CN103157684B - Aluminum profile graded-speed extrusion process - Google Patents

Aluminum profile graded-speed extrusion process Download PDF

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Publication number
CN103157684B
CN103157684B CN201310113994.3A CN201310113994A CN103157684B CN 103157684 B CN103157684 B CN 103157684B CN 201310113994 A CN201310113994 A CN 201310113994A CN 103157684 B CN103157684 B CN 103157684B
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Prior art keywords
speed
extrusion
aluminum profile
section bar
tail
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CN103157684A (en
Inventor
罗其达
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Cixi City Yi Meijia Aluminum Co., Ltd
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CIXI EMEKA ELECTRIC APPLIANCES Co Ltd
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Abstract

The invention relates to an aluminum profile graded-speed extrusion process. The general extruder has the functions of constant speed and variable speed which are selected by the production of a product, wherein the constant-speed extrusion can guarantee the basic consistency of the outlet temperature and the speed under certain condition, but the head and the tail have a difference of 0.1mm-0.4mm when the size changes at the heat part, the middle part and the tail part of the product extruded in the constant speed are checked and compared. The aluminum profile graded-speed extrusion process comprises the following steps: (1) a first-section low-speed extrusion; (2) the middle-section constant speed pressurizing; (3) the tail-section high-speed extrusion. The aluminum profile graded-speed extrusion process provided by the invention is simple in process flow, and convenient to specifically operate, overcomes the defects that the sizes at the head and the tail of the product extruded in the traditional constant speed have irreversible difference, and is widely suitable for the extrusion of various aluminum profile.

Description

Aluminium section bar segmentation speed expressing technique
Technical field
The present invention relates to a kind of aluminium section bar segmentation speed expressing technique.
Background technology
General extruder has the function of constant speed and Duan Su for production choice for use, although wherein constant speed extruding can protect outlet temperature and speed is basically identical under certain condition, but check the product head comparing and squeeze out when using constant speed, middle part, the change in size of afterbody, can find to compare the difference having 0.1mm ~ 0.4mm end to end, this is because breakthrough pressure when using constant speed extruding to start is high, mould is caused by work strip is outwards tiltedly dehisced in a high voltage state, when pressure declines gradually, die working length returns to normal condition dimensionally stable, but when being expressed to afterbody metal flow and turbulent flow and metal quantity delivered deficiency occurring, change in size starts again to have occurred, therefore there is the defect that difference in size end to end appears in extruded product in constant speed extruding.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect how overcoming prior art, provides a kind of aluminium section bar segmentation speed expressing technique.
For solving the problems of the technologies described above, this aluminium section bar segmentation speed expressing technique comprises the following steps,
1) first section of low speed extruding:
Extrusion speed is set as 3.0mm/s, press-in aluminium ingot, start die mould;
2) stage casing constant speed pressurization:
After the section bar squeezed out through step 1) reaches stabilizing distance, speed of extruder is set as 3.5mm/s, constant speed extrudes;
3) latter end high-speed extrusion
When through step 2) after the section bar distance discharging end that squeezes out exceedes stabilizing distance, extrusion speed is set as 3.8mm/s, is squeezed to whole section bar extrusion.
As optimization, the stabilizing distance described in step 1) is preferably 3000mm.
As optimization, the stabilizing distance described in step 3) is preferably 3000mm.
Design like this, carries out corresponding extrusion process to the stem of aluminium section bar, middle part, afterbody respectively by segmentation speed, reduces the size disparity end to end even eliminating extruded product.
The technological process of aluminium section bar segmentation of the present invention speed expressing technique is simple, concrete operations convenient, overcomes the size end to end that traditional constant speed extrudes the extruded product of existence and exists and can not eliminate the defect of gap, be extensively suitable for extruding of all kinds of aluminium section bar.
Detailed description of the invention
This aluminium section bar segmentation speed expressing technique comprises the following steps,
1) first section of low speed extruding:
Extrusion speed is set as 3.0mm/s, press-in aluminium ingot, start die mould;
2) stage casing constant speed pressurization:
After the section bar squeezed out through step 1) reaches 3000mm, speed of extruder is set as 3.5mm/s, constant speed extrudes;
3) latter end high-speed extrusion
When through step 2) the section bar distance discharging end that squeezes out more than 3000mm after, extrusion speed is set as 3.8mm/s, is squeezed to whole section bar extrusion.
The present invention includes but be not limited to above-mentioned embodiment, any product meeting these claims and describe, all falls within protection scope of the present invention.

Claims (1)

1. an aluminium section bar segmentation speed expressing technique, is characterized in that: this technique comprises the following steps,
1) first section of low speed extruding:
Extrusion speed is set as 3.0mm/s, press-in aluminium ingot, start die mould;
2) stage casing constant speed pressurization:
When through step 1) after the section bar that squeezes out reaches stabilizing distance, speed of extruder is set as 3.5mm/s, and constant speed extrudes;
3) latter end high-speed extrusion
When through step 2) after the section bar distance discharging end that squeezes out exceedes stabilizing distance, extrusion speed is set as 3.8mm/s, is squeezed to whole section bar extrusion;
Step 1) described in stabilizing distance be 3000mm; Step 2) described in stabilizing distance be 3000mm.
CN201310113994.3A 2013-04-02 2013-04-02 Aluminum profile graded-speed extrusion process Active CN103157684B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310113994.3A CN103157684B (en) 2013-04-02 2013-04-02 Aluminum profile graded-speed extrusion process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310113994.3A CN103157684B (en) 2013-04-02 2013-04-02 Aluminum profile graded-speed extrusion process

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CN103157684A CN103157684A (en) 2013-06-19
CN103157684B true CN103157684B (en) 2015-03-11

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941234A (en) * 2018-07-06 2018-12-07 扬州瑞斯乐复合金属材料有限公司 A kind of control method of the extruded velocity of microchannel aluminium flat conduit
CN110976543B (en) * 2019-12-16 2021-06-08 广东和胜工业铝材股份有限公司 Sectional-speed extrusion process of aluminum alloy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727335A1 (en) * 1994-11-25 1996-05-31 Hardouin Jean Pierre Extrusion spinning of low grade aluminium@ alloy
CN201220247Y (en) * 2008-07-08 2009-04-15 无锡海特铝业有限公司 Hot-extrusion mould for aluminum alloy section bar
CN102794321A (en) * 2012-08-17 2012-11-28 天津金源工业技术服务有限公司 Preparation process of composite bimetallic wire substrate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218323A (en) * 1982-06-15 1983-12-19 Ube Ind Ltd Method for controlling extruding speed of extrusion press
JPH0771691B2 (en) * 1986-05-29 1995-08-02 昭和アルミニウム株式会社 Method of manufacturing extruded material having three-dimensional shape change
JPH01218715A (en) * 1988-02-26 1989-08-31 Sumitomo Metal Ind Ltd Method for hot extruding pipe
US20060243359A1 (en) * 2003-04-07 2006-11-02 Hideo Sano High-strength aluminum alloy extruded material with excellent corrosion resistance and method of producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727335A1 (en) * 1994-11-25 1996-05-31 Hardouin Jean Pierre Extrusion spinning of low grade aluminium@ alloy
CN201220247Y (en) * 2008-07-08 2009-04-15 无锡海特铝业有限公司 Hot-extrusion mould for aluminum alloy section bar
CN102794321A (en) * 2012-08-17 2012-11-28 天津金源工业技术服务有限公司 Preparation process of composite bimetallic wire substrate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
大型挤出机温度及速度控制系统择优;谭庆义等;《化学建材》;20090320(第02期);12-13 *

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Owner name: CIXI EMEKA ALUMINIUM INDUSTRY CO., LTD.

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Effective date of registration: 20150812

Address after: 315311, Cixi, Zhejiang province Longshan east coastal zone

Patentee after: Cixi City Yi Meijia Aluminum Co., Ltd

Address before: 315338, Zhejiang, Ningbo province Cixi Longshan East Industrial Zone tide day road junction

Patentee before: Cixi Emeka Electric Appliances Co., Ltd.