sides skiving to bridge location,
It is provided with gripper shoe at skiving to cover, in order to guarantee the support strength of the bridge location of the mould after repairing.Wherein, gripper shoe
The width little 1～3mm of width ratio bridge location.
It addition, be additionally provided with heavy bridge at bridge location feeding mouth end face, and the heavy bridge floor of heavy bridge is provided with decompression angle, in order to change
Kind metal flow, reduces the stress of bridge location.Specifically, this heavy bridge is pyramidal structure, and the degree of depth at the cone end of heavy bridge is 10mm
～40mm, for example, it is possible to it is set to 25mm.The decompression angle of this heavy bridge floor is usually 10 °～25 °.
The aluminium alloy extrusion mould that the restorative procedure using the present invention to provide is repaired, is not only repaiied the crackle of bridge location
Multiple, and the support strength of bridge location after ensure that reparation, and alleviate the force-bearing situation of bridge location, guarantee that extrusion process is steady accomplishing
On the basis of fixed, forming degree is good, effectively extend the mold use life-span, save production cost.
Descriptions above can combine enforcement individually or in every way, and these variant all exist
Within protection scope of the present invention.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that comprise the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that at bag
Include and the process of described key element, method, article or equipment there is also other identical element.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit.Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. an aluminium alloy extrusion mould splits the restorative procedure of bridge, it is characterised in that described restorative procedure includes:
S1) groove milling: at bridge location cracks milling groove；
S2) preheating: mould was heated for first scheduled time with the first predetermined temperature；
S3) built-up welding: use welding rod built-up welding, fills up described groove, and repairs weld；
S4) skiving: by the both sides skiving predetermined skiving thickness of bridge location described in built-up welding place；
S5) add gripper shoe: choose gripper shoe, cover in described bridge location both sides, and carry out reinforcement of weld；
S6) heavy bridge: implement heavy bridge at described bridge location feeding mouth end face, and heavy bridge floor carries out chamfering, forms decompression angle；
S7) quenching: with the second predetermined temperature, mould is heated the process of second scheduled time, then carry out air-cooled.
2. restorative procedure as claimed in claim 1, it is characterised in that the degree of depth of described groove is more than or equal to described bridge location crackle
The degree of depth.
3. restorative procedure as claimed in claim 1, it is characterised in that described first predetermined temperature is 280 DEG C～320 DEG C, institute
Stating for first scheduled time is 4.5～6.0 hours.
4. restorative procedure as claimed in claim 1, it is characterised in that the width of described gripper shoe is less than the width of described bridge location
1～3mm, the thickness of described gripper shoe is equal with described predetermined skiving thickness, is 3～15mm.
5. restorative procedure as claimed in claim 1, it is characterised in that described heavy bridge is that bridge is sunk in taper, at the bottom of the cone of described heavy bridge
The degree of depth is 10～40mm, and described decompression angle is 10 °～25 °.
6. restorative procedure as claimed in claim 1, it is characterised in that described second predetermined temperature is 280 DEG C～320 DEG C, institute
Stating for second scheduled time is 2.5～3.5 hours.
7. the mould that the restorative procedure used as according to any one of claim 1～6 is repaired, it is characterised in that described
Being provided with described gripper shoe on the bridge location of mould, the width of described gripper shoe is less than the width 1～3mm of described bridge location, described bridge
Position feeding mouth end face is provided with heavy bridge, and the heavy bridge floor of described heavy bridge is provided with decompression angle.
8. mould as claimed in claim 7, it is characterised in that described heavy bridge is pyramidal structure, and the cone end of described heavy bridge
The degree of depth is 10～40mm.
9. mould as claimed in claim 7, it is characterised in that described 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106111717A true CN106111717A (en) | 2016-11-16 |
| CN106111717B CN106111717B (en) | 2018-04-24 |
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| CN201610488217.0A Active 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023103920A1 (en) * | 2021-12-10 | 2023-06-15 | 广东坚美铝型材厂（集团）有限公司 | Method for repairing solid plate extrusion die |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023103920A1 (en) * | 2021-12-10 | 2023-06-15 | 广东坚美铝型材厂（集团）有限公司 | Method for repairing solid plate extrusion die |
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