CN103602853A - Low-lead extruded brass bar and production method thereof - Google Patents
Low-lead extruded brass bar and production method thereof Download PDFInfo
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- CN103602853A CN103602853A CN201310562188.4A CN201310562188A CN103602853A CN 103602853 A CN103602853 A CN 103602853A CN 201310562188 A CN201310562188 A CN 201310562188A CN 103602853 A CN103602853 A CN 103602853A
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Abstract
The invention provides a low-lead extruded brass bar and a production method thereof. The production method comprises the steps of carrying out fusion casting on raw materials, and then extruding to obtain a solid brass ingot, wherein the raw materials include 45-50% of electrolytic copper raw materials, 19-29% of low-lead environment-friendly foundry returns, 0.8-1.0% of bismuth, 25-30% of zinc ingots, 0.01-0.02% of magnesium and 0.01-0.02% of tin; extruding the brass ingot to form the brass bar. By using the formula and method provided by the invention, the low-lead environment-friendly extruded brass bar with excellent polishing and electroplating, machining and impact molding performances can be prepared.
Description
Technical field
The present invention relates to a kind of water heating bathroom component and device copper alloy materials, particularly a kind of low lead extrudes round brass rod and production method thereof.
Background technology
Leaded brass has the features such as good cold and hot working performance, fabulous cutting ability and self-lubricating, can meet the technique such as casting, forging, machining, polishing of different shape component, so leaded brass is widely used in the industries such as electronics telecommunication, household electrical appliances, space flight and aviation, automobile, five metals decoration, shipbuilding and bathroom hot-water heating.It is poor that existing low lead ring guarantor draws casting round brass rod surface quality, be difficult for polishing electric degree, difficulty of processing is large, in machining, be easy to cracking, more easy to crack in impact briquetting, therefore most of manufacturer has to continue to use leaded round brass rod and produces complex parts, and this lead and yellow-collation copper rod has good cutting ability, is applied to all trades and professions such as hardware, bike, pen processed, electronics, battery, household electrical appliance, communication, clock and watch.But lead is to one of relatively large heavy metal of harm, and lead enters environment and is difficult for removing later, and accumulate in environment, very easily biological and human body are produced to certain toxic action, particularly children's cranial nerve and renal function are caused to irreversible damage, serious meeting causes blood lead, brain lead poisoning, backwardness, dementia, the adverse consequences such as active.Therefore be now all devoted to the Application and Development of unleaded copper rod both at home and abroad.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of low lead and extrudes round brass rod and production method thereof, by formula of the present invention and method, can prepare there is good polishing plating, the low lead ring of machining, impact briquetting performance protects and extrudes round brass rod.
For solving this technical problem; the present invention takes following scheme: a kind of low lead extrudes round brass rod, comprises that the raw material of following weight per-cent forms: electrolytic copper material 45～50%, low lead ring are protected foundry returns 19～29%, bismuth 0.8～1.0%, zinc ingot metal 25～30%, magnesium 0.01～0.02%, tin 0.01～0.02%.
Further improved: above-mentioned each raw material is all dry raw material.
Further improved: it is that low lead ring is protected brass waste material that described low lead ring is protected foundry returns.
Based on same design the present invention, propose a kind of method that low lead extrudes round brass rod, it is characterized in that: comprise that founding pushes the step of solid BRASS FORGE and BRASS FORGE is squeezed into the step of copper rod:
The step that solid BRASS FORGE is pushed in described founding comprises:
1), will account for the electrolytic copper material of brass raw material 45～50% drop in power frequency copper smelting furnace, the industry that goes into operation voltage high pressure 380V then adds 0.1% environmental protection refining slag-cleaning agent in power frequency copper smelting furnace, is warming up to brass raw material and dissolves completely, obtains copper liquid;
2), the low lead ring that accounts for brass raw material 19～29% protected to brass waste material divide in proportion 1～2 batch to drop in above-mentioned copper liquid, stir in batches, reduce loss, improve melting efficiency;
3), then the zinc ingot metal that accounts for brass raw material 25～30% is added in copper liquid successively, continuously stirring melts completely to raw material;
4), then in power frequency copper smelting furnace, add the bismuth that accounts for brass raw material 0.8～1.0% again, be stirred to fusing;
5), toward adding the magnesium that accounts for brass raw material 0.01～0.02% and the tin that accounts for brass raw material 0.01～0.02% in power frequency copper smelting furnace, be pressed into copper liquid inner and stir and make it fusing;
6), in power frequency copper smelting furnace, add 0.1% environmental protection refining slag-cleaning agent again, be pressed into copper liquid inner, continuously stirring evenly makes it fusing and with low pressure refining 5～10min of 220～250V;
7), the chemical composition of stokehold sampling and measuring copper liquid, after sampling, power frequency copper smelting furnace suspends industrial voltage high pressure 380V, the industry that goes into operation voltage low pressure 180～220V, carries out slag hitting;
8), according to composition test result, readjust the composition of copper liquid, fill into raw material, reopen industrial voltage high pressure 380V, be stirred to raw material and melt completely, be then warming up to complete flame twice, temperature is 1060～1100 ℃;
9), change the industry low pressure 180～220V that goes into operation, temperature be 1020～1040 ℃ standing 3～5 minutes, then carry out slag hitting, slag is beaten after clean copper water is poured in holding furnace;
10), crystallizer is installed on holding furnace, during installation, with drawing bar to center, to guarantee and tractor level;
11), finally with tractor, start to draw casting, before starting to draw casting, the copper water temp in holding furnace should be raised to little flame, industry voltage is 250V～300V voltage, give in water jacket and send into a small amount of water simultaneously, the water yield is 2.2 L/s, preparation work starts to draw rod after carrying out, while just starting to draw rod, tractor speed slows down the min to 20～40mm/, , until draw rod success, after drawing rod success, voltage is dropped to 180V～240V, adjust tractor speed and be adjusted to 40～50mm/ min, and open cooling water switch, the water yield is 4.0 L/s, draw excellent length and reach one meter of above speed 50～70mm/ min that pulling rate can be adjusted to processing requirement, wait draw rod normal after, the synchronous saw of tractor is adjusted to the length that needs sawing, by long copper rod saw short one-tenth can be used for extruding short copper ingot,
The step that described BRASS FORGE is squeezed into copper rod is above-mentioned short copper ingot to be contained in squeezing device and to utilize squeezing device to apply external force to short copper ingot to make it to flow out from the extrusion die orifice of squeezing device, thereby obtains a kind of plastic processing method of required section form and size.
Further improved: the temperature of described flame is 1060～1100 ℃.
Further improved: described squeezing device comprises container, overflow mould and extrusion axis, in described container, there is the extruded hole that can accommodatingly be extruded goods, described extrusion axis is located at one end of extruded hole, described overflow mould is fixedly arranged on container away from that one end of extrusion axis, described overflow mould is provided with and can will be extruded the extrusion die orifice of product extrusion, and the free end of described extrusion axis can advance simultaneously or retreat with pushing drive unit phase interlock and by pushing drive unit.
Further improved: the front end that is positioned at extrusion axis in the extruded hole of described container is also provided with extruding pad.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: the low lead ring that adopts the specific formula of the present invention and production technique to produce is protected and extruded round brass rod, its physicals and surface quality are all good, can reduce hot-water heating industry electroplates in polishing, mechanical workout, waste product in impact briquetting, improve yield rate approximately 10%～20%, having solved hot-water heating industry protects and draws the low problem of the poor yield rate of casting rod physicals because of low lead ring for many years, adopt bismuth metal to replace plumbous, improved the machinability of round brass rod, the strict order of addition of controlling various raw materials in production process, avoided the scaling loss of each material effective component, reduced raw materials cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention squeezing device.
Embodiment
The present invention is further described for now combination and specific embodiment.
Embodiment mono-:
The present invention discloses a kind of low lead and extrudes round brass rod, comprises that the raw material of following weight per-cent forms: electrolytic copper material 45%, low lead ring are protected foundry returns 19%, bismuth 0.8%, zinc ingot metal 25%, magnesium 0.01%, tin 0.01%.Above-mentioned each raw material is all dried feed.
Above-mentioned raw materials proportioning is produced the production method that low lead extrudes round brass rod: comprise that founding pushes the step of solid BRASS FORGE and BRASS FORGE is squeezed into the step of copper rod:
The step that solid BRASS FORGE is pushed in described founding comprises:
1), the electrolytic copper material that accounts for brass raw material 45% is dropped in power frequency copper smelting furnace, the industry that goes into operation voltage high pressure 380V, then toward adding 0.1% environmental protection refining slag-cleaning agent (environmental protection scarfing cinder refining agent be herein the production of Shanghai Wang Nan metal flux company limited can directly purchase this example do not comment carefully and state) in power frequency copper smelting furnace, be warming up to brass raw material and dissolve completely, obtain copper liquid;
2), the low lead ring that accounts for brass raw material 19% protected to brass waste material divide in proportion 1～2 batch to drop in above-mentioned copper liquid, stir in batches, reduce loss, improve melting efficiency;
3), then the zinc ingot metal that accounts for brass raw material 25% is added in copper liquid successively, continuously stirring melts completely to raw material;
4), then in power frequency copper smelting furnace, add the bismuth that accounts for brass raw material 0.8% again, be stirred to fusing;
5), toward adding the magnesium that accounts for brass raw material 0.01% and the tin that accounts for brass raw material 0.01% in power frequency copper smelting furnace, be pressed into copper liquid inner and stir and make it fusing;
6), in power frequency copper smelting furnace, add 0.1% environmental protection refining slag-cleaning agent again, be pressed into copper liquid inner, continuously stirring evenly makes it fusing and with the low pressure refining 5min of 220V;
7), the chemical composition of stokehold sampling and measuring copper liquid, after sampling, power frequency copper smelting furnace suspends industrial voltage high pressure 380V, the industry that goes into operation voltage low pressure 180V, carries out slag hitting;
8), according to composition test result, readjust the composition of copper liquid, fill into raw material, reopen industrial voltage high pressure 380V, be stirred to raw material and melt completely, be then warming up to complete flame twice, temperature is 1060 ℃;
9), change the industry low pressure 180 that goes into operation, temperature be 1020 ℃ standing 3 minutes, then carry out slag hitting, slag is beaten after clean copper water is poured in holding furnace;
10), crystallizer is installed on holding furnace, during installation, with drawing bar to center, to guarantee and tractor level;
11), finally with tractor, start to draw casting, before starting to draw casting, the copper water temp in holding furnace should be raised to little flame, industry voltage is 250V voltage, give in water jacket and send into a small amount of water simultaneously, the water yield is 2.2 L/s, preparation work starts to draw rod after carrying out, while just starting to draw rod, tractor speed slows down the min to 20mm/, , until draw rod success, after drawing rod success, voltage is dropped to 180VV, adjust tractor speed and be adjusted to 40mm/ min, and open cooling water switch, the water yield is 4.0 L/s, draw excellent length and reach one meter of above speed 50mm/ min that pulling rate can be adjusted to processing requirement, wait draw rod normal after, the synchronous saw of tractor is adjusted to the length that needs sawing, by long copper rod saw short one-tenth can be used for extruding short copper ingot,
The step that described BRASS FORGE is squeezed into copper rod is above-mentioned short copper ingot to be contained in squeezing device and to utilize squeezing device to apply external force to short copper ingot to make it to flow out from the extrusion die orifice of squeezing device, thereby obtains a kind of plastic processing method of required section form and size.
As Fig. 1, described squeezing device comprises container 1, overflow mould 2 and extrusion axis 3, in described container 1, there is the extruded hole 11 that can accommodatingly be extruded goods, described extrusion axis 3 is located at one end of extruded hole 11, described overflow mould 2 is fixedly arranged on container 1 away from that one end of extrusion axis 3, described overflow mould 2 is provided with and can will be extruded the extrusion die orifice 21 of product extrusion, the front end that is positioned at extrusion axis in the extruded hole of described container 1 is also provided with extruding pad 4, and the free end of described extrusion axis can advance simultaneously or retreat with pushing drive unit phase interlock and by pushing drive unit.
The step tool that BRASS FORGE is squeezed into copper rod has the following advantages:
(1) brass alloys can improve the deformability of metal by extruding.Metal in strong three-dimensional compressive stress state, can be given full play to its plasticity in crimp district, obtains aximal deformation value.
(2) overall quality of extruded product is high.Crimp can improve the tissue of metallic substance, improve its mechanical property, particularly for some, there is the copper alloy of extrusion effect, the like product that longitudinal (direction of extrusion) mechanical property of its extruded product is produced far above other working methods makes finished product copper rod have good physicals, specific as follows:
1, tensile strength is high: tensile strength reaches 365Rm/MPa, meets GB/T13808～92 standard.
2, elongation is good: elongation reaches 20%, meets GB/T13808～92 standard.
The low lead ring that adopts the specific formula of the present invention and production technique to produce is protected and is extruded round brass rod, its physicals and surface quality are all good, can reduce hot-water heating industry electroplates in polishing, mechanical workout, waste product in impact briquetting, improve yield rate approximately 10%～20%, having solved hot-water heating industry protects and draws the low problem of the poor yield rate of casting rod physicals because of low lead ring for many years, adopt bismuth metal to replace plumbous, improved the machinability of round brass rod, the strict order of addition of controlling various raw materials in production process, avoided the scaling loss of each material effective component, reduced raw materials cost.
Embodiment bis-:
The embodiment of the present invention two discloses a kind of low lead and extrudes round brass rod, comprises that the raw material of following weight per-cent forms: electrolytic copper material 48%, low lead ring are protected foundry returns 25%, bismuth 0.9%, zinc ingot metal 28%, magnesium 0.02%, tin 0.02%.Above-mentioned each raw material is all dried feed.
By above-mentioned proportioning raw materials, produce the production method that low lead extrudes round brass rod, comprise that founding pushes the step of solid BRASS FORGE and BRASS FORGE is squeezed into the step of copper rod:
The step that solid BRASS FORGE is pushed in described founding comprises:
1), the electrolytic copper material that accounts for brass raw material 48% is dropped in power frequency copper smelting furnace, the industry that goes into operation voltage high pressure 380V, then toward adding 0.1% environmental protection refining slag-cleaning agent (environmental protection scarfing cinder refining agent be herein the production of Shanghai Wang Nan metal flux company limited can directly purchase the embodiment of the present invention do not comment carefully and state) in power frequency copper smelting furnace, be warming up to brass raw material and dissolve completely, obtain copper liquid;
2), the low lead ring that accounts for brass raw material 25% protected to brass waste material divide in proportion 1～2 batch to drop in above-mentioned copper liquid, stir in batches, reduce loss, improve melting efficiency;
3), then the zinc ingot metal that accounts for brass raw material 28% is added in copper liquid successively, continuously stirring melts completely to raw material;
4), then in power frequency copper smelting furnace, add the bismuth that accounts for brass raw material 0.9% again, be stirred to fusing;
5), toward adding the magnesium that accounts for brass raw material 0.02% and the tin that accounts for brass raw material 0.02% in power frequency copper smelting furnace, be pressed into copper liquid inner and stir and make it fusing;
6), in power frequency copper smelting furnace, add 0.1% environmental protection refining slag-cleaning agent again, be pressed into copper liquid inner, continuously stirring evenly makes it fusing and with the low pressure refining 8min of 235V;
7), the chemical composition of stokehold sampling and measuring copper liquid, after sampling, power frequency copper smelting furnace suspends industrial voltage high pressure 380V, the industry that goes into operation voltage low pressure 200V, carries out slag hitting;
8), according to composition test result, readjust the composition of copper liquid, fill into raw material, reopen industrial voltage high pressure 380V, be stirred to raw material and melt completely, be then warming up to complete flame twice, temperature is 1080 ℃;
9), change the industry low pressure 200V that goes into operation, temperature be 1030 ℃ standing 4 minutes, then carry out slag hitting, slag is beaten after clean copper water is poured in holding furnace;
10), crystallizer is installed on holding furnace, during installation, with drawing bar to center, to guarantee and tractor level;
11), finally with tractor, start to draw casting, before starting to draw casting, the copper water temp in holding furnace should be raised to little flame, industry voltage is 280V voltage, give in water jacket and send into a small amount of water simultaneously, the water yield is 2.2 L/s, preparation work starts to draw rod after carrying out, while just starting to draw rod, tractor speed slows down the min to 30mm/, , until draw rod success, after drawing rod success, voltage is dropped to 220V, adjust tractor speed and be adjusted to 50mm/ min, and open cooling water switch, the water yield is 4.0 L/s, draw excellent length and reach one meter of above speed 60mm/ min that pulling rate can be adjusted to processing requirement, wait draw rod normal after, the synchronous saw of tractor is adjusted to the length that needs sawing, by long copper rod saw short one-tenth can be used for extruding short copper ingot,
The step that described BRASS FORGE is squeezed into copper rod is above-mentioned short copper to be contained in squeezing device and to utilize squeezing device to apply external force to short copper ingot to make it to flow out from the extrusion die orifice of squeezing device, thereby obtains a kind of plastic processing method of required section form and size.The squeezing device here adopts implements a disclosed squeezing device.
Embodiment tri-:
The embodiment of the present invention two discloses a kind of low lead and extrudes round brass rod, comprises that the raw material of following weight per-cent forms: electrolytic copper material 50%, low lead ring are protected foundry returns 29%, bismuth 1.0%, zinc ingot metal 30%, magnesium 0.02%, tin 0.02%.Above-mentioned each raw material is all dried feed.
Above-mentioned raw materials proportioning is produced the production method that low lead extrudes round brass rod, comprises that founding pushes the step of solid BRASS FORGE and BRASS FORGE is squeezed into the step of copper rod:
The step that solid BRASS FORGE is pushed in described founding comprises:
1), the electrolytic copper material that accounts for brass raw material 50% is dropped in power frequency copper smelting furnace, the industry that goes into operation voltage high pressure 380V, then toward adding 0.1% environmental protection refining slag-cleaning agent in power frequency copper smelting furnace, (environmental protection scarfing cinder refining agent is herein that sight can be directly adopted in the production of Shanghai Wang Nan metal flux company limited, belong to well known materials, the embodiment of the present invention does not describe in detail), be warming up to brass raw material and dissolve completely, obtain copper liquid;
2), the low lead ring that accounts for brass raw material 29% protected to brass waste material divide in proportion 1～2 batch to drop in above-mentioned copper liquid, stir in batches, reduce loss, improve melting efficiency;
3), then the zinc ingot metal that accounts for brass raw material 30% is added in copper liquid successively, continuously stirring melts completely to raw material;
4), then in power frequency copper smelting furnace, add the bismuth that accounts for brass raw material 1.0% again, be stirred to fusing;
5), toward adding the magnesium that accounts for brass raw material 0.02% and the tin that accounts for brass raw material 0.02% in power frequency copper smelting furnace, be pressed into copper liquid inner and stir and make it fusing;
6), in power frequency copper smelting furnace, add 0.1% environmental protection refining slag-cleaning agent again, be pressed into copper liquid inner, continuously stirring evenly makes it fusing and with the low pressure refining 10min of 250V;
7), the chemical composition of stokehold sampling and measuring copper liquid, after sampling, power frequency copper smelting furnace suspends industrial voltage high pressure 380V, the industry that goes into operation voltage low pressure 220V, carries out slag hitting;
8), according to composition test result, readjust the composition of copper liquid, fill into raw material, reopen industrial voltage high pressure 380V, be stirred to raw material and melt completely, be then warming up to complete flame twice, temperature is 1100 ℃;
9), change the industry low pressure 220V that goes into operation, temperature be 1040 ℃ standing 5 minutes, then carry out slag hitting, slag is beaten after clean copper water is poured in holding furnace;
10), crystallizer is installed on holding furnace, during installation, with drawing bar to center, to guarantee and tractor level;
11), finally with tractor, start to draw casting, before starting to draw casting, the copper water temp in holding furnace should be raised to little flame, industry voltage is 300V voltage, give in water jacket and send into a small amount of water simultaneously, the water yield is 2.2 L/s, preparation work starts to draw rod after carrying out, while just starting to draw rod, tractor speed slows down the min to 40mm/, , until draw rod success, after drawing rod success, voltage is dropped to 240V, adjust tractor speed and be adjusted to 50mm/ min, and open cooling water switch, the water yield is 4.0 L/s, draw excellent length and reach one meter of above speed 70mm/ min that pulling rate can be adjusted to processing requirement, wait draw rod normal after, the synchronous saw of tractor is adjusted to the length that needs sawing, by long copper rod saw short one-tenth can be used for extruding short copper ingot,
The step that described BRASS FORGE is squeezed into copper rod is above-mentioned short copper to be contained in squeezing device and to utilize squeezing device to apply external force to short copper ingot to make it to flow out from the extrusion die orifice of squeezing device, thereby obtains a kind of plastic processing method of required section form and size.The squeezing device here adopts implements a disclosed squeezing device.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (7)
1. low lead extrudes a round brass rod, it is characterized in that: the raw material that comprises following weight per-cent forms:
Electrolytic copper material 45～50%, low lead ring are protected foundry returns 19～29%, bismuth 0.8～1.0%, zinc ingot metal 25～30%, magnesium 0.01～0.02%, tin 0.01～0.02%.
2. low lead according to claim 1 extrudes round brass rod, it is characterized in that: above-mentioned each raw material is all dry raw material.
3. low lead according to claim 1 and 2 extrudes round brass rod, it is characterized in that: it is that low lead ring is protected brass waste material that described low lead ring is protected foundry returns.
4. low lead extrudes a method for round brass rod, it is characterized in that: comprise that founding pushes the step of solid BRASS FORGE and BRASS FORGE is squeezed into the step of copper rod:
The step that solid BRASS FORGE is pushed in described founding comprises:
1), will account for the electrolytic copper material of brass raw material 45～50% drop in power frequency copper smelting furnace, the industry that goes into operation voltage high pressure 380V then adds 0.1% environmental protection refining slag-cleaning agent in power frequency copper smelting furnace, is warming up to brass raw material and dissolves completely, obtains copper liquid;
2), the low lead ring that accounts for brass raw material 19～29% protected to brass waste material divide in proportion 1～2 batch to drop in above-mentioned copper liquid, stir in batches, reduce loss, improve melting efficiency;
3), then the zinc ingot metal that accounts for brass raw material 25～30% is added in copper liquid successively, continuously stirring melts completely to raw material;
4), then in power frequency copper smelting furnace, add the bismuth that accounts for brass raw material 0.8～1.0% again, be stirred to fusing;
5), toward adding the magnesium that accounts for brass raw material 0.01～0.02% and the tin that accounts for brass raw material 0.01～0.02% in power frequency copper smelting furnace, be pressed into copper liquid inner and stir and make it fusing;
6), in power frequency copper smelting furnace, add 0.1% environmental protection refining slag-cleaning agent again, be pressed into copper liquid inner, continuously stirring evenly makes it fusing and with low pressure refining 5～10min of 220～250V;
7), the chemical composition of stokehold sampling and measuring copper liquid, after sampling, power frequency copper smelting furnace suspends industrial voltage high pressure 380V, the industry that goes into operation voltage low pressure 180～220V, carries out slag hitting;
8), according to composition test result, readjust the composition of copper liquid, fill into raw material, reopen industrial voltage high pressure 380V, be stirred to raw material and melt completely, be then warming up to complete flame twice, temperature is 1060～1100 ℃;
9), change the industry low pressure 180～220V that goes into operation, temperature be 1020～1040 ℃ standing 3～5 minutes, then carry out slag hitting, slag is beaten after clean copper water is poured in holding furnace;
10), crystallizer is installed on holding furnace, during installation, with drawing bar to center, to guarantee and tractor level;
11), finally with tractor, start to draw casting, before starting to draw casting, the copper water temp in holding furnace should be raised to little flame, industry voltage is 250V～300V voltage, give in water jacket and send into a small amount of water simultaneously, the water yield is 2.2 L/s, preparation work starts to draw rod after carrying out, while just starting to draw rod, tractor speed slows down the min to 20～40mm/, , until draw rod success, after drawing rod success, voltage is dropped to 180V～240V, adjust tractor speed and be adjusted to 40～50mm/ min, and open cooling water switch, the water yield is 4.0 L/s, draw excellent length and reach one meter of above speed 50～70mm/ min that pulling rate can be adjusted to processing requirement, wait draw rod normal after, the synchronous saw of tractor is adjusted to the length that needs sawing, by long copper rod saw short one-tenth can be used for extruding short copper ingot,
The step that described BRASS FORGE is squeezed into copper rod is above-mentioned short copper ingot to be contained in squeezing device and to utilize squeezing device to apply external force to short copper ingot to make it to flow out from the extrusion die orifice of squeezing device, thereby obtains a kind of plastic processing method of required section form and size.
5. low lead according to claim 4 extrudes the method for round brass rod, it is characterized in that: the temperature of described flame is 1060～1100 ℃.
6. low lead according to claim 4 extrudes the method for round brass rod, it is characterized in that: described squeezing device comprises container, overflow mould and extrusion axis, in described container, there is the extruded hole that can accommodatingly be extruded goods, described extrusion axis is located at one end of extruded hole, described overflow mould is fixedly arranged on container away from that one end of extrusion axis, described overflow mould is provided with and can will be extruded the extrusion die orifice of product extrusion, and the free end of described extrusion axis can advance simultaneously or retreat with pushing drive unit phase interlock and by pushing drive unit.
7. low lead according to claim 6 extrudes the method for round brass rod, it is characterized in that: the front end that is positioned at extrusion axis in the extruded hole of described container is also provided with extruding pad.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772358A (en) * | 2015-04-28 | 2015-07-15 | 哈尔滨理工大学 | Metal alternative extrusion forming device and method |
| CN106119599A (en) * | 2016-06-23 | 2016-11-16 | 龙岩市鸿航金属科技有限公司 | Lead-free free-cutting draws the production method of casting rod |
| CN109022902A (en) * | 2018-10-24 | 2018-12-18 | 玉环澳龙阀门有限公司 | A kind of anti-dezincification environmental protection copper rod of low lead and preparation process |
| CN113355531A (en) * | 2021-05-28 | 2021-09-07 | 河南豫光金铅股份有限公司 | Production method for directly smelting brass raw material into copper anode plate |
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| CN102477498A (en) * | 2010-11-26 | 2012-05-30 | 摩登岛股份有限公司 | Easily-cut environment-friendly brass alloy |
| CN102653828A (en) * | 2011-03-03 | 2012-09-05 | 中宇建材集团有限公司 | Preparation method of low-lead environment-friendly grade-A copper ingot |
| CN102517466A (en) * | 2011-12-30 | 2012-06-27 | 中宇建材集团有限公司 | Preparation method of high-quality arsenic-brass bars |
| WO2013115363A1 (en) * | 2012-02-01 | 2013-08-08 | Toto株式会社 | Brass with excellent corrosion resistance |
| CN102581061A (en) * | 2012-03-09 | 2012-07-18 | 泉州中宇卫浴科技实业有限公司 | Production method for seamless brass pipe |
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| CN104772358A (en) * | 2015-04-28 | 2015-07-15 | 哈尔滨理工大学 | Metal alternative extrusion forming device and method |
| CN106119599A (en) * | 2016-06-23 | 2016-11-16 | 龙岩市鸿航金属科技有限公司 | Lead-free free-cutting draws the production method of casting rod |
| CN109022902A (en) * | 2018-10-24 | 2018-12-18 | 玉环澳龙阀门有限公司 | A kind of anti-dezincification environmental protection copper rod of low lead and preparation process |
| CN113355531A (en) * | 2021-05-28 | 2021-09-07 | 河南豫光金铅股份有限公司 | Production method for directly smelting brass raw material into copper anode plate |
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