CN106424185A - Method for improving extrusion production efficiency of magnesium alloy - Google Patents
Method for improving extrusion production efficiency of magnesium alloy Download PDFInfo
- Publication number
- CN106424185A CN106424185A CN201510769909.8A CN201510769909A CN106424185A CN 106424185 A CN106424185 A CN 106424185A CN 201510769909 A CN201510769909 A CN 201510769909A CN 106424185 A CN106424185 A CN 106424185A
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- CN
- China
- Prior art keywords
- extrusion
- magnesium alloy
- mold
- mould
- refrigerant
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- 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
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
Abstract
The present invention provides a method for improving the extrusion production efficiency of a magnesium alloy. The method comprises: preparing an extrusion mold capable of cyclically cooling; adding the extrusion mold into a mold furnace, heating to a temperature of 450 DEG C, and carrying out thermal insulation for 2 h; starting an extruder, assembling the extrusion mold into the mold seat of the extruder, adjusting the center of the extrusion mold and the center of refrigerant equipment to achieve a centering state, adding a magnesium alloy billet material, and pressurizing; making the extrusion enter a normal production state, wherein the pushing rod propulsion speed is 0.8 mm/s; and starting the refrigerant equipment, slowly opening a refrigerant switch to make the refrigerant gas gradually take away the mold heat through the mold cavity so as to reduce the mold working belt ambient temperature, and at the time, adjusting the extrusion speed to 1.0 mm/s, wherein the product surface is good without crack and discoloration. According to the present invention, with the method, the high-strength hard alloy production capacity can be increased to 300 kg, and per ton of the product requires the extrusion for 48 h in the prior art while the extrusion is continuously performed for 34 h in the present invention, such that the cost per ton is reduced by 1820 yuan according to the production electricity consumption per h of 130 yuan.
Description
Technical field
The present invention relates to a kind of method improving magnesium alloy extrusion production efficiency.
Background technology
The production capacity bottleneck of magnesium alloy profiles extruding at present is after extrusion temperature is too high, after speed is more than 0.8mm/s
Arise that product phenomenon of rupture, thus limit extrusion speed cannot improve, thin-walled small section per tour that the existing industry produces is produced
Low production efficiency, unit cost height can be directly resulted at 250 kilograms about it is impossible to meet customer requirement.Existing for changing this
Shape, lifts magnesium alloy profiles production efficiency, is a technical barrier being eager to capture.
Content of the invention
For the deficiency in structure in prior art, it is an object of the invention to provide a kind of magnesium alloy extrusion that improves produces effect
The method of rate, be beneficial to solve mould high temperature and the product fracture that causes cannot high-speed production bottleneck problem, and improve production capacity,
Reduces cost, realizes batch production.
For achieving the above object, the technical solution used in the present invention is to provide to improve magnesium alloy extrusion section bar production efficiency
Method, the method extrusion magnesium alloy section bar is realized by magnesium alloy extrusion mould, the structure of described magnesium alloy extrusion mould
Be divided into upper die and lower die two parts, magnesium alloy blank by under extruder thrust by mould between gap be extruded, shape
Become the shape consistent with mould outlet shape；The method comprises the following steps：
2) make the extrusion die of cooling capable of circulation
The structure of extrusion of described cooling capable of circulation is to be provided with the heavy platform in an endless belt in the center of described lower mould
Groove, process two through holes in bottom portion of groove simultaneously, and pass through coolant connector 3' and refrigerant import and refrigerant exit respectively
Connection, is inlaid with annular gland in the heavy platform of groove, so that the endless belt of groove is closed；
2) extrusion die addition mould stove is warmed up to 450 degree, is incubated 2 hours；
3) start extruder extrusion die is assemblied in mold base of extruder, in adjustment extrusion die center and refrigerant equipment
The heart aligns, and adds magnesium alloy blank to start to pressurize；
4) it is squeezed into normal production status, pressure ram fltting speed is 0.8mm/s；
5) now start refrigerant equipment, and coolant switch is slowly opened, make cold media gas gradually pass through dies cavity not
Broken belt walks mold heat, thus reducing die working length environment temperature, now extrusion speed is adjusted to 1.0mm/s, product table
Face good flawless variable color.
The effect of the present invention is the method using improving magnesium alloy extrusion production efficiency, to die improvement, is squeezed by controlling
Pressure, thus improve production efficiency, especially high strength cemented carbide, brings up to 300 kilograms using production capacity after this technology, originally
Product needed per ton extrudes 48 hours, and continues now 34 hours, produces 130 yuan of power consumption on an hourly basis.Ton cost reduces
1820 yuan.
Brief description
Fig. 1 is profile extrusion principle of the present invention；
Fig. 2 is inventive die structure top view；
Fig. 3 is inventive die structural side view；
Fig. 4 is whole system of the present invention.
In figure：
1st, upper mould 2, lower mould 3, coolant connector 4, annular gland 5, toroidal cavity passage 6, extruded product 7, base
Material 8, refrigerant inlet 9, refrigerant exit 10, water-filled radiator 11, refrigerant equipment
Specific embodiment
Method in conjunction with the raising magnesium alloy extrusion production efficiency to the present invention for the accompanying drawing is illustrated.
The design philosophy of the method for raising magnesium alloy extrusion production efficiency of the present invention is to design and produce a whole set of cooling system,
Dies cavity is processed into cavity, and connects coolant mold core formed product position is worked band by conduit and lower the temperature,
Reach temperature-controllable during material forming, realize the quick output of magnesium alloy profiles product.
The method of the raising magnesium alloy extrusion section bar production efficiency of the present invention, the method extrusion magnesium alloy section bar is by magnesium
Alloy extrusion mould is realized, and the structure of described magnesium alloy extrusion mould is divided into upper die and lower die two parts, and magnesium alloy blank is led to
Gap between crossing under extruder thrust by mould is extruded, and forms the shape consistent with mould outlet shape；The method
Comprise the following steps：
1) make the extrusion die of cooling capable of circulation
The structure of extrusion of described cooling capable of circulation is to be provided with the heavy platform in an endless belt in the center of described lower mould 2
Groove 5, process two through holes 3 in groove 5 bottom simultaneously, and pass through coolant connector 3' and refrigerant import 8 and coolant respectively
Outlet 9 connection, is inlaid with annular gland 4 in the heavy platform of groove 5, so that the endless belt of groove 5 is closed.
2) extrusion die of cooling capable of circulation is added mould stove to be warmed up to 450 degree, be incubated 2 hours；
3) start extruder extrusion die is assemblied in mold base of extruder, adjust extrusion die center and refrigerant equipment 11
Central alignment, adds magnesium alloy blank to start to pressurize.
4) it is squeezed into normal production status, pressure ram fltting speed is 0.8mm/s.
5) now start refrigerant equipment, and coolant switch is slowly opened, make cold media gas gradually pass through dies cavity not
Broken belt walks mold heat, thus reducing die working length environment temperature, now extrusion speed is adjusted to 1.0mm/s, product table
Face good flawless variable color.
As shown in figure 1, blank enters mould by tap hole, blank 7 passes through the gap between mould under the promotion of pressure
Extrusion, forms the extruded product 6 consistent with mould outlet shape.Pass through mold shape molding stream under high pressure to extrude.
As shown in Figure 2,3, mould processing：Process the groove of the heavy platform in an endless belt in the position of lower mould 2 during processing mold
5th, process two through holes in annular groove bottom and combine 3 connection coolant turnover；Finally annular gland 4 is mounted to the heavy of deep gouge 5
In platform, circular passage is closed.Make cavity structure at mould molding position, by coolant by taking away uniform temperature, make product
Reduce hot tearing.Ring seal gland and mould interference fit, prevent magnesium alloy material from entering.Coolant passes through coolant connector 3' respectively
It is connected with a circular hole is connected on mould, connect refrigerant import 8 and refrigerant exit 9.
As shown in figure 4, mould is passed through the refrigerant inlet 8 of coolant connecting tube, refrigerant exit 9 is connected with refrigerant equipment 11,
Pass through coolant through mould annular cavity passage 5 in extrusion process, constantly take away mold heat it is considered to flow back gas by mould
Temperature is very high, needs to increase by one group of water-filled radiator 10 on loop, makes temperature flow back to compressor again after being down to room temperature；Make product
Product molding spot temperature reduces, thus the decrepitation avoiding product to cause in forming process, reaches raising extrusion speed, carries
The purpose of high production capacity reduces cost.
Claims (1)
1. a kind of method improving magnesium alloy extrusion section bar production efficiency, the method extrusion magnesium alloy section bar is to be squeezed by magnesium alloy
Compression mould is realized, and the structure of described magnesium alloy extrusion mould is divided into upper die and lower die two parts, and magnesium alloy blank passes through extruding
Under machine thrust by mould between gap be extruded, form the shape consistent with mould outlet shape；The method include with
Lower step：
1) make the extrusion die of cooling capable of circulation
The structure of extrusion of described cooling capable of circulation is to be provided with the heavy platform in an endless belt in the center of described lower mould (2)
Groove (5), simultaneously groove (5) bottom process two through holes (3), and respectively pass through coolant connector (3') with refrigerant import
(8) connect with refrigerant exit (9), in the heavy platform of groove (5), be inlaid with annular gland (4), so that the endless belt of groove (5) is closed；
2) extrusion die addition mould stove is warmed up to 450 degree, is incubated 2 hours；
3) start extruder extrusion die is assemblied in mold base of extruder, in adjustment extrusion die center and refrigerant equipment (11)
The heart aligns, and adds magnesium alloy blank to start to pressurize；
4) it is squeezed into normal production status, pressure ram fltting speed is 0.8mm/s；
5) now start refrigerant equipment, and coolant switch is slowly opened, make cold media gas gradually pass through dies cavity not broken belt
Walking mold heat, thus reducing die working length environment temperature, now extrusion speed being adjusted to 1.0mm/s, product surface is good
Good flawless variable color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769909.8A CN106424185A (en) | 2015-11-12 | 2015-11-12 | Method for improving extrusion production efficiency of magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769909.8A CN106424185A (en) | 2015-11-12 | 2015-11-12 | Method for improving extrusion production efficiency of magnesium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106424185A true CN106424185A (en) | 2017-02-22 |
Family
ID=58094010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510769909.8A Pending CN106424185A (en) | 2015-11-12 | 2015-11-12 | Method for improving extrusion production efficiency of magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106424185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913915A (en) * | 2017-09-07 | 2018-04-17 | 烟台大学 | A kind of extruding die for aluminum shaped material for cooling in mould |
| CN109013735A (en) * | 2018-08-21 | 2018-12-18 | 洛阳理工学院 | A kind of double blanks fusing soldering bimetallic plates extrusion dies of double rod and its application method |
| CN109128707A (en) * | 2018-09-28 | 2019-01-04 | 金山门科技有限公司 | Novel high-precision high-efficiency coolant distributor processing technology and its process equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB475836A (en) * | 1936-04-23 | 1937-11-26 | Standard Telephones Cables Ltd | Improvements relating to the cooling of hot material extruded through presses, particularly presses for lead sheathing of cables |
| CN101014427A (en) * | 2004-09-06 | 2007-08-08 | 荷兰应用科学研究会(Tno) | High speed extrusion |
| CN201565485U (en) * | 2009-11-24 | 2010-09-01 | 上海瑞斯乐门窗有限公司 | Structure of high effective cooling aluminium section hot extruding mold |
| CN203991718U (en) * | 2014-06-30 | 2014-12-10 | 大连康丰科技有限公司 | A kind of continuous extrusion device that pushes copper alloy |
| CN104259232A (en) * | 2014-10-16 | 2015-01-07 | 山东省科学院新材料研究所 | Fast extrusion method of ZK60 magnesium alloy profile |
-
2015
- 2015-11-12 CN CN201510769909.8A patent/CN106424185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB475836A (en) * | 1936-04-23 | 1937-11-26 | Standard Telephones Cables Ltd | Improvements relating to the cooling of hot material extruded through presses, particularly presses for lead sheathing of cables |
| CN101014427A (en) * | 2004-09-06 | 2007-08-08 | 荷兰应用科学研究会(Tno) | High speed extrusion |
| CN201565485U (en) * | 2009-11-24 | 2010-09-01 | 上海瑞斯乐门窗有限公司 | Structure of high effective cooling aluminium section hot extruding mold |
| CN203991718U (en) * | 2014-06-30 | 2014-12-10 | 大连康丰科技有限公司 | A kind of continuous extrusion device that pushes copper alloy |
| CN104259232A (en) * | 2014-10-16 | 2015-01-07 | 山东省科学院新材料研究所 | Fast extrusion method of ZK60 magnesium alloy profile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913915A (en) * | 2017-09-07 | 2018-04-17 | 烟台大学 | A kind of extruding die for aluminum shaped material for cooling in mould |
| CN109013735A (en) * | 2018-08-21 | 2018-12-18 | 洛阳理工学院 | A kind of double blanks fusing soldering bimetallic plates extrusion dies of double rod and its application method |
| CN109013735B (en) * | 2018-08-21 | 2023-12-01 | 洛阳理工学院 | Double-rod double-blank fusion welding bimetallic plate extrusion die and use method thereof |
| CN109128707A (en) * | 2018-09-28 | 2019-01-04 | 金山门科技有限公司 | Novel high-precision high-efficiency coolant distributor processing technology and its process equipment |
| CN109128707B (en) * | 2018-09-28 | 2023-12-29 | 金山门科技有限公司 | Novel high-precision high-efficiency refrigerant distributor processing technology and processing equipment thereof |
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Application publication date: 20170222 |