CN105081001A - Continuous extruding producing process of non-oxygen copper bar - Google Patents
Continuous extruding producing process of non-oxygen copper bar Download PDFInfo
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- CN105081001A CN105081001A CN201510637038.4A CN201510637038A CN105081001A CN 105081001 A CN105081001 A CN 105081001A CN 201510637038 A CN201510637038 A CN 201510637038A CN 105081001 A CN105081001 A CN 105081001A
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Abstract
The invention discloses a continuous extruding producing process of a non-oxygen copper bar, and relates to the technical field of formation of novel materials. The process comprises the following steps: (1) selecting non-oxygen sections meeting the conditions; (2) continuously extruding to form; (3) peeling off the surface and processing; (4) stretching to deform; (5) straightening to form; (6) examining the finished product; (7) fixing the size and cutting with a saw; (8) packing and warehousing. The continuous extruding producing process of the non-oxygen copper bar is short in process flow, high in production efficiency, small in energy consumption, high in yield rate, and stable in product quality.
Description
technical field:
The present invention relates to a kind of continuous extrusion production technique of non-oxygen copper bar, belong to new material field shaping technique.
background technology:
Oxygen-free copper blank is extruded in one-shot forming, removes surface oxide layer through peeling processing, and refacing, then manufacture through cold deformation (make sectional area reduce, length increases) the copper section bar production technology meeting oxygen-free copper (TU1, TU2) material and require.
At present, the process technology of oxygen-free copper section bar mainly contains two kinds of production technologies, and one is that vacuum melting-strand-sawing becomes ingot-ingot blank protection anaerobic heating-hot extrusion molding-water seal protection cooling-cold drawing to be worked into finished size; Two is that (semicontinuous) melting-strand-sawing continuously becomes ingot-ingot blank protection anaerobic heating-hot extrusion molding-water seal protection cooling-cold drawing to be worked into finished size.These two kinds technological process is long, energy consumption is large, volume recovery is low, quality stability is not high.
summary of the invention:
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of continuous extrusion production technique of non-oxygen copper bar.
The continuous extrusion production technique of a kind of non-oxygen copper bar of the present invention, its technological process is: 1, select qualified anaerobic section bar; 2, continuously extruding and molding; 3, surface peeling processing; 4, stretcher strain; 5, align shaping; 6, product inspection; 7, scale sawing; 8, packaging warehouse-in.
As preferably, described selection qualified continuous casting anaerobic section bar is no matter adopt the oxygen-free copper bar produced in any way, as long as its oxygen content is less than 10ppm, copper content is greater than 99.97%, other composition meets the requirement of the Tu1 trade mark of GB5231-2001 standard, and specification meets the anaerobic section bar of continuous extruder requirement.
As preferably, described continuously extruding and molding is after Φ 6mm ~ Φ 40mm oxygen-free copper bar is carried out surface treatment, send into continuously in continuous extruder, frictional force temperature arrising caused by friction is utilized to soften also jumping-up gradually in the crimp chamber that copper bar is formed between extruding race and extrusion chamber, fill pre-extrusion cavity, control waste material, the flow of overlap material, flow to, the outflow form of the overlap clout of Control strain, totally pure copper bar material in pre-extrusion chamber is changed in the mould that stream clamp-ons with fusoid streamlined forming cavity through block, and extrude die cavity continuously, molding control is obtained using extrusion geomery (calibrating strap) as the compact dimensions of material, realize forming materials.
As preferably, described surface peeling processing is the oxide layer that the mechanical means such as milling, turning, planing, scraping, grinding can be used under room temperature cold conditions to remove top layer 0.10 ~ 0.5mm, and eliminates the undesirable appearance layers such as finishing cut.
As preferably, described stretcher strain is with continuous extruded product for blank material, uses mould to obtain satisfactory product size and precision by the mode of stretching.
As preferably, described aligning is shaping is the flatness requirements being ensured product by aligning processing.
As preferably, described product inspection is the specific demand by national standard and market, the mechanical performance of inspection product, physical property, chemical composition, fault in material, electric property, physical dimension and tolerance, surface quality etc.
As preferably, described anaerobic section bar is continuous casting oxygen-free copper rod, continuous casting oxygen-free copper rod is for raw material with Cu-CATH-1 or standard cathode copper, through 1150 ± 10 DEG C of high temperature melting, adopt hard charcoal and graphite phosphorus sheet to cover as reducing agent, with haulage gear in graphite crystallizer, by regulated procedure action, Φ 6mm ~ Φ 40mm copper bar is pulled out, hauling speed 0.5mm/s ~ 50mm/s, the oxygen content of oxygen-free copper bar is less than 10ppm.
Beneficial effect of the present invention is: its technological process is short, and production efficiency is high, and energy consumption is low, volume recovery is high, constant product quality.
accompanying drawing illustrates:
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is process chart of the present invention.
detailed description of the invention:
For making the object, technical solutions and advantages of the present invention clearly understand, below by the specific embodiment shown in accompanying drawing, the present invention is described.But should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1, this detailed description of the invention by the following technical solutions: its technological process is: 1, select qualified anaerobic section bar; 2, continuously extruding and molding; 3, surface peeling processing; 4, stretcher strain; 5, align shaping; 6, product inspection; 7, scale sawing; 8, packaging warehouse-in.
Further, described selection qualified continuous casting anaerobic section bar is no matter adopt the oxygen-free copper bar produced in any way, as long as its oxygen content is less than 10ppm, copper content is greater than 99.97%, other composition meets the requirement of the Tu1 trade mark of GB5231-2001 standard, and specification meets the anaerobic section bar of continuous extruder requirement.
Further, described continuously extruding and molding is after Φ 6mm ~ Φ 40mm oxygen-free copper bar is carried out surface treatment, send into continuously in continuous extruder, frictional force temperature arrising caused by friction is utilized to soften also jumping-up gradually in the crimp chamber that copper bar is formed between extruding race and extrusion chamber, fill pre-extrusion cavity, control waste material, the flow of overlap material, flow to, the outflow form of the overlap clout of Control strain, totally pure copper bar material in pre-extrusion chamber is changed in the mould that stream clamp-ons with fusoid streamlined forming cavity through block, and extrude die cavity continuously, molding control is obtained using extrusion geomery (calibrating strap) as the compact dimensions of material, realize forming materials.
Further, described surface peeling processing is the oxide layer that the mechanical means such as milling, turning, planing, scraping, grinding can be used under room temperature cold conditions to remove top layer 0.10 ~ 0.5mm, and eliminates the undesirable appearance layers such as finishing cut.
Further, described stretcher strain is with continuous extruded product for blank material, uses mould to obtain satisfactory product size and precision by the mode stretched.
Further, described aligning is shaping is the flatness requirements being ensured product by aligning processing.
Further, described product inspection is the specific demand by national standard and market, checks the mechanical performance of product, physical property, chemical composition, fault in material, electric property, physical dimension and tolerance, surface quality etc.
Further, described anaerobic section bar is continuous casting oxygen-free copper rod, continuous casting oxygen-free copper rod is for raw material with Cu-CATH-1 or standard cathode copper, through 1150 ± 10 DEG C of high temperature melting, adopt hard charcoal and graphite phosphorus sheet to cover as reducing agent, with haulage gear in graphite crystallizer, by regulated procedure action, Φ 6mm ~ Φ 40mm copper bar is pulled out, hauling speed 0.5mm/s ~ 50mm/s, the oxygen content of oxygen-free copper bar is less than 10ppm.
The extruder used in described continuously extruding and molding is made up of squeegee roller, closed cavity and block, extrusion die.In order to form the copper section bar of anaerobic, the structure of block, cavity and mould has all carried out particular design.By changing the spilling mode of material and clamp-oning the mode of mould, solve after oxygen-free copper bar enters mould that material purity reduces, occurs material layering, the oxygen content of local material exceeds standard, the fault in material such as bubbling when reheating.The kinematic parameter of extruder is: line bar enters operating rate: 65mm/s ~ 380mm/s; Forming temperature: 450 ~ 550 DEG C; The extruded velocity of shaped article: 5mm/s ~ 280mm/s.
Described extruder can adopt any one of copper continuous extrusion machine TLJ250, TLJ300, TLJ350, TLJ400, TLJ450, TLJ500, TLJ550, TLJ600, TLJ630 and TLJ650.
This detailed description of the invention has following beneficial effect:
1., adopt the mode production anaerobic bar blank drawn, make blank have characteristic that is high-purity, anaerobic, decrease the internal flaw of blank, capability and performance is more stable;
2., adopt continuously extruded new technology, carry out improvement to continual extruding technology and produce oxygen-free copper section bar, production procedure is short, and production efficiency is high, and energy consumption is low, and lumber recovery is high, pollution-free, is a kind of brand-new production technology.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. a continuous extrusion production technique for non-oxygen copper bar, is characterized in that: its technological process is: (1), select qualified anaerobic section bar; (2), continuously extruding and molding; (3), surface peeling processing; (4), stretcher strain; (5), align shaping; (6), product inspection; (7), scale sawing; (8), packaging warehouse-in.
2. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, it is characterized in that: described selection qualified continuous casting anaerobic section bar is no matter adopt the oxygen-free copper bar produced in any way, as long as its oxygen content is less than 10ppm, copper content is greater than 99.97%, other composition meets the requirement of the Tu1 trade mark of GB5231-2001 standard, and specification meets the anaerobic section bar of continuous extruder requirement.
3. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, it is characterized in that: described continuously extruding and molding is after Φ 6mm ~ Φ 40mm oxygen-free copper bar is carried out surface treatment, send into continuously in continuous extruder, frictional force temperature arrising caused by friction is utilized to soften also jumping-up gradually in the crimp chamber that copper bar is formed between extruding race and extrusion chamber, fill pre-extrusion cavity, control waste material, the flow of overlap material, flow to, the outflow form of the overlap clout of Control strain, totally pure copper bar material in pre-extrusion chamber is changed in the mould that stream clamp-ons with fusoid streamlined forming cavity through block, and extrude die cavity continuously, molding control is obtained using extrusion geomery and calibrating strap as the compact dimensions of material, realize forming materials.
4. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, it is characterized in that: described surface peeling processing is the oxide layer that the mechanical means such as milling, turning, planing, scraping, grinding can be used under room temperature cold conditions to remove top layer 0.10 ~ 0.5mm, and eliminates the undesirable appearance layers such as finishing cut.
5. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, is characterized in that: described stretcher strain is with continuous extruded product for blank material, uses mould to obtain satisfactory product size and precision by the mode stretched.
6. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, is characterized in that: described aligning is shaping is the flatness requirements being ensured product by aligning processing.
7. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, it is characterized in that: described product inspection is the specific demand by national standard and market, check the mechanical performance of product, physical property, chemical composition, fault in material, electric property, physical dimension and tolerance, surface quality.
8. the continuous extrusion production technique of a kind of non-oxygen copper bar according to claim 1, it is characterized in that: described anaerobic section bar is continuous casting oxygen-free copper rod, continuous casting oxygen-free copper rod is for raw material with Cu-CATH-1 or standard cathode copper, through 1150 ± 10 DEG C of high temperature melting, hard charcoal and graphite phosphorus sheet is adopted to cover as reducing agent, with haulage gear in graphite crystallizer, by regulated procedure action, Φ 6mm ~ Φ 40mm copper bar is pulled out, hauling speed 0.5mm/s ~ 50mm/s, the oxygen content of oxygen-free copper bar is less than 10ppm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510637038.4A CN105081001A (en) | 2015-10-03 | 2015-10-03 | Continuous extruding producing process of non-oxygen copper bar |
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| CN201510637038.4A CN105081001A (en) | 2015-10-03 | 2015-10-03 | Continuous extruding producing process of non-oxygen copper bar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269969A (en) * | 2016-08-06 | 2017-01-04 | 徐高磊 | A kind of production technology of electron tube non-oxygen copper bar |
| CN112570993A (en) * | 2020-12-04 | 2021-03-30 | 无锡通伟电力设备有限公司 | Processing method of conductive copper bus |
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| WO2004087974A1 (en) * | 2003-04-03 | 2004-10-14 | Outokumpu Oyj | Machinable copper alloy |
| CN101502872A (en) * | 2009-03-11 | 2009-08-12 | 上海康成铜材有限公司 | Shortened method for producing oxygen-free copper belt |
| CN102240695A (en) * | 2010-05-10 | 2011-11-16 | 贵溪华泰铜业有限公司 | New, efficient and environmentally-friendly process for producing high-quality copper profiled bar |
| CN202087618U (en) * | 2011-04-28 | 2011-12-28 | 绍兴市力博电气有限公司 | Continuous extrusion oxygen-free copper bar mold structure |
| CN102886390A (en) * | 2012-10-25 | 2013-01-23 | 徐高磊 | Process for producing ultra-fine copper wire |
| CN104259238A (en) * | 2014-07-25 | 2015-01-07 | 陕西省军工（集团）陕铜有限责任公司 | Processing method of oxygen-free copper sectional materials |
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2015
- 2015-10-03 CN CN201510637038.4A patent/CN105081001A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004087974A1 (en) * | 2003-04-03 | 2004-10-14 | Outokumpu Oyj | Machinable copper alloy |
| CN101502872A (en) * | 2009-03-11 | 2009-08-12 | 上海康成铜材有限公司 | Shortened method for producing oxygen-free copper belt |
| CN102240695A (en) * | 2010-05-10 | 2011-11-16 | 贵溪华泰铜业有限公司 | New, efficient and environmentally-friendly process for producing high-quality copper profiled bar |
| CN202087618U (en) * | 2011-04-28 | 2011-12-28 | 绍兴市力博电气有限公司 | Continuous extrusion oxygen-free copper bar mold structure |
| CN102886390A (en) * | 2012-10-25 | 2013-01-23 | 徐高磊 | Process for producing ultra-fine copper wire |
| CN104259238A (en) * | 2014-07-25 | 2015-01-07 | 陕西省军工（集团）陕铜有限责任公司 | Processing method of oxygen-free copper sectional materials |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269969A (en) * | 2016-08-06 | 2017-01-04 | 徐高磊 | A kind of production technology of electron tube non-oxygen copper bar |
| CN106269969B (en) * | 2016-08-06 | 2018-03-09 | 湖北金铜铝业有限公司 | A kind of production technology of electron tube non-oxygen copper bar |
| CN112570993A (en) * | 2020-12-04 | 2021-03-30 | 无锡通伟电力设备有限公司 | Processing method of conductive copper bus |
| CN112570993B (en) * | 2020-12-04 | 2024-01-30 | 无锡通伟电力设备有限公司 | Processing method of conductive copper bus |
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