CN102922212A - Refreshing method of aluminum profile combined porthole extrusion die - Google Patents
Refreshing method of aluminum profile combined porthole extrusion die Download PDFInfo
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- CN102922212A CN102922212A CN2012104609062A CN201210460906A CN102922212A CN 102922212 A CN102922212 A CN 102922212A CN 2012104609062 A CN2012104609062 A CN 2012104609062A CN 201210460906 A CN201210460906 A CN 201210460906A CN 102922212 A CN102922212 A CN 102922212A
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Abstract
The invention provides a refreshing method of an aluminum profile combined porthole extrusion die and relates to a method for repairing and recovering a scrapped (invalid) aluminum profile extrusion die into a new aluminum profile extrusion die. The refreshing method comprises the following steps: processing an invalid lower die inner mold cavity into a round pit hole or a special-shaped pit hole with the depth of 20-30 mm by adopting an electric spark machine tool to form a lower die pit hole, preparing an insert with the same shape as the lower die pit hole, and scribing and drilling through a screw hole; putting a lower die body with the lower die pit hole into a box body electric furnace for heating, taking the lower die body out of the furnace, putting the big end of the insert into a counter bore of the lower die pit hole, pressing to the bottom of the lower die pit hole, processing the part of the insert, which is above a plane, by adopting the machine tool, then cutting a pass by using a linear cutting machine, extruding a lower die and finishing refreshing; and cutting an upper die tongue working belt of an invalid upper die tongue part into an upper die tongue surrounding part with the depth of 2 mm by using the machine tool or other equipment, welding the upper die tongue working belt, processing the upper die tongue working belt and precisely assembling an upper die and the lower die together to finish refreshing the aluminum profile combined porthole extrusion die.
Description
Technical field
What the multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention related to is that a kind of scrapping (inefficacy) aluminum profile extrusion die is repaired the method that reverts to new aluminum profile extrusion die.
Background technology
The aluminium section bar that uses now adopts the aluminum profile extrusion die extruding usually, aluminum profile extrusion die generally is common in flat-die, diffluence combination die and other serial extrusion die, extruded aluminium section is at high temperature, high pressure, produce under the abominable condition of work of high friction, extrusion die is extremely short service life, every pair of maximum more than 20 tons of i.e. inefficacies of flat-die extruded aluminium section, scrap, every pair of diffluence combination die extruded hollow aluminium section bar has several tons to tens tons namely lost efficacy (scrapping), the inefficacy mould have approximately 75% belong to wearing and tearing overproof, 10 ~ 15% belong to fatigue crack, belong to plastic deformation about 10%, the inefficacy mould reclaims steel mill's remelting as steel scrap, and hundreds thousand of covers are arranged every year approximately.
Mould is established especially big, large, medium and small type aluminum profile extrusion die with extrusion equipment; 80% belongs to medium and small extruder in the extrusion equipment of China; every pair of medium and small extruder does not wait from tens kilograms to kilograms up to a hundred with steel; now according to average every pair of 40 kilograms of calculating; 300 ~ 4,000,000 tons of extrusion dies of will having an appointment every year melt down remelting as steel scrap; this will bring the waste of many artificial, transportations and electric energy; and high electric energy remelting meeting causes serious environmental pollution, and the environmental protection of China is had larger adverse effect.
Summary of the invention
The objective of the invention is for above-mentioned weak point, provide a kind of Extrusion Process of Aluminum Alloy Profile diffluence combination die multiple new method, " multiple new " aluminum profile extrusion die, can overcome above-mentioned shortcoming and solve at present about 80% inefficacy (scrapping) aluminum profile extrusion die and repair problem, again revert to new extruding method of module by repairing, have easily manufactured, save material, reduce production costs, the simple characteristics of manufacturing process.
No matter the various aluminum profile extrusion dies that lost efficacy are the extrusion dies of flat-die, diffluence combination die or other type; except die ontology fracture and gross distortion; overproof based on original mould work band portion wearing and tearing, press fall into, chink, plucking; and die ontology does not damage and gross distortion; recovery adjustment by to the geometric accuracy of extruding work band can continue to use.
The multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die is to take following technical scheme to realize:
The Extrusion Process of Aluminum Alloy Profile diffluence combination die is formed by the accurate assembly of upper die and lower die.Patrix has patrix body 1, and upper mould body 1 middle part is provided with patrix mould tongue 3, and counterdie has counterdie body 2, and lower mould body 2 middle parts are provided with die cavity 4 in the counterdie.
The multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die is as follows:
Adopt spark-erosion machine tool by the monolateral 15 ~ 20mm that emits of die cavity maximum diagonal in the counterdie die cavity in the inefficacy counterdie, be processed into round pool hole or special-shaped pit hole between dark 20 ~ 30mm, make the counterdie pit hole, the counterdie pit hole is counterbore, surface roughness Ra 0.8 μ m, with high strength thermal resistant alloy of the same race or be better than steel of the same race and make and identical the inserting of counterdie pit hole shape, insert machined one-tenth than the large 0.3 ~ 0.5mm of counterdie pit hole internal diameter, the thickness of inserting is put high 2mm than counterdie pit hole hole depth, insert with tapering, hold than the large 0.03 ~ 0.05mm of small end greatly, wire hole is bored in line, reach HRC48-52 through heat treatment, surface roughness Ra 0.8 μ m.The lower mould body that is processed with the counterdie pit hole is put into cabinet-type electric furnace heats when reaching 600 ~ 620 ℃, insulation 2 ~ 3h, gaging hole footpath heat expansion, when size is approximate with the outside dimension of inserting, take off mould body outside stove, the large end of inserting is put into first the counterbore of counterdie pit hole, be pressed onto counterdie pit hole bottom, after lower mould body cooling, leave periphery 1.0 ~ 1.5mm place of inserting with the drift of preparing and impact lower mould body, reach insert external diameter and the driving fit of counterdie pit hole wall and be as the criterion, lathe processing is inserted and is exceeded planar section, then proofreaies and correct counterdie assembling outer diameter of step centering center with wire cutting machine tool, cut pass, spark-erosion machine tool is processed empty cutter, and to reach work band sizing length consistent with the requirement artwork, further carries out after the work belt grinding reaches surface roughness Ra 0.4 μ m, and the extruding counterdie is newly just finished again.
With the patrix mould tongue work band of inefficacy patrix mould tongue portion, with lathe or miscellaneous equipment cutting patrix mould tongue periphery position, the degree of depth is the 2mm place, until visually do not find crackle, dell, plucking or fall the defective such as piece.Upper mould body behind the above-mentioned machining patrix mould tongue is placed on heats in the cabinet-type electric furnace to 520 ℃, be incubated half an hour, with the same material welding wire or be better than the material welding patrix mould tongue work band of this welding wire, enter again and heat in the cabinet-type electric furnace to 610 ~ 630 ℃, 2h is to eliminate stress in insulation, to be cooledly to room temperature, take out, clamping is on machining tool, proofread and correct mounting boss external diameter correction center, processing patrix mould tongue work band is by the monolateral 0.1 ~ 0.2mm of putting of art work sheet, then patrix, the counterdie precision is assembled together, check the die cavity gap with clearance gauge, grind off the patrix redundance, reach art work sheet requirement standard, make patrix mould tongue work band be polished to roughness Ra 0.4 μ m by grinding, assemble and coat antirust oil, just finished the multiple new of aluminium section bar shunting extrusion die.
During the described external diameter of inserting＞Φ 100mm, be processed into than counterdie pit hole internal diameter and get greatly 0.5mm, be processed into than the large 0.3mm of counterdie pit hole internal diameter during the described external diameter of inserting＜Φ 100mm.
The multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention is reasonable in design, " multiple new " aluminum profile extrusion die, can overcome the background technology shortcoming and solve at present about 80% inefficacy (scrapping) aluminum profile extrusion die and repair problem, again revert to new extruding method of module by repairing, repairing, have easily manufactured, save material, reduce production costs, the simple characteristics of manufacturing process.The multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die is passed through the recovery adjustment to the geometric accuracy of extruding work band, again reverts to new extrusion die, can continue to use.
Description of drawings
The invention will be further described below with reference to accompanying drawing:
Fig. 1 is again new Extrusion Process of Aluminum Alloy Profile diffluence combination die schematic diagram of the present invention.
Fig. 2 is the again patrix schematic diagram of new Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention.
Fig. 3 is the again counterdie schematic diagram of new Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention.
Fig. 4 is the again front view of inserting of the counterdie of new Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention.
Fig. 5 is the again top view of inserting of the counterdie of new Extrusion Process of Aluminum Alloy Profile diffluence combination die of the present invention.
The specific embodiment
With reference to accompanying drawing 1～5, the Extrusion Process of Aluminum Alloy Profile diffluence combination die is formed by the accurate assembly of upper die and lower die.Patrix has patrix body 1, and upper mould body 1 middle part is provided with patrix mould tongue 3, and counterdie has counterdie body 2, and lower mould body 2 middle parts are provided with die cavity 4 in the counterdie.
The multiple new method of Extrusion Process of Aluminum Alloy Profile diffluence combination die is as follows:
Adopt spark-erosion machine tool by the monolateral 15 ~ 20mm that emits of die cavity maximum diagonal in the counterdie die cavity in the inefficacy counterdie 4, be processed into round pool hole or special-shaped pit hole between dark 20 ~ 30mm, make counterdie pit hole 5, the counterdie pit hole is counterbore, surface roughness Ra 0.8 μ m, with high strength thermal resistant alloy of the same race or be better than steel of the same race and make and identical with counterdie pit hole shape insert 6, insert 6 machined one-tenth than the large 0.3 ~ 0.5mm of counterdie pit hole 5 internal diameters, 6 thickness of inserting are put high 2mm than counterdie pit hole hole depth, insert with tapering, hold than the large 0.03 ~ 0.05mm of small end greatly, wire hole 7 is bored in line, reach HRC48-52 through heat treatment, surface roughness Ra 0.8 μ m.The lower mould body 2 that is processed with the counterdie pit hole is put into cabinet-type electric furnace heats when reaching 600 ~ 620 ℃, insulation 2 ~ 3h, gaging hole footpath heat expansion, when size is approximate with the outside dimension of inserting, take off mould body 2 outside stove, 6 the large end inserted is put into first the counterbore of counterdie pit hole 5, be pressed onto counterdie pit hole 5 bottoms, after lower mould body 2 coolings, leave 6 peripheries, 1.0 ~ 1.5mm place of inserting with the drift of preparing and impact lower mould body 2, reach insert external diameter and the driving fit of counterdie pit hole wall and be as the criterion, lathe processing is inserted and is exceeded planar section, then proofreaies and correct counterdie assembling outer diameter of step centering center with wire cutting machine tool, cut pass, spark-erosion machine tool is processed empty cutter, and to reach work band 8 sizing length consistent with the requirement artwork, further carry out work band 8 grind reach surface roughness Ra 0.4 μ m after, the extruding counterdie is newly just finished again.
With the patrix mould tongue work band 9 of inefficacy patrix mould tongue 3 parts, with lathe or miscellaneous equipment cutting patrix mould tongue 3 peripheral positions, the degree of depth is the 2mm place, until visually do not find crackle, dell, plucking or fall the defective such as piece.Upper mould body behind the above-mentioned machining patrix mould tongue 3 is placed on heats in the cabinet-type electric furnace to 520 ℃, be incubated half an hour, with the same material welding wire or be better than the material welding patrix mould tongue work band 9 of this welding wire, enter again and heat in the cabinet-type electric furnace to 610 ~ 630 ℃, 2h is to eliminate stress in insulation, to be cooledly to room temperature, take out, clamping is on machining tool, proofread and correct mounting boss external diameter correction center, processing patrix mould tongue work band 9 is by the monolateral 0.1 ~ 0.2mm of putting of art work sheet, then patrix, the counterdie precision is assembled together, check the die cavity gap with clearance gauge, grind off the patrix redundance, reach art work sheet requirement standard, make patrix mould tongue work band 9 be polished to roughness Ra 0.4 μ m by grinding, assemble and coat antirust oil, just finished the multiple new of aluminium section bar shunting extrusion die.
During described 6 external diameters of inserting＞Φ 100mm, be processed into than the large 0.5mm of counterdie pit hole 5 internal diameters, be processed into than the large 0.3mm of counterdie pit hole 5 internal diameters during described 6 external diameters of inserting＜Φ 100mm.
Claims (2)
1. an Extrusion Process of Aluminum Alloy Profile diffluence combination die is answered new method, it is characterized in that:
Adopt spark-erosion machine tool by the monolateral 15 ~ 20mm that emits of die cavity maximum diagonal in the counterdie die cavity in the inefficacy counterdie, be processed into round pool hole or special-shaped pit hole between dark 20 ~ 30mm, make the counterdie pit hole, the counterdie pit hole is counterbore, surface roughness Ra 0.8 μ m, with high strength thermal resistant alloy of the same race or be better than steel of the same race and make and identical the inserting of counterdie pit hole shape, insert machined one-tenth than the large 0.3 ~ 0.5mm of counterdie pit hole internal diameter, the thickness of inserting is put high 2mm than hole depth, insert with tapering, hold than the large 0.03 ~ 0.05mm of small end greatly, wire hole is bored in line, reach HRC48-52 through heat treatment, surface roughness Ra 0.8 μ m; The lower mould body that is processed with the counterdie pit hole is put into cabinet-type electric furnace heats when reaching 600 ~ 620 ℃, insulation 2 ~ 3h, gaging hole footpath heat expansion, when size is approximate with the outside dimension of inserting, take off mould body outside stove, the large end of inserting is put into first the counterbore of counterdie pit hole, be pressed onto counterdie pit hole bottom, after lower mould body cooling, leave periphery 1.0 ~ 1.5mm place of inserting with the drift of preparing and impact lower mould body, reach insert external diameter and the driving fit of counterdie pit hole wall and be as the criterion, lathe processing is inserted and is exceeded planar section, then proofreaies and correct counterdie assembling outer diameter of step centering center with wire cutting machine tool, cut pass, spark-erosion machine tool is processed empty cutter, and to reach work band sizing length consistent with the requirement artwork, further carries out after the work belt grinding reaches surface roughness Ra 0.4 μ m, and the extruding counterdie is newly just finished again;
With the patrix mould tongue work band of inefficacy patrix mould tongue portion, with lathe or miscellaneous equipment cutting patrix mould tongue periphery position, the degree of depth is the 2mm place, until visually do not find crackle, dell, plucking or fall the defective such as piece; Upper mould body behind the above-mentioned machining patrix mould tongue is placed on heats in the cabinet-type electric furnace to 520 ℃, be incubated half an hour, with the same material welding wire or be better than the material welding patrix mould tongue work band of this welding wire, enter again and heat in the cabinet-type electric furnace to 610 ~ 630 ℃, 2h is to eliminate stress in insulation, to be cooledly to room temperature, take out, clamping is on machining tool, proofread and correct mounting boss external diameter correction center, processing patrix mould tongue work band is by the monolateral 0.1 ~ 0.2mm of putting of art work sheet, then patrix, the counterdie precision is assembled together, check the die cavity gap with clearance gauge, grind off the patrix redundance, reach art work sheet requirement standard, make patrix mould tongue work band be polished to roughness Ra 0.4 μ m by grinding, assemble and coat antirust oil, just finished the multiple new of aluminium section bar shunting extrusion die.
2. Extrusion Process of Aluminum Alloy Profile diffluence combination die according to claim 1 is answered new method, it is characterized in that: during the described external diameter of inserting＞Φ 100mm, be processed into than the large 0.5mm of counterdie pit hole internal diameter, be processed into than the large 0.3mm of counterdie pit hole internal diameter during the described external diameter of inserting＜Φ 100mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104609062A CN102922212A (en) | 2012-11-16 | 2012-11-16 | Refreshing method of aluminum profile combined porthole extrusion die |
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| CN2012104609062A CN102922212A (en) | 2012-11-16 | 2012-11-16 | Refreshing method of aluminum profile combined porthole extrusion die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102663A (en) * | 2019-06-05 | 2019-08-09 | 哈尔滨锅炉厂有限责任公司 | The quasi- hemispherical head plunger chip die of bearing device and manufacturing method |
Citations (7)
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| JPS59166329A (en) * | 1983-03-11 | 1984-09-19 | Onishi Shoichi | Die |
| JPH08174099A (en) * | 1994-12-26 | 1996-07-09 | Fuji Oozx Inc | Method for rectifying die |
| RU2293641C2 (en) * | 2005-01-11 | 2007-02-20 | Государственное образовательное учреждение высшего профессионального образования "Мордовский государственный университет им. Н.П. Огарева" | Method for restoring joint of parts such as slide valve |
| CN101733512A (en) * | 2009-11-26 | 2010-06-16 | 上海大学 | Method for quick repair welding, restoring and reproducing of high-alloy cold-working mould |
| CN101824588A (en) * | 2009-03-03 | 2010-09-08 | 武汉鼎超科技开发有限公司 | New method for repairing mould |
| CN102069100A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Aluminum profile hot-extrusion shunt combined die structure |
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2012
- 2012-11-16 CN CN2012104609062A patent/CN102922212A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166329A (en) * | 1983-03-11 | 1984-09-19 | Onishi Shoichi | Die |
| JPH08174099A (en) * | 1994-12-26 | 1996-07-09 | Fuji Oozx Inc | Method for rectifying die |
| RU2293641C2 (en) * | 2005-01-11 | 2007-02-20 | Государственное образовательное учреждение высшего профессионального образования "Мордовский государственный университет им. Н.П. Огарева" | Method for restoring joint of parts such as slide valve |
| CN101824588A (en) * | 2009-03-03 | 2010-09-08 | 武汉鼎超科技开发有限公司 | New method for repairing mould |
| CN102069100A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Aluminum profile hot-extrusion shunt combined die structure |
| CN101733512A (en) * | 2009-11-26 | 2010-06-16 | 上海大学 | Method for quick repair welding, restoring and reproducing of high-alloy cold-working mould |
| CN102581545A (en) * | 2012-04-01 | 2012-07-18 | 哈尔滨飞机工业集团有限责任公司 | Method for repairing reinforcing pit on planar profile of die |
Non-Patent Citations (2)
| Title |
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| 杨金玉: "铝型材挤压模具的修复", 《铝加工》, no. 2, 20 April 2011 (2011-04-20) * |
| 董颖: "铝型材挤压模的镶补修复方法", 《轻合金加工技术》, vol. 31, no. 7, 30 July 2003 (2003-07-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102663A (en) * | 2019-06-05 | 2019-08-09 | 哈尔滨锅炉厂有限责任公司 | The quasi- hemispherical head plunger chip die of bearing device and manufacturing method |
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Application publication date: 20130213 |