CN103160699A - Process for producing copper-iron alloy for low-alloy grey cast ion cylinder sleeve - Google Patents

Process for producing copper-iron alloy for low-alloy grey cast ion cylinder sleeve Download PDF

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Publication number
CN103160699A
CN103160699A CN2013101057248A CN201310105724A CN103160699A CN 103160699 A CN103160699 A CN 103160699A CN 2013101057248 A CN2013101057248 A CN 2013101057248A CN 201310105724 A CN201310105724 A CN 201310105724A CN 103160699 A CN103160699 A CN 103160699A
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China
Prior art keywords
copper
parts
iron alloy
cylinder sleeve
alloy
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CN2013101057248A
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Chinese (zh)
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CN103160699B (en
Inventor
王季明
张彩霞
毛永卫
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石家庄金刚凯源动力科技有限公司
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Abstract

The invention discloses a process for producing copper-iron alloy for a low-alloy grey cast ion cylinder sleeve. In order to solve the technical problems of high production cost, high quality risk and large environment pollution existing in the material copper for casting the cylinder sleeve, the adopted technical scheme is that the production process comprises the following steps of: proportioning raw materials according to the following weight ratio; adding the proportioned carbon steel to a medium-frequency electric furnace and smelting into liquid; adding the proportioned high-purity graphite and waste copper to the medium-frequency electric furnace and continuing smelting; detecting while adding electrolytic copper for continuously smelting by utilizing a spectrograph to detect the weight percentage of copper in the copper iron alloy liquid, so that the content of the copper in the copper iron alloy liquid reaches more than 60%; and utilizing an overhead crane and a pouring ladle to pour copper iron alloy liquid to a cooling water pond for cooling for 10 minutes to 15 minutes when the temperature of the copper iron alloy liquid reaches 1370 DEG C to 1390 DEG C; and drying and packaging the cooled copper iron alloy blocks. The process has the beneficial effect of reasonably recycling the waste copper, reducing the production cost, improving the abrasive resistance of the cylinder sleeve and prolonging the service life of the cylinder sleeve.

Description

A kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses
Technical field
The invention belongs to casting smelting Technology field, relate to a kind of production technique of copper-iron alloy, particularly a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses.
Background technology
Cylinder sleeve is the key components and parts that is arranged in oil engine, is the strength member that affects engine power, life-span and environmental protection exhaust emissions amount.in the course of the work, in cylinder sleeve, table is subjected to directly affecting of high-temperature high-pressure fuel gas, and with piston ring and skirt of piston, the high-speed slide friction occurs all the time, cylinder sleeve ceaselessly is worn, outside surface contacts with water coolant and is corroded, and the larger temperature difference of surfaces externally and internally makes cylinder sleeve produce serious thermal stresses, piston not only aggravates its internal surface friction to the transverse thrust of cylinder sleeve, also can it produce crooked, when transverse thrust changes direction, piston also clashes into cylinder sleeve, in order to work under this rugged environment with following, the starting material that the production cylinder sleeve adopts must possess certain physical strength, wear-resistant, high temperature resistant, high pressure resistant, corrosion resistant performance, wherein wear resistance is the most important.
In the numerous kinds of cylinder sleeve, the low-alloy grey-cast iron cylinder sleeve is used more extensive, alloying element wherein has boron, phosphorus, copper, chromium, vanadium, titanium, molybdenum, nickel, tin etc., adding of copper is mainly to improve matrix content of pearlite in alloy in metallographic structure, refine pearlite, thereby improve hardness and tensile strength, improve the wear resistance of cylinder sleeve.In the castingprocesses of cylinder sleeve, electrolytic copper, copper scrap (copper scrap electric wire, copper scrap spare, copper scrap pipe etc.), copper sponge etc. are generally adopted in adding of copper at present.Electrolytic copper is cupric greater than 99.9% high purity copper, and the electrolysis production power consumption is high, makes the price of electrolytic copper higher, and must be cut into piece to copper coin before adding, so add the cost of electrolytic copper too high during the casting cylinder sleeve.Contain the harmful elements such as lead, zinc, aluminium in copper scrap, be difficult to satisfy technological standard, so add copper scrap to be easy to occur quality problems.The copper sponge copper content is low, and electric furnace adds specific absorption low, and environmental pollution is large.
Summary of the invention
the objective of the invention is for solve casting during cylinder sleeve material therefor copper exist production cost high, quality risk is large, the technical problem that environmental pollution is large, in order to address these problems, we have designed a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses, utilize the copper-iron alloy of this explained hereafter satisfying on the basis of technological standard, solved the electrolytic copper production cost too high, quality problems easily appear in copper scrap, the heavy-polluted technical barrier of copper sponge specific absorption low environment, this technique makes copper scrap obtain reasonable utilization, reduced the production cost of cylinder sleeve, improved the wear resistance of cylinder sleeve, extended the work-ing life of cylinder sleeve.
The present invention realizes that the technical scheme that goal of the invention adopts is: a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses, and key is: described production technique comprises the following steps:
A, by following weight ratio proportioning raw material: 51 ~ 55 parts of copper scraps, 4 ~ 6 parts of electrolytic coppers, 37 ~ 40 parts of carbon steels, 2 ~ 4 parts of high purity graphites;
B, add the carbon steel of getting ready electrosmelting of intermediate frequency to become liquid;
C, the high purity graphite of getting ready and copper scrap are joined continue melting in middle frequency furnace;
D, utilize spectrograph to detect in middle frequency furnace the weight percent of copper in copper-iron alloy liquid, frontier inspection is surveyed the limit and is added electrolytic copper to continue melting, and the content of copper in copper-iron alloy liquid is reached more than 60%;
E, when the temperature of copper-iron alloy liquid reaches 1370 ~ 1390 ℃, utilize overhead traveling crane to hang with pouring ladle copper-iron alloy liquid poured into the cooling 10 ~ 15min in cooling basin;
F, with the airing of cooled copper-iron alloy piece, packing.
The weight ratio of each raw material described in step a is: 51.2 parts of copper scraps, 4 parts of electrolytic coppers, 37 parts of carbon steels, 2 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 52 parts of copper scraps, 4.8 parts of electrolytic coppers, 37.9 parts of carbon steels, 2.5 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 52.9 parts of copper scraps, 5.7 parts of electrolytic coppers, 38.5 parts of carbon steels, 2.9 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 53.8 parts of copper scraps, 5.9 parts of electrolytic coppers, 39.2 parts of carbon steels, 3.4 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 55 parts of copper scraps, 6 parts of electrolytic coppers, 40 parts of carbon steels, 3 parts of high purity graphites.
The invention has the beneficial effects as follows: this technique is to contain micro-carbon steel and copper scrap as main raw material, add a small amount of electrolytic copper and high purity graphite, in fusion process, frontier inspection survey limit adds electrolytic copper, the content of copper in copper-iron alloy liquid is reached more than 60%, the product copper-iron alloy that finally obtains is satisfying under the prerequisite of technological standard, for the required starting material copper of casting cylinder sleeve provides a kind of new production technique.This technique has reduced the usage quantity of electrolytic copper, has reduced production cost, under the prerequisite that guarantees quality product, copper scrap is fully used simultaneously, has also avoided the environmental pollution of using copper sponge to cause.Use carbon steel can strengthen hardness and the physical strength of copper-iron alloy, add high purity graphite can strengthen that copper-iron alloy is high temperature resistant, high pressure resistant, corrosion-resistant, wear-resistant, oxidation resistant performance, thereby improve the overall performance of cylinder sleeve, extend the work-ing life of cylinder sleeve.
Embodiment
A kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses, key is: described production technique comprises the following steps:
A, by following weight ratio proportioning raw material: 51 ~ 55 parts of copper scraps, 4 ~ 6 parts of electrolytic coppers, 37 ~ 40 parts of carbon steels, 2 ~ 4 parts of high purity graphites;
B, add the carbon steel of getting ready electrosmelting of intermediate frequency to become liquid;
C, the high purity graphite of getting ready and copper scrap are joined continue melting in middle frequency furnace;
D, utilize spectrograph to detect in middle frequency furnace the weight percent of copper in copper-iron alloy liquid, frontier inspection is surveyed the limit and is added electrolytic copper to continue melting, and the content of copper in copper-iron alloy liquid is reached more than 60%;
E, when the temperature of copper-iron alloy liquid reaches 1370 ~ 1390 ℃, utilize overhead traveling crane to hang with pouring ladle copper-iron alloy liquid poured into the cooling 10 ~ 15min in cooling basin;
F, with the airing of cooled copper-iron alloy piece, packing.
The weight ratio of each raw material described in step a is: 51.2 parts of copper scraps, 4 parts of electrolytic coppers, 37 parts of carbon steels, 2 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 52 parts of copper scraps, 4.8 parts of electrolytic coppers, 37.9 parts of carbon steels, 2.5 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 52.9 parts of copper scraps, 5.7 parts of electrolytic coppers, 38.5 parts of carbon steels, 2.9 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 53.8 parts of copper scraps, 5.9 parts of electrolytic coppers, 39.2 parts of carbon steels, 3.4 parts of high purity graphites.
The weight ratio of each raw material described in step a is: 55 parts of copper scraps, 6 parts of electrolytic coppers, 40 parts of carbon steels, 3 parts of high purity graphites.
Owing to all containing trace element in carbon steel and copper scrap, so when selecting materials, select trace element carbon steel and copper scrap up to standard by check.
Embodiment 1, preparation carbon steel 550kg, electrolytic copper 60kg, carbon steel 400kg, high purity graphite 30kg produce, and the weight percent of each element is as shown in table 1 in check gained copper-iron alloy:
Table 1
Cu Si S P C Pb
61.00 1.27 0.06 0.05 2.78 0.02
Sb Zn Sn Al V Ti
0.06 0.03 0.07 0.03 0.02 0.03
Cr Mn As B Mg Fe
0.05 0.03 0.01 0.008 0.03 All the other
As shown in Table 1, in copper-iron alloy, the weight percent of each element meets technological standard.
Embodiment 2, preparation carbon steel 538kg, electrolytic copper 59kg, carbon steel 392kg, high purity graphite 34kg produce, and the weight percent of each element is as shown in table 2 in check gained copper-iron alloy:
Table 2
Cu Si S P C Pb
61.50 1.25 0.07 0.06 2.65 0.03
Sb Zn Sn Al V Ti
0.08 0.04 0.09 0.04 0.03 0.04
Cr Mn As B Mg Fe
0.08 0.40 0.015 0.009 0.04 All the other
As shown in Table 2, in copper-iron alloy, the weight percent of each element meets technological standard.
Embodiment 3, preparation carbon steel 529kg, electrolytic copper 57kg, carbon steel 385kg, high purity graphite 29kg produce, and the weight percent of each element is as shown in table 3 in check gained copper-iron alloy:
Table 3
Cu Si S P C Pb
61.30 1.3 0.09 0.07 2.9 0.026
Sb Zn Sn Al V Ti
0.05 0.036 0.05 0.048 0.04 0.046
Cr Mn As B Mg Fe
0.06 0.30 0.018 0.006 0.026 All the other
As shown in Table 3, in copper-iron alloy, the weight percent of each element meets technological standard.
Embodiment 4, preparation carbon steel 520kg, electrolytic copper 48kg, carbon steel 379kg, high purity graphite 25kg produce, and the weight percent of each element is as shown in table 4 in check gained copper-iron alloy:
Table 4
Cu Si S P C Pb
62.50 1.29 0.06 0.065 3.1 0.04
Sb Zn Sn Al V Ti
0.07 0.02 0.098 0.035 0.025 0.034
Cr Mn As B Mg Fe
0.04 0.36 0.009 0.004 0.035 All the other
As shown in Table 4, in copper-iron alloy, the weight percent of each element meets technological standard.
Embodiment 5, preparation carbon steel 512kg, electrolytic copper 40kg, carbon steel 370kg, high purity graphite 20kg produce, and the weight percent of each element is as shown in table 5 in check gained copper-iron alloy:
Table 5
Cu Si S P C Pb
61.20 1.32 0.08 0.058 2.2 0.038
Sb Zn Sn Al V Ti
0.03 0.045 0.06 0.043 0.043 0.02
Cr Mn As B Mg Fe
0.09 0.20 0.013 0.007 0.048 All the other
As shown in Table 5, in copper-iron alloy, the weight percent of each element meets technological standard.
In sum, utilize the copper-iron alloy of this explained hereafter to meet technological standard, when having solved again simultaneously the casting cylinder sleeve due to the various problems that adds copper and bring, a kind of technique of new acquisition copper is provided, make copper scrap obtain reasonable utilization, reduce the production cost of cylinder sleeve, improved the wear resistance of cylinder sleeve, extended the work-ing life of cylinder sleeve.

Claims (6)

1. technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses, it is characterized in that: described production technique comprises the following steps:
A, by following weight ratio proportioning raw material: 51 ~ 55 parts of copper scraps, 4 ~ 6 parts of electrolytic coppers, 37 ~ 40 parts of carbon steels, 2 ~ 4 parts of high purity graphites;
B, add the carbon steel of getting ready electrosmelting of intermediate frequency to become liquid;
C, the high purity graphite of getting ready and copper scrap are joined continue melting in middle frequency furnace;
D, utilize spectrograph to detect in middle frequency furnace the weight percent of copper in copper-iron alloy liquid, frontier inspection is surveyed the limit and is added electrolytic copper to continue melting, and the weight percent of copper in copper-iron alloy liquid is reached more than 60%;
E, when the temperature of copper-iron alloy liquid reaches 1370 ~ 1390 ℃, utilize overhead traveling crane to hang with pouring ladle copper-iron alloy liquid poured into the cooling 10 ~ 15min in cooling basin;
F, with the airing of cooled copper-iron alloy piece, packing.
2. a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses according to claim 1, it is characterized in that: the weight ratio of each raw material described in step a is: 51.2 parts of copper scraps, 4 parts of electrolytic coppers, 37 parts of carbon steels, 2 parts of high purity graphites.
3. a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses according to claim 1, it is characterized in that: the weight ratio of each raw material described in step a is: 52 parts of copper scraps, 4.8 parts of electrolytic coppers, 37.9 parts of carbon steels, 2.5 parts of high purity graphites.
4. a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses according to claim 1, it is characterized in that: the weight ratio of each raw material described in step a is: 52.9 parts of copper scraps, 5.7 parts of electrolytic coppers, 38.5 parts of carbon steels, 2.9 parts of high purity graphites.
5. a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses according to claim 1, it is characterized in that: the weight ratio of each raw material described in step a is: 53.8 parts of copper scraps, 5.9 parts of electrolytic coppers, 39.2 parts of carbon steels, 3.4 parts of high purity graphites.
6. a kind of technique of producing the copper-iron alloy that the low-alloy grey-cast iron cylinder sleeve uses according to claim 1, it is characterized in that: the weight ratio of each raw material described in step a is: 55 parts of copper scraps, 6 parts of electrolytic coppers, 40 parts of carbon steels, 3 parts of high purity graphites.
CN201310105724.8A 2013-03-29 2013-03-29 Process for producing copper-iron alloy for low-alloy grey cast ion cylinder sleeve CN103160699B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107270597A (en) * 2017-07-06 2017-10-20 苏州泰隆制冷有限公司 A kind of fire-resistant high-performance copper-iron alloy reservoir
CN107321939A (en) * 2017-07-20 2017-11-07 河北城大金属集团有限公司 Small block monel preparation method based on washing process
CN107739860A (en) * 2017-10-16 2018-02-27 江西保太有色金属集团有限公司 A kind of inexpensive regeneration method of waste metal
CN109648265A (en) * 2018-12-27 2019-04-19 四川艾格瑞特模具科技股份有限公司 A kind of method of highly-efficient processing production precision machinery
WO2021018203A1 (en) * 2019-07-29 2021-02-04 西安斯瑞先进铜合金科技有限公司 Copper-iron alloy slab non-vacuum down-drawing continuous casting production process

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SU534515A1 (en) * 1974-11-18 1976-11-05 Предприятие П/Я Р-6575 Iron based alloy
CN1145415A (en) * 1996-03-12 1997-03-19 樊显理 Low Ni alum Ti alloyed wearproof cast iron
CN101250658A (en) * 2008-03-28 2008-08-27 常州武帆合金有限公司 Nickel copper alloy
CN101435035A (en) * 2008-12-23 2009-05-20 俞荣华 High-strength wear resistant brass
CN102534089A (en) * 2012-01-18 2012-07-04 邢台金后盾精密机械有限公司 Alloy cast iron rotor seat of twin-screw compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU534515A1 (en) * 1974-11-18 1976-11-05 Предприятие П/Я Р-6575 Iron based alloy
CN1145415A (en) * 1996-03-12 1997-03-19 樊显理 Low Ni alum Ti alloyed wearproof cast iron
CN101250658A (en) * 2008-03-28 2008-08-27 常州武帆合金有限公司 Nickel copper alloy
CN101435035A (en) * 2008-12-23 2009-05-20 俞荣华 High-strength wear resistant brass
CN102534089A (en) * 2012-01-18 2012-07-04 邢台金后盾精密机械有限公司 Alloy cast iron rotor seat of twin-screw compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107270597A (en) * 2017-07-06 2017-10-20 苏州泰隆制冷有限公司 A kind of fire-resistant high-performance copper-iron alloy reservoir
CN107321939A (en) * 2017-07-20 2017-11-07 河北城大金属集团有限公司 Small block monel preparation method based on washing process
CN107739860A (en) * 2017-10-16 2018-02-27 江西保太有色金属集团有限公司 A kind of inexpensive regeneration method of waste metal
CN109648265A (en) * 2018-12-27 2019-04-19 四川艾格瑞特模具科技股份有限公司 A kind of method of highly-efficient processing production precision machinery
WO2021018203A1 (en) * 2019-07-29 2021-02-04 西安斯瑞先进铜合金科技有限公司 Copper-iron alloy slab non-vacuum down-drawing continuous casting production process

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